GameObject.BroadcastMessage

描述

Calls the method named methodName on every MonoBehaviour in this GameObject or any of its children.

通过使用零参数，该接收方法可选择忽略 /parameter/。 如果选项设置为 SendMessageOptions.RequireReceiver，则在任何组件均未拾取此消息时输出错误。

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        /// Calls the function ApplyDamage with a value of 5
        /// // Every script attached to the GameObject and all its children
        // that has a ApplyDamage function will be called.
        gameObject.BroadcastMessage("ApplyDamage", 5.0);
    }
}


public class Example2 : MonoBehaviour
{
    public void ApplyDamage(float damage)
    {
        print(damage);
    }
}