if (oo == 0)
    oo = 1;
else
    oo = 0;
if (oo == 0)
    obj.x = thisx - shx;
if (oo == 1)
    obj.x = thisx + shx;
shx -= 1;
if (shx > 0)
{
    alarm[1] = shaketime;
}
else
{
    obj.x = thisx;
    instance_destroy();
}