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<h1 class="file-heading">File: src/pixi/core/Matrix.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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PIXI.determineMatrixArrayType = function() {
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return (typeof Float32Array !== 'undefined') ? Float32Array : Array;
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};
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/*
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* @class Matrix2
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* The Matrix2 class will choose the best type of array to use between
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* a regular javascript Array and a Float32Array if the latter is available
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*
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*/
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PIXI.Matrix2 = PIXI.determineMatrixArrayType();
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/*
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* @class Matrix
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* The Matrix class is now an object, which makes it a lot faster,
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* here is a representation of it :
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* | a | b | tx|
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* | c | c | ty|
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* | 0 | 0 | 1 |
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*
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*/
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PIXI.Matrix = function()
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{
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this.a = 1;
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this.b = 0;
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this.c = 0;
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this.d = 1;
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this.tx = 0;
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this.ty = 0;
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};
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/**
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* Creates a pixi matrix object based on the array given as a parameter
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*
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* @method fromArray
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* @param array {Array} The array that the matrix will be filled with
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*/
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PIXI.Matrix.prototype.fromArray = function(array)
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{
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this.a = array[0];
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this.b = array[1];
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this.c = array[3];
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this.d = array[4];
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this.tx = array[2];
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this.ty = array[5];
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};
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/**
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* Creates an array from the current Matrix object
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*
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* @method toArray
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* @param transpose {Boolean} Whether we need to transpose the matrix or not
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* @return array {Array} the newly created array which contains the matrix
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*/
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PIXI.Matrix.prototype.toArray = function(transpose)
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{
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if(!this.array) this.array = new Float32Array(9);
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var array = this.array;
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if(transpose)
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{
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this.array[0] = this.a;
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this.array[1] = this.c;
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this.array[2] = 0;
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this.array[3] = this.b;
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this.array[4] = this.d;
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this.array[5] = 0;
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this.array[6] = this.tx;
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this.array[7] = this.ty;
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this.array[8] = 1;
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}
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else
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{
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this.array[0] = this.a;
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this.array[1] = this.b;
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this.array[2] = this.tx;
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this.array[3] = this.c;
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this.array[4] = this.d;
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this.array[5] = this.ty;
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this.array[6] = 0;
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this.array[7] = 0;
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this.array[8] = 1;
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}
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return array;//[this.a, this.b, this.tx, this.c, this.d, this.ty, 0, 0, 1];
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};
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PIXI.identityMatrix = new PIXI.Matrix();
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</pre>
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