X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Femerge.h;h=825ac1c0fbf490a9204a687a0a2c34e9d1c5cab2;hb=630f453da402c7b6f0af9ea32aa8b127ce2e4629;hp=70b67e731f05360a3fc44198eaa5fd43a3d0bc9d;hpb=d31f07bd4b83f858cce589faac56922e12ba670f;p=minetest.git

diff --git a/src/emerge.h b/src/emerge.h
index 70b67e731..825ac1c0f 100644
--- a/src/emerge.h
+++ b/src/emerge.h
@@ -1,28 +1,51 @@
+/*
+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 <queue>
-#include "util/thread.h"
+#include "irr_v3d.h"
+#include "util/container.h"
+#include "mapgen.h" // for MapgenParams
+#include "map.h"
 
-#define BLOCK_EMERGE_ALLOWGEN (1<<0)
+#define BLOCK_EMERGE_ALLOW_GEN   (1 << 0)
+#define BLOCK_EMERGE_FORCE_QUEUE (1 << 1)
 
-#define EMERGE_DBG_OUT(x) \
-	{ if (enable_mapgen_debug_info) \
-	infostream << "EmergeThread: " x << std::endl; }
+#define EMERGE_DBG_OUT(x) do {                         \
+	if (enable_mapgen_debug_info)                      \
+		infostream << "EmergeThread: " x << std::endl; \
+} while (0)
 
-class Mapgen;
-class MapgenParams;
-class MapgenFactory;
-class Biome;
-class BiomeDefManager;
 class EmergeThread;
-class ManualMapVoxelManipulator;
+class INodeDefManager;
+class Settings;
 
-#include "server.h"
+class BiomeManager;
+class OreManager;
+class DecorationManager;
+class SchematicManager;
 
+// Structure containing inputs/outputs for chunk generation
 struct BlockMakeData {
-	ManualMapVoxelManipulator *vmanip;
+	MMVManip *vmanip;
 	u64 seed;
 	v3s16 blockpos_min;
 	v3s16 blockpos_max;
@@ -39,90 +62,118 @@ struct BlockMakeData {
 	~BlockMakeData() { delete vmanip; }
 };
 
+// Result from processing an item on the emerge queue
+enum EmergeAction {
+	EMERGE_CANCELLED,
+	EMERGE_ERRORED,
+	EMERGE_FROM_MEMORY,
+	EMERGE_FROM_DISK,
+	EMERGE_GENERATED,
+};
+
+// Callback
+typedef void (*EmergeCompletionCallback)(
+	v3s16 blockpos, EmergeAction action, void *param);
+
+typedef std::vector<
+	std::pair<
+		EmergeCompletionCallback,
+		void *
+	>
+> EmergeCallbackList;
+
 struct BlockEmergeData {
 	u16 peer_requested;
-	u8 flags;
+	u16 flags;
+	EmergeCallbackList callbacks;
 };
 
 class EmergeManager {
 public:
-	std::map<std::string, MapgenFactory *> mglist;
-	
-	std::vector<Mapgen *> mapgen;
-	std::vector<EmergeThread *> emergethread;
-	
-	//settings
-	MapgenParams *params;
-	bool mapgen_debug_info;
-	u16 qlimit_total;
-	u16 qlimit_diskonly;
-	u16 qlimit_generate;
-	
-	//block emerge queue data structures
-	JMutex queuemutex;
-	std::map<v3s16, BlockEmergeData *> blocks_enqueued;
-	std::map<u16, u16> peer_queue_count;
-
-	//biome manager
-	BiomeDefManager *biomedef;
-
-	EmergeManager(IGameDef *gamedef, BiomeDefManager *bdef);
+	INodeDefManager *ndef;
+	bool enable_mapgen_debug_info;
+
+	// Generation Notify
+	u32 gen_notify_on;
+	std::set<u32> gen_notify_on_deco_ids;
+
+	// Map generation parameters
+	MapgenParams params;
+
+	// Managers of various map generation-related components
+	BiomeManager *biomemgr;
+	OreManager *oremgr;
+	DecorationManager *decomgr;
+	SchematicManager *schemmgr;
+
+	// Methods
+	EmergeManager(IGameDef *gamedef);
 	~EmergeManager();
 
