Hi, i wrote a code in which i used a Pointer that should tell my player-model to move on w

ENTITY* robot;


function move_ahead()
{
robot.x += 5;
}

function main()
{
video_switch (8,32,1);
level_load ("Drohne_Level.wmb");
on_w = move_ahead;
}


action Drohne()
{
robot = me;
}

, but after i had started the programm
evertime i pressed the engine only told me theres an empty Pointer.

Does anyone know what's my mistake?

Thanks in advance, v_sola.