enderC

local cols = {colors.black, colors.gray, colors.lightGray, colors.white, colors.pink, colors.magenta, colors.purple, colors.red, colors.lightBlue, colors.blue, colors.cyan, colors.green, colors.lime, colors.yellow, colors.orange, colors.brown}

local ender = nil
local coord = {}

local mon = peripheral.find("monitor")

function drawColor(color,row)
  local x,y = mon.getCursorPos()

  local function draw()
    mon.setBackgroundColor(color)
    for i=1,3 do
      coord[textutils.serialize({mon.getCursorPos()})] = {color,row}
      mon.write(" ")
    end
    mon.setBackgroundColor(colors.black)
    mon.write(" ")
  end

  draw()
  mon.setCursorPos(x,y+1)
  draw()
  mon.setCursorPos(x,y+2)
  draw()
  mon.setCursorPos(x+4,y)
end

function drawUserInterface()
  mon.setTextScale(0.5)
  mon.clear()
  mon.setCursorPos(1,1)
  coord = {}

  local startX, startY = 4, 2
  local offset = 4

  local function draw(row)
    local _,Y = mon.getCursorPos()
    for n,c in pairs(cols) do
      if n == 9 then mon.setCursorPos(startX,Y+offset) end
      --coord[textutils.serialize({mon.getCursorPos()})] = c
      drawColor(c,row)
    end
  end

  mon.setCursorPos(startX,startY)
  draw(1)
  mon.setCursorPos(startX,startY + 8)
  draw(2)
  mon.setCursorPos(startX,startY + 16)
  draw(3)
end

function getColor(x,y,col1,col2,col3)
  local col = coord[textutils.serialize({x,y})]
  if not col or not col[1] or not col[2] then return col1,col2,col3 end
  if col[2] == 1 then col1 = col[1]
  elseif col[2] == 2 then col2 = col[1]
  elseif col[2] == 3 then col3 = col[1]
  end
  return col1, col2, col3
end

function waitForTouchEvent()
  local event, side, monX, monY = os.pullEvent("monitor_touch")
  ender = peripheral.wrap("right")
  if not ender then ender = peripheral.wrap("front") end
  if not ender then return end
  col1, col2, col3 = getColor(monX,monY,ender.getColors())
  print(col1," ",col2," ",col3)
  ender.setColors(col1,col2,col3)
end

while true do
  drawUserInterface()
  waitForTouchEvent()
  sleep(0.2)
end