minetest/src/emerge.h

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/*
Minetest
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 EMERGE_HEADER
#define EMERGE_HEADER
#include <map>
#include "irr_v3d.h"
#include "util/container.h"
#include "map.h" // for ManualMapVoxelManipulator
#include "mapgen.h" // for MapgenParams
#define MGPARAMS_SET_MGNAME 1
#define MGPARAMS_SET_SEED 2
#define MGPARAMS_SET_WATER_LEVEL 4
#define MGPARAMS_SET_FLAGS 8
#define BLOCK_EMERGE_ALLOWGEN (1<<0)
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#define EMERGE_DBG_OUT(x) \
{ if (enable_mapgen_debug_info) \
infostream << "EmergeThread: " x << std::endl; }
class EmergeThread;
//class Mapgen;
//struct MapgenFactory;
class Biome;
class BiomeDefManager;
class Decoration;
class Ore;
class INodeDefManager;
class Settings;
struct BlockMakeData {
ManualMapVoxelManipulator *vmanip;
u64 seed;
v3s16 blockpos_min;
v3s16 blockpos_max;
v3s16 blockpos_requested;
UniqueQueue<v3s16> transforming_liquid;
INodeDefManager *nodedef;
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BlockMakeData():
vmanip(NULL),
seed(0),
nodedef(NULL)
{}
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~BlockMakeData() { delete vmanip; }
};
struct BlockEmergeData {
u16 peer_requested;
u8 flags;
};
class EmergeManager {
public:
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INodeDefManager *ndef;
std::map<std::string, MapgenFactory *> mglist;
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std::vector<Mapgen *> mapgen;
std::vector<EmergeThread *> emergethread;
bool threads_active;
//settings
MapgenParams params;
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bool mapgen_debug_info;
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u16 qlimit_total;
u16 qlimit_diskonly;
u16 qlimit_generate;
u32 gennotify;
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//block emerge queue data structures
JMutex queuemutex;
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std::map<v3s16, BlockEmergeData *> blocks_enqueued;
std::map<u16, u16> peer_queue_count;
//Mapgen-related structures
BiomeDefManager *biomedef;
std::vector<Ore *> ores;
std::vector<Decoration *> decorations;
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EmergeManager(IGameDef *gamedef);
~EmergeManager();
void initMapgens();
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Mapgen *getCurrentMapgen();
Mapgen *createMapgen(std::string mgname, int mgid,
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MapgenParams *mgparams);
MapgenSpecificParams *createMapgenParams(std::string mgname);
void startThreads();
void stopThreads();
bool enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate);
void registerMapgen(std::string name, MapgenFactory *mgfactory);
void loadParamsFromSettings(Settings *settings);
void saveParamsToSettings(Settings *settings);
//mapgen helper methods
Biome *getBiomeAtPoint(v3s16 p);
int getGroundLevelAtPoint(v2s16 p);
bool isBlockUnderground(v3s16 blockpos);
u32 getBlockSeed(v3s16 p);
};
#endif