Replaced handles with Arcs, added display names

Cargo.lock

@@ -816,6 +816,7 @@ dependencies = [
  "rapier2d",
  "rhai",
  "serde",
+ "smartstring",
  "toml",
  "walkdir",
 ]

Cargo.toml

@@ -75,3 +75,4 @@ clap = { version = "4.4.18", features = ["derive"] }
 log = "0.4.20"
 log4rs = { version = "1.2.0", features = ["console_appender"] }
 rhai = { version = "1.17.1", features = ["f32_float", "no_custom_syntax"] }
+smartstring = { version = "1.0.1" }

content/outfits.toml

@@ -1,4 +1,5 @@
 [outfit."plasma engines"]
+name = "Plasma Engines"
 thumbnail = "icon::engine"
 
 space.engine = 20
@@ -11,6 +12,7 @@ steering.power = 20
 
 [outfit."shield generator"]
 thumbnail = "icon::shield"
+name = "Shield Generator"
 
 space.outfit = 5
 shield.generation = 10
@@ -20,6 +22,7 @@ shield.delay = 2.0
 
 [outfit."blaster"]
 thumbnail = "icon::shield"
+name = "Blaster"
 
 space.weapon = 10
 

content/ship.toml

@@ -1,4 +1,5 @@
-[ship."Gypsum"]
+[ship."gypsum"]
+name = "Gypsum"
 sprite = "ship::gypsum"
 thumbnail = "icon::gypsum"
 size = 100
@@ -65,7 +66,7 @@ collision = [
 
 
 # Scripted explosion
-[[ship."Gypsum".collapse.event]]
+[[ship."gypsum".collapse.event]]
 time = 4.9
 effects = [
 	#[rustfmt:skip],
@@ -76,7 +77,7 @@ effects = [
 ]
 
 # Scripted explosion
-[[ship."Gypsum".collapse.event]]
+[[ship."gypsum".collapse.event]]
 time = 0.0
 effects = [
 	#[rustfmt:skip],

content/system.toml

@@ -1,7 +1,7 @@
 # TODO: big objects in one config
 
 [system."12 Autumn Above"]
-
+name = "12 Autumn Above"
 object.star.sprite = "star::star"
 object.star.position = [0.0, 0.0, 30.0]
 object.star.size = 2000

content/ui/flying.rhai

@@ -131,7 +131,7 @@ fn step(state) {
 	// Ships
 	{
 		for s in state.ships() {
-			let uid = s.get_uid();
+			let uid = s.phys_uid();
 			let sprite_name = `radar.ship.${uid}`;
 
 			if (
@@ -200,7 +200,8 @@ fn step(state) {
 	// System objects
 	{
 		for o in state.objects() {
-			let sprite_name = `radar.object.${o.get_label()}`;
+			let l = o.get_index();
+			let sprite_name = `radar.object.${l}`;
 
 			if !o.is_some() {
 				if sprite::exists(sprite_name) {

content/ui/landed.rhai

@@ -55,7 +55,7 @@ fn init(state) {
 	textbox::font_serif("title");
 	textbox::weight_bold("title");
 	if player.is_landed() {
-		textbox::set_text("title", player.landed_on().name());
+		textbox::set_text("title", player.landed_on().display_name());
 	}
 
 	textbox::add(

content/ui/outfitter.rhai

@@ -84,7 +84,7 @@ fn init(state) {
 	textbox::font_sans("ship_type");
 	textbox::align_center("ship_type");
 	if state.player_ship().is_some() {
-		textbox::set_text("ship_type", state.player_ship().name());
+		textbox::set_text("ship_type", state.player_ship().display_name());
 	}
 
 

crates/content/Cargo.toml

@@ -30,3 +30,4 @@ rapier2d = { workspace = true }
 lazy_static = { workspace = true }
 log = { workspace = true }
 rhai = { workspace = true }
+smartstring = { workspace = true }

crates/content/src/handle.rs

@@ -1,64 +0,0 @@
-//! This module defines lightweight handles for every content type.
-//! This isn't strictly necessary (we could refer to them using their string keys),
-//! but this approach doesn't require frequent string cloning, and
-//! gives each content type a distinct Rust type.
-//!
-//! We could also use raw references to content types, but that creates a mess of lifetimes
-//! in our code. It's managable, but the approach here is simpler and easier to understand.
-use std::{cmp::Eq, hash::Hash};
-
-/// A lightweight representation of a sprite
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct SpriteHandle {
-	pub(crate) index: usize,
-}
-
-/// A lightweight representation of system body
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct SystemObjectHandle {
-	/// TODO: pub in crate
-	pub system_handle: SystemHandle,
-	/// The index of this object in system.objects
-	pub body_index: usize,
-}
-
-/// A lightweight representation of an outfit
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct OutfitHandle {
-	/// TODO: pub in crate, currently for debug (same with all other handles)
-	pub index: usize,
-}
-
-/// A lightweight representation of a gun
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct GunHandle {
-	/// TODO
-	pub index: usize,
-}
-
-/// A lightweight representation of a ship
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct ShipHandle {
-	/// TODO
-	pub index: usize,
-}
-
-/// A lightweight representation of a star system
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct SystemHandle {
-	/// TODO
-	pub index: usize,
-}
-
-/// A lightweight representation of a faction
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct FactionHandle {
-	/// TODO
-	pub index: usize,
-}
-
-/// A lightweight representation of an effect
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct EffectHandle {
-	pub(crate) index: usize,
-}

crates/content/src/lib.rs

@@ -1,9 +1,6 @@
 #![warn(missing_docs)]
 
-//! This subcrate is responsible for loading, parsing, validating game content,
-//! which is usually stored in `./content`.
-
-mod handle;
+//! This subcrate is responsible for loading, parsing, validating game content.
 mod part;
 mod spriteautomaton;
 mod util;
@@ -11,18 +8,21 @@ mod util;
 use anyhow::{bail, Context, Result};
 use galactica_packer::{SpriteAtlas, SpriteAtlasImage};
 use log::warn;
+use rhai::ImmutableString;
+use serde::{Deserialize, Deserializer};
+use smartstring::{LazyCompact, SmartString};
 use std::{
-	//cell::OnceCell,
 	collections::HashMap,
+	fmt::Display,
 	fs::File,
 	io::Read,
 	num::NonZeroU32,
 	path::{Path, PathBuf},
+	sync::Arc,
 };
 use toml;
 use walkdir::WalkDir;
 
-pub use handle::*;
 pub use part::*;
 pub use spriteautomaton::*;
 
@@ -123,11 +123,50 @@ trait Build {
 		Self: Sized;
 }
 
+/// The type we use to index content objects
+/// These are only unique WITHIN each "type" of object!
+#[derive(Debug, Clone, Hash, Eq, PartialEq)]
+pub struct ContentIndex(Arc<SmartString<LazyCompact>>);
+
+impl From<ImmutableString> for ContentIndex {
+	fn from(value: ImmutableString) -> Self {
+		Self::new(&value)
+	}
+}
+
+impl ContentIndex {
+	/// Make a new ContentIndex from a strign
+	pub fn new(s: &str) -> Self {
+		Self(SmartString::from(s).into())
+	}
+
+	/// Get a &str to this index's content
+	pub fn as_str(&self) -> &str {
+		self.0.as_str()
+	}
+}
+
+impl<'d> Deserialize<'d> for ContentIndex {
+	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+	where
+		D: Deserializer<'d>,
+	{
+		let s = String::deserialize(deserializer)?;
+		Ok(Self::new(&s))
+	}
+}
+
+impl Display for ContentIndex {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		std::fmt::Display::fmt(&self.0, f)
+	}
+}
+
 /// Stores temporary data while building context objects
 #[derive(Debug)]
 pub(crate) struct ContentBuildContext {
 	/// Map effect names to handles
-	pub effect_index: HashMap<String, EffectHandle>,
+	pub effect_index: HashMap<String, Arc<Effect>>,
 }
 
 impl ContentBuildContext {
@@ -141,22 +180,29 @@ impl ContentBuildContext {
 /// Represents static game content
 #[derive(Debug)]
 pub struct Content {
-	/// Sprites
-	pub sprites: Vec<Sprite>,
-	/// Map strings to texture names.
-	/// This is only necessary because we need to hard-code a few texture names for UI elements.
-	sprite_index: HashMap<String, SpriteHandle>,
-
 	/// Keeps track of which images are in which texture
 	sprite_atlas: SpriteAtlas,
 
-	outfits: Vec<Outfit>,
-	guns: Vec<Gun>, // TODO: merge with outfit
-	ships: Vec<Ship>,
-	systems: Vec<System>,
-	factions: Vec<Faction>,
-	effects: Vec<Effect>,
-	config: Config,
+	/// Sprites defined in this game
+	pub sprites: HashMap<ContentIndex, Arc<Sprite>>,
+
+	/// Outfits defined in this game
+	pub outfits: HashMap<ContentIndex, Arc<Outfit>>,
+
+	/// Ships defined in this game
+	pub ships: HashMap<ContentIndex, Arc<Ship>>,
+
+	/// Systems defined in this game
+	pub systems: HashMap<ContentIndex, Arc<System>>,
+
+	/// Factions defined in this game
+	pub factions: HashMap<ContentIndex, Arc<Faction>>,
+
+	/// Effects defined in this game
+	pub effects: HashMap<ContentIndex, Arc<Effect>>,
+
+	/// Game configuration
+	pub config: Config,
 }
 
 // Loading methods
@@ -224,14 +270,12 @@ impl Content {
 			},
 
 			sprite_atlas: atlas,
-			systems: Vec::new(),
-			ships: Vec::new(),
-			guns: Vec::new(),
-			outfits: Vec::new(),
-			sprites: Vec::new(),
-			factions: Vec::new(),
-			effects: Vec::new(),
-			sprite_index: HashMap::new(),
+			systems: HashMap::new(),
+			ships: HashMap::new(),
+			outfits: HashMap::new(),
+			sprites: HashMap::new(),
+			factions: HashMap::new(),
+			effects: HashMap::new(),
 		};
 
 		// TODO: enforce sprite and image limits
@@ -285,23 +329,6 @@ impl Content {
 
 // Access methods
 impl Content {
-	/// Iterate over all valid system handles
-	pub fn iter_systems(&self) -> impl Iterator<Item = SystemHandle> {
-		(0..self.systems.len()).map(|x| SystemHandle { index: x })
-	}
-
-	/// Get a handle from a sprite name
-	pub fn get_sprite_handle(&self, name: &str) -> Option<SpriteHandle> {
-		self.sprite_index.get(name).map(|x| *x)
-	}
-
-	/// Get a sprite from a handle
-	pub fn get_sprite(&self, h: SpriteHandle) -> &Sprite {
-		// In theory, this could fail if h has a bad index, but that shouldn't ever happen.
-		// The only handles that exist should be created by this crate.
-		return &self.sprites[h.index as usize];
-	}
-
 	/// Get the list of atlas files we may use
 	pub fn atlas_files(&self) -> &Vec<String> {
 		return &self.sprite_atlas.atlas_list;
@@ -316,63 +343,4 @@ impl Content {
 	pub fn get_image(&self, idx: NonZeroU32) -> &SpriteAtlasImage {
 		&self.sprite_atlas.get_by_idx(idx)
 	}
-
-	/// Get an outfit from a handle
-	pub fn get_outfit(&self, h: OutfitHandle) -> &Outfit {
-		return &self.outfits[h.index];
-	}
-
-	/// Get a gun from a handle
-	pub fn get_gun(&self, h: GunHandle) -> &Gun {
-		return &self.guns[h.index];
-	}
-
-	/// Get a ship from a handle
-	pub fn get_ship(&self, h: ShipHandle) -> &Ship {
-		return &self.ships[h.index];
-	}
-
-	/// Get a system from a handle
-	pub fn get_system(&self, h: SystemHandle) -> &System {
-		return &self.systems[h.index];
-	}
-
-	/// Get a system object from a handle
-	pub fn get_system_object(&self, h: SystemObjectHandle) -> &SystemObject {
-		return &self.get_system(h.system_handle).objects[h.body_index];
-	}
-
-	/// Get a faction from a handle
-	pub fn get_faction(&self, h: FactionHandle) -> &Faction {
-		return &self.factions[h.index];
-	}
-
-	/// Get an effect from a handle
-	pub fn get_effect(&self, h: EffectHandle) -> &Effect {
-		return &self.effects[h.index];
-	}
-
-	/// Get content configuration
-	pub fn get_config(&self) -> &Config {
-		return &self.config;
-	}
 }
-
-/*
-TODO: don't pass content around?
-static mut CONTENT: OnceCell<Content> = OnceCell::new();
-
-/// Initialize content::CONTENT with the given paths
-pub fn init(content_dir: PathBuf, asset_dir: PathBuf, atlas_index: PathBuf) -> Result<()> {
-	let content = Content::load_dir(content_dir, asset_dir, atlas_index)?;
-	unsafe {
-		match CONTENT.set(content) {
-			Ok(()) => {}
-			Err(_) => {
-				bail!("cannot initialize content, already set.")
-			}
-		};
-	}
-	return Ok(());
-}
-*/

crates/content/src/part/effect.rs

@@ -1,20 +1,22 @@
 use anyhow::{Context, Result};
-use std::collections::HashMap;
+use std::{collections::HashMap, sync::Arc};
 
-use crate::{handle::SpriteHandle, Content, ContentBuildContext, EffectHandle};
+use crate::{Content, ContentBuildContext, Sprite};
 
 pub(crate) mod syntax {
+	use std::sync::Arc;
+
 	use anyhow::{bail, Result};
 	use galactica_util::to_radians;
 	use serde::Deserialize;
 
-	use crate::{Content, ContentBuildContext, EffectHandle, StartEdge};
+	use crate::{Content, ContentBuildContext, ContentIndex, StartEdge};
 	// Raw serde syntax structs.
 	// These are never seen by code outside this crate.
 
 	#[derive(Debug, Deserialize)]
 	pub struct Effect {
-		pub sprite: String,
+		pub sprite: ContentIndex,
 		pub size: f32,
 		pub size_rng: Option<f32>,
 		pub lifetime: TextOrFloat,
@@ -59,10 +61,11 @@ pub(crate) mod syntax {
 			self,
 			_build_context: &mut ContentBuildContext,
 			content: &mut Content,
-		) -> Result<EffectHandle> {
-			let sprite = match content.sprite_index.get(&self.sprite) {
+			name: &str,
+		) -> Result<Arc<super::Effect>> {
+			let sprite = match content.sprites.get(&self.sprite) {
 				None => bail!("sprite `{}` doesn't exist", self.sprite),
-				Some(t) => *t,
+				Some(t) => t.clone(),
 			};
 
 			let lifetime = match self.lifetime {
@@ -70,12 +73,11 @@ pub(crate) mod syntax {
 				TextOrFloat::Text(s) => {
 					if s == "inherit" {
 						// Match lifetime of first section of sprite
-						let sprite = content.get_sprite(sprite);
-						let sec = match sprite.start_at {
-							StartEdge::Top { section } => sprite.get_section(section),
-							StartEdge::Bot { section } => sprite.get_section(section),
-						};
-						sec.frame_duration * sec.frames.len() as f32
+						match &sprite.start_at {
+							StartEdge::Top { section } | StartEdge::Bot { section } => {
+								section.frame_duration * section.frames.len() as f32
+							}
+						}
 					} else {
 						bail!("bad effect lifetime, must be float or \"inherit\"",)
 					}
@@ -107,11 +109,8 @@ pub(crate) mod syntax {
 				}
 			};
 
-			let handle = EffectHandle {
-				index: content.effects.len(),
-			};
-			content.effects.push(super::Effect {
-				handle,
+			let e = Arc::new(super::Effect {
+				name: name.to_string(),
 				sprite,
 				velocity,
 				size: self.size,
@@ -126,7 +125,11 @@ pub(crate) mod syntax {
 				fade_rng: self.fade_rng.unwrap_or(0.0),
 			});
 
-			return Ok(handle);
+			content
+				.effects
+				.insert(ContentIndex::new(&e.name), e.clone());
+
+			return Ok(e);
 		}
 	}
 
@@ -144,13 +147,14 @@ pub(crate) mod syntax {
 			self,
 			build_context: &mut ContentBuildContext,
 			content: &mut Content,
-		) -> Result<EffectHandle> {
+			name: &str,
+		) -> Result<Arc<super::Effect>> {
 			// We do not insert anything into build_context here,
 			// since inline effects cannot be referenced by name.
 			Ok(match self {
-				Self::Effect(e) => e.add_to(build_context, content)?,
+				Self::Effect(e) => e.add_to(build_context, content, name)?,
 				Self::Label(l) => match build_context.effect_index.get(&l) {
-					Some(h) => *h,
+					Some(h) => h.clone(),
 					None => bail!("no effect named `{}`", l),
 				},
 			})
@@ -161,11 +165,11 @@ pub(crate) mod syntax {
 /// The effect a projectile will spawn when it hits something
 #[derive(Debug, Clone)]
 pub struct Effect {
-	/// This effect's handle
-	pub handle: EffectHandle,
-
 	/// The sprite to use for this effect.
-	pub sprite: SpriteHandle,
+	pub sprite: Arc<Sprite>,
+
+	/// This effect's name
+	pub name: String,
 
 	/// The height of this effect, in game units.
 	pub size: f32,
@@ -240,7 +244,7 @@ impl crate::Build for Effect {
 	) -> Result<()> {
 		for (effect_name, effect) in effects {
 			let h = effect
-				.add_to(build_context, content)
+				.add_to(build_context, content, &effect_name)
 				.with_context(|| format!("while evaluating effect `{}`", effect_name))?;
 			build_context.effect_index.insert(effect_name, h);
 		}

crates/content/src/part/faction.rs

@@ -1,13 +1,15 @@
 use anyhow::{bail, Result};
 use serde::Deserialize;
-use std::collections::HashMap;
+use std::{collections::HashMap, sync::Arc};
 
-use crate::{handle::FactionHandle, Content, ContentBuildContext};
+use crate::{Content, ContentBuildContext, ContentIndex};
 
 pub(crate) mod syntax {
 	use std::collections::HashMap;
 
 	use serde::Deserialize;
+
+	use crate::ContentIndex;
 	// Raw serde syntax structs.
 	// These are never seen by code outside this crate.
 
