[chore:] sound integration

core/src/main/java/com/fiewie/idlespaceshiptycoon/GameStage.java

@@ -19,6 +19,7 @@ import com.badlogic.gdx.math.MathUtils;
 import com.badlogic.gdx.math.Rectangle;
 import com.badlogic.gdx.physics.box2d.ContactImpulse;
 import com.fiewie.idlespaceshiptycoon.gameobjects.SpaceShip;
+import com.fiewie.idlespaceshiptycoon.logic.SoundManager;
 import com.fiewie.idlespaceshiptycoon.gameobjects.Enemy;
 import com.fiewie.idlespaceshiptycoon.gameobjects.Background;
 import com.fiewie.idlespaceshiptycoon.gameobjects.BackgroundManager;
@@ -125,6 +126,7 @@ public class GameStage extends Stage {
                 ship.coins++;
                 coin.remove();
                 coins.removeValue(coin, true);
+                SoundManager.getInstance().playSound("sounds/coin.mp3");
             }
         }
         for (Enemy enemy : enemies) {
@@ -134,6 +136,7 @@ public class GameStage extends Stage {
                 isGameOver = ship.takeDamage(enemy.damage);
                 enemy.remove();
                 enemies.removeValue(enemy, true);
+                SoundManager.getInstance().playSound("sounds/enemy_dead.wav");
             }
             
             for (Bullet bullet : bullets) {
@@ -143,6 +146,9 @@ public class GameStage extends Stage {
                         enemy.remove();
                         enemies.removeValue(enemy, true);
                         score += enemy.score;
+                        SoundManager.getInstance().playSound("sounds/enemy_dead_2.wav");
+                    } else {
+                        //SoundManager.getInstance().playSound("sounds/enemy_dead_2.wav");
                     }
                     
                     bullet.remove();
@@ -156,6 +162,7 @@ public class GameStage extends Stage {
     private void handleGameOver() {
         if (isGameOver) {
             System.out.println("Game Over!");
+            SoundManager.getInstance().playSound("sounds/game_over.wav");
             showGameOverMenu();
         }
     }

core/src/main/java/com/fiewie/idlespaceshiptycoon/gameobjects/SpaceShip.java

@@ -6,6 +6,7 @@ import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.Batch;
 import com.badlogic.gdx.math.Rectangle;
 import com.badlogic.gdx.scenes.scene2d.Actor;
+import com.fiewie.idlespaceshiptycoon.logic.SoundManager;
 
 public class SpaceShip extends Actor {
     private Texture texture;
@@ -31,6 +32,7 @@ public class SpaceShip extends Actor {
     }
 
     public Bullet shoot() {
+        SoundManager.getInstance().playSound("sounds/shot.wav");
         return new Bullet(getX(), getY() + getHeight());
     }