forked from Mirrorlandia_minetest/minetest
170 lines
3.9 KiB
C++
170 lines
3.9 KiB
C++
/*
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Minetest
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Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef EMERGE_HEADER
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#define EMERGE_HEADER
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#include <map>
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#include "irr_v3d.h"
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#include "util/container.h"
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#include "mapgen.h" // for MapgenParams
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#include "map.h"
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#define BLOCK_EMERGE_ALLOW_GEN (1 << 0)
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#define BLOCK_EMERGE_FORCE_QUEUE (1 << 1)
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#define EMERGE_DBG_OUT(x) do { \
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if (enable_mapgen_debug_info) \
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infostream << "EmergeThread: " x << std::endl; \
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} while (0)
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class EmergeThread;
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class INodeDefManager;
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class Settings;
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class BiomeManager;
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class OreManager;
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class DecorationManager;
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class SchematicManager;
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// Structure containing inputs/outputs for chunk generation
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struct BlockMakeData {
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MMVManip *vmanip;
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u64 seed;
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v3s16 blockpos_min;
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v3s16 blockpos_max;
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v3s16 blockpos_requested;
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UniqueQueue<v3s16> transforming_liquid;
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INodeDefManager *nodedef;
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BlockMakeData():
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vmanip(NULL),
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seed(0),
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nodedef(NULL)
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{}
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~BlockMakeData() { delete vmanip; }
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};
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// Result from processing an item on the emerge queue
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enum EmergeAction {
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EMERGE_CANCELLED,
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EMERGE_ERRORED,
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EMERGE_FROM_MEMORY,
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EMERGE_FROM_DISK,
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EMERGE_GENERATED,
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};
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// Callback
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typedef void (*EmergeCompletionCallback)(
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v3s16 blockpos, EmergeAction action, void *param);
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typedef std::vector<
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std::pair<
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EmergeCompletionCallback,
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void *
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>
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> EmergeCallbackList;
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struct BlockEmergeData {
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u16 peer_requested;
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u16 flags;
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EmergeCallbackList callbacks;
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};
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class EmergeManager {
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public:
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INodeDefManager *ndef;
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bool enable_mapgen_debug_info;
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// Generation Notify
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u32 gen_notify_on;
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std::set<u32> gen_notify_on_deco_ids;
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// Map generation parameters
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MapgenParams params;
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// Managers of various map generation-related components
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BiomeManager *biomemgr;
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OreManager *oremgr;
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DecorationManager *decomgr;
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SchematicManager *schemmgr;
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// Methods
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EmergeManager(IGameDef *gamedef);
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~EmergeManager();
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void loadMapgenParams();
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void initMapgens();
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void startThreads();
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void stopThreads();
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bool isRunning();
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bool enqueueBlockEmerge(
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u16 peer_id,
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v3s16 blockpos,
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bool allow_generate,
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bool ignore_queue_limits=false);
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bool enqueueBlockEmergeEx(
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v3s16 blockpos,
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u16 peer_id,
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u16 flags,
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EmergeCompletionCallback callback,
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void *callback_param);
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v3s16 getContainingChunk(v3s16 blockpos);
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Mapgen *getCurrentMapgen();
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// Mapgen helpers methods
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Biome *getBiomeAtPoint(v3s16 p);
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int getGroundLevelAtPoint(v2s16 p);
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bool isBlockUnderground(v3s16 blockpos);
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static MapgenFactory *getMapgenFactory(const std::string &mgname);
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static void getMapgenNames(
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std::vector<const char *> *mgnames, bool include_hidden);
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static v3s16 getContainingChunk(v3s16 blockpos, s16 chunksize);
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private:
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std::vector<Mapgen *> m_mapgens;
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std::vector<EmergeThread *> m_threads;
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bool m_threads_active;
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Mutex m_queue_mutex;
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std::map<v3s16, BlockEmergeData> m_blocks_enqueued;
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std::map<u16, u16> m_peer_queue_count;
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u16 m_qlimit_total;
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u16 m_qlimit_diskonly;
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u16 m_qlimit_generate;
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// Requires m_queue_mutex held
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EmergeThread *getOptimalThread();
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bool pushBlockEmergeData(v3s16 pos, u16 peer_requested, u16 flags,
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EmergeCompletionCallback callback, void *callback_param);
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bool popBlockEmergeData(v3s16 pos, BlockEmergeData *bedata);
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friend class EmergeThread;
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};
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#endif
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