tile_layer_shift(-102, -1, 0)
xoff -= 1
if (xoff > 16)
    alarm[0] = 3
if (xoff == 351)
    sfx_loop(sndStoneLoop)
else if (xoff == 16)
    sfx_stop(sndStoneLoop)
if oControl.widescreen
{
    if (oCamera.limit < ((oControl.widescreen_space / 2) + 160))
        oCamera.limit++
    oCamera.limit = floor(oCamera.limit)
}