Added configurable land dialog

content/sprite.toml

@@ -93,16 +93,15 @@ file = "ui/landscape-mask.png"
 
 [sprite."ui::planet::button"]
 start_at = "off:top"
-random_start_frame = false
 
 section.off.top = "stop"
 section.off.bot = "stop"
-section.off.timing.fps = 60
+section.off.timing.duration = 0.5
 section.off.frames = ["ui/planet-button-off.png"]
 
 section.on.top = "stop"
 section.on.bot = "stop"
-section.on.timing.fps = 60
+section.on.timing.duration = 0.5
 section.on.frames = ["ui/planet-button-on.png"]
 
 [sprite."effect::blaster"]

content/ui.toml

@@ -0,0 +1,18 @@
+[ui.landed]
+frame.sprite = "ui::planet"
+frame.pos = [0.0, 0.0]
+frame.dim = [800.0, 800.0]
+
+landscape.mask = "ui::landscapemask"
+landscape.pos = [32.0, 75.0]
+landscape.dim = [344.0, 173.0]
+landscape.loc_div = 512
+
+button.sprite = "ui::planet::button"
+button.pos = [356, 90]
+button.dim = [113.569, 20]
+button.loc_div = 512
+button.on_mouse_enter.edge = "on:top"
+button.on_mouse_enter.duration = 0.1
+button.on_mouse_leave.edge = "off:top"
+button.on_mouse_leave.duration = 0.1

crates/content/src/lib.rs

@@ -33,6 +33,7 @@ mod syntax {
 	use crate::{
 		config,
 		part::{effect, faction, outfit, ship, sprite, system},
+		ui,
 	};
 
 	#[derive(Debug, Deserialize)]
@@ -44,6 +45,7 @@ mod syntax {
 		pub faction: Option<HashMap<String, faction::syntax::Faction>>,
 		pub effect: Option<HashMap<String, effect::syntax::Effect>>,
 		pub config: Option<config::syntax::Config>,
+		pub ui: Option<ui::syntax::Ui>,
 	}
 
 	fn merge_hashmap<K, V>(
@@ -81,6 +83,7 @@ mod syntax {
 				faction: None,
 				effect: None,
 				config: None,
+				ui: None,
 			}
 		}
 
@@ -96,6 +99,7 @@ mod syntax {
 				.with_context(|| "while merging factions")?;
 			merge_hashmap(&mut self.effect, other.effect)
 				.with_context(|| "while merging effects")?;
+
 			if self.config.is_some() {
 				if other.config.is_some() {
 					bail!("invalid content dir, multiple config tables")
@@ -103,6 +107,15 @@ mod syntax {
 			} else {
 				self.config = other.config;
 			}
+
+			if self.ui.is_some() {
+				if other.ui.is_some() {
+					bail!("invalid content dir, multiple ui tables")
+				}
+			} else {
+				self.ui = other.ui;
+			}
+
 			return Ok(());
 		}
 	}
@@ -159,6 +172,7 @@ pub struct Content {
 	factions: Vec<Faction>,
 	effects: Vec<Effect>,
 	config: Config,
+	ui: Option<Ui>,
 }
 
 // Loading methods
@@ -227,6 +241,7 @@ impl Content {
 			factions: Vec::new(),
 			effects: Vec::new(),
 			sprite_index: HashMap::new(),
+			ui: None,
 		};
 
 		// TODO: enforce sprite and image limits
@@ -239,6 +254,7 @@ impl Content {
 				&mut content,
 			)?;
 		}
+
 		if root.effect.is_some() {
 			part::effect::Effect::build(
 				root.effect.take().unwrap(),
@@ -247,6 +263,10 @@ impl Content {
 			)?;
 		}
 
