local MenuItem = {
    text = "",
    primary_color = color.new(104, 169, 221), -- Cornflower Blue
    second_color = color.new(46, 147, 249) -- Dodger Blue
}
 
function MenuItem:print(self, x, y, width, height, selected)
    delta_x = 10
    delta_y = screen.textheight()
    if selected then
        draw.fillrect(x, y, delta_x, delta_y + 2, self.second_color)
        draw.gradrect(x + delta_x, y, width, delta_y + 2, self.primary_color, self.primary_color, self.primary_color, self.primary_color)
    else
        draw.fillrect(x, y, delta_x, delta_y + 2, self.second_color)
        draw.gradrect(x + delta_x, y, width, delta_y + 2, self.second_color, self.second_color, self.second_color, self.second_color)
    end
    screen.print(x + delta_x + 5, y + 1, self.text)
end
 
MenuItem.__index = MenuItem
 
setmetatable(MenuItem, {
    __call = function (cls, ...)
        return cls.new(...)
    end,
})
 
function MenuItem.new(text)
  local self = setmetatable({}, MenuItem)
  self.text = text
  return self
end

dofile('modules/menu/menu_item.lua')
 
local Menu = { 
    option = 1,
    on_menu = false,
    options = {
        MenuItem("Play"),
        MenuItem("Multiplayer"),
        MenuItem("Settings"),
        MenuItem("Credits"),
        MenuItem("Quit")
    }
}
 
function Menu:print()
    -- Print background
    if self.on_menu then
        -- Print Menu
        delta = 3
        title_h = screen.textheight(1)
        screen.print(5, 20, "Halo Zero", 1, color.white, color.black, __ACENTER)
        screen.print(5, 20 + title_h + delta, "Firefight", .8, color.white, color.black, __ACENTER)
 
        y = 136
        text_h = screen.textheight(.8)
 
        for i=1, #self.options do
            self.options[i]:print(5, y + text_h, 100, 10, self.option == i)
            y = y + text_h + delta
        end
 
        buttons.read()
        if buttons.down then
            self.option = self.option + 1
            if self.option >= #self.options then
                self.option = #self.options 
            end
        elseif buttons.up then
            self.option = self.option - 1
            if self.option <= 0 then
                self.option = 1
            end
        end
 
        if buttons.cross then
            if self.option == 1 then
                -- Play
            elseif self.option == 2 then
                -- Multiplayer
            elseif self.option == 3 then
                -- Settings
            elseif self.option == 4 then
                -- Credits
            elseif self.option == 5 then
                os.exit()
            end
        end
    else
        -- Print "press start"
        txt_size = 1
        text = "Halo Zero"
        text_position = {
            (480 / 2) - (screen.textwidth())
        }
 
        txt_size = .8
        text = "Press START"
        text_position = {
            (480 / 2) - (screen.textwidth(text, txt_size) / 2), -- X
            272 - (screen.textheight(txt_size) * 2)
        }
 
        screen.print(text_position[1], text_position[2], text, txt_size, color.white)
 
        buttons.read()
        if buttons.start and not self.on_menu then 
            self.on_menu = true
        end
    end
end
 
Menu.__index = Menu
 
setmetatable(Menu, {
    __call = function (cls, ...)
        return cls.new(...)
    end,
})
 
function Menu.new(text)
    local self = setmetatable({}, Menu)
    return self
end