Merge branch 'master' of https://git.txmn.tk/tuxmain/bevyjam into nixon-main

Cargo.lock

@@ -3754,14 +3754,13 @@ checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
 [[package]]
 name = "wgpu"
 version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/mockersf/wgpu/?branch=unconditional-clear-workaround#a703a78644bc277f8b93870297bb3734e25f2be9"
-checksum = "277e967bf8b7820a76852645a6bce8bbd31c32fda2042e82d8e3ea75fda8892d"
 dependencies = [
  "arrayvec",
  "js-sys",
  "log",
  "naga",
- "parking_lot 0.12.1",
+ "parking_lot 0.11.2",
  "raw-window-handle 0.4.3",
  "smallvec",
  "wasm-bindgen",
@@ -3775,8 +3774,7 @@ dependencies = [
 [[package]]
 name = "wgpu-core"
 version = "0.13.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/mockersf/wgpu/?branch=unconditional-clear-workaround#a703a78644bc277f8b93870297bb3734e25f2be9"
-checksum = "89b92788dec9d0c1bed849a1b83f01b2ee12819bf04a79c90f68e4173f7b5ba2"
 dependencies = [
  "arrayvec",
  "bit-vec",
@@ -3787,7 +3785,7 @@ dependencies = [
  "fxhash",
  "log",
  "naga",
- "parking_lot 0.12.1",
+ "parking_lot 0.11.2",
  "profiling",
  "raw-window-handle 0.4.3",
  "smallvec",
@@ -3800,8 +3798,7 @@ dependencies = [
 [[package]]
 name = "wgpu-hal"
 version = "0.13.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/mockersf/wgpu/?branch=unconditional-clear-workaround#a703a78644bc277f8b93870297bb3734e25f2be9"
-checksum = "20cbdfc3d0637dba3d5536b93adef3d26023a0b96f0e1ee5ee9560a401d9f646"
 dependencies = [
  "android_system_properties",
  "arrayvec",
@@ -3824,7 +3821,7 @@ dependencies = [
  "metal",
  "naga",
  "objc",
- "parking_lot 0.12.1",
+ "parking_lot 0.11.2",
  "profiling",
  "range-alloc",
  "raw-window-handle 0.4.3",
@@ -3839,8 +3836,7 @@ dependencies = [
 [[package]]
 name = "wgpu-types"
 version = "0.13.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/mockersf/wgpu/?branch=unconditional-clear-workaround#a703a78644bc277f8b93870297bb3734e25f2be9"
-checksum = "1f762cbc08e1a51389859cf9c199c7aef544789cf3510889aab12c607f701604"
 dependencies = [
  "bitflags",
 ]

Cargo.toml

@@ -28,3 +28,6 @@ cpal = { version = "0.14.0", features = ["wasm-bindgen"] }
 
 [profile.dev.package."*"]
 opt-level = 3
+
+[patch.crates-io]
+wgpu = { git = "https://github.com/mockersf/wgpu/", branch = "unconditional-clear-workaround" }

README.md

@@ -13,11 +13,13 @@
 * more filters
 * despawn black characters
 * despawn character when too far
-* level design
+* more levels
 * (?) multiplayer
 * more audio
 * "jumpable" component to avoid jumping on sensors
-* bug: in level2, move the blue character to win, then reset. The characters are lighter than expected.
+* bug: in level2, move the blue character to win, then reset. The characters are lighter than expected. (also level 4)
+* redshift warning
+* itchio test
 
 ## Build
 
@@ -55,6 +57,8 @@ Edit the level `N: u32` with the command `bevyjam <N> e`.
 
 * **Select**: left click to select, click in void to deselect, CTRL+click to select many, CTRL+A to select all
 * **Move selection**: arrows to move one step, Shift+arrows to move continuously
+* **Delete selection**: delete
+* **Add objects**: P=platform, C=character, A=absorbing filter, R=rotating filter, M=melty platform
 * **Move camera**: CTRL+arrows
 * **Save**: CTRL+S
 