@@ -15,7 +17,7 @@ pub(crate) mod syntax {
 	pub struct Faction {
 		pub display_name: String,
 		pub color: [f32; 3],
-		pub relationship: HashMap<String, super::Relationship>,
+		pub relationship: HashMap<ContentIndex, super::Relationship>,
 	}
 }
 
@@ -44,18 +46,18 @@ pub enum Relationship {
 #[derive(Debug, Clone)]
 pub struct Faction {
 	/// The name of this faction
-	pub name: String,
+	pub index: ContentIndex,
+
+	/// The pretty name of this faction
+	pub display_name: String,
 
 	/// This faction's color.
 	/// Format is RGB, with each color between 0 and 1.
 	pub color: [f32; 3],
 
-	/// This faction's handle
-	pub handle: FactionHandle,
-
 	/// Relationships between this faction and other factions
 	/// This is guaranteed to contain an entry for ALL factions.
-	pub relationships: HashMap<FactionHandle, Relationship>,
+	pub relationships: HashMap<ContentIndex, Relationship>,
 }
 
 impl crate::Build for Faction {
@@ -66,34 +68,21 @@ impl crate::Build for Faction {
 		_build_context: &mut ContentBuildContext,
 		content: &mut Content,
 	) -> Result<()> {
-		// Keeps track of position in faction array.
-		// This lets us build FactionHandles before finishing all factions.
-		let faction_names: Vec<String> = factions.keys().map(|x| x.to_owned()).collect();
-
-		// Indexing will break if this is false.
-		assert!(content.factions.len() == 0);
-
-		for f_idx in 0..faction_names.len() {
-			let faction_name = &faction_names[f_idx];
-			let faction = &factions[faction_name];
-
-			// Handle for this faction
-			let h = FactionHandle { index: f_idx };
-
+		for (faction_name, faction) in &factions {
 			// Compute relationships
 			let mut relationships = HashMap::new();
-			for i in 0..faction_names.len() {
-				let f_other = &faction_names[i];
-				let h_other = FactionHandle { index: i };
-				if let Some(r) = faction.relationship.get(f_other) {
-					relationships.insert(h_other, *r);
+			for (other_name, other_faction) in &factions {
+				if let Some(r) = faction.relationship.get(&ContentIndex::new(other_name)) {
+					relationships.insert(ContentIndex::new(other_name), *r);
 				} else {
 					// Default relationship, if not specified
 
 					// Look at reverse direction...
-					let other = factions[f_other].relationship.get(faction_name);
+					let other = other_faction
+						.relationship
+						.get(&ContentIndex::new(&faction_name));
 					relationships.insert(
-						h_other,
+						ContentIndex::new(other_name),
 						// ... and pick a relationship based on that.
 						match other {
 							Some(Relationship::Hostile) => Relationship::Hostile {},
@@ -116,12 +105,15 @@ impl crate::Build for Faction {
 				);
 			}
 
-			content.factions.push(Self {
-				name: faction_name.to_owned(),
-				handle: h,
+			content.factions.insert(
+				ContentIndex::new(faction_name),
+				Arc::new(Self {
+					index: ContentIndex::new(faction_name),
+					display_name: faction.display_name.to_owned(),
 					relationships,
 					color: faction.color,
-			});
+				}),
+			);
 		}
 
 		return Ok(());

crates/content/src/part/outfit.rs

@@ -1,14 +1,18 @@
 use anyhow::{anyhow, Context, Result};
 use serde::Deserialize;
-use std::collections::HashMap;
+use std::{collections::HashMap, sync::Arc};
 
 use crate::{
-	handle::SpriteHandle, resolve_edge_as_edge, Content, ContentBuildContext, EffectHandle,
-	OutfitHandle, OutfitSpace, SectionEdge,
+	resolve_edge_as_edge, Content, ContentBuildContext, ContentIndex, Effect, OutfitSpace,
+	SectionEdge, Sprite,
 };
 
 pub(crate) mod syntax {
-	use crate::{effect, part::outfitspace, sprite::syntax::SectionEdge, ContentBuildContext};
+	use std::sync::Arc;
+
+	use crate::{
+		effect, part::outfitspace, sprite::syntax::SectionEdge, ContentBuildContext, ContentIndex,
+	};
 	use anyhow::{bail, Result};
 	use galactica_util::to_radians;
 	use serde::Deserialize;
@@ -17,7 +21,8 @@ pub(crate) mod syntax {
 
 	#[derive(Debug, Deserialize)]
 	pub struct Outfit {
-		pub thumbnail: String,
+		pub thumbnail: ContentIndex,
+		pub name: String,
 		pub engine: Option<Engine>,
 		pub steering: Option<Steering>,
 		pub space: outfitspace::syntax::OutfitSpace,
@@ -41,7 +46,7 @@ pub(crate) mod syntax {
 
 	#[derive(Debug, Deserialize)]
 	pub struct EngineFlare {
-		pub sprite: String,
+		pub sprite: ContentIndex,
 		pub on_start: Option<SectionEdge>,
 		pub on_stop: Option<SectionEdge>,
 	}
@@ -64,30 +69,33 @@ pub(crate) mod syntax {
 			build_context: &mut ContentBuildContext,
 			content: &mut crate::Content,
 		) -> Result<super::Gun> {
-			let projectile_sprite_handle = match content.sprite_index.get(&self.projectile.sprite) {
+			let projectile_sprite = match content
+				.sprites
+				.get(&ContentIndex::new(&self.projectile.sprite))
+			{
 				None => bail!(
 					"projectile sprite `{}` doesn't exist",
 					self.projectile.sprite,
 				),
-				Some(t) => *t,
+				Some(t) => t.clone(),
 			};
 
 			let impact_effect = match self.projectile.impact_effect {
-				Some(e) => Some(e.to_handle(build_context, content)?),
+				Some(e) => Some(e.to_handle(build_context, content, "")?),
 				None => None,
 			};
 
 			let expire_effect = match self.projectile.expire_effect {
-				Some(e) => Some(e.to_handle(build_context, content)?),
+				Some(e) => Some(e.to_handle(build_context, content, "")?),
 				None => None,
 			};
 
 			return Ok(super::Gun {
 				rate: self.rate,
 				rate_rng: self.rate_rng.unwrap_or(0.0),
-				projectile: super::Projectile {
+				projectile: Arc::new(super::Projectile {
 					force: self.projectile.force,
-					sprite: projectile_sprite_handle,
+					sprite: projectile_sprite,
 					size: self.projectile.size,
 					size_rng: self.projectile.size_rng,
 					speed: self.projectile.speed,
@@ -102,7 +110,7 @@ pub(crate) mod syntax {
 					impact_effect,
 					expire_effect,
 					collider: self.projectile.collider,
-				},
+				}),
 			});
 		}
 	}
@@ -129,17 +137,17 @@ pub(crate) mod syntax {
 #[derive(Debug, Clone)]
 pub struct Outfit {
 	/// This outfit's thumbnail
-	pub thumbnail: SpriteHandle,
+	pub thumbnail: Arc<Sprite>,
 
 	/// How much space this outfit requires
 	pub space: OutfitSpace,
 
-	/// This outfit's handle
-	pub handle: OutfitHandle,
-
 	/// The name of this outfit
 	pub name: String,
 
+	/// Thie outfit's index
+	pub index: ContentIndex,
+
 	/// How much engine thrust this outfit produces
 	pub engine_thrust: f32,
 
@@ -149,7 +157,7 @@ pub struct Outfit {
 	/// The engine flare sprite this outfit creates.
 	/// Its location and size is determined by a ship's
 	/// engine points.
-	pub engine_flare_sprite: Option<SpriteHandle>,
+	pub engine_flare_sprite: Option<Arc<Sprite>>,
 
 	/// Jump to this edge when engines turn on
 	pub engine_flare_on_start: Option<SectionEdge>,
@@ -191,7 +199,7 @@ pub struct BallCollider {
 #[derive(Debug, Clone)]
 pub struct Gun {
 	/// The projectile this gun produces
-	pub projectile: Projectile,
+	pub projectile: Arc<Projectile>,
 
 	/// Average delay between projectiles, in seconds.
 	pub rate: f32,
@@ -205,7 +213,7 @@ pub struct Gun {
 #[derive(Debug, Clone)]
 pub struct Projectile {
 	/// The projectile sprite
-	pub sprite: SpriteHandle,
+	pub sprite: Arc<Sprite>,
 
 	/// The average size of this projectile
 	/// (height in game units)
@@ -234,10 +242,10 @@ pub struct Projectile {
 	pub angle_rng: f32,
 
 	/// The effect this projectile will spawn when it hits something
-	pub impact_effect: Option<EffectHandle>,
+	pub impact_effect: Option<Arc<Effect>>,
 
 	/// The effect this projectile will spawn when it expires
-	pub expire_effect: Option<EffectHandle>,
+	pub expire_effect: Option<Arc<Effect>>,
 
 	/// Collider parameters for this projectile
 	pub collider: ProjectileCollider,
@@ -252,10 +260,6 @@ impl crate::Build for Outfit {
 		content: &mut Content,
 	) -> Result<()> {
 		for (outfit_name, outfit) in outfits {
-			let handle = OutfitHandle {
-				index: content.outfits.len(),
-			};
-
 			let gun = match outfit.gun {
 				None => None,
 				Some(g) => Some(
@@ -264,7 +268,7 @@ impl crate::Build for Outfit {
 				),
 			};
 
-			let thumb_handle = match content.sprite_index.get(&outfit.thumbnail) {
+			let thumbnail = match content.sprites.get(&outfit.thumbnail) {
 				None => {
 					return Err(anyhow!(
 						"thumbnail sprite `{}` doesn't exist",
@@ -272,14 +276,14 @@ impl crate::Build for Outfit {
 					))
 					.with_context(|| format!("in outfit `{}`", outfit_name));
 				}
-				Some(t) => *t,
+				Some(t) => t.clone(),
 			};
 
 			let mut o = Self {
-				thumbnail: thumb_handle,
+				index: ContentIndex::new(&outfit_name),
+				name: outfit.name,
+				thumbnail,
 				gun,
-				handle,
-				name: outfit_name.clone(),
 				engine_thrust: 0.0,
 				steer_power: 0.0,
 				engine_flare_sprite: None,
@@ -293,7 +297,7 @@ impl crate::Build for Outfit {
 
 			// Engine stats
 			if let Some(engine) = outfit.engine {
-				let sprite_handle = match content.sprite_index.get(&engine.flare.sprite) {
+				let sprite = match content.sprites.get(&engine.flare.sprite) {
 					None => {
 						return Err(anyhow!(
 							"flare sprite `{}` doesn't exist",
@@ -301,11 +305,10 @@ impl crate::Build for Outfit {
 						))
 						.with_context(|| format!("in outfit `{}`", outfit_name));
 					}
-					Some(t) => *t,
+					Some(t) => t.clone(),
 				};
 				o.engine_thrust = engine.thrust;
-				o.engine_flare_sprite = Some(sprite_handle);
-				let sprite = content.get_sprite(sprite_handle);
+				o.engine_flare_sprite = Some(sprite.clone());
 
 				// Flare animation will traverse this edge when the player presses the thrust key
 				// This leads from the idle animation to the transition animation
@@ -315,11 +318,9 @@ impl crate::Build for Outfit {
 						None
 					} else {
 						let x = x.unwrap();
-						let mut e = resolve_edge_as_edge(&x.val, 0.0, |x| {
-							sprite.get_section_handle_by_name(x)
-						})
+						let mut e = resolve_edge_as_edge(&sprite.sections, &x.val, 0.0)
 							.with_context(|| format!("in outfit `{}`", outfit_name))?;
-						match e {
+						match &mut e {
 							// Inherit duration from transition sequence
 							SectionEdge::Top {
 								section,
@@ -329,7 +330,7 @@ impl crate::Build for Outfit {
 								section,
 								ref mut duration,
 							} => {
-								*duration = sprite.get_section(section).frame_duration;
+								*duration = section.frame_duration;
 							}
 							_ => {
 								return Err(anyhow!(
@@ -351,11 +352,9 @@ impl crate::Build for Outfit {
 						None
 					} else {
 						let x = x.unwrap();
-						let mut e = resolve_edge_as_edge(&x.val, 0.0, |x| {
-							sprite.get_section_handle_by_name(x)
-						})
+						let mut e = resolve_edge_as_edge(&sprite.sections, &x.val, 0.0)
 							.with_context(|| format!("in outfit `{}`", outfit_name))?;
-						match e {
+						match &mut e {
 							// Inherit duration from transition sequence
 							SectionEdge::Top {
 								section,
@@ -365,7 +364,7 @@ impl crate::Build for Outfit {
 								section,
 								ref mut duration,
 							} => {
-								*duration = sprite.get_section(section).frame_duration;
+								*duration = section.frame_duration;
 							}
 							_ => {
 								return Err(anyhow!(
@@ -392,7 +391,7 @@ impl crate::Build for Outfit {
 				o.shield_strength = shield.strength.unwrap_or(0.0);
 			}
 
-			content.outfits.push(o);
+			content.outfits.insert(o.index.clone(), Arc::new(o));
 		}
 
 		return Ok(());

crates/content/src/part/ship.rs

@@ -2,12 +2,15 @@ use anyhow::{bail, Context, Result};
 use galactica_util::to_radians;
 use nalgebra::{Point2, Rotation2, Vector2};
 use rapier2d::geometry::{Collider, ColliderBuilder};
-use std::{collections::HashMap, fmt::Debug, hash::Hash};
+use std::{collections::HashMap, fmt::Debug, hash::Hash, sync::Arc};
 
-use crate::{handle::SpriteHandle, Content, ContentBuildContext, EffectHandle, OutfitSpace};
+use crate::{Content, ContentBuildContext, ContentIndex, Effect, OutfitSpace, Sprite};
 
 pub(crate) mod syntax {
-	use crate::part::{effect::syntax::EffectReference, outfitspace};
+	use crate::{
+		part::{effect::syntax::EffectReference, outfitspace},
+		ContentIndex,
+	};
 	use serde::Deserialize;
 
 	// Raw serde syntax structs.
@@ -15,8 +18,9 @@ pub(crate) mod syntax {
 
 	#[derive(Debug, Deserialize)]
 	pub struct Ship {
-		pub sprite: String,
-		pub thumbnail: String,
+		pub name: String,
+		pub sprite: ContentIndex,
+		pub thumbnail: ContentIndex,
 		pub size: f32,
 		pub engines: Vec<Engine>,
 		pub guns: Vec<Gun>,
@@ -91,14 +95,17 @@ pub(crate) mod syntax {
 /// Represents a ship chassis.
 #[derive(Debug, Clone)]
 pub struct Ship {
-	/// This ship's name
-	pub name: String,
+	/// This ship's display name
+	pub display_name: String,
+
+	/// This object's index
+	pub index: ContentIndex,
 
 	/// This ship's sprite
-	pub sprite: SpriteHandle,
+	pub sprite: Arc<Sprite>,
 
 	/// This ship's thumbnail
-	pub thumbnail: SpriteHandle,
+	pub thumbnail: Arc<Sprite>,
 
 	/// The size of this ship.
 	/// Measured as unrotated height,
@@ -122,9 +129,6 @@ pub struct Ship {
 	/// Collision shape for this ship
 	pub collider: CollisionDebugWrapper,
 
-	/// Remove later
-	pub aspect: f32,
-
 	/// Reduction in angular velocity over time
 	pub angular_drag: f32,
 
@@ -217,7 +221,7 @@ pub struct ShipDamage {
 #[derive(Debug, Clone)]
 pub struct DamageEffectSpawner {
 	/// The effect to create
-	pub effect: EffectHandle,
+	pub effect: Arc<Effect>,
 
 	/// How often to create this effect
 	pub frequency: f32,
@@ -231,7 +235,7 @@ pub struct DamageEffectSpawner {
 #[derive(Debug, Clone)]
 pub struct CollapseEffectSpawner {
 	/// The effect to create
-	pub effect: EffectHandle,
+	pub effect: Arc<Effect>,
 
 	/// How many effects to create
 	pub count: f32,
@@ -267,26 +271,25 @@ impl crate::Build for Ship {
 		ct: &mut Content,
 	) -> Result<()> {
 		for (ship_name, ship) in ship {
-			let sprite = match ct.sprite_index.get(&ship.sprite) {
+			let sprite = match ct.sprites.get(&ship.sprite) {
 				None => bail!(
 					"In ship `{}`: sprite `{}` doesn't exist",
 					ship_name,
 					ship.sprite
 				),
-				Some(t) => *t,
+				Some(t) => t.clone(),
 			};
 
-			let thumbnail = match ct.sprite_index.get(&ship.thumbnail) {
+			let thumbnail = match ct.sprites.get(&ship.thumbnail) {
 				None => bail!(
 					"In ship `{}`: thumbnail sprite `{}` doesn't exist",
 					ship_name,
 					ship.thumbnail
 				),
-				Some(t) => *t,
+				Some(t) => t.clone(),
 			};
 
 			let size = ship.size;
-			let aspect = ct.get_sprite(sprite).aspect;
 
 			let collapse = {
 				if let Some(c) = ship.collapse {
@@ -295,11 +298,11 @@ impl crate::Build for Ship {
 						effects.push(CollapseEffectSpawner {
 							effect: e
 								.effect
-								.to_handle(build_context, ct)
+								.to_handle(build_context, ct, "")
 								.with_context(|| format!("while loading ship `{}`", ship_name))?,
 							count: e.count,
 							pos: e.pos.map(|p| {
-								Point2::new(p[0] * (size / 2.0) * aspect, p[1] * size / 2.0)
+								Point2::new(p[0] * (size / 2.0) * sprite.aspect, p[1] * size / 2.0)
 							}),
 						});
 					}
@@ -313,14 +316,14 @@ impl crate::Build for Ship {
 									effects.push(CollapseEffectSpawner {
 										effect: g
 											.effect
-											.to_handle(build_context, ct)
+											.to_handle(build_context, ct, "")
 											.with_context(|| {
 												format!("while loading ship `{}`", ship_name)
 											})?,
 										count: g.count,
 										pos: g.pos.map(|p| {
 											Point2::new(
-												p[0] * (size / 2.0) * aspect,
+												p[0] * (size / 2.0) * sprite.aspect,
 												p[1] * size / 2.0,
 											)
 										}),
@@ -357,11 +360,11 @@ impl crate::Build for Ship {
 						effects.push(DamageEffectSpawner {
 							effect: e
 								.effect
-								.to_handle(build_context, ct)
+								.to_handle(build_context, ct, "")
 								.with_context(|| format!("while loading ship `{}`", ship_name))?,
 							frequency: e.frequency,
 							pos: e.pos.map(|p| {
-								Point2::new(p[0] * (size / 2.0) * aspect, p[1] * size / 2.0)
+								Point2::new(p[0] * (size / 2.0) * sprite.aspect, p[1] * size / 2.0)
 							}),
 						});
 					}
@@ -388,7 +391,7 @@ impl crate::Build for Ship {
 					// Angle adjustment, since sprites point north
 					// and 0 degrees is east in the game
 					pos: Rotation2::new(to_radians(-90.0))
-						* Vector2::new(g.x * size * aspect / 2.0, g.y * size / 2.0),
+						* Vector2::new(g.x * size * sprite.aspect / 2.0, g.y * size / 2.0),
 				})
 			}
 
@@ -418,7 +421,7 @@ impl crate::Build for Ship {
 						// If we don't, rapier2 will compute local points pre-rotation,
 						// which will break effect placement on top of ships (i.e, collapse effects)
 						Rotation2::new(to_radians(-90.0))
-							* Point2::new(x[0] * (size / 2.0) * aspect, x[1] * size / 2.0)
+							* Point2::new(x[0] * (size / 2.0) * sprite.aspect, x[1] * size / 2.0)
 					})
 					.collect();
 
@@ -427,13 +430,15 @@ impl crate::Build for Ship {
 					.build()
 			};
 
-			ct.ships.push(Self {
-				sprite,
+			ct.ships.insert(
+				ContentIndex::new(&ship_name),
+				Arc::new(Self {
+					sprite: sprite.clone(),
 					thumbnail,
-				aspect,
 					collapse,
 					damage,
-				name: ship_name,
+					index: ContentIndex::new(&ship_name),
+					display_name: ship.name,
 					mass: ship.mass,
 					space: OutfitSpace::from(ship.space),
 					angular_drag: ship.angular_drag,
@@ -445,7 +450,7 @@ impl crate::Build for Ship {
 						.engines
 						.iter()
 						.map(|e| EnginePoint {
-						pos: Vector2::new(e.x * size * aspect / 2.0, e.y * size / 2.0),
+							pos: Vector2::new(e.x * size * sprite.aspect / 2.0, e.y * size / 2.0),
 							size: e.size,
 						})
 						.collect(),
@@ -453,7 +458,8 @@ impl crate::Build for Ship {
 					guns,
 
 					collider: CollisionDebugWrapper(collider),
-			});
+				}),
+			);
 		}
 
 		return Ok(());

crates/content/src/part/sprite.rs

@@ -1,14 +1,14 @@
 use anyhow::{anyhow, bail, Context, Result};
 use lazy_static::lazy_static;
-use std::collections::HashMap;
+use std::{collections::HashMap, sync::Arc};
 
-use crate::{handle::SpriteHandle, Content, ContentBuildContext};
+use crate::{Content, ContentBuildContext, ContentIndex};
 
 pub(crate) mod syntax {
-	use crate::{AnimSectionHandle, Content};
+	use crate::{Content, ContentIndex};
 	use anyhow::{bail, Ok, Result};
 	use serde::Deserialize;
-	use std::{collections::HashMap, path::PathBuf};
+	use std::{collections::HashMap, path::PathBuf, sync::Arc};
 
