paint opencomputer

local event = require("event")
local component = require("component")
local colors = require("colors")
local gpu = component.gpu
local resolutionx , resolutionyp = gpu.getResolution()
local resolutiony = resolutionyp
local a = ""
local bouton = 73

function top()
  gpu.setBackground(colors.blue,true)
  while resolutiony > resolutionyp - 3 do
    while resolutionx > 0 do
      a = a .. " "
      resolutionx = resolutionx -1
    end
    resolutionx = gpu.getResolution()
    print(a)
    a = ""
    resolutiony = resolutiony - 1
  end
  resolutionx = gpu.getResolution()
end

function main()
  while resolutiony > 0 do
    gpu.setBackground(colors.yellow,true)
    while resolutionx > 0 do
      a = a .. " "
      resolutionx = resolutionx - 1
    end
    resolutionx = gpu.getResolution()
    print(a)
    a = ""
    resolutiony = resolutiony - 1
  end
end

function couleur()
  local _,_,x,y = event.pull("touch")
  gpu.setBackground(colors.black,true)
  gpu.setForeground(colors.black,true)
  gpu.set(x,y,"X")

end

function palette()
  local _,_,x,y = event.pull("touch")
    if x >= 73 and y >= 24 then
      couleur()
  end
end

function button()
  while bouton < 80 do
    gpu.setBackground(colors.blue,true)
    gpu.setForeground(colors.blue,true)
    gpu.set(bouton,24," ")
    gpu.set(bouton,25," ")
    bouton = bouton +1
    gpu.setForeground(colors.white,true)
    gpu.set(73,24,"Palette")
  end
  bouton = 73
end

while true do
  top()
  main()
  button()
  couleur()
  gpu.setBackground(colors.blue,true)
  gpu.setForeground(colors.white,true)
  gpu.set(2,2,"Bienvenue dans le paint de willem")
--  palette()

end