/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2016 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
* @static
*/
Phaser.TilemapParser = {
/**
* When scanning the Tiled map data the TilemapParser can either insert a null value (true) or
* a Phaser.Tile instance with an index of -1 (false, the default). Depending on your game type
* depends how this should be configured. If you've a large sparsely populated map and the tile
* data doesn't need to change then setting this value to `true` will help with memory consumption.
* However if your map is small, or you need to update the tiles (perhaps the map dynamically changes
* during the game) then leave the default value set.
*
* @constant
* @type {boolean}
*/
INSERT_NULL: false,
/**
* Parse tilemap data from the cache and creates data for 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 (tileWidth === undefined) { tileWidth = 32; }
if (tileHeight === undefined) { tileHeight = 32; }
if (width === undefined) { width = 10; }
if (height === undefined) { height = 10; }
if (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} key - The name you want to give the map data.
* @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) {
return {
width: (width !== undefined && width !== null) ? width : 0,
height: (height !== undefined && height !== null) ? height : 0,
tileWidth: (tileWidth !== undefined && tileWidth !== null) ? tileWidth : 0,
tileHeight: (tileHeight !== undefined && tileHeight !== null) ? tileHeight : 0,
orientation: 'orthogonal',
version: '1',
properties: {},
widthInPixels: 0,
heightInPixels: 0,
layers: [
{
name: 'layer',
x: 0,
y: 0,
width: 0,
height: 0,
widthInPixels: 0,
heightInPixels: 0,
alpha: 1,
visible: true,
properties: {},
indexes: [],
callbacks: [],
bodies: [],
data: []
}
],
images: [],
objects: {},
collision: {},
tilesets: [],
tiles: []
};
},
/**
* 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 = {
width: json.width,
height: json.height,
tileWidth: json.tilewidth,
tileHeight: json.tileheight,
orientation: json.orientation,
format: Phaser.Tilemap.TILED_JSON,
version: json.version,
properties: json.properties,
widthInPixels: json.width * json.tilewidth,
heightInPixels: json.height * json.tileheight
};
// Tile Layers
var layers = [];
for (var i = 0; i < json.layers.length; i++)
{
if (json.layers[i].type !== 'tilelayer')
{
continue;
}
var curl = json.layers[i];
// Base64 decode data if necessary
// NOTE: uncompressed base64 only.
if (!curl.compression && curl.encoding && curl.encoding === 'base64')
{
var binaryString = window.atob(curl.data);
var len = binaryString.length;
var bytes = new Array(len);
// Interpret binaryString as an array of bytes representing
// little-endian encoded uint32 values.
for (var j = 0; j < len; j+=4)
{
bytes[j / 4] = (
binaryString.charCodeAt(j) |
binaryString.charCodeAt(j + 1) << 8 |
binaryString.charCodeAt(j + 2) << 16 |
binaryString.charCodeAt(j + 3) << 24
) >>> 0;
}
curl.data = bytes;
delete curl.encoding;
}
else if (curl.compression)
{
console.warn('TilemapParser.parseTiledJSON - Layer compression is unsupported, skipping layer \'' + curl.name + '\'');
continue;
}
var layer = {
name: curl.name,
x: curl.x,
y: curl.y,
width: curl.width,
height: curl.height,
widthInPixels: curl.width * json.tilewidth,
heightInPixels: curl.height * json.tileheight,
alpha: curl.opacity,
visible: curl.visible,
properties: {},
indexes: [],
callbacks: [],
bodies: []
};
if (curl.properties)
{
layer.properties = curl.properties;
}
var x = 0;
var row = [];
var output = [];
var rotation, flipped, flippedVal, gid;
// 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 = curl.data.length; t < len; t++)
{
rotation = 0;
flipped = false;
gid = curl.data[t];
flippedVal = 0;
// If true the current tile is flipped or rotated (Tiled TMX format)
if (gid > 0x20000000)
{
// FlippedX
if (gid > 0x80000000)
{
gid -= 0x80000000;
flippedVal += 4;
}
// FlippedY
if (gid > 0x40000000)
{
gid -= 0x40000000;
flippedVal += 2;
}
// FlippedAD (anti-diagonal = top-right is swapped with bottom-left corners)
if (gid > 0x20000000)
{