assets/game.levels.json

@@ -54,6 +54,7 @@
       ],
       "absorbing_filters": [],
       "rotating_filters": [],
+      "melty_platforms": [],
       "texts": [
         {
           "pos": [
@@ -129,6 +130,7 @@
       ],
       "absorbing_filters": [],
       "rotating_filters": [],
+      "melty_platforms": [],
       "texts": [
         {
           "pos": [
@@ -145,7 +147,7 @@
       "characters": [
         {
           "pos": [
-            -128.0,
+            -160.0,
             -192.0
           ],
           "color": [
@@ -157,7 +159,7 @@
         },
         {
           "pos": [
-            128.0,
+            160.0,
             -192.0
           ],
           "color": [
@@ -209,6 +211,7 @@
         }
       ],
       "rotating_filters": [],
+      "melty_platforms": [],
       "texts": [
         {
           "pos": [
@@ -216,6 +219,14 @@
             0.0
           ],
           "font_size": 32.0,
+          "text": "This filter absorbs light."
+        },
+        {
+          "pos": [
+            0.0,
+            -64.0
+          ],
+          "font_size": 32.0,
           "text": "Press R to reset."
         }
       ]
@@ -279,9 +290,10 @@
             0.0,
             -64.0
           ],
-          "angle": 45.0
+          "angle": 120.0
         }
       ],
+      "melty_platforms": [],
       "texts": [
         {
           "pos": [
@@ -293,6 +305,352 @@
         }
       ]
     },
+    {
+      "comment": "Melting platform tutorial",
+      "characters": [
+        {
+          "pos": [
+            -304.0,
+            -208.0
+          ],
+          "color": [
+            0.7,
+            0.7,
+            0.7,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            304.0,
+            -208.0
+          ],
+          "color": [
+            0.3,
+            0.3,
+            0.3,
+            1.0
+          ]
+        }
+      ],
+      "platforms": [
+        {
+          "pos": [
+            -304.0,
+            -256.0
+          ],
+          "size": [
+            192.0,
+            16.0
+          ]
+        },
+        {
+          "pos": [
+            304.0,
+            -256.0
+          ],
+          "size": [
+            192.0,
+            16.0
+          ]
+        }
+      ],
+      "absorbing_filters": [],
+      "rotating_filters": [],
+      "melty_platforms": [
+        {
+          "pos": [
+            0.0,
+            -256.0
+          ],
+          "color": [
+            0.5,
+            0.5,
+            0.5,
+            1.0
+          ]
+        }
+      ],
+      "texts": [
+        {
+          "pos": [
+            0.0,
+            -64.0
+          ],
+          "font_size": 32.0,
+          "text": "Too much light\ncause some platforms to melt."
+        }
+      ]
+    },
+    {
+      "comment": "First puzzle",
+      "characters": [
+        {
+          "pos": [
+            184.0,
+            168.0
+          ],
+          "color": [
+            0.85,
+            0.5,
+            0.0,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            -184.0,
+            168.0
+          ],
+          "color": [
+            0.0,
+            0.5,
+            0.1,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            -1376.0,
+            -184.0
+          ],
+          "color": [
+            1.0,
+            0.0,
+            0.0,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            -1512.0,
+            -184.0
+          ],
+          "color": [
+            0.0,
+            0.0,
+            0.9,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            0.0,
+            368.0
+          ],
+          "color": [
+            0.15,
+            0.0,
+            0.5,
+            1.0
+          ]
+        }
+      ],
+      "platforms": [
+        {
+          "pos": [
+            -12.0,
+            -264.0
+          ],
+          "size": [
+            456.0,
+            16.0
+          ]
+        },
+        {
+          "pos": [
+            -148.0,
+            120.0
+          ],
+          "size": [
+            200.0,
+            16.0
+          ]
+        },
+        {
+          "pos": [
+            148.0,
+            120.0
+          ],
+          "size": [
+            200.0,
+            16.0
+          ]
+        },
+        {
+          "pos": [
+            -1336.0,
+            -256.0
+          ],
+          "size": [
+            576.0,
+            16.0
+          ]
+        },
+        {
+          "pos": [
+            -240.0,
+            292.0
+          ],
+          "size": [
+            16.0,
+            328.0
+          ]
+        },
+        {
+          "pos": [
+            240.0,
+            292.0
+          ],
+          "size": [
+            16.0,
+            328.0
+          ]
+        },
+        {
+          "pos": [
+            0.0,
+            20.0
+          ],
+          "size": [
+            176.0,
+            24.0
+          ]
+        },
+        {
+          "pos": [
+            -200.0,
+            60.0
+          ],
+          "size": [
+            16.0,
+            104.0
+          ]
+        },
+        {
+          "pos": [
+            200.0,
+            60.0
+          ],
+          "size": [
+            16.0,
+            104.0
+          ]
+        },
+        {
+          "pos": [
+            0.0,
+            320.0
+          ],
+          "size": [
+            96.0,
+            16.0
+          ]
+        }
+      ],
+      "absorbing_filters": [
+        {
+          "pos": [
+            -1176.0,
+            -96.0
+          ],
+          "size": [
+            16.0,
+            304.0
+          ],
+          "color": [
+            0.0,
+            0.5,
+            0.5,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            -140.0,
+            16.0
+          ],
+          "size": [
+            104.0,
+            16.0
+          ],
+          "color": [
+            0.6,
+            0.0,
+            0.0,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            140.0,
+            16.0
+          ],
+          "size": [
+            104.0,
+            16.0
+          ],
+          "color": [
+            0.0,
+            1.0,
+            0.0,
+            1.0
+          ]
+        }
+      ],
+      "rotating_filters": [],
+      "melty_platforms": [
+        {
+          "pos": [
+            0.0,
+            120.0
+          ],
+          "color": [
+            0.7,
+            0.7,
+            0.0,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            -616.0,
+            -256.0
+          ],
+          "color": [
+            0.45,
+            0.0,
+            0.0,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            -856.0,
+            -256.0
+          ],
+          "color": [
+            0.0,
+            0.0,
+            0.5,
+            1.0
+          ]
+        },
+        {
+          "pos": [
+            -400.0,
+            -256.0
+          ],
+          "color": [
+            0.0,
+            0.0,
+            0.6,
+            1.0
+          ]
+        }
+      ],
+      "texts": []
+    },
     {
       "comment": "Game over",
       "characters": [
@@ -323,6 +681,7 @@
       ],
       "absorbing_filters": [],
       "rotating_filters": [],
+      "melty_platforms": [],
       "texts": [
         {
           "pos": [

src/editor.rs

@@ -22,7 +22,9 @@ impl Plugin for EditorPlugin {
 				SystemSet::on_update(AppState::Editor)
 					.with_system(move_system)
 					.with_system(input_control_system)
-					.with_system(follow_ends_system),
+					.with_system(follow_ends_system)
+					.with_system(remove_system)
+					.with_system(spawn_system),
 			);
 	}
 }
@@ -61,6 +63,12 @@ struct RotatingFilterAngle(f32);
 #[derive(Component)]
 struct AbsorbingFilterColor(Color);
 
