/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2015 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* A BitmapData object contains a Canvas element to which you can draw anything you like via normal Canvas context operations.
* A single BitmapData can be used as the texture for one or many Images/Sprites.
* So if you need to dynamically create a Sprite texture then they are a good choice.
*
* @class Phaser.BitmapData
* @constructor
* @param {Phaser.Game} game - A reference to the currently running game.
* @param {string} key - Internal Phaser reference key for the BitmapData.
* @param {number} [width=256] - The width of the BitmapData in pixels. If undefined or zero it's set to a default value.
* @param {number} [height=256] - The height of the BitmapData in pixels. If undefined or zero it's set to a default value.
*/
Phaser.BitmapData = function (game, key, width, height) {
if (width === undefined || width === 0) { width = 256; }
if (height === undefined || height === 0) { height = 256; }
/**
* @property {Phaser.Game} game - A reference to the currently running game.
*/
this.game = game;
/**
* @property {string} key - The key of the BitmapData in the Cache, if stored there.
*/
this.key = key;
/**
* @property {number} width - The width of the BitmapData in pixels.
*/
this.width = width;
/**
* @property {number} height - The height of the BitmapData in pixels.
*/
this.height = height;
/**
* @property {HTMLCanvasElement} canvas - The canvas to which this BitmapData draws.
* @default
*/
this.canvas = Phaser.Canvas.create(width, height, '', true);
/**
* @property {CanvasRenderingContext2D} context - The 2d context of the canvas.
* @default
*/
this.context = this.canvas.getContext('2d', { alpha: true });
/**
* @property {CanvasRenderingContext2D} ctx - A reference to BitmapData.context.
*/
this.ctx = this.context;
/**
* @property {ImageData} imageData - The context image data.
*/
this.imageData = this.context.getImageData(0, 0, width, height);
/**
* A Uint8ClampedArray view into BitmapData.buffer.
* Note that this is unavailable in some browsers (such as Epic Browser due to its security restrictions)
* @property {Uint8ClampedArray} data
*/
this.data = null;
if (this.imageData)
{
this.data = this.imageData.data;
}
/**
* @property {Uint32Array} pixels - An Uint32Array view into BitmapData.buffer.
*/
this.pixels = null;
/**
* @property {ArrayBuffer} buffer - An ArrayBuffer the same size as the context ImageData.
*/
if (this.data)
{
if (this.imageData.data.buffer)
{
this.buffer = this.imageData.data.buffer;
this.pixels = new Uint32Array(this.buffer);
}
else
{
if (window['ArrayBuffer'])
{
this.buffer = new ArrayBuffer(this.imageData.data.length);
this.pixels = new Uint32Array(this.buffer);
}
else
{
this.pixels = this.imageData.data;
}
}
}
/**
* @property {PIXI.BaseTexture} baseTexture - The PIXI.BaseTexture.
* @default
*/
this.baseTexture = new PIXI.BaseTexture(this.canvas);
/**
* @property {PIXI.Texture} texture - The PIXI.Texture.
* @default
*/
this.texture = new PIXI.Texture(this.baseTexture);
/**
* @property {Phaser.Frame} textureFrame - The Frame this BitmapData uses for rendering.
* @default
*/
this.textureFrame = new Phaser.Frame(0, 0, 0, width, height, 'bitmapData');
this.texture.frame = this.textureFrame;
/**
* @property {number} type - The const type of this object.
* @default
*/
this.type = Phaser.BITMAPDATA;
/**
* @property {boolean} disableTextureUpload - If disableTextureUpload is true this BitmapData will never send its image data to the GPU when its dirty flag is true.
*/
this.disableTextureUpload = false;
/**
* @property {boolean} dirty - If dirty this BitmapData will be re-rendered.
*/
this.dirty = false;
// Aliases
this.cls = this.clear;
/**
* @property {number} _image - Internal cache var.
* @private
*/
this._image = null;
/**
* @property {Phaser.Point} _pos - Internal cache var.
* @private
*/
this._pos = new Phaser.Point();
/**
* @property {Phaser.Point} _size - Internal cache var.
* @private
*/
this._size = new Phaser.Point();
/**
* @property {Phaser.Point} _scale - Internal cache var.
* @private
*/
this._scale = new Phaser.Point();
/**
* @property {number} _rotate - Internal cache var.
* @private
*/
this._rotate = 0;
/**
* @property {object} _alpha - Internal cache var.
* @private
*/
this._alpha = { prev: 1, current: 1 };
/**
* @property {Phaser.Point} _anchor - Internal cache var.
* @private
*/
this._anchor = new Phaser.Point();
/**
* @property {number} _tempR - Internal cache var.
* @private
*/
this._tempR = 0;
/**
* @property {number} _tempG - Internal cache var.
* @private
*/
this._tempG = 0;
/**
* @property {number} _tempB - Internal cache var.
* @private
*/
this._tempB = 0;
/**
* @property {Phaser.Circle} _circle - Internal cache var.
* @private
*/
this._circle = new Phaser.Circle();
/**
* @property {HTMLCanvasElement} _swapCanvas - A swap canvas.
* @private
*/
this._swapCanvas = Phaser.Canvas.create(width, height, '', true);
};
Phaser.BitmapData.prototype = {
/**
* Shifts the contents of this BitmapData by the distances given.
*
* The image will wrap-around the edges on all sides.
*
* @method Phaser.BitmapData#move
* @param {integer} x - The amount of pixels to horizontally shift the canvas by. Use a negative value to shift to the left, positive to the right.
* @param {integer} y - The amount of pixels to vertically shift the canvas by. Use a negative value to shift up, positive to shift down.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
move: function (x, y) {
if (x !== 0)
{
this.moveH(x);
}
if (y !== 0)
{
this.moveV(y);
}
return this;
},
/**
* Shifts the contents of this BitmapData horizontally.
*
* The image will wrap-around the sides.
*
* @method Phaser.BitmapData#moveH
* @param {integer} distance - The amount of pixels to horizontally shift the canvas by. Use a negative value to shift to the left, positive to the right.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
moveH: function (distance) {
var c = this._swapCanvas;
var ctx = c.getContext('2d');
var h = this.height;
var src = this.canvas;
ctx.clearRect(0, 0, this.width, this.height);
if (distance < 0)
{
distance = Math.abs(distance);
// Moving to the left
var w = this.width - distance;
// Left-hand chunk
ctx.drawImage(src, 0, 0, distance, h, w, 0, distance, h);
// Rest of the image
ctx.drawImage(src, distance, 0, w, h, 0, 0, w, h);
}
else
{
// Moving to the right
var w = this.width - distance;
// Right-hand chunk
ctx.drawImage(src, w, 0, distance, h, 0, 0, distance, h);
// Rest of the image
ctx.drawImage(src, 0, 0, w, h, distance, 0, w, h);
}
this.clear();
return this.copy(this._swapCanvas);
},
/**
* Shifts the contents of this BitmapData vertically.
*
* The image will wrap-around the sides.
