Added shields & indicator

content/outfits.toml

@@ -5,3 +5,12 @@ space.engine = 20
 engine.thrust = 100
 engine.flare_sprite = "flare::ion"
 steering.power = 20
+
+
+[outfit."shield generator"]
+
+space.outfit = 5
+
+shield.generation = 10
+shield.strength = 500
+shield.delay = 2.0

crates/content/src/part/outfit.rs

@@ -2,7 +2,7 @@ use std::collections::HashMap;
 
 use anyhow::{bail, Result};
 
-use crate::{handle::SpriteHandle, Content, ContentBuildContext, OutfitSpace};
+use crate::{handle::SpriteHandle, Content, ContentBuildContext, OutfitHandle, OutfitSpace};
 
 pub(crate) mod syntax {
 	use crate::part::outfitspace;
@@ -15,6 +15,15 @@ pub(crate) mod syntax {
 		pub engine: Option<Engine>,
 		pub steering: Option<Steering>,
 		pub space: outfitspace::syntax::OutfitSpace,
+		pub shield: Option<Shield>,
+	}
+
+	#[derive(Debug, Deserialize)]
+	pub struct Shield {
+		pub strength: Option<f32>,
+		pub generation: Option<f32>,
+		pub delay: Option<f32>,
+		// more stats: permiability, shield armor, ramp, etc
 	}
 
 	#[derive(Debug, Deserialize)]
@@ -32,6 +41,12 @@ pub(crate) mod syntax {
 /// Represents an outfit that may be attached to a ship.
 #[derive(Debug, Clone)]
 pub struct Outfit {
+	/// How much space this outfit requires
+	pub space: OutfitSpace,
+
+	/// This outfit's handle
+	pub handle: OutfitHandle,
+
 	/// The name of this outfit
 	pub name: String,
 
@@ -46,8 +61,14 @@ pub struct Outfit {
 	/// engine points.
 	pub engine_flare_sprite: Option<SpriteHandle>,
 
-	/// How much space this outfit requires
-	pub space: OutfitSpace,
+	/// Shield hit points
+	pub shield_strength: f32,
+
+	/// Shield regeneration rate, per second
+	pub shield_generation: f32,
+
+	/// Wait this many seconds after taking damage before regenerating shields
+	pub shield_delay: f32,
 }
 
 impl crate::Build for Outfit {
@@ -59,12 +80,20 @@ impl crate::Build for Outfit {
 		content: &mut Content,
 	) -> Result<()> {
 		for (outfit_name, outfit) in outfits {
+			let handle = OutfitHandle {
+				index: content.outfits.len(),
+			};
+
 			let mut o = Self {
+				handle,
 				name: outfit_name.clone(),
 				engine_thrust: 0.0,
 				steer_power: 0.0,
 				engine_flare_sprite: None,
 				space: OutfitSpace::from(outfit.space),
+				shield_delay: 0.0,
+				shield_generation: 0.0,
+				shield_strength: 0.0,
 			};
 
 			// Engine stats
@@ -86,6 +115,13 @@ impl crate::Build for Outfit {
 				o.steer_power = steer.power;
 			}
 
+			// Shield stats
+			if let Some(shield) = outfit.shield {
+				o.shield_delay = shield.delay.unwrap_or(0.0);
+				o.shield_generation = shield.generation.unwrap_or(0.0);
+				o.shield_strength = shield.strength.unwrap_or(0.0);
+			}
+
 			content.outfits.push(o);
 		}
 

crates/galactica/src/game.rs

@@ -38,6 +38,7 @@ impl Game {
 
 		let mut o1 = object::OutfitSet::new(ss);
 		o1.add(&ct, content::OutfitHandle { index: 0 });
+		o1.add(&ct, content::OutfitHandle { index: 1 });
 		o1.add_gun(&ct, content::GunHandle { index: 0 });
 		o1.add_gun(&ct, content::GunHandle { index: 0 });
 		o1.add_gun(&ct, content::GunHandle { index: 0 });
@@ -64,7 +65,7 @@ impl Game {
 
 		let mut o1 = object::OutfitSet::new(ss);
 		o1.add(&ct, content::OutfitHandle { index: 0 });
-		//o1.add_gun(&ct, content::GunHandle { index: 0 });
+		o1.add_gun(&ct, content::GunHandle { index: 0 });
 
 		let s = object::Ship::new(
 			&ct,

crates/gameobject/src/outfits.rs

@@ -1,4 +1,4 @@
-use content::{EnginePoint, SpriteHandle};
+use content::{EnginePoint, OutfitHandle, SpriteHandle};
 use galactica_content as content;
 
