001    package net.minecraft.world;
002    
003    import cpw.mods.fml.relauncher.Side;
004    import cpw.mods.fml.relauncher.SideOnly;
005    
006    import java.io.File;
007    import java.util.ArrayList;
008    import java.util.HashSet;
009    import java.util.Iterator;
010    import java.util.List;
011    import java.util.Random;
012    import java.util.Set;
013    import java.util.TreeSet;
014    import net.minecraft.block.Block;
015    import net.minecraft.block.BlockEventData;
016    import net.minecraft.crash.CrashReport;
017    import net.minecraft.crash.CrashReportCategory;
018    import net.minecraft.entity.Entity;
019    import net.minecraft.entity.EntityTracker;
020    import net.minecraft.entity.EnumCreatureType;
021    import net.minecraft.entity.INpc;
022    import net.minecraft.entity.effect.EntityLightningBolt;
023    import net.minecraft.entity.passive.EntityAnimal;
024    import net.minecraft.entity.passive.EntityWaterMob;
025    import net.minecraft.entity.player.EntityPlayer;
026    import net.minecraft.entity.player.EntityPlayerMP;
027    import net.minecraft.item.Item;
028    import net.minecraft.network.packet.Packet38EntityStatus;
029    import net.minecraft.network.packet.Packet54PlayNoteBlock;
030    import net.minecraft.network.packet.Packet60Explosion;
031    import net.minecraft.network.packet.Packet70GameEvent;
032    import net.minecraft.network.packet.Packet71Weather;
033    import net.minecraft.profiler.Profiler;
034    import net.minecraft.server.MinecraftServer;
035    import net.minecraft.server.management.PlayerManager;
036    import net.minecraft.tileentity.TileEntity;
037    import net.minecraft.util.ChunkCoordinates;
038    import net.minecraft.util.IProgressUpdate;
039    import net.minecraft.util.IntHashMap;
040    import net.minecraft.util.MathHelper;
041    import net.minecraft.util.ReportedException;
042    import net.minecraft.util.Vec3;
043    import net.minecraft.util.WeightedRandom;
044    import net.minecraft.util.WeightedRandomChestContent;
045    import net.minecraft.world.biome.BiomeGenBase;
046    import net.minecraft.world.biome.SpawnListEntry;
047    import net.minecraft.world.biome.WorldChunkManager;
048    import net.minecraft.world.chunk.Chunk;
049    import net.minecraft.world.chunk.IChunkProvider;
050    import net.minecraft.world.chunk.storage.AnvilChunkLoader;
051    import net.minecraft.world.chunk.storage.ExtendedBlockStorage;
052    import net.minecraft.world.chunk.storage.IChunkLoader;
053    import net.minecraft.world.gen.ChunkProviderServer;
054    import net.minecraft.world.gen.feature.WorldGeneratorBonusChest;
055    import net.minecraft.world.storage.ISaveHandler;
056    
057    import net.minecraftforge.common.ChestGenHooks;
058    import static net.minecraftforge.common.ChestGenHooks.*;
059    import net.minecraftforge.common.DimensionManager;
060    import net.minecraftforge.common.MinecraftForge;
061    import net.minecraftforge.event.world.WorldEvent;
062    
063    public class WorldServer extends World
064    {
065        private final MinecraftServer mcServer;
066        private final EntityTracker theEntityTracker;
067        private final PlayerManager thePlayerManager;
068        private Set field_73064_N;
069    
070        /** All work to do in future ticks. */
071        private TreeSet pendingTickListEntries;
072        public ChunkProviderServer theChunkProviderServer;
073    
074        /** set by CommandServerSave{all,Off,On} */
075        public boolean canNotSave;
076    
077        /** is false if there are no players */
078        private boolean allPlayersSleeping;
079        private int updateEntityTick = 0;
080        private final Teleporter field_85177_Q;
081    
082        /**
083         * Double buffer of ServerBlockEventList[] for holding pending BlockEventData's
084         */
085        private ServerBlockEventList[] blockEventCache = new ServerBlockEventList[] {new ServerBlockEventList((ServerBlockEvent)null), new ServerBlockEventList((ServerBlockEvent)null)};
086    
087        /**
088         * The index into the blockEventCache; either 0, or 1, toggled in sendBlockEventPackets  where all BlockEvent are
089         * applied locally and send to clients.