+		if root.ui.is_some() {
+			part::ui::Ui::build(root.ui.take().unwrap(), &mut build_context, &mut content)?;
+		}
+
 		// Order below this line does not matter
 		if root.ship.is_some() {
 			part::ship::Ship::build(root.ship.take().unwrap(), &mut build_context, &mut content)?;
@@ -353,4 +373,9 @@ impl Content {
 	pub fn get_config(&self) -> &Config {
 		return &self.config;
 	}
+
+	/// Get ui configuration
+	pub fn get_ui(&self) -> &Ui {
+		return self.ui.as_ref().unwrap();
+	}
 }

crates/content/src/part/mod.rs

@@ -8,6 +8,7 @@ pub(crate) mod outfitspace;
 pub(crate) mod ship;
 pub(crate) mod sprite;
 pub(crate) mod system;
+pub(crate) mod ui;
 
 pub use config::Config;
 pub use effect::*;
@@ -20,3 +21,4 @@ pub use ship::{
 };
 pub use sprite::*;
 pub use system::{System, SystemObject};
+pub use ui::*;

crates/content/src/part/ui.rs

@@ -0,0 +1,250 @@
+use anyhow::{Context, Result};
+use nalgebra::{Point2, Vector2};
+
+use crate::{handle::SpriteHandle, Content, ContentBuildContext, SectionEdge};
+
+pub(crate) mod syntax {
+	use crate::{sprite::syntax::SectionEdge, Content, ContentBuildContext};
+	use anyhow::{bail, Context, Result};
+	use nalgebra::{Point2, Vector2};
+	use serde::Deserialize;
+	// Raw serde syntax structs.
+	// These are never seen by code outside this crate.
+
+	#[derive(Debug, Deserialize)]
+	pub struct Ui {
+		pub landed: UiLanded,
+	}
+
+	#[derive(Debug, Deserialize)]
+	pub struct UiLanded {
+		pub frame: UiSprite,
+		pub landscape: UiSprite,
+		pub button: UiSprite,
+	}
+
+	#[derive(Debug, Deserialize)]
+	pub struct UiSprite {
+		pub sprite: Option<String>,
+		pub pos: [f32; 2],
+		pub dim: [f32; 2],
+		pub loc_div: Option<f32>,
+		pub mask: Option<String>,
+		pub on_mouse_enter: Option<EdgeSpec>,
+		pub on_mouse_leave: Option<EdgeSpec>,
+	}
+
+	#[derive(Debug, Deserialize)]
+	pub struct EdgeSpec {
+		pub edge: SectionEdge,
+		pub duration: f32,
+	}
+
+	impl UiSprite {
+		pub fn build(
+			self,
+			build_context: &ContentBuildContext,
+			ct: &Content,
+
+			// If true, this ui sprite will be positioned relative to another
+			is_child: bool,
+
+			// If true, fail if self.sprite is missing.
+			// If false, fail if self.sprite exists.
+			// This is false for sprites that may change---for example, planet landscapes
+			should_have_sprite: bool,
+		) -> Result<super::UiSpriteConfig> {
+			let sprite = {
+				if should_have_sprite {
+					if self.sprite.is_none() {
+						bail!("no sprite given, but expected a value")
+					}
+					match ct.sprite_index.get(self.sprite.as_ref().unwrap()) {
+						None => bail!("ui sprite `{}` doesn't exist", self.sprite.unwrap()),
+						Some(t) => Some(*t),
+					}
+				} else {
+					if self.sprite.is_some() {
+						bail!("got a sprite, but didn't expect one")
+					}
+					None
+				}
+			};
+
+			let mask = if let Some(mask) = self.mask {
+				Some(match ct.sprite_index.get(&mask) {
+					None => bail!("mask `{}` doesn't exist", mask),
+					Some(t) => *t,
+				})
+			} else {
+				None
+			};
+
+			let on_mouse_enter = {
+				if let Some(x) = self.on_mouse_enter {
+					if sprite.is_none() {
+						bail!("got `on_mouse_enter` on a ui element with no fixed sprite")
+					}
+
+					Some(
+						x.edge
+							.resolve_as_edge(sprite.unwrap(), build_context, x.duration)
+							.with_context(|| format!("failed to resolve mouse enter edge"))?,
+					)
+				} else {
+					None
+				}
+			};
+
+			let on_mouse_leave = {
+				if let Some(x) = self.on_mouse_leave {
+					if sprite.is_none() {
+						bail!("got `on_mouse_leave` on a ui element with no fixed sprite")
+					}
+
+					Some(
+						x.edge
+							.resolve_as_edge(sprite.unwrap(), build_context, x.duration)
+							.with_context(|| format!("failed to resolve mouse leave edge"))?,
+					)
+				} else {
+					None
+				}
+			};
+
