mirror of
https://github.com/photonstorm/phaser
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703 lines
22 KiB
JavaScript
703 lines
22 KiB
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2016 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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/**
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* Phaser.TilemapParser parses data objects from Phaser.Loader that need more preparation before they can be inserted into a Tilemap.
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*
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* @class Phaser.TilemapParser
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* @static
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*/
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Phaser.TilemapParser = {
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/**
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* When scanning the Tiled map data the TilemapParser can either insert a null value (true) or
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* a Phaser.Tile instance with an index of -1 (false, the default). Depending on your game type
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* depends how this should be configured. If you've a large sparsely populated map and the tile
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* data doesn't need to change then setting this value to `true` will help with memory consumption.
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* However if your map is small, or you need to update the tiles (perhaps the map dynamically changes
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* during the game) then leave the default value set.
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*
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* @constant
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* @type {boolean}
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*/
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INSERT_NULL: false,
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/**
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* Parse tilemap data from the cache and creates data for a Tilemap object.
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*
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* @method Phaser.TilemapParser.parse
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* @param {Phaser.Game} game - Game reference to the currently running game.
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* @param {string} key - The key of the tilemap in the Cache.
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* @param {number} [tileWidth=32] - The pixel width of a single map tile. If using CSV data you must specify this. Not required if using Tiled map data.
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* @param {number} [tileHeight=32] - The pixel height of a single map tile. If using CSV data you must specify this. Not required if using Tiled map data.
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* @param {number} [width=10] - The width of the map in tiles. If this map is created from Tiled or CSV data you don't need to specify this.
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* @param {number} [height=10] - The height of the map in tiles. If this map is created from Tiled or CSV data you don't need to specify this.
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* @return {object} The parsed map object.
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*/
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parse: function (game, key, tileWidth, tileHeight, width, height) {
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if (tileWidth === undefined) { tileWidth = 32; }
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if (tileHeight === undefined) { tileHeight = 32; }
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if (width === undefined) { width = 10; }
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if (height === undefined) { height = 10; }
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if (key === undefined)
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{
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return this.getEmptyData();
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}
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if (key === null)
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{
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return this.getEmptyData(tileWidth, tileHeight, width, height);
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}
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var map = game.cache.getTilemapData(key);
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if (map)
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{
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if (map.format === Phaser.Tilemap.CSV)
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{
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return this.parseCSV(key, map.data, tileWidth, tileHeight);
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}
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else if (!map.format || map.format === Phaser.Tilemap.TILED_JSON)
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{
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return this.parseTiledJSON(map.data);
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}
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}
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else
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{
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console.warn('Phaser.TilemapParser.parse - No map data found for key ' + key);
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}
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},
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/**
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* Parses a CSV file into valid map data.
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*
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* @method Phaser.TilemapParser.parseCSV
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* @param {string} key - The name you want to give the map data.
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* @param {string} data - The CSV file data.
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* @param {number} [tileWidth=32] - The pixel width of a single map tile. If using CSV data you must specify this. Not required if using Tiled map data.
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* @param {number} [tileHeight=32] - The pixel height of a single map tile. If using CSV data you must specify this. Not required if using Tiled map data.
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* @return {object} Generated map data.
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*/
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parseCSV: function (key, data, tileWidth, tileHeight) {
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var map = this.getEmptyData();
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// Trim any rogue whitespace from the data
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data = data.trim();
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var output = [];
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var rows = data.split("\n");
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var height = rows.length;
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var width = 0;
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for (var y = 0; y < rows.length; y++)
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{
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output[y] = [];
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var column = rows[y].split(",");
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for (var x = 0; x < column.length; x++)
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{
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output[y][x] = new Phaser.Tile(map.layers[0], parseInt(column[x], 10), x, y, tileWidth, tileHeight);
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}
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if (width === 0)
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{
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width = column.length;
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}
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}
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map.format = Phaser.Tilemap.CSV;
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map.name = key;
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map.width = width;
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map.height = height;
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map.tileWidth = tileWidth;
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map.tileHeight = tileHeight;
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map.widthInPixels = width * tileWidth;
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map.heightInPixels = height * tileHeight;
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map.layers[0].width = width;
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map.layers[0].height = height;
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map.layers[0].widthInPixels = map.widthInPixels;
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map.layers[0].heightInPixels = map.heightInPixels;
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map.layers[0].data = output;
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return map;
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},
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/**
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* Returns an empty map data object.
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*
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* @method Phaser.TilemapParser.getEmptyData
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* @return {object} Generated map data.
