Created
February 7, 2020 08:40
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| export default class { | |
| constructor() { | |
| this.services = []; | |
| this.instances = []; | |
| } | |
| define(name, fn) { | |
| this.services[name] = fn; | |
| } | |
| geti(name) { | |
| if (this.instances[name]) { | |
| return this.instances[name]; | |
| } | |
| var fn = this.services[name]; | |
| this.instances[name] = fn(this); | |
| return this.instances[name]; | |
| } | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script type="module" src="./scripts/main.js"></script> | |
| </head> | |
| <body> | |
| <div id="openspace"></div> | |
| </body> | |
| </html> |
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| import Container from "./Container.js"; | |
| import Sticker from "./Sticker.js"; | |
| window.addEventListener( | |
| "load", | |
| function() { | |
| let c = new Container(); | |
| c.define( | |
| "openspace", | |
| function(c) { | |
| return document.getElementById("openspace"); | |
| }); | |
| c.define( | |
| "sticker", | |
| function(c) { | |
| return new Sticker(); | |
| }); | |
| c.geti("sticker").init(c.geti("openspace")); | |
| }); |
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| export default class { | |
| constructor() { | |
| this.canvas = null; | |
| } | |
| init(parent) { | |
| this.canvas = this.newCanvas(); | |
| parent.appendChild(this.canvas); | |
| this.draw(); | |
| } | |
| newCanvas() { | |
| let canvas = document.createElement("canvas"); | |
| canvas.width = 512; | |
| canvas.height = 512; | |
| canvas.id = "canvas"; | |
| canvas.style = "border:1px solid"; | |
| return canvas; | |
| } | |
| draw() { | |
| let gx = this.canvas.getContext("2d"); | |
| this.drawRuby(gx); | |
| this.drawStrawberry(gx); | |
| this.drawSample(gx); | |
| } | |
| drawRuby(gx) { | |
| gx.beginPath(); | |
| gx.moveTo(0, 200); | |
| gx.lineTo(200, 500); | |
| gx.lineTo(400, 200); | |
| gx.lineTo(300, 100); | |
| gx.lineTo(100, 100); | |
| gx.lineTo(0, 200); | |
| gx.fillStyle = "red"; | |
| gx.fill(); | |
| } | |
| drawStrawberry(gx) { | |
| gx.beginPath(); | |
| gx.moveTo(100, 100); | |
| gx.lineTo(50, 150); | |
| gx.lineTo(350, 150); | |
| gx.lineTo(300, 100); | |
| gx.moveTo(100, 100); | |
| gx.fillStyle = "green"; | |
| gx.fill(); | |
| } | |
| } |
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