*
* @method Phaser.BitmapData#moveV
* @param {integer} distance - The amount of pixels to vertically shift the canvas by. Use a negative value to shift up, positive to shift down.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
moveV: function (distance) {
var c = this._swapCanvas;
var ctx = c.getContext('2d');
var w = this.width;
var src = this.canvas;
ctx.clearRect(0, 0, this.width, this.height);
if (distance < 0)
{
distance = Math.abs(distance);
// Moving up
var h = this.height - distance;
// Top chunk
ctx.drawImage(src, 0, 0, w, distance, 0, h, w, distance);
// Rest of the image
ctx.drawImage(src, 0, distance, w, h, 0, 0, w, h);
}
else
{
// Moving down
var h = this.height - distance;
// Bottom chunk
ctx.drawImage(src, 0, h, w, distance, 0, 0, w, distance);
// Rest of the image
ctx.drawImage(src, 0, 0, w, h, 0, distance, w, h);
}
this.clear();
return this.copy(this._swapCanvas);
},
/**
* Updates the given objects so that they use this BitmapData as their texture.
* This will replace any texture they will currently have set.
*
* @method Phaser.BitmapData#add
* @param {Phaser.Sprite|Phaser.Sprite[]|Phaser.Image|Phaser.Image[]} object - Either a single Sprite/Image or an Array of Sprites/Images.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
add: function (object) {
if (Array.isArray(object))
{
for (var i = 0; i < object.length; i++)
{
if (object[i]['loadTexture'])
{
object[i].loadTexture(this);
}
}
}
else
{
object.loadTexture(this);
}
return this;
},
/**
* Takes the given Game Object, resizes this BitmapData to match it and then draws it into this BitmapDatas canvas, ready for further processing.
* The source game object is not modified by this operation.
* If the source object uses a texture as part of a Texture Atlas or Sprite Sheet, only the current frame will be used for sizing.
* If a string is given it will assume it's a cache key and look in Phaser.Cache for an image key matching the string.
*
* @method Phaser.BitmapData#load
* @param {Phaser.Sprite|Phaser.Image|Phaser.Text|Phaser.BitmapData|Image|HTMLCanvasElement|string} source - The object that will be used to populate this BitmapData. If you give a string it will try and find the Image in the Game.Cache first.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
load: function (source) {
if (typeof source === 'string')
{
source = this.game.cache.getImage(source);
}
if (source)
{
this.resize(source.width, source.height);
this.cls();
}
else
{
return;
}
this.draw(source);
this.update();
return this;
},
/**
* Clears the BitmapData context using a clearRect.
*
* @method Phaser.BitmapData#cls
*/
/**
* Clears the BitmapData context using a clearRect.
*
* You can optionally define the area to clear.
* If the arguments are left empty it will clear the entire canvas.
*
* @method Phaser.BitmapData#clear
* @param {number} [x=0] - The x coordinate of the top-left of the area to clear.
* @param {number} [y=0] - The y coordinate of the top-left of the area to clear.
* @param {number} [width] - The width of the area to clear. If undefined it will use BitmapData.width.
* @param {number} [height] - The height of the area to clear. If undefined it will use BitmapData.height.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
clear: function (x, y, width, height) {
if (x === undefined) { x = 0; }
if (y === undefined) { y = 0; }
if (width === undefined) { width = this.width; }
if (height === undefined) { height = this.height; }
this.context.clearRect(x, y, width, height);
this.dirty = true;
return this;
},
/**
* Fills the BitmapData with the given color.
*
* @method Phaser.BitmapData#fill
* @param {number} r - The red color value, between 0 and 0xFF (255).
* @param {number} g - The green color value, between 0 and 0xFF (255).
* @param {number} b - The blue color value, between 0 and 0xFF (255).
* @param {number} [a=1] - The alpha color value, between 0 and 1.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
fill: function (r, g, b, a) {
if (a === undefined) { a = 1; }
this.context.fillStyle = 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
this.context.fillRect(0, 0, this.width, this.height);
this.dirty = true;
return this;
},
/**
* Creates a new Image element by converting this BitmapDatas canvas into a dataURL.
*
* The image is then stored in the image Cache using the key given.
*
* Finally a PIXI.Texture is created based on the image and returned.
*
* You can apply the texture to a sprite or any other supporting object by using either the
* key or the texture. First call generateTexture:
*
* `var texture = bitmapdata.generateTexture('ball');`
*
* Then you can either apply the texture to a sprite:
*
* `game.add.sprite(0, 0, texture);`
*
* or by using the string based key:
*
* `game.add.sprite(0, 0, 'ball');`
*
* @method Phaser.BitmapData#generateTexture
* @param {string} key - The key which will be used to store the image in the Cache.
* @return {PIXI.Texture} The newly generated texture.
*/
generateTexture: function (key) {
var image = new Image();
image.src = this.canvas.toDataURL("image/png");
var obj = this.game.cache.addImage(key, '', image);
return new PIXI.Texture(obj.base);
},
/**
* Resizes the BitmapData. This changes the size of the underlying canvas and refreshes the buffer.
*
* @method Phaser.BitmapData#resize
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
resize: function (width, height) {
if (width !== this.width || height !== this.height)
{
this.width = width;
this.height = height;
this.canvas.width = width;
this.canvas.height = height;
this._swapCanvas.width = width;
this._swapCanvas.height = height;
this.baseTexture.width = width;
this.baseTexture.height = height;
this.textureFrame.width = width;
this.textureFrame.height = height;
this.texture.width = width;
this.texture.height = height;
this.texture.crop.width = width;
this.texture.crop.height = height;
this.update();
this.dirty = true;
}
return this;
},
/**
* This re-creates the BitmapData.imageData from the current context.
* It then re-builds the ArrayBuffer, the data Uint8ClampedArray reference and the pixels Int32Array.
* If not given the dimensions defaults to the full size of the context.
*
* @method Phaser.BitmapData#update
* @param {number} [x=0] - The x coordinate of the top-left of the image data area to grab from.
* @param {number} [y=0] - The y coordinate of the top-left of the image data area to grab from.
* @param {number} [width=1] - The width of the image data area.
* @param {number} [height=1] - The height of the image data area.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
update: function (x, y, width, height) {
if (x === undefined) { x = 0; }
if (y === undefined) { y = 0; }
if (width === undefined) { width = Math.max(1, this.width); }
if (height === undefined) { height = Math.max(1, this.height); }
this.imageData = this.context.getImageData(x, y, width, height);
this.data = this.imageData.data;
if (this.imageData.data.buffer)
{
this.buffer = this.imageData.data.buffer;
this.pixels = new Uint32Array(this.buffer);
}
else
{
if (window['ArrayBuffer'])
{
this.buffer = new ArrayBuffer(this.imageData.data.length);
this.pixels = new Uint32Array(this.buffer);
}
else
{
this.pixels = this.imageData.data;
}
}
return this;
},
/**
* Scans through the area specified in this BitmapData and sends a color object for every pixel to the given callback.
* The callback will be sent a color object with 6 properties: `{ r: number, g: number, b: number, a: number, color: number, rgba: string }`.
* Where r, g, b and a are integers between 0 and 255 representing the color component values for red, green, blue and alpha.
* The `color` property is an Int32 of the full color. Note the endianess of this will change per system.
* The `rgba` property is a CSS style rgba() string which can be used with context.fillStyle calls, among others.
* The callback will also be sent the pixels x and y coordinates respectively.
* The callback must return either `false`, in which case no change will be made to the pixel, or a new color object.
* If a new color object is returned the pixel will be set to the r, g, b and a color values given within it.
*
* @method Phaser.BitmapData#processPixelRGB
* @param {function} callback - The callback that will be sent each pixel color object to be processed.
