--[[
Made by HDGamer14 

alpha 0.2

To Do
- fix gravel/sand probs (this should fix player and monsters also)

- deal with people/monsters when moving 

- feature to leave the diamonds for you to break with fourtan pick
--]]


local dist,dist1,row,row1,torchs,debug,auto_refuel,direction,home_dist,home_distRow,home,miner,torchRow,torchDist
 
debug = false
auto_refuel = false
 
 
function mine()
  turtle.digUp()
  turtle.dig()
  turtle.digDown()  
end
  
function unload()
  turtle.turnRight()
  print ("Unloading items...")
  for n=1,15 do
    turtle.select(n)
    turtle.drop()
  end
  turtle.select(1)
  turtle.turnLeft()
end
 
function go_back()
  print("Resuming mining . . .")
  if home_distRow == 0 then
    turtle.turnLeft()
  else
    for i=1,home_distRow do
      turtle.back()
    end
    turtle.turnLeft()
  end  
  for i=1,home_dist do
   turtle.forward()
  end
  if direction == true then
   else  
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
  end
  turtle.suck()
  turtle.suckDown()
end
 
function fuel()
  if turtle.getFuelLevel() < home then
    print ("Out of fuel!")
      if auto_refuel == true then
        turtle.select(1)
        for f=1,14 do
          turtle.select(f)
          turtle.refuel(2)          
        end
        turtle.select(1)
        if turtle.getFuelLevel() < home then
        go_home()
        fuel_me()
        go_back()
        end
      else
        go_home()
        fuel_me()
        go_back()
      end
  else
  end
end
 
function fuel_me()
  print ("Waiting for fuel . . .")
  turtle.select(1)
  repeat
    turtle.refuel(2)
    sleep(1)
  until turtle.getFuelLevel() > 180
end
 
function go_home()
  if debug == true then
    print("Go_home")
  else

  end
  home_distRow = row - row1
  if direction == true then
    home_dist = dist - dist1
  else
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
    home_dist = dist1
  end
  for i=1,home_dist do
   turtle.back()
  end
  turtle.turnRight()
  if home_distRow == 0 then
    unload()
  else
    for j=1,home_distRow do
      turtle.forward()
    end
    unload()
  end
end
 
function new_row()
  if row1 == 1 then
    turtle.digUp()
    turtle.digDown() 
    print("Finised mineing")
  else  
    if debug == true then
        print("New_row")
        print("Row = "..row1)
    else
    end
    if direction == true then
      turtle.turnLeft()
      mine()
      turtle.forward()
      turtle.turnLeft()
      direction = false
    else
      turtle.turnRight()
      mine()
      turtle.forward()
      turtle.turnRight()
      direction = true
    end
    dist1 = dist
    row1 = row1 - 1
    home = home + 1
    if torchs == true then
      torchDist = 0
      torchRow = torchRow + 1
      if torchRow == 4 then 
        torchRow = 0
      end
    end
  end  
end
 
function cycle()

  if debug == true then
    print ("Cycle")
    print ("Dist befor "..dist1)
    --sleep(0)
  end
  if dist1 == 0 then
    new_row()
  else
  mine()
  dist1 = dist1 - 1
  if direction == true then
    home = home + 1
  else
    home = home - 1
  end
  if torchs == true then    
    if torchRow == 0 then
      torchDist = torchDist + 1
      if torchDist == 5 then
        turtle.select(16)
        turtle.placeDown(1)
        turtle.select(1)
        torchDist = 0
      else
      end  
    end 
  end 
  turtle.forward()
  fuel()
  if turtle.getItemCount(14) > 0
   then
   go_home()
   go_back()
   end
  end
    if debug == true then
      print("TorchRow "..torchRow)
      print("TorchDist "..torchDist)
      print("Dist after "..dist1)
      print("")
  else

  end
end
 
--Get info
 
  shell.run("clear")
  print("How far you you like me to go?")
    dist=read()
  print("How many rows over would you like me to go?")
    row=read()
  print("Would you like me to use torches? (yes/no)")
    torchs=read()
  if torchs == "yes" then
    print("Place torhes in slot 16")
 torchs = true
   else
 torchs = false  
  end
   
  if debug == true then
      print("")
      print ("I'm mineing "..dist.." blocks deep!")
      print ("I'm mineing "..row.." Row(s) over!")
  if torchs == true then
      print ("I will use torches!")
    else
      print ("I will not use torches!")
  end
    end
 
sleep (5)
dist1 = dist
row1 = row
home = 5
direction = true
miner = dist * row
miner = miner + row
torchRow = 0
torchDist = 0

-- Start Program
repeat
  cycle()
  miner = miner - 1
until miner == 0
go_home()
turtle.turnRight()
turtle.select(16)
turtle.drop()
turtle.select(1)
print("All Done :D")