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< h1 class = "page-title" > Source: tilemap/Tileset.js< / h1 >
< section >
< article >
< pre class = "sunlight-highlight-javascript linenums" > /**
* @author Richard Davey < rich@photonstorm.com>
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* @copyright 2014 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* A Tile set is a combination of an image containing the tiles and collision data per tile.
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* You should not normally instantiate this class directly.
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*
* @class Phaser.Tileset
* @constructor
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* @param {string} name - The name of the tileset in the map data.
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* @param {number} firstgid - The Tiled firstgid value. In non-Tiled data this should be considered the starting index value of the first tile in this set.
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* @param {number} width - Width of each tile in pixels.
* @param {number} height - Height of each tile in pixels.
* @param {number} margin - The amount of margin around the tilesheet.
* @param {number} spacing - The amount of spacing between each tile in the sheet.
* @param {object} properties - Tileset properties.
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*/
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Phaser.Tileset = function (name, firstgid, width, height, margin, spacing, properties) {
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/**
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* @property {string} name - The name of the Tileset.
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*/
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this.name = name;
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/**
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* @property {number} firstgid - The Tiled firstgid value. In non-Tiled data this should be considered the starting index value of the first tile in this set.
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*/
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this.firstgid = firstgid;
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/**
* @property {number} tileWidth - The width of a tile in pixels.
*/
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this.tileWidth = width;
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/**
* @property {number} tileHeight - The height of a tile in pixels.
*/
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this.tileHeight = height;
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/**
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* @property {number} tileMargin - The margin around the tiles in the tileset.
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*/
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this.tileMargin = margin;
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/**
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* @property {number} tileSpacing - The spacing in pixels between each tile in the tileset.
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*/
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this.tileSpacing = spacing;
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/**
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* @property {object} properties - Tileset specific properties (typically defined in the Tiled editor).
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*/
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this.properties = properties;
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/**
* @property {object} image - The image used for rendering. This is a reference to the image stored in Phaser.Cache.
*/
this.image = null;
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/**
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* @property {number} rows - The number of rows in the tile sheet.
*/
this.rows = 0;
/**
* @property {number} columns - The number of columns in the tile sheet.
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*/
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this.columns = 0;
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/**
* @property {number} total - The total number of tiles in the tilesheet.
*/
this.total = 0;
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/**
* @property {array} draw - The tile drawImage look-up table
* @private
*/
this.drawCoords = [];
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};
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Phaser.Tileset.prototype = {
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/**
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* Draws a tile from this Tileset at the given coordinates on the context.
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*
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* @method Phaser.Tileset#draw
* @param {HTMLCanvasContext} context - The context to draw the tile onto.
* @param {number} x - The x coordinate to draw to.
* @param {number} y - The y coordinate to draw to.
* @param {number} index - The index of the tile within the set to draw.
*/
draw: function (context, x, y, index) {
if (!this.image || !this.drawCoords[index])
{
return;
}
context.drawImage(
this.image,
this.drawCoords[index][0],
this.drawCoords[index][1],
this.tileWidth,
this.tileHeight,
x,
y,
this.tileWidth,
this.tileHeight
);
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},
/**
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* Adds a reference from this Tileset to an Image stored in the Phaser.Cache.
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*
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* @method Phaser.Tileset#setImage
* @param {Image} image - The image this tileset will use to draw with.
*/
setImage: function (image) {
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this.image = image;
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this.rows = Math.round((image.height - this.tileMargin) / (this.tileHeight + this.tileSpacing));
this.columns = Math.round((image.width - this.tileMargin) / (this.tileWidth + this.tileSpacing));
this.total = this.rows * this.columns;
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// Create the index look-up
this.drawCoords.length = 0;
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var tx = this.tileMargin;
var ty = this.tileMargin;
var i = this.firstgid;
for (var y = 0; y < this.rows; y++)
{
for (var x = 0; x < this.columns; x++)
{
this.drawCoords[i] = [ tx, ty ];
tx += this.tileWidth + this.tileSpacing;
i++;
}
tx = this.tileMargin;
ty += this.tileHeight + this.tileSpacing;
}
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},
/**
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* Sets tile spacing and margins.
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*
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* @method Phaser.Tileset#setSpacing
* @param {number} [tileMargin] - The margin around the tiles in the sheet.
* @param {number} [tileSpacing] - The spacing between the tiles in the sheet.
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*/
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setSpacing: function (margin, spacing) {
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this.tileMargin = margin;
this.tileSpacing = spacing;
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this.setImage(this.image);
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}
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};
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Phaser.Tileset.prototype.constructor = Phaser.Tileset;
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< script src = "scripts/bootstrap-dropdown.js" > < / script >
< script src = "scripts/toc.js" > < / script >
< script > Sunlight . highlightAll ( { lineNumbers : true , showMenu : true , enableDoclinks : true } ) ; < / script >
< script >
$( function () {
$( "#toc" ).toc( {
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anchorName : function(i, heading, prefix) {
return $(heading).attr("id") || ( prefix + i );
},
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selectors : "h1,h2,h3,h4",
showAndHide : false,
scrollTo : 60
} );
$( "#toc>ul" ).addClass( "nav nav-pills nav-stacked" );
$( "#main span[id^='toc']" ).addClass( "toc-shim" );
} );
< / script >
< / body >
< / html >
