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A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers.
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<h1 class="page-title">Source: tilemap/TilemapParser.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 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 = {
/**
* Parse tilemap data from the cache and creates a Tilemap object.
*
* @method Phaser.TilemapParser.parse
* @param {Phaser.Game} game - Game reference to the currently running game.
* @param {string} key - The key of the tilemap in the Cache.
* @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.
* @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.
* @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.
* @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.
* @return {object} The parsed map object.
*/
parse: function (game, key, tileWidth, tileHeight, width, height) {
if (typeof tileWidth === 'undefined') { tileWidth = 32; }
if (typeof tileHeight === 'undefined') { tileHeight = 32; }
if (typeof width === 'undefined') { width = 10; }
if (typeof height === 'undefined') { height = 10; }
if (typeof key === 'undefined')
{
return this.getEmptyData();
}
if (key === null)
{
return this.getEmptyData(tileWidth, tileHeight, width, height);
}
var map = game.cache.getTilemapData(key);
if (map)
{
if (map.format === Phaser.Tilemap.CSV)
{
return this.parseCSV(key, map.data, tileWidth, tileHeight);
}
else if (!map.format || map.format === Phaser.Tilemap.TILED_JSON)
{
return this.parseTiledJSON(map.data);
}
}
else
{
console.warn('Phaser.TilemapParser.parse - No map data found for key ' + key);
}
},
/**
* Parses a CSV file into valid map data.
*
* @method Phaser.TilemapParser.parseCSV
* @param {string} data - The CSV file data.
* @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.
* @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.
* @return {object} Generated map data.
*/
parseCSV: function (key, data, tileWidth, tileHeight) {
var map = this.getEmptyData();
// 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 y = 0; y < rows.length; y++)
{
output[y] = [];
var column = rows[y].split(",");
for (var x = 0; x < column.length; x++)
{
output[y][x] = new Phaser.Tile(map.layers[0], parseInt(column[x], 10), x, y, tileWidth, tileHeight);
}
if (width === 0)
{
width = column.length;
}
}
map.format = Phaser.Tilemap.CSV;
map.name = key;
map.width = width;
map.height = height;
map.tileWidth = tileWidth;
map.tileHeight = tileHeight;
map.widthInPixels = width * tileWidth;
map.heightInPixels = height * tileHeight;
map.layers[0].width = width;
map.layers[0].height = height;
map.layers[0].widthInPixels = map.widthInPixels;
map.layers[0].heightInPixels = map.heightInPixels;
map.layers[0].data = output;
return map;
},
/**
* Returns an empty map data object.
*
* @method Phaser.TilemapParser.getEmptyData
* @return {object} Generated map data.
*/
getEmptyData: function (tileWidth, tileHeight, width, height) {
var map = {};
map.width = 0;
map.height = 0;
map.tileWidth = 0;
map.tileHeight = 0;
if (typeof tileWidth !== 'undefined' && tileWidth !== null) { map.tileWidth = tileWidth; }
if (typeof tileHeight !== 'undefined' && tileHeight !== null) { map.tileHeight = tileHeight; }
if (typeof width !== 'undefined' && width !== null) { map.width = width; }
if (typeof height !== 'undefined' && height !== null) { map.height = height; }
map.orientation = 'orthogonal';
map.version = '1';
map.properties = {};
map.widthInPixels = 0;
map.heightInPixels = 0;
var layers = [];
var layer = {
name: 'layer',
x: 0,
y: 0,
width: 0,
height: 0,
widthInPixels: 0,
heightInPixels: 0,
alpha: 1,
visible: true,
properties: {},
indexes: [],
callbacks: [],
bodies: [],
data: []
};
// fill with nulls?
layers.push(layer);
map.layers = layers;
map.images = [];
map.objects = {};
map.collision = {};
map.tilesets = [];
map.tiles = [];
return map;
},
/**
* Parses a Tiled JSON file into valid map data.
* @method Phaser.TilemapParser.parseJSON
* @param {object} json - The JSON map data.
* @return {object} Generated and parsed map data.
*/
parseTiledJSON: function (json) {
if (json.orientation !== 'orthogonal')
{
console.warn('TilemapParser.parseTiledJSON: Only orthogonal map types are supported in this version of Phaser');
return null;
}
// Map data will consist of: layers, objects, images, tilesets, sizes
var map = {};
map.width = json.width;
map.height = json.height;
map.tileWidth = json.tilewidth;
map.tileHeight = json.tileheight;
map.orientation = json.orientation;
map.format = Phaser.Tilemap.TILED_JSON;
map.version = json.version;
map.properties = json.properties;
map.widthInPixels = map.width * map.tileWidth;
map.heightInPixels = map.height * map.tileHeight;
// Tile Layers
var layers = [];
for (var i = 0; i < json.layers.length; i++)
{
if (json.layers[i].type !== 'tilelayer')
{
continue;
}
var layer = {
name: json.layers[i].name,
x: json.layers[i].x,
y: json.layers[i].y,
width: json.layers[i].width,
height: json.layers[i].height,
widthInPixels: json.layers[i].width * json.tilewidth,
heightInPixels: json.layers[i].height * json.tileheight,
alpha: json.layers[i].opacity,
visible: json.layers[i].visible,
properties: {},
indexes: [],
callbacks: [],
bodies: []
};
if (json.layers[i].properties)
{
layer.properties = json.layers[i].properties;
}
var x = 0;
var row = [];
var output = [];
// Loop through the data field in the JSON.
