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<h1 class="file-heading">File: src/pixi/core/Matrix.js</h1>
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<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
PIXI.determineMatrixArrayType = function() {
return (typeof Float32Array !== 'undefined') ? Float32Array : Array;
};
/*
* @class Matrix2
* The Matrix2 class will choose the best type of array to use between
* a regular javascript Array and a Float32Array if the latter is available
*
*/
PIXI.Matrix2 = PIXI.determineMatrixArrayType();
/*
* @class Matrix
* The Matrix class is now an object, which makes it a lot faster,
* here is a representation of it :
* | a | b | tx|
* | c | c | ty|
* | 0 | 0 | 1 |
*
*/
PIXI.Matrix = function()
{
this.a = 1;
this.b = 0;
this.c = 0;
this.d = 1;
this.tx = 0;
this.ty = 0;
};
/**
* Creates a pixi matrix object based on the array given as a parameter
*
* @method fromArray
* @param array {Array} The array that the matrix will be filled with
*/
PIXI.Matrix.prototype.fromArray = function(array)
{
this.a = array[0];
this.b = array[1];
this.c = array[3];
this.d = array[4];
this.tx = array[2];
this.ty = array[5];
};
/**
* Creates an array from the current Matrix object
*
* @method toArray
* @param transpose {Boolean} Whether we need to transpose the matrix or not
* @return array {Array} the newly created array which contains the matrix
*/
PIXI.Matrix.prototype.toArray = function(transpose)
{
if(!this.array) this.array = new Float32Array(9);
var array = this.array;
if(transpose)
{
this.array[0] = this.a;
this.array[1] = this.c;
this.array[2] = 0;
this.array[3] = this.b;
this.array[4] = this.d;
this.array[5] = 0;
this.array[6] = this.tx;
this.array[7] = this.ty;
this.array[8] = 1;
}
else
{
this.array[0] = this.a;
this.array[1] = this.b;
this.array[2] = this.tx;
this.array[3] = this.c;
this.array[4] = this.d;
this.array[5] = this.ty;
this.array[6] = 0;
this.array[7] = 0;
this.array[8] = 1;
}
return array;//[this.a, this.b, this.tx, this.c, this.d, this.ty, 0, 0, 1];
};
PIXI.identityMatrix = new PIXI.Matrix();
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