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;

    }

}