pico8-0hh1/states/menu.lua

function state_menu()
	local selected = 1

	local function on_btn_draw(btn)
		if selected == btn.data.i then
			btn.color = 7
		end
	end

	local buttons = {
		make_button({x=10, y=10, w=30, text="play", data={i=1},
			on_click=function() set_state(states.loading) end,
			on_hover=function(btn) btn.color = 7 selected = 1 end,
			on_draw=on_btn_draw}),
		make_button({x=10, y=20, w=30, text="rules", data={i=2},
			on_click=function() set_state(states.rules) end,
			on_hover=function(btn) btn.color = 7 selected = 2 end,
			on_draw=on_btn_draw})
	}

	local function _enter()

	end

	return {
		_enter = _enter,

		_update = function()
			for button in all(buttons) do
				button:update()
			end

			if btnp(UP) then
				selected -= 1
			elseif btnp(DOWN) then
				selected += 1
			elseif btnp(BTN_O) then
				buttons[selected]:on_click()
			end
			selected = mid(1, selected, #buttons)

		end,

		_draw = function()
			cls()
			for k,button in ipairs(buttons) do
				button:draw(selected == k)
			end
			print("press 🅾️/c to continue", 8, 120, 7)
		end
	}
end