 	// Raw serde syntax structs.
 	// These are never seen by code outside this crate.
@@ -49,7 +49,7 @@ pub(crate) mod syntax {
 	/// The proper, full sprite definition
 	#[derive(Debug, Deserialize)]
 	pub struct CompleteSprite {
-		pub section: HashMap<String, SpriteSection>,
+		pub section: HashMap<ContentIndex, SpriteSection>,
 		pub start_at: SectionEdge,
 	}
 
@@ -63,14 +63,28 @@ pub(crate) mod syntax {
 	}
 
 	impl SpriteSection {
-		pub fn add_to<F>(
+		pub fn resolve_edges(
 			&self,
-			ct: &mut Content,
-			get_handle: F,
-		) -> Result<((u32, u32), super::SpriteSection)>
-		where
-			F: Fn(&str) -> Option<AnimSectionHandle>,
-		{
+			sections: &HashMap<ContentIndex, Arc<super::SpriteSection>>,
+			sec: &mut super::SpriteSection,
+		) -> Result<()> {
+			let edge_top = match &self.top {
+				Some(x) => super::resolve_edge_as_edge(sections, &x.val, sec.frame_duration)?,
+				None => super::SectionEdge::Stop,
+			};
+
+			let edge_bot = match &self.bot {
+				Some(x) => super::resolve_edge_as_edge(sections, &x.val, sec.frame_duration)?,
+				None => super::SectionEdge::Stop,
+			};
+
+			sec.edge_bot = edge_bot;
+			sec.edge_top = edge_top;
+
+			return Ok(());
+		}
+
+		pub fn add_to(&self, ct: &mut Content) -> Result<((u32, u32), super::SpriteSection)> {
 			// Make sure all frames have the same size and add them
 			// to the frame vector
 			let mut dim = None;
@@ -111,23 +125,14 @@ pub(crate) mod syntax {
 				bail!("frame duration must be positive (and therefore nonzero).")
 			}
 
-			let edge_top = match &self.top {
-				Some(x) => super::resolve_edge_as_edge(&x.val, frame_duration, &get_handle)?,
-				None => super::SectionEdge::Stop,
-			};
-
-			let edge_bot = match &self.bot {
-				Some(x) => super::resolve_edge_as_edge(&x.val, frame_duration, &get_handle)?,
-				None => super::SectionEdge::Stop,
-			};
-
 			return Ok((
 				dim,
 				super::SpriteSection {
 					frames,
 					frame_duration,
-					edge_top,
-					edge_bot,
+					// These are changed later, after all sections are built
+					edge_top: super::SectionEdge::Stop,
+					edge_bot: super::SectionEdge::Stop,
 				},
 			));
 		}
@@ -141,27 +146,8 @@ pub(crate) mod syntax {
 	}
 }
 
-/// A handle for an animation section inside a sprite
-#[derive(Debug, Copy, Clone)]
-pub enum AnimSectionHandle {
-	/// The hidden section
-	Hidden,
-
-	/// An index into this sprite's section array
-	Idx(usize),
-}
-
-impl AnimSectionHandle {
-	fn get_idx(&self) -> Option<usize> {
-		match self {
-			Self::Hidden => None,
-			Self::Idx(idx) => Some(*idx),
-		}
-	}
-}
-
 /// An edge between two animation sections
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone)]
 pub enum SectionEdge {
 	/// Stop at the last frame of this section
 	Stop,
@@ -169,7 +155,7 @@ pub enum SectionEdge {
 	/// Play the given section from the bottm
 	Bot {
 		/// The section to play
-		section: AnimSectionHandle,
+		section: Arc<SpriteSection>,
 
 		/// The length of this edge, in seconds
 		duration: f32,
@@ -178,7 +164,7 @@ pub enum SectionEdge {
 	/// Play the given section from the top
 	Top {
 		/// The section to play
-		section: AnimSectionHandle,
+		section: Arc<SpriteSection>,
 
 		/// The length of this edge, in seconds
 		duration: f32,
@@ -198,18 +184,18 @@ pub enum SectionEdge {
 }
 
 /// Where to start an animation
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone)]
 pub enum StartEdge {
 	/// Play the given section from the bottm
 	Bot {
 		/// The section to play
-		section: AnimSectionHandle,
+		section: Arc<SpriteSection>,
 	},
 
 	/// Play the given section from the top
 	Top {
 		/// The section to play
-		section: AnimSectionHandle,
+		section: Arc<SpriteSection>,
 	},
 }
 
@@ -231,80 +217,50 @@ impl Into<SectionEdge> for StartEdge {
 /// Represents a sprite that may be used in the game.
 #[derive(Debug, Clone)]
 pub struct Sprite {
-	/// The name of this sprite
-	pub name: String,
-
-	/// This sprite's handle
-	pub handle: SpriteHandle,
+	/// This object's index
+	pub index: ContentIndex,
 
 	/// Where this sprite starts playing
 	pub start_at: StartEdge,
 
 	/// This sprite's animation sections
-	sections: Vec<SpriteSection>,
-
-	/// Allows us to get sprite sections by name
-	sections_by_name: HashMap<String, AnimSectionHandle>,
+	pub sections: HashMap<ContentIndex, Arc<SpriteSection>>,
 
 	/// Aspect ratio of this sprite (width / height)
 	pub aspect: f32,
 }
 
 lazy_static! {
-	static ref HIDDEN_SECTION: SpriteSection = SpriteSection {
+	/// The universal "hidden" sprite section, available in all sprites.
+	/// A SpriteAutomaton in this section will not be drawn.
+	pub static ref HIDDEN_SPRITE_SECTION: Arc<SpriteSection> = Arc::new(SpriteSection {
 		frames: vec![0],
 		frame_duration: 0.0,
 		edge_bot: SectionEdge::Stop,
 		edge_top: SectionEdge::Stop,
-	};
+	});
 }
 
 impl Sprite {
-	/// Get an animation section from a handle
-	pub fn get_section(&self, section: AnimSectionHandle) -> &SpriteSection {
-		match section {
-			AnimSectionHandle::Hidden => &HIDDEN_SECTION,
-			AnimSectionHandle::Idx(idx) => &self.sections[idx],
-		}
-	}
-
-	/// Get an animation section by name.
-	/// Returns None for invalid names
-	pub fn get_section_by_name(&self, name: &str) -> Option<&SpriteSection> {
-		match self.sections_by_name.get(name) {
-			None => return None,
-			Some(h) => Some(self.get_section(*h)),
-		}
-	}
-
-	/// Get an animation section's handle by name.
-	/// Returns None for invalid names
-	pub fn get_section_handle_by_name(&self, name: &str) -> Option<AnimSectionHandle> {
-		match self.sections_by_name.get(name) {
-			None => return None,
-			Some(h) => Some(*h),
-		}
-	}
-
 	/// Get the index of the texture of this sprite's first frame
 	pub fn get_first_frame(&self) -> u32 {
-		match self.start_at {
-			StartEdge::Bot { section } => *self.get_section(section).frames.last().unwrap(),
-			StartEdge::Top { section } => *self.get_section(section).frames.first().unwrap(),
+		match &self.start_at {
+			StartEdge::Bot { section } => *section.frames.last().unwrap(),
+			StartEdge::Top { section } => *section.frames.first().unwrap(),
 		}
 	}
 
 	/// Get this sprite's starting section
-	pub fn get_start_section(&self) -> AnimSectionHandle {
-		match self.start_at {
-			StartEdge::Bot { section } => section,
-			StartEdge::Top { section } => section,
+	pub fn get_start_section(&self) -> Arc<SpriteSection> {
+		match &self.start_at {
+			StartEdge::Bot { section } => section.clone(),
+			StartEdge::Top { section } => section.clone(),
 		}
 	}
 
 	/// Iterate this sprite's sections
-	pub fn iter_sections(&self) -> impl Iterator<Item = &SpriteSection> {
-		self.sections.iter()
+	pub fn iter_sections(&self) -> impl Iterator<Item = &Arc<SpriteSection>> {
+		self.sections.values()
 	}
 }
 
@@ -327,66 +283,73 @@ pub struct SpriteSection {
 }
 
 /// Resolve an edge specification string as a StartEdge
-pub fn resolve_edge_as_start<F>(s: &str, get_handle: F) -> Result<super::StartEdge>
-where
-	F: Fn(&str) -> Option<AnimSectionHandle>,
-{
-	let e = resolve_edge_as_edge(s, 0.0, get_handle)
+pub fn resolve_edge_as_start(
+	sections: &HashMap<ContentIndex, Arc<SpriteSection>>,
+	edge_string: &str,
+) -> Result<super::StartEdge> {
+	let e = resolve_edge_as_edge(sections, edge_string, 0.0)
 		.with_context(|| format!("while resolving start edge"))?;
 	match e {
 		super::SectionEdge::Bot { section, .. } => Ok(super::StartEdge::Bot { section }),
 		super::SectionEdge::Top { section, .. } => Ok(super::StartEdge::Top { section }),
 		_ => {
-			bail!("bad section start specification `{}`", s);
+			bail!("bad section start specification `{}`", edge_string);
 		}
 	}
 }
 
 /// Resolve an edge specifiation string as a SectionEdge
-pub fn resolve_edge_as_edge<F>(s: &str, duration: f32, get_handle: F) -> Result<super::SectionEdge>
-where
-	F: Fn(&str) -> Option<AnimSectionHandle>,
-{
-	if s == "hidden" {
+pub fn resolve_edge_as_edge(
+	sections: &HashMap<ContentIndex, Arc<SpriteSection>>,
+	edge_string: &str,
+	duration: f32,
+) -> Result<super::SectionEdge> {
+	if edge_string == "hidden" {
 		return Ok(super::SectionEdge::Top {
-			section: crate::AnimSectionHandle::Hidden,
+			section: crate::HIDDEN_SPRITE_SECTION.clone(),
 			duration,
 		});
 	}
 
-	if s == "stop" {
+	if edge_string == "stop" {
 		return Ok(super::SectionEdge::Stop);
 	}
 
-	if s == "reverse" {
+	if edge_string == "reverse" {
 		return Ok(super::SectionEdge::Reverse { duration });
 	}
 
-	if s == "repeat" {
+	if edge_string == "repeat" {
 		return Ok(super::SectionEdge::Repeat { duration });
 	}
 
-	let (s, p) = match s.split_once(":") {
+	let (section_name, start_point) = match edge_string.split_once(":") {
 		Some(x) => x,
 		None => {
-			bail!("bad section edge specification `{}`", s);
+			bail!("bad section edge specification `{}`", edge_string);
 		}
 	};
 
-	let section = match get_handle(s) {
+	let section = match sections.get(&ContentIndex::new(section_name)) {
 		Some(s) => s,
 		None => {
-			return Err(anyhow!("bad section edge specification `{}`", s))
-				.with_context(|| format!("section `{}` doesn't exist", s));
+			return Err(anyhow!("bad section edge specification `{}`", section_name))
+				.with_context(|| format!("section `{}` doesn't exist", section_name));
 		}
 	};
 
-	match p {
-		"top" => Ok(super::SectionEdge::Top { section, duration }),
-		"bot" => Ok(super::SectionEdge::Bot { section, duration }),
+	match start_point {
+		"top" => Ok(super::SectionEdge::Top {
+			section: section.clone(),
+			duration,
+		}),
+		"bot" => Ok(super::SectionEdge::Bot {
+			section: section.clone(),
+			duration,
+		}),
 		_ => {
-			return Err(anyhow!("bad section edge specification `{}`", s))
-				.with_context(|| format!("invalid target `{}`", p));
+			return Err(anyhow!("bad section edge specification `{}`", section_name))
+				.with_context(|| format!("invalid target `{}`", start_point));
 		}
 	}
 }
@@ -419,93 +382,60 @@ impl crate::Build for Sprite {
 					let img = &ct.sprite_atlas.get_by_idx(idx);
 					let aspect = img.w / img.h;
 
-					let h = SpriteHandle {
-						index: ct.sprites.len(),
-					};
-
-					ct.sprite_index.insert(sprite_name.clone(), h);
-
-					ct.sprites.push(Self {
-						name: sprite_name,
-						start_at: StartEdge::Top {
-							section: AnimSectionHandle::Idx(0),
-						},
-						sections: vec![SpriteSection {
+					let section = Arc::new(SpriteSection {
 						frames: vec![img.idx.into()],
 						// We implement unanimated sprites with a very fast framerate
 						// and STOP endpoints.
 						frame_duration: 0.01,
 						edge_top: SectionEdge::Stop,
 						edge_bot: SectionEdge::Stop,
-						}],
-						sections_by_name: HashMap::new(),
-						handle: h,
+					});
+
+					let sprite = Arc::new(Self {
+						index: ContentIndex::new(&sprite_name),
+						start_at: StartEdge::Top {
+							section: section.clone(),
+						},
+						sections: {
+							let mut h = HashMap::new();
+							h.insert(ContentIndex::new("anim"), section);
+							h
+						},
 						aspect,
 					});
+					ct.sprites.insert(sprite.index.clone(), sprite);
 				}
 				syntax::Sprite::OneSection(s) => {
-					let sprite_handle = SpriteHandle {
-						index: ct.sprites.len(),
-					};
-					ct.sprite_index.insert(sprite_name.clone(), sprite_handle);
-
 					let (dim, section) = s
-						.add_to(ct, |s| {
-							if s == "anim" {
-								Some(AnimSectionHandle::Idx(0))
-							} else {
-								None
-							}
-						})
+						.add_to(ct)
 						.with_context(|| format!("while parsing sprite `{}`", sprite_name))?;
 					let aspect = dim.0 as f32 / dim.1 as f32;
 
-					let mut sections = Vec::new();
-					sections.push(section);
+					let section = Arc::new(section);
 
-					ct.sprites.push(Self {
-						name: sprite_name,
-						sections,
+					let sprite = Arc::new(Self {
+						index: ContentIndex::new(&sprite_name),
 						start_at: StartEdge::Top {
-							section: AnimSectionHandle::Idx(0),
+							section: section.clone(),
 						},
-						sections_by_name: {
+						sections: {
 							let mut h = HashMap::new();
-							h.insert("anim".to_string(), AnimSectionHandle::Idx(0));
+							h.insert(ContentIndex::new("anim"), section.clone());
 							h
 						},
-						handle: sprite_handle,
 						aspect,
 					});
+					ct.sprites.insert(sprite.index.clone(), sprite);
 				}
 				syntax::Sprite::Complete(s) => {
-					let mut section_names = HashMap::new();
-					for (name, _) in &s.section {
-						section_names
-							.insert(name.to_owned(), AnimSectionHandle::Idx(section_names.len()));
-					}
+					let mut sections = HashMap::new();
 
-					let sprite_handle = SpriteHandle {
-						index: ct.sprites.len(),
-					};
-					ct.sprite_index.insert(sprite_name.clone(), sprite_handle);
-
-					let start_at =
-						resolve_edge_as_start(&s.start_at.val, |x| section_names.get(x).copied())
-							.with_context(|| format!("while loading sprite `{}`", sprite_name))?;
-
-					let mut sections = Vec::with_capacity(section_names.len());
 					let mut dim = None;
 
-					// Make sure we add sections in order
-					let mut names = section_names.iter().collect::<Vec<_>>();
-					names.sort_by(|a, b| (a.1).get_idx().unwrap().cmp(&(b.1).get_idx().unwrap()));
-
-					for (k, _) in names {
-						let v = s.section.get(k).unwrap();
-						let (d, s) = v
-							.add_to(ct, |x| section_names.get(x).copied())
-							.with_context(|| format!("while parsing section `{}`", k))
+					for (name, sec) in &s.section {
+						let (d, s) = sec
+							.add_to(ct)
+							.with_context(|| format!("while parsing section `{}`", name))
 							.with_context(|| format!("while parsing sprite `{}`", sprite_name))?;
 
 						// Make sure all dimensions are the same
@@ -515,23 +445,35 @@ impl crate::Build for Sprite {
 							bail!(
 								"could not load sprite `{}`, image sizes in section `{}` are different",
 								sprite_name,
-								k
+								name
 							);
 						}
 
-						sections.push(s);
+						sections.insert(name.clone(), Arc::new(s));
 					}
+
+					// We need to clone this here, thanks to self-reference.
+					let tmp_sections = sections.clone();
+
+					for (name, sec) in &s.section {
+						let parsed_sec = sections.get_mut(name).unwrap();
+						let parsed_sec = Arc::make_mut(parsed_sec);
+						sec.resolve_edges(&tmp_sections, parsed_sec)?;
+					}
+
 					let dim = dim.unwrap();
 					let aspect = dim.0 as f32 / dim.1 as f32;
 
-					ct.sprites.push(Self {
-						name: sprite_name,
-						sections,
+					let start_at = resolve_edge_as_start(&sections, &s.start_at.val)
+						.with_context(|| format!("while loading sprite `{}`", sprite_name))?;
+
+					let sprite = Arc::new(Self {
+						index: ContentIndex::new(&sprite_name),
 						start_at,
-						handle: sprite_handle,
-						sections_by_name: section_names,
+						sections,
 						aspect,
 					});
+					ct.sprites.insert(sprite.index.clone(), sprite);
 				}
 			}
 		}

crates/content/src/part/system.rs

@@ -1,27 +1,30 @@
 use anyhow::{anyhow, bail, Context, Result};
 use galactica_util::to_radians;
 use nalgebra::{Point2, Point3};
-use std::collections::{HashMap, HashSet};
-
-use crate::{
-	handle::SpriteHandle, util::Polar, Content, ContentBuildContext, SystemHandle,
-	SystemObjectHandle,
+use std::{
+	collections::{HashMap, HashSet},
+	sync::Arc,
 };
 
+use crate::{util::Polar, Content, ContentBuildContext, ContentIndex, Sprite};
+
 pub(crate) mod syntax {
 	use serde::Deserialize;
 	use std::collections::HashMap;
+
+	use crate::ContentIndex;
 	// Raw serde syntax structs.
 	// These are never seen by code outside this crate.
 
