GoCraftOS

---- By: Goodle

-- Variables

width,height = term.getSize()

CnWidth = width / 2
CnHeight = height / 2

time = os.time()
formattedTime = textutils.formatTime( time, false)

isMenu = false
isDesktop = false
isStartup = false

-- Functions

startup = function()
  isStartup = true
  term.clear()
  term.setCursorPos(CnWidth-5,height-1)
  term.setTextColour( colours.blue )
  term.write("GoCraftOS by")
  term.setCursorPos(CnWidth-7,height)
  term.write("Goodle Software")
  term.setCursorPos(CnWidth-3,CnHeight-1)
  term.setTextColour( colours.lightBlue )
  term.write("Loading")
  term.setCursorPos(CnWidth-6,CnHeight)
  term.write(";")
  term.setCursorPos(CnWidth+6,CnHeight)
  term.write(";")
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth,CnHeight+1)
  term.write('0%')
  sleep(1)
  paintutils.drawLine(CnWidth-5,CnHeight, CnWidth,CnHeight, colours.green )
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.write("50%")
  sleep(0.5)
  paintutils.drawLine(CnWidth,CnHeight, CnWidth+4,CnHeight, colours.green )
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.clearLine()
  term.write("78%")
  sleep(0.3)
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.clearLine()
  term.write("80%")
  sleep(0.5)
  paintutils.drawLine(CnWidth+4,CnHeight, CnWidth+5,CnHeight, colours.green )
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.clearLine()
  term.write("100%")
  term.setCursorPos(CnWidth-3,CnHeight-1)
  term.clearLine()
  term.setBackgroundColour( colours.black )
  term.write("Welcome!")
  sleep(3)
  isStartup = false
  desktop()
end


desktop = function()

  isDesktop = true
  term.clear()
  pixelsDown = 1
  pixelsDownLimit = height
  -- Desktop drawing

  while pixelsDown ~= height
    do paintutils.drawLine(1,pixelsDown, width,pixelsDown, colours.white )
    pixelsDown = pixelsDown + 1
    end
  paintutils.drawLine(1,height, width,height, colours.blue )
  term.setCursorPos(1,height)
  term.setTextColour( colours.white )
  term.setBackgroundColour( colours.lime )
  term.write(' menu ')

  -- Clock Drawing

  term.setCursorPos(width-6,height)
  term.setTextColour( colours.white )
  term.setBackgroundColour( colours.blue )
  term.write(formattedTime)

  -- Text Input Impeder

  while isDesktop == true do
    term.setBackgroundColour( colours.white )
    term.setCursorPos(1,1)
    term.setTextColour( colours.white )
    read(" ")
    local event, keyPressed = os.pullEvent('key')
    if keyPressed == 15 then
      break
      end
  end
end


drawWindow = function()
  term.clear()
end


drawMenu = function()
  isMenu = true
  local menuPD = 1 -- Menu pixels down
  local menuPDL = height -- Menu pixels down limit
  local menuPUL = height-10 -- Menu pixels up limit
  -- Menu pixels right limit is = 15
  while menuPD < menuPDL do
    paintutils.drawLine(1, menuPUL, 15, menuPUL, colors.blue )
    menuPUL = menuPUL + 1
    menuPD = menuPD + 1
    end
  term.setCursorPos(1,height)
  term.setTextColour( colours.white )
  term.setBackgroundColour( colours.green )
  term.write(" menu ")

  while isMenu == true do
    local event, keyPressed2 = os.pullEvent("key")
    if keyPressed2 == 15 then
      isMenu = false
      desktop()
      break
    end
  end

end
-- Program execution

startup()

drawMenu()

while desktop == true do
  drawMenu()
end