feat: lighting system

- Added lamp bundle
- Moved door collider to its children
- Updated level structure

src/layout/asset/mod.rs

@@ -3,20 +3,9 @@ use std::collections::HashMap;
 use bevy::prelude::*;
 
 use crate::{
-    LoadingState,
-    meters,
-    item::lockpick::lockpick_bundle,
-    layout::{
-        Level,
-        LevelAssetHandle,
-        asset::structs::*,
-        container::container_bundle,
-        door::door_bundle,
-        lock::padlock_bundle,
-        stairs::stairs_bundle,
-        tilemap::tilemap_bundle
-    },
-    player::player_bundle,
+    LoadingState, item::lockpick::lockpick_bundle, layout::{
+        Level, LevelAssetHandle, asset::structs::*, container::container_bundle, door::door_bundle, light::lamp_bundle, lock::padlock_bundle, stairs::stairs_bundle, tilemap::tilemap_bundle
+    }, meters, player::player_bundle
 };
 
 pub mod structs;
@@ -107,5 +96,10 @@ pub fn load_level (
                 }
             }
         }
+
+        for LampData { pos, intensity, radius } in level.interactive.lamps.iter() {
+            let pos = vec2(meters(pos.x), meters(pos.y - 0.5));
+            parent.spawn(lamp_bundle(&asset_server, pos, *intensity, meters(*radius)));
+        }
     });
 }

src/layout/asset/structs/inner.rs

@@ -176,6 +176,31 @@ impl From<ContainerDataInner> for ContainerData {
     }
 }
 
+pub(super) fn default_intensity() -> f32 { 2. }
+
+pub(super) fn default_radius() -> f32 { 4. }
+
+#[derive(Debug, Serialize, Deserialize, Default, PartialEq, Clone, Reflect)]
+#[reflect(Debug, Default, Deserialize, Serialize, PartialEq, Clone)]
+pub(super) struct LampDataInner {
+    #[serde(flatten)]
+    pub pos: Pos,
+    #[serde(default = "default_intensity")]
+    pub intensity: f32,
+    #[serde(default = "default_radius")]
+    pub radius: f32,
+}
+
+impl From<LampDataInner> for LampData {
+    fn from(LampDataInner { pos, intensity, radius }: LampDataInner) -> Self {
+        Self {
+            pos: pos.into(),
+            intensity,
+            radius,
+        }
+    }
+}
+
 #[derive(Debug, Serialize, Deserialize, Default, PartialEq, Clone, Reflect)]
 #[reflect(Debug, Default, Deserialize, Serialize, PartialEq, Clone)]
 pub(super) struct InteractiveInner {
@@ -186,15 +211,18 @@ pub(super) struct InteractiveInner {
     pub stairs: Option<Vec<StairsData>>,
     #[serde(default)]
     pub containers: Option<Vec<ContainerData>>,
+    #[serde(default)]
+    pub lamps: Option<Vec<LampData>>,
 }
 
 impl From<InteractiveInner> for Interactive {
-    fn from(InteractiveInner { player, doors, stairs, containers }: InteractiveInner) -> Self {
+    fn from(InteractiveInner { player, doors, stairs, containers, lamps }: InteractiveInner) -> Self {
         Self {
             player: player.into(),
             doors: doors.unwrap_or_default(),
             stairs: stairs.unwrap_or_default(),
             containers: containers.unwrap_or_default(),
+            lamps: lamps.unwrap_or_default(),
         }
     }
 }

src/layout/asset/structs/mod.rs

@@ -67,6 +67,15 @@ pub struct ContainerData {
     pub items: Vec<ItemData>,
 }
 
+#[derive(Debug, Serialize, Deserialize, Default, PartialEq, Clone, Reflect)]
+#[reflect(Debug, Default, Deserialize, Serialize, PartialEq, Clone)]
+#[serde(from = "inner::LampDataInner")]
+pub struct LampData {
+    pub pos: Vec2,
+    pub intensity: f32,
+    pub radius: f32,
+}
+
 #[derive(Debug, Serialize, Deserialize, Default, PartialEq, Clone, Reflect)]
 #[reflect(Debug, Default, Deserialize, Serialize, PartialEq, Clone)]
 #[serde(from = "inner::InteractiveInner")]
@@ -78,6 +87,8 @@ pub struct Interactive {
     pub stairs: Vec<StairsData>,
     #[serde(default)]
     pub containers: Vec<ContainerData>,
+    #[serde(default)]
+    pub lamps: Vec<LampData>,
 }
 
