Refactor to use objects for terrain/mod creation, added coin modifier

mario/mario.hpp

@@ -4,9 +4,12 @@
 #include "../sdlpp/sdlpp_rectrenderer.hpp"
 #include "mario_visitor.hpp"
 #include "sprites.hpp"
+#include "blocks.hpp"
 
-class Mario : public SDLPP::RectangleRender {
+// TODO change to MarioBlock instead of RectangleRender
+class Mario : public MarioBlock {
 public:
+    Mario(int x, int y, const std::shared_ptr< SDLPP::Renderer > &renderer);
     Mario(const std::shared_ptr< SDLPP::Renderer > &renderer);
     void walkLeft();
     void walkRight();
@@ -15,6 +18,7 @@ public:
     void jump();
     void stopJump();
     virtual void custom_move( int ticks ) override;
+    void visit(SDLPP::Visitor &visitor) override;
 private:
     bool faces_right = true;
     double side_movement = 0.39;
@@ -31,6 +35,7 @@ private:
     const double gravity_add_jumping = jump_movement/32.0;
     const double gravity_add_falling = jump_movement/(64.0/7.0);
     std::shared_ptr<SDLPP::RectColider> top_collision = nullptr;
+    virtual void setWorldTypeSrc(LandType::Value world) override;
 };
 
 #endif