SPIGOT-4400: Populators running on existing chunks

By: md_5 <git@md-5.net>

paper-server/nms-patches/ChunkMap.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/server/ChunkMap.java
 +++ b/net/minecraft/server/ChunkMap.java
-@@ -31,6 +31,46 @@
+@@ -31,6 +31,23 @@
              }
          }
  
@@ -19,35 +19,12 @@
 +                }
 +            }
 +        }
-+
-+        if (chunk.newChunk) {
-+            BlockSand.instaFall = true;
-+            java.util.Random random = new java.util.Random();
-+            random.setSeed(chunk.world.getSeed());
-+            long xRand = random.nextLong() / 2L * 2L + 1L;
-+            long zRand = random.nextLong() / 2L * 2L + 1L;
-+            random.setSeed((long) chunk.locX * xRand + (long) chunk.locZ * zRand ^ chunk.world.getSeed());
-+
-+            org.bukkit.World world = chunk.world.getWorld();
-+            if (world != null) {
-+                chunk.world.populating = true;
-+                try {
-+                    for (org.bukkit.generator.BlockPopulator populator : world.getPopulators()) {
-+                        populator.populate(world, random, chunk.bukkitChunk);
-+                    }
-+                } finally {
-+                    chunk.world.populating = false;
-+                }
-+            }
-+            BlockSand.instaFall = false;
-+            chunk.world.getServer().getPluginManager().callEvent(new org.bukkit.event.world.ChunkPopulateEvent(chunk.bukkitChunk));
-+        }
 +        // CraftBukkit end
 +
          return chunk1;
      }
  
-@@ -69,23 +109,25 @@
+@@ -69,23 +86,25 @@
          throw new RuntimeException("Not yet implemented");
      }