60 lines
1.4 KiB
C#
60 lines
1.4 KiB
C#
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using UnityEngine;
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/// <summary>
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/// 物理模拟器脚本
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/// </summary>
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public class PhysicsRootScript : MonoBehaviour
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{
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//保存唯一对象
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private static PhysicsRootScript instance;
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//累计时间
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private float _timer;
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//物理模拟的时间,-1:表示每帧只模拟器一次 ,默认的情况可以使用Time.fixedDeltaTime
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public float FixedDeltaTime = -1;
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private void Start()
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{
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if (instance != null)
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{
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//把原来的给删除掉,使用新的
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Destroy(instance);
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instance = null;
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}
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instance = this;
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}
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private void Update()
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{
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//如果autoSimulation被设置为enabled,不进行处理
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if (Physics.autoSimulation)
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return;
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if (FixedDeltaTime <= 0)
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{
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Physics.Simulate(Time.deltaTime);
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}
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else
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{
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_timer += Time.deltaTime;
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while (_timer >= FixedDeltaTime)
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{
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_timer -= FixedDeltaTime;
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Physics.Simulate(FixedDeltaTime);
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}
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}
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}
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//静态函数 启动模拟
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public static void StartSimulate()
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{
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if (instance == null)
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{
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var go = new GameObject("[PhysicsRoot]");
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go.AddComponent<PhysicsRootScript>();
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DontDestroyOnLoad(go);
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}
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}
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}
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