/*
Copyright (C) 1999-2007 id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.

This file is part of GtkRadiant.

GtkRadiant 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 2 of the License, or
(at your option) any later version.

GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#include <stdlib.h>

#include "entity_entitymodel.h"

void Entity_UpdateClass(entity_t *e, const char* value)
{
  if(strcmp(value, "misc_model") == 0
    || (strcmp(value, "misc_gamemodel") == 0)
    || (strcmp(value, "model_static") == 0))
  {
    if (e->model.pRender) e->model.pRender->DecRef();
    if (e->model.pSelect) e->model.pSelect->DecRef();
    if (e->model.pEdit) e->model.pEdit->DecRef();
    e->model.pRender = NULL;
    e->model.pSelect = NULL;
    e->model.pEdit = NULL;

    CEntityMiscModel *model = new CEntityMiscModel(e);
  
    e->model.pRender = (IRender*)model;
    e->model.pRender->IncRef();
    e->model.pSelect = (ISelect*)model;
    e->model.pSelect->IncRef();
    e->model.pEdit = (IEdit*)model;
    e->model.pEdit->IncRef();

    model->DecRef();
  }
  else if(e->eclass && e->eclass->modelpath)
  {
    if (e->model.pRender) e->model.pRender->DecRef();
    if (e->model.pSelect) e->model.pSelect->DecRef();
    if (e->model.pEdit) e->model.pEdit->DecRef();
    e->model.pRender = NULL;
    e->model.pSelect = NULL;
    e->model.pEdit = NULL;
    
    CEntityEclassModel *model = new CEntityEclassModel;

    model->SetEclass(e->eclass);
    model->SetName(e->eclass->modelpath);

    e->model.pRender = (IRender*)model;
    e->model.pRender->IncRef();
    e->model.pSelect = (ISelect*)model;
    e->model.pSelect->IncRef();
    e->model.pEdit = (IEdit*)model;
    e->model.pEdit->IncRef();

    model->DecRef();        
  }
}

void pivot_draw(const vec3_t pivot)
{
  vec3_t vCenter, vMin, vMax;
  VectorCopy(pivot, vCenter);

  g_QglTable.m_pfn_qglPointSize(4);

  g_QglTable.m_pfn_qglBegin(GL_POINTS);
  g_QglTable.m_pfn_qglVertex3fv(vCenter);
  g_QglTable.m_pfn_qglEnd();

  g_QglTable.m_pfn_qglBegin(GL_LINES);
  vCenter[0] -= 8;
  g_QglTable.m_pfn_qglVertex3fv(vCenter);
  vCenter[0] += 16;
  g_QglTable.m_pfn_qglVertex3fv(vCenter);
  vCenter[0] -= 8;
  vCenter[1] -= 8;
  g_QglTable.m_pfn_qglVertex3fv(vCenter);
  vCenter[1] += 16;
  g_QglTable.m_pfn_qglVertex3fv(vCenter);
  vCenter[1] -= 8;
  vCenter[2] -= 8;
  g_QglTable.m_pfn_qglVertex3fv(vCenter);
  vCenter[2] += 16;
  g_QglTable.m_pfn_qglVertex3fv(vCenter);
  vCenter[2] -= 8;
  g_QglTable.m_pfn_qglEnd();

  VectorCopy(vCenter, vMin);
  VectorCopy(vCenter, vMax);
  vMin[0] -= 4;
  vMin[1] -= 4;
  vMin[2] -= 4;
  vMax[0] += 4;
  vMax[1] += 4;
  vMax[2] += 4;

  g_QglTable.m_pfn_qglBegin(GL_LINE_LOOP);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMin[1],vMin[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMin[1],vMin[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMax[1],vMin[2]);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMax[1],vMin[2]);
  g_QglTable.m_pfn_qglEnd();
	
  g_QglTable.m_pfn_qglBegin(GL_LINE_LOOP);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMin[1],vMax[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMin[1],vMax[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMax[1],vMax[2]);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMax[1],vMax[2]);
  g_QglTable.m_pfn_qglEnd();
  
  g_QglTable.m_pfn_qglBegin(GL_LINES);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMin[1],vMin[2]);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMin[1],vMax[2]);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMax[1],vMax[2]);
  g_QglTable.m_pfn_qglVertex3f(vMin[0],vMax[1],vMin[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMin[1],vMin[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMin[1],vMax[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMax[1],vMax[2]);
  g_QglTable.m_pfn_qglVertex3f(vMax[0],vMax[1],vMin[2]);
  g_QglTable.m_pfn_qglEnd();
}