 	#[derive(Debug, Deserialize)]
 	pub struct System {
-		pub object: HashMap<String, Object>,
+		pub name: String,
+		pub object: HashMap<ContentIndex, Object>,
 	}
 
 	#[derive(Debug, Deserialize)]
 	pub struct Object {
-		pub sprite: String,
+		pub sprite: ContentIndex,
 		pub position: Position,
 
 		pub size: f32,
@@ -31,7 +34,7 @@ pub(crate) mod syntax {
 		pub landable: Option<bool>,
 		pub name: Option<String>,
 		pub desc: Option<String>,
-		pub image: Option<String>,
+		pub image: Option<ContentIndex>,
 	}
 
 	#[derive(Debug, Deserialize)]
@@ -52,14 +55,14 @@ pub(crate) mod syntax {
 	#[derive(Debug, Deserialize)]
 	#[serde(untagged)]
 	pub enum CoordinatesTwo {
-		Label(String),
+		Label(ContentIndex),
 		Coords([f32; 2]),
 	}
 
 	impl ToString for CoordinatesTwo {
 		fn to_string(&self) -> String {
 			match self {
-				Self::Label(s) => s.to_owned(),
+				Self::Label(s) => s.to_string(),
 				Self::Coords(v) => format!("{:?}", v),
 			}
 		}
@@ -68,14 +71,14 @@ pub(crate) mod syntax {
 	#[derive(Debug, Deserialize)]
 	#[serde(untagged)]
 	pub enum CoordinatesThree {
-		Label(String),
+		Label(ContentIndex),
 		Coords([f32; 3]),
 	}
 
 	impl ToString for CoordinatesThree {
 		fn to_string(&self) -> String {
 			match self {
-				Self::Label(s) => s.to_owned(),
+				Self::Label(s) => s.to_string(),
 				Self::Coords(v) => format!("{:?}", v),
 			}
 		}
@@ -88,14 +91,14 @@ pub(crate) mod syntax {
 /// Represents a star system
 #[derive(Debug, Clone)]
 pub struct System {
-	/// This star system's name
-	pub name: String,
+	/// This object's name
+	pub display_name: String,
 
-	/// This star system's handle
-	pub handle: SystemHandle,
+	/// This object's index
+	pub index: ContentIndex,
 
 	/// Objects in this system
-	pub objects: Vec<SystemObject>,
+	pub objects: HashMap<ContentIndex, Arc<SystemObject>>,
 }
 
 /// Represents an orbiting body in a star system
@@ -104,11 +107,14 @@ pub struct System {
 /// System objects to not interact with the physics engine.
 #[derive(Debug, Clone)]
 pub struct SystemObject {
-	/// This object's sprite
-	pub sprite: SpriteHandle,
+	/// This object's name
+	pub display_name: Option<String>,
 
-	/// This object's handle
-	pub handle: SystemObjectHandle,
+	/// This object's index
+	pub index: ContentIndex,
+
+	/// This object's sprite
+	pub sprite: Arc<Sprite>,
 
 	/// This object's size.
 	/// Measured as height in game units.
@@ -126,24 +132,18 @@ pub struct SystemObject {
 	/// If true, ships may land on this object
 	pub landable: bool,
 
-	/// The pretty display name of this object
-	pub name: Option<String>,
-
-	/// The system-unique label of this object
-	pub label: String,
-
 	/// The description of this object (shown on landed ui)
 	pub desc: Option<String>,
 
 	/// This object's image (shown on landed ui)
-	pub image: Option<SpriteHandle>,
+	pub image: Option<Arc<Sprite>>,
 }
 
 /// Helper function for resolve_position, never called on its own.
 fn resolve_coordinates(
-	objects: &HashMap<String, syntax::Object>,
+	objects: &HashMap<ContentIndex, syntax::Object>,
 	cor: &syntax::CoordinatesThree,
-	mut cycle_detector: HashSet<String>,
+	mut cycle_detector: HashSet<ContentIndex>,
 ) -> Result<Point3<f32>> {
 	match cor {
 		syntax::CoordinatesThree::Coords(c) => Ok((*c).into()),
@@ -160,7 +160,7 @@ fn resolve_coordinates(
 					})
 				);
 			}
-			cycle_detector.insert(l.to_owned());
+			cycle_detector.insert(l.clone());
 
 			let p = match objects.get(l) {
 				Some(p) => p,
@@ -174,9 +174,9 @@ fn resolve_coordinates(
 
 /// Given an object, resolve its position as a Point3.
 fn resolve_position(
-	objects: &HashMap<String, syntax::Object>,
+	objects: &HashMap<ContentIndex, syntax::Object>,
 	obj: &syntax::Object,
-	cycle_detector: HashSet<String>,
+	cycle_detector: HashSet<ContentIndex>,
 ) -> Result<Point3<f32>> {
 	match &obj.position {
 		syntax::Position::Cartesian(c) => Ok(resolve_coordinates(objects, &c, cycle_detector)?),
@@ -208,33 +208,29 @@ impl crate::Build for System {
 		content: &mut Content,
 	) -> Result<()> {
 		for (system_name, system) in system {
-			let mut objects = Vec::new();
+			let mut objects = HashMap::new();
 
-			let system_handle = SystemHandle {
-				index: content.systems.len(),
-			};
-
-			for (label, obj) in &system.object {
+			for (index, obj) in &system.object {
 				let mut cycle_detector = HashSet::new();
-				cycle_detector.insert(label.clone());
+				cycle_detector.insert(index.clone());
 
-				let sprite_handle = match content.sprite_index.get(&obj.sprite) {
+				let sprite = match content.sprites.get(&obj.sprite) {
 					None => bail!(
 						"In system `{}`: sprite `{}` doesn't exist",
 						system_name,
 						obj.sprite
 					),
-					Some(t) => *t,
+					Some(t) => t.clone(),
 				};
 
-				let image_handle = match &obj.image {
-					Some(x) => match content.sprite_index.get(x) {
+				let image = match &obj.image {
+					Some(x) => match content.sprites.get(x) {
 						None => bail!(
 							"In system `{}`: sprite `{}` doesn't exist",
 							system_name,
 							obj.sprite
 						),
-						Some(t) => Some(*t),
+						Some(t) => Some(t.clone()),
 					},
 					None => None,
 				};
@@ -242,7 +238,7 @@ impl crate::Build for System {
 				if obj.landable.unwrap_or(false) {
 					if obj.name.is_none() {
 						return Err(anyhow!("if an object is landable, it must have a name"))
-							.with_context(|| format!("in object labeled `{}`", label))
+							.with_context(|| format!("in object labeled `{}`", index))
 							.with_context(|| format!("in system `{}`", system_name));
 					}
 
@@ -250,57 +246,47 @@ impl crate::Build for System {
 						return Err(anyhow!(
 							"if an object is landable, it must have a description"
 						))
-						.with_context(|| format!("in object labeled `{}`", label))
+						.with_context(|| format!("in object labeled `{}`", index))
 						.with_context(|| format!("in system `{}`", system_name));
 					}
 
 					if obj.image.is_none() {
 						return Err(anyhow!("if an object is landable, it must have an image"))
-							.with_context(|| format!("in object labeled `{}`", label))
+							.with_context(|| format!("in object labeled `{}`", index))
 							.with_context(|| format!("in system `{}`", system_name));
 					}
 				}
 
-				objects.push(SystemObject {
-					label: label.clone(),
-					sprite: sprite_handle,
-					image: image_handle,
+				objects.insert(
+					index.clone(),
+					Arc::new(SystemObject {
+						index: index.clone(),
+						sprite,
+						image,
 						pos: resolve_position(&system.object, &obj, cycle_detector)
-						.with_context(|| format!("in object {:#?}", label))?,
+							.with_context(|| format!("in object {:#?}", index))?,
 						size: obj.size,
 						angle: to_radians(obj.angle.unwrap_or(0.0)),
-					handle: SystemObjectHandle {
-						system_handle,
-						body_index: 0,
-					},
 						landable: obj.landable.unwrap_or(false),
-					name: obj.name.as_ref().map(|x| x.clone()),
+						display_name: obj.name.as_ref().map(|x| x.clone()),
 						// TODO: better linebreaks, handle double spaces
 						// Tabs
 						desc: obj
 							.desc
 							.as_ref()
 							.map(|x| x.replace("\n", " ").replace("<br>", "\n")),
-				});
+					}),
+				);
 			}
 
-			// Sort by z-distance. This is important, since these are
-			// rendered in this order. We need far objects to be behind
-			// near objects!
-			objects.sort_by(|a, b| b.pos.z.total_cmp(&a.pos.z));
-
-			// Update object handles
-			let mut i = 0;
-			for o in &mut objects {
-				o.handle.body_index = i;
-				i += 1;
-			}
-
-			content.systems.push(Self {
-				handle: system_handle,
-				name: system_name,
+			content.systems.insert(
+				ContentIndex::new(&system_name),
+				Arc::new(Self {
+					index: ContentIndex::new(&system_name),
+					display_name: system.name,
 					objects,
-			});
+				}),
+			);
 		}
 
 		return Ok(());

crates/content/src/spriteautomaton.rs

@@ -1,4 +1,5 @@
-use crate::{AnimSectionHandle, Content, SectionEdge, SpriteHandle, StartEdge};
+use crate::{SectionEdge, Sprite, SpriteSection, StartEdge};
+use std::sync::Arc;
 
 /// A single frame's state
 #[derive(Debug, Clone)]
@@ -43,11 +44,11 @@ enum AnimDirection {
 #[derive(Debug, Clone)]
 pub struct SpriteAutomaton {
 	/// The sprite we're animating
-	sprite: SpriteHandle,
+	sprite: Arc<Sprite>,
 
 	/// Which animation section we're on
 	/// This MUST be a section from this Automaton's sprite
-	current_section: AnimSectionHandle,
+	current_section: Arc<SpriteSection>,
 
 	/// Which frame we're on
 	current_frame: usize,
@@ -75,39 +76,35 @@ pub struct SpriteAutomaton {
 
 impl SpriteAutomaton {
 	/// Create a new AnimAutomaton
-	pub fn new(ct: &Content, sprite_handle: SpriteHandle) -> Self {
-		let sprite = ct.get_sprite(sprite_handle);
-
-		let (current_section, texture, current_direction) = match sprite.start_at {
+	pub fn new(sprite: Arc<Sprite>) -> Self {
+		let (current_section, texture, current_direction) = {
+			match &sprite.start_at {
 				StartEdge::Top { section } => (
 					section,
-				*sprite.get_section(section).frames.first().unwrap(),
+					*section.frames.first().unwrap(),
 					AnimDirection::Down,
 				),
-			StartEdge::Bot { section } => (
-				section,
-				*sprite.get_section(section).frames.last().unwrap(),
-				AnimDirection::Up,
-			),
+				StartEdge::Bot { section } => {
+					(section, *section.frames.last().unwrap(), AnimDirection::Up)
+				}
+			}
 		};
 
-		let sec = sprite.get_section(current_section);
-
 		Self {
-			sprite: sprite.handle,
+			sprite: sprite.clone(),
 			current_frame: 0,
 
 			current_edge_progress: match current_direction {
 				AnimDirection::Down => 0.0,
-				AnimDirection::Up => sec.frame_duration,
+				AnimDirection::Up => current_section.frame_duration,
 				AnimDirection::Stop => unreachable!("how'd you get here?"),
 			},
 
-			current_edge_duration: sec.frame_duration,
+			current_edge_duration: current_section.frame_duration,
 			next_edge_override: None,
 
 			current_direction,
-			current_section,
+			current_section: current_section.clone(),
 			last_texture: texture,
 			next_texture: texture,
 		}
@@ -119,14 +116,11 @@ impl SpriteAutomaton {
 	}
 
 	/// Force a transition to the given section right now
-	pub fn jump_to(&mut self, ct: &Content, start: SectionEdge) {
-		self.take_edge(ct, start);
+	pub fn jump_to(&mut self, start: &SectionEdge) {
+		self.take_edge(start);
 	}
 
-	fn take_edge(&mut self, ct: &Content, e: SectionEdge) {
-		let sprite = ct.get_sprite(self.sprite);
-		let current_section = sprite.get_section(self.current_section);
-
+	fn take_edge(&mut self, e: &SectionEdge) {
 		let last = match self.current_direction {
 			AnimDirection::Stop => self.next_texture,
 			AnimDirection::Down => self.next_texture,
@@ -141,7 +135,7 @@ impl SpriteAutomaton {
 						self.current_frame = 0;
 					}
 					AnimDirection::Down => {
-						self.current_frame = current_section.frames.len() - 1;
+						self.current_frame = self.current_section.frames.len() - 1;
 					}
 				}
 
@@ -149,29 +143,28 @@ impl SpriteAutomaton {
 				self.current_direction = AnimDirection::Stop;
 			}
 			SectionEdge::Top { section, duration } => {
-				self.current_section = section;
-				self.current_edge_duration = duration;
+				self.current_section = section.clone();
+				self.current_edge_duration = *duration;
 				self.current_frame = 0;
 				self.current_direction = AnimDirection::Down;
 			}
 			SectionEdge::Bot { section, duration } => {
-				let s = sprite.get_section(section);
-				self.current_section = section;
-				self.current_frame = s.frames.len() - 1;
-				self.current_edge_duration = duration;
+				self.current_section = section.clone();
+				self.current_frame = section.frames.len() - 1;
+				self.current_edge_duration = *duration;
 				self.current_direction = AnimDirection::Up;
 			}
 			SectionEdge::Repeat { duration } => {
 				match self.current_direction {
 					AnimDirection::Stop => {}
 					AnimDirection::Up => {
-						self.current_frame = current_section.frames.len() - 1;
+						self.current_frame = self.current_section.frames.len() - 1;
 					}
 					AnimDirection::Down => {
 						self.current_frame = 0;
 					}
 				}
-				self.current_edge_duration = duration;
+				self.current_edge_duration = *duration;
 			}
 			SectionEdge::Reverse { duration } => {
 				match self.current_direction {
@@ -180,7 +173,7 @@ impl SpriteAutomaton {
 						// Jump to SECOND frame, since we've already shown the
 						// first during the fade transition
 						self.current_frame = {
-							if current_section.frames.len() == 1 {
+							if self.current_section.frames.len() == 1 {
 								0
 							} else {
 								1
@@ -190,45 +183,39 @@ impl SpriteAutomaton {
 					}
 					AnimDirection::Down => {
 						self.current_frame = {
-							if current_section.frames.len() == 1 {
+							if self.current_section.frames.len() == 1 {
 								0
 							} else {
-								current_section.frames.len() - 2
+								self.current_section.frames.len() - 2
 							}
 						};
 						self.current_direction = AnimDirection::Up;
 					}
 				}
-				self.current_edge_duration = duration;
+				self.current_edge_duration = *duration;
 			}
 		}
 
 		match self.current_direction {
 			AnimDirection::Stop => {
-				let current_section = sprite.get_section(self.current_section);
-				self.next_texture = current_section.frames[self.current_frame];
-				self.last_texture = current_section.frames[self.current_frame];
+				self.next_texture = self.current_section.frames[self.current_frame];
+				self.last_texture = self.current_section.frames[self.current_frame];
 			}
 			AnimDirection::Down => {
-				let current_section = sprite.get_section(self.current_section);
 				self.last_texture = last;
-				self.next_texture = current_section.frames[self.current_frame];
+				self.next_texture = self.current_section.frames[self.current_frame];
 				self.current_edge_progress = 0.0;
 			}
 			AnimDirection::Up => {
-				let current_section = sprite.get_section(self.current_section);
 				self.next_texture = last;
-				self.last_texture = current_section.frames[self.current_frame];
+				self.last_texture = self.current_section.frames[self.current_frame];
 				self.current_edge_progress = self.current_edge_duration;
 			}
 		}
 	}
 
 	/// Step this animation by `t` seconds
-	pub fn step(&mut self, ct: &Content, t: f32) {
-		let sprite = ct.get_sprite(self.sprite);
-		let current_section = sprite.get_section(self.current_section);
-
+	pub fn step(&mut self, t: f32) {
 		// Current_fade and current_frame keep track of where we are in the current section.
 		// current_frame indexes this section frames. When it exceeds the number of frames
 		// or falls below zero (when moving in reverse), we switch to the next section.
@@ -240,7 +227,7 @@ impl SpriteAutomaton {
 		// Note that frame_duration may be zero!
 		// This is only possible in the hidden texture, since
 		// user-provided sections are always checked to be positive.
-		assert!(current_section.frame_duration >= 0.0);
+		assert!(self.current_section.frame_duration >= 0.0);
 
 		match self.current_direction {
 			AnimDirection::Stop => {
@@ -248,7 +235,7 @@ impl SpriteAutomaton {
 				// we should transition right away.
 
 				if let Some(e) = self.next_edge_override.take() {
-					self.take_edge(ct, e);
+					self.take_edge(&e);
 				}
 
 				return;
@@ -259,21 +246,21 @@ impl SpriteAutomaton {
 
 				// We're stepping foward and finished this frame
 				if self.current_edge_progress > self.current_edge_duration {
-					if self.current_frame < current_section.frames.len() - 1 {
+					if self.current_frame < self.current_section.frames.len() - 1 {
 						self.current_frame += 1;
 						self.last_texture = self.next_texture;
-						self.next_texture = current_section.frames[self.current_frame];
+						self.next_texture = self.current_section.frames[self.current_frame];
 						self.current_edge_progress = 0.0;
-						self.current_edge_duration = current_section.frame_duration;
+						self.current_edge_duration = self.current_section.frame_duration;
 					} else {
 						let e = {
 							if self.next_edge_override.is_some() {
 								self.next_edge_override.take().unwrap()
 							} else {
-								current_section.edge_bot.clone()
+								self.current_section.edge_bot.clone()
 							}
 						};
-						self.take_edge(ct, e);
+						self.take_edge(&e);
 					}
 				}
 			}
@@ -286,18 +273,18 @@ impl SpriteAutomaton {
 					if self.current_frame > 0 {
 						self.current_frame -= 1;
 						self.next_texture = self.last_texture;
-						self.last_texture = current_section.frames[self.current_frame];
-						self.current_edge_progress = current_section.frame_duration;
-						self.current_edge_duration = current_section.frame_duration;
+						self.last_texture = self.current_section.frames[self.current_frame];
+						self.current_edge_progress = self.current_section.frame_duration;
+						self.current_edge_duration = self.current_section.frame_duration;
 					} else {
 						let e = {
 							if self.next_edge_override.is_some() {
 								self.next_edge_override.take().unwrap()
 							} else {
-								current_section.edge_top.clone()
+								self.current_section.edge_top.clone()
 							}
 						};
-						self.take_edge(ct, e);
+						self.take_edge(&e);
 					}
 				}
 			}
@@ -314,7 +301,7 @@ impl SpriteAutomaton {
 	}
 
 	/// Get the sprite this automaton is using
-	pub fn get_sprite(&self) -> SpriteHandle {
-		self.sprite
+	pub fn get_sprite(&self) -> Arc<Sprite> {
+		self.sprite.clone()
 	}
 }

crates/galactica/src/game.rs

@@ -1,4 +1,4 @@
-use galactica_content::{Content, FactionHandle, OutfitHandle, ShipHandle, SystemHandle};
+use galactica_content::{Content, ContentIndex};
 use galactica_playeragent::PlayerAgent;
 use galactica_system::data::ShipPersonality;
 use galactica_system::phys::{PhysImage, PhysSim, PhysSimShipHandle, PhysStepResources};
@@ -24,82 +24,101 @@ unsafe impl<'a> Send for Game {}
 impl<'a> Game {
 	pub fn make_player(&mut self) -> PhysSimShipHandle {
 		let player = self.phys_sim.add_ship(
-			&self.ct,
-			ShipHandle { index: 0 },
-			FactionHandle { index: 0 },
+			self.ct
+				.ships
+				.get(&ContentIndex::new("gypsum"))
+				.unwrap()
+				.clone(),
+			self.ct
+				.factions
+				.get(&ContentIndex::new("player"))
+				.unwrap()
+				.clone(),
 			ShipPersonality::Player,
 			Point2::new(0.0, 4000.0),
 		);
 
 		let s = self.phys_sim.get_ship_mut(&player).unwrap();
-		s.add_outfits(
-			&self.ct,
-			[
-				OutfitHandle { index: 0 },
-				OutfitHandle { index: 1 },
-				OutfitHandle { index: 2 },
-			],
-		);
+		s.add_outfits([
+			self.ct
+				.outfits
+				.get(&ContentIndex::new("plasma engines"))
+				.unwrap()
+				.clone(),
+			self.ct
+				.outfits
+				.get(&ContentIndex::new("shield generator"))
+				.unwrap()
+				.clone(),
+			self.ct
+				.outfits
+				.get(&ContentIndex::new("blaster"))
+				.unwrap()
+				.clone(),
+			self.ct
+				.outfits
+				.get(&ContentIndex::new("blaster"))
+				.unwrap()
+				.clone(),
+		]);
 
 		return player;
 	}
 
 	pub fn new(ct: Arc<Content>) -> Self {
-		let mut phys_sim = PhysSim::new(&ct, SystemHandle { index: 0 });
+		let mut phys_sim = PhysSim::new();
 
 		let a = phys_sim.add_ship(
-			&ct,
-			ShipHandle { index: 0 },
-			FactionHandle { index: 1 },
-			ShipPersonality::Point,
-			Point2::new(1000.0, 0.0),
-		);
-
-		let s = phys_sim.get_ship_mut(&a).unwrap();
-		s.add_outfits(
-			&ct,
-			[
-				OutfitHandle { index: 0 },
-				OutfitHandle { index: 1 },
-				OutfitHandle { index: 2 },
-			],
-		);
-
-		let a = phys_sim.add_ship(
-			&ct,
-			ShipHandle { index: 0 },
-			FactionHandle { index: 1 },
+			ct.ships.get(&ContentIndex::new("gypsum")).unwrap().clone(),
+			ct.factions
+				.get(&ContentIndex::new("enemy"))
+				.unwrap()
+				.clone(),
 			ShipPersonality::Point,
 			Point2::new(1000.0, 4000.0),
 		);
 
 		let s = phys_sim.get_ship_mut(&a).unwrap();
-		s.add_outfits(
-			&ct,
-			[
-				OutfitHandle { index: 0 },
-				OutfitHandle { index: 1 },
-				OutfitHandle { index: 2 },
-			],
-		);
+		s.add_outfits([
+			ct.outfits
+				.get(&ContentIndex::new("plasma engines"))
+				.unwrap()
+				.clone(),
+			ct.outfits
+				.get(&ContentIndex::new("shield generator"))
+				.unwrap()
+				.clone(),
+			ct.outfits
+				.get(&ContentIndex::new("blaster"))
+				.unwrap()
+				.clone(),
+		]);
 
 		let a = phys_sim.add_ship(
-			&ct,
-			ShipHandle { index: 0 },
-			FactionHandle { index: 0 },
+			ct.ships.get(&ContentIndex::new("gypsum")).unwrap().clone(),
+			ct.factions
+				.get(&ContentIndex::new("player"))
+				.unwrap()
+				.clone(),
 			ShipPersonality::Dummy,
 			Point2::new(200.0, 2000.0),
 		);
 
 		let s = phys_sim.get_ship_mut(&a).unwrap();
-		s.add_outfits(
-			&ct,
-			[
-				OutfitHandle { index: 0 },
-				OutfitHandle { index: 1 },
-				OutfitHandle { index: 2 },
-			],
-		);
+		s.add_outfits([
+			ct.outfits
+				.get(&ContentIndex::new("plasma engines"))
+				.unwrap()
+				.clone(),
+			ct.outfits
+				.get(&ContentIndex::new("shield generator"))
+				.unwrap()
+				.clone(),
+			ct.outfits
+				.get(&ContentIndex::new("blaster"))
+				.unwrap()
+				.clone(),
+		]);
 
