stripmine.lua

gTorchSlot=1
gBridgeSlot=2
gFuelSlot=3

gLineNumber=1
gBrancheNumber=2

gLineGap=14
gBranchGap=3

gPosLine=0
gPosBranch=0
gPosStrip=0

function move(moveLength,moveDirection)
    -- moves
    -- 0 forward
    -- 1 back
    -- 2 up
    -- 3 down
    for i=1,moveLength do
        if moveDirection==0 then
            while turtle.forward()==false do end
        elseif moveDirection==1 then
            while turtle.back()==false do end
        elseif moveDirection==2 then
            while turtle.up()==false do end
        elseif moveDirection==3 then
            while turtle.down()==false do end
        end
    end
end

function turnAround()
    -- turns the turtle 180°
    turtle.turnLeft()
    turtle.turnLeft()
end

function moveTo(moveToLine,moveToBranch,moveToStrip)
    -- moves turtle to defined position

function mineFwd(digLength,torchAtEnd)
    -- mines 1×2 tunnel (start top block)
    -- if torchAtEnd==true, places torch on last block
    for iFwd=1,digLength do
        while turtle.detect() do
            turtle.dig()
            os.sleep(0.5)
        end
        move(1,0)
        turtle.digDown()
        move(1,3)
        if turtle.detectDown() == false then
            turtle.select(bridgeSlot)
            turtle.placeDown()
        end
        move(1,2)
    end
    if torchAtEnd then
        turtle.select(torchSlot)
        turtle.placeDown()
    end
end

function branch(branchNum,branchDist,branchLength)
    -- creates branches
    for iBranch=1,branchNum do
        mineFwd(branchDist,true)
        turtle.turnRight()
        mineFwd(branchLength,false)
        turnAround()
        move(branchLength,0)
        mineFwd(branchLength,false)
        move(branchLength,1)
        turtle.turnRight()
    end
    move(branchNum*branchDist,1)
end