Message

In the Cocos Creator, all interactions are done through Message.

The message needs to be defined in contributions before it can be used.

View public messages

In the top menu Developer -> Message List, the editor presets a Message Manager panel that displays public messages and descriptions of each function definition.

Define a message

{
    "name": "hello-world",
    "contributions": {
        "messages": {
            "messageName": {
                "public": false,
                "description": "",
                "doc": "",
                "methods": []
            }
        }
    }
}

public

Type {string} Optional

Whether to display this message externally, if true, the basic information of this message will be displayed on the message list interface.

description

Type {string} Optional

If public is true, some simple descriptions will be displayed in the message list, supporting i18n: key syntax.

doc

Type {string} Optional

If public is true, some documents of this message will be displayed, supporting i18n:key syntax.

This document is written and rendered in markdown format.

methods

Type {string[]} Optional

The method queue triggered by the message.

This is an array of strings. The strings are methods on the extension or panel.

If it is a method on the extension, directly define methodName, if you want to trigger a method on the panel, you must fill in panelName.methodName. For example, the ready method of the scene manager is scene:ready.

Define broadcast message

When developing an extension, you need to send some notifications to other extension after completing an action. If these notifications also need to be displayed on the Developer -> Message List panel, you can define the message like this:

{
    "name": "hello-world",
    "contributions": {
        "messages": {
            "hello-world:ready": {
                "public": true,
                "description": "hello-world ready notification"
            }
        }
    }
}

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