Need to fix NULL Exception Thrown

LearningOpenGL/LearningOpenGL/LearningOpenGL.cpp

@@ -6,11 +6,6 @@
 #define MAX_RAY_DEPTH 100
 #define PI 3.1415926535
 
-//vector 3
-
-
-
-
 
 
 

LearningOpenGL/LearningOpenGL/LearningOpenGL.vcxproj

@@ -216,6 +216,7 @@ copy /Y "$(SolutionDir)SDL2_mixer\lib\$(PlatformTarget)\*.dll" "$(OutDir)"</Comm
     <ClCompile Include="src\sdl_proj\SDLGraphics.cpp" />
     <ClCompile Include="src\sdl_proj\Texture.cpp" />
     <ClCompile Include="src\sdl_proj\Timer.cpp" />
+    <ClCompile Include="src\StartScreen.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\opengl\GLTexture.h" />
@@ -255,6 +256,7 @@ copy /Y "$(SolutionDir)SDL2_mixer\lib\$(PlatformTarget)\*.dll" "$(OutDir)"</Comm
     <ClInclude Include="include\sdl_proj\Timer.h" />
     <ClInclude Include="include\sdl_proj\tinyxml\tinyxml2.h" />
     <ClInclude Include="include\opengl\ShaderUtil.h" />
+    <ClInclude Include="include\Tetris\StartScreen.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

LearningOpenGL/LearningOpenGL/LearningOpenGL.vcxproj.filters

@@ -114,6 +114,9 @@
     <ClCompile Include="src\opengl\ShaderUtil.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="src\StartScreen.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\opengl\GLGraphics.h">
@@ -227,5 +230,8 @@
     <ClInclude Include="include\opengl\ShaderUtil.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="include\Tetris\StartScreen.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>

LearningOpenGL/LearningOpenGL/include/Tetris/StartScreen.h

@@ -0,0 +1,24 @@
+#pragma once
+#include "GLTexture.h"
+#include "GameEntity.h"
+
+using namespace FOGrP;
+
+class StartScreen : public GameEntity
+{
+private:
+
+
+
+    GLTexture* mStartButton;
+    GLTexture* mTetrisLogo;
+
+
+public:
+    StartScreen();
+    ~StartScreen();
+
+
+    void Update() override;
+    void Render() override;
+};

LearningOpenGL/LearningOpenGL/include/sdl_proj/Graphics.h

@@ -18,7 +18,7 @@ namespace FOGrP
 
 		static const short SCREEN_WIDTH = 1024;
 		static const short SCREEN_HEIGHT = 896;
-		const char* WINDOW_TITLE = "Galaga";
+		const char* WINDOW_TITLE = "Main Menu";
 
 	protected:
 		static Graphics* sInstance;

LearningOpenGL/LearningOpenGL/include/sdl_proj/managers/GameManager.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <GLGraphics.h> 
+#include "Tetris/StartScreen.h"
 #include <Timer.h>
 #include <GameEntity.h>
 #include <managers/AssetManager.h>
@@ -22,6 +23,7 @@ namespace FOGrP
 
         // modules 
         Graphics* mGraphics;
+        StartScreen* mStartScreen;
         AssetManager* mAssetManager;
         InputManager* mInputManager;
         AudioManager* mAudioManager;

LearningOpenGL/LearningOpenGL/src/StartScreen.cpp

@@ -0,0 +1,40 @@
+#include "Tetris/StartScreen.h"
+
+
+StartScreen::StartScreen()
+{
+
+
+    mStartButton = new GLTexture("Start", "emulogic.ttf", 32, { 200, 0, 0 });
+    mTetrisLogo = new GLTexture("Tetris.png");
+
+}
+
+StartScreen::~StartScreen()
+{
+
+    delete mStartButton;
+    mStartButton = nullptr;
+
+    // logo entities 
+    delete mTetrisLogo;
+    mTetrisLogo = nullptr;
+
+
+}
+
+void StartScreen::Update()
+{
+
+}
+
+void StartScreen::Render()
+{
+
+
+    mStartButton->Render();
+
+    mTetrisLogo->Render();
+
+
+}

LearningOpenGL/LearningOpenGL/src/sdl_proj/managers/GameManager.cpp

@@ -52,7 +52,7 @@ namespace FOGrP
     void GameManager::Update()
     {
         mInputManager->Update();
-
+        mStartScreen->Update();
 
         if (mInputManager->KeyDown(SDL_SCANCODE_1))
         {
@@ -73,6 +73,7 @@ namespace FOGrP
 
 
         mGraphics->Render();
+        mStartScreen->Render();
     }
 
     void GameManager::TestStuff()
@@ -84,6 +85,7 @@ namespace FOGrP
         // create Graphics singleton 
         mEvent = {};
 
+        mStartScreen = new StartScreen();
         Graphics::SetMode(Graphics::RenderMode::GL);
         mGraphics = Graphics::Instance();