* @param {object} callbackContext - The context under which the callback will be called.
* @param {number} [x=0] - The x coordinate of the top-left of the region to process from.
* @param {number} [y=0] - The y coordinate of the top-left of the region to process from.
* @param {number} [width] - The width of the region to process.
* @param {number} [height] - The height of the region to process.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
processPixelRGB: function (callback, callbackContext, x, y, width, height) {
if (x === undefined) { x = 0; }
if (y === undefined) { y = 0; }
if (width === undefined) { width = this.width; }
if (height === undefined) { height = this.height; }
var w = x + width;
var h = y + height;
var pixel = Phaser.Color.createColor();
var result = { r: 0, g: 0, b: 0, a: 0 };
var dirty = false;
for (var ty = y; ty < h; ty++)
{
for (var tx = x; tx < w; tx++)
{
Phaser.Color.unpackPixel(this.getPixel32(tx, ty), pixel);
result = callback.call(callbackContext, pixel, tx, ty);
if (result !== false && result !== null && result !== undefined)
{
this.setPixel32(tx, ty, result.r, result.g, result.b, result.a, false);
dirty = true;
}
}
}
if (dirty)
{
this.context.putImageData(this.imageData, 0, 0);
this.dirty = true;
}
return this;
},
/**
* Scans through the area specified in this BitmapData and sends the color for every pixel to the given callback along with its x and y coordinates.
* Whatever value the callback returns is set as the new color for that pixel, unless it returns the same color, in which case it's skipped.
* Note that the format of the color received will be different depending on if the system is big or little endian.
* It is expected that your callback will deal with endianess. If you'd rather Phaser did it then use processPixelRGB instead.
* The callback will also be sent the pixels x and y coordinates respectively.
*
* @method Phaser.BitmapData#processPixel
* @param {function} callback - The callback that will be sent each pixel color to be processed.
* @param {object} callbackContext - The context under which the callback will be called.
* @param {number} [x=0] - The x coordinate of the top-left of the region to process from.
* @param {number} [y=0] - The y coordinate of the top-left of the region to process from.
* @param {number} [width] - The width of the region to process.
* @param {number} [height] - The height of the region to process.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
processPixel: function (callback, callbackContext, x, y, width, height) {
if (x === undefined) { x = 0; }
if (y === undefined) { y = 0; }
if (width === undefined) { width = this.width; }
if (height === undefined) { height = this.height; }
var w = x + width;
var h = y + height;
var pixel = 0;
var result = 0;
var dirty = false;
for (var ty = y; ty < h; ty++)
{
for (var tx = x; tx < w; tx++)
{
pixel = this.getPixel32(tx, ty);
result = callback.call(callbackContext, pixel, tx, ty);
if (result !== pixel)
{
this.pixels[ty * this.width + tx] = result;
dirty = true;
}
}
}
if (dirty)
{
this.context.putImageData(this.imageData, 0, 0);
this.dirty = true;
}
return this;
},
/**
* Replaces all pixels matching one color with another. The color values are given as two sets of RGBA values.
* An optional region parameter controls if the replacement happens in just a specific area of the BitmapData or the entire thing.
*
* @method Phaser.BitmapData#replaceRGB
* @param {number} r1 - The red color value to be replaced. Between 0 and 255.
* @param {number} g1 - The green color value to be replaced. Between 0 and 255.
* @param {number} b1 - The blue color value to be replaced. Between 0 and 255.
* @param {number} a1 - The alpha color value to be replaced. Between 0 and 255.
* @param {number} r2 - The red color value that is the replacement color. Between 0 and 255.
* @param {number} g2 - The green color value that is the replacement color. Between 0 and 255.
* @param {number} b2 - The blue color value that is the replacement color. Between 0 and 255.
* @param {number} a2 - The alpha color value that is the replacement color. Between 0 and 255.
* @param {Phaser.Rectangle} [region] - The area to perform the search over. If not given it will replace over the whole BitmapData.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
replaceRGB: function (r1, g1, b1, a1, r2, g2, b2, a2, region) {
var sx = 0;
var sy = 0;
var w = this.width;
var h = this.height;
var source = Phaser.Color.packPixel(r1, g1, b1, a1);
if (region !== undefined && region instanceof Phaser.Rectangle)
{
sx = region.x;
sy = region.y;
w = region.width;
h = region.height;
}
for (var y = 0; y < h; y++)
{
for (var x = 0; x < w; x++)
{
if (this.getPixel32(sx + x, sy + y) === source)
{
this.setPixel32(sx + x, sy + y, r2, g2, b2, a2, false);
}
}
}
this.context.putImageData(this.imageData, 0, 0);
this.dirty = true;
return this;
},
/**
* Sets the hue, saturation and lightness values on every pixel in the given region, or the whole BitmapData if no region was specified.
*
* @method Phaser.BitmapData#setHSL
* @param {number} [h=null] - The hue, in the range 0 - 1.
* @param {number} [s=null] - The saturation, in the range 0 - 1.
* @param {number} [l=null] - The lightness, in the range 0 - 1.
* @param {Phaser.Rectangle} [region] - The area to perform the operation on. If not given it will run over the whole BitmapData.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
setHSL: function (h, s, l, region) {
if (h === undefined || h === null) { h = false; }
if (s === undefined || s === null) { s = false; }
if (l === undefined || l === null) { l = false; }
if (!h && !s && !l)
{
return;
}
if (region === undefined)
{
region = new Phaser.Rectangle(0, 0, this.width, this.height);
}
var pixel = Phaser.Color.createColor();
for (var y = region.y; y < region.bottom; y++)
{
for (var x = region.x; x < region.right; x++)
{
Phaser.Color.unpackPixel(this.getPixel32(x, y), pixel, true);
if (h)
{
pixel.h = h;
}
if (s)
{
pixel.s = s;
}
if (l)
{
pixel.l = l;
}
Phaser.Color.HSLtoRGB(pixel.h, pixel.s, pixel.l, pixel);
this.setPixel32(x, y, pixel.r, pixel.g, pixel.b, pixel.a, false);
}
}
this.context.putImageData(this.imageData, 0, 0);
this.dirty = true;
return this;
},
/**
* Shifts any or all of the hue, saturation and lightness values on every pixel in the given region, or the whole BitmapData if no region was specified.
* Shifting will add the given value onto the current h, s and l values, not replace them.
* The hue is wrapped to keep it within the range 0 to 1. Saturation and lightness are clamped to not exceed 1.
*
* @method Phaser.BitmapData#shiftHSL
* @param {number} [h=null] - The amount to shift the hue by.
* @param {number} [s=null] - The amount to shift the saturation by.
* @param {number} [l=null] - The amount to shift the lightness by.
