new ball, collectable structure

Assets/Materials/Ball.mat

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Assets/Materials/NewBall.mat

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Assets/Prefabs/Collectables/NewBall.prefab.meta

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Assets/Scenes/Game.unity

@@ -1028,6 +1028,7 @@ MonoBehaviour:
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   - {fileID: 11400000, guid: c6de04aab82eeff81894387c19ac1310, type: 2}
   wormholePrefab: {fileID: 7486271855853268360, guid: bf48a6813e1f5a2f7a63fc5c413808cb, type: 3}
+  newBallPrefab: {fileID: 5863603256186968685, guid: 0b8e2f55b0355b500bb1a8ab627c8833, type: 3}
 --- !u!4 &2109945868
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Assets/Scripts/Game/Collectable.cs

@@ -1,8 +1,10 @@
+using System.Collections;
 using Unity.Netcode;
 using UnityEngine;
 
 namespace Game {
 	public abstract class Collectable : NetworkBehaviour {
+
 		private void OnTriggerEnter2D(Collider2D other) {
 			var player = other.GetComponent<Ball>().LastContactPlayer;
 			if (player != null) {
@@ -11,6 +13,14 @@ namespace Game {
 			}
 		}
 
+		private IEnumerator Start() {
+			Setup();
+			yield return new WaitForSeconds(Duration());
+			Destroy(gameObject);
+		}
+
+		protected abstract void Setup();
+		protected abstract float Duration();
 		protected abstract void OnCollect(Player collector);
 	}
 }

Assets/Scripts/Game/GameManager.cs

@@ -15,6 +15,7 @@ namespace Game {
 		public Object modificationPrefab;
 		public ModificationProperties[] modifications;
 		public Object wormholePrefab;
+		public Object newBallPrefab;
 
 		public static GameManager Singleton { get; private set; }
 
@@ -43,12 +44,14 @@ namespace Game {
 				SpawnModification();
 				yield return new WaitForSeconds(2);
 				SpawnWormhole();
+				yield return new WaitForSeconds(1);
+				SpawnNewBall();
 			}
 		}
 
 		private void SetupPlayers() {
-			Settings.Type = Type.Hybrid;
+			Settings.Type = Type.AI;
-			Settings.AIDifficulty = Difficulty.Hard;
+			Settings.AIDifficulty = Difficulty.VeryHard;
 
 			var p1Obj = Instantiate(playerPrefab);
 			var p2Obj = Instantiate(playerPrefab);
@@ -89,6 +92,11 @@ namespace Game {
 			Player2 = p2;
 		}
 
+		private void SpawnNewBall() {
+			var pos = new Vector2(Random.Range(0, Dimensions.Singleton.PlaySize.x) - Dimensions.Singleton.PlaySize.x / 2, Random.Range(-5, 5));
+			Instantiate(newBallPrefab, pos, Quaternion.identity).GetComponent<NewBall>().IsPermanent = Random.value > 0.8f;
+		}
+
 		private void SpawnWormhole() {
 			var pos = new Vector2(Random.Range(0, Dimensions.Singleton.PlaySize.x) - Dimensions.Singleton.PlaySize.x / 2, Random.Range(-5, 5));
 			Instantiate(wormholePrefab, pos, Quaternion.identity);

Assets/Scripts/Game/Modification.cs

@@ -7,14 +7,16 @@ namespace Game {
 
 		public ModificationProperties Properties { get; set; }
 
-		private IEnumerator Start() {
+		protected override void Setup() {
 			gameObject.AddComponent<SpriteRenderer>().sprite = Properties.image;
-			yield return new WaitForSeconds(Properties.pickupDuration);
-			Destroy(gameObject);
 		}
 		
 		protected override void OnCollect(Player collector) {
 			collector.StartCoroutine(collector.ProcessModification(Properties));
 		}
+
+		protected override float Duration() {
+			return Properties.pickupDuration;
+		}
 	}
 }

Assets/Scripts/Game/NewBall.cs

@@ -0,0 +1,37 @@
+using UnityEngine;
+
+namespace Game {
+
+	public class NewBall : Collectable {
+
+		public float permanentDuration;
+		public float temporaryDuration;
+
+		private bool isPermanent;
+		public bool IsPermanent {
+			private get => isPermanent;
+			set {
+				isPermanent = value;
+				const float intensity = 1f;
+				float factor = Mathf.Pow(2, intensity);
+				float r = value ? 1 : 0;
+				float g = 1;
+				float b = value ? 0 : 1;
+				Color borderColor = new Vector4(r, g, b, 1) * factor;
+				GetComponent<SpriteRenderer>().material.color = borderColor;
+			}
+		}
+
+		protected override void Setup() {
+			
+		}
+
+		protected override float Duration() {
+			return IsPermanent ? permanentDuration : temporaryDuration;
+		}
+
+		protected override void OnCollect(Player player) {
+			GameManager.Singleton.SpawnBall(player, isPermanent);
+		}
+	}
+}

Assets/Scripts/Game/NewBall.cs.meta

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Assets/Scripts/Game/Wormhole.cs

@@ -11,7 +11,7 @@ namespace Game {
 		private const float MaxSize = 10;
 
 		private float size;
-		public float Size {
+		private float Size {
 			get => size;
 			set {
 				size = value;
@@ -54,6 +54,7 @@ namespace Game {
 			yield return Grow(duration * 0.2f);
 			yield return new WaitForSeconds(duration * 0.7f);
 			yield return Shrink(duration * 0.1f);
+			Destroy(gameObject);
 		}
 
 		private void FixedUpdate() {