├── index.js └── readme.md /index.js: -------------------------------------------------------------------------------- 1 | const ArgumentType = require('../../extension-support/argument-type'); 2 | const BlockType = require('../../extension-support/block-type'); 3 | const formatMessage = require('format-message'); 4 | 5 | /** 6 | * Icon svg to be displayed at the left edge of each extension block, encoded as a data URI. 7 | * @type {string} 8 | */ 9 | // eslint-disable-next-line max-len 10 | // const blockIconURI = 'data:image/svg+xml;base64,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'; 11 | const blockIconURI = 'data:image/svg+xml;base64,<?xml version="1.0" encoding="UTF-8"?>
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'; 12 | const menuIconURI = blockIconURI; 13 | 14 | class Scratch3HelloBlocks { 15 | constructor (runtime) { 16 | /** 17 | * The runtime instantiating this block package. 18 | * @type {Runtime} 19 | */ 20 | this.runtime = runtime; 21 | } 22 | 23 | 24 | /** 25 | * The key to load & store a target's pen-related state. 26 | * @type {string} 27 | */ 28 | static get STATE_KEY () { 29 | return 'Scratch.helloWorld'; 30 | } 31 | 32 | /** 33 | * @returns {object} metadata for this extension and its blocks. 34 | */ 35 | getInfo () { 36 | return { 37 | id: 'helloWorld', 38 | name: formatMessage({ 39 | id: 'helloWorld.categoryName', 40 | default: 'hello World', 41 | description: 'Label for the hello world extension category' 42 | }), 43 | menuIconURI: menuIconURI, 44 | blockIconURI: blockIconURI, 45 | // showStatusButton: true, 46 | blocks: [ 47 | { 48 | opcode: 'say', 49 | blockType: BlockType.COMMAND, 50 | text: formatMessage({ 51 | id: 'helloWorld.say', 52 | default: 'say [TEXT]', 53 | description: 'say something' 54 | }), 55 | arguments: { 56 | TEXT: { 57 | type: ArgumentType.STRING, 58 | defaultValue: formatMessage({ 59 | id: 'helloWorld.defaultTextToSay', 60 | default: 'hello world', 61 | description: 'default text to say.' 62 | }) 63 | } 64 | } 65 | } 66 | ], 67 | menus: {} 68 | }; 69 | } 70 | 71 | say (args, util) { 72 | const message = args.TEXT; 73 | console.log(message); 74 | this.runtime.emit('SAY', util.target, 'say', message); 75 | } 76 | } 77 | 78 | module.exports = Scratch3HelloBlocks; 79 | -------------------------------------------------------------------------------- /readme.md: -------------------------------------------------------------------------------- 1 | # scratch3_hello_world 2 | Your first Scratch3.0 extension. 3 | 4 | 5 | Tutorial: [创建你的第一个Scratch3.0 Extension](https://blog.just4fun.site/create-first-Scratch3-Extension.html) 6 | --------------------------------------------------------------------------------