Mario: check before bouncing

mario/mario_visitor.hpp

@@ -80,4 +80,31 @@ private:
     SDLPP::Vec2D<double> movement_blockage;
 };
 
+class BounceVisitor : public SDLPP::Visitor {
+public:
+    BounceVisitor() {}
+    virtual void visit( const SDLPP::RenderObject &obj ) override;
+    virtual void setFromId( uint64_t id ) override {
+        from = id;
+    }
+    virtual uint64_t getFromId() override {
+        return from;
+    }
+    virtual void setVisitorType( uint64_t type ) override {
+        _type = type;
+    }
+    virtual uint64_t getVisitorType() override {
+        return _type;
+    }
+
+    bool canBounce() {
+        return hits <= 2;
+    }
+
+private:
+    int hits = 0;
+    uint64_t from;
+    uint64_t _type;
+};
+
 #endif