* @param {Phaser.Rectangle} [region] - The area to perform the operation on. If not given it will run over the whole BitmapData.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
shiftHSL: function (h, s, l, region) {
if (h === undefined || h === null) { h = false; }
if (s === undefined || s === null) { s = false; }
if (l === undefined || l === null) { l = false; }
if (!h && !s && !l)
{
return;
}
if (region === undefined)
{
region = new Phaser.Rectangle(0, 0, this.width, this.height);
}
var pixel = Phaser.Color.createColor();
for (var y = region.y; y < region.bottom; y++)
{
for (var x = region.x; x < region.right; x++)
{
Phaser.Color.unpackPixel(this.getPixel32(x, y), pixel, true);
if (h)
{
pixel.h = this.game.math.wrap(pixel.h + h, 0, 1);
}
if (s)
{
pixel.s = this.game.math.limitValue(pixel.s + s, 0, 1);
}
if (l)
{
pixel.l = this.game.math.limitValue(pixel.l + l, 0, 1);
}
Phaser.Color.HSLtoRGB(pixel.h, pixel.s, pixel.l, pixel);
this.setPixel32(x, y, pixel.r, pixel.g, pixel.b, pixel.a, false);
}
}
this.context.putImageData(this.imageData, 0, 0);
this.dirty = true;
return this;
},
/**
* Sets the color of the given pixel to the specified red, green, blue and alpha values.
*
* @method Phaser.BitmapData#setPixel32
* @param {number} x - The x coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {number} y - The y coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {number} red - The red color value, between 0 and 0xFF (255).
* @param {number} green - The green color value, between 0 and 0xFF (255).
* @param {number} blue - The blue color value, between 0 and 0xFF (255).
* @param {number} alpha - The alpha color value, between 0 and 0xFF (255).
* @param {boolean} [immediate=true] - If `true` the context.putImageData will be called and the dirty flag set.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
setPixel32: function (x, y, red, green, blue, alpha, immediate) {
if (immediate === undefined) { immediate = true; }
if (x >= 0 && x <= this.width && y >= 0 && y <= this.height)
{
if (Phaser.Device.LITTLE_ENDIAN)
{
this.pixels[y * this.width + x] = (alpha << 24) | (blue << 16) | (green << 8) | red;
}
else
{
this.pixels[y * this.width + x] = (red << 24) | (green << 16) | (blue << 8) | alpha;
}
if (immediate)
{
this.context.putImageData(this.imageData, 0, 0);
this.dirty = true;
}
}
return this;
},
/**
* Sets the color of the given pixel to the specified red, green and blue values.
*
* @method Phaser.BitmapData#setPixel
* @param {number} x - The x coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {number} y - The y coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {number} red - The red color value, between 0 and 0xFF (255).
* @param {number} green - The green color value, between 0 and 0xFF (255).
* @param {number} blue - The blue color value, between 0 and 0xFF (255).
* @param {number} alpha - The alpha color value, between 0 and 0xFF (255).
* @param {boolean} [immediate=true] - If `true` the context.putImageData will be called and the dirty flag set.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
setPixel: function (x, y, red, green, blue, immediate) {
return this.setPixel32(x, y, red, green, blue, 255, immediate);
},
/**
* Get the color of a specific pixel in the context into a color object.
* If you have drawn anything to the BitmapData since it was created you must call BitmapData.update to refresh the array buffer,
* otherwise this may return out of date color values, or worse - throw a run-time error as it tries to access an array element that doesn't exist.
*
* @method Phaser.BitmapData#getPixel
* @param {number} x - The x coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {number} y - The y coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {object} [out] - An object into which 4 properties will be created: r, g, b and a. If not provided a new object will be created.
* @return {object} An object with the red, green, blue and alpha values set in the r, g, b and a properties.
*/
getPixel: function (x, y, out) {
if (!out)
{
out = Phaser.Color.createColor();
}
var index = ~~(x + (y * this.width));
index *= 4;
out.r = this.data[index];
out.g = this.data[++index];
out.b = this.data[++index];
out.a = this.data[++index];
return out;
},
/**
* Get the color of a specific pixel including its alpha value.
* If you have drawn anything to the BitmapData since it was created you must call BitmapData.update to refresh the array buffer,
* otherwise this may return out of date color values, or worse - throw a run-time error as it tries to access an array element that doesn't exist.
* Note that on little-endian systems the format is 0xAABBGGRR and on big-endian the format is 0xRRGGBBAA.
*
* @method Phaser.BitmapData#getPixel32
* @param {number} x - The x coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {number} y - The y coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @return {number} A native color value integer (format: 0xAARRGGBB)
*/
getPixel32: function (x, y) {
if (x >= 0 && x <= this.width && y >= 0 && y <= this.height)
{
return this.pixels[y * this.width + x];
}
},
/**
* Get the color of a specific pixel including its alpha value as a color object containing r,g,b,a and rgba properties.
* If you have drawn anything to the BitmapData since it was created you must call BitmapData.update to refresh the array buffer,
* otherwise this may return out of date color values, or worse - throw a run-time error as it tries to access an array element that doesn't exist.
*
* @method Phaser.BitmapData#getPixelRGB
* @param {number} x - The x coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {number} y - The y coordinate of the pixel to be set. Must lay within the dimensions of this BitmapData.
* @param {object} [out] - An object into which 3 properties will be created: r, g and b. If not provided a new object will be created.
* @param {boolean} [hsl=false] - Also convert the rgb values into hsl?
* @param {boolean} [hsv=false] - Also convert the rgb values into hsv?
* @return {object} An object with the red, green and blue values set in the r, g and b properties.
*/
getPixelRGB: function (x, y, out, hsl, hsv) {
return Phaser.Color.unpackPixel(this.getPixel32(x, y), out, hsl, hsv);
},
/**
* Gets all the pixels from the region specified by the given Rectangle object.
*
* @method Phaser.BitmapData#getPixels
* @param {Phaser.Rectangle} rect - The Rectangle region to get.
* @return {ImageData} Returns a ImageData object containing a Uint8ClampedArray data property.
*/
getPixels: function (rect) {
return this.context.getImageData(rect.x, rect.y, rect.width, rect.height);
},
/**
* Scans the BitmapData, pixel by pixel, until it encounters a pixel that isn't transparent (i.e. has an alpha value > 0).
* It then stops scanning and returns an object containing the color of the pixel in r, g and b properties and the location in the x and y properties.
*
* The direction parameter controls from which direction it should start the scan:
*
* 0 = top to bottom
* 1 = bottom to top
* 2 = left to right
* 3 = right to left
*
* @method Phaser.BitmapData#getFirstPixel
* @param {number} [direction=0] - The direction in which to scan for the first pixel. 0 = top to bottom, 1 = bottom to top, 2 = left to right and 3 = right to left.
* @return {object} Returns an object containing the color of the pixel in the `r`, `g` and `b` properties and the location in the `x` and `y` properties.
*/
getFirstPixel: function (direction) {
if (direction === undefined) { direction = 0; }
var pixel = Phaser.Color.createColor();
var x = 0;
var y = 0;
var v = 1;
var scan = false;
if (direction === 1)
{
v = -1;
y = this.height;
}
else if (direction === 3)
{
v = -1;
x = this.width;
}
do {
Phaser.Color.unpackPixel(this.getPixel32(x, y), pixel);
if (direction === 0 || direction === 1)
{
// Top to Bottom / Bottom to Top
x++;
if (x === this.width)
{
x = 0;
y += v;
if (y >= this.height || y <= 0)
{
scan = true;
}
}
}
else if (direction === 2 || direction === 3)
{
// Left to Right / Right to Left
y++;
if (y === this.height)
{
y = 0;
x += v;
if (x >= this.width || x <= 0)
{
scan = true;
}
}
}
}
while (pixel.a === 0 && !scan);
pixel.x = x;
pixel.y = y;
return pixel;
},
/**
* Scans the BitmapData and calculates the bounds. This is a rectangle that defines the extent of all non-transparent pixels.
