updated pixi to v2

app/Lib/Vendor/src/pixi/geom/Polygon.js

@@ -0,0 +1,76 @@
+/**
+ * @author Adrien Brault <adrien.brault@gmail.com>
+ */
+
+/**
+ * @class Polygon
+ * @constructor
+ * @param points* {Array(Point)|Array(Number)|Point...|Number...} This can be an array of Points that form the polygon,
+ *      a flat array of numbers that will be interpreted as [x,y, x,y, ...], or the arguments passed can be
+ *      all the points of the polygon e.g. `new PIXI.Polygon(new PIXI.Point(), new PIXI.Point(), ...)`, or the
+ *      arguments passed can be flat x,y values e.g. `new PIXI.Polygon(x,y, x,y, x,y, ...)` where `x` and `y` are
+ *      Numbers.
+ */
+PIXI.Polygon = function(points)
+{
+    //if points isn't an array, use arguments as the array
+    if(!(points instanceof Array))points = Array.prototype.slice.call(arguments);
+
+    //if this is a flat array of numbers, convert it to points
+    if(points[0] instanceof PIXI.Point)
+    {
+        var p = [];
+        for(var i = 0, il = points.length; i < il; i++)
+        {
+            p.push(points[i].x, points[i].y);
+        }
+
+        points = p;
+    }
+
+    this.closed = true;
+    this.points = points;
+};
+
+/**
+ * Creates a clone of this polygon
+ *
+ * @method clone
+ * @return {Polygon} a copy of the polygon
+ */
+PIXI.Polygon.prototype.clone = function()
+{
+    var points = this.points.slice();
+    return new PIXI.Polygon(points);
+};
+
+/**
+ * Checks whether the x and y coordinates passed to this function are contained within this polygon
+ *
+ * @method contains
+ * @param x {Number} The X coordinate of the point to test
+ * @param y {Number} The Y coordinate of the point to test
+ * @return {Boolean} Whether the x/y coordinates are within this polygon
+ */
+PIXI.Polygon.prototype.contains = function(x, y)
+{
+    var inside = false;
+
+    // use some raycasting to test hits
+    // https://github.com/substack/point-in-polygon/blob/master/index.js
+    var length = this.points.length / 2;
+
+    for(var i = 0, j = length - 1; i < length; j = i++)
+    {
+        var xi = this.points[i * 2], yi = this.points[i * 2 + 1],
+            xj = this.points[j * 2], yj = this.points[j * 2 + 1],
+            intersect = ((yi > y) !== (yj > y)) && (x < (xj - xi) * (y - yi) / (yj - yi) + xi);
+
+        if(intersect) inside = !inside;
+    }
+
+    return inside;
+};
+
+// constructor
+PIXI.Polygon.prototype.constructor = PIXI.Polygon;