terraindecor.h

/*--License:
        Lilith 3D Engine
        Copyright Lee Thomason (Grinning Lizard Software) 2002-2004
        www.grinninglizard.com/lilith

        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 2
        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, write to the Free Software
        Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

        The full text of the license can be found in license.txt
*/

#ifndef LILITH_TERRAIN_DECOR_INCLUDED
#define LILITH_TERRAIN_DECOR_INCLUDED

#include "terrainmesh.h"
#include "../grinliz/glcontainer.h"


#ifdef _MSC_VER
#pragma warning( disable : 4786 )       // Debugger truncating names.
#endif
#include <map>

namespace lilith3d
{
class TreeMesh;
class TreeResource;
class FoliageMesh;


class TerrainDecor : public TerrainListener
{
  public:
        TerrainDecor();
        virtual ~TerrainDecor();

        virtual void TerrainChange( const grinliz::Rectangle2I& vertexBounds ) 
        { 
                Update( vertexBounds ); 
        }


  private:
        void Update( const grinliz::Rectangle2I& vertex );
        void UpdateTrees( const grinliz::Rectangle2I& vertex );
        void UpdateFoliage( const grinliz::Rectangle2I& vertex );
        const TreeResource* ShouldHaveTree( float zBase, int xIndex, int yIndex );
        const StaticResource* ShouldHaveFoliage( int patchX, int patchY );

        // Where the forest is located! Never changes...trees leave of come it 
        // depending on the altitude.
        grinliz::BitArray< lilith3d::VERTEXSIZE, lilith3d::VERTEXSIZE > forest;
        grinliz::BitArray< TerrainMesh::PATCHSIZE, TerrainMesh::PATCHSIZE >   grassLand;

        // Decor is the owner of this memory! Be sure to delete.
        grinliz::MapId< TreeMesh* > meshMap;
        grinliz::MapId< FoliageMesh* > foliageMap;

        grinliz::Random rand;
        TerrainMesh*    tmesh;

        const TreeResource*       trees[MAX_TREE_RESOURCE];
        const StaticResource* foliageResource[MAX_FOLIAGE_RESOURCE];
        int nTrees, nFoliage;
};
};

#endif

---