090         */
091        private int blockEventCacheIndex = 0;
092        public static final WeightedRandomChestContent[] bonusChestContent = new WeightedRandomChestContent[] {new WeightedRandomChestContent(Item.stick.shiftedIndex, 0, 1, 3, 10), new WeightedRandomChestContent(Block.planks.blockID, 0, 1, 3, 10), new WeightedRandomChestContent(Block.wood.blockID, 0, 1, 3, 10), new WeightedRandomChestContent(Item.axeStone.shiftedIndex, 0, 1, 1, 3), new WeightedRandomChestContent(Item.axeWood.shiftedIndex, 0, 1, 1, 5), new WeightedRandomChestContent(Item.pickaxeStone.shiftedIndex, 0, 1, 1, 3), new WeightedRandomChestContent(Item.pickaxeWood.shiftedIndex, 0, 1, 1, 5), new WeightedRandomChestContent(Item.appleRed.shiftedIndex, 0, 2, 3, 5), new WeightedRandomChestContent(Item.bread.shiftedIndex, 0, 2, 3, 3)};
093    
094        /** An IntHashMap of entity IDs (integers) to their Entity objects. */
095        private IntHashMap entityIdMap;
096    
097        /** Stores the recently processed (lighting) chunks */
098        protected Set<ChunkCoordIntPair> doneChunks = new HashSet<ChunkCoordIntPair>();
099        public List<Teleporter> customTeleporters = new ArrayList<Teleporter>();
100    
101        public WorldServer(MinecraftServer par1MinecraftServer, ISaveHandler par2ISaveHandler, String par3Str, int par4, WorldSettings par5WorldSettings, Profiler par6Profiler)
102        {
103            super(par2ISaveHandler, par3Str, par5WorldSettings, WorldProvider.getProviderForDimension(par4), par6Profiler);
104            this.mcServer = par1MinecraftServer;
105            this.theEntityTracker = new EntityTracker(this);
106            this.thePlayerManager = new PlayerManager(this, par1MinecraftServer.getConfigurationManager().getViewDistance());
107    
108            if (this.entityIdMap == null)
109            {
110                this.entityIdMap = new IntHashMap();
111            }
112    
113            if (this.field_73064_N == null)
114            {
115                this.field_73064_N = new HashSet();
116            }
117    
118            if (this.pendingTickListEntries == null)
119            {
120                this.pendingTickListEntries = new TreeSet();
121            }
122    
123            this.field_85177_Q = new Teleporter(this);
124            DimensionManager.setWorld(par4, this);
125        }
126    
127        /**
128         * Runs a single tick for the world
129         */
130        public void tick()
131        {
132            super.tick();
133    
134            if (this.getWorldInfo().isHardcoreModeEnabled() && this.difficultySetting < 3)
135            {
136                this.difficultySetting = 3;
137            }
138    
139            this.provider.worldChunkMgr.cleanupCache();
140    
141            if (this.areAllPlayersAsleep())
142            {
143                boolean var1 = false;
144    
145                if (this.spawnHostileMobs && this.difficultySetting >= 1)
146                {
147                    ;
148                }
149    
150                if (!var1)
151                {
152                    long var2 = this.worldInfo.getWorldTime() + 24000L;
153                    this.worldInfo.setWorldTime(var2 - var2 % 24000L);
154                    this.wakeAllPlayers();
155                }
156            }
157    
158            this.theProfiler.startSection("mobSpawner");
159    
160            if (this.getGameRules().getGameRuleBooleanValue("doMobSpawning"))
161            {
162                SpawnerAnimals.findChunksForSpawning(this, this.spawnHostileMobs, this.spawnPeacefulMobs, this.worldInfo.getWorldTotalTime() % 400L == 0L);
163            }
164    
165            this.theProfiler.endStartSection("chunkSource");
166            this.chunkProvider.unload100OldestChunks();
167            int var4 = this.calculateSkylightSubtracted(1.0F);
168    
169            if (var4 != this.skylightSubtracted)
170            {
171                this.skylightSubtracted = var4;
172            }
173    
174            this.sendAndApplyBlockEvents();
175            this.worldInfo.incrementTotalWorldTime(this.worldInfo.getWorldTotalTime() + 1L);
176            this.worldInfo.setWorldTime(this.worldInfo.getWorldTime() + 1L);
177            this.theProfiler.endStartSection("tickPending");
178            this.tickUpdates(false);
179            this.theProfiler.endStartSection("tickTiles");
180            this.tickBlocksAndAmbiance();
181            this.theProfiler.endStartSection("chunkMap");
182            this.thePlayerManager.updatePlayerInstances();
183            this.theProfiler.endStartSection("village");
184            this.villageCollectionObj.tick();
185            this.villageSiegeObj.tick();
186            this.theProfiler.endStartSection("portalForcer");
187            this.field_85177_Q.func_85189_a(this.getTotalWorldTime());
188            for (Teleporter tele : customTeleporters)
189            {
190                tele.func_85189_a(getTotalWorldTime());
191            }
192            this.theProfiler.endSection();
193            this.sendAndApplyBlockEvents();
194        }
195    
196        /**
197         * only spawns creatures allowed by the chunkProvider
198         */
199        public SpawnListEntry spawnRandomCreature(EnumCreatureType par1EnumCreatureType, int par2, int par3, int par4)
200        {
201            List var5 = this.getChunkProvider().getPossibleCreatures(par1EnumCreatureType, par2, par3, par4);
202            return var5 != null && !var5.isEmpty() ? (SpawnListEntry)WeightedRandom.getRandomItem(this.rand, var5) : null;
203        }
204    
205        /**
206         * Updates the flag that indicates whether or not all players in the world are sleeping.
