Source for Lua+Löve game programming tutorial, part 01

main.lua

print("Hello")

kartyak = 8

kartyaFelforditva = {
  [1] = false,
  [2] = false,
  [3] = false,
  [4] = false,
  [5] = false,
  [6] = false,
  [7] = false,
  [8] = false
}

kartyaSzin = {
  [1] = "sarga",
  [2] = "sarga",
  [3] = "kek",
  [4] = "kek",
  [5] = "lila",
  [6] = "lila",
  [7] = "piros",
  [8] = "piros"
}

function shuffle(array)
    -- fisher-yates
    local output = { }
    local random = math.random

    for index = 1, #array do
        local offset = index - 1
        local value = array[index]
        local randomIndex = offset*random()
        local flooredIndex = randomIndex - randomIndex%1

        if flooredIndex == offset then
            output[#output + 1] = value
        else
            output[#output + 1] = output[flooredIndex + 1]
            output[flooredIndex + 1] = value
        end
    end

    return output
end
math.randomseed(os.time()) -- be sure to set randomseed somewhere for better randomness

kartyaSzin = shuffle(kartyaSzin)

function love.mousepressed(egerX, y)
  for i=1,kartyak do
    local xEleje = 10 + i*70
	local xVege = xEleje + 50
	
	if egerX > xEleje and egerX < xVege
	then
		kartyaFelforditva[i] = not kartyaFelforditva[i]
  	end
  end
end

function love.draw()
  love.graphics.setColor(0, 0.5, 0)
  love.graphics.rectangle("fill", 0, 0, 600, 500)
  
  love.graphics.setColor(1.0, 0, 1.0)
  love.graphics.print('Hello World!', 400, 300)
  
  for i=1,kartyak do
    local x = 10 + i*70
	local y = 200
	if kartyaFelforditva[i]
	then
	  if kartyaSzin[i] == "kek" then love.graphics.setColor(0.0, 0.0, 1.0)
	  elseif kartyaSzin[i] == "sarga" then love.graphics.setColor(1.0, 1.0, 0.0)
	  elseif kartyaSzin[i] == "piros" then love.graphics.setColor(1.0, 0.0, 0.0)
	  elseif kartyaSzin[i] == "lila" then love.graphics.setColor(1.0, 0.0, 1.0)
	  else love.graphics.setColor(0.0, 0.0, 0.0)
	  end
	else
	  love.graphics.setColor(1, 1, 1)
	end
	love.graphics.rectangle("fill", x, y, 50, 50)
  end
end