bwPolygon.h

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#pragma once
 
#include <vector>
 
namespace bWidgets {
 
/* TODO for (2D-)polygons, we should actually use ints, not floats. Prevents precision and rounding
 * errors. */
using bwPointVec = std::vector<class bwPoint>;
 
class bwPolygon {
 public:
  bwPolygon() = default;
  bwPolygon(const bwPolygon& poly) = default;
  bwPolygon(const bwPointVec& vertices);
  explicit bwPolygon(const unsigned int reserve_vertex_count);
 
  void addVertex(class bwPoint vertex);
  void addVertex(const float x, const float y);
  void addVertex(const int x, const int y);
  void reserve(const unsigned int count);
  auto getVertices() const -> const bwPointVec&;
 
  auto operator[](const unsigned int index) -> bwPoint&;
 
  auto isDrawable() const -> bool;
 
 protected:
  bwPointVec vertices{};
  size_t vert_count{0};
};
 
}  // namespace bWidgets