phaser/src/polyfills/Uint32Array.js at e75731df8753cc6ffd9725b755bd452dab11e0d0 · ITCSsDeveloper/phaser · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
/**
* Low-budget Float32Array knock-off, suitable for use with P2.js in IE9
* Source: http://www.html5gamedevs.com/topic/5988-phaser-12-ie9/
* Cameron Foale (http://www.kibibu.com)
*/
if (typeof window.Uint32Array !== "function" && typeof window.Uint32Array !== "object")
{
    var CheapArray = function(type)
    {
        var proto = new Array(); // jshint ignore:line

        window[type] = function(arg) {

            if (typeof(arg) === "number")
            {
                Array.call(this, arg);
                this.length = arg;

                for (var i = 0; i < this.length; i++)
                {
                    this[i] = 0;
                }
            }
            else
            {
                Array.call(this, arg.length);

                this.length = arg.length;

                for (var i = 0; i < this.length; i++)
                {
                    this[i] = arg[i];
                }
            }
        };

        window[type].prototype = proto;
        window[type].constructor = window[type];
    };

    CheapArray('Float32Array'); // jshint ignore:line
    CheapArray('Uint32Array'); // jshint ignore:line
    CheapArray('Uint16Array'); // jshint ignore:line
    CheapArray('Int16Array'); // jshint ignore:line
    CheapArray('ArrayBuffer'); // jshint ignore:line
}