+			let d = self.loc_div.unwrap_or(1.0);
+
+			let rect = {
+				if is_child {
+					super::UiSpriteRect::Relative {
+						pos: Point2::new(self.pos[0], self.pos[1]) / d,
+						dim: Vector2::new(self.dim[0], self.dim[1]) / d,
+					}
+				} else {
+					super::UiSpriteRect::Absolute {
+						pos: Point2::new(self.pos[0], self.pos[1]) / d,
+						dim: Vector2::new(self.dim[0], self.dim[1]) / d,
+					}
+				}
+			};
+
+			return Ok(super::UiSpriteConfig {
+				sprite,
+				mask,
+				on_mouse_enter,
+				on_mouse_leave,
+				rect,
+			});
+		}
+	}
+}
+
+/// UI Configuration
+#[derive(Debug, Clone)]
+pub struct Ui {
+	/// Landed interface frame
+	pub landed_frame: UiSpriteConfig,
+
+	/// Landed interface image
+	pub landed_landscape: UiSpriteConfig,
+
+	/// Test button
+	pub landed_button: UiSpriteConfig,
+}
+
+/// A UI sprite's position
+#[derive(Debug, Clone)]
+pub enum UiSpriteRect {
+	/// Positioning relative to a parent sprite
+	Relative {
+		// Note that both pos and dim include transparent pixels,
+		// of this sprite AND its parent.
+
+		// We use the top left corner here because that's how inkscape
+		// positions its objects. This makes it very easy to compute position.
+		// TODO: maybe add anchors here too?
+		/// The position of this sprite's northeast corner, relative to its parent's NE corner.
+		/// Positive X is right, positive Y is down.
+		pos: Point2<f32>,
+
+		/// This sprite's w and h, as a fraction of the parent's width and height.
+		dim: Vector2<f32>,
+	},
+
+	/// Absolute positioning
+	Absolute {
+		/// The position of the center of this sprite, in logical pixels,
+		/// with 0, 0 at the center of the screen
+		pos: Point2<f32>,
+
+		/// This sprite's w and h, in logical pixels.
+		dim: Vector2<f32>,
+	},
+}
+
+impl UiSpriteRect {
+	/// Get this rectangle's position
+	pub fn get_pos(&self) -> &Point2<f32> {
+		match self {
+			Self::Relative { pos, .. } => pos,
+			Self::Absolute { pos, .. } => pos,
+		}
+	}
+
+	/// Get this rectangle's dimensions
+	pub fn get_dim(&self) -> &Vector2<f32> {
+		match self {
+			Self::Relative { dim, .. } => dim,
+			Self::Absolute { dim, .. } => dim,
+		}
+	}
+}
+
+/// A single UI sprite instance
+#[derive(Debug, Clone)]
+pub struct UiSpriteConfig {
+	/// The sprite to show
+	pub sprite: Option<SpriteHandle>,
+
+	/// The mask to use
+	pub mask: Option<SpriteHandle>,
+
+	/// This sprite's position and size
+	pub rect: UiSpriteRect,
+
+	/// Animation edge to take when mouse enters this sprite
+	pub on_mouse_enter: Option<SectionEdge>,
+
+	/// Animation edge to take when mouse leaves this sprite
+	pub on_mouse_leave: Option<SectionEdge>,
+}
+
+impl crate::Build for Ui {
+	type InputSyntaxType = syntax::Ui;
+
+	fn build(
+		ui: Self::InputSyntaxType,
+		build_context: &mut ContentBuildContext,
+		ct: &mut Content,
+	) -> Result<()> {
+		ct.ui = Some(Ui {
+			landed_frame: ui
+				.landed
+				.frame
+				.build(build_context, ct, false, true)
+				.with_context(|| format!("in ui config (frame)"))?,
+			landed_landscape: ui
+				.landed
+				.landscape
+				.build(build_context, ct, true, false)
+				.with_context(|| format!("in ui config (image)"))?,
+			landed_button: ui
+				.landed
+				.button
+				.build(build_context, ct, true, true)
+				.with_context(|| format!("in ui config (button)"))?,
+		});
+
+		return Ok(());
+	}
+}

crates/content/src/spriteautomaton.rs

@@ -126,7 +126,12 @@ impl SpriteAutomaton {
 	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);
-		let last_direction = self.current_direction;
+
+		let last = match self.current_direction {
+			AnimDirection::Stop => self.next_texture,
+			AnimDirection::Down => self.next_texture,
+			AnimDirection::Up => self.last_texture,
+		};
 
 		match e {
 			SectionEdge::Stop => {
@@ -198,12 +203,6 @@ impl SpriteAutomaton {
 			}
 		}
 
