color keying for sprite sheets and properly keyed texture map params

src/engine/engine.hpp

@@ -9,27 +9,46 @@
 #include <chrono>
 #include "game/game.hpp"
 #include <fmt/format.h>
+#include <toml.hpp>
+#include <functional>
 #include "rendering/renderer.hpp"
 #include "input/inputprocessor.hpp"
-static const std::string MISSING_GAME = "Game pointer is null";
-static const std::string MISSING_RENDERER = "Renderer pointer is null";
-static const bool SHOW_FPS = true;
-static const std::string RESOURCE_DIR = "assets";
+#define MISSING_GAME_ERROR "Game pointer is null"
+#define MISSING_RENDERER_ERROR "Renderer pointer is null"
+#define RESOURCE_DIR "assets"
+#define CONFIG_DIR "config"
+#define DEFAULT_TARGET_FPS 61
+#define DEFAULT_WINDOW_WIDTH 800
+#define DEFAULT_WINDOW_HEIGHT 600
+#define DEFAULT_WINDOW_TITLE "RLEngine"
+#define DEFAULT_SHOW_FPS false
+
 static const TextRenderDetails DEFAULT_FONT = TextRenderDetails(
         "fonts/Consolas-Regular.ttf",
         12,
         COLOR_WHITE
         );
+
+struct EngineConfig {
+    unsigned int target_fps;
+    int window_width;
+    int window_height;
+    bool show_fps;
+    std::string window_title;
+    TextRenderDetails default_font;
+};
+
 class Engine {
 public:
     Engine(std::unique_ptr<Game> game, std::unique_ptr<Renderer> renderer,
            std::unique_ptr<InputProcessor> input_processor);
     void start_loop();
-
+    static void load_config(const std::string& path, const std::function<void (toml::table)>& f);
 
     virtual ~Engine();
 
 private:
+    EngineConfig config;
     std::unique_ptr<Game> game = nullptr;
     std::unique_ptr<Renderer> renderer = nullptr;
     std::unique_ptr<InputProcessor> input_processor = nullptr;