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phaser/docs/TilemapParser.js.html
photonstorm f22159e257 Updated documentation.
2013-11-28 15:57:09 +00:00

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<h1 class="page-title">Source: tilemap/TilemapParser.js</h1>
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<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey &lt;rich@photonstorm.com>
* @copyright 2013 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Phaser.TilemapParser parses data objects from Phaser.Loader that need more preparation before they can be inserted into a Tilemap.
*
* @class Phaser.TilemapParser
*/
Phaser.TilemapParser = {
/**
* Creates a Tileset object.
* @method Phaser.TilemapParser.tileset
* @param {Phaser.Game} game - Game reference to the currently running game.
* @param {string} key
* @param {number} tileWidth
* @param {number} tileHeight
* @param {number} tileMax
* @param {number} tileMargin
* @param {number} tileSpacing
* @return {Phaser.Tileset} Generated Tileset object.
*/
tileset: function (game, key, tileWidth, tileHeight, tileMax, tileMargin, tileSpacing) {
// 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 no tile width/height is given, try and figure it out (won't work if the tileset has margin/spacing)
if (tileWidth &lt;= 0)
{
tileWidth = Math.floor(-width / Math.min(-1, tileWidth));
}
if (tileHeight &lt;= 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 &lt; tileWidth || height &lt; tileHeight || total === 0)
{
console.warn("Phaser.TilemapParser.tileSet: width/height zero or width/height &lt; given tileWidth/tileHeight");
return null;
}
// Let's create some tiles
var x = tileMargin;
var y = tileMargin;
var tileset = new Phaser.Tileset(img, key, tileWidth, tileHeight, tileMargin, tileSpacing);
for (var i = 0; i &lt; total; i++)
{
tileset.addTile(new Phaser.Tile(tileset, i, x, y, tileWidth, tileHeight));
x += tileWidth + tileSpacing;
if (x === width)
{
x = tileMargin;
y += tileHeight + tileSpacing;
}
}
return tileset;
},
/**
* Parse tileset data from the cache and creates a Tileset object.
* @method Phaser.TilemapParser.parse
* @param {Phaser.Game} game - Game reference to the currently running game.
* @param {object} data
* @param {string} format
* @return {Phaser.Tileset} Generated Tileset object.
*/
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);
}
},
/**
* Parses a CSV file into valid map data.
* @method Phaser.TilemapParser.parseCSV
* @param {string} data - The CSV file data.
* @return {object} Generated map data.
*/
parseCSV: function (data) {
// Trim any rogue whitespace from the data
data = data.trim();
var output = [];
var rows = data.split("\n");
var height = rows.length;
var width = 0;
for (var i = 0; i &lt; rows.length; i++)
{
output[i] = [];
var column = rows[i].split(",");
for (var c = 0; c &lt; column.length; c++)
{
output[i][c] = parseInt(column[c], 10);
}
if (width === 0)
{
width = column.length;
}
}
return [{ name: 'csv', width: width, height: height, alpha: 1, visible: true, indexes: [], tileMargin: 0, tileSpacing: 0, data: output }];
},
/**
* Parses a Tiled JSON file into valid map data.
* @method Phaser.TilemapParser.parseJSON
* @param {object} json- The Tiled JSON data.
* @return {object} Generated map data.
*/
parseTiledJSON: function (json) {
var layers = [];
for (var i = 0; i &lt; 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,
width: json.layers[i].width,
height: json.layers[i].height,
alpha: json.layers[i].opacity,
visible: json.layers[i].visible,
indexes: [],
tileMargin: json.tilesets[0].margin,
tileSpacing: json.tilesets[0].spacing
};
var output = [];
var c = 0;
var row;
for (var t = 0; t &lt; 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);
c = 0;
}
}
layer.data = output;
layers.push(layer);
}
return layers;
}
}
</pre>
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