* The rectangle returned will extend from the top-left of the image to the bottom-right, excluding transparent pixels.
*
* @method Phaser.BitmapData#getBounds
* @param {Phaser.Rectangle} [rect] - If provided this Rectangle object will be populated with the bounds, otherwise a new object will be created.
* @return {Phaser.Rectangle} A Rectangle whose dimensions encompass the full extent of non-transparent pixels in this BitmapData.
*/
getBounds: function (rect) {
if (rect === undefined) { rect = new Phaser.Rectangle(); }
rect.x = this.getFirstPixel(2).x;
// If we hit this, there's no point scanning any more, the image is empty
if (rect.x === this.width)
{
return rect.setTo(0, 0, 0, 0);
}
rect.y = this.getFirstPixel(0).y;
rect.width = (this.getFirstPixel(3).x - rect.x) + 1;
rect.height = (this.getFirstPixel(1).y - rect.y) + 1;
return rect;
},
/**
* Creates a new Phaser.Image object, assigns this BitmapData to be its texture, adds it to the world then returns it.
*
* @method Phaser.BitmapData#addToWorld
* @param {number} [x=0] - The x coordinate to place the Image at.
* @param {number} [y=0] - The y coordinate to place the Image at.
* @param {number} [anchorX=0] - Set the x anchor point of the Image. A value between 0 and 1, where 0 is the top-left and 1 is bottom-right.
* @param {number} [anchorY=0] - Set the y anchor point of the Image. A value between 0 and 1, where 0 is the top-left and 1 is bottom-right.
* @param {number} [scaleX=1] - The horizontal scale factor of the Image. A value of 1 means no scaling. 2 would be twice the size, and so on.
* @param {number} [scaleY=1] - The vertical scale factor of the Image. A value of 1 means no scaling. 2 would be twice the size, and so on.
* @return {Phaser.Image} The newly added Image object.
*/
addToWorld: function (x, y, anchorX, anchorY, scaleX, scaleY) {
scaleX = scaleX || 1;
scaleY = scaleY || 1;
var image = this.game.add.image(x, y, this);
image.anchor.set(anchorX, anchorY);
image.scale.set(scaleX, scaleY);
return image;
},
/**
* Copies a rectangular area from the source object to this BitmapData. If you give `null` as the source it will copy from itself.
* You can optionally resize, translate, rotate, scale, alpha or blend as it's drawn.
* All rotation, scaling and drawing takes place around the regions center point by default, but can be changed with the anchor parameters.
* Note that the source image can also be this BitmapData, which can create some interesting effects.
*
* This method has a lot of parameters for maximum control.
* You can use the more friendly methods like `copyRect` and `draw` to avoid having to remember them all.
*
* @method Phaser.BitmapData#copy
* @param {Phaser.Sprite|Phaser.Image|Phaser.Text|Phaser.BitmapData|Image|HTMLCanvasElement|string} [source] - The source to copy from. If you give a string it will try and find the Image in the Game.Cache first. This is quite expensive so try to provide the image itself.
* @param {number} [x=0] - The x coordinate representing the top-left of the region to copy from the source image.
* @param {number} [y=0] - The y coordinate representing the top-left of the region to copy from the source image.
* @param {number} [width] - The width of the region to copy from the source image. If not specified it will use the full source image width.
* @param {number} [height] - The height of the region to copy from the source image. If not specified it will use the full source image height.
* @param {number} [tx] - The x coordinate to translate to before drawing. If not specified it will default to the `x` parameter. If `null` and `source` is a Display Object, it will default to `source.x`.
* @param {number} [ty] - The y coordinate to translate to before drawing. If not specified it will default to the `y` parameter. If `null` and `source` is a Display Object, it will default to `source.y`.
* @param {number} [newWidth] - The new width of the block being copied. If not specified it will default to the `width` parameter.
* @param {number} [newHeight] - The new height of the block being copied. If not specified it will default to the `height` parameter.
* @param {number} [rotate=0] - The angle in radians to rotate the block to before drawing. Rotation takes place around the center by default, but can be changed with the `anchor` parameters.
* @param {number} [anchorX=0] - The anchor point around which the block is rotated and scaled. A value between 0 and 1, where 0 is the top-left and 1 is bottom-right.
* @param {number} [anchorY=0] - The anchor point around which the block is rotated and scaled. A value between 0 and 1, where 0 is the top-left and 1 is bottom-right.
* @param {number} [scaleX=1] - The horizontal scale factor of the block. A value of 1 means no scaling. 2 would be twice the size, and so on.
* @param {number} [scaleY=1] - The vertical scale factor of the block. A value of 1 means no scaling. 2 would be twice the size, and so on.
* @param {number} [alpha=1] - The alpha that will be set on the context before drawing. A value between 0 (fully transparent) and 1, opaque.
* @param {string} [blendMode=null] - The composite blend mode that will be used when drawing. The default is no blend mode at all. This is a Canvas globalCompositeOperation value such as 'lighter' or 'xor'.
* @param {boolean} [roundPx=false] - Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
copy: function (source, x, y, width, height, tx, ty, newWidth, newHeight, rotate, anchorX, anchorY, scaleX, scaleY, alpha, blendMode, roundPx) {
if (source === undefined || source === null) { source = this; }
this._image = source;
if (source instanceof Phaser.Sprite || source instanceof Phaser.Image || source instanceof Phaser.Text)
{
// Copy over sprite values
this._pos.set(source.texture.crop.x, source.texture.crop.y);
this._size.set(source.texture.crop.width, source.texture.crop.height);
this._scale.set(source.scale.x, source.scale.y);
this._anchor.set(source.anchor.x, source.anchor.y);
this._rotate = source.rotation;
this._alpha.current = source.alpha;
this._image = source.texture.baseTexture.source;
if (tx === undefined || tx === null) { tx = source.x; }
if (ty === undefined || ty === null) { ty = source.y; }
if (source.texture.trim)
{
// Offset the translation coordinates by the trim amount
tx += source.texture.trim.x - source.anchor.x * source.texture.trim.width;
ty += source.texture.trim.y - source.anchor.y * source.texture.trim.height;
}
if (source.tint !== 0xFFFFFF)
{
if (source.cachedTint !== source.tint)
{
source.cachedTint = source.tint;
source.tintedTexture = PIXI.CanvasTinter.getTintedTexture(source, source.tint);
}
this._image = source.tintedTexture;
}
}
else
{
// Reset
this._pos.set(0);
this._scale.set(1);
this._anchor.set(0);
this._rotate = 0;
this._alpha.current = 1;
if (source instanceof Phaser.BitmapData)
{
this._image = source.canvas;
}
else if (typeof source === 'string')
{
source = this.game.cache.getImage(source);
if (source === null)
{
return;
}
else
{
this._image = source;
}
}
this._size.set(this._image.width, this._image.height);
}
// The source region to copy from
if (x === undefined || x === null) { x = 0; }
if (y === undefined || y === null) { y = 0; }
// If they set a width/height then we override the frame values with them
if (width)
{
this._size.x = width;
}
if (height)
{
this._size.y = height;
}
// The destination region to copy to
if (tx === undefined || tx === null) { tx = x; }
if (ty === undefined || ty === null) { ty = y; }
if (newWidth === undefined || newWidth === null) { newWidth = this._size.x; }
if (newHeight === undefined || newHeight === null) { newHeight = this._size.y; }
// Rotation - if set this will override any potential Sprite value
if (typeof rotate === 'number')
{
this._rotate = rotate;
}
// Anchor - if set this will override any potential Sprite value
if (typeof anchorX === 'number')
{
this._anchor.x = anchorX;
}
if (typeof anchorY === 'number')
{
this._anchor.y = anchorY;
}
// Scaling - if set this will override any potential Sprite value
if (typeof scaleX === 'number')
{
this._scale.x = scaleX;
}
if (typeof scaleY === 'number')
{
this._scale.y = scaleY;
}
// Effects
if (typeof alpha === 'number')
{
this._alpha.current = alpha;
}
if (blendMode === undefined) { blendMode = null; }
if (roundPx === undefined) { roundPx = false; }
if (this._alpha.current <= 0 || this._scale.x === 0 || this._scale.y === 0 || this._size.x === 0 || this._size.y === 0)
{
// Why bother wasting CPU cycles drawing something you can't see?