 		Game {
 			ct,
@@ -112,7 +131,7 @@ impl<'a> Game {
 	}
 
 	pub fn update_player_controls(&mut self, player: &mut PlayerAgent) {
-		self.phys_sim.update_player_controls(&self.ct, player)
+		self.phys_sim.update_player_controls(player)
 	}
 
 	pub fn step(&mut self, phys_img: &PhysImage) {

crates/galactica/src/main.rs

@@ -2,7 +2,7 @@ mod game;
 
 use anyhow::{bail, Result};
 use clap::Parser;
-use galactica_content::{Content, SystemHandle};
+use galactica_content::Content;
 use galactica_playeragent::{PlayerAgent, PlayerStatus};
 use galactica_render::RenderInput;
 use galactica_system::{
@@ -128,7 +128,7 @@ fn try_main() -> Result<()> {
 	let mut game = game::Game::new(content.clone());
 	let p = game.make_player();
 
-	let mut player = Arc::new(PlayerAgent::new(p.0));
+	let mut player = Arc::new(PlayerAgent::new(&content, p.0));
 	Arc::get_mut(&mut player).unwrap().set_camera_aspect(
 		gpu.window().inner_size().width as f32 / gpu.window().inner_size().height as f32,
 	);
@@ -147,7 +147,8 @@ fn try_main() -> Result<()> {
 					phys_img: phys_img.clone(),
 					player: player.clone(),
 					time_since_last_run: last_run.elapsed().as_secs_f32(),
-					current_system: SystemHandle { index: 0 },
+					// TODO: this is a hack for testing.
+					current_system: content.systems.values().next().unwrap().clone(),
 					timing: game.get_timing().clone(),
 				};
 				last_run = Instant::now();
@@ -178,8 +179,7 @@ fn try_main() -> Result<()> {
 								| ShipState::Flying { .. } => Some(*o.rigidbody.translation()),
 
 								ShipState::Landed { target } => {
-									let b = content.get_system_object(*target);
-									Some(Vector2::new(b.pos.x, b.pos.y))
+									Some(Vector2::new(target.pos.x, target.pos.y))
 								}
 
 								ShipState::Dead => None,

crates/playeragent/src/playeragent.rs

@@ -1,25 +1,27 @@
-use galactica_content::{Content, SystemHandle, SystemObjectHandle};
+use std::sync::Arc;
+
+use galactica_content::{Content, ContentIndex, SystemObject};
 use rapier2d::geometry::ColliderHandle;
 
 use crate::{camera::Camera, inputstatus::InputStatus, PlayerStatus};
 
 /// What the player has selected
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone)]
 pub enum PlayerSelection {
 	/// We have nothing selected
 	None,
 
 	/// We have a system body selected
-	OrbitingBody(SystemObjectHandle),
+	OrbitingBody(Arc<SystemObject>),
 
 	/// We have a ship selected
 	Ship(ColliderHandle),
 }
 
 impl PlayerSelection {
-	pub fn get_planet(&self) -> Option<SystemObjectHandle> {
+	pub fn get_planet(&self) -> Option<&Arc<SystemObject>> {
 		match self {
-			Self::OrbitingBody(h) => Some(*h),
+			Self::OrbitingBody(h) => Some(h),
 			_ => None,
 		}
 	}
@@ -41,15 +43,21 @@ pub struct PlayerAgent {
 }
 
 impl PlayerAgent {
-	pub fn new(ship: ColliderHandle) -> Self {
+	pub fn new(ct: &Content, ship: ColliderHandle) -> Self {
 		Self {
 			input: InputStatus::new(),
 			camera: Camera::new(),
 			ship: Some(ship),
-			selection: PlayerSelection::OrbitingBody(SystemObjectHandle {
-				system_handle: SystemHandle { index: 0 },
-				body_index: 1,
-			}),
+			selection: PlayerSelection::OrbitingBody(
+				ct.systems
+					.values()
+					.next()
+					.unwrap()
+					.objects
+					.get(&ContentIndex::new("earth"))
+					.unwrap()
+					.clone(),
+			),
 		}
 	}
 
@@ -60,7 +68,7 @@ impl PlayerAgent {
 	pub fn step(&mut self, ct: &Content, status: PlayerStatus) {
 		if self.input.get_v_scroll() != 0.0 {
 			self.camera.zoom = (self.camera.zoom + self.input.get_v_scroll())
-				.clamp(ct.get_config().zoom_min, ct.get_config().zoom_max);
+				.clamp(ct.config.zoom_min, ct.config.zoom_max);
 		}
 
 		if status.pos.is_some() {

crates/render/src/gpustate.rs

@@ -120,21 +120,20 @@ impl GPUState {
 			glyphon::fontdb::Database::new(),
 		);
 
-		let conf = ct.get_config();
-		for font in &conf.font_files {
+		for font in &ct.config.font_files {
 			text_font_system.db_mut().load_font_file(font)?;
 		}
 
 		// TODO: nice error if no family with this name is found
 		text_font_system
 			.db_mut()
-			.set_sans_serif_family(conf.font_sans.clone());
+			.set_sans_serif_family(ct.config.font_sans.clone());
 		text_font_system
 			.db_mut()
-			.set_serif_family(conf.font_serif.clone());
+			.set_serif_family(ct.config.font_serif.clone());
 		text_font_system
 			.db_mut()
-			.set_monospace_family(conf.font_mono.clone());
+			.set_monospace_family(ct.config.font_mono.clone());
 		//text_font_system
 		//	.db_mut()
 		//	.set_cursive_family(conf.font_cursive.clone());
@@ -287,16 +286,16 @@ impl GPUState {
 				camera_position_x: input.camera_pos.x,
 				camera_position_y: input.camera_pos.y,
 				camera_zoom: input.camera_zoom,
-				camera_zoom_min: input.ct.get_config().zoom_min,
-				camera_zoom_max: input.ct.get_config().zoom_max,
+				camera_zoom_min: input.ct.config.zoom_min,
+				camera_zoom_max: input.ct.config.zoom_max,
 				window_size_w: self.state.window_size.width as f32,
 				window_size_h: self.state.window_size.height as f32,
 				window_scale: self.state.window.scale_factor() as f32,
 				window_aspect: self.state.window_aspect,
-				starfield_sprite: input.ct.get_config().starfield_texture.into(),
-				starfield_tile_size: input.ct.get_config().starfield_size,
-				starfield_size_min: input.ct.get_config().starfield_min_size,
-				starfield_size_max: input.ct.get_config().starfield_max_size,
+				starfield_sprite: input.ct.config.starfield_texture.into(),
+				starfield_tile_size: input.ct.config.starfield_size,
+				starfield_size_min: input.ct.config.starfield_min_size,
+				starfield_size_max: input.ct.config.starfield_max_size,
 			}]),
 		);
 
@@ -468,7 +467,7 @@ impl GPUState {
 					ship_pos = Point3::new(pos.x, pos.y, 1.0);
 					let ship_rot = r.rotation();
 					ship_ang = ship_rot.angle();
-					ship_cnt = input.ct.get_ship(s.ship.get_data().get_content());
+					ship_cnt = s.ship.get_data().get_content();
 				}
 
 				ShipState::UnLanding { current_z, .. } | ShipState::Landing { current_z, .. } => {
@@ -477,7 +476,7 @@ impl GPUState {
 					ship_pos = Point3::new(pos.x, pos.y, *current_z);
 					let ship_rot = r.rotation();
 					ship_ang = ship_rot.angle();
-					ship_cnt = input.ct.get_ship(s.ship.get_data().get_content());
+					ship_cnt = s.ship.get_data().get_content();
 				}
 			}
 
@@ -492,8 +491,7 @@ impl GPUState {
 			// This is in game units.
 			//
 			// We take the maximum to account for rotated sprites.
-			let m =
-				(ship_cnt.size / ship_pos.z) * input.ct.get_sprite(ship_cnt.sprite).aspect.max(1.0);
+			let m = (ship_cnt.size / ship_pos.z) * ship_cnt.sprite.aspect.max(1.0);
 
 			// Don't draw sprites that are off the screen
 			if pos.x < screen_clip.0.x - m
@@ -597,7 +595,7 @@ impl GPUState {
 			// This is in game units.
 			//
 			// We take the maximum to account for rotated sprites.
-			let m = (proj_cnt.size / 1.0) * input.ct.get_sprite(proj_cnt.sprite).aspect.max(1.0);
+			let m = (proj_cnt.size / 1.0) * proj_cnt.sprite.aspect.max(1.0);
 
 			// Don't draw sprites that are off the screen
 			if pos.x < screen_clip.0.x - m
@@ -641,9 +639,15 @@ impl GPUState {
 		// NE and SW corners of screen
 		screen_clip: (Point2<f32>, Point2<f32>),
 	) {
-		let system = input.ct.get_system(input.current_system);
+		// TODO: sort once, give objects state
 
-		for o in &system.objects {
+		// Sort by z-distance. This is important, since these are
+		// rendered in this order. We need far objects to be behind
+		// near objects!
+		let mut v: Vec<_> = input.current_system.objects.values().collect();
+		v.sort_by(|a, b| b.pos.z.total_cmp(&a.pos.z));
+
+		for o in v {
 			// Position adjusted for parallax
 			let pos: Point2<f32> = (Point2::new(o.pos.x, o.pos.y) - input.camera_pos) / o.pos.z;
 
@@ -652,7 +656,7 @@ impl GPUState {
 			// This is in game units.
 			//
 			// We take the maximum to account for rotated sprites.
-			let m = (o.size / o.pos.z) * input.ct.get_sprite(o.sprite).aspect.max(1.0);
+			let m = (o.size / o.pos.z) * o.sprite.aspect.max(1.0);
 
 			// Don't draw sprites that are off the screen
 			if pos.x < screen_clip.0.x - m
@@ -680,8 +684,7 @@ impl GPUState {
 				}]),
 			);
 
-			let sprite = input.ct.get_sprite(o.sprite);
-			let texture_a = sprite.get_first_frame(); // ANIMATE
+			let texture_a = o.sprite.get_first_frame(); // ANIMATE
 
 			// Push this object's instance
 			self.state.push_object_buffer(ObjectInstance {
@@ -715,12 +718,7 @@ impl GPUState {
 			// This is in game units.
 			//
 			// We take the maximum to account for rotated sprites.
-			let m = (p.effect.size / 1.0)
-				* input
-					.ct
-					.get_sprite(p.effect.anim.get_sprite())
-					.aspect
-					.max(1.0);
+			let m = (p.effect.size / 1.0) * p.effect.anim.get_sprite().aspect.max(1.0);
 
 			// Don't draw sprites that are off the screen
 			if adjusted_pos.x < screen_clip.0.x - m

crates/render/src/renderinput.rs

@@ -1,6 +1,6 @@
 use std::sync::Arc;
 
-use galactica_content::{Content, SystemHandle};
+use galactica_content::{Content, System};
 use galactica_playeragent::PlayerAgent;
 use galactica_system::phys::PhysImage;
 use galactica_util::timing::Timing;
@@ -16,7 +16,7 @@ pub struct RenderInput {
 	pub player: Arc<PlayerAgent>,
 
 	/// The system we're currently in
-	pub current_system: SystemHandle,
+	pub current_system: Arc<System>,
 
 	/// Height of screen, in world units
 	pub camera_zoom: f32,

crates/render/src/renderstate.rs

@@ -39,7 +39,7 @@ impl<'a> VertexBuffers {
 			ui_counter: 0,
 			radialbar_counter: 0,
 			starfield_counter: 0,
-			starfield_limit: ct.get_config().starfield_instance_limit,
+			starfield_limit: ct.config.starfield_instance_limit,
 
 			object: VertexBuffer::new::<TexturedVertex, ObjectInstance>(
 				"object",
@@ -54,7 +54,7 @@ impl<'a> VertexBuffers {
 				&device,
 				Some(SPRITE_VERTICES),
 				Some(SPRITE_INDICES),
-				ct.get_config().starfield_instance_limit,
+				ct.config.starfield_instance_limit,
 			),
 
 			ui: VertexBuffer::new::<TexturedVertex, UiInstance>(

crates/render/src/starfield.rs

@@ -30,36 +30,32 @@ impl Starfield {
 	pub fn regenerate(&mut self, ct: &Content) {
 		// TODO: save seed in system, regenerate on jump
 		let mut rng = rand::thread_rng();
-		let sz = ct.get_config().starfield_size as f32 / 2.0;
-		self.stars = (0..ct.get_config().starfield_count)
+		let sz = ct.config.starfield_size as f32 / 2.0;
+		self.stars = (0..ct.config.starfield_count)
 			.map(|_| StarfieldStar {
 				pos: Point3::new(
 					rng.gen_range(-sz..=sz),
 					rng.gen_range(-sz..=sz),
-					rng.gen_range(
-						ct.get_config().starfield_min_dist..=ct.get_config().starfield_max_dist,
-					),
-				),
-				size: rng.gen_range(
-					ct.get_config().starfield_min_size..ct.get_config().starfield_max_size,
+					rng.gen_range(ct.config.starfield_min_dist..=ct.config.starfield_max_dist),
 				),
+				size: rng.gen_range(ct.config.starfield_min_size..ct.config.starfield_max_size),
 				tint: Vector2::new(rng.gen_range(0.0..=1.0), rng.gen_range(0.0..=1.0)),
 			})
 			.collect();
 	}
 
 	pub fn update_buffer(&mut self, ct: &Content, state: &mut RenderState) {
-		let sz = ct.get_config().starfield_size as f32;
+		let sz = ct.config.starfield_size as f32;
 
 		// Compute window size in starfield tiles
 		let mut nw_tile = {
 			// Game coordinates (relative to camera) of nw corner of screen.
-			let clip_nw = Point2::new(state.window_aspect, 1.0) * ct.get_config().zoom_max;
+			let clip_nw = Point2::new(state.window_aspect, 1.0) * ct.config.zoom_max;
 
 			// Parallax correction.
 			// Also, adjust v for mod to work properly
 			// (v is centered at 0)
-			let v: Point2<f32> = clip_nw * ct.get_config().starfield_min_dist;
+			let v: Point2<f32> = clip_nw * ct.config.starfield_min_dist;
 			let v_adj = Point2::new(v.x + (sz / 2.0), v.y + (sz / 2.0));
 
 			#[rustfmt::skip]
@@ -83,8 +79,8 @@ impl Starfield {
 
 		// Truncate tile grid to buffer size
 		// (The window won't be full of stars if our instance limit is too small)
-		while ((nw_tile.x * 2 + 1) * (nw_tile.y * 2 + 1) * ct.get_config().starfield_count as i32)
-			> ct.get_config().starfield_instance_limit as i32
+		while ((nw_tile.x * 2 + 1) * (nw_tile.y * 2 + 1) * ct.config.starfield_count as i32)
+			> ct.config.starfield_instance_limit as i32
 		{
 			nw_tile -= Vector2::new(1, 1);
 		}

crates/render/src/ui/api/functions/sprite.rs

@@ -3,7 +3,7 @@ use log::error;
 use rhai::{FnNamespace, FuncRegistration, ImmutableString, Module};
 use std::{cell::RefCell, rc::Rc, sync::Arc};
 
-use crate::ui::{elements::Sprite, UiElement, UiState};
+use crate::ui::{elements::UiSprite, UiElement, UiState};
 
 use super::super::{Color, Rect};
 
@@ -20,7 +20,7 @@ pub fn build_sprite_module(ct_src: Arc<Content>, state_src: Rc<RefCell<UiState>>
 			move |name: ImmutableString, sprite: ImmutableString, rect: Rect| {
 				let mut ui_state = state.borrow_mut();
 
-				let sprite_handle = ct.get_sprite_handle(sprite.as_str());
+				let sprite_handle = ct.sprites.get(&sprite.clone().into());
 				if sprite_handle.is_none() {
 					error!("made a sprite using an invalid source `{sprite}`");
 					return;
@@ -34,7 +34,11 @@ pub fn build_sprite_module(ct_src: Arc<Content>, state_src: Rc<RefCell<UiState>>
 				ui_state.names.push(name.clone());
 				ui_state.elements.insert(
 					name.clone(),
-					UiElement::Sprite(Sprite::new(&ct, name.clone(), sprite_handle.unwrap(), rect)),
+					UiElement::Sprite(UiSprite::new(
+						name.clone(),
+						sprite_handle.unwrap().clone(),
+						rect,
+					)),
 				);
 			},
 		);
@@ -74,12 +78,12 @@ pub fn build_sprite_module(ct_src: Arc<Content>, state_src: Rc<RefCell<UiState>>
 
 				match ui_state.get_mut_by_name(&name) {
 					Some(UiElement::Sprite(x)) => {
-						let m = ct.get_sprite_handle(mask.as_str());
+						let m = ct.sprites.get(&mask.clone().into()).clone();
 						if m.is_none() {
 							error!("called `set_sprite_mask` with an invalid mask `{mask}`");
 							return;
 						}
-						x.set_mask(m)
+						x.set_mask(m.cloned())
 					}
 
 					_ => {
@@ -90,7 +94,6 @@ pub fn build_sprite_module(ct_src: Arc<Content>, state_src: Rc<RefCell<UiState>>
 		);
 
 	let state = state_src.clone();
-	let ct = ct_src.clone();
 	let _ = FuncRegistration::new("take_edge")
 		.with_namespace(FnNamespace::Internal)
 		.set_into_module(
@@ -100,24 +103,22 @@ pub fn build_sprite_module(ct_src: Arc<Content>, state_src: Rc<RefCell<UiState>>
 
 				match ui_state.get_mut_by_name(&name) {
 					Some(UiElement::Sprite(x)) => {
-						let sprite_handle = x.anim.get_sprite();
-						let sprite = &ct.get_sprite(sprite_handle);
+						let sprite = x.anim.get_sprite();
 
