local component = require ('component')
local gpu = component.gpu
local pe = require ('event').pull
local W, H = gpu.getResolution()
local bColor, fColor = 0x000000, = 0xffffff
local b_color, f_color = gpu.getBackground(), gpu.getForeground()
local scr = {[1] = '577704fa-54af-4d4b-960d-77ed2c50229a', [2] =  '8f607167-d55e-414d-a01e-996e17e629fb', [3] = '09764fde-13a6-48b4-a321-23bdbda184bf'}

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local tButtons = {
  {
    visible = false, X = W-2, Y = 1, W = 3, H = 3, color = 0xff0000, textColor = 0xffffff, text = 'X',
    action = function()
		gpu.setBackground(b_color)
		gpu.setForeground(f_color)
		gpu.fill(1, 1, W, H, ' ')
		gpu.bind(scr[1])
		os.exit()
	end
  },
  {
    visible = false, X = 35, Y = 3, W = 10, H = 3, color = 0x00ff00, textColor = 0xffffff, text = 'Floor 1',
	action = function()
		gpu.setBackground(b_color)
		gpu.setForeground(f_color)
		gpu.fill(1, 1, W, H, ' ')
	end
  },
    {
    visible = false, X = 35, Y = 8, W = 10, H = 3, color = 0x00ff00, textColor = 0xffffff, text = 'Floor 2',
    action = function()
		gpu.setBackground(b_color)
		gpu.setForeground(f_color)
		gpu.fill(1, 1, W, H, ' ')
	end
  },
 }

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local function drawButton(n)
	gpu.setBackground(tButtons[n].color)
	gpu.setForeground(tButtons[n].textColor)
	gpu.fill(tButtons[n].X, tButtons[n].Y, tButtons[n].W, tButtons[n].H, ' ')
	gpu.set(tButtons[n].X+(tButtons[n].W/2)-(#tButtons[n].text/2), tButtons[n].Y+(tButtons[n].H/2), tButtons[n].text)
end

local function toggleVisible(n)
	if tButtons[n].visible then
		tButtons[n].visible = false
		gpu.setBackground(b_color)
		gpu.fill(tButtons[n].X, tButtons[n].Y, tButtons[n].W, tButtons[n].H, ' ')
	else
		tButtons[n].visible = true
		drawButton(n)
	end
end

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gpu.bind(scr[2])
for i = 1, #tButtons do
	toggleVisible(i)
end

while true do
	local tEvent = {pe('touch')}
	for i = 1, #tButtons do
		if tButtons[i].visible then
			if tEvent[3] >= tButtons[i].X and tEvent[3] <= tButtons[i].X+tButtons[i].W and tEvent[4] >= tButtons[i].Y and tEvent[4] <= tButtons[i].Y+tButtons[i].H then
				tButtons[i].action()
				gpu.bind(scr[i])
				for i = 1, #tButtons do
					tButtons[i].visible = false
					toggleVisible(i)
				end
				break
			end
		end
	end
end