Version: 2020.2
LanguageEnglish
  • C#

Component.BroadcastMessage

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

Parameters

methodName Name of the method to call.
parameter Optional parameter to pass to the method (can be any value).
options Should an error be raised if the method does not exist for a given target object?

Description

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

The receiving method can choose to ignore parameter by having zero arguments. if options is set to SendMessageOptions.RequireReceiver an error is printed when the message is not picked up by any component.

using UnityEngine;

public class Example : MonoBehaviour { void Start() { /// Calls the function ApplyDamage with a value of 5 BroadcastMessage("ApplyDamage", 5.0); }

// Every script attached to the game object and all its children // that has a ApplyDamage function will be called. void ApplyDamage(float damage) { print(damage); } }
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