Added main menu and snake game satates (nonfunctional)

GameEngine/MainMenuState.cpp

+#include <iostream>
+#include "MainMenuState.h"
+// #include "TestState2.h"
+// #include "TestState3.h"
+#include "2048GameState.h"
+
+CMainMenuState CMainMenuState::m_MainMenuState;
+
+void CMainMenuState::Init()
+{
+    cout << "  MainMenuState Init" << endl;
+    stateName = "MainMenuState";
+}
+
+void CMainMenuState::Pause()
+{
+    cout << "  MainMenuState Pause" << endl;
+}
+
+void CMainMenuState::Resume()
+{
+    cout << "  MainMenuState Resume" << endl;
+}
+
+void CMainMenuState::Cleanup()
+{
+    cout << "  MainMenuState Cleanup" << endl;
+}
+
+void CMainMenuState::HandleEvents(CGameEngine* game)
+{
+    cout << "  MainMenuState Handle Events" << endl;
+}
+
+void CMainMenuState::Update(CGameEngine* game)
+{
+    cout << "  MainMenuState Update" << endl;
+    
+    game->ChangeState(C2048GameState::Instance());
+}
+
+void CMainMenuState::Draw(CGameEngine* game)
+{
+    cout << "  MainMenuState Draw" << endl;
+}
+

GameEngine/MainMenuState.h

+#ifndef MAINMENU_H
+#define MAINMENU_H
+
+#include "GameState.h"
+#include <iostream>
+
+class CMainMenuState : public CGameState
+{
+    public:
+        void Init();
+        void Cleanup();
+        
+        void Pause();
+        void Resume();
+        
+        void HandleEvents(CGameEngine* game);
+        void Update(CGameEngine* game);
+        void Draw(CGameEngine* game);
+        
+        static CMainMenuState* Instance() { return &m_MainMenuState; }
+        
+    protected:
+        CMainMenuState() {}
+    
+    private:
+        static CMainMenuState m_MainMenuState;
+        int runtimes = 0;
+};
+
+#endif
\ No newline at end of file

GameEngine/SnakeState.cpp

+#include <iostream>
+#include "SnakeState.h"
+// #include "TestState2.h"
+// #include "TestState3.h"
+#include "2048GameState.h"
+
+CSnakeState CSnakeState::m_SnakeState;
+
+void CSnakeState::Init()
+{
+    cout << "  SnakeState Init" << endl;
+    stateName = "SnakeState";
+}
+
+void CSnakeState::Pause()
+{
+    cout << "  SnakeState Pause" << endl;
+}
+
+void CSnakeState::Resume()
+{
+    cout << "  SnakeState Resume" << endl;
+}
+
+void CSnakeState::Cleanup()
+{
+    cout << "  SnakeState Cleanup" << endl;
+}
+
+void CSnakeState::HandleEvents(CGameEngine* game)
+{
+    cout << "  SnakeState Handle Events" << endl;
+}
+
+void CSnakeState::Update(CGameEngine* game)
+{
+    cout << "  SnakeState Update" << endl;
+    
+    game->ChangeState(C2048GameState::Instance());
+}
+
+void CSnakeState::Draw(CGameEngine* game)
+{
+    cout << "  SnakeState Draw" << endl;
+}
+

GameEngine/SnakeState.h

+#ifndef SNAKESTATE_H
+#define SNAKESTATE_H
+
+#include "GameState.h"
+#include <iostream>
+
+class CSnakeState : public CGameState
+{
+    public:
+        void Init();
+        void Cleanup();
+        
+        void Pause();
+        void Resume();
+        
+        void HandleEvents(CGameEngine* game);
+        void Update(CGameEngine* game);
+        void Draw(CGameEngine* game);
+        
+        static CSnakeState* Instance() { return &m_SnakeState; }
+        
+    protected:
+        CSnakeState() {}
+    
+    private:
+        static CSnakeState m_SnakeState;
+};
+
+#endif
\ No newline at end of file