using Core.Utilities;
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using UnityEngine;
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using UnityEngine.Events;
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using TowerDefense.Level;
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namespace TowerDefense.Towers
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{
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/// <summary>
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/// A helper component for self destruction
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/// </summary>
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public class SelfDestroyTimer : MonoBehaviour
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{
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/// <summary>
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/// The time before destruction
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/// </summary>
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public float time = 5;
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/// <summary>
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/// The controlling timer
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/// </summary>
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public Timer timer;
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/// <summary>
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/// The exposed death callback
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/// </summary>
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public UnityEvent death;
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/// <summary>
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/// 防止子弹飞到怪物出生点后面
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/// </summary>
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private float farthestZ;
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private void Start()
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{
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farthestZ = EndlessLevelManager.instance.StartingNodeList[0].transform.position.z + 3f;
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}
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/// <summary>
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/// Potentially initialize the time if necessary
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/// </summary>
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protected virtual void OnEnable()
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{
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if (timer == null)
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{
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timer = new Timer(time, OnTimeEnd);
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}
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else
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{
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timer.Reset();
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}
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}
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/// <summary>
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/// Update the timer
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/// </summary>
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protected virtual void Update()
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{
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if (timer == null)
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{
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return;
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}
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timer.Tick(Time.deltaTime);
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if (gameObject.transform.position.z >= farthestZ)
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OnTimeEnd();
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}
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/// <summary>
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/// Fires at the end of timer
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/// </summary>
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protected virtual void OnTimeEnd()
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{
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death.Invoke();
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Poolable.TryPool(gameObject);
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timer.Reset();
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}
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}
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}
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