refactored so that the renderer is its own class

1 files changed, 132 insertions, 0 deletions

@@ -0,0 +1,132 @@
+#ifndef RENDERER_H_6A58EC30
+#define RENDERER_H_6A58EC30
+
+#include <SDL.h>
+#include <SDL_image.h>
+#include <stdexcept>
+#include <memory>
+
+class Game;
+
+class sdl_error : public std::logic_error {
+public:
+
+  sdl_error() : std::logic_error(SDL_GetError())
+  {
+  }
+};
+
+class img_error : public std::logic_error {
+public:
+
+  img_error() : std::logic_error(IMG_GetError())
+  {
+  }
+};
+
+class sdl_wrapper {
+public:
+
+  sdl_wrapper()
+  {
+    if (SDL_Init(SDL_INIT_VIDEO) != 0)
+    {
+      sdl_error ex;
+      SDL_Quit();
+
+        throw ex;
+    }
+  }
+
+  ~sdl_wrapper()
+  {
+    SDL_Quit();
+  }
+};
+
+class img_wrapper {
+public:
+
+  img_wrapper()
+  {
+    if (IMG_Init(IMG_INIT_PNG) != IMG_INIT_PNG)
+    {
+      img_error ex;
+      IMG_Quit();
+
+      throw ex;
+    }
+  }
+
+  ~img_wrapper()
+  {
+    IMG_Quit();
+  }
+};
+
+class window_deleter {
+public:
+
+  void operator()(SDL_Window* ptr)
+  {
+    SDL_DestroyWindow(ptr);
+  }
+};
+
+using window_ptr = std::unique_ptr<SDL_Window, window_deleter>;
+
+class renderer_deleter {
+public:
+
+  void operator()(SDL_Renderer* ptr)
+  {
+    SDL_DestroyRenderer(ptr);
+  }
+};
+
+using renderer_ptr = std::unique_ptr<SDL_Renderer, renderer_deleter>;
+
+class surface_deleter {
+public:
+
+  void operator()(SDL_Surface* ptr)
+  {
+    SDL_FreeSurface(ptr);
+  }
+};
+
+using surface_ptr = std::unique_ptr<SDL_Surface, surface_deleter>;
+
+class texture_deleter {
+public:
+
+  void operator()(SDL_Texture* ptr)
+  {
+    SDL_DestroyTexture(ptr);
+  }
+};
+
+using texture_ptr = std::unique_ptr<SDL_Texture, texture_deleter>;
+
+class Renderer {
+public:
+
+  Renderer();
+
+  void render(
+    const Game& game,
+    bool drawDark = true);
+
+private:
+
+  sdl_wrapper sdl_;
+  img_wrapper img_;
+  window_ptr win_;
+  renderer_ptr ren_;
+
+  texture_ptr playerFade_;
+  texture_ptr lampFade_;
+  texture_ptr dustFade_;
+};
+
+#endif /* end of include guard: RENDERER_H_6A58EC30 */