return;
}
this._alpha.prev = this.context.globalAlpha;
this.context.save();
this.context.globalAlpha = this._alpha.current;
if (blendMode)
{
this.context.globalCompositeOperation = blendMode;
}
if (roundPx)
{
tx |= 0;
ty |= 0;
}
this.context.translate(tx, ty);
this.context.scale(this._scale.x, this._scale.y);
this.context.rotate(this._rotate);
this.context.drawImage(this._image, this._pos.x + x, this._pos.y + y, this._size.x, this._size.y, -newWidth * this._anchor.x, -newHeight * this._anchor.y, newWidth, newHeight);
this.context.restore();
this.context.globalAlpha = this._alpha.prev;
this.dirty = true;
return this;
},
/**
* Copies the area defined by the Rectangle parameter from the source image to this BitmapData at the given location.
*
* @method Phaser.BitmapData#copyRect
* @param {Phaser.Sprite|Phaser.Image|Phaser.Text|Phaser.BitmapData|Image|string} source - The Image to copy from. If you give a string it will try and find the Image in the Game.Cache.
* @param {Phaser.Rectangle} area - The Rectangle region to copy from the source image.
* @param {number} x - The destination x coordinate to copy the image to.
* @param {number} y - The destination y coordinate to copy the image to.
* @param {number} [alpha=1] - The alpha that will be set on the context before drawing. A value between 0 (fully transparent) and 1, opaque.
* @param {string} [blendMode=null] - The composite blend mode that will be used when drawing. The default is no blend mode at all. This is a Canvas globalCompositeOperation value such as 'lighter' or 'xor'.
* @param {boolean} [roundPx=false] - Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
copyRect: function (source, area, x, y, alpha, blendMode, roundPx) {
return this.copy(source, area.x, area.y, area.width, area.height, x, y, area.width, area.height, 0, 0, 0, 1, 1, alpha, blendMode, roundPx);
},
/**
* Draws the given Phaser.Sprite, Phaser.Image or Phaser.Text to this BitmapData at the coordinates specified.
* You can use the optional width and height values to 'stretch' the sprite as it is drawn. This uses drawImage stretching, not scaling.
* When drawing it will take into account the Sprites rotation, scale and alpha values.
*
* @method Phaser.BitmapData#draw
* @param {Phaser.Sprite|Phaser.Image|Phaser.Text} source - The Sprite, Image or Text object to draw onto this BitmapData.
* @param {number} [x=0] - The x coordinate to translate to before drawing. If not specified it will default to `source.x`.
* @param {number} [y=0] - The y coordinate to translate to before drawing. If not specified it will default to `source.y`.
* @param {number} [width] - The new width of the Sprite being copied. If not specified it will default to `source.width`.
* @param {number} [height] - The new height of the Sprite being copied. If not specified it will default to `source.height`.
* @param {string} [blendMode=null] - The composite blend mode that will be used when drawing. The default is no blend mode at all. This is a Canvas globalCompositeOperation value such as 'lighter' or 'xor'.
* @param {boolean} [roundPx=false] - Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
draw: function (source, x, y, width, height, blendMode, roundPx) {
// By specifying null for most parameters it will tell `copy` to use the Sprite values instead, which is what we want here
return this.copy(source, null, null, null, null, x, y, width, height, null, null, null, null, null, null, blendMode, roundPx);
},
/**
* Draws the immediate children of a Phaser.Group to this BitmapData.
* Children are only drawn if they have their `exists` property set to `true`.
* The children will be drawn at their `x` and `y` world space coordinates. If this is outside the bounds of the BitmapData they won't be drawn.
* When drawing it will take into account the child's rotation, scale and alpha values.
* No iteration takes place. Groups nested inside other Groups will not be iterated through.
*
* @method Phaser.BitmapData#drawGroup
* @param {Phaser.Group} group - The Group to draw onto this BitmapData.
* @param {string} [blendMode=null] - The composite blend mode that will be used when drawing. The default is no blend mode at all. This is a Canvas globalCompositeOperation value such as 'lighter' or 'xor'.
* @param {boolean} [roundPx=false] - Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
drawGroup: function (group, blendMode, roundPx) {
if (group.total > 0)
{
group.forEachExists(this.copy, this, null, null, null, null, null, null, null, null, null, null, null, null, null, null, blendMode, roundPx);
}
return this;
},
/**
* Sets the shadow properties of this BitmapDatas context which will affect all draw operations made to it.
* You can cancel an existing shadow by calling this method and passing no parameters.
* Note: At the time of writing (October 2014) Chrome still doesn't support shadowBlur used with drawImage.
*
* @method Phaser.BitmapData#shadow
* @param {string} color - The color of the shadow, given in a CSS format, i.e. `#000000` or `rgba(0,0,0,1)`. If `null` or `undefined` the shadow will be reset.
* @param {number} [blur=5] - The amount the shadow will be blurred by. Low values = a crisp shadow, high values = a softer shadow.
* @param {number} [x=10] - The horizontal offset of the shadow in pixels.
* @param {number} [y=10] - The vertical offset of the shadow in pixels.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
shadow: function (color, blur, x, y) {
if (color === undefined || color === null)
{
this.context.shadowColor = 'rgba(0,0,0,0)';
}
else
{
this.context.shadowColor = color;
this.context.shadowBlur = blur || 5;
this.context.shadowOffsetX = x || 10;
this.context.shadowOffsetY = y || 10;
}
},
/**
* Draws the image onto this BitmapData using an image as an alpha mask.
*
* @method Phaser.BitmapData#alphaMask
* @param {Phaser.Sprite|Phaser.Image|Phaser.Text|Phaser.BitmapData|Image|HTMLCanvasElement|string} source - The source to copy from. If you give a string it will try and find the Image in the Game.Cache first. This is quite expensive so try to provide the image itself.
* @param {Phaser.Sprite|Phaser.Image|Phaser.Text|Phaser.BitmapData|Image|HTMLCanvasElement|string} [mask] - The object to be used as the mask. If you give a string it will try and find the Image in the Game.Cache first. This is quite expensive so try to provide the image itself. If you don't provide a mask it will use this BitmapData as the mask.
* @param {Phaser.Rectangle} [sourceRect] - A Rectangle where x/y define the coordinates to draw the Source image to and width/height define the size.
