Fix direction chance sound effect

src/snake/direction.rs

@@ -1,9 +1,9 @@
 use super::Snake;
-use crate::GameState;
+use crate::{audio, GameState};
 use bevy::prelude::*;
 use leafwing_input_manager::prelude::*;
 
-#[derive(Actionlike, Component, Copy, Clone, Debug)]
+#[derive(Actionlike, Component, Copy, Clone, Debug, PartialEq, Eq)]
 pub(super) enum Direction {
     Up,
     Down,
@@ -11,7 +11,7 @@ pub(super) enum Direction {
     Right,
 }
 
-#[derive(Component, Copy, Clone, Debug)]
+#[derive(Component, Copy, Clone, Debug, PartialEq, Eq)]
 #[component(storage = "SparseSet")]
 pub(super) struct NewDirection(Direction);
 
@@ -41,12 +41,14 @@ pub(super) fn apply_direction_system(
 pub(super) fn change_direction_system(
     mut commands: Commands,
     mut query: Query<(Entity, &ActionState<Direction>, Option<&Direction>), With<Snake>>,
+    audio: Res<Audio>,
+    audio_assets: Res<audio::Assets>,
 ) {
     let (snake, action_state, direction) = query.single_mut();
-    let new_direction = action_state.get_pressed().iter().cloned().last();
+    let new_direction = action_state.get_just_pressed().iter().cloned().last();
 
     if let Some(new_direction) = new_direction {
-        if let Some(current_direction) = direction {
+        if let Some(&current_direction) = direction {
             if let (Direction::Up, Direction::Down)
             | (Direction::Down, Direction::Up)
             | (Direction::Left, Direction::Right)
@@ -54,8 +56,13 @@ pub(super) fn change_direction_system(
             {
                 return;
             }
-        }
 
+            if new_direction == current_direction {
+                return;
+            }
+        }
+        
         commands.entity(snake).insert(NewDirection(new_direction));
+        audio.play(audio_assets.tick.clone());
     }
 }