+#[derive(Component)]
+struct MeltyPlatformColor(Color);
+
+#[derive(Component)]
+struct Removable;
+
 // Bundles
 
 #[derive(Bundle)]
@@ -69,6 +77,9 @@ struct PlatformBundle {
 	mesh: ColorMesh2dBundle,
 	size: Size,
 	platform: Platform,
+	#[bundle]
+	pickable: PickableBundle,
+	removable: Removable,
 }
 
 #[derive(Bundle)]
@@ -89,6 +100,7 @@ struct CharacterBundle {
 	#[bundle]
 	pickable: PickableBundle,
 	draggable: Draggable,
+	removable: Removable,
 }
 
 #[derive(Bundle)]
@@ -97,6 +109,9 @@ struct AbsorbingFilterBundle {
 	mesh: ColorMesh2dBundle,
 	size: Size,
 	color: AbsorbingFilterColor,
+	#[bundle]
+	pickable: PickableBundle,
+	removable: Removable,
 }
 
 #[derive(Bundle)]
@@ -107,6 +122,18 @@ struct RotatingFilterBundle {
 	#[bundle]
 	pickable: PickableBundle,
 	draggable: Draggable,
+	removable: Removable,
+}
+
+#[derive(Bundle)]
+struct MeltyPlatformBundle {
+	#[bundle]
+	mesh: ColorMesh2dBundle,
+	color: MeltyPlatformColor,
+	#[bundle]
+	pickable: PickableBundle,
+	draggable: Draggable,
+	removable: Removable,
 }
 
 // Functions
@@ -129,6 +156,8 @@ fn spawn_platform(
 			},
 			size: Size(size),
 			platform: Platform,
+			pickable: PickableBundle::default(),
+			removable: Removable,
 		})
 		.id();
 	let ends = Ends(
@@ -207,6 +236,7 @@ fn spawn_character(
 			color: CharacterColor(color),
 			pickable: PickableBundle::default(),
 			draggable: Draggable,
+			removable: Removable,
 		})
 		.with_children(|c| {
 			c.spawn_bundle(Text2dBundle {
@@ -245,6 +275,8 @@ fn spawn_absorbing_filter(
 			},
 			size: Size(size),
 			color: AbsorbingFilterColor(color),
+			pickable: PickableBundle::default(),
+			removable: Removable,
 		})
 		.id();
 	let ends = Ends(
@@ -322,6 +354,7 @@ fn spawn_rotating_filter(
 			angle: RotatingFilterAngle(angle),
 			pickable: PickableBundle::default(),
 			draggable: Draggable,
+			removable: Removable,
 		})
 		.with_children(|c| {
 			c.spawn_bundle(Text2dBundle {
@@ -341,6 +374,52 @@ fn spawn_rotating_filter(
 		.id()
 }
 
+fn spawn_melty_platform(
+	commands: &mut Commands,
+	meshes: &mut ResMut<Assets<Mesh>>,
+	materials: &mut ResMut<Assets<ColorMaterial>>,
+	asset_server: &Res<AssetServer>,
+
+	transform: Transform,
+	color: Color,
+) -> Entity {
+	let font = asset_server.get_handle("UacariLegacy-Thin.ttf");
+	commands
+		.spawn_bundle(MeltyPlatformBundle {
+			mesh: ColorMesh2dBundle {
+				mesh: meshes
+					.add(Mesh::from(Quad {
+						size: Vec2 { x: 96., y: 16. },
+						flip: false,
+					}))
+					.into(),
+				material: materials.add(ColorMaterial::from(color)),
+				transform,
+				..default()
+			},
+			color: MeltyPlatformColor(color),
+			pickable: PickableBundle::default(),
+			draggable: Draggable,
+			removable: Removable,
+		})
+		.with_children(|c| {
+			c.spawn_bundle(Text2dBundle {
+				text: Text::from_section(
+					"MELTY",
+					TextStyle {
+						font: font.clone(),
+						font_size: 16.,
+						color: Color::BLACK,
+					},
+				)
+				.with_alignment(TextAlignment::CENTER),
+				transform: Transform::from_xyz(0., 0., 1.),
+				..Default::default()
+			});
+		})
+		.id()
+}
+
 fn spawn_stored_level(
 	commands: &mut Commands,
 	meshes: &mut ResMut<Assets<Mesh>>,
@@ -394,6 +473,17 @@ fn spawn_stored_level(
 			rotating_filter.angle,
 		);
 	}
+
+	for melty_platform in stored_level.melty_platforms.iter() {
+		spawn_melty_platform(
+			commands,
+			meshes,
+			materials,
+			asset_server,
+			Transform::from_xyz(melty_platform.pos.x, melty_platform.pos.y, 0.),
+			melty_platform.color.into(),
+		);
+	}
 }
 
