refactor: store common components & bundles in 'common' submodule, move others directly into relevant files, create 'animation' submodule

src/systems/common/bundles.rs

@@ -0,0 +1,43 @@
+use bevy_ecs::bundle::Bundle;
+
+use crate::systems::{
+    BufferedDirection, Collider, DirectionalAnimation, EntityType, Ghost, GhostCollider, GhostState, ItemCollider,
+    LastAnimationState, MovementModifiers, PacmanCollider, PlayerControlled, Position, Renderable, Velocity,
+};
+
+#[derive(Bundle)]
+pub struct PlayerBundle {
+    pub player: PlayerControlled,
+    pub position: Position,
+    pub velocity: Velocity,
+    pub buffered_direction: BufferedDirection,
+    pub sprite: Renderable,
+    pub directional_animation: DirectionalAnimation,
+    pub entity_type: EntityType,
+    pub collider: Collider,
+    pub movement_modifiers: MovementModifiers,
+    pub pacman_collider: PacmanCollider,
+}
+
+#[derive(Bundle)]
+pub struct ItemBundle {
+    pub position: Position,
+    pub sprite: Renderable,
+    pub entity_type: EntityType,
+    pub collider: Collider,
+    pub item_collider: ItemCollider,
+}
+
+#[derive(Bundle)]
+pub struct GhostBundle {
+    pub ghost: Ghost,
+    pub position: Position,
+    pub velocity: Velocity,
+    pub sprite: Renderable,
+    pub directional_animation: DirectionalAnimation,
+    pub entity_type: EntityType,
+    pub collider: Collider,
+    pub ghost_collider: GhostCollider,
+    pub ghost_state: GhostState,
+    pub last_animation_state: LastAnimationState,
+}

src/systems/common/components.rs

@@ -0,0 +1,103 @@
+use bevy_ecs::{component::Component, resource::Resource};
+
+use crate::map::graph::TraversalFlags;
+
+/// A tag component denoting the type of entity.
+#[derive(Component, Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum EntityType {
+    Player,
+    Ghost,
+    Pellet,
+    PowerPellet,
+}
+
+impl EntityType {
+    /// Returns the traversal flags for this entity type.
+    pub fn traversal_flags(&self) -> TraversalFlags {
+        match self {
+            EntityType::Player => TraversalFlags::PACMAN,
+            EntityType::Ghost => TraversalFlags::GHOST,
+            _ => TraversalFlags::empty(), // Static entities don't traverse
+        }
+    }
+    pub fn score_value(&self) -> Option<u32> {
+        match self {
+            EntityType::Pellet => Some(10),
+            EntityType::PowerPellet => Some(50),
+            _ => None,
+        }
+    }
+
+    pub fn is_collectible(&self) -> bool {
+        matches!(self, EntityType::Pellet | EntityType::PowerPellet)
+    }
+}
+
+#[derive(Resource)]
+pub struct GlobalState {
+    pub exit: bool,
+}
+
+#[derive(Resource)]
+pub struct ScoreResource(pub u32);
+
+#[derive(Resource)]
+pub struct DeltaTime {
+    /// Floating-point delta time in seconds
+    pub seconds: f32,
+    /// Integer tick delta (usually 1, but can be different for testing)
+    pub ticks: u32,
+}
+
+#[allow(dead_code)]
+impl DeltaTime {
+    /// Creates a new DeltaTime from a floating-point delta time in seconds
+    ///
+    /// While this method exists as a helper, it does not mean that seconds and ticks are interchangeable.
+    pub fn from_seconds(seconds: f32) -> Self {
+        Self {
+            seconds,
+            ticks: (seconds * 60.0).round() as u32,
+        }
+    }
+
+    /// Creates a new DeltaTime from an integer tick delta
+    ///
+    /// While this method exists as a helper, it does not mean that seconds and ticks are interchangeable.
+    pub fn from_ticks(ticks: u32) -> Self {
+        Self {
+            seconds: ticks as f32 / 60.0,
+            ticks,
+        }
+    }
+}
+
+/// Movement modifiers that can affect Pac-Man's speed or handling.
+#[derive(Component, Debug, Clone, Copy)]
+pub struct MovementModifiers {
+    /// Multiplier applied to base speed (e.g., tunnels)
+    pub speed_multiplier: f32,
+    /// True when currently in a tunnel slowdown region
+    pub tunnel_slowdown_active: bool,
+}
+
+impl Default for MovementModifiers {
+    fn default() -> Self {
+        Self {
+            speed_multiplier: 1.0,
+            tunnel_slowdown_active: false,
+        }
+    }
+}
+
+/// Tag component for entities that should be frozen during startup
+#[derive(Component, Debug, Clone, Copy)]
+pub struct Frozen;
+
+/// Component for HUD life sprite entities.
+/// Each life sprite entity has an index indicating its position from left to right (0, 1, 2, etc.).
+/// This mostly functions as a tag component for sprites.
+#[derive(Component, Debug, Clone, Copy)]
+pub struct PlayerLife {
+    pub index: u32,
+}

src/systems/common/mod.rs

@@ -0,0 +1,5 @@
+pub mod bundles;
+pub mod components;
+
+pub use self::bundles::*;
+pub use self::components::*;