241 lines
7 KiB
HTML
241 lines
7 KiB
HTML
<!DOCTYPE html>
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<title>pixi/DisplayObject.js - Pixi.js API</title>
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<em>API Docs for: 0.9</em>
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<li><a href="../classes/CanvasRenderer.html">CanvasRenderer</a></li>
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<li><a href="../classes/DisplayObject.html">DisplayObject</a></li>
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<li><a href="../classes/DisplayObjectContainer.html">DisplayObjectContainer</a></li>
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<li><a href="../classes/MovieClip.html">MovieClip</a></li>
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<h1 class="file-heading">File: pixi/DisplayObject.js</h1>
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<div class="file">
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<pre class="code prettyprint linenums">
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/**
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* @author Mat Groves http://matgroves.com/ @Doormat23
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*/
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/**
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* this is the base class for all objects that are rendered on the screen.
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* @class DisplayObject
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* @constructor
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*/
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PIXI.DisplayObject = function()
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{
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/**
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* The coordinate of the object relative to the local coordinates of the parent.
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* @property position
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* @type Point
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*/
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this.position = new PIXI.Point();
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/**
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* The scale factor of the object.
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* @property scale
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* @type Point
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*/
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this.scale = new PIXI.Point(1,1);//{x:1, y:1};
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/**
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* The rotation of the object in radians.
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* @property rotation
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* @type Number
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*/
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this.rotation = 0;
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/**
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* The opacity of the object.
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* @property alpha
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* @type Number
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*/
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this.alpha = 1;
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/**
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* The visibility of the object.
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* @property visible
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* @type Boolean
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*/
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this.visible = true;
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this.cacheVisible = false;
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/**
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* [read-only] The display object container that contains this display object.
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* @property parent
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* @type DisplayObjectContainer
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*/
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this.parent = null;
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/**
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* [read-only] The stage the display object is connected to, or undefined if it is not connected to the stage.
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* @property stage
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* @type Stage
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*/
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this.stage = null;
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this.worldAlpha = 1;
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this.color = [];
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this.worldTransform = mat3.identity();
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this.localTransform = mat3.identity();
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this.dynamic = true;
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// chach that puppy!
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this._sr = 0;
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this._cr = 1;
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this.renderable = false;
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}
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// constructor
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PIXI.DisplayObject.constructor = PIXI.DisplayObject;
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/**
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* @private
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*/
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PIXI.DisplayObject.prototype.updateTransform = function()
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{
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// TODO OPTIMIZE THIS!! with dirty
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if(this.rotation != this.rotationCache)
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{
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this.rotationCach = this.rotation;
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this._sr = Math.sin(this.rotation);
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this._cr = Math.cos(this.rotation);
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}
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this.localTransform[0] = this._cr * this.scale.x;
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this.localTransform[1] = -this._sr * this.scale.y
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this.localTransform[3] = this._sr * this.scale.x;
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this.localTransform[4] = this._cr * this.scale.y;
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///AAARR GETTER SETTTER!
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this.localTransform[2] = this.position.x;
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this.localTransform[5] = this.position.y;
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// TODO optimize?
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mat3.multiply(this.localTransform, this.parent.worldTransform, this.worldTransform);
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this.worldAlpha = this.alpha * this.parent.worldAlpha;
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}
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</pre>
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