 fn save_level(
@@ -408,6 +498,10 @@ fn save_level(
 		(&Transform, &RotatingFilterAngle),
 		(Without<Platform>, Without<CharacterColor>),
 	>,
+	melty_platform_query: &Query<
+		(&Transform, &MeltyPlatformColor),
+		(Without<Platform>, Without<CharacterColor>),
+	>,
 ) {
 	let stored_levels = stored_levels_assets.get_mut(stored_levels_handle).unwrap();
 	if let Some(stored_level) = stored_levels.levels.get_mut(level_id.0 .0 as usize) {
@@ -457,6 +551,17 @@ fn save_level(
 				angle: angle.0,
 			})
 		}
+
+		stored_level.melty_platforms.clear();
+		for (transform, color) in melty_platform_query.iter() {
+			stored_level.melty_platforms.push(StoredMeltyPlatform {
+				pos: Vec2 {
+					x: transform.translation.x,
+					y: transform.translation.y,
+				},
+				color: color.0.into(),
+			})
+		}
 	} else {
 		return;
 	}
@@ -518,8 +623,12 @@ fn input_control_system(
 		(&Transform, &RotatingFilterAngle),
 		(Without<Platform>, Without<CharacterColor>),
 	>,
+	melty_platform_query: Query<
+		(&Transform, &MeltyPlatformColor),
+		(Without<Platform>, Without<CharacterColor>),
+	>,
 ) {
-	if keyboard_input.just_released(KeyCode::S)
+	if keyboard_input.just_pressed(KeyCode::S)
 		&& (keyboard_input.pressed(KeyCode::LControl) || keyboard_input.pressed(KeyCode::RControl))
 	{
 		save_level(
@@ -531,6 +640,7 @@ fn input_control_system(
 			&platform_query,
 			&absorbing_filter_query,
 			&rotating_filter_query,
+			&melty_platform_query,
 		);
 	}
 }
@@ -584,6 +694,96 @@ fn move_system(
 	}
 }
 
+fn remove_system(
+	mut commands: Commands,
+	keyboard_input: Res<Input<KeyCode>>,
+	mut removable_query: Query<(Entity, &Selection, Option<&Ends>), With<Removable>>,
+) {
+	if keyboard_input.just_released(KeyCode::Delete) {
+		for (entity, selection, ends) in removable_query.iter_mut() {
+			if selection.selected() {
+				commands.entity(entity).despawn_recursive();
+				if let Some(ends) = ends {
+					commands.entity(ends.0).despawn_recursive();
+					commands.entity(ends.1).despawn_recursive();
+				}
+			}
+		}
+	}
+}
+
+fn spawn_system(
+	mut commands: Commands,
+	mut meshes: ResMut<Assets<Mesh>>,
+	mut materials: ResMut<Assets<ColorMaterial>>,
+	asset_server: Res<AssetServer>,
+	camera_query: Query<&Transform, With<Camera>>,
+	keyboard_input: Res<Input<KeyCode>>,
+	mut character_list: ResMut<CharacterList>,
+) {
+	if keyboard_input.pressed(KeyCode::LControl)
+		|| keyboard_input.pressed(KeyCode::RControl)
+		|| keyboard_input.pressed(KeyCode::LAlt)
+		|| keyboard_input.pressed(KeyCode::RAlt)
+	{
+		return;
+	}
+
+	let camera_pos = camera_query.single().translation;
+
+	if keyboard_input.just_released(KeyCode::P) {
+		spawn_platform(
+			&mut commands,
+			&mut meshes,
+			&mut materials,
+			Transform::from_xyz(camera_pos.x, camera_pos.y, 0.),
+			Vec2 { x: 96., y: 16. },
+		);
+	}
+	if keyboard_input.just_released(KeyCode::C) {
+		let index = character_list.0.len();
+		character_list.0.push(spawn_character(
+			&mut commands,
+			&mut meshes,
+			&mut materials,
+			&asset_server,
+			Transform::from_xyz(camera_pos.x, camera_pos.y, 0.),
+			Color::RED,
+			index,
+		));
+	}
+	if keyboard_input.just_released(KeyCode::A) {
+		spawn_absorbing_filter(
+			&mut commands,
+			&mut meshes,
+			&mut materials,
+			Transform::from_xyz(camera_pos.x, camera_pos.y, 0.),
+			Vec2 { x: 16., y: 96. },
+			Color::RED,
+		);
+	}
+	if keyboard_input.just_released(KeyCode::R) {
+		spawn_rotating_filter(
+			&mut commands,
+			&mut meshes,
+			&mut materials,
+			&asset_server,
+			Transform::from_xyz(camera_pos.x, camera_pos.y, 0.),
+			90.,
+		);
+	}
+	if keyboard_input.just_released(KeyCode::M) {
+		spawn_melty_platform(
+			&mut commands,
+			&mut meshes,
+			&mut materials,
+			&asset_server,
+			Transform::from_xyz(camera_pos.x, camera_pos.y, 0.),
+			Color::RED,
+		);
+	}
+}
+
 fn follow_ends_system(
 	mut meshes: ResMut<Assets<Mesh>>,
 	mut follower_query: Query<(&mut Transform, &mut Mesh2dHandle, &mut Size, &Ends)>,

