forward declare game

Makefile

@@ -17,8 +17,8 @@ SYSFWPATH = /Library/Frameworks
 INC = -Iglm -Isdl2-gfx
 
 linux :
-	g++ -c $(CFLAGS) $(INC) -D__LINUX__ main.cpp sdl2-gfx/SDL2_gfxPrimitives.c sdl2-gfx/SDL2_rotozoom.c
-	g++ $(LFLAGS) SDL2_gfxPrimitives.o SDL2_rotozoom.o main.o -lSDL2_image -lSDL2_ttf -lGL -o main
+	clang++-7 -c $(CFLAGS) $(INC) -D__LINUX__ main.cpp sdl2-gfx/SDL2_gfxPrimitives.c sdl2-gfx/SDL2_rotozoom.c
+	clang++-7 $(LFLAGS) SDL2_gfxPrimitives.o SDL2_rotozoom.o main.o -lSDL2_image -lSDL2_ttf -lGL -o main
 
 android :
 	if [ ! -d $(BUILDDIR) ]; then mkdir $(BUILDDIR); fi;

main.cpp

@@ -7,6 +7,7 @@
 #include <cstdlib>
 #include <algorithm>
 #include <string>
+#include <filesystem>
 
 #define SDL_MAIN_HANDLED
 #include <SDL.h>
@@ -180,24 +181,58 @@ void set_framerate_indicator(int frame_count, GLuint id)
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 }
 
-struct Sprite
-{
-    std::list frames;
+struct Game;
 
-    Sprite()
+struct Node
+{
+
+    Node *parent = NULL;
+
+    Node() { std::cout << "Default constructing Node..." << std::endl; }
+
+    Node(Node *parent) : parent(parent)
     {
+        std::cout << "Constructing Node with parent " << parent << std::endl;
     }
+
+    Game *get_root()
+    {
+        Node *current = parent;
+        while (current->parent != NULL)
+        {
+            current = current->parent;
+        }
+        return (Game*) (current);
+    }
+
+};
+
+struct Sprite : Node
+{
+
+    SDL_Texture *texture;
+    SDL_Rect rect;
+
+    Sprite(Node *parent) : Node(parent)
+    {
+        std::cout << "Constructing Sprite with parent " << parent << std::endl;
+    }
+
 };
 
 struct Mushroom : Sprite
 {
-    Mushroom() : Sprite()
+
+    Mushroom(Node *parent) : Sprite(parent)
     {
+        std::cout << "Constructing Mushroom with parent " << parent << std::endl;
     }
+
 };
 
-struct Game
+struct Game : Node
 {
+
     SDL_Window *window;
     SDL_Renderer *renderer = NULL;
     SDL_GLContext glcontext = NULL;
@@ -213,9 +248,12 @@ struct Game
     float frame_length = 1000.0 / framerate;
     std::list<SDL_Surface*> frames;
     glm::mat4 projection, view, model = glm::mat4(1.0f), mvp;
-    
+
     Game()
     {
+        Mushroom mushroom(this);
+        Game *root = mushroom.get_root();
+        std::cout << root->sw << std::endl;
         setenv("SDL_VIDEO_X11_LEGACY_FULLSCREEN", "0", true);
         SDL_version version;
         SDL_GetVersion(&version);
@@ -245,7 +283,7 @@ struct Game
         }
         load_gl_context();
     }
-
+    
     void print_sdl_error(std::string message)
     {
         std::cerr << message << " " << SDL_GetError() << std::endl;
@@ -589,9 +627,10 @@ struct Game
 
 };
 
+
 int main(int argc, char *argv[])
 {
-    Game g = Game();
+    Game g;
     g.run();
     g.quit();
     return 0;