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 --[[
 Version
   0.08 5/3/2015 1:01 AM
 Changelog
   0.01 - Starting Of Rewriting
   0.02 - More Writing
   0.03 - Adding Fuel Code
   0.04 - Small but many program Error fixed
   0.05 - Fully Test
   0.06 - Fixing Minor Bug when add 3 to deep because firstdig had no 3 add to deepcount
   0.07 - Fixing High Error
   0.08 - Adding Red stone Starting and change error to Error since lua has error as function.
 --]]
 
 -- Local Variables
 -- Starting
 local wide = 0
 local wideCount = 0
 local long = 0
 local longCount = 0
 local deep = 0
 local deepCount = 0
 local totalBlocks = 0
 local coalNeeded = 0
 local corrent = n
 -- Inventory This Will Check At Start Code
 local chest = 0
 local fuelCount = 0
 local fuelCount1 = 0
 local noFuelNeed = 0 -- if Config has fuel no need on
 local Error = 0 -- Error Code
 local reCheck = 0 -- Recheck Code
 -- Others
 local totalBlocks = 0
 local totalBlockDone = 0 -- How many Block Mined
 local LSorWS = 0 -- Go Left or Go Right This is for Wide Code
 local ALorAR = 0 -- align left Or align Right
 local processRaw = 0
 local process = 0
 local enderChest = 0 -- TODO
 local blockUp = 0 -- Fixing to Chest Probleem and moving probleem
 local processRaw = 0
 local process = 0
 local starting = 0 -- if 0 normal if 1 then redstone starting.
 local on = 0
 
 -- Checking
 local function check()
     if noFuelNeed == 0 then
         if fuelCount == 0 then
             print("Turtle has no fuel")
             print("Put fuel in Second and Thrid slot")
             Error = 1
         else
             print("Turtle has Fuel")
         end
         if fuelCount1 == 0 then
             print("Turtle has no extra fuel but if is short job it okey")
         end
     end
     if chest == 0 then
         print("No chest in Turtle")
         print("Put chest in 1 slot")
         Error = 1
     else
         print("Turtle has chest")
     end
     if Error == 1 then
         print("Items are missing please try again")
         print("Turtle will recheck in 8 sec")
     end
 end
 
 -- Recheck if user forget something turtle will check after 6 sec
 local function reCheck()
     chest = turtle.getItemCount(1)
     fuelCount = turtle.getItemCount(2)
     fuelCount1 = turtle.getItemCount(3)
     Error = 0
 end
 
 local function chestDump()
     if turtle.getItemCount(16)> 0 then -- If slot 16 in turtle has item slot 4 to 16 will go to chest
     repeat -- The Fix to Gravel Chest Bug. It check if gravel above then it dig till it gone
         turtle.digUp()
         sleep(0.6)
         if turtle.detectUp() then
             turtle.digUp()
             blockUp = 1
         else
             blockUp = 0
         end
     until blockUp == 0
     turtle.select(1)
     turtle.placeUp()
     chest = chest - 1
     for slot = 4, 16 do
         turtle.select(slot)
         sleep(0.6) -- Small fix for slow pc because i had people problem with this
         turtle.dropUp()
     end
     turtle.select(4)
     if Chest == 0 then
         print("Out Of Chest")
         os.shutdown()
     end
     end
 end
 
 -- Refuel
 local function refuel()
     if noFuelNeed == 0 then
         repeat
             if turtle.getFuelLevel() < 160 then
                 if fuelCount > 0 then
                     turtle.select(2)
                     turtle.refuel(1)
                     fuelCount = fuelCount - 1
                 elseif fuelCount1 > 0 then
                     turtle.select(3)
                     turtle.refuel(1)
                     fuelCount1 = fuelCount1 - 1
                 else
                     print("out of fuel")
                     os.shutdown()
                 end
             end
         until turtle.getFuelLevel() >= 160
     end
 end
 
 local function mineLong()
     if turtle.detect() then
         turtle.dig()
     end
     if turtle.forward() then
         longCount = longCount + 1
     else
         repeat
             turtle.dig()
             sleep(0.6)
             if turtle.forward() then
                 blockUp = 0
             else
                 blockUp = 1
             end
         until blockUp == 0
         longCount = longCount + 1
         print(totalBlocks - totalBlockDone)
     end
     if turtle.detectUp() then
         turtle.digUp()
     end
     if turtle.detectDown() then
         turtle.digDown()
     end
     totalBlockDone = totalBlockDone + 3
 end
 
