function keyPressed(key)
	if key == "space" then
		local bullet = Bullet(UserPlayer1.x + UserPlayer1.width / 2, UserPlayer1.y, 1, "bullet.png", 500)
		table.insert(Bullets1, bullet)
	elseif key == "return" then
		local bullet = Bullet(UserPlayer2.x + UserPlayer2.width / 2, UserPlayer2.y, 2, "bullet.png", 500)
		table.insert(Bullets2, bullet)
	elseif key == "escape" then
		love.event.quit()
	elseif key == "r" then
		love.load()
	end
end