added finding path with A* and json file to know where character can walk

src/Game.h

@@ -22,6 +22,7 @@
 #include "ScriptEngine.h"
 #include <unordered_map>
 #include "dialogue/DialogueSystem.h"
+#include "navigation/PathFinder.h"
 #include <unordered_set>
 
 namespace ZL {
@@ -40,6 +41,7 @@ namespace ZL {
 		bool requestDialogueStart(const std::string& dialogueId);
 		void setDialogueFlag(const std::string& flag, int value);
 		int getDialogueFlag(const std::string& flag) const;
+		bool setNavigationAreaAvailable(const std::string& areaName, bool available);
 
 		Renderer renderer;
 		TaskManager taskManager;
@@ -84,6 +86,7 @@ namespace ZL {
 		// Public access for ScriptEngine
 		MenuManager menuManager;
 		ScriptEngine scriptEngine;
+		PathFinder navigation;
 
 	private:
 		bool rightMouseDown = false;
@@ -98,6 +101,7 @@ namespace ZL {
 		void drawUI();
 		void drawGame();
 		void drawLoading();
+		void setupNavigation();
 		void handleDown(int64_t fingerId, int mx, int my);
 		void handleUp(int64_t fingerId, int mx, int my);
 		void handleMotion(int64_t fingerId, int mx, int my);
@@ -124,4 +128,4 @@ namespace ZL {
 	};
 
 
-} // namespace ZL
+} // namespace ZL