[HaxePunk] Grid on Pixelmask/Imagemask collision checking

        _point.x = _parent.x + _x - _parent.originX;
        _point.y = _parent.y + _y - _parent.originY;
        if(Std.instance(other, Imagemask) != null) // 'other' inherits from Imagemask
        {
            _rect = cast(other, Imagemask).getBounds();
            _rect.x += other._parent.x;
            _rect.y += other._parent.y;
        }
        else
        {
            _rect.x = other._parent.x + other.x - other._parent.originX;
            _rect.y = other._parent.y + other.y - other._parent.originY;
            _rect.width = other.width;
            _rect.height = other.height;
        }

        var r1 = new Rectangle(_point.x, _point.y, _width, _height);

        var intersect = r1.intersection(_rect);

        trace(r1, _rect, intersect);

        if(intersect.isEmpty())
            return false;

        for(dx in Math.floor(intersect.x - _rect.x) ...Math.floor(intersect.x - _rect.x + intersect.width))
        {
            for(dy in Math.floor(intersect.y - _rect.y) ...Math.floor(intersect.y - _rect.y + intersect.height))
            {
                var tx = Std.int((dx + _rect.x) / _tile.width), ty = Std.int((dy + _rect.y) / _tile.height);
                if (data[ty][tx] && (other.data.getPixel32(dx, dy) >> 24) & 0xFF > 0)
                {
                    return true;
                }
            }
        }