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*/
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getEmptyData: function (tileWidth, tileHeight, width, height) {
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return {
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width: (width !== undefined && width !== null) ? width : 0,
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height: (height !== undefined && height !== null) ? height : 0,
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tileWidth: (tileWidth !== undefined && tileWidth !== null) ? tileWidth : 0,
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tileHeight: (tileHeight !== undefined && tileHeight !== null) ? tileHeight : 0,
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orientation: 'orthogonal',
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version: '1',
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properties: {},
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widthInPixels: 0,
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heightInPixels: 0,
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layers: [
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{
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name: 'layer',
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x: 0,
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y: 0,
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width: 0,
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height: 0,
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widthInPixels: 0,
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heightInPixels: 0,
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alpha: 1,
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visible: true,
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properties: {},
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indexes: [],
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callbacks: [],
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bodies: [],
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data: []
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}
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],
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images: [],
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objects: {},
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collision: {},
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tilesets: [],
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tiles: []
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};
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},
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/**
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* Parses a Tiled JSON file into valid map data.
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* @method Phaser.TilemapParser.parseJSON
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* @param {object} json - The JSON map data.
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* @return {object} Generated and parsed map data.
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*/
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parseTiledJSON: function (json) {
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if (json.orientation !== 'orthogonal')
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{
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console.warn('TilemapParser.parseTiledJSON - Only orthogonal map types are supported in this version of Phaser');
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return null;
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}
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// Map data will consist of: layers, objects, images, tilesets, sizes
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var map = {
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width: json.width,
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height: json.height,
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tileWidth: json.tilewidth,
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tileHeight: json.tileheight,
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orientation: json.orientation,
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format: Phaser.Tilemap.TILED_JSON,
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version: json.version,
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properties: json.properties,
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widthInPixels: json.width * json.tilewidth,
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heightInPixels: json.height * json.tileheight
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};
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// Tile Layers
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var layers = [];
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for (var i = 0; i < json.layers.length; i++)
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{
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if (json.layers[i].type !== 'tilelayer')
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{
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continue;
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}
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var curl = json.layers[i];
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// Base64 decode data if necessary
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// NOTE: uncompressed base64 only.
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if (!curl.compression && curl.encoding && curl.encoding === 'base64')
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{
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var binaryString = window.atob(curl.data);
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var len = binaryString.length;
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var bytes = new Array(len);
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// Interpret binaryString as an array of bytes representing
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// little-endian encoded uint32 values.
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for (var j = 0; j < len; j+=4)
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{
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bytes[j / 4] = (
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binaryString.charCodeAt(j) |
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binaryString.charCodeAt(j + 1) << 8 |
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binaryString.charCodeAt(j + 2) << 16 |
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binaryString.charCodeAt(j + 3) << 24
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) >>> 0;
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}
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curl.data = bytes;
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delete curl.encoding;
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}
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else if (curl.compression)
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{
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console.warn('TilemapParser.parseTiledJSON - Layer compression is unsupported, skipping layer \'' + curl.name + '\'');
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continue;
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}
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var layer = {
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name: curl.name,
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x: curl.x,
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y: curl.y,
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width: curl.width,
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height: curl.height,
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widthInPixels: curl.width * json.tilewidth,
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heightInPixels: curl.height * json.tileheight,
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alpha: curl.opacity,
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visible: curl.visible,
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properties: {},
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indexes: [],
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callbacks: [],
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bodies: []
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};
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if (curl.properties)
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{
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layer.properties = curl.properties;
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}
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var x = 0;
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var row = [];
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var output = [];
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var rotation, flipped, flippedVal, gid;
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// Loop through the data field in the JSON.
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// This is an array containing the tile indexes, one after the other. -1 = no tile, everything else = the tile index (starting at 1 for Tiled, 0 for CSV)
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// If the map contains multiple tilesets then the indexes are relative to that which the set starts from.
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// Need to set which tileset in the cache = which tileset in the JSON, if you do this manually it means you can use the same map data but a new tileset.