207         */
208        public void updateAllPlayersSleepingFlag()
209        {
210            this.allPlayersSleeping = !this.playerEntities.isEmpty();
211            Iterator var1 = this.playerEntities.iterator();
212    
213            while (var1.hasNext())
214            {
215                EntityPlayer var2 = (EntityPlayer)var1.next();
216    
217                if (!var2.isPlayerSleeping())
218                {
219                    this.allPlayersSleeping = false;
220                    break;
221                }
222            }
223        }
224    
225        protected void wakeAllPlayers()
226        {
227            this.allPlayersSleeping = false;
228            Iterator var1 = this.playerEntities.iterator();
229    
230            while (var1.hasNext())
231            {
232                EntityPlayer var2 = (EntityPlayer)var1.next();
233    
234                if (var2.isPlayerSleeping())
235                {
236                    var2.wakeUpPlayer(false, false, true);
237                }
238            }
239    
240            this.resetRainAndThunder();
241        }
242    
243        private void resetRainAndThunder()
244        {
245            provider.resetRainAndThunder();
246        }
247    
248        public boolean areAllPlayersAsleep()
249        {
250            if (this.allPlayersSleeping && !this.isRemote)
251            {
252                Iterator var1 = this.playerEntities.iterator();
253                EntityPlayer var2;
254    
255                do
256                {
257                    if (!var1.hasNext())
258                    {
259                        return true;
260                    }
261    
262                    var2 = (EntityPlayer)var1.next();
263                }
264                while (var2.isPlayerFullyAsleep());
265    
266                return false;
267            }
268            else
269            {
270                return false;
271            }
272        }
273    
274        @SideOnly(Side.CLIENT)
275    
276        /**
277         * Sets a new spawn location by finding an uncovered block at a random (x,z) location in the chunk.
278         */
279        public void setSpawnLocation()
280        {
281            if (this.worldInfo.getSpawnY() <= 0)
282            {
283                this.worldInfo.setSpawnY(64);
284            }
285    
286            int var1 = this.worldInfo.getSpawnX();
287            int var2 = this.worldInfo.getSpawnZ();
288            int var3 = 0;
289    
290            while (this.getFirstUncoveredBlock(var1, var2) == 0)
291            {
292                var1 += this.rand.nextInt(8) - this.rand.nextInt(8);
293                var2 += this.rand.nextInt(8) - this.rand.nextInt(8);
294                ++var3;
295    
296                if (var3 == 10000)
297                {
298                    break;
299                }
300            }
301    
302            this.worldInfo.setSpawnX(var1);
303            this.worldInfo.setSpawnZ(var2);
304        }
305    
306        /**
307         * plays random cave ambient sounds and runs updateTick on random blocks within each chunk in the vacinity of a
308         * player
309         */
310        protected void tickBlocksAndAmbiance()
311        {
312            super.tickBlocksAndAmbiance();
313            int var1 = 0;
314            int var2 = 0;
315            Iterator var3 = this.activeChunkSet.iterator();
316    
317            doneChunks.retainAll(activeChunkSet);
318            if (doneChunks.size() == activeChunkSet.size())
319            {
320                doneChunks.clear();
321            }
322    
323            final long startTime = System.nanoTime();
324    
325            while (var3.hasNext())
326            {
327                ChunkCoordIntPair var4 = (ChunkCoordIntPair)var3.next();
328                int var5 = var4.chunkXPos * 16;
329                int var6 = var4.chunkZPos * 16;
330                this.theProfiler.startSection("getChunk");
331                Chunk var7 = this.getChunkFromChunkCoords(var4.chunkXPos, var4.chunkZPos);
332                this.moodSoundAndLightCheck(var5, var6, var7);
333                this.theProfiler.endStartSection("tickChunk");
334                //Limits and evenly distributes the lighting update time
335                if (System.nanoTime() - startTime <= 4000000 && doneChunks.add(var4)) 
336                { 
337                    var7.updateSkylight();
338                }
339                this.theProfiler.endStartSection("thunder");
340                int var8;
341                int var9;
342                int var10;
343                int var11;
344    
345                if (provider.canDoLightning(var7) && this.rand.nextInt(100000) == 0 && this.isRaining() && this.isThundering())
346                {
347                    this.updateLCG = this.updateLCG * 3 + 1013904223;
348                    var8 = this.updateLCG >> 2;