-		let last = match last_direction {
-			AnimDirection::Stop => self.last_texture,
-			AnimDirection::Down => self.next_texture,
-			AnimDirection::Up => self.last_texture,
-		};
-
 		match self.current_direction {
 			AnimDirection::Stop => {
 				let current_section = sprite.get_section(self.current_section);

crates/galactica/src/main.rs

@@ -21,6 +21,7 @@ use nalgebra::Vector2;
 use std::{
 	fs,
 	path::{Path, PathBuf},
+	time::Instant,
 };
 use winit::{
 	event::{Event, KeyboardInput, WindowEvent},
@@ -132,6 +133,7 @@ fn try_main() -> Result<()> {
 	);
 
 	let mut phys_img = PhysImage::new();
+	let mut last_run = Instant::now();
 
 	event_loop.run(move |event, _, control_flow| {
 		match event {
@@ -143,9 +145,11 @@ fn try_main() -> Result<()> {
 					ct: &content,
 					phys_img: &phys_img,
 					player: &player,
+					time_since_last_run: last_run.elapsed().as_secs_f32(),
 					current_system: SystemHandle { index: 0 },
 					timing: game.get_timing().clone(),
 				};
+				last_run = Instant::now();
 
 				match gpu.render(render_input) {
 					Ok(_) => {}

crates/playeragent/src/inputstatus.rs

@@ -112,6 +112,11 @@ impl InputStatus {
 		self.v_scroll
 	}
 
+	/// Get the current mouse position
+	pub fn get_mouse_pos(&self) -> PhysicalPosition<f32> {
+		self.mouse_position
+	}
+
 	/// Is the player pressing the "turn left" key?
 	pub fn pressed_left(&self) -> bool {
 		self.key_left

crates/render/shaders/ui.wgsl

@@ -18,11 +18,15 @@ struct VertexInput {
 
 struct VertexOutput {
 	@builtin(position) position: vec4<f32>,
-	@location(0) texture_coords: vec2<f32>,
-	@location(1) texture_index: u32,
-	@location(2) mask_coords: vec2<f32>,
-	@location(3) mask_index: vec2<u32>,
-	@location(4) color_transform: vec4<f32>,
+	@location(0) tween: f32,
+	@location(1) texture_index_a: u32,
+	@location(2) texture_coords_a: vec2<f32>,
+	@location(3) texture_index_b: u32,
+	@location(4) texture_coords_b: vec2<f32>,
+	@location(5) color: vec4<f32>,
+
+	@location(6) mask_coords: vec2<f32>,
+	@location(7) mask_index: vec2<u32>,
 }
 
 @group(0) @binding(0)
@@ -80,31 +84,67 @@ fn vertex_main(
 	vertex: VertexInput,
 	instance: InstanceInput,
 ) -> VertexOutput {
+	var out: VertexOutput;
 
 	// TODO: this will break if we try to use texture 0.
 	// implement animations for ui sprites & fix that here.
 
-	let pos = transform_vertex(
+	// Pick texture size by the size of the visible texture
+	// (texture index 0 is special, it's the "hidden" texture)
+	if instance.texture_index.x == 0u && instance.texture_index.y == 0u {
+		out.position = vec4<f32>(0.0, 0.0, 0.0, 1.0);
+	} else if instance.texture_index.x == 0u {
+		out.position = transform_vertex(
+			instance,
+			vertex.position,
+			instance.texture_index.y,
+		);
+	} else if instance.texture_index.y == 0u {
+		out.position = transform_vertex(
 			instance,
 			vertex.position,
 			instance.texture_index.x,
 		);
+	} else {
+		out.position = transform_vertex(
+			instance,
+			vertex.position,
+			instance.texture_index.x,
+		);
+	}
 
-	var out: VertexOutput;
-	out.position = pos;
-	out.color_transform = instance.color_transform;
+	out.color = instance.color_transform;
+	out.tween = instance.texture_fade;
 
