Unity之定时调用

1.Invoke(string methodName,float time)在一定时间调用methodName函数
using UnityEngine;
using System.Collections;
 
public class example : MonoBehaviour {
    public Rigidbody projectile;
    void LaunchProjectile() {
        Rigidbody instance = Instantiate(projectile);
        instance.velocity = Random.insideUnitSphere * 5;
    }
    public void Awake() {
        Invoke("LaunchProjectile", 2);
    }
}
 
2.InvokeRepeating(string methodName,float time,float repeatRate)每隔一定时间调用一次methodName函数
Invokes the method methodName in time seconds.
在time秒调用methodName方法；简单说，根据时间调用指定方法名的方法
After the first invocation repeats calling that function every repeatRate seconds.
从第一次调用开始,每隔repeatRate时间调用一次.
using UnityEngine;
using System.Collections;
 
public class example : MonoBehaviour {
    public Rigidbody projectile;
    void LaunchProjectile() {
        Rigidbody instance = Instantiate(projectile);
        instance.velocity = Random.insideUnitSphere * 5;
    }
    public void Awake() {
        InvokeRepeating("LaunchProjectile", 2, 0.3F);  //2秒后，没0.3f调用一次
    }
}
 
3.CancelInvoke(string methodName)取消这个脚本中所有的调用
Cancels all Invoke calls on this MonoBehaviour.
取消这个MonoBehaviour上的所有调用。
public class example : MonoBehaviour {
    public Rigidbody projectile;
    void Update() {
        if (Input.GetButton("Fire1"))
            CancelInvoke();
 
    }
    void LaunchProjectile() {
        instance = Instantiate(projectile);
        instance.velocity = Random.insideUnitSphere * 5;
    }
    public void Awake() {
        InvokeRepeating("LaunchProjectile", 2, 0.3F);
    }
}
 
function LaunchProjectile () {
    instance = Instantiate(projectile);
    instance.velocity = Random.insideUnitSphere * 5;
}
 
4.(bool) IsInvoking(string methodName)using UnityEngine;
using System.Collections;
 
public class example : MonoBehaviour {
    public Rigidbody projectile;
    void Update() {
        if (Input.GetKeyDown(KeyCode.Space) && !IsInvoking("LaunchProjectile"))  //如果这个方法不在调用并且等待了2秒
            Invoke("LaunchProjectile", 2);
 
    }
    void LaunchProjectile() {
        Rigidbody instance = Instantiate(projectile);
        instance.velocity = Random.insideUnitSphere * 5;
    }
}