349                    var9 = var5 + (var8 & 15);
350                    var10 = var6 + (var8 >> 8 & 15);
351                    var11 = this.getPrecipitationHeight(var9, var10);
352    
353                    if (this.canLightningStrikeAt(var9, var11, var10))
354                    {
355                        this.addWeatherEffect(new EntityLightningBolt(this, (double)var9, (double)var11, (double)var10));
356                    }
357                }
358    
359                this.theProfiler.endStartSection("iceandsnow");
360                int var13;
361    
362                if (provider.canDoRainSnowIce(var7) && this.rand.nextInt(16) == 0)
363                {
364                    this.updateLCG = this.updateLCG * 3 + 1013904223;
365                    var8 = this.updateLCG >> 2;
366                    var9 = var8 & 15;
367                    var10 = var8 >> 8 & 15;
368                    var11 = this.getPrecipitationHeight(var9 + var5, var10 + var6);
369    
370                    if (this.isBlockFreezableNaturally(var9 + var5, var11 - 1, var10 + var6))
371                    {
372                        this.setBlockWithNotify(var9 + var5, var11 - 1, var10 + var6, Block.ice.blockID);
373                    }
374    
375                    if (this.isRaining() && this.canSnowAt(var9 + var5, var11, var10 + var6))
376                    {
377                        this.setBlockWithNotify(var9 + var5, var11, var10 + var6, Block.snow.blockID);
378                    }
379    
380                    if (this.isRaining())
381                    {
382                        BiomeGenBase var12 = this.getBiomeGenForCoords(var9 + var5, var10 + var6);
383    
384                        if (var12.canSpawnLightningBolt())
385                        {
386                            var13 = this.getBlockId(var9 + var5, var11 - 1, var10 + var6);
387    
388                            if (var13 != 0)
389                            {
390                                Block.blocksList[var13].fillWithRain(this, var9 + var5, var11 - 1, var10 + var6);
391                            }
392                        }
393                    }
394                }
395    
396                this.theProfiler.endStartSection("tickTiles");
397                ExtendedBlockStorage[] var19 = var7.getBlockStorageArray();
398                var9 = var19.length;
399    
400                for (var10 = 0; var10 < var9; ++var10)
401                {
402                    ExtendedBlockStorage var21 = var19[var10];
403    
404                    if (var21 != null && var21.getNeedsRandomTick())
405                    {
406                        for (int var20 = 0; var20 < 3; ++var20)
407                        {
408                            this.updateLCG = this.updateLCG * 3 + 1013904223;
409                            var13 = this.updateLCG >> 2;
410                            int var14 = var13 & 15;
411                            int var15 = var13 >> 8 & 15;
412                            int var16 = var13 >> 16 & 15;
413                            int var17 = var21.getExtBlockID(var14, var16, var15);
414                            ++var2;
415                            Block var18 = Block.blocksList[var17];
416    
417                            if (var18 != null && var18.getTickRandomly())
418                            {
419                                ++var1;
420                                var18.updateTick(this, var14 + var5, var16 + var21.getYLocation(), var15 + var6, this.rand);
421                            }
422                        }
423                    }
424                }
425    
426                this.theProfiler.endSection();
427            }
428        }
429    
430        /**
431         * Schedules a tick to a block with a delay (Most commonly the tick rate)
432         */
433        public void scheduleBlockUpdate(int par1, int par2, int par3, int par4, int par5)
434        {
435            this.func_82740_a(par1, par2, par3, par4, par5, 0);
436        }
437    
438        public void func_82740_a(int par1, int par2, int par3, int par4, int par5, int par6)
439        {
440            NextTickListEntry var7 = new NextTickListEntry(par1, par2, par3, par4);
441            boolean isForced = getPersistentChunks().containsKey(new ChunkCoordIntPair(var7.xCoord >> 4, var7.zCoord >> 4));
442            byte var8 = isForced ? (byte)0 : 8;
443    
444            if (this.scheduledUpdatesAreImmediate && par4 > 0)
445            {
446                if (Block.blocksList[par4].func_82506_l())
447                {
448                    if (this.checkChunksExist(var7.xCoord - var8, var7.yCoord - var8, var7.zCoord - var8, var7.xCoord + var8, var7.yCoord + var8, var7.zCoord + var8))
449                    {
450                        int var9 = this.getBlockId(var7.xCoord, var7.yCoord, var7.zCoord);
451    
452                        if (var9 == var7.blockID && var9 > 0)
