polygon.hpp

/*
    2D polygon collider.
    Copyright (C) 2015 Denis BOURGE

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
    USA
*/

#ifndef HX3D_PHYSICS_2D_COLLIDERS_POLYGON
#define HX3D_PHYSICS_2D_COLLIDERS_POLYGON

#include "hx3d/physics/2d/collider.hpp"

#include <vector>

namespace hx3d {
namespace physics2d {
namespace colliders {

struct Polygon: public Collider {

  Polygon(const Type colliderType = Type::Dynamic);

  void setPoints(const std::vector<glm::vec2>& points);

  void setAsBox(const float width, const float height);

  glm::vec2 getSupport(glm::vec2 dir);

  virtual void setOrientation(float angle) override;
  virtual void computeMass(float density) override;

  unsigned int vertexCount;
  std::vector<glm::vec2> vertices;
  std::vector<glm::vec2> normals;
  glm::mat2 u;
  bool box;
};

} /* colliders */
} /* physics2d */
} /* hx3d */

#endif