cshot = instance_create(305, global.idealborder[2], obj_carrotshot);
if (instance_exists(cshot))
{
    cshot.dmg = dmg;
    if (shake == 1)
    {
        cshot.shake = 1;
        cshot.alarm[0] = 2;
    }
    alarm[0] = rate / 3;
    if (mode == 1)
    {
        cshot2 = instance_create(305, global.idealborder[3], obj_carrotshot);
        if (instance_exists(cshot2))
        {
            cshot2.gravity = -cshot.gravity;
            cshot2.hspeed = -cshot.hspeed;
            cshot2.dmg = dmg;
        }
        alarm[0] = rate;
    }
}