if (vspeed < 0)
{
    if (y < (global.idealborder[2] - sprite_height))
        y = global.idealborder[3];
}
if (vspeed > 0)
{
    if (y > global.idealborder[3])
        y = global.idealborder[2] - sprite_height;
}
if (hspeed < 0 && x < 0)
    instance_destroy();
if (hspeed > 0 && x > room_width)
    instance_destroy();