on rightclick:
    player is riding minecart
    block infront of player is stone
    push player's vehicle upward at speed 3
    loop blocks between block above block at player and block above the block 1 meters horizontal infront of player:
        loop-block is air
        set {_rail::%location of loop-block%} to location of loop-block
        set loop-block to rail
    push player's vehicle horizontal facing of player at speed 10
    wait 0.2 second
    loop {_rail::*}:
        set block at loop-value to air