copied draft of updateNodeMeshes from backup

src/main.cpp

@@ -183,8 +183,6 @@ TODO: Remove IrrlichtWrapper
 Server:
 -------
 
-TODO: When player dies, throw items on map
-
 SUGG: Make an option to the server to disable building and digging near
       the starting position
 
@@ -202,6 +200,8 @@ FIXME: Server sometimes goes into some infinite PeerNotFoundException loop
 * Make a small history check to transformLiquids to detect and log
   continuous oscillations, in such detail that they can be fixed.
 
+TODO: When player dies, throw items on map
+
 Objects:
 --------
 
@@ -215,11 +215,11 @@ Block object server side:
       - A "near blocks" buffer, in which some nearby blocks are stored.
 	  - For all blocks in the buffer, objects are stepped(). This
 	    means they are active.
-	  - TODO: A global active buffer is needed for the server
+	  - A global active buffer is needed for the server
-	  - TODO: A timestamp to blocks
+	  - A timestamp to blocks
-      - TODO: All blocks going in and out of the buffer are recorded.
+      - All blocks going in and out of the buffer are recorded.
-	    - TODO: For outgoing blocks, timestamp is written.
+	    - For outgoing blocks, timestamp is written.
-	    - TODO: For incoming blocks, time difference is calculated and
+	    - For incoming blocks, time difference is calculated and
 	      objects are stepped according to it.
 
 - When an active object goes far from a player, either delete

src/map.cpp

@@ -5692,26 +5692,44 @@ void ClientMap::updateMeshes(v3s16 blockpos, u32 daynight_ratio)
 		b->updateMesh(daynight_ratio);
 	}
 	catch(InvalidPositionException &e){}
-	/*// Trailing edge
+}
-	try{
+
-		v3s16 p = blockpos + v3s16(1,0,0);
+#if 0
-		MapBlock *b = getBlockNoCreate(p);
+/*
+	Update mesh of block in which the node is, and if the node is at the
+	leading edge, update the appropriate leading blocks too.
+*/
+void ClientMap::updateNodeMeshes(v3s16 nodepos, u32 daynight_ratio)
+{
+	v3s16 dirs[4] = {
+		v3s16(0,0,0),
+		v3s16(-1,0,0),
+		v3s16(0,-1,0),
+		v3s16(0,0,-1),
+	};
+	v3s16 blockposes[4];
+	for(u32 i=0; i<4; i++)
+	{
+		v3s16 np = nodepos + dirs[i];
+		blockposes[i] = getNodeBlockPos(np);
+		// Don't update mesh of block if it has been done already
+		bool already_updated = false;
+		for(u32 j=0; j<i; j++)
+		{
+			if(blockposes[j] == blockposes[i])
+			{
+				already_updated = true;
+				break;
+			}
+		}
+		if(already_updated)
+			continue;
+		// Update mesh
+		MapBlock *b = getBlockNoCreate(blockposes[i]);
 		b->updateMesh(daynight_ratio);
 	}
-	catch(InvalidPositionException &e){}
-	try{
-		v3s16 p = blockpos + v3s16(0,1,0);
-		MapBlock *b = getBlockNoCreate(p);
-		b->updateMesh(daynight_ratio);
-	}
-	catch(InvalidPositionException &e){}
-	try{
-		v3s16 p = blockpos + v3s16(0,0,1);
-		MapBlock *b = getBlockNoCreate(p);
-		b->updateMesh(daynight_ratio);
-	}
-	catch(InvalidPositionException &e){}*/
 }
+#endif
 
 void ClientMap::PrintInfo(std::ostream &out)
 {