 #[derive(Debug, Serialize, Deserialize, Default, PartialEq, Eq, Clone, Deref, DerefMut, Reflect)]

src/layout/door.rs

@@ -1,4 +1,5 @@
 use bevy::prelude::*;
+use bevy_light_2d::prelude::*;
 use bevy_rapier2d::prelude::*;
 
 use crate::meters;
@@ -13,6 +14,11 @@ const DOOR_CLOSED_ASSET: &'static str = "sprites/interactive/door_closed.png";
 #[require(Sprite, InteractiveObject)]
 pub struct Door(pub i8);
 
+#[derive(Component, Clone, Copy, Reflect, Default, PartialEq, Eq, Debug)]
+#[reflect(Component, Clone, Default, PartialEq, Debug)]
+#[require(Collider, LightOccluder2d)]
+pub struct DoorCollider;
+
 impl Default for Door {
     fn default() -> Self {
         Self(1)
@@ -23,26 +29,22 @@ pub fn on_door_interact(
     event: On<InteractionEvent>,
     mut commands: Commands,
     locked_query: Query<(), With<Locked>>,
-    collider_query: Query<(), (With<Door>, With<Collider>)>,
-    no_collider_query: Query<(), (With<Door>, Without<Collider>)>,
     door_query: Query<(&Door, &Children)>,
+    door_collider_query: Query<Entity, With<DoorCollider>>,
     mut sprite_query: Query<(&mut Sprite, &mut Transform)>,
     asset_server: Res<AssetServer>,
 ) {
     if locked_query.get(event.entity).is_ok() {
         return;
     }
-    let was_opened = if collider_query.get(event.entity).is_ok() { false }
-        else if no_collider_query.get(event.entity).is_ok() { true }
-        else {
-            return;
-        };
     let Ok((door, children)) = door_query.get(event.entity) else {
         return;
     };
+    let maybe_door_collider = children.iter()
+        .find_map(|id| if let Ok(id) = door_collider_query.get(id) { Some(id) } else { None } );
     for child in children {
         if let Ok((mut sprite, mut transform)) = sprite_query.get_mut(*child) {
-            let (image, translation) = if was_opened { (DOOR_CLOSED_ASSET, 0.) }
+            let (image, translation) = if maybe_door_collider.is_none() { (DOOR_CLOSED_ASSET, 0.) }
                 else { (DOOR_OPENED_ASSET, door.0 as f32 * meters(0.5)) };
             sprite.image = asset_server.load(image);
             transform.translation.x = translation;
@@ -50,15 +52,20 @@ pub fn on_door_interact(
         }
     }
 
-    if was_opened {
-        commands.entity(event.entity).insert(door_collider());
+    if let Some(id) = maybe_door_collider {
+        commands.entity(id).despawn();
     } else {
-        commands.entity(event.entity).remove::<Collider>();
+        commands.entity(event.entity).with_child(door_collider_bundle());
     }
 }
 