-						let edge = resolve_edge_as_edge(edge_name.as_str(), duration, |x| {
-							sprite.get_section_handle_by_name(x)
-						});
+						let edge =
+							resolve_edge_as_edge(&sprite.sections, edge_name.as_str(), duration);
 						let edge = match edge {
 							Err(_) => {
 								error!(
 								"called `sprite::take_edge` on an invalid edge `{}` on sprite `{}`",
-								edge_name, sprite.name
+								edge_name, sprite.index
 							);
 								return;
 							}
 							Ok(s) => s,
 						};
 
-						x.anim.jump_to(&ct, edge);
+						x.anim.jump_to(&edge);
 					}
 					_ => {
 						error!("called `sprite::take_edge` on an invalid name `{name}`")

crates/render/src/ui/api/state.rs

@@ -1,4 +1,4 @@
-use galactica_content::{Ship, SystemObject, SystemObjectHandle};
+use galactica_content::{Ship, SystemObject};
 use galactica_system::{
 	data::{self},
 	phys::{objects::PhysShip, PhysSimShipHandle},
@@ -26,7 +26,7 @@ impl ShipState {
 			.get_ship(self.ship.as_ref().unwrap())
 			.unwrap();
 		let handle = ship.ship.get_data().get_content();
-		self.input.ct.get_ship(handle)
+		handle
 	}
 
 	fn get_ship(&mut self) -> &PhysShip {
@@ -48,20 +48,13 @@ impl ShipState {
 	}
 
 	fn landed_on(&mut self) -> SystemObjectState {
-		let input = self.input.clone();
 		match self.get_ship().get_data().get_state() {
 			data::ShipState::Landed { target } => {
 				return SystemObjectState {
-					input,
-					object: Some(*target),
-				}
-			}
-			_ => {
-				return SystemObjectState {
-					input,
-					object: None,
+					object: Some(target.clone()),
 				}
 			}
+			_ => return SystemObjectState { object: None },
 		};
 	}
 }
@@ -89,8 +82,15 @@ impl CustomType for ShipState {
 			.with_fn("is_collapsing", |s: &mut Self| {
 				s.get_ship().get_data().get_state().is_collapsing()
 			})
-			.with_fn("name", |s: &mut Self| s.get_content().name.clone())
-			.with_fn("thumbnail", |s: &mut Self| s.get_content().thumbnail)
+			.with_fn("display_name", |s: &mut Self| {
+				s.get_content().display_name.clone()
+			})
+			.with_fn("content_index", |s: &mut Self| {
+				s.get_content().display_name.clone()
+			})
+			.with_fn("thumbnail", |s: &mut Self| {
+				s.get_content().thumbnail.clone()
+			})
 			.with_fn("landed_on", |s: &mut Self| s.landed_on())
 			.with_fn("get_shields", |s: &mut Self| {
 				s.get_ship().get_data().get_shields()
@@ -103,14 +103,14 @@ impl CustomType for ShipState {
 				s.get_ship().get_data().get_hull()
 			})
 			.with_fn("get_size", |s: &mut Self| s.get_content().size)
-			.with_fn("get_uid", |s: &mut Self| format!("{}", s.get_ship().uid))
+			.with_fn("phys_uid", |s: &mut Self| format!("{}", s.get_ship().uid))
 			.with_fn("get_pos", |s: &mut Self| {
 				let t = s.get_body().translation();
 				UiVector::new(t.x, t.y)
 			})
 			.with_fn("get_faction_color", |s: &mut Self| {
 				let h = s.get_ship().get_data().get_faction();
-				let c = s.input.ct.get_faction(h).color;
+				let c = h.color;
 				Color::new(c[0], c[1], c[2], 1.0)
 			});
 	}
@@ -118,15 +118,10 @@ impl CustomType for ShipState {
 
 #[derive(Debug, Clone)]
 pub struct SystemObjectState {
-	object: Option<SystemObjectHandle>,
-	input: Arc<RenderInput>,
+	object: Option<Arc<SystemObject>>,
 }
 
-impl SystemObjectState {
-	fn get_content(&mut self) -> &SystemObject {
-		self.input.ct.get_system_object(self.object.unwrap())
-	}
-}
+impl SystemObjectState {}
 
 impl CustomType for SystemObjectState {
 	fn build(mut builder: TypeBuilder<Self>) {
@@ -134,9 +129,11 @@ impl CustomType for SystemObjectState {
 			.with_name("SystemObjectState")
 			//
 			// Get landable name
-			.with_fn("name", |s: &mut Self| {
-				s.get_content()
-					.name
+			.with_fn("display_name", |s: &mut Self| {
+				s.object
+					.as_ref()
+					.unwrap()
+					.display_name
 					.as_ref()
 					.map(|x| x.to_string())
 					.unwrap_or_else(|| {
@@ -147,7 +144,9 @@ impl CustomType for SystemObjectState {
 			//
 			// Get landable description
 			.with_fn("desc", |s: &mut Self| {
-				s.get_content()
+				s.object
+					.as_ref()
+					.unwrap()
 					.desc
 					.as_ref()
 					.map(|x| x.to_string())
@@ -159,31 +158,31 @@ impl CustomType for SystemObjectState {
 			//
 			// Get landable landscape image
 			.with_fn("image", |s: &mut Self| {
-				let handle = s.get_content().image;
-				if let Some(handle) = handle {
-					s.input.ct.get_sprite(handle).name.clone()
+				if let Some(sprite) = &s.object.as_ref().unwrap().image {
+					sprite.index.to_string()
 				} else {
 					error!("UI called `image()` on a system object which doesn't provide one");
 					"".to_string()
 				}
 			})
 			.with_fn("is_some", |s: &mut Self| s.object.is_some())
-			.with_fn("==", |a: &mut Self, b: Self| a.object == b.object)
-			.with_fn("get_size", |s: &mut Self| s.get_content().size)
-			.with_fn("get_label", |s: &mut Self| {
-				ImmutableString::from(&s.get_content().label)
+			.with_fn("==", |a: &mut Self, b: Self| match (&a.object, &b.object) {
+				(None, _) => false,
+				(_, None) => false,
+				(Some(a), Some(b)) => a.index == b.index,
+			})
+			.with_fn("get_size", |s: &mut Self| s.object.as_ref().unwrap().size)
+			.with_fn("get_index", |s: &mut Self| {
+				ImmutableString::from(s.object.as_ref().unwrap().index.as_str())
 			})
 			.with_fn("get_angle", |s: &mut Self| {
-				to_degrees(s.get_content().angle)
+				to_degrees(s.object.as_ref().unwrap().angle)
 			})
 			.with_fn("get_pos", |s: &mut Self| {
-				let t = s.get_content().pos;
+				let t = s.object.as_ref().unwrap().pos;
 				UiVector::new(t.x, t.y)
 			})
-			.with_fn("get_pos_z", |s: &mut Self| {
-				let t = s.get_content().pos;
-				t.z
-			});
+			.with_fn("get_pos_z", |s: &mut Self| s.object.as_ref().unwrap().pos.z);
 	}
 }
 
@@ -225,11 +224,9 @@ impl State {
 
 	pub fn objects(&mut self) -> Array {
 		let mut a = Array::new();
-		let s = self.input.current_system;
-		for o in &self.input.ct.get_system(s).objects {
+		for (_, o) in &self.input.current_system.objects {
 			a.push(Dynamic::from(SystemObjectState {
-				input: self.input.clone(),
-				object: Some(o.handle),
+				object: Some(o.clone()),
 			}));
 		}
 		return a;

crates/render/src/ui/elements/fpsindicator.rs

@@ -51,7 +51,7 @@ impl<'a, 'b: 'a> FpsIndicator {
 			buffer: &self.buffer,
 			left: 10.0,
 			top: 400.0,
-			scale: input.ct.get_config().ui_scale,
+			scale: input.ct.config.ui_scale,
 			bounds: TextBounds {
 				left: 10,
 				top: 400,

crates/render/src/ui/elements/radialbar.rs

@@ -38,12 +38,12 @@ impl RadialBar {
 	pub fn push_to_buffer(&self, input: &RenderInput, state: &mut RenderState) {
 		let rect = self
 			.rect
-			.to_centered(&state.window, input.ct.get_config().ui_scale);
+			.to_centered(&state.window, input.ct.config.ui_scale);
 
 		state.push_radialbar_buffer(RadialBarInstance {
 			position: [rect.pos.x, rect.pos.y],
 			diameter: rect.dim.x.min(rect.dim.y),
-			stroke: self.stroke * input.ct.get_config().ui_scale,
+			stroke: self.stroke * input.ct.config.ui_scale,
 			color: self.color.as_array(),
 			angle: self.progress * TAU,
 		});

crates/render/src/ui/elements/sprite.rs

@@ -1,15 +1,17 @@
+use std::sync::Arc;
+
 use super::super::api::Rect;
 use crate::{
 	ui::{api::Color, event::Event},
 	vertexbuffer::types::UiInstance,
 	RenderInput, RenderState,
 };
-use galactica_content::{Content, SpriteAutomaton, SpriteHandle};
+use galactica_content::{Sprite, SpriteAutomaton};
 use galactica_util::to_radians;
 use rhai::ImmutableString;
 
 #[derive(Debug, Clone)]
-pub struct Sprite {
+pub struct UiSprite {
 	pub anim: SpriteAutomaton,
 	pub name: ImmutableString,
 
@@ -21,7 +23,7 @@ pub struct Sprite {
 	preserve_aspect: bool,
 
 	rect: Rect,
-	mask: Option<SpriteHandle>,
+	mask: Option<Arc<Sprite>>,
 	color: Color,
 
 	/// If true, ignore mouse events until click is released
@@ -30,11 +32,11 @@ pub struct Sprite {
 	has_click: bool,
 }
 
-impl Sprite {
-	pub fn new(ct: &Content, name: ImmutableString, sprite: SpriteHandle, rect: Rect) -> Self {
+impl UiSprite {
+	pub fn new(name: ImmutableString, sprite: Arc<Sprite>, rect: Rect) -> Self {
 		Self {
 			name,
-			anim: SpriteAutomaton::new(&ct, sprite),
+			anim: SpriteAutomaton::new(sprite),
 			rect,
 			angle: 0.0,
 			color: Color::new(1.0, 1.0, 1.0, 1.0),
@@ -46,7 +48,7 @@ impl Sprite {
 		}
 	}
 
-	pub fn set_mask(&mut self, mask: Option<SpriteHandle>) {
+	pub fn set_mask(&mut self, mask: Option<Arc<Sprite>>) {
 		self.mask = mask;
 	}
 
@@ -69,11 +71,11 @@ impl Sprite {
 	pub fn push_to_buffer(&self, input: &RenderInput, state: &mut RenderState) {
 		let mut rect = self
 			.rect
-			.to_centered(&state.window, input.ct.get_config().ui_scale);
+			.to_centered(&state.window, input.ct.config.ui_scale);
 
 		if self.preserve_aspect {
 			let rect_aspect = rect.dim.x / rect.dim.y;
-			let sprite_aspect = input.ct.get_sprite(self.anim.get_sprite()).aspect;
+			let sprite_aspect = self.anim.get_sprite().aspect;
 
 			// "wide rect" case => match height, reduce width
 			if rect_aspect > sprite_aspect {
@@ -97,9 +99,9 @@ impl Sprite {
 			texture_fade: anim_state.fade,
 			mask_index: self
 				.mask
+				.as_ref()
 				.map(|x| {
-					let sprite = input.ct.get_sprite(x);
-					let texture_b = sprite.get_first_frame(); // TODO: animate?
+					let texture_b = x.get_first_frame(); // TODO: animate?
 					[1, texture_b]
 				})
 				.unwrap_or([0, 0]),
@@ -109,7 +111,7 @@ impl Sprite {
 	pub fn check_events(&mut self, input: &RenderInput, state: &mut RenderState) -> Event {
 		let r = self
 			.rect
-			.to_centered(&state.window, input.ct.get_config().ui_scale);
+			.to_centered(&state.window, input.ct.config.ui_scale);
 
 		if self.waiting_for_release && self.has_mouse && !input.player.input.pressed_leftclick() {
 			self.waiting_for_release = false;
@@ -155,6 +157,6 @@ impl Sprite {
 	}
 
 	pub fn step(&mut self, input: &RenderInput, _state: &mut RenderState) {
-		self.anim.step(&input.ct, input.time_since_last_run);
+		self.anim.step(input.time_since_last_run);
 	}
 }

crates/render/src/ui/elements/textbox.rs

@@ -86,9 +86,7 @@ impl TextBox {
 
 impl<'a, 'b: 'a> TextBox {
 	pub fn get_textarea(&'b self, input: &RenderInput, window: &Window) -> TextArea<'a> {
-		let rect = self
-			.rect
-			.to_centered(window, input.ct.get_config().ui_scale);
+		let rect = self.rect.to_centered(window, input.ct.config.ui_scale);
 
 		// Glypon works with physical pixels, so we must do some conversion
 		let fac = window.scale_factor() as f32;
@@ -103,7 +101,7 @@ impl<'a, 'b: 'a> TextBox {
 			buffer: &self.buffer,
 			top: corner_ne.y,
 			left: corner_ne.x,
-			scale: input.ct.get_config().ui_scale,
+			scale: input.ct.config.ui_scale,
 			bounds: TextBounds {
 				top: (corner_ne.y) as i32,
 				bottom: (corner_sw.y) as i32,

crates/render/src/ui/executor.rs

@@ -92,7 +92,7 @@ impl UiScriptExecutor {
 		rhai_error_to_anyhow(
 			self.engine.call_fn(
 				&mut self.scope,
-				ct.get_config()
+				ct.config
 					.ui_scenes
 					.get(current_scene.as_ref().unwrap().as_str())
 					.unwrap(),
@@ -114,7 +114,7 @@ impl UiScriptExecutor {
 		if (*self.state).borrow().get_scene().is_none() {
 			(*self.state)
 				.borrow_mut()
-				.set_scene(ImmutableString::from(&ct.get_config().start_ui_scene));
+				.set_scene(ImmutableString::from(&ct.config.start_ui_scene));
 		}
 		self.set_scene(state, input.clone())?;
 		let current_scene = (*self.state).borrow().get_scene().clone();
@@ -124,7 +124,7 @@ impl UiScriptExecutor {
 		// Run step() (if it is defined)
 
 		let ast = ct
-			.get_config()
+			.config
 			.ui_scenes
 			.get(current_scene.as_ref().unwrap().as_str())
 			.unwrap();
@@ -161,7 +161,7 @@ impl UiScriptExecutor {
 			rhai_error_to_anyhow(
 				self.engine.call_fn(
 					&mut self.scope,
-					ct.get_config()
+					ct.config
 						.ui_scenes
 						.get(current_scene.as_ref().unwrap().as_str())
 						.unwrap(),
@@ -221,7 +221,7 @@ impl UiScriptExecutor {
 				rhai_error_to_anyhow(
 					self.engine.call_fn(
 						&mut self.scope,
-						ct.get_config()
+						ct.config
 							.ui_scenes
 							.get(current_scene.as_ref().unwrap().as_str())
 							.unwrap(),

crates/render/src/ui/state.rs

@@ -6,12 +6,12 @@ use std::collections::HashMap;
 use std::sync::Arc;
 use winit::window::Window;
 
-use super::elements::{FpsIndicator, RadialBar, Sprite, TextBox};
+use super::elements::{FpsIndicator, RadialBar, TextBox, UiSprite};
 use crate::{RenderInput, RenderState};
 
 #[derive(Debug)]
 pub enum UiElement {
-	Sprite(Sprite),
+	Sprite(UiSprite),
 	RadialBar(RadialBar),
 	Text(TextBox),
 }
@@ -95,7 +95,7 @@ impl UiState {
 	}
 
 	pub fn set_scene(&mut self, scene: ImmutableString) {
-		if !self.ct.get_config().ui_scenes.contains_key(scene.as_str()) {
+		if !self.ct.config.ui_scenes.contains_key(scene.as_str()) {
 			error!("tried to switch to ui scene `{scene}`, which doesn't exist");
 			return;
 		}

crates/system/src/data/ship/outfitset.rs

@@ -1,6 +1,6 @@
-use std::collections::HashMap;
+use std::{collections::HashMap, sync::Arc};
 
-use galactica_content::{GunPoint, Outfit, OutfitHandle, OutfitSpace};
+use galactica_content::{ContentIndex, GunPoint, Outfit, OutfitSpace};
 
 /// Possible outcomes when adding an outfit
 pub enum OutfitAddResult {
@@ -34,7 +34,7 @@ pub enum OutfitRemoveResult {
 /// A simple data class, used to keep track of delayed shield generators
 #[derive(Debug, Clone)]
 pub(crate) struct ShieldGenerator {
-	pub outfit: OutfitHandle,
+	pub outfit: Arc<Outfit>,
 	pub delay: f32,
 	pub generation: f32,
 }
@@ -46,7 +46,7 @@ pub(crate) struct ShieldGenerator {
 #[derive(Debug, Clone)]
 pub struct OutfitSet {
 	/// What outfits does this statsum contain?
-	outfits: HashMap<OutfitHandle, u32>,
+	outfits: HashMap<ContentIndex, (Arc<Outfit>, u32)>,
 
 	/// Space available in this outfitset.
 	/// set at creation and never changes.
@@ -59,7 +59,7 @@ pub struct OutfitSet {
 	/// The gun points available in this ship.
 	/// If value is None, this point is free.
 	/// if value is Some, this point is taken.
-	gun_points: HashMap<GunPoint, Option<OutfitHandle>>,
+	gun_points: HashMap<GunPoint, Option<Arc<Outfit>>>,
 
 	/// Outfit values
 	/// This isn't strictly necessary, but we don't want to
@@ -89,7 +89,7 @@ impl OutfitSet {
 		}
 	}
 
-	pub(super) fn add(&mut self, o: &Outfit) -> OutfitAddResult {
+	pub(super) fn add(&mut self, o: &Arc<Outfit>) -> OutfitAddResult {
 		if !(self.total_space - self.used_space).can_contain(&o.space) {
 			return OutfitAddResult::NotEnoughSpace("TODO".to_string());
 		}
@@ -100,7 +100,7 @@ impl OutfitSet {
 			let mut added = false;
 			for (_, outfit) in &mut self.gun_points {
 				if outfit.is_none() {
-					*outfit = Some(o.handle);
+					*outfit = Some(o.clone());
 					added = true;
 				}
 			}
@@ -115,29 +115,29 @@ impl OutfitSet {
 		self.steer_power += o.steer_power;
 		self.shield_strength += o.shield_strength;
 		self.shield_generators.push(ShieldGenerator {
-			outfit: o.handle,
+			outfit: o.clone(),
 			delay: o.shield_delay,
 			generation: o.shield_generation,
 		});
 
-		if self.outfits.contains_key(&o.handle) {
-			*self.outfits.get_mut(&o.handle).unwrap() += 1;
+		if self.outfits.contains_key(&o.index) {
+			self.outfits.get_mut(&o.index).unwrap().1 += 1;
 		} else {
-			self.outfits.insert(o.handle, 1);
+			self.outfits.insert(o.index.clone(), (o.clone(), 1));
 		}
 
 		return OutfitAddResult::Ok;
 	}
 
-	pub(super) fn remove(&mut self, o: &Outfit) -> OutfitRemoveResult {
-		if !self.outfits.contains_key(&o.handle) {
+	pub(super) fn remove(&mut self, o: &Arc<Outfit>) -> OutfitRemoveResult {
+		if !self.outfits.contains_key(&o.index) {
 			return OutfitRemoveResult::NotExist;
 		} else {
-			let n = *self.outfits.get(&o.handle).unwrap();
-			if n == 1u32 {
-				self.outfits.remove(&o.handle);
+			let n = self.outfits.get_mut(&o.index).unwrap();
+			if n.1 == 1u32 {
+				self.outfits.remove(&o.index);
 			} else {
-				*self.outfits.get_mut(&o.handle).unwrap() -= 1;
+				self.outfits.get_mut(&o.index).unwrap().1 -= 1;
 			}
 		}
 
