Biomes: Remove referenced biomes from Decorations on clear

src/gamedef.h

@@ -31,6 +31,7 @@ class ISoundManager;
 class IShaderSource;
 class MtEventManager;
 class IRollbackManager;
+class EmergeManager;
 namespace irr { namespace scene {
 	class IAnimatedMesh;
 	class ISceneManager;
@@ -55,10 +56,10 @@ public:
 	virtual ITextureSource* getTextureSource()=0;
 
 	virtual IShaderSource* getShaderSource()=0;
-	
+
 	// Used for keeping track of names/ids of unknown nodes
 	virtual u16 allocateUnknownNodeId(const std::string &name)=0;
-	
+
 	// Only usable on the client
 	virtual ISoundManager* getSoundManager()=0;
 	virtual MtEventManager* getEventManager()=0;
@@ -69,20 +70,24 @@ public:
 	// Only usable on the server, and NOT thread-safe. It is usable from the
 	// environment thread.
 	virtual IRollbackManager* getRollbackManager(){return NULL;}
-	
+
+	// Only usable on the server. Thread safe if not written while running threads.
+	virtual EmergeManager *getEmergeManager() { return NULL; }
+
 	// Used on the client
 	virtual bool checkLocalPrivilege(const std::string &priv)
 	{ return false; }
-	
+
 	// Shorthands
-	IItemDefManager* idef(){return getItemDefManager();}
-	INodeDefManager* ndef(){return getNodeDefManager();}
-	ICraftDefManager* cdef(){return getCraftDefManager();}
-	ITextureSource* tsrc(){return getTextureSource();}
-	ISoundManager* sound(){return getSoundManager();}
-	IShaderSource* shsrc(){return getShaderSource();}
-	MtEventManager* event(){return getEventManager();}
-	IRollbackManager* rollback(){return getRollbackManager();}
+	IItemDefManager  *idef()     { return getItemDefManager(); }
+	INodeDefManager  *ndef()     { return getNodeDefManager(); }
+	ICraftDefManager *cdef()     { return getCraftDefManager(); }
+	ITextureSource   *tsrc()     { return getTextureSource(); }
+	ISoundManager    *sound()    { return getSoundManager(); }
+	IShaderSource    *shsrc()    { return getShaderSource(); }
+	MtEventManager   *event()    { return getEventManager(); }
+	IRollbackManager *rollback() { return getRollbackManager();}
+	EmergeManager    *emerge()   { return getEmergeManager(); }
 };
 
 #endif