453                        {
454                            Block.blocksList[var9].updateTick(this, var7.xCoord, var7.yCoord, var7.zCoord, this.rand);
455                        }
456                    }
457    
458                    return;
459                }
460    
461                par5 = 1;
462            }
463    
464            if (this.checkChunksExist(par1 - var8, par2 - var8, par3 - var8, par1 + var8, par2 + var8, par3 + var8))
465            {
466                if (par4 > 0)
467                {
468                    var7.setScheduledTime((long)par5 + this.worldInfo.getWorldTotalTime());
469                    var7.func_82753_a(par6);
470                }
471    
472                if (!this.field_73064_N.contains(var7))
473                {
474                    this.field_73064_N.add(var7);
475                    this.pendingTickListEntries.add(var7);
476                }
477            }
478        }
479    
480        /**
481         * Schedules a block update from the saved information in a chunk. Called when the chunk is loaded.
482         */
483        public void scheduleBlockUpdateFromLoad(int par1, int par2, int par3, int par4, int par5)
484        {
485            NextTickListEntry var6 = new NextTickListEntry(par1, par2, par3, par4);
486    
487            if (par4 > 0)
488            {
489                var6.setScheduledTime((long)par5 + this.worldInfo.getWorldTotalTime());
490            }
491    
492            if (!this.field_73064_N.contains(var6))
493            {
494                this.field_73064_N.add(var6);
495                this.pendingTickListEntries.add(var6);
496            }
497        }
498    
499        /**
500         * Updates (and cleans up) entities and tile entities
501         */
502        public void updateEntities()
503        {
504            if (this.playerEntities.isEmpty() && getPersistentChunks().isEmpty())
505            {
506                if (this.updateEntityTick++ >= 1200)
507                {
508                    return;
509                }
510            }
511            else
512            {
513                this.resetUpdateEntityTick();
514            }
515    
516            super.updateEntities();
517        }
518    
519        /**
520         * Resets the updateEntityTick field to 0
521         */
522        public void resetUpdateEntityTick()
523        {
524            this.updateEntityTick = 0;
525        }
526    
527        /**
528         * Runs through the list of updates to run and ticks them
529         */
530        public boolean tickUpdates(boolean par1)
531        {
532            int var2 = this.pendingTickListEntries.size();
533    
534            if (var2 != this.field_73064_N.size())
535            {
536                throw new IllegalStateException("TickNextTick list out of synch");
537            }
538            else
539            {
540                if (var2 > 1000)
541                {
542                    var2 = 1000;
543                }
544    
545                for (int var3 = 0; var3 < var2; ++var3)
546                {
547                    NextTickListEntry var4 = (NextTickListEntry)this.pendingTickListEntries.first();
548    
549                    if (!par1 && var4.scheduledTime > this.worldInfo.getWorldTotalTime())
550                    {
551                        break;
552                    }
553    
554                    this.pendingTickListEntries.remove(var4);
555                    this.field_73064_N.remove(var4);
556                    boolean isForced = getPersistentChunks().containsKey(new ChunkCoordIntPair(var4.xCoord >> 4, var4.zCoord >> 4));
557                    byte var5 = isForced ? (byte)0 : 8;
558    
559                    if (this.checkChunksExist(var4.xCoord - var5, var4.yCoord - var5, var4.zCoord - var5, var4.xCoord + var5, var4.yCoord + var5, var4.zCoord + var5))
560                    {
561                        int var6 = this.getBlockId(var4.xCoord, var4.yCoord, var4.zCoord);
562    
563                        if (var6 == var4.blockID && var6 > 0)
564                        {
565                            try
566                            {
567                                Block.blocksList[var6].updateTick(this, var4.xCoord, var4.yCoord, var4.zCoord, this.rand);
568                            }
569                            catch (Throwable var13)
570                            {
571                                CrashReport var8 = CrashReport.makeCrashReport(var13, "Exception while ticking a block");
572                                CrashReportCategory var9 = var8.makeCategory("Block being ticked");
573                                int var10;
574    
575                                try
576                                {
577                                    var10 = this.getBlockMetadata(var4.xCoord, var4.yCoord, var4.zCoord);
578                                }