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for (var t = 0, len = curl.data.length; t < len; t++)
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{
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rotation = 0;
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flipped = false;
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gid = curl.data[t];
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flippedVal = 0;
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// If true the current tile is flipped or rotated (Tiled TMX format)
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if (gid > 0x20000000)
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{
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// FlippedX
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if (gid > 0x80000000)
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{
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gid -= 0x80000000;
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flippedVal += 4;
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}
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// FlippedY
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if (gid > 0x40000000)
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{
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gid -= 0x40000000;
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flippedVal += 2;
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}
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// FlippedAD (anti-diagonal = top-right is swapped with bottom-left corners)
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if (gid > 0x20000000)
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{
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gid -= 0x20000000;
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flippedVal += 1;
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}
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switch (flippedVal)
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{
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case 5:
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rotation = Math.PI / 2;
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break;
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case 6:
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rotation = Math.PI;
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break;
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case 3:
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rotation = 3 * Math.PI / 2;
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break;
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case 4:
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rotation = 0;
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flipped = true;
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break;
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case 7:
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rotation = Math.PI / 2;
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flipped = true;
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break;
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case 2:
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rotation = Math.PI;
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flipped = true;
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break;
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case 1:
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rotation = 3 * Math.PI / 2;
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flipped = true;
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break;
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}
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}
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// index, x, y, width, height
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if (gid > 0)
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{
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var tile = new Phaser.Tile(layer, gid, x, output.length, json.tilewidth, json.tileheight);
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tile.rotation = rotation;
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tile.flipped = flipped;
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if (flippedVal !== 0)
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{
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// The WebGL renderer uses this to flip UV coordinates before drawing
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tile.flippedVal = flippedVal;
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}
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row.push(tile);
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}
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else
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{
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if (Phaser.TilemapParser.INSERT_NULL)
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{
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row.push(null);
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}
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else
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{
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row.push(new Phaser.Tile(layer, -1, x, output.length, json.tilewidth, json.tileheight));
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}
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}
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x++;
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if (x === curl.width)
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{
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output.push(row);
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x = 0;
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row = [];
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}
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}
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layer.data = output;
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layers.push(layer);
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}
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map.layers = layers;
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// Images
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var images = [];
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for (var i = 0; i < json.layers.length; i++)
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{
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if (json.layers[i].type !== 'imagelayer')
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{
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continue;
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}
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var curi = json.layers[i];
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var image = {
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name: curi.name,
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image: curi.image,
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x: curi.x,
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y: curi.y,
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alpha: curi.opacity,
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visible: curi.visible,
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properties: {}
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};
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if (curi.properties)
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{
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image.properties = curi.properties;
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}
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images.push(image);
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}
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map.images = images;
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// Tilesets & Image Collections
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var tilesets = [];
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var imagecollections = [];
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var lastSet = null;
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for (var i = 0; i < json.tilesets.length; i++)
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{
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// name, firstgid, width, height, margin, spacing, properties
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var set = json.tilesets[i];
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if (set.image)
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{
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var newSet = new Phaser.Tileset(set.name, set.firstgid, set.tilewidth, set.tileheight, set.margin, set.spacing, set.properties);
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if (set.tileproperties)
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{
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newSet.tileProperties = set.tileproperties;
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}
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// For a normal sliced tileset the row/count/size information is computed when updated.
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// This is done (again) after the image is set.
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newSet.updateTileData(set.imagewidth, set.imageheight);
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tilesets.push(newSet);
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}
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else