 /// Represents a gun attached to a specific ship at a certain gunpoint.
@@ -33,6 +33,10 @@ pub struct OutfitStatSum {
 	pub engine_thrust: f32,
 	pub steer_power: f32,
 	pub engine_flare_sprites: Vec<content::SpriteHandle>,
+	pub shield_strength: f32,
+
+	// Delay, generation
+	pub shield_generators: Vec<(OutfitHandle, f32, f32)>,
 }
 
 impl OutfitStatSum {
@@ -41,6 +45,8 @@ impl OutfitStatSum {
 			engine_thrust: 0.0,
 			steer_power: 0.0,
 			engine_flare_sprites: Vec::new(),
+			shield_strength: 0.0,
+			shield_generators: Vec::new(),
 		}
 	}
 
@@ -50,6 +56,9 @@ impl OutfitStatSum {
 			self.engine_flare_sprites.push(t);
 		};
 		self.steer_power += o.steer_power;
+		self.shield_strength += o.shield_strength;
+		self.shield_generators
+			.push((o.handle, o.shield_delay, o.shield_generation));
 	}
 
 	pub fn remove(&mut self, o: &content::Outfit) {
@@ -63,6 +72,16 @@ impl OutfitStatSum {
 			);
 		}
 		self.steer_power -= o.steer_power;
+		self.shield_strength -= o.shield_strength;
+		{
+			// Assume such an index exists
+			let index = self
+				.shield_generators
+				.iter()
+				.position(|(h, _, _)| *h == o.handle)
+				.unwrap();
+			self.shield_generators.remove(index);
+		}
 	}
 }
 

crates/gameobject/src/ship.rs

@@ -1,4 +1,5 @@
 use rand::Rng;
+use std::time::Instant;
 
 use crate::{OutfitSet, Projectile};
 use galactica_content as content;
@@ -8,10 +9,12 @@ pub struct Ship {
 	pub handle: content::ShipHandle,
 	pub faction: content::FactionHandle,
 	pub outfits: OutfitSet,
+	pub last_hit: Instant,
 
 	// TODO: unified ship stats struct, like space
 	// TODO: unified outfit stats struct: check
 	pub hull: f32,
+	pub shields: f32,
 }
 
 impl Ship {
@@ -22,11 +25,14 @@ impl Ship {
 		outfits: OutfitSet,
 	) -> Self {
 		let s = ct.get_ship(handle);
+		let shields = outfits.stat_sum().shield_strength;
 		Ship {
 			handle: handle,
 			faction,
 			outfits,
 			hull: s.hull,
+			shields,
+			last_hit: Instant::now(),
 		}
 	}
 
@@ -41,10 +47,19 @@ impl Ship {
 		let r = f.relationships.get(&p.faction).unwrap();
 		match r {
 			content::Relationship::Hostile => {
+				let mut d = p.content.damage;
 				if self.is_dead() {
 					return true;
 				}
-				self.hull -= p.content.damage;
+				if self.shields >= d {
+					self.shields -= d
+				} else {
+					d -= self.shields;
+					self.shields = 0.0;
+					self.hull -= d;
+				}
+				self.last_hit = Instant::now();
+
 				return true;
 			}
 			_ => return false,
@@ -79,4 +94,19 @@ impl Ship {
 			})
 			.collect()
 	}
+
+	pub fn step(&mut self, t: f32) {
+		let time_since = self.last_hit.elapsed().as_secs_f32();
+		if self.shields != self.outfits.stat_sum().shield_strength {
+			for (_, d, g) in &self.outfits.stat_sum().shield_generators {
+				if time_since >= *d {
+					self.shields += g * t;
+					if self.shields > self.outfits.stat_sum().shield_strength {
+						self.shields = self.outfits.stat_sum().shield_strength;
+						break;
+					}
+				}
+			}
+		}
+	}
 }

crates/render/shaders/radialbar.wgsl

@@ -65,12 +65,12 @@ fn fragment_main(in: VertexOutput) -> @location(0) vec4<f32> {
 		global_data.window_scale.x
 	) - in.center;
 
