GameLib.API.Vector4 = function (x, y, z, w) {

    if (GameLib.Utils.UndefinedOrNull(x)) {
        x = 0;
    }
    this.x = x;

    if (GameLib.Utils.UndefinedOrNull(y)) {
        y = 0;
    }
    this.y = y;

    if (GameLib.Utils.UndefinedOrNull(z)) {
        z = 0;
    }
    this.z = z;

    if (GameLib.Utils.UndefinedOrNull(w)) {
        w = 1;
    }
    this.w = w;
};