-
-	// TODO: function to get texture from sprite
-	// Pick texture frame
+	// Texture 0 is special, it's the empty texture
+	if instance.texture_index.x == 0u {
+		out.texture_index_a = 0u;
+		out.texture_coords_a = vec2(0.0, 0.0);
+	} else {
 		let t = global_atlas[instance.texture_index.x];
-	out.texture_index = u32(t.atlas_texture);
-	out.texture_coords = vec2(t.xpos, t.ypos);
+		out.texture_index_a = t.atlas_texture;
+		out.texture_coords_a = vec2(t.xpos, t.ypos);
 		if vertex.texture_coords.x == 1.0 {
-		out.texture_coords = vec2(out.texture_coords.x + t.width, out.texture_coords.y);
+			out.texture_coords_a = out.texture_coords_a + vec2(t.width, 0.0);
 		}
 		if vertex.texture_coords.y == 1.0 {
-		out.texture_coords = vec2(out.texture_coords.x, out.texture_coords.y + t.height);
+			out.texture_coords_a = out.texture_coords_a + vec2(0.0, t.height);
+		}
+	}
+
+	if instance.texture_index.y == 0u {
+		out.texture_index_b = u32(0u);
+		out.texture_coords_b = vec2(0.0, 0.0);
+	} else {
+		let b = global_atlas[instance.texture_index.y];
+		out.texture_index_b = u32(b.atlas_texture);
+		out.texture_coords_b = vec2(b.xpos, b.ypos);
+		if vertex.texture_coords.x == 1.0 {
+			out.texture_coords_b = out.texture_coords_b + vec2(b.width, 0.0);
+		}
+		if vertex.texture_coords.y == 1.0 {
+			out.texture_coords_b = out.texture_coords_b + vec2(0.0, b.height);
+		}
 	}
 
 	// Pick mask image if mask is enabled
@@ -142,12 +182,40 @@ fn fragment_main(in: VertexOutput) -> @location(0) vec4<f32> {
 		).a;
 	}
 
-	var color: vec4<f32> = textureSampleLevel(
-		texture_array[in.texture_index],
+	var texture_a: vec4<f32> = vec4(0.0, 0.0, 0.0, 0.0);
+	if !(
+		(in.texture_index_a == 0u) &&
+		(in.texture_coords_a.x == 0.0) &&
+		(in.texture_coords_a.y == 0.0)
+	) {
+		texture_a = textureSampleLevel(
+			texture_array[in.texture_index_a],
 			sampler_array[0],
-		in.texture_coords,
+			in.texture_coords_a,
 			0.0
-	).rgba * in.color_transform;
+		).rgba;
+	}
+
+
+	var texture_b: vec4<f32> = vec4(0.0, 0.0, 0.0, 0.0);
+	if !(
+		(in.texture_index_b == 0u) &&
+		(in.texture_coords_b.x == 0.0) &&
+		(in.texture_coords_b.y == 0.0)
+	) {
+		texture_b = textureSampleLevel(
+			texture_array[in.texture_index_b],
+			sampler_array[0],
+			in.texture_coords_b,
+			0.0
+		).rgba;
+	}
+
+	var color: vec4<f32> = mix(
+		texture_a,
+		texture_b,
+		in.tween
+	) * in.color;
 
 	// Apply mask and discard fully transparent pixels
 	color = vec4(color.rgb, color.a *mask);

crates/render/src/renderinput.rs

@@ -25,6 +25,9 @@ pub struct RenderInput<'a> {
 	/// The current time, in seconds
 	pub current_time: f32,
 
+	/// The amount of time that has passed since the last frame was drawn
+	pub time_since_last_run: f32,
+
 	/// Game content
 	pub ct: &'a Content,
 

crates/render/src/ui/planet.rs

@@ -10,7 +10,9 @@ pub(super) struct Planet {
 	// UI elements
 	planet_desc: UiTextArea,
 	planet_name: UiTextArea,
-	sprite: UiSprite,
+	frame: UiSprite,
+	landscape: UiSprite,
+	button: UiSprite,
 
