/*
 * Triangle2D.h
 * 
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
 * 
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef ZOOMEDIT_MATH_TRIANGLE2D_H_
#define ZOOMEDIT_MATH_TRIANGLE2D_H_

#include <vmmlib/vector.hpp>

namespace ZoomEdit {
namespace Math {

class Triangle2D {
  private:
    vmml::vec2f vertices[3];
    
  public:
    Triangle2D() {}
    
    Triangle2D(const vmml::vec2f &v1, const vmml::vec2f &v2, const vmml::vec2f &v3) {
      vertices[0] = v1;
      vertices[1] = v2;
      vertices[2] = v3;
    }
    
    Triangle2D(const vmml::vec2f *v) {
      setVertices(v);
    }
    
    const vmml::vec2f& getVertex(unsigned int i) const {return vertices[i];}
    void setVertex(unsigned int i, const vmml::vec2f &v) {vertices[i] = v;}
    
    void setVertices(const vmml::vec2f *v) {
      for(int i = 0; i < 3; ++i)
        setVertex(i, v[i]);
    }
    
    float area() const;
    
    bool contains(const vmml::vec2f &v) const;
};

}
}

#endif /*ZOOMEDIT_MATH_TRIANGLE2D_H_*/