paint.lua

local EU = require("ExtraUtilits")
local gpu = require("component").gpu
local unicode = require("unicode")
local computer = require("computer")
local term = require("term")

local close = false

local field = {}

local debugMode = false

local w, h = gpu.getResolution()

local width = 32
local height = 16

local x, y = math.floor(w / 2 - width / 2), math.floor(h / 2 - height / 2)

backgroundSymbol = unicode.char(9618)

local background = 0x00ffff
local foreground = 0xffffff
local symbol = " "

local hotKeys = {
[9] = function() close = true end
}

------------------------------------------------

local function setScale()

  repeat

    width = tonumber(EU.ReadyUtilits.WriteFieldUI(60, 23, "Enter massive width(1 - " .. w .. "):"))

  until width and width > 0 and width <= w

  repeat

    height = tonumber(EU.ReadyUtilits.WriteFieldUI(60, 23, "Enter massive height(1 - " .. h .. ":"))

  until height and height > 0 and height <= h

  x, y = math.floor(160 / 2 - width / 2), math.floor(h / 2 - height / 2)

end

local function clear()

  for i = 1, width do

    field[i] = {}

    for j = 1, height do

      field[i][j] = {}
      field[i][j].symbol = backgroundSymbol
      field[i][j].background = 0x000000

      if j / 2 * 2 ~= j then field[i][j].foreground = 0xffffff else field[i][j].foreground = 0x323232 end

    end

  end

end

local function draw()

  for i = 1, width do

    for j = 1, height do

      if field[i][j].background ~= gpu.getBackground() then gpu.setBackground(field[i][j].background) end

      if field[i][j].foreground ~= gpu.getForeground() then gpu.setForeground(field[i][j].foreground) end

      gpu.set(x + i, y + j, field[i][j].symbol)

    end

  end

end

local function pull()

  while not close do

    local signal = {computer.pullSignal()}

    if signal[1] == "touch" or signal[1] == "drag" then

      local sx, sy = signal[3], signal[4]

      if sx <= x + width and sx > x and sy <= y + height and sy > y then

        field[math.floor(sx - x)][math.floor(sy - y)].background = background
        field[math.floor(sx - x)][math.floor(sy - y)].foreground = foreground
        field[math.floor(sx - x)][math.floor(sy - y)].symbol = symbol

        if gpu.getBackground ~= background then gpu.setBackground(background) end
        if gpu.getForeground ~= foreground then gpu.setForeground(foreground) end
        gpu.set(sx, sy, symbol)

        if debugMode then

          gpu.setBackground(0x161616)
          gpu.fill(1, 1, 10, 6, " ")
          gpu.setForeground(0x00ffff)
          gpu.set(1, 1, "sx: " .. sx)
          gpu.set(1, 2, "sy: " .. sy)
          gpu.set(1, 3, "x: " .. x)
          gpu.set(1, 4, "y: " .. y)
          gpu.set(1, 5, "width: " .. width)
          gpu.set(1, 6, "height: " .. height)

        end

      end

    elseif signal[1] == "key_down" then

      local key = signal[3]
      local char = unicode.char(key)

      for hotKey, func in pairs(hotKeys) do

        if hotKey == key or hotKey == char then

          func()

        end

      end

    end

  end

end

local function menu()

  local buttons = {}

  local function changeBackground()

    background = EU.ReadyUtilits.RGBPalette(65, 23, "", background)
    buttons.close = true

  end

  local function changeForeground()

    foreground = EU.ReadyUtilits.RGBPalette(65, 23, "", foreground)
    buttons.close = true

  end

  local function save()

    EU.save({field = field, width = width, height = height}, EU.ReadyUtilits.WriteFieldUI(60, 23, "Enter path to saving:"))
    buttons.close = true

  end

  local function load()

    local data = EU.load(EU.ReadyUtilits.WriteFieldUI(60, 23, "Enter image path:"))

    field = data.field
    width = data.width
    height = data.height

    buttons.close = true

  end

  local function fill()

    for i = 1, width do

      for j = 1, height do

        field[i][j].background = background
        field[i][j].foreground = foreground
        field[i][j].symbol = symbol

      end

    end

  end

  buttons = {
  {1, 1, 6, 1, background, EU.Color.Invert(background), "back", changeBackground},
  {1, 2, 6, 1, foreground, EU.Color.Invert(foreground), "fore", changeForeground},
  {1, 3, 6, 1, 0x161616, 0x00ffff, "Save", save},
  {1, 4, 6, 1, 0x161616, 0x00ffff, "Load", load},
  {1, 5, 6, 1, 0x161616, 0x00ffff, "Fill", function() fill() draw() buttons.close = true end}
  }

  buttons.eventFunc = function(ev)

    if ev[1] == "key_down" and ev[3] == 9 then buttons.close = true end

  end

  EU.draw(buttons)
  EU.buttonPress(buttons)
  gpu.setBackground(0x323232)
  term.clear()
  draw()

end

hotKeys["c"] = function() clear() draw() end
hotKeys["d"] = function() draw() end
hotKeys["e"] = function() if debugMode then loadfile("/bin/edit.lua")("/paint.lua") loadfile("/paint.lua")() end end
hotKeys["m"] = menu
hotKeys["D"] = function() local text = "[Debug mode]" if debugMode then debugMode = false gpu.setBackground(0x000000) gpu.fill(1, h, w, h, " ") gpu.fill(1, 1, 10, 6, " ") else debugMode = true gpu.setBackground(0x000000) gpu.setForeground(0x00ffff) gpu.set(w/2-string.len(text)/2, h, text)end draw() end
hotKeys["s"] = function() setScale() clear() draw() end

EU.screenBackup(function()

  gpu.setBackground(0x323232)
  term.clear()
  clear()
  draw()
  pull()

end)