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PPML

Pixel Place Map Loader

此脚本不应直接安装，它是一个供其他脚本使用的外部库。如果您需要使用该库，请在脚本元属性加入：// @require https://update.cn-greasyfork.org/scripts/443803/1050258/PPML.js 

  1. // ==UserScript==
  2. // @name         PPML
  3. // @description  Pixel Place Map Loader
  4. // @version      1.6.2
  5. // @author       0vC4
  6. // @namespace    https://greasyfork.org/users/670183
  7. // @match        https://pixelplace.io/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=pixelplace.io
  9. // @license      MIT
  10. // @grant        none
  11. // @run-at       document-start
  12. // ==/UserScript==
  13. (() => {
  14.     const PPClient = window.PPClient || {modules:{}};
  15.     window.PPClient = PPClient;
  16.     if ('MapLoader' in PPClient.modules) return;
  17.  
  18.     const module = {};
  19.     module.map = {};
  20.     module.maps = {};
  21.  
  22.     module.args = {};
  23.     module.config = ({colors}) => Object.assign(module.args, {colors});
  24.  
  25.     module.callbacks = [];
  26.     module.subscribe = func => module.callbacks.push(func);
  27.  
  28.     const Img = window.Image;
  29.     window.Image = function() {
  30.         const img = new Img(...arguments);
  31.   
  32.         Object.defineProperty(img, 'src', {
  33.             enumerable: true,
  34.             configurable: true,
  35.             set(val) {
  36.                 this.setAttribute('src', val);
  37.                 if (!val.match(/canvas\/\d+\.png\?/)) return;
  38.                 const serverId = +val.match(/canvas\/(\d+)\.png\?/)[1];
  39.   
  40.                 this.addEventListener('load', () => {
  41.                     const canvas = document.createElement('canvas');
  42.                     canvas.width = this.width;
  43.                     canvas.height = this.height;
  44.   
  45.                     const ctx = canvas.getContext('2d');
  46.                     ctx.drawImage(this, 0, 0);
  47.   
  48.                     const rgba = ctx.getImageData(0, 0, this.width, this.height).data;
  49.                     const pixels = new Uint8Array(rgba.length>>2);
  50.                     for (let i = 0; i < rgba.length; i += 4)
  51.                         pixels[i>>2] = module.args.colors.indexOf((rgba[i]<<16) + (rgba[i+1]<<8) + (rgba[i+2]));
  52.   
  53.                     const {width, height} = this;
  54.                     const map = {
  55.                         pixels, width, height, serverId,
  56.                         get(x,y) {
  57.                             return this.pixels[x+y*this.width];
  58.                         },
  59.                         set(x,y,pixel) {
  60.                             const offset = x+y*this.width;
  61.                             if (this.pixels[offset] == null) return;
  62.                             this.pixels[offset] = pixel;
  63.                         }
  64.                     };
  65.   
  66.                     if (!('serverId' in module.map)) Object.assign(module.map, map);
  67.                     if (!PPClient.map) PPClient.map = map;
  68.  
  69.                     if (!PPClient.maps) PPClient.maps = {};
  70.                     PPClient.maps[serverId] = map;
  71.                     module.maps[serverId] = map;
  72.  
  73.                     module.callbacks.map(f => f(module, map));
  74.                 });
  75.             }
  76.         });
  77.   
  78.         return img;
  79.     };
  80.     Object.assign(Image, Img);
  81.     for (let k in Img.prototype) try {Image.prototype[k] = Img.prototype[k];} catch (e) {};
  82.  
  83.     PPClient.modules.MapLoader = module;
  84. })();
  85. // 0vC4#7152