150 lines
		
	
	
	
		
			6.4 KiB
			
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			150 lines
		
	
	
	
		
			6.4 KiB
			
		
	
	
	
		
			Diff
		
	
	
	
	
	
--- a/net/minecraft/server/level/ChunkProviderServer.java
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+++ b/net/minecraft/server/level/ChunkProviderServer.java
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@@ -85,6 +85,16 @@
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         this.clearCache();
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     }
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+    // CraftBukkit start - properly implement isChunkLoaded
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+    public boolean isChunkLoaded(int chunkX, int chunkZ) {
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+        PlayerChunk chunk = this.chunkMap.getUpdatingChunkIfPresent(ChunkCoordIntPair.asLong(chunkX, chunkZ));
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+        if (chunk == null) {
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+            return false;
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+        }
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+        return chunk.getFullChunkNow() != null;
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+    }
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+    // CraftBukkit end
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+
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     @Override
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     public LightEngineThreaded getLightEngine() {
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         return this.lightEngine;
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@@ -129,7 +139,7 @@
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             for (int l = 0; l < 4; ++l) {
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                 if (k == this.lastChunkPos[l] && chunkstatus == this.lastChunkStatus[l]) {
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                     ichunkaccess = this.lastChunk[l];
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-                    if (ichunkaccess != null || !flag) {
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+                    if (ichunkaccess != null) { // CraftBukkit - the chunk can become accessible in the meantime TODO for non-null chunks it might also make sense to check that the chunk's state hasn't changed in the meantime
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                         return ichunkaccess;
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                     }
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                 }
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@@ -177,12 +187,12 @@
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             if (playerchunk == null) {
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                 return null;
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             } else {
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-                Either<IChunkAccess, PlayerChunk.Failure> either = (Either) playerchunk.getFutureIfPresent(ChunkStatus.FULL).getNow((Object) null);
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+                Either<IChunkAccess, PlayerChunk.Failure> either = (Either) playerchunk.getFutureIfPresent(ChunkStatus.FULL).getNow(null); // CraftBukkit - decompile error
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                 if (either == null) {
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                     return null;
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                 } else {
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-                    IChunkAccess ichunkaccess1 = (IChunkAccess) either.left().orElse((Object) null);
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+                    IChunkAccess ichunkaccess1 = (IChunkAccess) either.left().orElse(null); // CraftBukkit - decompile error
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                     if (ichunkaccess1 != null) {
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                         this.storeInCache(k, ichunkaccess1, ChunkStatus.FULL);
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@@ -230,7 +240,15 @@
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         int l = ChunkLevel.byStatus(chunkstatus);
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         PlayerChunk playerchunk = this.getVisibleChunkIfPresent(k);
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-        if (flag) {
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+        // CraftBukkit start - don't add new ticket for currently unloading chunk
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+        boolean currentlyUnloading = false;
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+        if (playerchunk != null) {
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+            FullChunkStatus oldChunkState = ChunkLevel.fullStatus(playerchunk.oldTicketLevel);
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+            FullChunkStatus currentChunkState = ChunkLevel.fullStatus(playerchunk.getTicketLevel());
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+            currentlyUnloading = (oldChunkState.isOrAfter(FullChunkStatus.FULL) && !currentChunkState.isOrAfter(FullChunkStatus.FULL));
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+        }
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+        if (flag && !currentlyUnloading) {
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+            // CraftBukkit end
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             this.distanceManager.addTicket(TicketType.UNKNOWN, chunkcoordintpair, l, chunkcoordintpair);
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             if (this.chunkAbsent(playerchunk, l)) {
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                 GameProfilerFiller gameprofilerfiller = this.level.getProfiler();
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@@ -249,7 +267,7 @@
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     }
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     private boolean chunkAbsent(@Nullable PlayerChunk playerchunk, int i) {
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-        return playerchunk == null || playerchunk.getTicketLevel() > i;
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+        return playerchunk == null || playerchunk.oldTicketLevel > i; // CraftBukkit using oldTicketLevel for isLoaded checks
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     }
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     @Override
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@@ -317,7 +335,7 @@
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         } else if (!this.level.shouldTickBlocksAt(i)) {
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             return false;
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         } else {
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-            Either<Chunk, PlayerChunk.Failure> either = (Either) playerchunk.getTickingChunkFuture().getNow((Object) null);
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+            Either<Chunk, PlayerChunk.Failure> either = (Either) playerchunk.getTickingChunkFuture().getNow(null); // CraftBukkit - decompile error
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             return either != null && either.left().isPresent();
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         }
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@@ -330,11 +348,31 @@
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     @Override
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     public void close() throws IOException {
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-        this.save(true);
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+        // CraftBukkit start
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+        close(true);
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+    }
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+
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+    public void close(boolean save) throws IOException {
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+        if (save) {
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+            this.save(true);
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+        }
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+        // CraftBukkit end
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         this.lightEngine.close();
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         this.chunkMap.close();
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     }
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+    // CraftBukkit start - modelled on below
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+    public void purgeUnload() {
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+        this.level.getProfiler().push("purge");
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+        this.distanceManager.purgeStaleTickets();
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+        this.runDistanceManagerUpdates();
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+        this.level.getProfiler().popPush("unload");
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+        this.chunkMap.tick(() -> true);
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+        this.level.getProfiler().pop();
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+        this.clearCache();
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+    }
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+    // CraftBukkit end
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+
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     @Override
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     public void tick(BooleanSupplier booleansupplier, boolean flag) {
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         this.level.getProfiler().push("purge");
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@@ -366,7 +404,7 @@
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             gameprofilerfiller.push("pollingChunks");
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             int k = this.level.getGameRules().getInt(GameRules.RULE_RANDOMTICKING);
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-            boolean flag1 = worlddata.getGameTime() % 400L == 0L;
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+            boolean flag1 = level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) != 0L && worlddata.getGameTime() % level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) == 0L; // CraftBukkit
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             gameprofilerfiller.push("naturalSpawnCount");
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             int l = this.distanceManager.getNaturalSpawnChunkCount();
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@@ -387,7 +425,7 @@
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             }
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             gameprofilerfiller.popPush("spawnAndTick");
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-            boolean flag2 = this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING);
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+            boolean flag2 = this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && !level.players().isEmpty(); // CraftBukkit
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             Collections.shuffle(list);
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             Iterator iterator1 = list.iterator();
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@@ -592,13 +630,19 @@
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         }
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         @Override
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-        protected boolean pollTask() {
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+        // CraftBukkit start - process pending Chunk loadCallback() and unloadCallback() after each run task
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+        public boolean pollTask() {
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+        try {
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             if (ChunkProviderServer.this.runDistanceManagerUpdates()) {
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                 return true;
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             } else {
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                 ChunkProviderServer.this.lightEngine.tryScheduleUpdate();
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                 return super.pollTask();
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             }
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+        } finally {
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+            chunkMap.callbackExecutor.run();
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+        }
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+        // CraftBukkit end
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         }
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     }
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