phaser/src/tilemap/TilemapParser.js

Phaser.TilemapParser = {

	tileset: function (game, key, tileWidth, tileHeight, tileMax) {

	    //  How big is our image?
	    var img = game.cache.getTilesetImage(key);

	    if (img == null)
	    {
	        return null;
	    }

	    var width = img.width;
	    var height = img.height;

	    if (tileWidth <= 0)
	    {
	        tileWidth = Math.floor(-width / Math.min(-1, tileWidth));
	    }

	    if (tileHeight <= 0)
	    {
	        tileHeight = Math.floor(-height / Math.min(-1, tileHeight));
	    }

	    var row = Math.round(width / tileWidth);
	    var column = Math.round(height / tileHeight);
	    var total = row * column;
	    
	    if (tileMax !== -1)
	    {
	        total = tileMax;
	    }

	    //  Zero or smaller than tile sizes?
	    if (width == 0 || height == 0 || width < tileWidth || height < tileHeight || total === 0)
	    {
	        console.warn("Phaser.TilemapParser.tileSet: width/height zero or width/height < given tileWidth/tileHeight");
	        return null;
	    }

	    //  Let's create some tiles
	    var x = 0;
	    var y = 0;

	    var tileset = new Phaser.Tileset(img, key, tileWidth, tileHeight);

	    for (var i = 0; i < total; i++)
	    {
	        tileset.addTile(new Phaser.Tile(tileset, i, x, y, tileWidth, tileHeight));

	        x += tileWidth;

	        if (x === width)
	        {
	            x = 0;
	            y += tileHeight;
	        }
	    }

	    return tileset;

	},

	parse: function (game, data, format) {

		if (format == Phaser.Tilemap.CSV)
		{
			return this.parseCSV(data);
		}
		else if (format == Phaser.Tilemap.TILED_JSON)
		{
			return this.parseTiledJSON(data);
		}

	},

	/**
	* Parse csv map data and generate tiles.
	* 
	* @method Phaser.Tilemap.prototype.parseCSV
	* @param {string} data - CSV map data.
	*/
	parseCSV: function (data) {

	    //  Trim any rogue whitespace from the data
	    data = data.trim();

	    var output = [];

	    var rows = data.split("\n");

	    for (var i = 0; i < rows.length; i++)
	    {
	    	output[i] = [];

	        var column = rows[i].split(",");

	        for (var c = 0; c < column.length; c++)
	        {
	            output[i][c] = parseInt(column[c]);
	        }
	    }

	    return [{ name: 'csv', alpha: 1, visible: true, tileMargin: 0, tileSpacing: 0, data: output }];

	},

	/**
	* Parse JSON map data and generate tiles.
	* 
	* @method Phaser.Tilemap.prototype.parseTiledJSON
	* @param {string} data - JSON map data.
	* @param {string} key - Asset key for tileset image.
	*/
	parseTiledJSON: function (json) {

		var layers = [];

	    for (var i = 0; i < json.layers.length; i++)
	    {
	        //  Check it's a data layer
	        if (!json.layers[i].data)
	        {
	            continue;
	        }

			//	json.tilewidth
			//	json.tileheight

	        var layer = {

		        name: json.layers[i].name,
		        alpha: json.layers[i].opacity,
		        visible: json.layers[i].visible,
		        tileMargin: json.tilesets[0].margin,
		        tileSpacing: json.tilesets[0].spacing

	        };

	        var output = [];
	        var c = 0;
	        var row;

	        for (var t = 0; t < json.layers[i].data.length; t++)
	        {
	            if (c == 0)
	            {
	                row = [];
	            }

	            row.push(json.layers[i].data[t]);
	            c++;

	            if (c == json.layers[i].width)
	            {
	            	output.push(row);
	                // layer.addColumn(row);
	                c = 0;
	            }
	        }

	        layers.data = output;
	        this.layers.push(layer);

	    }

	    return layers;

	}

}