ttturtle

pX = 0
pZ = 0
pY = 0

dX = 0
dZ = 0
dY = 0

oX = 1 --Assume the turtle is set on the X axis at start
oZ = 0

tX = 1
tZ = 0

mineWidth = 10
mineLenght = 3

running = true
debug = true

debug = false

	function main()
		for i = 0, mineWidth do

			refuel()

			while pX < mineLenght do
				moveForward()
				inspectUp()
				inspectDown()
				turnRight()
				inspect()
				turnRight()
				turnRight()
				inspect()
				turnRight()
			end

			moveUp()
			moveUp()
			moveUp()
			turnRight()
			turnRight()

			refuel()

			while pX > 0 do
				moveForward()
				inspectUp()
				inspectDown()
				turnRight()
				inspect()
				turnRight()
				turnRight()
				inspect()
				turnRight()
			end

			turnRight()
			moveForward()
			moveForward()
			moveDown()
			turnRight()

			refuel()

			while pX < mineLenght do
				moveForward()
				inspectUp()
				inspectDown()
				turnRight()
				inspect()
				turnRight()
				turnRight()
				inspect()
				turnRight()
			end

			turnRight()
			turnRight()
			moveDown()

			refuel()

			while pX > 0 do
				moveForward()
				inspectUp()
				inspectDown()
				turnRight()
				inspect()
				turnRight()
				turnRight()
				inspect()
				turnRight()
			end

			turnRight()
			moveForward()
			moveForward()
			moveDown()
			turnRight()
		end
	end

	function refuel()
		fuelLevel = turtle.getFuelLevel()

		if(fuelLevel < 1000) then
			for slot = 1,16 do
				turtle.select(slot)
				if turtle.refuel(1) then
					return true
				end
			end
		else
			--goHome()
			--shutDown()
		end
	end

	function inspect()
		if debug then
			print ("Position : "..pX.." "..pZ.." "..pY)
			print ("Orientation: "..oX.." "..oZ)
		end
		success,material = turtle.inspect()
		if material.name ~= "minecraft:stone" and material.name ~= "minecraft:dirt" then
			turtle.dig()
		end
	end

	function inspectUp()
		success,material = turtle.inspectUp()
		if material.name ~= "minecraft:stone" and material.name ~= "minecraft:dirt" then
			turtle.digUp()
		end
	end

	function inspectDown()
		success,material = turtle.inspectDown()
		if material.name ~= "minecraft:stone" and material.name ~= "minecraft:dirt" then
			turtle.digDown()
		end
	end

	function drop()
		dZ = pZ
		while pZ ~= 0 do
			if oX == 1 then
				turtle.turnRight()
			elseif oX == -1 then
				turtle.turnLeft()
			end

			if oZ == 1 then
				turnRight()
				turnRight()
			else
				moveForward()
			end
		end

		for i = 2,16 do
			turtle.select(i)
			turtle.dropDown()
		end

		turnRight()
		turnRight()

		while dZ ~= 0 do
			if oX == 1 then
				turtle.turnRight()
			elseif oX == -1 then
				turtle.turnLeft()
			elseif oZ == 1 then
				turnRight()
				turnRight()
			else
				moveForward()
			end
		end
	end

	function moveForward()
		if debug then
			print ("Position : "..pX.." "..pZ.." "..pY)
			print ("Orientation: "..oX.." "..oZ)
		end
		if turtle.forward() then
			if oX == 1 then
				pX = pX + 1
			elseif oX == -1 then
				pX = pX - 1
			elseif oZ == 1 then
				pZ = pZ + 1
			else
				pZ = pZ - 1
			end
		else
			turtle.dig()
			turtle.forward()
			if oX == 1 then
				pX = pX + 1
			elseif oX == -1 then
				pX = pX - 1
			elseif oZ == 1 then
				pZ = pZ + 1
			else
				pZ = pZ - 1
			end
		end
	end

	function moveUp()
		if debug then
			print ("Position : "..pX.." "..pZ.." "..pY)
			print ("Orientation: "..oX.." "..oZ)
		end
		if turtle.up() then
			pY = pY + 1
		else
			turtle.digUp()
			turtle.up()
			pY = pY + 1
		end
	end

	function moveDown()
		if debug then
			print ("Position : "..pX.." "..pZ.." "..pY)
			print ("Orientation: "..oX.." "..oZ)
		end
		if turtle.down() then
			pY = pY - 1
		else
			turtle.digDown()
			turtle.down()
			pY = pY - 1
		end
	end

	function goHome() --Return in X
		dZ = pZ

		while dX ~= 0 do
			if dX > 0 then
				if oX == 1 then
					turnRight()
					turnRight()
				elseif oX == -1 then
					moveForward()
				else
					turnRight()
				end
			else
				if oX == 1 then
					moveForward()
				elseif oX == -1 then
					turnRight()
					turnRight()
				else
					turnLeft()
				end
			end
		end

		while pZ ~= 0 do
			if dX > 0 then
				if oX == 1 then
					turnRight()
					turnRight()
				elseif oX == -1 then
					moveForward()
				else
					turnRight()
				end
			else
				if oX == 1 then
					moveForward()
				elseif oX == -1 then
					turnRight()
					turnRight()
				else
					turnLeft()
				end
			end
		end


	end

	function shutDown()
		running = false
	end

	function turnRight()
		turtle.turnRight()
		if oX == 1 then
			oX = 0
			oZ = -1
		elseif oX == -1 then
			oX = 0
			oZ = 1
		elseif oZ == 1 then
			oX = 1
			oZ = 0
		else
			oX = -1
			oZ = 0
		end
	end

	function turnLeft()
		turtle.turnLeft()
		if oX == 1 then
			oX = 0
			oZ = 1
		elseif oX == -1 then
			oX = 0
			oZ = -1
		elseif oZ == 1 then
			oX = -1
			oZ = 0
		else
			oX = 1
			oZ = 0
		end
	end

main()