Optimize chunk saving time by holding block updates in chunks directly (fix #299)

patches/net/minecraft/world/WorldServer.java.patch

@@ -380,7 +380,21 @@
      }
  
      public boolean isBlockTickScheduledThisTick(int p_147477_1_, int p_147477_2_, int p_147477_3_, Block p_147477_4_)
-@@ -474,7 +654,7 @@
+@@ -451,6 +631,7 @@
+             {
+                 this.pendingTickListEntriesHashSet.add(nextticklistentry);
+                 this.pendingTickListEntriesTreeSet.add(nextticklistentry);
++                getChunkFromBlockCoords(p_147454_1_, p_147454_3_).blockUpdates.add(nextticklistentry); // KCauldron
+             }
+         }
+     }
+@@ -469,12 +650,13 @@
+         {
+             this.pendingTickListEntriesHashSet.add(nextticklistentry);
+             this.pendingTickListEntriesTreeSet.add(nextticklistentry);
++            getChunkFromBlockCoords(p_147446_1_, p_147446_3_).blockUpdates.add(nextticklistentry); // KCauldron 
+         }
+     }
  
      public void updateEntities()
      {
@@ -389,7 +403,7 @@
          {
              if (this.updateEntityTick++ >= 1200)
              {
-@@ -487,6 +667,7 @@
+@@ -487,6 +669,7 @@
          }
  
          super.updateEntities();
@@ -397,7 +411,7 @@
      }
  
      public void resetUpdateEntityTick()
-@@ -506,7 +687,16 @@
+@@ -506,7 +689,16 @@
          {
              if (i > 1000)
              {
@@ -415,7 +429,15 @@
              }
  
              this.theProfiler.startSection("cleaning");
-@@ -651,7 +841,37 @@
+@@ -523,6 +715,7 @@
+ 
+                 this.pendingTickListEntriesTreeSet.remove(nextticklistentry);
+                 this.pendingTickListEntriesHashSet.remove(nextticklistentry);
++                getChunkFromBlockCoords(nextticklistentry.xCoord, nextticklistentry.zCoord).blockUpdates.remove(nextticklistentry); // KCauldron
+                 this.pendingTickListEntriesThisTick.add(nextticklistentry);
+             }
+ 
+@@ -651,7 +844,37 @@
      protected IChunkProvider createChunkProvider()
      {
          IChunkLoader ichunkloader = this.saveHandler.getChunkLoader(this.provider);
@@ -454,7 +476,7 @@
          return this.theChunkProviderServer;
      }
  
-@@ -659,29 +879,31 @@
+@@ -659,29 +882,31 @@
      {
          ArrayList arraylist = new ArrayList();
  
@@ -501,7 +523,7 @@
          return arraylist;
      }
  
-@@ -733,7 +955,28 @@
+@@ -733,7 +958,28 @@
              int i = 0;
              int j = this.provider.getAverageGroundLevel();
              int k = 0;
@@ -530,7 +552,7 @@
              if (chunkposition != null)
              {
                  i = chunkposition.chunkPosX;
-@@ -876,6 +1119,20 @@
+@@ -876,6 +1122,20 @@
  
      public boolean addWeatherEffect(Entity p_72942_1_)
      {
@@ -551,7 +573,7 @@
          if (super.addWeatherEffect(p_72942_1_))
          {
              this.mcServer.getConfigurationManager().sendToAllNear(p_72942_1_.posX, p_72942_1_.posY, p_72942_1_.posZ, 512.0D, this.provider.dimensionId, new S2CPacketSpawnGlobalEntity(p_72942_1_));
-@@ -894,13 +1151,23 @@
+@@ -894,13 +1154,23 @@
  
      public Explosion newExplosion(Entity p_72885_1_, double p_72885_2_, double p_72885_4_, double p_72885_6_, float p_72885_8_, boolean p_72885_9_, boolean p_72885_10_)
      {
@@ -576,7 +598,7 @@
          if (!p_72885_10_)
          {
              explosion.affectedBlockPositions.clear();
-@@ -977,7 +1244,7 @@
+@@ -977,7 +1247,7 @@
      {
          boolean flag = this.isRaining();
          super.updateWeather();
@@ -585,7 +607,7 @@
          if (this.prevRainingStrength != this.rainingStrength)
          {
              this.mcServer.getConfigurationManager().sendPacketToAllPlayersInDimension(new S2BPacketChangeGameState(7, this.rainingStrength), this.provider.dimensionId);
-@@ -988,10 +1255,6 @@
+@@ -988,10 +1258,6 @@
              this.mcServer.getConfigurationManager().sendPacketToAllPlayersInDimension(new S2BPacketChangeGameState(8, this.thunderingStrength), this.provider.dimensionId);
          }
  
@@ -596,7 +618,7 @@
          if (flag != this.isRaining())
          {
              if (flag)
-@@ -1006,6 +1269,33 @@
+@@ -1006,6 +1272,33 @@
              this.mcServer.getConfigurationManager().sendPacketToAllPlayersInDimension(new S2BPacketChangeGameState(7, this.rainingStrength), this.provider.dimensionId);
              this.mcServer.getConfigurationManager().sendPacketToAllPlayersInDimension(new S2BPacketChangeGameState(8, this.thunderingStrength), this.provider.dimensionId);
          }
@@ -630,7 +652,7 @@
      }
  
      protected int func_152379_p()
-@@ -1069,4 +1359,51 @@
+@@ -1069,4 +1362,51 @@
                  this();
              }
          }

patches/net/minecraft/world/chunk/Chunk.java.patch

@@ -354,7 +354,7 @@
                  }
              }
              else if (p_76607_4_ && this.storageArrays[l] != null && this.storageArrays[l].getBlockMSBArray() != null)
-@@ -1523,4 +1677,21 @@
+@@ -1523,4 +1677,24 @@
              }
          }
      }
@@ -375,4 +375,7 @@
 +            }
 +        });
 +    }
++    
++    // KCauldron hold block updates into each chunk individually
++    public final java.util.Set<net.minecraft.world.NextTickListEntry> blockUpdates = new java.util.TreeSet<net.minecraft.world.NextTickListEntry>();
  }

patches/net/minecraft/world/chunk/storage/AnvilChunkLoader.java.patch

@@ -133,6 +133,15 @@
                  }
  
                  nbttaglist.appendTag(nbttagcompound1);
+@@ -379,7 +400,7 @@
+         }
+ 
+         p_75820_3_.setTag("TileEntities", nbttaglist3);
+-        List list = p_75820_2_.getPendingBlockUpdates(p_75820_1_, false);
++        Set list = p_75820_1_.blockUpdates;
+ 
+         if (list != null)
+         {
 @@ -455,6 +476,7 @@
  
      public void loadEntities(World p_75823_1_, NBTTagCompound p_75823_2_, Chunk chunk)