Robot
    picture
    shadow
    speed = double
    max_energy = Energy("0J")
    energy_per_move = Energy("0J")
    energy_per_tick = Energy("0J")
    min_to_charge = float(0.2)
    max_to_charge = float(0.95)
    speed_multiplier_when_out_of_energy = float(0) -- if not 0 robot is not destroyed when out of energy!
    