/*
BobToolz plugin for GtkRadiant
Copyright (C) 2001 Gordon Biggans

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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

// DMap.cpp: implementation of the DMap class.
//
//////////////////////////////////////////////////////////////////////

#include "DMap.h"

#include "str.h"
#include <list>

#include "DPoint.h"
#include "DPlane.h"
#include "DBrush.h"
#include "DEPair.h"
#include "DPatch.h"
#include "DEntity.h"

#include "iundo.h"

#include "generic/referencecounted.h"

#include <vector>
#include <list>
#include <map>
#include <algorithm>

#include "scenelib.h"


//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

DMap::DMap()
{
	m_nNextEntity = 1;
	AddEntity("worldspawn", 0);
}

DMap::~DMap()
{
	ClearEntities();
}

DEntity* DMap::AddEntity(char *classname, int ID)
{
	DEntity* newEntity;
	if(ID == -1)
		newEntity = new DEntity(classname, m_nNextEntity++);
	else
		newEntity = new DEntity(classname, ID);

	entityList.push_back(newEntity);
	
	return newEntity;
}

void DMap::ClearEntities()
{
	m_nNextEntity = 1;

	for(std::list<DEntity *>::const_iterator deadEntity=entityList.begin(); deadEntity!=entityList.end(); deadEntity++)
		delete *deadEntity;

	entityList.clear();
}

DEntity* DMap::GetEntityForID(int ID)
{
	DEntity* findEntity = NULL;

	for(std::list<DEntity *>::const_iterator chkEntity=entityList.begin(); chkEntity!=entityList.end(); chkEntity++)
	{
		if((*chkEntity)->m_nID == ID)
		{
			findEntity = (*chkEntity);
			break;
		}
	}

	if(!findEntity)
		findEntity = AddEntity("worldspawn", ID);

	return findEntity;
}


DEntity* DMap::GetWorldSpawn()
{
	return GetEntityForID(0);
}

void DMap::BuildInRadiant(bool bAllowDestruction)
{
	for(std::list<DEntity *>::const_iterator buildEntity=entityList.begin(); buildEntity!=entityList.end(); buildEntity++)
		(*buildEntity)->BuildInRadiant(bAllowDestruction);
}

void DMap::LoadAll(bool bLoadPatches)
{
	ClearEntities();

	GlobalSelectionSystem().setSelectedAll(false);

  class load_entities_t : public scene::Traversable::Walker
  {
    DMap* m_map;
    bool m_bLoadPatches;
  public:
    load_entities_t(DMap* map, bool bLoadPatches)
      : m_map(map), m_bLoadPatches(bLoadPatches)
    {
    }
    bool pre(scene::Node& node) const
    {
      if(Node_isEntity(node))
      {
        DEntity* loadEntity = m_map->AddEntity("", 0);
				loadEntity->LoadFromEntity(node, m_bLoadPatches);
      }
      return false;
    }
  } load_entities(this, bLoadPatches);

  Node_getTraversable(GlobalSceneGraph().root())->traverse(load_entities);
}

int DMap::FixBrushes()
{
	int count = 0;
	for(std::list<DEntity *>::const_iterator fixEntity=entityList.begin(); fixEntity!=entityList.end(); fixEntity++)
	{
		count += (*fixEntity)->FixBrushes();
	}

	return count;
}

void DMap::ResetTextures( const char* textureName, float fScale[2],      float fShift[2],      int rotation, const char* newTextureName, 
                          int bResetTextureName,  int bResetScale[2],  int bResetShift[2],  int bResetRotation)
{
	for(std::list<DEntity *>::const_iterator texEntity=entityList.begin(); texEntity!=entityList.end(); texEntity++)
	{
		if(string_equal_nocase("worldspawn", (*texEntity)->m_Classname))
			(*texEntity)->ResetTextures(textureName,        fScale,       fShift,       rotation, newTextureName, 
                                  bResetTextureName,  bResetScale,  bResetShift,  bResetRotation, true);
		else
		{
			if((*texEntity)->ResetTextures( textureName,        fScale,       fShift,       rotation, newTextureName, 
                                      bResetTextureName,  bResetScale,  bResetShift,  bResetRotation, false))
				RebuildEntity(*texEntity);
		}
	}	
}

void DMap::RebuildEntity(DEntity *ent)
{
	ent->RemoveFromRadiant();
	ent->BuildInRadiant(false);
}