Renames and minor cleanup

crates/content/src/part/gun.rs

@@ -170,7 +170,10 @@ impl crate::Build for Gun {
 					lifetime: gun.projectile.lifetime,
 					lifetime_rng: gun.projectile.lifetime_rng,
 					damage: gun.projectile.damage,
-					angle_rng: Deg(gun.projectile.angle_rng),
+
+					// Divide by 2, so the angle matches the angle of the fire cone.
+					// This should ALWAYS be done in the content parser.
+					angle_rng: Deg(gun.projectile.angle_rng / 2.0),
 					impact_effect,
 					expire_effect,
 					collider: gun.projectile.collider,

crates/content/src/part/sprite.rs

@@ -35,13 +35,20 @@ pub(crate) mod syntax {
 	}
 
 	#[derive(Debug, Deserialize)]
-	pub enum Timing {
+	pub enum TimingVariant {
 		#[serde(rename = "duration")]
 		Duration(f32),
 
 		#[serde(rename = "fps")]
 		Fps(f32),
 	}
+
+	#[derive(Debug, Deserialize)]
+	pub struct Timing {
+		#[serde(flatten)]
+		pub variant: TimingVariant,
+		//pub uniform_rng: Option<f32>,
+	}
 }
 
 /// How to replay a texture's animation
@@ -86,8 +93,11 @@ pub struct Sprite {
 	pub frames: Vec<PathBuf>,
 
 	/// The speed of this sprite's animation.
-	/// unanimated sprites have zero fps.
+	/// This is zero for unanimate sprites.
-	pub fps: f32,
+	pub frame_duration: f32,
+
+	/// All frames will be sped up/slowed by this factor.
+	//pub frame_uniform_rng: f32,
 
 	/// How to replay this sprite's animation
 	pub repeat: RepeatMode,
@@ -145,7 +155,8 @@ impl crate::Build for Sprite {
 					content.sprites.push(Self {
 						name: sprite_name,
 						frames: vec![t.file],
-						fps: 0.0,
+						frame_duration: 0.0,
+						//frame_uniform_rng: 0.0,
 						handle: h,
 						repeat: RepeatMode::Once,
 						aspect: dim.0 as f32 / dim.1 as f32,
@@ -193,16 +204,17 @@ impl crate::Build for Sprite {
 						unreachable!("Starfield texture may not be animated")
 					}
 
-					let fps = match t.timing {
+					let frame_duration = match t.timing.variant {
-						syntax::Timing::Duration(d) => d / t.frames.len() as f32,
+						syntax::TimingVariant::Duration(d) => d / t.frames.len() as f32,
-						syntax::Timing::Fps(f) => 1.0 / f,
+						syntax::TimingVariant::Fps(f) => 1.0 / f,
 					};
 
 					content.sprite_index.insert(sprite_name.clone(), h);
 					content.sprites.push(Self {
 						name: sprite_name,
 						frames: t.frames,
-						fps,
+						frame_duration,
+						//frame_uniform_rng: t.timing.uniform_rng.unwrap_or(0.0),
 						handle: h,
 						repeat: t.repeat,
 						aspect: dim.0 as f32 / dim.1 as f32,

crates/gameobject/src/ship.rs

@@ -63,13 +63,15 @@ impl Ship {
 				let mut rng = rand::thread_rng();
 				g.cooldown = g.kind.rate + &rng.gen_range(-g.kind.rate_rng..=g.kind.rate_rng);
 
+				let lifetime = g.kind.projectile.lifetime
+					+ rng.gen_range(
+						-g.kind.projectile.lifetime_rng..=g.kind.projectile.lifetime_rng,
+					);
+
 				(
 					Projectile {
 						content: g.kind.projectile.clone(),
-						lifetime: g.kind.projectile.lifetime
+						lifetime: 0f32.max(lifetime),
-							+ rng.gen_range(
-								-g.kind.projectile.lifetime_rng..=g.kind.projectile.lifetime_rng,
-							),
 						faction: self.faction,
 					},
 					p.clone(),

crates/render/shaders/include/animate.wgsl

@@ -3,20 +3,20 @@ fn animate(sprite_index: u32, age: f32, offset: f32) -> f32 {
 
 	let len = global_sprites[sprite_index].frame_count;
 	let rep = global_sprites[sprite_index].repeatmode;
-	let fps = global_sprites[sprite_index].fps;
+	let frame_duration = global_sprites[sprite_index].frame_duration;
 	var frame: f32 = 0.0;
 
