Pong/Assets/Scripts/Game/NewBall.cs

using UnityEngine;

namespace Game {

	public class NewBall : Collectable {

		public float permanentDuration;
		public float temporaryDuration;

		[ColorUsage(true, true)]
		public Color permanentColor;
		[ColorUsage(true, true)]
		public Color temporaryColor;
		
		private static readonly int BorderColor = Shader.PropertyToID("_BorderColor");

		public bool IsPermanent { get; set; }

		protected override void Setup() {
			GetComponent<SpriteRenderer>().material.SetColor(BorderColor, IsPermanent ? permanentColor : temporaryColor);
		}

		protected override float Duration() {
			return IsPermanent ? permanentDuration : temporaryDuration;
		}

		protected override void OnCollect(Player player) {
			GameManager.Singleton.SpawnBall(player, IsPermanent);
		}
	}
}