local long = 10
local larg = 10
local totalBlocks
local totalMoves
local minedblocks = 0
local currentCoal
function start()
	print("Salut, tu veux quelle longueur ?")
	long = read()
	print("Ok et en largeur ?")
	larg = read()
	print("Très bien, je lance ma préparation...")
	checkCoal()
end

function checkCoal()
	totalmoves = math.ceil((2*long+2*larg+long/3)*larg)
	if turtle.getFuelLevel() < math.ceil((2*long+2*larg+long/3)*larg) then
		askCoal(turtle.getFuelLevel())
	end
	checkChests()
end

function askCoal(number)
	print("Il manque ",math.ceil(number/8)," coal !")
	print("Injectez les dans le dernier slot")
	refuel(math.ceil(number/8)+1)
end

function refuel(nbrCoal)
	print("Waiting for coal")
	while true do
		if turtle.refuel(0) and turtle.getItemCount(16) >= nbrCoal then
			turtle.refuel(nbrCoal)
			break
		end
	end
	print("Refueld, next step...")
	checkChests()
end

function checkChests()
	neededChest = math.ceil(((2*long+2*larg+long/3)*larg)/4800)
	print("J'attend mes chests dans l'avant dernier slot ! Il m'en faut : ",neededChest)
	while true do
		data = turtle.getItemDetail(15)
		if data then
			if turtle.getItemCount(15) >= neededChest and data.name == "minecraft:chest" then
				break
			end
		end
	end
	print("J'ai mes chests je continue...")
	contour()
end
function contour()
	for i = long*3, 0, -1 do
if turtle.getItemCount(14) >= 48 then
				emptyMe()
			end
		turtle.dig()
		turtle.forward()
		turtle.digDown()
		turtle.digUp()
	end
	turtle.turnLeft()
	for i = larg*3, 0, -1 do
if turtle.getItemCount(14) >= 48 then
				emptyMe()
			end
		turtle.dig()
		turtle.forward()
		turtle.digDown()
		turtle.digUp()
	end
	turtle.turnLeft()
	for i = long*3, 0, -1 do
if turtle.getItemCount(14) >= 48 then
				emptyMe()
			end
		turtle.dig()
		turtle.forward()
		turtle.digDown()
		turtle.digUp()
	end
turtle.turnLeft()
	for i = larg*3, 0, -1 do
if turtle.getItemCount(14) >= 48 then
				emptyMe()
			end
		turtle.dig()
		turtle.forward()
		turtle.digDown()
		turtle.digUp()
	end
turtle.turnLeft()
mine()
end
function emptyMe()
	turtle.select(15)
	turtle.digDown()
	turtle.placeDown()
	for i = 14,1,-1 do
		turtle.select(i)
		turtle.dropDown()
	end
end

function mine()
	for i = long, 0, -1 do

		for j = larg, 0, -1 do
			if turtle.getItemCount(14) >= 48 then
				emptyMe()
			end
			turtle.dig()
			turtle.forward()
			turtle.digDown()
			turtle.digUp()
		end
		if i%2 == 0 then
			turtle.turnLeft()
		else
			turtle.turnRight()
		end
		turtle.dig()
		turtle.forward()
		turtle.digDown()
		turtle.digUp()
		turtle.dig()
		turtle.forward()
		turtle.digDown()
		turtle.digUp()
		turtle.dig()
		turtle.forward()
		turtle.digDown()
		turtle.digUp()
		if i%2 == 0 then
			turtle.turnLeft()
		else
			turtle.turnRight()
		end
	end
	emptyMe()
end
start()