Turtle Treefarm

for a= 1,7,1 do
    turtle.down();
end
turtle.back();
turtle.back();
turtle.back();
turtle.back();
function tree()
    arsch=0;
    turtle.select(15);
    while turtle.compareUp()==true do
        turtle.select(1);
        turtle.dig();
        turtle.digUp();
        turtle.up();
        for m= 1,4,1 do
            turtle.dig();
            turtle.turnRight();
        end
        turtle.select(15);
        arsch=arsch+1;
    end
end
function clear()
    for penis= 1,13,1 do
        turtle.select(penis);
        turtle.drop();
    end
    turtle.select(15);
    turtle.drop(turtle.getItemCount(15)-1);
    turtle.select(1);
end
function refuel()
    if(turtle.getFuelLevel() <= 100) then
        turtle.select(16);
        if(turtle.getItemCount(16)<=0) then
            turtle.suckDown(10);
        end
        turtle.refuel(1);
        turtle.select(1);
    end
end
    io.write(" slot 14: Stecklinge ".." slot 15 :Baumholz des Baums".."slot 16:kohle  /n Beute über cole,Stecklinge hinter, Cole runter");
    while(0==0) do
    refuel();
    turtle.forward();
    turtle.select(14);
    turtle.place();
    turtle.select(15);
    while(turtle.compare()==false) do

    end
    turtle.dig();
    turtle.forward();
    tree();
    for m = 1,15,1 do
        turtle.down();
    end
    for m = 1,4,1 do
        turtle.suck();
        turtle.turnRight();
    end
    turtle.down();
    turtle.turnRight();
    turtle.turnRight();
    turtle.dig();
    turtle.forward();
    turtle.dig();
    turtle.forward();
    turtle.digUp();
    turtle.up();
    clear();
    turtle.down();
    while turtle.getItemCount(14) ==0 do
        turtle.select(14);
        turtle.suck(1);
    end
    turtle.select(14);
    refuel();
    turtle.turnRight();
    turtle.turnRight();
    turtle.select(1);

    end