579                                catch (Throwable var12)
580                                {
581                                    var10 = -1;
582                                }
583    
584                                CrashReportCategory.func_85068_a(var9, var4.xCoord, var4.yCoord, var4.zCoord, var6, var10);
585                                throw new ReportedException(var8);
586                            }
587                        }
588                    }
589                }
590    
591                return !this.pendingTickListEntries.isEmpty();
592            }
593        }
594    
595        public List getPendingBlockUpdates(Chunk par1Chunk, boolean par2)
596        {
597            ArrayList var3 = null;
598            ChunkCoordIntPair var4 = par1Chunk.getChunkCoordIntPair();
599            int var5 = var4.chunkXPos << 4;
600            int var6 = var5 + 16;
601            int var7 = var4.chunkZPos << 4;
602            int var8 = var7 + 16;
603            Iterator var9 = this.pendingTickListEntries.iterator();
604    
605            while (var9.hasNext())
606            {
607                NextTickListEntry var10 = (NextTickListEntry)var9.next();
608    
609                if (var10.xCoord >= var5 && var10.xCoord < var6 && var10.zCoord >= var7 && var10.zCoord < var8)
610                {
611                    if (par2)
612                    {
613                        this.field_73064_N.remove(var10);
614                        var9.remove();
615                    }
616    
617                    if (var3 == null)
618                    {
619                        var3 = new ArrayList();
620                    }
621    
622                    var3.add(var10);
623                }
624            }
625    
626            return var3;
627        }
628    
629        /**
630         * Will update the entity in the world if the chunk the entity is in is currently loaded or its forced to update.
631         * Args: entity, forceUpdate
632         */
633        public void updateEntityWithOptionalForce(Entity par1Entity, boolean par2)
634        {
635            if (!this.mcServer.getCanSpawnAnimals() && (par1Entity instanceof EntityAnimal || par1Entity instanceof EntityWaterMob))
636            {
637                par1Entity.setDead();
638            }
639    
640            if (!this.mcServer.getCanSpawnNPCs() && par1Entity instanceof INpc)
641            {
642                par1Entity.setDead();
643            }
644    
645            if (!(par1Entity.riddenByEntity instanceof EntityPlayer))
646            {
647                super.updateEntityWithOptionalForce(par1Entity, par2);
648            }
649        }
650    
651        /**
652         * direct call to super.updateEntityWithOptionalForce
653         */
654        public void uncheckedUpdateEntity(Entity par1Entity, boolean par2)
655        {
656            super.updateEntityWithOptionalForce(par1Entity, par2);
657        }
658    
659        /**
660         * Creates the chunk provider for this world. Called in the constructor. Retrieves provider from worldProvider?
661         */
662        protected IChunkProvider createChunkProvider()
663        {
664            IChunkLoader var1 = this.saveHandler.getChunkLoader(this.provider);
665            this.theChunkProviderServer = new ChunkProviderServer(this, var1, this.provider.createChunkGenerator());
666            return this.theChunkProviderServer;
667        }
668    
669        /**
670         * pars: min x,y,z , max x,y,z
671         */
672        public List getAllTileEntityInBox(int par1, int par2, int par3, int par4, int par5, int par6)
673        {
674            ArrayList var7 = new ArrayList();
675    
676            for(int x = (par1 >> 4); x <= (par4 >> 4); x++)
677            {
678                for(int z = (par3 >> 4); z <= (par6 >> 4); z++)
679                {
680                    Chunk chunk = getChunkFromChunkCoords(x, z);
681                    if (chunk != null)
682                    {
683                        for(Object obj : chunk.chunkTileEntityMap.values())
684                        {
685                            TileEntity entity = (TileEntity)obj;
686                            if (!entity.isInvalid())
687                            {
688                                if (entity.xCoord >= par1 && entity.yCoord >= par2 && entity.zCoord >= par3 &&
689                                    entity.xCoord <= par4 && entity.yCoord <= par5 && entity.zCoord <= par6)
690                                {
691                                    var7.add(entity);
692                                }
693                            }
694                        }
695                    }
696                }
697            }
698            return var7;
699        }
700    
701        /**
702         * Called when checking if a certain block can be mined or not. The 'spawn safe zone' check is located here.
