Alpha version

src/pixi/Sprite.js

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+/**
+ * @author Mat Groves http://matgroves.com/
+ */
+var PIXI = PIXI || {};
+
+PIXI.blendModes = {};
+PIXI.blendModes.NORMAL = 0;
+PIXI.blendModes.SCREEN = 1;
+
+/**
+ * @class A Sprite
+ * @augments PIXI.DisplayObjectContainer
+ * @constructor
+ * @param {PIXI.textures.Texture} texture {@link PIXI.textures.Texture}
+ * @return A new Sprite.
+ */
+PIXI.Sprite = function(texture)
+{
+	PIXI.DisplayObjectContainer.call( this );
+	
+	/**
+	 * The anchor sets the origin point of the texture.
+	 * The default is 0,0 this means the textures origin is the top left 
+	 * Setting than anchor to 0.5,0.5 means the textures origin is centered
+	 * Setting the anchor to 1,1 would mean the textures origin points will be the bottom right
+	 * @type #Point
+	 */
+	this.anchor = new PIXI.Point();
+	
+	/**
+	 * The texture that the sprite is using
+	 * @type #Point
+	 */
+	this.texture = texture;
+	
+	/**
+	 * The blend mode of sprite.
+	 * currently supports PIXI.blendModes.NORMAL and PIXI.blendModes.SCREEN
+	 * @type uint
+	 */
+	this.blendMode = PIXI.blendModes.NORMAL;
+	
+	/**
+	 * The width of the sprite (this is initially set by the texture)
+	 * @type #Number
+	 */
+	this.width = 1;
+	
+	/**
+	 * The height of the sprite (this is initially set by the texture)
+	 * @type #Number
+	 */
+	this.height = 1;
+	
+	if(texture.baseTexture.hasLoaded)
+	{
+		this.width   = this.texture.frame.width;
+		this.height  = this.texture.frame.height;
+		this.updateFrame = true;
+	}
+	else
+	{
+		this.onTextureUpdateBind = this.onTextureUpdate.bind(this);
+		this.texture.addEventListener( 'update', this.onTextureUpdateBind );
+	}
+	
+	this.renderable = true;
+}
+
+// constructor
+PIXI.Sprite.constructor = PIXI.Sprite;
+PIXI.Sprite.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
+
+/**
+ * The PIXI texture that is displayed by the sprite
+ * @param {PIXI.Texture} texture {@link PIXI.Texture}
+ */
+PIXI.Sprite.prototype.setTexture = function(texture)
+{
+	// stop current texture;
+	if(this.texture.baseTexture != texture.baseTexture)
+	{
+		this.textureChange = true;	
+	}
+	
+	this.texture = texture;
+	this.width   = texture.frame.width;
+	this.height  = texture.frame.height;
+	this.updateFrame = true;
+	
+}
+
+/**
+ * @private
+ */
+PIXI.Sprite.prototype.onTextureUpdate = function(event)
+{
+	this.width   = this.texture.frame.width;
+	this.height  = this.texture.frame.height;
+	this.updateFrame = true;
+}
+
+// some helper functions..
+
+
+/**
+ * 
+ * Helper function that creates a sprite that will contain a texture from the TextureCache based on tjhe frameId
+ * The frame ids are created when a Texture packer file has been loaded
+ * @param The frame Id of the texture in the cache
+ * @return {PIXI.Sprite} texture {@link PIXI.Sprite}
+ */
+PIXI.Sprite.fromFrame = function(frameId)
+{
+	var texture = PIXI.TextureCache[frameId];
+	if(!texture)throw new Error("The frameId '"+ frameId +"' does not exist in the texture cache" + this);
+	return new PIXI.Sprite(texture);
+}
+
+/**
+ * 
+ * Helper function that creates a sprite that will contain a texture based on an image url
+ * If the image is not in the texture cache it will be loaded
+ * @param The image url of the texture
+ * @return {PIXI.Sprite} texture {@link PIXI.Sprite}
+ */
+PIXI.Sprite.fromImage = function(imageId)
+{
+	var texture = PIXI.Texture.fromImage(imageId);
+	return new PIXI.Sprite(texture);
+}
+