-	void initMapgens(MapgenParams *mgparams);
-	Mapgen *createMapgen(std::string mgname, int mgid,
-						MapgenParams *mgparams);
-	MapgenParams *createMapgenParams(std::string mgname);
-	bool enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate);
-	
-	void registerMapgen(std::string name, MapgenFactory *mgfactory);
-	MapgenParams *getParamsFromSettings(Settings *settings);
-	void setParamsToSettings(Settings *settings);
-	
-	//mapgen helper methods
+	void loadMapgenParams();
+	void initMapgens();
+
+	void startThreads();
+	void stopThreads();
+	bool isRunning();
+
+	bool enqueueBlockEmerge(
+		u16 peer_id,
+		v3s16 blockpos,
+		bool allow_generate,
+		bool ignore_queue_limits=false);
+
+	bool enqueueBlockEmergeEx(
+		v3s16 blockpos,
+		u16 peer_id,
+		u16 flags,
+		EmergeCompletionCallback callback,
+		void *callback_param);
+
+	v3s16 getContainingChunk(v3s16 blockpos);
+
+	Mapgen *getCurrentMapgen();
+
+	// Mapgen helpers methods
 	Biome *getBiomeAtPoint(v3s16 p);
+	int getSpawnLevelAtPoint(v2s16 p);
 	int getGroundLevelAtPoint(v2s16 p);
 	bool isBlockUnderground(v3s16 blockpos);
-	u32 getBlockSeed(v3s16 p);
-};
 
-class EmergeThread : public SimpleThread
-{
-	Server *m_server;
-	ServerMap *map;
-	EmergeManager *emerge;
-	Mapgen *mapgen;
-	bool enable_mapgen_debug_info;
-	int id;
-	
-public:
-	Event qevent;
-	std::queue<v3s16> blockqueue;
-	
-	EmergeThread(Server *server, int ethreadid):
-		SimpleThread(),
-		m_server(server),
-		map(NULL),
-		emerge(NULL),
-		mapgen(NULL),
-		id(ethreadid)
-	{
-	}
-
-	void *Thread();
-
-	void trigger()
-	{
-		setRun(true);
-		if(IsRunning() == false)
-		{
-			Start();
-		}
-	}
-
-	bool popBlockEmerge(v3s16 *pos, u8 *flags);
-	bool getBlockOrStartGen(v3s16 p, MapBlock **b, 
-							BlockMakeData *data, bool allow_generate);
+	static MapgenFactory *getMapgenFactory(const std::string &mgname);
+	static void getMapgenNames(
+		std::vector<const char *> *mgnames, bool include_hidden);
+	static v3s16 getContainingChunk(v3s16 blockpos, s16 chunksize);
+
+private:
+	std::vector<Mapgen *> m_mapgens;
+	std::vector<EmergeThread *> m_threads;
+	bool m_threads_active;
+
+	Mutex m_queue_mutex;
+	std::map<v3s16, BlockEmergeData> m_blocks_enqueued;
+	std::map<u16, u16> m_peer_queue_count;
+
+	u16 m_qlimit_total;
+	u16 m_qlimit_diskonly;
+	u16 m_qlimit_generate;
+
+	// Requires m_queue_mutex held
+	EmergeThread *getOptimalThread();
+
+	bool pushBlockEmergeData(
+		v3s16 pos,
+		u16 peer_requested,
+		u16 flags,
+		EmergeCompletionCallback callback,
+		void *callback_param,
+		bool *entry_already_exists);
+
+	bool popBlockEmergeData(v3s16 pos, BlockEmergeData *bedata);
+
+	friend class EmergeThread;
+
+	DISABLE_CLASS_COPY(EmergeManager);
 };
 
 #endif