703         */
704        public boolean canMineBlock(EntityPlayer par1EntityPlayer, int par2, int par3, int par4)
705        {
706            return super.canMineBlock(par1EntityPlayer, par2, par3, par4);
707        }
708    
709        public boolean canMineBlockBody(EntityPlayer par1EntityPlayer, int par2, int par3, int par4)
710        {
711            int var5 = MathHelper.abs_int(par2 - this.worldInfo.getSpawnX());
712            int var6 = MathHelper.abs_int(par4 - this.worldInfo.getSpawnZ());
713    
714            if (var5 > var6)
715            {
716                var6 = var5;
717            }
718    
719            return var6 > mcServer.getSpawnProtectionSize() || this.mcServer.getConfigurationManager().areCommandsAllowed(par1EntityPlayer.username) || this.mcServer.isSinglePlayer();
720        }
721    
722        protected void initialize(WorldSettings par1WorldSettings)
723        {
724            if (this.entityIdMap == null)
725            {
726                this.entityIdMap = new IntHashMap();
727            }
728    
729            if (this.field_73064_N == null)
730            {
731                this.field_73064_N = new HashSet();
732            }
733    
734            if (this.pendingTickListEntries == null)
735            {
736                this.pendingTickListEntries = new TreeSet();
737            }
738    
739            this.createSpawnPosition(par1WorldSettings);
740            super.initialize(par1WorldSettings);
741        }
742    
743        /**
744         * creates a spawn position at random within 256 blocks of 0,0
745         */
746        protected void createSpawnPosition(WorldSettings par1WorldSettings)
747        {
748            if (!this.provider.canRespawnHere())
749            {
750                this.worldInfo.setSpawnPosition(0, this.provider.getAverageGroundLevel(), 0);
751            }
752            else
753            {
754                this.findingSpawnPoint = true;
755                WorldChunkManager var2 = this.provider.worldChunkMgr;
756                List var3 = var2.getBiomesToSpawnIn();
757                Random var4 = new Random(this.getSeed());
758                ChunkPosition var5 = var2.findBiomePosition(0, 0, 256, var3, var4);
759                int var6 = 0;
760                int var7 = this.provider.getAverageGroundLevel();
761                int var8 = 0;
762    
763                if (var5 != null)
764                {
765                    var6 = var5.x;
766                    var8 = var5.z;
767                }
768                else
769                {
770                    System.out.println("Unable to find spawn biome");
771                }
772    
773                int var9 = 0;
774    
775                while (!this.provider.canCoordinateBeSpawn(var6, var8))
776                {
777                    var6 += var4.nextInt(64) - var4.nextInt(64);
778                    var8 += var4.nextInt(64) - var4.nextInt(64);
779                    ++var9;
780    
781                    if (var9 == 1000)
782                    {
783                        break;
784                    }
785                }
786    
787                this.worldInfo.setSpawnPosition(var6, var7, var8);
788                this.findingSpawnPoint = false;
789    
790                if (par1WorldSettings.isBonusChestEnabled())
791                {
792                    this.createBonusChest();
793                }
794            }
795        }
796    
797        /**
798         * Creates the bonus chest in the world.
799         */
800        protected void createBonusChest()
801        {
802            WorldGeneratorBonusChest var1 = new WorldGeneratorBonusChest(ChestGenHooks.getItems(BONUS_CHEST, rand), ChestGenHooks.getCount(BONUS_CHEST, rand));
803    
804            for (int var2 = 0; var2 < 10; ++var2)
805            {
806                int var3 = this.worldInfo.getSpawnX() + this.rand.nextInt(6) - this.rand.nextInt(6);
807                int var4 = this.worldInfo.getSpawnZ() + this.rand.nextInt(6) - this.rand.nextInt(6);
808                int var5 = this.getTopSolidOrLiquidBlock(var3, var4) + 1;
809    
810                if (var1.generate(this, this.rand, var3, var5, var4))
811                {
812                    break;
813                }
814            }
815        }
816    
817        /**
818         * Gets the hard-coded portal location to use when entering this dimension.
