Snake - drawSnake()

positionenX = {xMitte-4,xMitte-3,xMitte-2,xMitte-1,xMitte}
positionenY = {yMitte-4,yMitte-3,yMitte-2,yMitte-1,yMitte}

function drawSnake(newPosX, newPosY, length)
    mon.setBackgroundColor(colors.cyan)
    for i=1,#positionenX do
        mon.setCursorPos(positionenX[i],positionenY[i])
        mon.write(" ")
    end

    for i=2,length do
        positionenX[i] = positionenX[i-1]
        positionenY[i] = positionenY[i-1]
    end
    positionenX[1] = newPosX
    positionenY[1] = newPosY

    mon.setBackgroundColor(colors.white)
    for i=1,#positionenX do
        mon.setCursorPos(positionenX[i],positionenY[i])
        mon.write(" ")
    end
end