/*
 * Triangle.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_DATA_TRIANGLE_H_
#define ZOOMEDIT_DATA_TRIANGLE_H_

#include "Vertex.h"
#include "TexCoords.h"
#include <libxml++/nodes/element.h>

namespace ZoomEdit {
namespace Data {

class Triangle {
  private:
    xmlpp::Element *triangleNode;
    xmlpp::Element *vertexNodes[3];
    xmlpp::Element *normalNodes[3];
    xmlpp::Element *texCoordsNodes[3];
    
    Vertex vertices[3];
    Vector normals[3];
    TexCoords texCoords[3];
    
    bool visible;
    
    Glib::ustring texture;
    
    Vertex loadVertex(xmlpp::Element *node) const;
    Vector loadVector(xmlpp::Element *node) const;
    TexCoords loadTexCoords(xmlpp::Element *node) const;
    
  public:
    Triangle(xmlpp::Element *node);
    
    const Vertex& getVertex(unsigned int i) const {return vertices[i%3];}
    void setVertex(unsigned int i, Vertex v) {vertices[i%3] = v;}
    void setVertices(Vertex v[3]) {
      vertices[0] = v[0]; vertices[1] = v[1]; vertices[2] = v[2];
    }
    
    const Vector& getNormal(unsigned int i) const {return normals[i%3];}
    void setNormal(unsigned int i, Vector n) {normals[i%3] = n;}
    void setNormals(Vector n[3]) {
      normals[0] = n[0]; normals[1] = n[1]; normals[2] = n[2];
    }
    
    const TexCoords& getTexCoords(unsigned int i) const {return texCoords[i%3];}
    void getTexCoords(unsigned int i, TexCoords t) {texCoords[i%3] = t;}
    void getTexCoords(TexCoords t[3]) {
      texCoords[0] = t[0]; texCoords[1] = t[1]; texCoords[2] = t[2];
    }
    
    bool isVisible() const {return visible;}
    void setVisible(bool vis) {visible = vis;}
};

}
}

#endif /*ZOOMEDIT_DATA_TRIANGLE_H_*/