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{
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var newCollection = new Phaser.ImageCollection(set.name, set.firstgid, set.tilewidth, set.tileheight, set.margin, set.spacing, set.properties);
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for (var ti in set.tiles)
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{
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var image = set.tiles[ti].image;
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var gid = set.firstgid + parseInt(ti, 10);
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newCollection.addImage(gid, image);
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}
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imagecollections.push(newCollection);
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}
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// We've got a new Tileset, so set the lastgid into the previous one
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if (lastSet)
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{
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lastSet.lastgid = set.firstgid - 1;
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}
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lastSet = set;
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}
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map.tilesets = tilesets;
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map.imagecollections = imagecollections;
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// Objects & Collision Data (polylines, etc)
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var objects = {};
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var collision = {};
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function slice (obj, fields) {
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var sliced = {};
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for (var k in fields)
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{
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var key = fields[k];
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if (typeof obj[key] !== 'undefined')
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{
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sliced[key] = obj[key];
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}
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}
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return sliced;
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}
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for (var i = 0; i < json.layers.length; i++)
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{
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if (json.layers[i].type !== 'objectgroup')
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{
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continue;
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}
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var curo = json.layers[i];
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objects[curo.name] = [];
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collision[curo.name] = [];
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for (var v = 0, len = curo.objects.length; v < len; v++)
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{
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// Object Tiles
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if (curo.objects[v].gid)
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{
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var object = {
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gid: curo.objects[v].gid,
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name: curo.objects[v].name,
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type: curo.objects[v].hasOwnProperty("type") ? curo.objects[v].type : "",
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x: curo.objects[v].x,
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y: curo.objects[v].y,
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visible: curo.objects[v].visible,
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properties: curo.objects[v].properties
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};
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if (curo.objects[v].rotation)
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{
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object.rotation = curo.objects[v].rotation;
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}
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objects[curo.name].push(object);
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}
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else if (curo.objects[v].polyline)
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{
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var object = {
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name: curo.objects[v].name,
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type: curo.objects[v].type,
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x: curo.objects[v].x,
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y: curo.objects[v].y,
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width: curo.objects[v].width,
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height: curo.objects[v].height,
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visible: curo.objects[v].visible,
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properties: curo.objects[v].properties
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};
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if (curo.objects[v].rotation)
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{
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object.rotation = curo.objects[v].rotation;
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}
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object.polyline = [];
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// Parse the polyline into an array
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for (var p = 0; p < curo.objects[v].polyline.length; p++)
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{
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object.polyline.push([ curo.objects[v].polyline[p].x, curo.objects[v].polyline[p].y ]);
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}
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collision[curo.name].push(object);
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objects[curo.name].push(object);
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}
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// polygon
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else if (curo.objects[v].polygon)
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{
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var object = slice(curo.objects[v], ['name', 'type', 'x', 'y', 'visible', 'rotation', 'properties']);
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|
|
// Parse the polygon into an array
|
|
object.polygon = [];
|
|
|
|
for (var p = 0; p < curo.objects[v].polygon.length; p++)
|
|
{
|
|
object.polygon.push([curo.objects[v].polygon[p].x, curo.objects[v].polygon[p].y]);
|
|
}
|
|
|
|
objects[curo.name].push(object);
|
|
|
|
}
|
|
// ellipse
|
|
else if (curo.objects[v].ellipse)
|
|
{
|
|
var object = slice(curo.objects[v], ['name', 'type', 'ellipse', 'x', 'y', 'width', 'height', 'visible', 'rotation', 'properties']);
|
|
objects[curo.name].push(object);
|
|
}
|
|
// otherwise it's a rectangle
|
|
else
|
|
{
|
|
var object = slice(curo.objects[v], ['name', 'type', 'x', 'y', 'width', 'height', 'visible', 'rotation', 'properties']);
|
|
object.rectangle = true;
|
|
objects[curo.name].push(object);
|
|
}
|
|
}
|
|
}
|
|
|
|
map.objects = objects;
|
|
map.collision = collision;
|
|
|
|
map.tiles = [];
|
|
|
|
// Finally lets build our super tileset index
|
|
for (var i = 0; i < map.tilesets.length; i++)
|
|
{
|
|
var set = map.tilesets[i];
|
|
|
|
var x = set.tileMargin;
|
|
var y = set.tileMargin;
|
|
|
|
var count = 0;
|
|
var countX = 0;
|
|
var countY = 0;
|
|
|
|
for (var t = set.firstgid; t < set.firstgid + set.total; t++)
|
|
{
|
|
// Can add extra properties here as needed
|
|
map.tiles[t] = [x, y, i];
|
|
|
|
x += set.tileWidth + set.tileSpacing;
|
|
|
|
count++;
|
|
|
|
if (count === set.total)
|
|
{
|
|
break;
|
|
}
|
|
|
|
countX++;
|
|
|
|
if (countX === set.columns)
|
|
{
|
|
x = set.tileMargin;
|
|
y += set.tileHeight + set.tileSpacing;
|
|
|
|
countX = 0;
|
|
countY++;
|
|
|
|
if (countY === set.rows)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// assign tile properties
|
|
|
|
var layer;
|
|
var tile;
|
|
var sid;
|
|
var set;
|
|
|
|
// go through each of the map data layers
|
|
for (var i = 0; i < map.layers.length; i++)
|
|
{
|
|
layer = map.layers[i];
|
|
|
|
set = null;
|
|
|
|
// rows of tiles
|
|
for (var j = 0; j < layer.data.length; j++)
|
|
{
|
|
row = layer.data[j];
|
|
|
|
// individual tiles
|
|
for (var k = 0; k < row.length; k++)
|
|
{
|
|
tile = row[k];
|
|
|
|
if (tile === null || tile.index < 0)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
// find the relevant tileset
|
|
|
|
sid = map.tiles[tile.index][2];
|
|
set = map.tilesets[sid];
|
|
|
|
|
|
// if that tile type has any properties, add them to the tile object
|
|
|
|
if (set.tileProperties && set.tileProperties[tile.index - set.firstgid])
|
|
{
|
|
tile.properties = Phaser.Utils.mixin(set.tileProperties[tile.index - set.firstgid], tile.properties);
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
return map;
|
|
|
|
}
|
|
|
|
};
|