@@ -152,7 +152,7 @@ impl OutfitSet {
 			let index = self
 				.shield_generators
 				.iter()
-				.position(|g| g.outfit == o.handle)
+				.position(|g| g.outfit.index == o.index)
 				.unwrap();
 			self.shield_generators.remove(index);
 		}
@@ -165,16 +165,16 @@ impl OutfitSet {
 impl OutfitSet {
 	/// The number of outfits in this set
 	pub fn len(&self) -> u32 {
-		self.outfits.iter().map(|(_, x)| x).sum()
+		self.outfits.iter().map(|(_, (_, x))| x).sum()
 	}
 
 	/// Iterate over all outfits
-	pub fn iter_outfits(&self) -> impl Iterator<Item = (&OutfitHandle, &u32)> {
-		self.outfits.iter()
+	pub fn iter_outfits(&self) -> impl Iterator<Item = &(Arc<Outfit>, u32)> {
+		self.outfits.values()
 	}
 
 	/// Iterate over all gun points
-	pub fn iter_gun_points(&self) -> impl Iterator<Item = (&GunPoint, &Option<OutfitHandle>)> {
+	pub fn iter_gun_points(&self) -> impl Iterator<Item = (&GunPoint, &Option<Arc<Outfit>>)> {
 		self.gun_points.iter()
 	}
 
@@ -190,7 +190,7 @@ impl OutfitSet {
 
 	/// Get the outfit attached to the given gun point
 	/// Will panic if this gunpoint is not in this outfit set.
-	pub fn get_gun(&self, point: &GunPoint) -> Option<OutfitHandle> {
+	pub fn get_gun(&self, point: &GunPoint) -> Option<Arc<Outfit>> {
 		self.gun_points.get(point).unwrap().clone()
 	}
 

crates/system/src/data/ship/ship.rs

@@ -1,7 +1,7 @@
-use galactica_content::{Content, FactionHandle, GunPoint, Outfit, ShipHandle, SystemObjectHandle};
+use galactica_content::{Faction, GunPoint, Outfit, Ship, SystemObject};
 use nalgebra::Isometry2;
 use rand::{rngs::ThreadRng, Rng};
-use std::{collections::HashMap, time::Instant};
+use std::{collections::HashMap, sync::Arc, time::Instant};
 
 use super::{OutfitSet, ShipAutoPilot, ShipPersonality, ShipState};
 
@@ -9,8 +9,8 @@ use super::{OutfitSet, ShipAutoPilot, ShipPersonality, ShipState};
 #[derive(Debug, Clone)]
 pub struct ShipData {
 	// Metadata values
-	ct_handle: ShipHandle,
-	faction: FactionHandle,
+	ship: Arc<Ship>,
+	faction: Arc<Faction>,
 	outfits: OutfitSet,
 
 	personality: ShipPersonality,
@@ -34,16 +34,14 @@ pub struct ShipData {
 impl ShipData {
 	/// Create a new ShipData
 	pub(crate) fn new(
-		ct: &Content,
-		ct_handle: ShipHandle,
-		faction: FactionHandle,
+		ship: Arc<Ship>,
+		faction: Arc<Faction>,
 		personality: ShipPersonality,
 	) -> Self {
-		let s = ct.get_ship(ct_handle);
 		ShipData {
-			ct_handle,
+			ship: ship.clone(),
 			faction,
-			outfits: OutfitSet::new(s.space, &s.guns),
+			outfits: OutfitSet::new(ship.space, &ship.guns),
 			personality,
 			last_hit: Instant::now(),
 			rng: rand::thread_rng(),
@@ -54,9 +52,9 @@ impl ShipData {
 			},
 
 			// Initial stats
-			hull: s.hull,
+			hull: ship.hull,
 			shields: 0.0,
-			gun_cooldowns: s.guns.iter().map(|x| (x.clone(), 0.0)).collect(),
+			gun_cooldowns: ship.guns.iter().map(|x| (x.clone(), 0.0)).collect(),
 		}
 	}
 
@@ -80,7 +78,7 @@ impl ShipData {
 	/// That is the simulation's responsiblity.
 	///
 	/// Will panic if we're not flying.
-	pub fn start_land_on(&mut self, target_handle: SystemObjectHandle) {
+	pub fn start_land_on(&mut self, target_handle: Arc<SystemObject>) {
 		match self.state {
 			ShipState::Flying { .. } => {
 				self.state = ShipState::Landing {
@@ -108,9 +106,11 @@ impl ShipData {
 	/// Finish landing sequence
 	/// Will panic if we're not landing
 	pub fn finish_land_on(&mut self) {
-		match self.state {
+		match &self.state {
 			ShipState::Landing { target, .. } => {
-				self.state = ShipState::Landed { target };
+				self.state = ShipState::Landed {
+					target: target.clone(),
+				};
 			}
 			_ => {
 				unreachable!("Called `finish_land_on` on a ship that isn't landing!")
@@ -123,14 +123,13 @@ impl ShipData {
 	/// That is the simulation's responsiblity.
 	///
 	/// Will panic if we're not flying.
-	pub fn start_unland_to(&mut self, ct: &Content, to_position: Isometry2<f32>) {
-		match self.state {
+	pub fn start_unland_to(&mut self, to_position: Isometry2<f32>) {
+		match &self.state {
 			ShipState::Landed { target } => {
-				let obj = ct.get_system_object(target);
 				self.state = ShipState::UnLanding {
 					to_position,
-					from: target,
-					current_z: obj.pos.z,
+					from: target.clone(),
+					current_z: target.pos.z,
 				};
 			}
 			_ => {
@@ -177,14 +176,14 @@ impl ShipData {
 	}
 
 	/// Add an outfit to this ship
-	pub fn add_outfit(&mut self, o: &Outfit) -> super::OutfitAddResult {
+	pub fn add_outfit(&mut self, o: &Arc<Outfit>) -> super::OutfitAddResult {
 		let r = self.outfits.add(o);
 		self.shields = self.outfits.get_total_shields();
 		return r;
 	}
 
 	/// Remove an outfit from this ship
-	pub fn remove_outfit(&mut self, o: &Outfit) -> super::OutfitRemoveResult {
+	pub fn remove_outfit(&mut self, o: &Arc<Outfit>) -> super::OutfitRemoveResult {
 		self.outfits.remove(o)
 	}
 
@@ -192,16 +191,14 @@ impl ShipData {
 	/// Will panic if `which` isn't a point on this ship.
 	/// Returns `true` if this gun was fired,
 	/// and `false` if it is on cooldown or empty.
-	pub(crate) fn fire_gun(&mut self, ct: &Content, which: &GunPoint) -> bool {
+	pub(crate) fn fire_gun(&mut self, which: &GunPoint) -> bool {
 		let c = self.gun_cooldowns.get_mut(which).unwrap();
 
 		if *c > 0.0 {
 			return false;
 		}
 
-		let g = self.outfits.get_gun(which);
-		if g.is_some() {
-			let g = ct.get_outfit(g.unwrap());
+		if let Some(g) = self.outfits.get_gun(which) {
 			let gun = g.gun.as_ref().unwrap();
 			*c = 0f32.max(gun.rate + self.rng.gen_range(-gun.rate_rng..=gun.rate_rng));
 			return true;
@@ -289,8 +286,8 @@ impl ShipData {
 	}
 
 	/// Get a handle to this ship's content
-	pub fn get_content(&self) -> ShipHandle {
-		self.ct_handle
+	pub fn get_content(&self) -> &Arc<Ship> {
+		&self.ship
 	}
 
 	/// Get this ship's current hull.
@@ -316,12 +313,12 @@ impl ShipData {
 	}
 
 	/// Get this ship's faction
-	pub fn get_faction(&self) -> FactionHandle {
-		self.faction
+	pub fn get_faction(&self) -> &Arc<Faction> {
+		&self.faction
 	}
 
 	/// Get this ship's content handle
-	pub fn get_ship(&self) -> ShipHandle {
-		self.ct_handle
+	pub fn get_ship(&self) -> &Arc<Ship> {
+		&self.ship
 	}
 }

crates/system/src/data/ship/shipstate.rs

@@ -1,7 +1,6 @@
-use std::num::NonZeroU32;
-
-use galactica_content::SystemObjectHandle;
+use galactica_content::SystemObject;
 use rapier2d::math::Isometry;
+use std::{num::NonZeroU32, sync::Arc};
 
 /// A ship autopilot.
 /// An autopilot is a lightweight ShipController that
@@ -14,7 +13,7 @@ pub enum ShipAutoPilot {
 	/// Automatically arrange for landing on the given object
 	Landing {
 		/// The body we want to land on
-		target: SystemObjectHandle,
+		target: Arc<SystemObject>,
 	},
 }
 
@@ -40,14 +39,14 @@ pub enum ShipState {
 	/// This ship is landed on a planet
 	Landed {
 		/// The planet this ship is landed on
-		target: SystemObjectHandle,
+		target: Arc<SystemObject>,
 	},
 
 	/// This ship is landing on a planet
 	/// (playing the animation)
 	Landing {
 		/// The planet we're landing on
-		target: SystemObjectHandle,
+		target: Arc<SystemObject>,
 
 		/// Our current z-coordinate
 		current_z: f32,
@@ -60,7 +59,7 @@ pub enum ShipState {
 		to_position: Isometry<f32>,
 
 		/// The planet we're taking off from
-		from: SystemObjectHandle,
+		from: Arc<SystemObject>,
 
 		/// Our current z-coordinate
 		current_z: f32,
@@ -69,9 +68,9 @@ pub enum ShipState {
 
 impl ShipState {
 	/// What planet is this ship landed on?
-	pub fn landed_on(&self) -> Option<SystemObjectHandle> {
+	pub fn landed_on(&self) -> Option<Arc<SystemObject>> {
 		match self {
-			Self::Landed { target } => Some(*target),
+			Self::Landed { target } => Some(target.clone()),
 			_ => None,
 		}
 	}

crates/system/src/phys/objects/effect.rs

@@ -1,7 +1,8 @@
-use galactica_content::{Content, EffectHandle, EffectVelocity, SpriteAutomaton};
+use galactica_content::{Effect, EffectVelocity, SpriteAutomaton};
 use nalgebra::{Point2, Rotation2, Vector2};
 use rand::Rng;
 use rapier2d::dynamics::{RevoluteJointBuilder, RigidBodyBuilder, RigidBodyHandle, RigidBodyType};
+use std::sync::Arc;
 
 use crate::phys::{PhysStepResources, PhysWrapper};
 
@@ -32,16 +33,13 @@ pub struct PhysEffect {
 impl PhysEffect {
 	/// Create a new effect inside `Wrapper`
 	pub fn new(
-		ct: &Content,
 		wrapper: &mut PhysWrapper,
-		effect: EffectHandle,
+		effect: Arc<Effect>,
 		// Where to spawn the particle, in world space.
 		pos: Vector2<f32>,
 		parent: RigidBodyHandle,
 		target: Option<RigidBodyHandle>,
 	) -> Self {
-		let effect = ct.get_effect(effect);
-
 		let mut rng = rand::thread_rng();
 		let parent_body = wrapper.get_rigid_body(parent).unwrap();
 		let parent_angle = parent_body.rotation().angle();
@@ -113,7 +111,7 @@ impl PhysEffect {
 				};
 
 				PhysEffect {
-					anim: SpriteAutomaton::new(ct, effect.sprite),
+					anim: SpriteAutomaton::new(effect.sprite.clone()),
 					rigid_body,
 					lifetime: 0f32.max(
 						effect.lifetime + rng.gen_range(-effect.lifetime_rng..=effect.lifetime_rng),
@@ -153,7 +151,7 @@ impl PhysEffect {
 				);
 
 				PhysEffect {
-					anim: SpriteAutomaton::new(ct, effect.sprite),
+					anim: SpriteAutomaton::new(effect.sprite.clone()),
 					rigid_body,
 					lifetime: 0f32.max(
 						effect.lifetime + rng.gen_range(-effect.lifetime_rng..=effect.lifetime_rng),
@@ -174,7 +172,7 @@ impl PhysEffect {
 			return;
 		}
 
-		self.anim.step(&res.ct, res.t);
+		self.anim.step(res.t);
 		self.lifetime -= res.t;
 
 		if self.lifetime <= 0.0 {

crates/system/src/phys/objects/projectile.rs

@@ -1,4 +1,6 @@
-use galactica_content::{AnimationState, Content, FactionHandle, Projectile, SpriteAutomaton};
+use std::sync::Arc;
+
+use galactica_content::{AnimationState, Faction, Projectile, SpriteAutomaton};
 use rand::Rng;
 use rapier2d::{dynamics::RigidBodyHandle, geometry::ColliderHandle};
 
@@ -10,7 +12,7 @@ use super::PhysEffect;
 #[derive(Debug, Clone)]
 pub struct PhysProjectile {
 	/// This projectile's game data
-	pub content: Projectile,
+	pub content: Arc<Projectile>,
 
 	/// This projectile's sprite animation state
 	anim: SpriteAutomaton,
@@ -19,7 +21,7 @@ pub struct PhysProjectile {
 	lifetime: f32,
 
 	/// The faction this projectile belongs to
-	pub faction: FactionHandle,
+	pub faction: Arc<Faction>,
 
 	/// This projectile's rigidbody
 	pub rigid_body: RigidBodyHandle,
@@ -38,17 +40,16 @@ pub struct PhysProjectile {
 impl PhysProjectile {
 	/// Create a new projectile
 	pub fn new(
-		ct: &Content,
-		content: Projectile, // TODO: use a handle?
+		content: Arc<Projectile>,
 		rigid_body: RigidBodyHandle,
-		faction: FactionHandle,
+		faction: Arc<Faction>,
 		collider: ColliderHandle,
 	) -> Self {
 		let mut rng = rand::thread_rng();
 		let size_rng = content.size_rng;
 		let lifetime = content.lifetime;
 		PhysProjectile {
-			anim: SpriteAutomaton::new(ct, content.sprite),
+			anim: SpriteAutomaton::new(content.sprite.clone()),
 			rigid_body,
 			collider,
 			content,
@@ -67,31 +68,24 @@ impl PhysProjectile {
 		wrapper: &mut PhysWrapper,
 	) {
 		self.lifetime -= res.t;
-		self.anim.step(&res.ct, res.t);
+		self.anim.step(res.t);
 
 		if self.lifetime <= 0.0 {
-			self.destroy(res, new, wrapper, true);
+			self.destroy(new, wrapper, true);
 		}
 	}
 
 	/// Destroy this projectile without creating an expire effect
 	pub(in crate::phys) fn destroy_silent(
 		&mut self,
-		res: &PhysStepResources,
 		new: &mut NewObjects,
 		wrapper: &mut PhysWrapper,
 	) {
-		self.destroy(res, new, wrapper, false);
+		self.destroy(new, wrapper, false);
 	}
 
 	/// Destroy this projectile
-	fn destroy(
-		&mut self,
-		res: &PhysStepResources,
-		new: &mut NewObjects,
-		wrapper: &mut PhysWrapper,
-		expire: bool,
-	) {
+	fn destroy(&mut self, new: &mut NewObjects, wrapper: &mut PhysWrapper, expire: bool) {
 		if self.is_destroyed {
 			return;
 		}
@@ -100,11 +94,10 @@ impl PhysProjectile {
 		if expire {
 			match &self.content.expire_effect {
 				None => {}
-				Some(handle) => {
+				Some(effect) => {
 					new.effects.push(PhysEffect::new(
-						&res.ct,
 						wrapper,
-						*handle,
+						effect.clone(),
 						*rb.translation(),
 						self.rigid_body,
 						None,

crates/system/src/phys/objects/ship/collapse.rs

@@ -1,4 +1,4 @@
-use galactica_content::{CollapseEvent, Content, Ship};
+use galactica_content::{CollapseEvent, Ship};
 use nalgebra::{Point2, Vector2};
 use rand::{rngs::ThreadRng, Rng};
 use rapier2d::{
@@ -37,14 +37,13 @@ impl ShipCollapseSequence {
 	}
 
 	/// Pick a random points inside a ship's collider
-	fn random_in_ship(&mut self, ct: &Content, ship: &Ship, collider: &Collider) -> Vector2<f32> {
+	fn random_in_ship(&mut self, ship: &Ship, collider: &Collider) -> Vector2<f32> {
 		let mut y = 0.0;
 		let mut x = 0.0;
 		let mut a = false;
 		while !a {
 			x = self.rng.gen_range(-1.0..=1.0) * ship.size / 2.0;
-			y = self.rng.gen_range(-1.0..=1.0) * ship.size * ct.get_sprite(ship.sprite).aspect
-				/ 2.0;
+			y = self.rng.gen_range(-1.0..=1.0) * ship.size * ship.sprite.aspect / 2.0;
 			a = collider.shape().contains_local_point(&Point2::new(x, y));
 		}
 		Vector2::new(x, y)
@@ -62,7 +61,7 @@ impl ShipCollapseSequence {
 	) {
 		let rigid_body = wrapper.get_rigid_body(rigid_body_handle).unwrap().clone();
 		let collider = wrapper.get_collider(collider_handle).unwrap().clone();
-		let ship_content = res.ct.get_ship(ship_data.get_content());
+		let ship_content = ship_data.get_content();
 		let ship_pos = rigid_body.translation();
 		let ship_rot = rigid_body.rotation();
 
@@ -84,14 +83,13 @@ impl ShipCollapseSequence {
 								let pos: Vector2<f32> = if let Some(pos) = spawner.pos {
 									Vector2::new(pos.x, pos.y)
 								} else {
-									self.random_in_ship(&res.ct, ship_content, &collider)
+									self.random_in_ship(&ship_content, &collider)
 								};
 								let pos = ship_pos + (ship_rot * pos);
 
 								new.effects.push(PhysEffect::new(
-									&res.ct,
 									wrapper,
-									spawner.effect,
+									spawner.effect.clone(),
 									pos,
 									rigid_body_handle,
 									None,
@@ -124,15 +122,14 @@ impl ShipCollapseSequence {
 				let pos = if let Some(pos) = spawner.pos {
 					Vector2::new(pos.x, pos.y)
 				} else {
-					self.random_in_ship(&res.ct, ship_content, &collider)
+					self.random_in_ship(&ship_content, &collider)
 				};
 
 				// Position, adjusted for ship rotation
 				let pos = ship_pos + (ship_rot * pos);
 				new.effects.push(PhysEffect::new(
-					&res.ct,
 					wrapper,
-					spawner.effect,
+					spawner.effect.clone(),
 					pos,
 					rigid_body_handle,
 					None,

crates/system/src/phys/objects/ship/controller/point.rs

@@ -25,7 +25,7 @@ impl PointShipController {
 impl ShipControllerStruct for PointShipController {
 	fn update_controls(
 		&mut self,
-		res: &PhysStepResources,
+		_res: &PhysStepResources,
 		img: &PhysImage,
 		this_ship: PhysSimShipHandle,
 	) -> Option<ShipControls> {
@@ -40,14 +40,14 @@ impl ShipControllerStruct for PointShipController {
 		let my_position = this_rigidbody.translation();
 		let my_rotation = this_rigidbody.rotation();
 		let my_angvel = this_rigidbody.angvel();
-		let my_faction = res.ct.get_faction(my_ship.ship.data.get_faction());
+		let my_faction = my_ship.ship.data.get_faction();
 
