MenuScreen.h

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/*
     ██╗  ██╗  █████╗  ████████╗  █████╗  ███╗   ██╗  █████╗ 
     ██║ ██╔╝ ██╔══██╗ ╚══██╔══╝ ██╔══██╗ ████╗  ██║ ██╔══██╗
     █████╔╝  ███████║    ██║    ███████║ ██╔██╗ ██║ ███████║
     ██╔═██╗  ██╔══██║    ██║    ██╔══██║ ██║╚██╗██║ ██╔══██║
     ██║  ██╗ ██║  ██║    ██║    ██║  ██║ ██║ ╚████║ ██║  ██║
     ╚═╝  ╚═╝ ╚═╝  ╚═╝/\  ╚═╝    ╚═╝  ╚═╝ ╚═╝  ╚═══╝ ╚═╝  ╚═╝
   /vvvvvvvvvvvvvvvvvvv \=========================================,
   `^^^^^^^^^^^^^^^^^^^ /---------------------------------------"
        Katana Engine \/ © 2012 - Shuriken Studios LLC
                http://www.shurikenstudios.com
*/
 
#pragma once
 
namespace KatanaEngine
{
    class SpriteBatch;
 
    class MenuScreen : public Screen
    {
 
    public:
 
        MenuScreen();
        virtual ~MenuScreen();
 
        virtual void HandleInput(const InputState& input);
 
        virtual void Update(const GameTime& gameTime);
 
        virtual void Draw(SpriteBatch& spriteBatch);
 
        virtual void SetItemListWrapping(const bool wraps) { m_itemListWraps = wraps; }
 
 
    protected:
 
        virtual void AddMenuItem(MenuItem *pItem);
 
        virtual MenuItem *GetSelectedItem() const { return m_menuItems[m_selectedItemIndex]; }
 
        virtual MenuItem *GetMenuItem(const int itemIndex) const { return m_menuItems[itemIndex]; }
 
        virtual void SetSelectedItem(const int itemIndex) { m_selectedItemIndex = itemIndex; }
 
        virtual void SetDisplayCount(const unsigned int count) { m_displayCount = count; }
 
        virtual int GetDisplayCount() const { return m_displayCount; }
 
        virtual size_t GetCount() const { return m_menuItems.size(); }
 
        virtual int GetDisplayStartIndex() const { return m_displayStartIndex; }
 
 
    private:
 
        std::vector<MenuItem *> m_menuItems;
 
        unsigned int m_selectedItemIndex = 0;
 
        unsigned int m_displayCount = 0;
 
        unsigned int m_displayStartIndex = 0;
 
        bool m_itemListWraps = false;
 
    };
}