* @param {Phaser.Rectangle} [maskRect] - A Rectangle where x/y define the coordinates to draw the Mask image to and width/height define the size.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
alphaMask: function (source, mask, sourceRect, maskRect) {
if (maskRect === undefined || maskRect === null)
{
this.draw(mask).blendSourceAtop();
}
else
{
this.draw(mask, maskRect.x, maskRect.y, maskRect.width, maskRect.height).blendSourceAtop();
}
if (sourceRect === undefined || sourceRect === null)
{
this.draw(source).blendReset();
}
else
{
this.draw(source, sourceRect.x, sourceRect.y, sourceRect.width, sourceRect.height).blendReset();
}
return this;
},
/**
* Scans this BitmapData for all pixels matching the given r,g,b values and then draws them into the given destination BitmapData.
* The original BitmapData remains unchanged.
* The destination BitmapData must be large enough to receive all of the pixels that are scanned unless the 'resize' parameter is true.
* Although the destination BitmapData is returned from this method, it's actually modified directly in place, meaning this call is perfectly valid:
* `picture.extract(mask, r, g, b)`
* You can specify optional r2, g2, b2 color values. If given the pixel written to the destination bitmap will be of the r2, g2, b2 color.
* If not given it will be written as the same color it was extracted. You can provide one or more alternative colors, allowing you to tint
* the color during extraction.
*
* @method Phaser.BitmapData#extract
* @param {Phaser.BitmapData} destination - The BitmapData that the extracted pixels will be drawn to.
* @param {number} r - The red color component, in the range 0 - 255.
* @param {number} g - The green color component, in the range 0 - 255.
* @param {number} b - The blue color component, in the range 0 - 255.
* @param {number} [a=255] - The alpha color component, in the range 0 - 255 that the new pixel will be drawn at.
* @param {boolean} [resize=false] - Should the destination BitmapData be resized to match this one before the pixels are copied?
* @param {number} [r2] - An alternative red color component to be written to the destination, in the range 0 - 255.
* @param {number} [g2] - An alternative green color component to be written to the destination, in the range 0 - 255.
* @param {number} [b2] - An alternative blue color component to be written to the destination, in the range 0 - 255.
* @returns {Phaser.BitmapData} The BitmapData that the extract pixels were drawn on.
*/
extract: function (destination, r, g, b, a, resize, r2, g2, b2) {
if (a === undefined) { a = 255; }
if (resize === undefined) { resize = false; }
if (r2 === undefined) { r2 = r; }
if (g2 === undefined) { g2 = g; }
if (b2 === undefined) { b2 = b; }
if (resize)
{
destination.resize(this.width, this.height);
}
this.processPixelRGB(
function (pixel, x, y)
{
if (pixel.r === r && pixel.g === g && pixel.b === b)
{
destination.setPixel32(x, y, r2, g2, b2, a, false);
}
return false;
},
this);
destination.context.putImageData(destination.imageData, 0, 0);
destination.dirty = true;
return destination;
},
/**
* Draws a filled Rectangle to the BitmapData at the given x, y coordinates and width / height in size.
*
* @method Phaser.BitmapData#rect
* @param {number} x - The x coordinate of the top-left of the Rectangle.
* @param {number} y - The y coordinate of the top-left of the Rectangle.
* @param {number} width - The width of the Rectangle.
* @param {number} height - The height of the Rectangle.
* @param {string} [fillStyle] - If set the context fillStyle will be set to this value before the rect is drawn.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
rect: function (x, y, width, height, fillStyle) {
if (typeof fillStyle !== 'undefined')
{
this.context.fillStyle = fillStyle;
}
this.context.fillRect(x, y, width, height);
return this;
},
/**
* Draws text to the BitmapData in the given font and color.
* The default font is 14px Courier, so useful for quickly drawing debug text.
* If you need to do a lot of font work to this BitmapData we'd recommend implementing your own text draw method.
*
* @method Phaser.BitmapData#text
* @param {string} text - The text to write to the BitmapData.
* @param {number} x - The x coordinate of the top-left of the text string.
* @param {number} y - The y coordinate of the top-left of the text string.
* @param {string} [font='14px Courier'] - The font. This is passed directly to Context.font, so anything that can support, this can.
* @param {string} [color='rgb(255,255,255)'] - The color the text will be drawn in.
* @param {boolean} [shadow=true] - Draw a single pixel black shadow below the text (offset by text.x/y + 1)
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
text: function (text, x, y, font, color, shadow) {
if (x === undefined) { x = 0; }
if (y === undefined) { y = 0; }
if (font === undefined) { font = '14px Courier'; }
if (color === undefined) { color = 'rgb(255,255,255)'; }
if (shadow === undefined) { shadow = true; }
var prevFont = this.context.font;
this.context.font = font;
if (shadow)
{
this.context.fillStyle = 'rgb(0,0,0)';
this.context.fillText(text, x + 1, y + 1);
}
this.context.fillStyle = color;
this.context.fillText(text, x, y);
this.context.font = prevFont;
},
/**
* Draws a filled Circle to the BitmapData at the given x, y coordinates and radius in size.
*
* @method Phaser.BitmapData#circle
* @param {number} x - The x coordinate to draw the Circle at. This is the center of the circle.
* @param {number} y - The y coordinate to draw the Circle at. This is the center of the circle.
* @param {number} radius - The radius of the Circle in pixels. The radius is half the diameter.
* @param {string} [fillStyle] - If set the context fillStyle will be set to this value before the circle is drawn.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
circle: function (x, y, radius, fillStyle) {
if (typeof fillStyle !== 'undefined')
{
this.context.fillStyle = fillStyle;
}
this.context.beginPath();
this.context.arc(x, y, radius, 0, Math.PI * 2, false);
this.context.closePath();
this.context.fill();
return this;
},
/**
* Takes the given Line object and image and renders it to this BitmapData as a repeating texture line.
*
* @method Phaser.BitmapData#textureLine
* @param {Phaser.Line} line - A Phaser.Line object that will be used to plot the start and end of the line.
* @param {string|Image} image - The key of an image in the Phaser.Cache to use as the texture for this line, or an actual Image.
* @param {string} [repeat='repeat-x'] - The pattern repeat mode to use when drawing the line. Either `repeat`, `repeat-x` or `no-repeat`.
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
textureLine: function (line, image, repeat) {
if (repeat === undefined) { repeat = 'repeat-x'; }
if (typeof image === 'string')
{
image = this.game.cache.getImage(image);
if (!image)
{
return;
}
}
var width = line.length;
if (repeat === 'no-repeat' && width > image.width)
{
width = image.width;
}
this.context.fillStyle = this.context.createPattern(image, repeat);
this._circle = new Phaser.Circle(line.start.x, line.start.y, image.height);
this._circle.circumferencePoint(line.angle - 1.5707963267948966, false, this._pos);
this.context.save();
this.context.translate(this._pos.x, this._pos.y);
this.context.rotate(line.angle);
this.context.fillRect(0, 0, width, image.height);
this.context.restore();
this.dirty = true;
return this;
},
/**
* If the game is running in WebGL this will push the texture up to the GPU if it's dirty.
* This is called automatically if the BitmapData is being used by a Sprite, otherwise you need to remember to call it in your render function.
* If you wish to suppress this functionality set BitmapData.disableTextureUpload to `true`.