 		// Iterate all possible targets
 		let mut hostile_ships = img.iter_ships().filter(
 			// Target only flying ships we're hostile towards
 			|s| match my_faction
 				.relationships
-				.get(&s.ship.data.get_faction())
+				.get(&s.ship.data.get_faction().index)
 				.unwrap()
 			{
 				Relationship::Hostile => match s.ship.data.get_state() {

crates/system/src/phys/objects/ship/ship.rs

@@ -1,6 +1,8 @@
+use std::sync::Arc;
+
 use galactica_content::{
-	AnimationState, Content, EnginePoint, FactionHandle, GunPoint, OutfitHandle,
-	ProjectileCollider, ShipHandle, SpriteAutomaton,
+	AnimationState, EnginePoint, Faction, GunPoint, Outfit, ProjectileCollider, Ship,
+	SpriteAutomaton,
 };
 use nalgebra::{vector, Point2, Rotation2, Vector2};
 use rand::Rng;
@@ -66,24 +68,22 @@ pub struct PhysShip {
 impl PhysShip {
 	/// Make a new ship
 	pub(crate) fn new(
-		ct: &Content,
-		handle: ShipHandle,
+		ship: Arc<Ship>,
 		personality: ShipPersonality,
-		faction: FactionHandle,
+		faction: Arc<Faction>,
 		rigid_body: RigidBodyHandle,
 		collider: ColliderHandle,
 	) -> Self {
-		let ship_ct = ct.get_ship(handle);
 		PhysShip {
 			uid: get_phys_id(),
-			anim: SpriteAutomaton::new(ct, ship_ct.sprite),
+			anim: SpriteAutomaton::new(ship.sprite.clone()),
 			rigid_body,
 			collider,
-			data: ShipData::new(ct, handle, faction, personality),
+			data: ShipData::new(ship.clone(), faction, personality),
 			engine_anim: Vec::new(),
 			controls: ShipControls::new(),
 			last_controls: ShipControls::new(),
-			collapse_sequence: Some(ShipCollapseSequence::new(ship_ct.collapse.length)),
+			collapse_sequence: Some(ShipCollapseSequence::new(ship.collapse.length)),
 			is_destroyed: false,
 			controller: match personality {
 				ShipPersonality::Dummy | ShipPersonality::Player => ShipController::new_null(),
@@ -105,32 +105,28 @@ impl PhysShip {
 		}
 
 		self.data.step(res.t);
-		self.anim.step(&res.ct, res.t);
+		self.anim.step(res.t);
 
 		for (_, e) in &mut self.engine_anim {
-			e.step(&res.ct, res.t);
+			e.step(res.t);
 		}
 
 		// Flare animations
 		if !self.controls.thrust && self.last_controls.thrust {
-			let flare = self.get_flare(&res.ct);
-			if flare.is_some() {
-				let flare_outfit = flare.unwrap();
-				let flare = res.ct.get_outfit(flare_outfit);
+			let flare = self.get_flare();
+			if let Some(flare) = flare {
 				if flare.engine_flare_on_stop.is_some() {
 					for (_, e) in &mut self.engine_anim {
-						e.jump_to(&res.ct, flare.engine_flare_on_stop.unwrap());
+						e.jump_to(flare.engine_flare_on_stop.as_ref().unwrap());
 					}
 				}
 			};
 		} else if self.controls.thrust && !self.last_controls.thrust {
-			let flare = self.get_flare(&res.ct);
-			if flare.is_some() {
-				let flare_outfit = flare.unwrap();
-				let flare = res.ct.get_outfit(flare_outfit);
+			let flare = self.get_flare();
+			if let Some(flare) = flare {
 				if flare.engine_flare_on_start.is_some() {
 					for (_, e) in &mut self.engine_anim {
-						e.jump_to(&res.ct, flare.engine_flare_on_start.unwrap());
+						e.jump_to(flare.engine_flare_on_start.as_ref().unwrap());
 					}
 				}
 			};
@@ -162,12 +158,11 @@ impl PhysShip {
 				// Compute new controls
 				let controls = match autopilot {
 					ShipAutoPilot::Landing { target } => {
-						let target_obj = res.ct.get_system_object(*target);
 						let controls = autopilot::auto_landing(
 							res,
 							img,
 							PhysSimShipHandle(self.collider),
-							Vector2::new(target_obj.pos.x, target_obj.pos.y),
+							Vector2::new(target.pos.x, target.pos.y),
 						);
 
 						// Try to land the ship.
@@ -176,7 +171,7 @@ impl PhysShip {
 						let landed = 'landed: {
 							let r = wrapper.get_rigid_body(self.rigid_body).unwrap();
 
-							let t_pos = Vector2::new(target_obj.pos.x, target_obj.pos.y);
+							let t_pos = Vector2::new(target.pos.x, target.pos.y);
 							let s_pos = Vector2::new(
 								r.position().translation.x,
 								r.position().translation.y,
@@ -186,13 +181,13 @@ impl PhysShip {
 							// Can't just set_active(false), since we still need that collider's mass.
 
 							// We're in land range...
-							if (t_pos - s_pos).magnitude() > target_obj.size / 2.0 {
+							if (t_pos - s_pos).magnitude() > target.size / 2.0 {
 								break 'landed false;
 							}
 
 							// And we'll stay in land range long enough.
 							if (t_pos - (s_pos + r.velocity_at_point(r.center_of_mass()) * 2.0))
-								.magnitude() > target_obj.size / 2.0
+								.magnitude() > target.size / 2.0
 							{
 								break 'landed false;
 							}
@@ -202,7 +197,7 @@ impl PhysShip {
 								Group::GROUP_1,
 								Group::empty(),
 							));
-							self.data.start_land_on(*target);
+							self.data.start_land_on(target.clone());
 							break 'landed true;
 						};
 
@@ -229,7 +224,7 @@ impl PhysShip {
 				if self.controls.guns {
 					// TODO: don't allocate here. This is a hack to satisfy the borrow checker,
 					// convert this to a refcell or do the replace dance.
-					let pairs: Vec<(GunPoint, Option<OutfitHandle>)> = self
+					let pairs: Vec<(GunPoint, Option<Arc<Outfit>>)> = self
 						.data
 						.get_outfits()
 						.iter_gun_points()
@@ -237,7 +232,7 @@ impl PhysShip {
 						.collect();
 
 					for (gun_point, outfit) in pairs {
-						if self.data.fire_gun(&res.ct, &gun_point) {
+						if self.data.fire_gun(&gun_point) {
 							let outfit = outfit.unwrap();
 
 							let mut rng = rand::thread_rng();
@@ -250,20 +245,17 @@ impl PhysShip {
 								rigid_body.velocity_at_point(rigid_body.center_of_mass());
 
 							let pos = ship_pos + (ship_rot * gun_point.pos);
+							let gun = outfit.gun.as_ref().unwrap();
 
-							let outfit = res.ct.get_outfit(outfit);
-							let outfit = outfit.gun.as_ref().unwrap();
-
-							let spread = rng.gen_range(
-								-outfit.projectile.angle_rng..=outfit.projectile.angle_rng,
-							);
+							let spread =
+								rng.gen_range(-gun.projectile.angle_rng..=gun.projectile.angle_rng);
 							let vel = ship_vel
 								+ (Rotation2::new(ship_ang + spread)
 									* Vector2::new(
-										outfit.projectile.speed
+										gun.projectile.speed
 											+ rng.gen_range(
-												-outfit.projectile.speed_rng
-													..=outfit.projectile.speed_rng,
+												-gun.projectile.speed_rng
+													..=gun.projectile.speed_rng,
 											),
 										0.0,
 									));
@@ -274,7 +266,7 @@ impl PhysShip {
 								.linvel(vel)
 								.build();
 
-							let mut collider = match &outfit.projectile.collider {
+							let mut collider = match &gun.projectile.collider {
 								ProjectileCollider::Ball(b) => ColliderBuilder::ball(b.radius)
 									.sensor(true)
 									.active_events(ActiveEvents::COLLISION_EVENTS)
@@ -290,10 +282,9 @@ impl PhysShip {
 							let collider = wrapper.insert_collider(collider, rigid_body);
 
 							new.projectiles.push(PhysProjectile::new(
-								&res.ct,
-								outfit.projectile.clone(),
+								gun.projectile.clone(),
 								rigid_body,
-								self.data.get_faction(),
+								self.data.get_faction().clone(),
 								collider,
 							));
 						}
@@ -306,8 +297,6 @@ impl PhysShip {
 				current_z,
 				from,
 			} => {
-				let from_obj = res.ct.get_system_object(*from);
-
 				let controls = autopilot::auto_landing(
 					&res,
 					img,
@@ -315,7 +304,7 @@ impl PhysShip {
 					Vector2::new(to_position.translation.x, to_position.translation.y),
 				);
 				let r = wrapper.get_rigid_body_mut(self.rigid_body).unwrap();
-				let max_d = (Vector2::new(from_obj.pos.x, from_obj.pos.y)
+				let max_d = (Vector2::new(from.pos.x, from.pos.y)
 					- Vector2::new(to_position.translation.x, to_position.translation.y))
 				.magnitude();
 				let now_d = (r.translation()
@@ -324,7 +313,7 @@ impl PhysShip {
 				let f = now_d / max_d;
 
 				let current_z = *current_z;
-				let zdist = 1.0 - from_obj.pos.z;
+				let zdist = 1.0 - from.pos.z;
 
 				if current_z <= 1.0 {
 					// Finish unlanding ship
@@ -351,18 +340,17 @@ impl PhysShip {
 			}
 
 			ShipState::Landing { target, current_z } => {
-				let target_obj = res.ct.get_system_object(*target);
 				let controls = autopilot::auto_landing(
 					&res,
 					img,
 					PhysSimShipHandle(self.collider),
-					Vector2::new(target_obj.pos.x, target_obj.pos.y),
+					Vector2::new(target.pos.x, target.pos.y),
 				);
 
 				let current_z = *current_z;
-				let zdist = target_obj.pos.z - 1.0;
+				let zdist = target.pos.z - 1.0;
 
-				if current_z >= target_obj.pos.z {
+				if current_z >= target.pos.z {
 					// Finish landing ship
 					self.data.finish_land_on();
 					let r = wrapper.get_rigid_body_mut(self.rigid_body).unwrap();
@@ -432,7 +420,7 @@ impl PhysShip {
 		let rigid_body = wrapper.get_rigid_body(self.rigid_body).unwrap().clone();
 		let collider = wrapper.get_collider(self.collider).unwrap().clone();
 
-		let ship_content = res.ct.get_ship(self.data.get_content());
+		let ship_content = self.data.get_content();
 		let ship_pos = rigid_body.translation();
 		let ship_rot = rigid_body.rotation();
 		let ship_ang = ship_rot.angle();
@@ -451,7 +439,7 @@ impl PhysShip {
 						while !a {
 							x = rng.gen_range(-1.0..=1.0) * ship_content.size / 2.0;
 							y = rng.gen_range(-1.0..=1.0)
-								* ship_content.size * res.ct.get_sprite(ship_content.sprite).aspect
+								* ship_content.size * ship_content.sprite.aspect
 								/ 2.0;
 							a = collider.shape().contains_local_point(&Point2::new(x, y));
 						}
@@ -461,9 +449,8 @@ impl PhysShip {
 					let pos = ship_pos + (Rotation2::new(ship_ang) * pos);
 
 					new.effects.push(PhysEffect::new(
-						&res.ct,
 						wrapper,
-						e.effect,
+						e.effect.clone(),
 						pos,
 						self.rigid_body,
 						None,
@@ -476,12 +463,11 @@ impl PhysShip {
 
 /// Public mutable
 impl PhysShip {
-	fn get_flare(&mut self, ct: &Content) -> Option<OutfitHandle> {
+	fn get_flare(&mut self) -> Option<Arc<Outfit>> {
 		// TODO: better way to pick flare sprite
 		for (h, _) in self.data.get_outfits().iter_outfits() {
-			let c = ct.get_outfit(*h);
-			if c.engine_flare_sprite.is_some() {
-				return Some(*h);
+			if h.engine_flare_sprite.is_some() {
+				return Some(h.clone());
 			}
 		}
 		return None;
@@ -489,37 +475,47 @@ impl PhysShip {
 
 	/// Re-create this ship's engine flare animations
 	/// Should be called whenever we change outfits
-	fn update_flares(&mut self, ct: &Content) {
-		let flare_outfit = self.get_flare(ct);
-		if flare_outfit.is_none() {
+	fn update_flares(&mut self) {
+		let flare = self.get_flare();
+		if flare.is_none() {
 			self.engine_anim = Vec::new();
 			return;
 		}
-		let flare = ct
-			.get_outfit(flare_outfit.unwrap())
-			.engine_flare_sprite
-			.unwrap();
 
-		self.engine_anim = ct
-			.get_ship(self.data.get_content())
+		self.engine_anim = self
+			.data
+			.get_content()
 			.engines
 			.iter()
-			.map(|e| (e.clone(), SpriteAutomaton::new(ct, flare)))
+			.map(|e| {
+				(
+					e.clone(),
+					SpriteAutomaton::new(
+						flare
+							.as_ref()
+							.unwrap()
+							.engine_flare_sprite
+							.as_ref()
+							.unwrap()
+							.clone(),
+					),
+				)
+			})
 			.collect();
 	}
 
 	/// Add one outfit to this ship
-	pub fn add_outfit(&mut self, ct: &Content, o: OutfitHandle) {
-		self.data.add_outfit(ct.get_outfit(o));
-		self.update_flares(ct);
+	pub fn add_outfit(&mut self, o: Arc<Outfit>) {
+		self.data.add_outfit(&o);
+		self.update_flares();
 	}
 
 	/// Add many outfits to this ship
-	pub fn add_outfits(&mut self, ct: &Content, outfits: impl IntoIterator<Item = OutfitHandle>) {
+	pub fn add_outfits(&mut self, outfits: impl IntoIterator<Item = Arc<Outfit>>) {
 		for o in outfits {
-			self.data.add_outfit(ct.get_outfit(o));
+			self.data.add_outfit(&o);
 		}
-		self.update_flares(ct);
+		self.update_flares();
 	}
 }
 

crates/system/src/phys/physsim.rs

@@ -1,5 +1,6 @@
+use galactica_content::Faction;
 use galactica_content::Relationship;
-use galactica_content::{Content, FactionHandle, ShipHandle, SystemHandle};
+use galactica_content::Ship;
 use galactica_playeragent::PlayerAgent;
 use nalgebra::{Isometry2, Point2, Rotation2, Vector2};
 use rand::Rng;
@@ -8,6 +9,7 @@ use rapier2d::{
 	geometry::{ColliderHandle, Group, InteractionGroups},
 };
 use std::collections::HashMap;
+use std::sync::Arc;
 
 use super::PhysEffectImage;
 use super::{
@@ -49,13 +51,8 @@ impl NewObjects {
 
 /// Manages the physics state of one system
 pub struct PhysSim {
-	/// The system this sim is attached to
-	_system: SystemHandle,
-
 	wrapper: PhysWrapper,
-
 	new: NewObjects,
-
 	effects: Vec<PhysEffect>,
 	projectiles: HashMap<ColliderHandle, PhysProjectile>,
 	ships: HashMap<ColliderHandle, PhysShip>,
@@ -63,10 +60,9 @@ pub struct PhysSim {
 
 // Private methods
 impl PhysSim {
-	pub(super) fn start_unland_ship(&mut self, ct: &Content, collider: ColliderHandle) {
+	pub(super) fn start_unland_ship(&mut self, collider: ColliderHandle) {
 		let ship = self.ships.get_mut(&collider).unwrap();
 		let obj = ship.data.get_state().landed_on().unwrap();
-		let obj = ct.get_system_object(obj);
 
 		let mut rng = rand::thread_rng();
 		let radius = rng.gen_range(500.0..=1500.0);
@@ -75,7 +71,7 @@ impl PhysSim {
 		let target_trans = Vector2::new(obj.pos.x, obj.pos.y) + target_offset;
 		let target_pos = Isometry2::new(target_trans, angle);
 
-		ship.data.start_unland_to(ct, target_pos);
+		ship.data.start_unland_to(target_pos);
 
 		let r = self.wrapper.get_rigid_body_mut(ship.rigid_body).unwrap();
 		r.set_enabled(true);
@@ -87,7 +83,6 @@ impl PhysSim {
 
 	pub(super) fn collide_projectile_ship(
 		&mut self,
-		res: &mut PhysStepResources,
 		projectile_h: ColliderHandle,
 		ship_h: ColliderHandle,
 	) {
@@ -99,8 +94,11 @@ impl PhysSim {
 		let projectile = projectile.unwrap();
 		let ship = ship.unwrap();
 
-		let f = res.ct.get_faction(projectile.faction);
-		let r = f.relationships.get(&ship.data.get_faction()).unwrap();
+		let r = projectile
+			.faction
+			.relationships
+			.get(&ship.data.get_faction().index)
+			.unwrap();
 		let destory_projectile = match r {
 			Relationship::Hostile => match ship.data.get_state() {
 				ShipState::Flying { .. } => {
@@ -131,9 +129,8 @@ impl PhysSim {
 				None => {}
 				Some(x) => {
 					self.effects.push(PhysEffect::new(
-						&res.ct,
 						&mut self.wrapper,
-						*x,
+						x.clone(),
 						pos,
 						projectile.rigid_body,
 						Some(ship.rigid_body),
@@ -141,7 +138,7 @@ impl PhysSim {
 				}
 			};
 
-			projectile.destroy_silent(res, &mut self.new, &mut self.wrapper);
+			projectile.destroy_silent(&mut self.new, &mut self.wrapper);
 		}
 	}
 }
@@ -149,11 +146,9 @@ impl PhysSim {
 // Public methods
 impl PhysSim {
 	/// Create a new physics system
-	pub fn new(_ct: &Content, system: SystemHandle) -> Self {
+	pub fn new() -> Self {
 		Self {
-			_system: system,
 			wrapper: PhysWrapper::new(),
-
 			new: NewObjects::new(),
 			effects: Vec::new(),
 			projectiles: HashMap::new(),
@@ -164,19 +159,17 @@ impl PhysSim {
 	/// Add a ship to this physics system
 	pub fn add_ship(
 		&mut self,
-		ct: &Content,
-		handle: ShipHandle,
-		faction: FactionHandle,
+		ship: Arc<Ship>,
+		faction: Arc<Faction>,
 		personality: ShipPersonality,
 		position: Point2<f32>,
 	) -> PhysSimShipHandle {
-		let ship_content = ct.get_ship(handle);
-		let mut cl = ship_content.collider.0.clone();
+		let mut cl = ship.collider.0.clone();
 		// TODO: additonal ship mass from outfits and cargo
 
 		let rb = RigidBodyBuilder::dynamic()
-			.angular_damping(ship_content.angular_drag)
-			.linear_damping(ship_content.linear_drag)
+			.angular_damping(ship.angular_drag)
+			.linear_damping(ship.linear_drag)
 			.translation(Vector2::new(position.x, position.y))
 			.can_sleep(false);
 
@@ -190,14 +183,14 @@ impl PhysSim {
 
 		self.ships.insert(
 			collider,
-			PhysShip::new(ct, handle, personality, faction, ridid_body, collider),
+			PhysShip::new(ship, personality, faction, ridid_body, collider),
 		);
 
 		return PhysSimShipHandle(collider);
 	}
 
 	/// Update a player ship's controls
-	pub fn update_player_controls(&mut self, ct: &Content, player: &PlayerAgent) {
+	pub fn update_player_controls(&mut self, player: &PlayerAgent) {
 		if player.ship.is_none() {
 			return;
 		}
@@ -218,11 +211,13 @@ impl PhysSim {
 					ship_object.controls.thrust = player.input.pressed_thrust();
 
 					if player.input.pressed_land() {
+						if let Some(target) = player.selection.get_planet() {
 							ship_object.data.set_autopilot(ShipAutoPilot::Landing {
-							target: player.selection.get_planet().unwrap(),
+								target: target.clone(),
 							})
 						}
 					}
+				}
 
 				ShipState::Flying { .. } => {
 					// Any input automatically releases autopilot
@@ -237,7 +232,7 @@ impl PhysSim {
 
 				ShipState::Landed { .. } => {
 					if player.input.pressed_land() {
-						self.start_unland_ship(ct, player.ship.unwrap());
+						self.start_unland_ship(player.ship.unwrap());
 					}
 				}
 			};
@@ -271,7 +266,7 @@ impl PhysSim {
 				if p.is_none() || s.is_none() {
 					continue;
 				}
-				self.collide_projectile_ship(&mut res, a, b);
+				self.collide_projectile_ship(a, b);
 			}
 		}
 		res.timing.mark_physics_step();