 	/// What object we're displaying currently.
 	/// Whenever this changes, we need to reflow text.
@@ -21,32 +23,13 @@ pub(super) struct Planet {
 
 impl Planet {
 	pub fn new(ct: &Content, state: &mut RenderState) -> Self {
-		let mut sprite = UiSprite::new(
-			ct.get_sprite_handle("ui::planet"),
-			None,
-			SpriteRect {
-				pos: Point2::new(0.0, 0.0),
-				dim: Vector2::new(800.0, 800.0),
-			},
-		);
-
-		sprite.add_child_under(Box::new(UiSprite::new(
+		let frame = UiSprite::from(ct, &ct.get_ui().landed_frame);
+		let button = UiSprite::from(ct, &ct.get_ui().landed_button);
+		let landscape = UiSprite::from_with_sprite(
+			ct,
+			&ct.get_ui().landed_landscape,
 			ct.get_sprite_handle("ui::landscape::test"),
-			Some(ct.get_sprite_handle("ui::landscapemask")),
-			SpriteRect {
-				pos: Point2::new(32.0, 75.0) / 512.0,
-				dim: Vector2::new(344.0, 173.0) / 512.0,
-			},
-		)));
-
-		sprite.add_child_under(Box::new(UiSprite::new(
-			ct.get_sprite_handle("ui::planet::button"),
-			None,
-			SpriteRect {
-				pos: Point2::new(375.0, 90.0) / 512.0,
-				dim: Vector2::new(113.569, 20.0) / 512.0,
-			},
-		)));
+		);
 
 		let s = Self {
 			// height of element in logical pixels
@@ -55,9 +38,9 @@ impl Planet {
 			planet_desc: UiTextArea::new(
 				ct,
 				state,
-				ct.get_sprite_handle("ui::planet"),
+				frame.get_sprite(),
 				Point2::new(0.0, 0.0),
-				800.0,
+				frame.get_height(),
 				SpriteRect {
 					pos: Point2::new(25.831, 284.883) / 512.0,
 					dim: Vector2::new(433.140, 97.220) / 512.0,
@@ -70,9 +53,9 @@ impl Planet {
 			planet_name: UiTextArea::new(
 				ct,
 				state,
-				ct.get_sprite_handle("ui::planet"),
+				frame.get_sprite(),
 				Point2::new(0.0, 0.0),
-				800.0,
+				frame.get_height(),
 				SpriteRect {
 					pos: Point2::new(165.506, 82.0) / 512.0,
 					dim: Vector2::new(74.883, 17.0) / 512.0,
@@ -82,9 +65,9 @@ impl Planet {
 				Align::Center,
 			),
 
-			// TODO: use both dimensions,
-			// not just height
-			sprite,
+			frame,
+			landscape,
+			button,
 		};
 
 		return s;
@@ -134,8 +117,16 @@ impl Planet {
 			self.reflow(planet, state);
 		}
 
+		self.button.step(input, state);
+		self.landscape.step(input, state);
+		self.frame.step(input, state);
+
 		// Draw elements
-		self.sprite.push_to_buffer(input, state);
+		self.button
+			.push_to_buffer(input, state, Some(self.frame.get_rect(input)));
+		self.landscape
+			.push_to_buffer(input, state, Some(self.frame.get_rect(input)));
+		self.frame.push_to_buffer(input, state, None);
 	}
 
 	pub fn get_textarea(&self, input: &RenderInput, state: &RenderState) -> [TextArea; 2] {

crates/render/src/ui/util/mod.rs

@@ -9,6 +9,7 @@ use nalgebra::{Point2, Vector2};
 use crate::{RenderInput, RenderState};
 
 /// Represents a rectangular region inside a sprite.
+#[derive(Debug, Clone, Copy)]
 pub(crate) struct SpriteRect {
 	/// The position of the top-left corner of this rectangle, in fractional units.
 	/// (0.0 is left edge of sprite, 1.0 is right edge)
@@ -19,6 +20,18 @@ pub(crate) struct SpriteRect {
 	pub dim: Vector2<f32>,
 }
 
+impl SpriteRect {
+	/// Northeast corner of this rect
+	pub fn ne_corner(&self) -> Point2<f32> {
+		self.pos + Vector2::new(-self.dim.x, self.dim.y) / 2.0
+	}
+
+	/// Southwest corner of this rect
+	pub fn sw_corner(&self) -> Point2<f32> {
+		self.pos + Vector2::new(self.dim.x, -self.dim.y) / 2.0
+	}
+}
+
 pub(super) trait UiElement {
 	fn push_to_buffer_child(
 		&self,

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

@@ -1,119 +1,145 @@
-use galactica_content::SpriteHandle;
+use galactica_content::{Content, SectionEdge, SpriteAutomaton, SpriteHandle, UiSpriteConfig};
 use galactica_util::to_radians;
 use nalgebra::{Point2, Vector2};
 