 local function wideMineLeft()
 	turtle.turnLeft()
 	if turtle.detect() then
 		turtle.dig()
 		sleep(0.6) -- Minor bug fix if there is gravel
 	end
 	if turtle.forward() then
 		--notting
 	else
 		repeat
 			turtle.dig()
 			sleep(0.6)
 			if turtle.forward() then
 				blockUp = 0
 			else
 				blockUp = 1
 			end
 		until blockUp == 0
 	end
 	if turtle.detectUp() then
 		turtle.digUp()
 	end
 	if turtle.detectDown() then
 		turtle.digDown()
 	end
 	turtle.turnLeft()
 	LSorWS = 0
 	longCount = 0
 	wideCount = wideCount + 1
 	totalBlockDone = totalBlockDone + 3
 end
 
 local function wideMineRight()
 	turtle.turnRight()
 	if turtle.detect() then
 		turtle.dig()
 		sleep(0.6)
 	end
 	if turtle.forward() then
 		--Notting
 	else
 		repeat
 			turtle.dig()
 			sleep(0.6)
 			if turtle.forward() then
 				blockUp = 0
 			else
 				blockUp = 1
 			end
 		until blockUp == 0
 	end
 	if turtle.detectUp() then
 		turtle.digUp()
 	end
 	if turtle.detectDown() then
 		turtle.digDown()
 	end
 	turtle.turnRight()
 	LSorWS = 1
 	longCount = 0
 	wideCount = wideCount + 1
 	totalBlockDone = totalBlockDone + 3
 end
 
 local function deepMine()
     turtle.digDown()
     turtle.down()
     turtle.digDown()
     turtle.down()
     turtle.digDown()
     turtle.down()
     turtle.digDown()
     turtle.turnRight()
     turtle.turnRight()
     wideCount = 0
     longCount = 0
     deepCount = deepCount + 3
     totalBlockDone = totalBlockDone + 3
 end
 
 local function main()
     repeat --Repeat for each level
     mineLong()
     refuel()
     chestDump()
     if longCount == long then
         if wideCount ~= wide then
             process = totalBlockDone / totalBlocks * 100
             processRaw = totalBlocks - totalBlockDone
             print("How Much Is Done: " .. math.floor(process+0.5) .. " %")
             print("TotalBlocks Still Need To Dig Is " .. processRaw)
             if LSorWS == 0 then
                 wideMineRight()
             else
                 wideMineLeft()
             end
         elseif wideCount >= wide then
                 deepMine()
             end
         end
     until deepCount >= deep
     print("turtle is Done")
 end
 
 local function firstDig()
     turtle.digDown()
     turtle.down()
     turtle.digDown()
     turtle.down()
     turtle.digDown()
     wideCount = 0
     longCount = 0
     totalBlockDone = totalBlockDone + 3
 end
 
 local function powerOn()
 	if starting == 0 then
 		print("Turtle will now start!")
 		firstDig()
 		main()
 	elseif starting == 1 then
 		while true do
 			sleep(0)
 			local event = os.pullEvent()
 		if event == "redstone" then
 			break
 		end
 	end
 	print("Turtle will now start!")
 	firstDig()
 	main()
 	end
 end
 
 local function start()
     print("Welcome To Excavation Turtle Program")
     print("Slot 1: Chest, Slot 2: Fuel, Slot 3: Fuel")
     print("Note: If now put item in then it say Error just wait it fix it self")
     print("How long(Lenght) you want")
     input = io.read()
     long = tonumber(input)
     long = long - 1
     print("How wide(Width) you want")
     input2 = io.read()
     wide = tonumber(input2)
     wide = wide - 1
     print("How Deep(Depth) You Want")
     input3 = io.read()
     deep = tonumber(input3)
     print("Is This Corrent Lenght " .. "Lenght = " .. (long + 1) .. " Width = " .. (wide + 1) .. " Depth = " .. (deep))
     print("Type y Or Y if it is correct and if not then n or N")
     corrent = io.read()
     if corrent == n or N then
         os.reboot()
     end
     print("Okey Program Will Do Calculations")
     totalBlocks = (wide + 1) * (long + 1) * deep -- 1 is add because above it removed for wide and long code
     print("Total amount for block to mine is " .. totalBlocks)
     coalNeeded = totalBlocks / 3 / 80
     print("Total amount for Coal needed is " .. math.floor(coalNeeded+0.5))
     if turtle.getFuelLevel() == "unlimited" then
         print("Your turtle config does need fuel")
         noFuelNeed = 1
     elseif turtle.getFuelLevel() < 160 then
         turtle.select(2)
         turtle.refuel(2)
     end
 	print("Do You Want Redstone as Starting Input")
 	print("Note: It Only Detect Back of Turtle")
 	print("if not then type 0 if yes then type 1")
 	input4 = io.read()
 	starting = tonumber(input4)
     reCheck()
     check()
     if Error == 1 then
         repeat
             sleep(6)
             reCheck()
             check()
         until Error == 0
     end
 	powerOn()
 end
 
 start()