-	let bar_width = in.stroke;                                // Width of filled bar
-	let bar_radius = in.diameter / 2.0 - bar_width / 2.0;     // Middle radius of the bar
-	let angle = in.angle - floor(in.angle / 6.283) * 6.28318; // Sanely handle large angles (fmod(angle, 2pi))
-	let zero_vector = vec2(0.0, 1.0);                         // Draw bar clockwise from this vector
-	let frag_radius = distance(vec2(0.0, 0.0), p);            // Radius of this fragment
-	let feather = 2.0;                                        // Size of feather, in logical pixels
+	let bar_width = in.stroke;                            // Width of filled bar
+	let bar_radius = in.diameter / 2.0 - bar_width / 2.0; // Middle radius of the bar
+	let angle = clamp(0.001, 6.28318 + 0.001, in.angle);  // Sanely handle extreme angles
+	let zero_vector = vec2(0.0, 1.0);                     // Draw bar clockwise from this vector
+	let frag_radius = distance(vec2(0.0, 0.0), p);        // Radius of this fragment
+	let feather = 2.0;                                    // Size of feather, in logical pixels
 	
 	// Clockwise angle between zero_vector and fragment location
 	let frag_angle = atan2(

crates/render/src/gpustate/hud.rs

@@ -1,5 +1,7 @@
 //! GPUState routines for drawing HUD elements
 
+use std::f32::consts::TAU;
+
 use cgmath::{Deg, InnerSpace, Point2, Rad, Vector2};
 use galactica_world::util;
 
@@ -264,6 +266,12 @@ impl GPUState {
 			panic!("UI limit exceeded!")
 		}
 
+		let (s, _) = state.world.get_ship_body(*state.player).unwrap();
+		let max_shields = s.ship.outfits.stat_sum().shield_strength;
+		let current_shields = s.ship.shields;
+		let current_hull = s.ship.hull;
+		let max_hull = state.content.get_ship(s.ship.handle).hull;
+
 		self.queue.write_buffer(
 			&self.vertex_buffers.ui.instances,
 			UiInstance::SIZE * self.vertex_buffers.ui_counter,
@@ -286,7 +294,6 @@ impl GPUState {
 			panic!("Radialbar limit exceeded!")
 		}
 
-		// TODO: counters for each buffer, remove arrays
 		self.queue.write_buffer(
 			&self.vertex_buffers.radialbar.instances,
 			RadialBarInstance::SIZE * self.vertex_buffers.radialbar_counter,
@@ -296,7 +303,7 @@ impl GPUState {
 				diameter: 182.0,
 				stroke: 5.0,
 				color: [0.3, 0.6, 0.8, 1.0],
-				angle: -state.current_time / 2.0,
+				angle: (current_shields / max_shields) * TAU,
 			}]),
 		);
 		self.vertex_buffers.radialbar_counter += 1;
@@ -310,7 +317,7 @@ impl GPUState {
 				diameter: 166.0,
 				stroke: 5.0,
 				color: [0.8, 0.7, 0.5, 1.0],
-				angle: state.current_time / 5.0,
+				angle: (current_hull / max_hull) * TAU,
 			}]),
 		);
 		self.vertex_buffers.radialbar_counter += 1;

crates/render/src/gpustate/world.rs

@@ -85,7 +85,7 @@ impl GPUState {
 		self.vertex_buffers.object_counter += 1;
 
 		// Draw engine flares if necessary
-		if s.controls.thrust {
+		if s.controls.thrust && !s.ship.is_dead() {
 			for f in s.ship.outfits.iter_enginepoints() {
 				let flare = match s.ship.outfits.get_flare_sprite() {
 					None => continue,

crates/world/src/objects/ship.rs

@@ -216,6 +216,8 @@ impl ShipWorldObject {
 				.step(&self.ship, ct, particles, rigid_body, collider, t);
 		}
 
+		self.ship.step(t);
+
 		let ship_content = ct.get_ship(self.ship.handle);
 		let ship_pos = util::rigidbody_position(&rigid_body);
 		let ship_rot = util::rigidbody_rotation(rigid_body);