turtle_tunnel

-- Turtle Tunnel v2
-- Various improvements
-- TODO: Implement offset.
-- TODO: Implement z-axis.
-- TODO: Implement chest drop off and
--       calculate fuel used.
-- TODO: More updates to screen when running.
-- TODO: Implement different modes (Make stairs,
--       mine for ore, quarry, etc.
-- FIX:  Incorrect percentages
-- FIX:  Odd number of on y axis goes back
--       1 space too far


xoffset = "left"
x = 0
y = 0
z = 0
neededFuel = 0
blockNum = 0
termColorDefault = 1
termColorAlert = 1 -- 16384 Color not supported :c


function Intro()
  term.clear()
  term.setCursorPos(1,1)
  print("From where the turtle is placed, which way do you want it to go?")
  term.setTextColor(termColorAlert)
  print("right/left:")
  term.setTextColor(termColorDefault)
  xoffset = string.lower(io.read())
  while xoffset ~= "right" and xoffset ~= "left" do
    print("You must type 'right' or 'left' without the quotes")
    term.setTextColor(termColorAlert)
    print("right/left:")
    term.setTextColor(termColorDefault)
    xoffset = string.lower(io.read())
  end
  print()
  print("How far to the ",xoffset," will the turtle go?:")
  term.setTextColor(termColorAlert)
  print("Enter number:")
  term.setTextColor(termColorDefault)
  x = tonumber(io.read())
  while not x do
    term.setTextColor(termColorAlert)
    print("You must enter a number:")
    term.setTextColor(termColorDefault)
    x = tonumber(io.read())
  end
  print()
  print("How far forward will the turtle go?:")
  term.setTextColor(termColorAlert)
  print("Enter number:")
  term.setTextColor(termColorDefault)
  y = tonumber(io.read())
  while not y do
    term.setTextColor(termColorAlert)
    print("You must enter a number:")
    term.setTextColor(termColorDefault)
    y = tonumber(io.read())
  end

  print()
  neededFuel = x*y+(y+2)
  -- Checks turtle fuel level
  while turtle.getFuelLevel() < neededFuel do
    term.clear()
    term.setCursorPos(1,1)
    print("Your turtle doesn't have enough fuel to go the specified distance")
    print("Current fuel: ", turtle.getFuelLevel())
    print("Needed fuel: ", neededFuel)
    print("Would you like to add fuel now?")
    print("y/n")
    input = string.lower(io.read())
    while input ~= "y" and input ~= "yes" and input ~= "n" and input ~= "no" do
      print("y/n")
      input = string.lower(io.read())
    end
    if input == "y" or input == "yes" then
      print("Add fuel to turtle inventory, then press enter")
      print("This will consume all fuel in turtle")
      io.read()
      for i = 1, 16 do
        turtle.select(i)
        turtle.refuel()
      end
      turtle.select(1)
    else
      break
    end
  end

  term.clear()
  term.setCursorPos(1,1)
  print("Your turtle will go ",x," blocks to the ",xoffset," and ",y," blocks forward.")
  print("Current fuel: ",turtle.getFuelLevel())
  print("Needed fuel: ",neededFuel)
  print("Is this correct?")
  term.setTextColor(termColorAlert)
  print("y/n:")
  term.setTextColor(termColorDefault)
  input = string.lower(io.read())
  while input ~= "y" and input ~= "yes" and input ~= "n" and input ~= "no" do
    term.setTextColor(termColorAlert)
    print("y/n:")
    term.setTextColor(termColorDefault)
    input = string.lower(io.read())
  end
  if input == "y" or input == "yes" then
--    UpdateScreen(0)
    --Starting to mine!
    MineTunnel()
--    UpdateScreen(y)
  elseif input == "n" or input == "no" then
    print("Try again?")
    term.setTextColor(termColorAlert)
    print("y/n:")
    term.setTextColor(termColorDefault)
    input = string.lower(io.read())
    while input ~= "y" and input ~= "yes" and input ~= "n" and input ~= "no" do
      term.setTextColor(termColorAlert)
      print("y/n")
      term.setTextColor(termColorDefault)
      input = string.lower(io.read())
    end
    if input == "y" or input == "yes" then
      Intro()
    else
      --Closes program
      error()
    end
  end
end

-- Movement loop
function SafeMove(blockNum, mineAround)
  for i = 1, blockNum do
    if mineAround then
     turtle.digUp()
     turtle.digDown()
    end
    while not turtle.forward() do
      if turtle.detect() then
        turtle.dig()
      else
        turtle.attack()
      end
    end
--  UpdateScreen()
    blockNum = blockNum + 1
    UpdateScreen()
  end
end


function MineTunnel()
  while not turtle.up() do
    turtle.digUp()
  end
--  turtle.digUp()
--  turtle.up()
  for i = 1, y/2 do
    SafeMove(1, false)
    turtle.turnLeft()
    turtle.digUp()
    turtle.digDown()
    SafeMove(x-1, true)
    turtle.turnRight()
    turtle.digUp()
    turtle.digDown()
    SafeMove(1, false)
    turtle.turnRight()
    turtle.digUp()
    turtle.digDown()
    SafeMove(x-1, true)
    turtle.turnLeft()
    turtle.digUp()
    turtle.digDown()
    UpdateScreen(i*2)
  end
  turtle.down()
  turtle.turnLeft()
  turtle.turnLeft()
  SafeMove(y, false)
  turtle.turnLeft()
  turtle.turnLeft()
end

function DropItems()
  for i = 1, 16 do
    turtle.select(i)
    turtle.drop()
  end
end

function StairsMode()

end

--function UpdateScreen(percent)
function UpdateScreen()
  term.clear()
  term.setCursorPos(1,1)
  term.setTextColor(termColorAlert)
  print("Turtle Activated")
  term.setTextColor(termColorDefault)
--  print(percent/y*100, "% completed")
  print(blockNum/neededFuel, "% completed")
  print("Fuel Level: ", turtle.getFuelLevel())
end


Intro()
--turtle.forward()
--turtle.forward()
--turtle.forward()
--turtle.forward()
--turtle.forward()
--SafeMove(5)