src/game.rs

@@ -13,6 +13,7 @@ use bevy::{
 };
 use bevy_rapier2d::prelude::*;
 use rapier2d::geometry::CollisionEventFlags;
+use std::collections::BTreeSet;
 
 pub enum AudioMsg {
 	Color([f32; 3]),
@@ -33,6 +34,7 @@ impl Plugin for GamePlugin {
 		app.add_event::<LevelStartupEvent>()
 			.init_resource::<CharacterMeshes>()
 			.insert_resource(CurrentLevel(None))
+			.init_resource::<CharacterList>()
 			.add_system_set(SystemSet::on_enter(AppState::Game).with_system(setup))
 			.add_system_set(SystemSet::on_enter(AppState::Win).with_system(win_setup))
 			.add_system_set(
@@ -52,7 +54,8 @@ impl Plugin for GamePlugin {
 					.with_system(player_movement_system)
 					.with_system(level_keyboard_system)
 					.with_system(move_camera)
-					.with_system(character_particle_effect_system),
+					.with_system(character_particle_effect_system)
+					.with_system(move_win_text_system),
 			)
 			.add_system_to_stage(CoreStage::PostUpdate, collision_event_system);
 	}
@@ -66,6 +69,9 @@ pub struct LevelStartupEvent;
 
 pub struct CurrentLevel(pub Option<LevelId>);
 
+#[derive(Default)]
+pub struct CharacterList(pub BTreeSet<Entity>);
+
 pub struct CharacterMeshes {
 	square: Mesh2dHandle,
 }
@@ -98,6 +104,12 @@ pub struct Player;
 #[derive(Component)]
 pub struct CollisionCount(usize);
 
+#[derive(Component)]
+pub struct Melty(pub Color);
+
+#[derive(Component)]
+pub struct WinText;
+
 // Systems
 
 fn setup(
@@ -118,19 +130,29 @@ pub fn spawn_characters<I: IntoIterator<Item = (Transform, Color)>>(
 	character_meshes: &Res<CharacterMeshes>,
 	materials: &mut ResMut<Assets<ColorMaterial>>,
 	audio: &Res<crossbeam_channel::Sender<AudioMsg>>,
+	character_list: &mut ResMut<CharacterList>,
 
 	characters: I,
 ) {
+	const Z_INCREMENT: f32 = 0.01;
+	let mut curr_z: f32 = Z_INCREMENT;
+
 	for (i, (transform, color)) in characters.into_iter().enumerate() {
 		spawn_character(
 			commands,
 			character_meshes,
 			materials,
 			audio,
-			transform,
+			character_list,
+			{
+				let mut new_transform: Transform = transform;
+				new_transform.translation.z = curr_z;
+				new_transform
+			},
 			color,
 			i == 0,
 		);
+		curr_z += Z_INCREMENT;
 	}
 }
 
@@ -139,6 +161,7 @@ pub fn spawn_character(
 	character_meshes: &Res<CharacterMeshes>,
 	materials: &mut ResMut<Assets<ColorMaterial>>,
 	audio: &Res<crossbeam_channel::Sender<AudioMsg>>,
+	character_list: &mut ResMut<CharacterList>,
 	mut transform: Transform,
 	color: Color,
 	is_player: bool,
@@ -178,6 +201,8 @@ pub fn spawn_character(
 			.insert(CollisionCount(0));
 		});
 
+	character_list.0.insert(entity_commands.id());
+
 	if is_player {
 		entity_commands.insert(Player);
 		audio
@@ -217,6 +242,39 @@ pub fn spawn_platform(
 		.insert(Level);
 }
 
+pub fn spawn_melty_platform(
+	commands: &mut Commands,
+	meshes: &mut ResMut<Assets<Mesh>>,
+	materials: &mut ResMut<Assets<ColorMaterial>>,
+	asset_server: &Res<AssetServer>,
+
+	transform: Transform,
+	color: Color,
+) {
+	commands
+		.spawn_bundle(ColorMesh2dBundle {
+			mesh: meshes
+				.add(Mesh::from(Quad {
+					size: Vec2 { x: 96., y: 16. },
+					flip: false,
+				}))
+				.into(),
+			material: materials.add(ColorMaterial::from(color)),
+			transform,
+			..default()
+		})
+		.insert(Collider::cuboid(48., 8.))
+		.insert(Melty(color))
+		.insert(Level)
+		.with_children(|c| {
+			c.spawn_bundle(SpriteBundle {
+				texture: asset_server.get_handle("melty.png"),
+				transform: Transform::from_xyz(0., 0., 0.5),
+				..default()
+			});
+		});
+}
+
 fn collision_event_system(
 	mut commands: Commands,
 	character_meshes: Res<CharacterMeshes>,
@@ -229,9 +287,11 @@ fn collision_event_system(
 		Option<&Player>,
 	)>,
 	pass_through_filter_query: Query<&PassThroughFilter>,
+	melty_query: Query<&Melty>,
 	mut collision_counter_query: Query<&mut CollisionCount>,
 	mut app_state: ResMut<State<AppState>>,
 	audio: Res<crossbeam_channel::Sender<AudioMsg>>,
+	mut character_list: ResMut<CharacterList>,
 ) {
 	for collision_event in collision_events.iter() {
 		match collision_event {
@@ -242,6 +302,8 @@ fn collision_event_system(
 						Ok((c2_color, c2_transform, _c2_material, c2_player)),
 					) = (character_query.get(*e1), character_query.get(*e2))
 					{
+						character_list.0.remove(e1);
+						character_list.0.remove(e2);
 						commands.entity(*e1).despawn_recursive();
 						commands.entity(*e2).despawn_recursive();
 