-fn door_collider() -> Collider {
-    Collider::cuboid(meters(0.06125), meters(1.))
+pub fn door_collider_bundle() -> impl Bundle {
+    let size = vec2(meters(0.06125), meters(1.));
+    (
+        DoorCollider,
+        Collider::cuboid(size.x, size.y),
+        LightOccluder2d { shape: LightOccluder2dShape::Rectangle { half_size: size } },
+    )
 }
 
 pub fn door_bundle(asset_server: &Res<AssetServer>, position: Vec2, facing_left: bool) -> impl Bundle {
@@ -68,8 +75,8 @@ pub fn door_bundle(asset_server: &Res<AssetServer>, position: Vec2, facing_left:
         Door(direction),
         Transform::from_xyz(position.x, position.y, 0.),
         Name::new(format!("Door ({}, {})", position.x, position.y)),
-        door_collider(),
         children![
+            door_collider_bundle(),
             (
                 Collider::cuboid(meters(0.5), meters(1.)),
                 Sensor,

src/layout/light.rs

@@ -0,0 +1,26 @@
+use bevy::prelude::*;
+use bevy_light_2d::prelude::*;
+
+use crate::meters;
+
+const LAMP_IMAGE_PATH: &'static str = "sprites/interactive/lamp.png";
+
+#[derive(Component, Clone, Copy, Default, Reflect, Debug, PartialEq, Eq)]
+#[reflect(Component, Clone, Default, Debug, PartialEq)]
+#[require(Transform)]
+pub struct Lamp;
+
+pub fn lamp_bundle(asset_server: &Res<AssetServer>, pos: Vec2, intensity: f32, radius: f32) -> impl Bundle {
+    let image = asset_server.load(LAMP_IMAGE_PATH);
+    (
+        SpotLight2d {
+            intensity,
+            radius,
+            source_width: meters(0.5),
+            cast_shadows: true,
+            ..default()
+        },
+        Transform::from_xyz(pos.x, pos.y, 0.),
+        Sprite::from_image(image),
+    )
+}

src/layout/mod.rs

@@ -3,6 +3,7 @@ use bevy::prelude::*;
 pub mod asset;
 pub mod container;
 pub mod door;
+pub mod light;
 pub mod lock;
 pub mod stairs;
 pub mod systems;

src/layout/tilemap.rs

@@ -10,6 +10,7 @@ use bevy::{
         TilemapChunkTileData,
     },
 };
+use bevy_light_2d::prelude::*;
 use bevy_rapier2d::prelude::*;
 
 use crate::meters;
@@ -58,10 +59,13 @@ pub fn tilemap_bundle(
             let mut rect = rect.as_rect();
             rect.max = vec2(rect.max.x + 1., rect.max.y + 1.);
 
-            let (width, height) = (rect.width(), rect.height());
+            let (width, height) = (meters(rect.width() * 0.5), meters(rect.height() * 0.5));
             let offset = rect.center();
             (
-                Collider::cuboid(meters(width * 0.5), meters(height * 0.5)),
+                Collider::cuboid(width, height),
+                LightOccluder2d {
+                    shape: LightOccluder2dShape::Rectangle { half_size: vec2(width, height) },
+                },
                 Transform::from_xyz(
                     meters(offset.x - size.x as f32 * 0.5),
                     meters(offset.y - size.y as f32 * 0.5),

src/lib.rs

@@ -7,6 +7,7 @@ use bevy_rapier2d::{
     prelude::*,
     rapier::prelude::IntegrationParameters,
 };
+use bevy_light_2d::prelude::*;
 use clap::Parser;
 
 pub mod input;
@@ -60,6 +61,9 @@ pub fn camera_bundle() -> impl Bundle {
             scale: 1.,
             ..OrthographicProjection::default_2d()
         }),
+        Light2d {
+            ambient_light: AmbientLight2d { brightness: 0.25, ..default() }
+        },
         Name::new("Camera2d"),
     )
 }
@@ -101,6 +105,7 @@ impl Plugin for ExpeditionPlugin {
                 TomlAssetPlugin::<layout::asset::structs::LevelAsset>::new(&["toml"]),
                 input::plugin::InputAssetPlugin::<input::InputAction>::default(),
                 input::plugin::InputAssetPlugin::<input::UiAction>::default(),
+                Light2dPlugin,
             ))
             .init_state::<LoadingState>()
             .init_state::<GameState>()