-use super::{SpriteRect, UiElement};
+use super::SpriteRect;
 use crate::{vertexbuffer::types::UiInstance, PositionAnchor, RenderInput, RenderState};
 
 pub struct UiSprite {
-	sprite: SpriteHandle,
+	pub anim: SpriteAutomaton,
 	mask: Option<SpriteHandle>,
 
 	rect: SpriteRect,
-	children_under: Vec<Box<dyn UiElement>>,
-	children_above: Vec<Box<dyn UiElement>>,
+	has_mouse: bool,
+
+	on_mouse_enter: Option<SectionEdge>,
+	on_mouse_leave: Option<SectionEdge>,
 }
 
 impl UiSprite {
-	pub fn new(sprite: SpriteHandle, mask: Option<SpriteHandle>, rect: SpriteRect) -> Self {
+	pub fn from(ct: &Content, ui: &UiSpriteConfig) -> Self {
+		Self::from_with_sprite(ct, ui, ui.sprite.unwrap())
+	}
+
+	pub fn from_with_sprite(ct: &Content, ui: &UiSpriteConfig, sprite: SpriteHandle) -> Self {
+		if ui.sprite.is_none() {
+			unreachable!("called `UiSprite.from()` on a UiSprite with a None sprite!")
+		}
+
 		return Self {
-			sprite,
-			mask,
-			rect,
-			children_under: Vec::new(),
-			children_above: Vec::new(),
+			anim: SpriteAutomaton::new(ct, sprite),
+			mask: ui.mask,
+			rect: SpriteRect {
+				pos: *ui.rect.get_pos(),
+				dim: *ui.rect.get_dim(),
+			},
+			has_mouse: false,
+			on_mouse_enter: ui.on_mouse_enter,
+			on_mouse_leave: ui.on_mouse_leave,
 		};
 	}
 
-	/// Add a child under this sprite
-	pub fn add_child_under(&mut self, child: Box<dyn UiElement>) {
-		self.children_under.push(child);
+	pub fn step(&mut self, input: &RenderInput, state: &RenderState) {
+		if self.contains_mouse(input, state, Some(self.get_rect(input)))
+			&& !self.has_mouse
+			&& self.on_mouse_enter.is_some()
+		{
+			self.has_mouse = true;
+			self.anim.jump_to(input.ct, self.on_mouse_enter.unwrap())
 		}
 
-	/// Add a child above this sprite
-	//pub fn add_child_above(&mut self, child: Box<dyn UiElement>) {
-	//	self.children_above.push(child);
-	//}
+		if !self.contains_mouse(input, state, Some(self.get_rect(input)))
+			&& self.has_mouse
+			&& self.on_mouse_leave.is_some()
+		{
+			self.has_mouse = false;
+			self.anim.jump_to(input.ct, self.on_mouse_leave.unwrap())
+		}
 
-	/// Add this image to the gpu sprite buffer
-	pub fn push_to_buffer(&self, input: &RenderInput, state: &mut RenderState) {
+		self.anim.step(input.ct, input.time_since_last_run);
+	}
+
+	pub fn contains_mouse(
+		&self,
+		input: &RenderInput,
+		state: &RenderState,
+		parent: Option<SpriteRect>,
+	) -> bool {
+		let rect = self.get_relative_rect(input, parent);
+
+		let fac = state.window.scale_factor() as f32;
+		let window_size = Vector2::new(
+			state.window_size.width as f32 / fac,
+			state.window_size.height as f32 / fac,
+		);
+
+		let pos = input.player.input.get_mouse_pos();
+		let mouse_pos = Vector2::new(
+			pos.x / fac - window_size.x / 2.0,
+			window_size.y / 2.0 - pos.y / fac,
+		);
+
+		let ne = rect.ne_corner();
+		let sw = rect.sw_corner();
+		return (mouse_pos.y < ne.y && mouse_pos.y > sw.y)
+			&& (mouse_pos.x > ne.x && mouse_pos.x < sw.x);
+	}
+
+	pub fn get_rect(&self, input: &RenderInput) -> SpriteRect {
 		let pos = Point2::new(self.rect.pos.x, self.rect.pos.y);
 		let dim = Vector2::new(
-			self.rect.dim.y * input.ct.get_sprite(self.sprite).aspect,
+			self.rect.dim.y * input.ct.get_sprite(self.anim.get_sprite()).aspect,
 			self.rect.dim.y,
 		);
 