@@ -249,8 +311,7 @@ fn collision_event_system(
 							.clamp(Vec4::ZERO, Vec4::ONE);
 
 						// If color approximately white
-						if app_state.current() == &AppState::Game
+						if app_state.current() == &AppState::Game && new_color.min_element() >= 0.9
-							&& 4. - new_color.length_squared() < 0.1
 						{
 							app_state.replace(AppState::Win).ok();
 						}
@@ -261,6 +322,7 @@ fn collision_event_system(
 							&character_meshes,
 							&mut materials,
 							&audio,
+							&mut character_list,
 							if c1_player.is_some() {
 								*c1_transform
 							} else if c2_player.is_some() {
@@ -275,6 +337,18 @@ fn collision_event_system(
 						);
 
 						audio.send(AudioMsg::Fusion).ok();
+					} else if let (Ok((c_color, _c_transform, _c_material, _c_player)), Ok(melty)) =
+						(character_query.get_mut(*e1), melty_query.get(*e2))
+					{
+						if (Vec4::from(melty.0) - Vec4::from(c_color.0)).max_element() <= 0. {
+							commands.entity(*e2).despawn_recursive();
+						}
+					} else if let (Ok((c_color, _c_transform, _c_material, _c_player)), Ok(melty)) =
+						(character_query.get_mut(*e2), melty_query.get(*e1))
+					{
+						if (Vec4::from(melty.0) - Vec4::from(c_color.0)).max_element() <= 0. {
+							commands.entity(*e1).despawn_recursive();
+						}
 					}
 				} else if *flags == CollisionEventFlags::SENSOR {
 					if let (Ok((mut c_color, _c_transform, mut c_material, c_player)), Ok(filter)) = (
@@ -292,6 +366,7 @@ fn collision_event_system(
 									c_color.0.b(),
 								]))
 								.ok();
+							audio.send(AudioMsg::Switch).ok();
 						}
 					} else if let (
 						Ok((mut c_color, _c_transform, mut c_material, c_player)),
@@ -311,6 +386,7 @@ fn collision_event_system(
 									c_color.0.b(),
 								]))
 								.ok();
+							audio.send(AudioMsg::Switch).ok();
 						}
 					} else if let (Ok(mut collision_count), Err(_)) = (
 						collision_counter_query.get_mut(*e1),
@@ -350,41 +426,32 @@ fn change_character_system(
 	keyboard_input: Res<Input<KeyCode>>,
 	characters: Query<(Entity, &CharacterColor, Option<&Player>)>,
 	audio: Res<crossbeam_channel::Sender<AudioMsg>>,
+	character_list: Res<CharacterList>,
 ) {
 	if !keyboard_input.just_pressed(KeyCode::Tab) {
 		return;
 	}
 
-	let mut player_idx: usize = 0;
+	if let Some((player_entity, _color, _)) = characters
-	let mut player_count: usize = 0;
+		.iter()
-
+		.find(|(_entity, _color, player)| player.is_some())
-	// find player idx
+		.or_else(|| characters.iter().next())
-	for (_entity, _color, player) in characters.iter() {
+	{
-		if player.is_some() {
+		commands.entity(player_entity).remove::<Player>();
-			player_idx = player_count;
+		if let Some(new_player_entity) = character_list
+			.0
+			.range(player_entity..)
+			.nth(1)
+			.or_else(|| character_list.0.iter().next())
+		{
+			commands.entity(*new_player_entity).insert(Player);
+			if let Ok((_entity, color, _player)) = characters.get(*new_player_entity) {
+				audio
+					.send(AudioMsg::Color([color.0.r(), color.0.g(), color.0.b()]))
+					.ok();
+				audio.send(AudioMsg::Switch).ok();
+			}
 		}
-		player_count += 1;
-	}
-
-	// calculate next player index
-	let next_player_idx = (player_idx + 1) % player_count;
-	player_count = 0;
-
-	// exchange `Player` component from old `player_idx` to new `next_player_idx`
-	for (entity, color, _player) in characters.iter() {
-		if player_count == player_idx {
-			commands.entity(entity).remove::<Player>();
-		}
-
-		if player_count == next_player_idx {
-			commands.entity(entity).insert(Player);
-			audio
-				.send(AudioMsg::Color([color.0.r(), color.0.g(), color.0.b()]))
-				.ok();
-			audio.send(AudioMsg::Switch).ok();
-		}
-
-		player_count += 1;
 	}
 }
 
