minetest/src/voxelalgorithms.h
Dániel Juhász be39f61359 Use node lighting for liquid spreading
This commit modifies the liquid transforming procedure to light and
unlight nodes instead of whole map blocks.
2016-10-27 08:04:42 +02:00

80 lines
2.2 KiB
C++

/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program 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 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef VOXELALGORITHMS_HEADER
#define VOXELALGORITHMS_HEADER
#include "voxel.h"
#include "mapnode.h"
#include <set>
#include <map>
class Map;
class MapBlock;
namespace voxalgo
{
// TODO: Move unspreadLight and spreadLight from VoxelManipulator to here
void setLight(VoxelManipulator &v, VoxelArea a, u8 light,
INodeDefManager *ndef);
void clearLightAndCollectSources(VoxelManipulator &v, VoxelArea a,
enum LightBank bank, INodeDefManager *ndef,
std::set<v3s16> & light_sources,
std::map<v3s16, u8> & unlight_from);
struct SunlightPropagateResult
{
bool bottom_sunlight_valid;
SunlightPropagateResult(bool bottom_sunlight_valid_):
bottom_sunlight_valid(bottom_sunlight_valid_)
{}
};
SunlightPropagateResult propagateSunlight(VoxelManipulator &v, VoxelArea a,
bool inexistent_top_provides_sunlight,
std::set<v3s16> & light_sources,
INodeDefManager *ndef);
/*!
* Updates the lighting on the map.
* The result will be correct only if
* no nodes were changed except the given ones.
* Before calling this procedure make sure that all new nodes on
* the map have zero light level!
*
* \param oldnodes contains the MapNodes that were replaced by the new
* MapNodes and their positions
* \param modified_blocks output, contains all map blocks that
* the function modified
*/
void update_lighting_nodes(
Map *map,
INodeDefManager *ndef,
std::vector<std::pair<v3s16, MapNode> > &oldnodes,
std::map<v3s16, MapBlock*> &modified_blocks);
} // namespace voxalgo
#endif