var cx = camerax();
var cy = cameray();
var buff = 60;
if (point_in_rectangle(x, y, cx - buff, cy - buff, cx + 640 + buff, cy + 480 + buff))
{
    var angle = image_angle - (y * 2);
    var cnt = array_length(xp);
    gpu_set_fog(true, #B1B6C2, 0, 0);
    for (var i = 0; i < cnt; i++)
    {
        if ((i % 2) == 0)
            draw_sprite_ext(sprite_index, image_index, xp[i], yp[i], (1.8 * i) / cnt, (1.8 * i) / cnt, angle + ((i + 1) * 4), c_white, (image_alpha * i) / cnt);
    }
    gpu_set_fog(false, c_white, 0, 0);
    draw_sprite_ext(sprite_index, image_index, x, y, 2, 2, angle, c_white, image_alpha);
}