@@ -440,7 +507,8 @@ fn win_setup(
 			transform: Transform::from_xyz(0., 0., 3.),
 			..default()
 		})
-		.insert(Level);
+		.insert(Level)
+		.insert(WinText);
 	commands
 		.spawn_bundle(Text2dBundle {
 			text: Text::from_section(
@@ -455,7 +523,8 @@ fn win_setup(
 			transform: Transform::from_xyz(0., 0., 4.),
 			..Default::default()
 		})
-		.insert(Level);
+		.insert(Level)
+		.insert(WinText);
 }
 
 fn move_camera(
@@ -484,12 +553,24 @@ fn move_camera(
 	}
 }
 
+fn move_win_text_system(
+	camera_query: Query<&Transform, With<Camera>>,
+	mut win_text_query: Query<&mut Transform, (With<WinText>, Without<Camera>)>,
+) {
+	let camera_pos = camera_query.single();
+	for mut pos in win_text_query.iter_mut() {
+		pos.translation.x = camera_pos.translation.x;
+		pos.translation.y = camera_pos.translation.y;
+	}
+}
+
 fn level_keyboard_system(
 	mut commands: Commands,
 	mut current_level: ResMut<CurrentLevel>,
 	mut level_startup_event: EventWriter<LevelStartupEvent>,
 	mut camera_query: Query<&mut Transform, With<Camera>>,
 	keyboard_input: Res<Input<KeyCode>>,
+	mut character_list: ResMut<CharacterList>,
 	level_query: Query<Entity, With<Level>>,
 	mut app_state: ResMut<State<AppState>>,
 ) {
@@ -501,6 +582,7 @@ fn level_keyboard_system(
 	}
 
 	if keyboard_input.just_pressed(KeyCode::R) {
+		character_list.0.clear();
 		for entity in level_query.iter() {
 			commands.entity(entity).despawn_recursive();
 		}

src/levels.rs

@@ -16,7 +16,12 @@ pub fn setup_level(
 	level_startup_event.send(LevelStartupEvent);
 }
 
-pub fn despawn_level(mut commands: Commands, level_query: Query<Entity, With<Level>>) {
+pub fn despawn_level(
+	mut commands: Commands,
+	mut character_list: ResMut<CharacterList>,
+	level_query: Query<Entity, With<Level>>,
+) {
+	character_list.0.clear();
 	for entity in level_query.iter() {
 		commands.entity(entity).despawn_recursive();
 	}
@@ -32,6 +37,7 @@ pub fn post_setup_level(
 	mut level_startup_event: EventReader<LevelStartupEvent>,
 	asset_server: Res<AssetServer>,
 	audio: Res<crossbeam_channel::Sender<AudioMsg>>,
+	mut character_list: ResMut<CharacterList>,
 	stored_levels_assets: Res<Assets<StoredLevels>>,
 	stored_levels_handle: Res<Handle<StoredLevels>>,
 ) {
@@ -50,6 +56,7 @@ pub fn post_setup_level(
 					&mut materials,
 					&asset_server,
 					&audio,
+					&mut character_list,
 					stored_level,
 				);
 			}
@@ -64,6 +71,7 @@ pub fn spawn_stored_level(
 	materials: &mut ResMut<Assets<ColorMaterial>>,
 	asset_server: &Res<AssetServer>,
 	audio: &Res<crossbeam_channel::Sender<AudioMsg>>,
+	character_list: &mut ResMut<CharacterList>,
 
 	stored_level: &StoredLevel,
 ) {
@@ -84,6 +92,7 @@ pub fn spawn_stored_level(
 		character_meshes,
 		materials,
 		audio,
+		character_list,
 		stored_level.characters.iter().map(|character| {
 			(
 				Transform::from_xyz(character.pos.x, character.pos.y, 0.),
@@ -109,6 +118,16 @@ pub fn spawn_stored_level(
 			rotating_filter.angle,
 		);
 	}
+	for melty_platform in stored_level.melty_platforms.iter() {
+		spawn_melty_platform(
+			commands,
+			meshes,
+			materials,
+			asset_server,
+			Transform::from_xyz(melty_platform.pos.x, melty_platform.pos.y, 2.),
+			melty_platform.color.into(),
+		);
+	}
 	for text in stored_level.texts.iter() {
 		commands
 			.spawn_bundle(Text2dBundle {
@@ -145,6 +164,7 @@ pub mod stored {
 		pub platforms: Vec<StoredPlatform>,
 		pub absorbing_filters: Vec<StoredAbsorbingFilter>,
 		pub rotating_filters: Vec<StoredRotatingFilter>,
+		pub melty_platforms: Vec<StoredMeltyPlatform>,
 		pub texts: Vec<StoredText>,
 	}
 