gid -= 0x20000000;
flippedVal += 1;
}
switch (flippedVal)
{
case 5:
rotation = Math.PI / 2;
break;
case 6:
rotation = Math.PI;
break;
case 3:
rotation = 3 * Math.PI / 2;
break;
case 4:
rotation = 0;
flipped = true;
break;
case 7:
rotation = Math.PI / 2;
flipped = true;
break;
case 2:
rotation = Math.PI;
flipped = true;
break;
case 1:
rotation = 3 * Math.PI / 2;
flipped = true;
break;
}
}
// index, x, y, width, height
if (gid > 0)
{
var tile = new Phaser.Tile(layer, gid, x, output.length, json.tilewidth, json.tileheight);
tile.rotation = rotation;
tile.flipped = flipped;
if (flippedVal !== 0)
{
// The WebGL renderer uses this to flip UV coordinates before drawing
tile.flippedVal = flippedVal;
}
row.push(tile);
}
else
{
if (Phaser.TilemapParser.INSERT_NULL)
{
row.push(null);
}
else
{
row.push(new Phaser.Tile(layer, -1, x, output.length, json.tilewidth, json.tileheight));
}
}
x++;
if (x === curl.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 curi = json.layers[i];
var image = {
name: curi.name,
image: curi.image,
x: curi.x,
y: curi.y,
alpha: curi.opacity,
visible: curi.visible,
properties: {}
};
if (curi.properties)
{
image.properties = curi.properties;
}
images.push(image);
}
map.images = images;
// Tilesets & Image Collections
var tilesets = [];
var imagecollections = [];
var lastSet = null;
for (var i = 0; i < json.tilesets.length; i++)
{
// name, firstgid, width, height, margin, spacing, properties
var set = json.tilesets[i];
if (set.image)
{
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;
}
// For a normal sliced tileset the row/count/size information is computed when updated.
// This is done (again) after the image is set.
newSet.updateTileData(set.imagewidth, set.imageheight);
tilesets.push(newSet);
}
else
{
var newCollection = new Phaser.ImageCollection(set.name, set.firstgid, set.tilewidth, set.tileheight, set.margin, set.spacing, set.properties);
for (var ti in set.tiles)
{
var image = set.tiles[ti].image;
var gid = set.firstgid + parseInt(ti, 10);
newCollection.addImage(gid, image);
}
imagecollections.push(newCollection);
}
// We've got a new Tileset, so set the lastgid into the previous one
if (lastSet)
{
lastSet.lastgid = set.firstgid - 1;
}
lastSet = set;
}
map.tilesets = tilesets;
map.imagecollections = imagecollections;
// Objects & Collision Data (polylines, etc)
var objects = {};
var collision = {};
function slice (obj, fields) {
var sliced = {};
for (var k in fields)
{
var key = fields[k];
if (typeof obj[key] !== 'undefined')
{
sliced[key] = obj[key];
}
}
return sliced;
}
for (var i = 0; i < json.layers.length; i++)
{
if (json.layers[i].type !== 'objectgroup')
{
continue;
}
var curo = json.layers[i];
objects[curo.name] = [];
collision[curo.name] = [];
for (var v = 0, len = curo.objects.length; v < len; v++)
{
// Object Tiles
if (curo.objects[v].gid)
{
var object = {
gid: curo.objects[v].gid,
name: curo.objects[v].name,
type: curo.objects[v].hasOwnProperty("type") ? curo.objects[v].type : "",
x: curo.objects[v].x,
y: curo.objects[v].y,
visible: curo.objects[v].visible,
properties: curo.objects[v].properties
};
if (curo.objects[v].rotation)
{
object.rotation = curo.objects[v].rotation;
}
objects[curo.name].push(object);
}
else if (curo.objects[v].polyline)
{
var object = {
name: curo.objects[v].name,
type: curo.objects[v].type,
x: curo.objects[v].x,
y: curo.objects[v].y,
width: curo.objects[v].width,
height: curo.objects[v].height,
visible: curo.objects[v].visible,
properties: curo.objects[v].properties
};
if (curo.objects[v].rotation)
{
object.rotation = curo.objects[v].rotation;
}
object.polyline = [];
// Parse the polyline into an array
for (var p = 0; p < curo.objects[v].polyline.length; p++)
{
object.polyline.push([ curo.objects[v].polyline[p].x, curo.objects[v].polyline[p].y ]);
}
collision[curo.name].push(object);
objects[curo.name].push(object);
}
// polygon
else if (curo.objects[v].polygon)
{
var object = slice(curo.objects[v], ['name', 'type', 'x', 'y', 'visible', 'rotation', 'properties']);
// 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;
}
};
