1 files changed, 128 insertions, 0 deletions
diff --git a/src/emerge.h b/src/emerge.h
new file mode 100644
index 000000000..70b67e731
--- /dev/null
+++ b/src/emerge.h
@@ -0,0 +1,128 @@
+#ifndef EMERGE_HEADER
+#define EMERGE_HEADER
+
+#include <map>
+#include <queue>
+#include "util/thread.h"
+
+#define BLOCK_EMERGE_ALLOWGEN (1<<0)
+
+#define EMERGE_DBG_OUT(x) \
+	{ if (enable_mapgen_debug_info) \
+	infostream << "EmergeThread: " x << std::endl; }
+
+class Mapgen;
+class MapgenParams;
+class MapgenFactory;
+class Biome;
+class BiomeDefManager;
+class EmergeThread;
+class ManualMapVoxelManipulator;
+
+#include "server.h"
+
+struct BlockMakeData {
+	ManualMapVoxelManipulator *vmanip;
+	u64 seed;
+	v3s16 blockpos_min;
+	v3s16 blockpos_max;
+	v3s16 blockpos_requested;
+	UniqueQueue<v3s16> transforming_liquid;
+	INodeDefManager *nodedef;
+
+	BlockMakeData():
+		vmanip(NULL),
+		seed(0),
+		nodedef(NULL)
+	{}
+
+	~BlockMakeData() { delete vmanip; }
+};
+
+struct BlockEmergeData {
+	u16 peer_requested;
+	u8 flags;
+};
+
+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);
+	~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
+	Biome *getBiomeAtPoint(v3s16 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);
+};
+
+#endif