@@ -177,6 +197,13 @@ pub mod stored {
 		pub angle: f32,
 	}
 
+	#[derive(Deserialize, Serialize, TypeUuid)]
+	#[uuid = "cb0773ef-eca6-9b96-dcba-f4240ebdcf40"]
+	pub struct StoredMeltyPlatform {
+		pub pos: Vec2,
+		pub color: Vec4,
+	}
+
 	#[derive(Deserialize, Serialize, TypeUuid)]
 	#[uuid = "72f6321a-f01f-6eea-9b17-3159837a2fd3"]
 	pub struct StoredText {

src/main.rs

@@ -99,7 +99,10 @@ fn setup(mut commands: Commands, mut windows: ResMut<Windows>, asset_server: Res
 		assets.add(asset_server.load::<levels::StoredLevels, _>("game.levels.json")),
 	);
 	commands.insert_resource(assets.add(asset_server.load::<Font, _>("UacariLegacy-Thin.ttf")));
-	commands.insert_resource(assets.add(asset_server.load::<Image, _>("bevy.png")));
+	commands.insert_resource([
+		assets.add(asset_server.load::<Image, _>("bevy.png")),
+		assets.add(asset_server.load("melty.png")),
+	]);
 	commands.insert_resource(assets);
 
 	commands.spawn_bundle(Camera2dBundle::default());

src/menu.rs

@@ -20,6 +20,22 @@ impl Plugin for MenuPlugin {
 
 fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
 	let font = asset_server.get_handle("UacariLegacy-Thin.ttf");
+	#[cfg(target_arch = "wasm32")]
+	commands
+		.spawn_bundle(Text2dBundle {
+			text: Text::from_section(
+				"Note:\nAudio is NOT available in the WASM build.",
+				TextStyle {
+					font: font.clone(),
+					font_size: 24.0,
+					color: Color::rgba(1., 0.4, 0.4, 1.),
+				},
+			)
+			.with_alignment(TextAlignment::CENTER),
+			transform: Transform::from_xyz(0., -128.0, 0.),
+			..Default::default()
+		})
+		.insert(Menu);
 	commands
 		.spawn_bundle(Text2dBundle {
 			text: Text::from_section(

src/particle_effect.rs

@@ -1,5 +1,5 @@
 use bevy::{prelude::*, sprite::Mesh2dHandle};
-use rand::Rng;
+use rand::{rngs::ThreadRng, Rng};
 use rand_distr::{Distribution, UnitCircle};
 
 #[cfg(not(target_arch = "wasm32"))]
@@ -68,15 +68,20 @@ pub struct ParticleComponent {
 }
 
 impl ParticleComponent {
-	pub fn new() -> Self {
+	pub fn new(rng: &mut ThreadRng) -> Self {
 		let mut particle_component: Self = Self::default();
-		particle_component.randomize_velocity(MIN_VELOCITY, MAX_VELOCITY);
+		particle_component.randomize_velocity(rng, MIN_VELOCITY, MAX_VELOCITY);
 		particle_component
 	}
 
-	pub fn randomize_velocity(&mut self, min_velocity: f32, max_velocity: f32) {
+	pub fn randomize_velocity(
-		let random_direction: [f32; 2] = UnitCircle.sample(&mut rand::thread_rng());
+		&mut self,
-		let random_magnitude: f32 = rand::thread_rng().gen_range(min_velocity..max_velocity);
+		rng: &mut ThreadRng,
+		min_velocity: f32,
+		max_velocity: f32,
+	) {
+		let random_direction: [f32; 2] = UnitCircle.sample(rng);
+		let random_magnitude: f32 = rng.gen_range(min_velocity..max_velocity);
 		self.velocity = Vec3::new(random_direction[0], random_direction[1], 0.0) * random_magnitude;
 	}
 }
@@ -87,6 +92,8 @@ fn particle_effect_startup(
 	particle_mesh: Res<ParticleMesh>,
 	mut materials: ResMut<Assets<ColorMaterial>>,
 ) {
+	let mut rng = rand::thread_rng();
+
 	for _p in 0..POOL_COUNT {
 		let color_mesh = ColorMesh2dBundle {
 			mesh: particle_mesh.square.clone(),
@@ -96,7 +103,7 @@ fn particle_effect_startup(
 
 		commands
 			.spawn_bundle(color_mesh)
-			.insert(ParticleComponent::new());
+			.insert(ParticleComponent::new(&mut rng));
 	}
 }
 
@@ -110,6 +117,8 @@ fn particle_effect_system(
 	mut particle_effect: ResMut<ParticleEffectResource>,
 	time: Res<Time>,
 ) {
+	let mut rng = rand::thread_rng();
+
 	let delta_seconds: f32 = f32::max(0.001, time.delta_seconds());
 	let delta_position: Vec3 = particle_effect.translation - particle_effect.prev_translation;
 	// let overall_velocity: Vec3 = delta_position / delta_seconds;
@@ -124,7 +133,7 @@ fn particle_effect_system(
 			.distance_squared(particle_effect.translation);
 		if squared_distance > particle_effect.radius_squared {
 			transform.translation = particle_effect.translation;
-			particle_component.randomize_velocity(MIN_VELOCITY, MAX_VELOCITY);
+			particle_component.randomize_velocity(&mut rng, MIN_VELOCITY, MAX_VELOCITY);
 		}
 
 		if let Some(material) = materials.get_mut(color_material) {
@@ -134,5 +143,6 @@ fn particle_effect_system(
 					/ particle_effect.radius_squared,
 			);
 		}
+        transform.translation.z = 0.005;
 	}
 }