SDLPP: rectcolider now has min height/width property

sdlpp/sdlpp_rectcolider.hpp

@@ -32,6 +32,8 @@ public:
     virtual void render( Renderer &renderer ) override;
     virtual std::shared_ptr< CollisionPolygon > copySelf() override;
     virtual std::vector< Line< int > > getLines() const override;
+    void setMinWidth( int width );
+    void setMinHeight( int height );
 
 private:
     SDL_Rect getRect();
@@ -43,6 +45,7 @@ private:
 
     Vec2D< double > _size;
     Vec2D< int > _size_pixel;
+    Vec2D< int > min_size = {0, 0};
 };
 } // end of namespace SDLPP
 #endif