*
* @method Phaser.BitmapData#render
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
render: function () {
if (!this.disableTextureUpload && this.dirty)
{
this.baseTexture.dirty();
this.dirty = false;
}
return this;
},
/**
* Resets the blend mode (effectively sets it to 'source-over')
*
* @method Phaser.BitmapData#blendReset
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendReset: function () {
this.context.globalCompositeOperation = 'source-over';
return this;
},
/**
* Sets the blend mode to 'source-over'
*
* @method Phaser.BitmapData#blendSourceOver
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendSourceOver: function () {
this.context.globalCompositeOperation = 'source-over';
return this;
},
/**
* Sets the blend mode to 'source-in'
*
* @method Phaser.BitmapData#blendSourceIn
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendSourceIn: function () {
this.context.globalCompositeOperation = 'source-in';
return this;
},
/**
* Sets the blend mode to 'source-out'
*
* @method Phaser.BitmapData#blendSourceOut
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendSourceOut: function () {
this.context.globalCompositeOperation = 'source-out';
return this;
},
/**
* Sets the blend mode to 'source-atop'
*
* @method Phaser.BitmapData#blendSourceAtop
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendSourceAtop: function () {
this.context.globalCompositeOperation = 'source-atop';
return this;
},
/**
* Sets the blend mode to 'destination-over'
*
* @method Phaser.BitmapData#blendDestinationOver
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendDestinationOver: function () {
this.context.globalCompositeOperation = 'destination-over';
return this;
},
/**
* Sets the blend mode to 'destination-in'
*
* @method Phaser.BitmapData#blendDestinationIn
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendDestinationIn: function () {
this.context.globalCompositeOperation = 'destination-in';
return this;
},
/**
* Sets the blend mode to 'destination-out'
*
* @method Phaser.BitmapData#blendDestinationOut
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendDestinationOut: function () {
this.context.globalCompositeOperation = 'destination-out';
return this;
},
/**
* Sets the blend mode to 'destination-atop'
*
* @method Phaser.BitmapData#blendDestinationAtop
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendDestinationAtop: function () {
this.context.globalCompositeOperation = 'destination-atop';
return this;
},
/**
* Sets the blend mode to 'xor'
*
* @method Phaser.BitmapData#blendXor
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendXor: function () {
this.context.globalCompositeOperation = 'xor';
return this;
},
/**
* Sets the blend mode to 'lighter'
*
* @method Phaser.BitmapData#blendAdd
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendAdd: function () {
this.context.globalCompositeOperation = 'lighter';
return this;
},
/**
* Sets the blend mode to 'multiply'
*
* @method Phaser.BitmapData#blendMultiply
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendMultiply: function () {
this.context.globalCompositeOperation = 'multiply';
return this;
},
/**
* Sets the blend mode to 'screen'
*
* @method Phaser.BitmapData#blendScreen
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendScreen: function () {
this.context.globalCompositeOperation = 'screen';
return this;
},
/**
* Sets the blend mode to 'overlay'
*
* @method Phaser.BitmapData#blendOverlay
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendOverlay: function () {
this.context.globalCompositeOperation = 'overlay';
return this;
},
/**
* Sets the blend mode to 'darken'
*
* @method Phaser.BitmapData#blendDarken
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendDarken: function () {
this.context.globalCompositeOperation = 'darken';
return this;
},
/**
* Sets the blend mode to 'lighten'
*
* @method Phaser.BitmapData#blendLighten
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendLighten: function () {
this.context.globalCompositeOperation = 'lighten';
return this;
},
/**
* Sets the blend mode to 'color-dodge'
*
* @method Phaser.BitmapData#blendColorDodge
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendColorDodge: function () {
this.context.globalCompositeOperation = 'color-dodge';
return this;
},
/**
* Sets the blend mode to 'color-burn'
*
* @method Phaser.BitmapData#blendColorBurn
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendColorBurn: function () {
this.context.globalCompositeOperation = 'color-burn';
return this;
},
/**
* Sets the blend mode to 'hard-light'
*
* @method Phaser.BitmapData#blendHardLight
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendHardLight: function () {
this.context.globalCompositeOperation = 'hard-light';
return this;
},
/**
* Sets the blend mode to 'soft-light'
*
* @method Phaser.BitmapData#blendSoftLight
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendSoftLight: function () {
this.context.globalCompositeOperation = 'soft-light';
return this;
},
/**
* Sets the blend mode to 'difference'
*
* @method Phaser.BitmapData#blendDifference
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendDifference: function () {
this.context.globalCompositeOperation = 'difference';
return this;
},
/**
* Sets the blend mode to 'exclusion'
*
* @method Phaser.BitmapData#blendExclusion
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendExclusion: function () {
this.context.globalCompositeOperation = 'exclusion';
return this;
},
/**
* Sets the blend mode to 'hue'
*
* @method Phaser.BitmapData#blendHue
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendHue: function () {
this.context.globalCompositeOperation = 'hue';
return this;
},
/**
* Sets the blend mode to 'saturation'
*
* @method Phaser.BitmapData#blendSaturation
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendSaturation: function () {
this.context.globalCompositeOperation = 'saturation';
return this;
},
/**
* Sets the blend mode to 'color'
*
* @method Phaser.BitmapData#blendColor
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendColor: function () {
this.context.globalCompositeOperation = 'color';
return this;
},
/**
* Sets the blend mode to 'luminosity'
*
* @method Phaser.BitmapData#blendLuminosity
* @return {Phaser.BitmapData} This BitmapData object for method chaining.
*/
blendLuminosity: function () {
this.context.globalCompositeOperation = 'luminosity';
return this;
}
};
/**
* @memberof Phaser.BitmapData
* @property {boolean} smoothed - Gets or sets this BitmapData.contexts smoothing enabled value.
*/
Object.defineProperty(Phaser.BitmapData.prototype, "smoothed", {
get: function () {
Phaser.Canvas.getSmoothingEnabled(this.context);
},
set: function (value) {
Phaser.Canvas.setSmoothingEnabled(this.context, value);
}
});
/**
* Gets a JavaScript object that has 6 properties set that are used by BitmapData in a transform.
*
* @method Phaser.BitmapData.getTransform
* @param {number} translateX - The x translate value.
* @param {number} translateY - The y translate value.
* @param {number} scaleX - The scale x value.
* @param {number} scaleY - The scale y value.
* @param {number} skewX - The skew x value.
* @param {number} skewY - The skew y value.
* @return {object} A JavaScript object containing all of the properties BitmapData needs for transforms.
*/
Phaser.BitmapData.getTransform = function (translateX, translateY, scaleX, scaleY, skewX, skewY) {
if (typeof translateX !== 'number') { translateX = 0; }
if (typeof translateY !== 'number') { translateY = 0; }
if (typeof scaleX !== 'number') { scaleX = 1; }
if (typeof scaleY !== 'number') { scaleY = 1; }
if (typeof skewX !== 'number') { skewX = 0; }
if (typeof skewY !== 'number') { skewY = 0; }
return { sx: scaleX, sy: scaleY, scaleX: scaleX, scaleY: scaleY, skewX: skewX, skewY: skewY, translateX: translateX, translateY: translateY, tx: translateX, ty: translateY };
};
Phaser.BitmapData.prototype.constructor = Phaser.BitmapData;
