Pong/Assets/Scripts/Game/NewBall.cs

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);
		}
	}
}