function scr_spritecenter_y(arg0)
{
    var _spriteCenterLen = point_distance(0, 0, arg0.sprite_width / 2, arg0.sprite_height);
    var _spriteCenterDir = point_direction(0, 0, arg0.sprite_width / 2, arg0.sprite_height);
    return arg0.y + lengthdir_y(_spriteCenterLen, _spriteCenterDir + arg0.image_angle);
}