fix tiles not rendering bug

src/engine.cpp

@@ -36,11 +36,11 @@ Engine::Engine(Window &window) : window(window), quit(false) {
 
 void Engine::set_scene(Scene &scene) { this->scene = &scene; }
 
-void Engine::set_spritesheet(Spritesheet spritesheet) {
-  this->spritesheet = spritesheet;
+void Engine::set_spritesheet(Spritesheet &spritesheet) {
+  this->spritesheet = &spritesheet;
 }
 
-Spritesheet &Engine::get_spritesheet() { return spritesheet.value(); }
+Spritesheet *Engine::get_spritesheet() { return spritesheet.value(); }
 
 void Engine::pump() {
   SDL_Event e;

src/engine.hpp

@@ -26,9 +26,9 @@ public:
 
   void set_scene(Scene &scene);
 
-  void set_spritesheet(Spritesheet spritesheet);
+  void set_spritesheet(Spritesheet &spritesheet);
 
-  Spritesheet &get_spritesheet();
+  Spritesheet *get_spritesheet();
 
   void render();
 
@@ -40,7 +40,7 @@ private:
   Window &window;
   SDL_Renderer *sdl_renderer;
   std::optional<Scene *> scene;
-  std::optional<Spritesheet> spritesheet;
+  std::optional<Spritesheet *> spritesheet;
   std::vector<SDL_Event> events;
   bool quit;
 };

src/level.cpp

@@ -29,15 +29,15 @@ void Level::render(Engine &engine, std::vector<SDL_Event> &events) {
 
   for (int y = 0; y < this->height; y++) {
     for (int x = 0; x < this->width; x++) {
-      Spritesheet &spritesheet = engine.get_spritesheet();
+      Spritesheet *spritesheet = engine.get_spritesheet();
 
       SDL_Rect dst;
-      dst.x = x * spritesheet.get_tile_width();
-      dst.y = y * spritesheet.get_tile_height();
-      dst.w = spritesheet.get_tile_width();
-      dst.h = spritesheet.get_tile_height();
+      dst.x = x * spritesheet->get_tile_width();
+      dst.y = y * spritesheet->get_tile_height();
+      dst.w = spritesheet->get_tile_width();
+      dst.h = spritesheet->get_tile_height();
 
-      if (spritesheet.render_tile(engine.renderer(), 0, 0, &dst) == 0) {
+      if (spritesheet->render_tile(engine.renderer(), 0, 0, &dst) != 0) {
         throw std::runtime_error("error while rendering a tile: " +
                                  std::string(SDL_GetError()));
       }

src/spritesheet.cpp

 #include "spritesheet.hpp"
 #include "SDL_render.h"
-#include "SDL_stdinc.h"
 #include "SDL_surface.h"
 #include "engine.hpp"
 
 #include <SDL_image.h>
-#include <iostream>
-#include <ostream>
 #include <stdexcept>
 
 namespace advanced_wars {
@@ -52,18 +49,10 @@ int Spritesheet::render_tile(SDL_Renderer *renderer, int tile, int step,
   src.w = tile_width;
   src.h = tile_height;
 
+  /*
      std::cout << rect->x << " " << rect->y << " " << rect->w << " " << rect->h
               << std::endl;
-
-  Uint32 format = 0;
-  int width = 0;
-  int height = 0;
-  int access = 0;
-
-  SDL_QueryTexture(texture, &format, &access, &width, &height);
-
-  std::cout << format << " " << width << " " << height << " " << access
-            << std::endl;
+    */
 
   return SDL_RenderCopyEx(renderer, texture, &src, rect, 0, NULL,
                           SDL_FLIP_NONE);

src/spritesheet.hpp

@@ -16,6 +16,10 @@ public:
 
   ~Spritesheet();
 
+  Spritesheet(const Spritesheet &) = delete;
+
+  Spritesheet &operator=(const Spritesheet &) = delete;
+
   // Tiles
   int get_tile_steps(int tile);