def kreatywny():
    gameplay.set_game_mode(CREATIVE, mobs.target(NEAREST_PLAYER))
player.on_chat("k", kreatywny)

def survival():
    gameplay.set_game_mode(SURVIVAL, mobs.target(NEAREST_PLAYER))
player.on_chat("s", survival)

def smierc():
    gameplay.set_game_mode(CREATIVE, mobs.target(NEAREST_PLAYER))
player.on_died(smierc)

def ekwipunek():
    pass

def wyspa(promien, liczba_zlota, liczba_kaktusow):
    start = player.position()
    player.execute("/setworldspawn " + start)
    kaktusy = [start]
    bok = promien/2

    for i in range (1,5):
        shapes.circle(
            WATER, 
            positions.add(start, pos(0, -i, 0)), 
            promien + 5, 
            Axis.Y, 
            ShapeOperation.REPLACE)

def start(promien, zloto, kaktusy):
    ekwipunek()
    wyspa(promien, zloto, kaktusy)
player.on_chat("start", start)