with (instance_create(irandom_range((bbox_left + sprite_get_width(spr_dunes_boulder_shadow) / 2), (bbox_right - sprite_get_width(spr_dunes_boulder_shadow) / 2)), 0, obj_dunes_boulders))
{
    y_target = irandom_range(other.bbox_bottom, other.bbox_top)
    y_target = (clamp(y_target, (other.bbox_top + sprite_height / 2 + sprite_get_height(spr_dunes_boulder_shadow) / 2), other.bbox_bottom)) - sprite_height / 2 - sprite_get_height(spr_dunes_boulder_shadow) / 2
    y = y_target - 300
}
alarm[0] = irandom_range(15, 50)