 	// Once
 	if rep == u32(1) {
 
 		frame = min(
-			age / fps + offset,
+			age / frame_duration + offset,
 			f32(len) - 1.0
 		);
 
 	// Reverse
 	} else if rep == u32(2) {
-		let x = age / fps + offset;
+		let x = age / frame_duration + offset;
 		let m = f32(len) * 2.0 - 1.0;
 		// x fmod m
 		frame = x - floor(x / m) * m;
@@ -32,7 +32,7 @@ fn animate(sprite_index: u32, age: f32, offset: f32) -> f32 {
 
 	// Repeat (default)
 	} else {
-		let x = age / fps + offset;
+		let x = age / frame_duration + offset;
 		let m = f32(len);
 		frame = x - floor(x / m) * m;
 	}

crates/render/src/globaluniform/globaluniform.rs

@@ -83,7 +83,7 @@ impl GlobalUniform {
 				frame_count: u32,
 				repeatmode: u32,
 				aspect: f32,
-				fps: f32,
+				frame_duration: f32,
 				first_frame: u32,
 
 				padding_a: f32,

crates/render/src/globaluniform/sprite.rs

@@ -10,7 +10,7 @@ pub struct SpriteData {
 	pub frame_count: u32,
 	pub repeatmode: u32,
 	pub aspect: f32,
-	pub fps: f32,
+	pub frame_duration: f32,
 
 	// Index of first frame in ImageLocationArray
 	pub first_frame: u32,

crates/render/src/texturearray.rs

@@ -77,7 +77,7 @@ impl RawTexture {
 pub struct Texture {
 	pub index: u32,          // Index in texture array
 	pub len: u32,            // Number of frames
-	pub fps: f32,    // Frames per second
+	pub frame_duration: f32, // Frames per second
 	pub aspect: f32,         // width / height
 	pub repeat: u32,         // How to re-play this texture
 	pub location: Vec<SpriteAtlasImage>,
@@ -120,7 +120,7 @@ impl TextureArray {
 				frame_count: t.frames.len() as u32,
 				repeatmode: t.repeat.as_int(),
 				aspect: t.aspect,
-				fps: t.fps,
+				frame_duration: t.frame_duration,
 				first_frame: image_counter,
 				_padding: Default::default(),
 			};

crates/world/src/objects/projectile.rs

@@ -1,4 +1,5 @@
 use cgmath::{Deg, InnerSpace, Point3, Vector2};
+use rand::Rng;
 use rapier2d::{
 	dynamics::{RigidBody, RigidBodyHandle},
 	geometry::ColliderHandle,
@@ -19,6 +20,9 @@ pub struct ProjectileWorldObject {
 
 	/// This projectile's collider
 	pub collider: ColliderHandle,
+
+	/// This projectile's size variation
+	pub size_rng: f32,
 }
 
 impl ProjectileWorldObject {
@@ -28,10 +32,13 @@ impl ProjectileWorldObject {
 		rigid_body: RigidBodyHandle,
 		collider: ColliderHandle,
 	) -> Self {
+		let mut rng = rand::thread_rng();
+		let size_rng = projectile.content.size_rng;
 		ProjectileWorldObject {
 			rigid_body,
 			collider,
 			projectile,
+			size_rng: rng.gen_range(-size_rng..=size_rng),
 		}
 	}
 
@@ -50,7 +57,7 @@ impl ProjectileWorldObject {
 				y: pos.y,
 				z: 1.0,
 			},
-			size: self.projectile.content.size,
+			size: 0f32.max(self.projectile.content.size + self.size_rng),
 			angle: -ang,
 			children: None,
 		}