sphinx.lua

function printSphinx(y)
  f = fs.open("sphinxImg.txt", "r")
  c = f.readAll()
  f.close()
  m.clear()
  if y == nil then y = 1 end
  m.setCursorPos(1,y)
  t = term.redirect(m)
  print(c)
  term.redirect(t)
end
--Y = sphinx start y ie. Same as what is passed to printSphinx
function talkAnimation(y)
  if y == nil then y = 1 end
  y = y + 6
  x = 28
  if mouth == "__" then mouth = "<>" else mouth = "__" end
  m.setCursorPos(x,y)
  m.write(mouth)
end
function showQuestion(y, qNum)
  buttons = {}
  if y == nil then y = 1 end
  y = y + 23
  if qNum == nil or qNum == 0 then
    if #questions > 1 then
      qNum = math.random(1,#questions)
    else
      qNum = 1
    end
  end

  m.setCursorPos(1,y)
  t = term.redirect(m)
  print(questions[qNum].question)
  term.redirect(t)
  --print responce buttons
  qType = questions[qNum].type
  if qType == "torf" then
    buttons =
    {
      {y = h, x = midX - 5, text = "true"},
      {y = h, x = midX + 1, text = "false"}
    }
  elseif qType == "multi" or qType == "all" then
    yOff = 0
    if qType == "all" then
      yOff = 2
      table.insert(buttons, {y = h, x = w - 7, text = "Submit"})
    end
    for i=1, #questions[qNum].choices do
      -- print 2 buttons per line
      doShift = false
      if i % 2 == 0 then
        xOff = 1
        doShift = true
      else
        xOff = -1 - #questions[qNum].choices[i]
      end
      table.insert(buttons, {y = h - yOff, x = midX + xOff, text = questions[qNum].choices[i]})
      if doShift then yOff = yOff + 2 end
    end
  --no buttons for this
  --elseif qType == "text" then
  end
  --print the buttons
  m.setBackgroundColor(colors.green)
  for i=1, #buttons do
    m.setCursorPos(buttons[i].x, buttons[i].y)
    m.write(buttons[i].text)
  end
  m.setBackgroundColor(colors.black)
  return qNum
end
function getButtonClicked(x,y)
  for i=1, #buttons do
    if x >= buttons[i].x and x <= buttons[i].x + #buttons[i].text and y == buttons[i].y then
      return buttons[i].text
    end
  end
end
function main()
  printSphinx()
  selectedQuestion = showQuestion()
  print("Question #" .. selectedQuestion)
  gotAnswer = false
  clickedButton = nil
  --wait for an answer
  while gotAnswer == false do
    -- start a timer for animation breaks
    timer = os.startTimer(1)
    while true do
      --wait for an event
      event, p1, p2, p3 = os.pullEvent()
      if event == "monitor_touch" then
        --check if a button was clicked
        clickedButton = getButtonClicked(p2,p3)
        if clickedButton ~= nil then
          gotAnswer = true
          break
        end
      elseif event == "timer" and p1 == timer then
        break
      end
    end
    talkAnimation()
  end
  if clickedButton == questions[selectedQuestion].answer then
    --correct answer
    print("Correct Answer - " .. clickedButton)
  else
    --incorrect answer
    print("Wrong. Given - " .. clickedButton .. "\nProper Answer - " .. questions[selectedQuestion].answer)
  end
end
questions = {
  {
    type = "multi",
    question = "What is the air speed velocity of an unladen swallow? (In meters per second)",
    answer = "11",
    choices = {"1","6","11","15"}
  },
  {
    type = "torf",
    question = "T or F: The planet Earth is tidally locked to the moon. ",
    answer = "true",
  },
  {
    type = "all",
    question = "What timezone(s) does Kansas reside.",
    answer = {"Mountain", "Central"},
    choices = {"Pacific","Mountain","Central", "Eastern"}
  },
}
buttons = {}
m = peripheral.wrap("back")
m.setTextScale(.5)
w,h = m.getSize()
midX = math.floor(w/2)
while true do main() end