added load npcs from json

src/Character.h

@@ -18,7 +18,10 @@ enum class AnimationState {
 class Character {
 public:
     void loadAnimation(AnimationState state, const std::string& filename, const std::string& zipFile = "");
-    void setTexture(std::shared_ptr<Texture> texture);
+   // void setTexture(std::shared_ptr<Texture> texture);
+    void setTexture(std::shared_ptr<Texture> texture) {
+        this->texture = texture;
+    }
     void update(int64_t deltaMs);
     // onArrived is called once when the character reaches this target.
     // From Python you can chain further commands (walk, wait, trigger others).