// 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)
// If the map contains multiple tilesets then the indexes are relative to that which the set starts from.
// 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.
for (var t = 0, len = json.layers[i].data.length; t < len; t++)
{
// index, x, y, width, height
if (json.layers[i].data[t] > 0)
{
row.push(new Phaser.Tile(layer, json.layers[i].data[t], x, output.length, json.tilewidth, json.tileheight));
}
else
{
row.push(new Phaser.Tile(layer, -1, x, output.length, json.tilewidth, json.tileheight));
}
x++;
if (x === json.layers[i].width)
{
output.push(row);
x = 0;
row = [];
}
}
layer.data = output;
layers.push(layer);
}
map.layers = layers;
// Images
var images = [];
for (var i = 0; i < json.layers.length; i++)
{
if (json.layers[i].type !== 'imagelayer')
{
continue;
}
var image = {
name: json.layers[i].name,
image: json.layers[i].image,
x: json.layers[i].x,
y: json.layers[i].y,
alpha: json.layers[i].opacity,
visible: json.layers[i].visible,
properties: {}
};
if (json.layers[i].properties)
{
image.properties = json.layers[i].properties;
}
images.push(image);
}
map.images = images;
// Tilesets
var tilesets = [];
for (var i = 0; i < json.tilesets.length; i++)
{
// name, firstgid, width, height, margin, spacing, properties
var set = json.tilesets[i];
var newSet = new Phaser.Tileset(set.name, set.firstgid, set.tilewidth, set.tileheight, set.margin, set.spacing, set.properties);
if (set.tileproperties)
{
newSet.tileProperties = set.tileproperties;
}
newSet.rows = Math.round((set.imageheight - set.margin) / (set.tileheight + set.spacing));
newSet.columns = Math.round((set.imagewidth - set.margin) / (set.tilewidth + set.spacing));
newSet.total = newSet.rows * newSet.columns;
if (newSet.rows % 1 !== 0 || newSet.columns % 1 !== 0)
{
console.warn('TileSet image dimensions do not match expected dimensions. Tileset width/height must be evenly divisible by Tilemap tile width/height.');
}
else
{
tilesets.push(newSet);
}
}
map.tilesets = tilesets;
// Objects & Collision Data (polylines, etc)
var objects = {};
var collision = {};
function slice (obj, fields) {
var sliced = {};
for (var k in fields) {
var key = fields[k];
sliced[key] = obj[key];
}
return sliced;
}
for (var i = 0; i < json.layers.length; i++)
{
if (json.layers[i].type !== 'objectgroup')
{
continue;
}
objects[json.layers[i].name] = [];
collision[json.layers[i].name] = [];
for (var v = 0, len = json.layers[i].objects.length; v < len; v++)
{
// Object Tiles
if (json.layers[i].objects[v].gid)
{
var object = {
gid: json.layers[i].objects[v].gid,
name: json.layers[i].objects[v].name,
x: json.layers[i].objects[v].x,
y: json.layers[i].objects[v].y,
visible: json.layers[i].objects[v].visible,
properties: json.layers[i].objects[v].properties
};
objects[json.layers[i].name].push(object);
}
else if (json.layers[i].objects[v].polyline)
{
var object = {
name: json.layers[i].objects[v].name,
type: json.layers[i].objects[v].type,
x: json.layers[i].objects[v].x,
y: json.layers[i].objects[v].y,
width: json.layers[i].objects[v].width,
height: json.layers[i].objects[v].height,
visible: json.layers[i].objects[v].visible,
properties: json.layers[i].objects[v].properties
};
object.polyline = [];
// Parse the polyline into an array
for (var p = 0; p < json.layers[i].objects[v].polyline.length; p++)
{
object.polyline.push([ json.layers[i].objects[v].polyline[p].x, json.layers[i].objects[v].polyline[p].y ]);
}
collision[json.layers[i].name].push(object);
objects[json.layers[i].name].push(object);
}
// polygon
else if (json.layers[i].objects[v].polygon)
{
var object = slice(json.layers[i].objects[v],
["name", "type", "x", "y", "visible", "properties" ]);
// Parse the polygon into an array
object.polygon = [];
for (var p = 0; p < json.layers[i].objects[v].polygon.length; p++)
{
object.polygon.push([ json.layers[i].objects[v].polygon[p].x, json.layers[i].objects[v].polygon[p].y ]);
}
objects[json.layers[i].name].push(object);
}
// ellipse
else if (json.layers[i].objects[v].ellipse)
{
var object = slice(json.layers[i].objects[v],
["name", "type", "ellipse", "x", "y", "width", "height", "visible", "properties" ]);
objects[json.layers[i].name].push(object);
}
// otherwise it's a rectangle
else
{
var object = slice(json.layers[i].objects[v],
["name", "type", "x", "y", "width", "height", "visible", "properties" ]);
object.rectangle = true;
objects[json.layers[i].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 i,j,k;
var layer, tile, sid, set;
// go through each of the map layers
for (i = 0; i < map.layers.length; i++)
{
layer = map.layers[i];
// rows of tiles
for (j = 0; j < layer.data.length; j++)
{
row = layer.data[j];
// individual tiles
for (k = 0; k < row.length; k++)
{
tile = row[k];
if(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 = set.tileProperties[tile.index - set.firstgid];
}
}
}
}
return map;
}
};
</pre>
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