Version: 2022.3


public void BroadcastMessage (string methodName, object parameter= null, SendMessageOptions options= SendMessageOptions.RequireReceiver);


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); } }