reed

args = {...}

height = args[2]
width = args[1]

if height == nil then
    print("reed [width] height")
    return
end
if width == nil then
    print("reed width [height]")
    return
end

x = 0
y = 0
dir = 1

print(height)
print(width)

go = turtle


--
--  Sjekker om vi har nok brennstoff
--
function checkFuel()
    print("Fuel:", go.getFuelLevel())
    level = getFuel(width * height)
    if go.getFuelLevel() < 300 then
        print("Fuel has to exceed ", 300)
        return
    end
end

--
--  Dig
--
function dig()
    go.up()
    go.dig()
    go.down()
    go.dig()
end


--
--  Forrover
--
function forward()
    dig()
    if go.forward() then
        y = y + dir
    end
    print(x, y)
end

function right()
    go.turnRight()
    go.forward()
    dig()
    go.forward()
    go.turnRight()
    dir = -1
    x = x + 2
    print(x, y)
end

function left()
    go.turnLeft()
    go.forward()
    dig()
    go.forward()
    go.turnLeft()
    dir = 1
    x = x + 2
    print(x, y)
end

function empty()
    for inv = 1, 16, 1 do
        turtle.select(inv)
        turtle.drop()
    end
end

function home()
    if dir == 1 then
        go.turnLeft()
        go.turnLeft()
        print("turning")
    end
    for i=0, y-1 do
        dig()
        turtle.forward()
    end
    go.turnRight()
    for i=0, x-1 do
        dig()
        turtle.forward()
    end
    go.turnLeft()
    empty()
    go.turnRight()
    go.turnRight()
end

checkFuel()
for X=0, math.floor((width)/2)-1 do
    for Y=0, height-1 do
        forward()
    end
    right()
    for Y=0, height-1 do
        forward()
    end
    left()
end
home()