--Dice in Computercraft
--TheCountChuckula

function clear()
  term.clear()
  term.setCursorPos(1,1)
end

function coin()
for r = 1, 10 do
      effect = math.random(2)
      m.clear()
      m.setTextScale(3)
      if effect = 1 then
        m.setCursorPos(1,1)
        m.write("HEAD")
        sleep(.05)
      else
        m.setCursorPos(1,2)
        m.write("TAIL")
        sleep(.05)
      end
    flip = math.random(2)
    m.setTextScale(2)
    m.setCursorPos(1,1)
    m.clear()
    if flip == 1 then
      m.setCursorPos(1,1)
      m.write("HEAD")
    else
      m.setCursorPos(1,2)
      m.write("TAIL")
    end
  end

function roll()
    for r = 1, 5 do
      for x = 1, 2 do
        effect = math.random(dienum)
        m.setCursorPos(1,x)
        m.clear()
        m.setTextScale(3)
        if effect < 10 then
          m.write("0")
          m.write(effect)
        else
          m.write(effect)
        end
        sleep(.05)
      end
    end
    rint = math.random(dienum)
    m.setCursorPos(1,1)
    m.clear()
    m.setTextScale(3)
    if rint < 10 then
      m.write("0")
      m.write(rint)
    elseif rint == 100 then
      m.setTextScale(2)
      m.write(rint)
      m.setTextScale(3)
    else
      m.write(rint)
    end
    m.setCursorPos(1,2)
    m.write("^^")
  end

math.randomseed(os.time())
m = peripheral.wrap("back")
dienum = 0
while true do
  clear()
  print("Hello, Welcome to DICE!")
  print("-------------------------------------")
  print("Please select your die for this roll.")
  print("-------------------------------------")
  print("a. Flip a Coin")
  print("b. 4-Sided")
  print("c. 6-Sided")
  print("d. 8-Sided")
  print("e. 10-Sided")
  print("f. 20-Sided")
  print("g. 100-Sided")
  print("-------------------------------------")

  local event, select = os.pullEvent("char")
  if select == "a" then
    coin()
  elseif select == "b" then
    dienum = 4
    roll()
  elseif select == "c" then
    dienum = 6
    roll()
  elseif select == "d" then
    dienum = 8
    roll()
  elseif select == "e" then
    dienum = 10
    roll()
  elseif select == "f" then
    dienum = 20
    roll()
  elseif select == "g" then
    dienum = 100
    roll()
  else
    shell.run("dice")
  end
end