Added snow ball design and animation to slow effect projectile

source/core/assets/images/projectiles/snow_ball.atlas

@@ -0,0 +1,48 @@
+
+snow_ball.png
+size: 128, 32
+format: RGBA8888
+filter: Nearest, Nearest
+repeat: none
+projectile
+  rotate: false
+  xy: 20, 2
+  size: 16, 19
+  orig: 16, 19
+  offset: 0, 0
+  index: -1
+projectile
+  rotate: false
+  xy: 56, 2
+  size: 16, 19
+  orig: 16, 19
+  offset: 0, 0
+  index: -1
+projectile
+  rotate: false
+  xy: 38, 2
+  size: 16, 19
+  orig: 16, 19
+  offset: 0, 0
+  index: -1
+projectileFinal
+  rotate: false
+  xy: 2, 2
+  size: 16, 19
+  orig: 16, 19
+  offset: 0, 0
+  index: -1
+collision
+  rotate: false
+  xy: 92, 3
+  size: 16, 18
+  orig: 16, 18
+  offset: 0, 0
+  index: -1
+collision
+  rotate: false
+  xy: 74, 3
+  size: 16, 18
+  orig: 16, 18
+  offset: 0, 0
+  index: -1

source/core/src/main/com/csse3200/game/areas/ForestGameArea.java

@@ -101,7 +101,9 @@ public class ForestGameArea extends GameArea {
           "images/projectiles/basic_projectile.png",
           "images/projectiles/mobProjectile.png",
           "images/projectiles/engineer_projectile.png",
-          "images/projectiles/mobKing_projectile.png"
+          "images/projectiles/mobKing_projectile.png",
+          "images/projectiles/snow_ball.png"
+
   };
   private static final String[] forestTextureAtlases = {
           "images/economy/econ-tower.atlas",
@@ -117,7 +119,8 @@ public class ForestGameArea extends GameArea {
           "images/projectiles/basic_projectile.atlas",
           "images/projectiles/mobProjectile.atlas",
           "images/projectiles/engineer_projectile.atlas",
-          "images/projectiles/mobKing_projectile.atlas"
+          "images/projectiles/mobKing_projectile.atlas",
+          "images/projectiles/snow_ball.atlas"
   };
   private static final String[] forestSounds = {
           "sounds/Impact4.ogg",
@@ -168,10 +171,10 @@ public void create() {
     playMusic();
 
     // Types of projectile
-    spawnEffectProjectile(new Vector2(0, 10), PhysicsLayer.HUMANS, towardsMobs, new Vector2(2f, 2f), ProjectileEffects.BURN, true);
     spawnPierceFireBall(new Vector2(2, 3), PhysicsLayer.NPC, towardsMobs, new Vector2(2f, 2f));
     spawnRicochetFireball(new Vector2(2, 4), PhysicsLayer.NPC, towardsMobs, new Vector2(2f, 2f));
     spawnSplitFireWorksFireBall(new Vector2(2, 5), PhysicsLayer.NPC, towardsMobs, new Vector2(2f, 2f), 12);
+    spawnEffectProjectile(new Vector2(2, 6), PhysicsLayer.NPC, towardsMobs, new Vector2(2f, 2f), ProjectileEffects.SLOW, false);
     // spawnProjectileTest(new Vector2(0, 8), PhysicsLayer.NPC, towardsMobs, new Vector2(2f, 2f));
 
     spawnXenoGrunts();

source/core/src/main/com/csse3200/game/components/projectile/SnowBallProjectileAnimationController.java

@@ -0,0 +1,31 @@
+package com.csse3200.game.components.projectile;
+
+import com.csse3200.game.components.Component;
+import com.csse3200.game.rendering.AnimationRenderComponent;
+
+public class SnowBallProjectileAnimationController extends Component{
+    private static final String START = "startProjectile";
+    private static final String FINAL = "startProjectileFinal";
+
+    /** Animation name constants */
+    private static final String START_ANIM = "projectile";
+    private static final String FINAL_ANIM = "projectileFinal";
+    AnimationRenderComponent animator;
+
+    @Override
+    public void create() {
+        super.create();
+        animator = this.entity.getComponent(AnimationRenderComponent.class);
+        entity.getEvents().addListener(START, this::animateStart);
+        entity.getEvents().addListener(FINAL, this::animateFinal);
+
+    }
+
+    void animateStart() {
+        animator.startAnimation(START_ANIM);
+    }
+
+    void animateFinal() {
+        animator.startAnimation(FINAL_ANIM);
+    }
+}

source/core/src/main/com/csse3200/game/entities/factories/ProjectileFactory.java

@@ -28,6 +28,7 @@
 import com.csse3200.game.components.projectile.EngineerBulletsAnimationControlller;
 import com.csse3200.game.components.projectile.MobProjectileAnimationController;
 import com.csse3200.game.components.projectile.ProjectileAnimationController;
+import com.csse3200.game.components.projectile.SnowBallProjectileAnimationController;
 
 /**
  * Responsible for creating projectiles within the game.
@@ -53,7 +54,7 @@ public class ProjectileFactory {
    * @return Returns a new single-target projectile entity
    */
   public static Entity createEffectProjectile(short targetLayer, Vector2 destination, Vector2 speed, ProjectileEffects effect, boolean aoe) {
-    Entity projectile = createFireBall(targetLayer, destination, speed);
+    Entity projectile = createBaseProjectile(targetLayer, destination, speed);
 
     switch(effect) {
       case FIREBALL -> {
@@ -64,6 +65,21 @@ public static Entity createEffectProjectile(short targetLayer, Vector2 destinati
       }
       case SLOW -> {
         projectile.addComponent(new EffectsComponent(targetLayer, 3, ProjectileEffects.SLOW, aoe));
+        AnimationRenderComponent animator =
+            new AnimationRenderComponent(
+                    ServiceLocator.getResourceService()
+                            .getAsset("images/projectiles/snow_ball.atlas", TextureAtlas.class));
+        animator.addAnimation(START_ANIM, START_SPEED, Animation.PlayMode.NORMAL);
+        animator.addAnimation(FINAL_ANIM, FINAL_SPEED, Animation.PlayMode.NORMAL);
+
+      projectile
+          .addComponent(animator)
+          .addComponent(new SnowBallProjectileAnimationController());
+        // * TEMPORARY
+        // .addComponent(new DeleteOnMapEdgeComponent());
+        // .addComponent(new SelfDestructOnHitComponent(PhysicsLayer.OBSTACLE));
+
+        return projectile;
       }
       case STUN -> {
         projectile.addComponent(new EffectsComponent(targetLayer, 3, ProjectileEffects.STUN, aoe));