feat: implement generic optimized collision system

src/events.rs

@@ -1,10 +1,19 @@
-use bevy_ecs::event::Event;
+use bevy_ecs::prelude::*;
 
-use crate::systems::input::GameCommand;
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum GameCommand {
+    Exit,
+    MovePlayer(crate::entity::direction::Direction),
+    ToggleDebug,
+    MuteAudio,
+    ResetLevel,
+    TogglePause,
+}
 
-#[derive(Debug, Clone, Copy, Event)]
+#[derive(Event, Clone, Copy, Debug, PartialEq, Eq)]
 pub enum GameEvent {
     Command(GameCommand),
+    Collision(Entity, Entity),
 }
 
 impl From<GameCommand> for GameEvent {