Pong/Assets/Scripts/Game/Modification.cs

using System;
using System.Collections;
using System.Collections.Generic;
using Unity.Netcode;
using UnityEngine;
using UnityEngine.UIElements;

namespace Game {

	public enum ModType { Nerf, Buff }
	public enum ModEffect { Speed, Border }
	
	public struct ModificationProperties {
		public ModType Type { get; set; }
		public ModEffect Effect { get; set; }

		public float PickupDuration { get; set; }

		public float ActiveDuration { get; set; }
	}

	public class ActiveModification {
		public ModificationProperties Properties { get; set; }

		public IEnumerator Process(VisualElement panel, List<ActiveModification> modifications) {
			modifications.Add(this);
			VisualElement element = GameUI.AddModification(panel, this);
			
			yield return new WaitForSeconds(Properties.ActiveDuration);
			
			element.RemoveFromHierarchy();
			modifications.Remove(this);
		}
	}
	
	public class Modification : NetworkBehaviour {

		public ModificationProperties Properties { get; set; }

		private IEnumerator Start() {
			yield return new WaitForSeconds(Properties.PickupDuration);
			Destroy(gameObject);
		}

		private void OnTriggerEnter2D(Collider2D other) {
			Player p = other.GetComponent<Ball>().LastContactPlayer;
			if (p != null) {
				Destroy(gameObject);
				ActiveModification mod = new() {Properties = Properties};
				StartCoroutine(mod.Process(p.Panel, p.Modifications));
			}
		}
	}

}