-		for c in &self.children_under {
-			c.push_to_buffer_child(input, state, pos, dim);
+		return SpriteRect { dim, pos };
 	}
 
-		let sprite = input.ct.get_sprite(self.sprite);
-		let texture_a = sprite.get_first_frame(); // ANIMATE
+	pub fn get_relative_rect(&self, input: &RenderInput, parent: Option<SpriteRect>) -> SpriteRect {
+		if let Some(parent) = parent {
+			let zero = Point2::new(
+				parent.pos.x - (parent.dim.x / 2.0),
+				parent.pos.y + (parent.dim.y / 2.0),
+			);
 
-		state.push_ui_buffer(UiInstance {
-			anchor: PositionAnchor::CC.to_int(),
-			position: pos.into(),
-			angle: to_radians(90.0),
-			size: dim.y,
-			color: [1.0, 1.0, 1.0, 1.0],
-			texture_index: [texture_a, texture_a],
-			texture_fade: 1.0,
-			mask_index: self
-				.mask
-				.map(|x| {
-					let sprite = input.ct.get_sprite(x);
-					let texture_b = sprite.get_first_frame(); // ANIMATE
-					[1, texture_b]
-				})
-				.unwrap_or([0, 0]),
-		});
+			let mut pos = zero
+				+ Vector2::new(
+					self.rect.pos.x * parent.dim.x,
+					-self.rect.pos.y * parent.dim.y,
+				);
+			let dim = Vector2::new(
+				self.rect.dim.x * parent.dim.x,
+				self.rect.dim.y * parent.dim.y,
+			);
 
-		for c in &self.children_above {
-			c.push_to_buffer_child(input, state, pos, dim);
-		}
+			pos += Vector2::new(dim.x, -dim.y) / 2.0;
+
+			return SpriteRect { dim, pos };
+		} else {
+			return self.get_rect(input);
 		}
 	}
 
-impl UiElement for UiSprite {
-	/// Add this image to the gpu sprite buffer,
-	/// as a child of another sprite
-	fn push_to_buffer_child(
+	/// Add this image to the gpu sprite buffer
+	pub fn push_to_buffer(
 		&self,
 		input: &RenderInput,
 		state: &mut RenderState,
-		parent_pos: Point2<f32>,
-		parent_size: Vector2<f32>,
+		parent: Option<SpriteRect>,
 	) {
-		let zero = Point2::new(
-			parent_pos.x - (parent_size.x / 2.0),
-			parent_pos.y + (parent_size.y / 2.0),
-		);
-
-		let pos = zero
-			+ Vector2::new(
-				self.rect.pos.x * parent_size.x,
-				-self.rect.pos.y * parent_size.y,
-			);
-		let dim = Vector2::new(
-			self.rect.dim.x * parent_size.x,
-			self.rect.dim.y * parent_size.y,
-		);
-
-		for c in &self.children_under {
-			c.push_to_buffer_child(input, state, pos, dim);
-		}
-
-		let sprite = input.ct.get_sprite(self.sprite);
-		let texture_a = sprite.get_first_frame(); // ANIMATE
+		let rect = self.get_relative_rect(input, parent.clone());
 
+		// TODO: use both dimensions,
+		// not just height
+		let anim_state = self.anim.get_texture_idx();
 		state.push_ui_buffer(UiInstance {
-			anchor: PositionAnchor::CNw.to_int(),
-			position: pos.into(),
+			anchor: PositionAnchor::CC.to_int(),
+			position: rect.pos.into(),
 			angle: to_radians(90.0),
-			size: dim.y,
+			size: rect.dim.y,
 			color: [1.0, 1.0, 1.0, 1.0],
-			texture_index: [texture_a, texture_a],
-			texture_fade: 1.0,
+			texture_index: anim_state.texture_index(),
+			texture_fade: anim_state.fade,
 			mask_index: self
 				.mask
 				.map(|x| {
@@ -123,9 +149,13 @@ impl UiElement for UiSprite {
 				})
 				.unwrap_or([0, 0]),
 		});
+	}
 
-		for c in &self.children_above {
-			c.push_to_buffer_child(input, state, pos, dim);
-		}
+	pub fn get_sprite(&self) -> SpriteHandle {
+		self.anim.get_sprite()
+	}
+
+	pub fn get_height(&self) -> f32 {
+		self.rect.dim.y
 	}
 }