819         */
820        public ChunkCoordinates getEntrancePortalLocation()
821        {
822            return this.provider.getEntrancePortalLocation();
823        }
824    
825        /**
826         * Saves all chunks to disk while updating progress bar.
827         */
828        public void saveAllChunks(boolean par1, IProgressUpdate par2IProgressUpdate) throws MinecraftException
829        {
830            if (this.chunkProvider.canSave())
831            {
832                if (par2IProgressUpdate != null)
833                {
834                    par2IProgressUpdate.displayProgressMessage("Saving level");
835                }
836    
837                this.saveLevel();
838    
839                if (par2IProgressUpdate != null)
840                {
841                    par2IProgressUpdate.resetProgresAndWorkingMessage("Saving chunks");
842                }
843    
844                this.chunkProvider.saveChunks(par1, par2IProgressUpdate);
845                MinecraftForge.EVENT_BUS.post(new WorldEvent.Save(this));
846            }
847        }
848    
849        /**
850         * Saves the chunks to disk.
851         */
852        protected void saveLevel() throws MinecraftException
853        {
854            this.checkSessionLock();
855            this.saveHandler.saveWorldInfoWithPlayer(this.worldInfo, this.mcServer.getConfigurationManager().getTagsFromLastWrite());
856            this.mapStorage.saveAllData();
857            this.perWorldStorage.saveAllData();
858        }
859    
860        /**
861         * Start the skin for this entity downloading, if necessary, and increment its reference counter
862         */
863        protected void obtainEntitySkin(Entity par1Entity)
864        {
865            super.obtainEntitySkin(par1Entity);
866            this.entityIdMap.addKey(par1Entity.entityId, par1Entity);
867            Entity[] var2 = par1Entity.getParts();
868    
869            if (var2 != null)
870            {
871                for (int var3 = 0; var3 < var2.length; ++var3)
872                {
873                    this.entityIdMap.addKey(var2[var3].entityId, var2[var3]);
874                }
875            }
876        }
877    
878        /**
879         * Decrement the reference counter for this entity's skin image data
880         */
881        public void releaseEntitySkin(Entity par1Entity)
882        {
883            super.releaseEntitySkin(par1Entity);
884            this.entityIdMap.removeObject(par1Entity.entityId);
885            Entity[] var2 = par1Entity.getParts();
886    
887            if (var2 != null)
888            {
889                for (int var3 = 0; var3 < var2.length; ++var3)
890                {
891                    this.entityIdMap.removeObject(var2[var3].entityId);
892                }
893            }
894        }
895    
896        /**
897         * Returns the Entity with the given ID, or null if it doesn't exist in this World.
898         */
899        public Entity getEntityByID(int par1)
900        {
901            return (Entity)this.entityIdMap.lookup(par1);
902        }
903    
904        /**
905         * adds a lightning bolt to the list of lightning bolts in this world.
906         */
907        public boolean addWeatherEffect(Entity par1Entity)
908        {
909            if (super.addWeatherEffect(par1Entity))
910            {
911                this.mcServer.getConfigurationManager().sendToAllNear(par1Entity.posX, par1Entity.posY, par1Entity.posZ, 512.0D, this.provider.dimensionId, new Packet71Weather(par1Entity));
912                return true;
913            }
914            else
915            {
916                return false;
917            }
918        }
919    
920        /**
921         * sends a Packet 38 (Entity Status) to all tracked players of that entity
922         */
923        public void setEntityState(Entity par1Entity, byte par2)
924        {
925            Packet38EntityStatus var3 = new Packet38EntityStatus(par1Entity.entityId, par2);
926            this.getEntityTracker().sendPacketToAllAssociatedPlayers(par1Entity, var3);
927        }
928    
929        /**
930         * returns a new explosion. Does initiation (at time of writing Explosion is not finished)
931         */
932        public Explosion newExplosion(Entity par1Entity, double par2, double par4, double par6, float par8, boolean par9, boolean par10)
933        {
934            Explosion var11 = new Explosion(this, par1Entity, par2, par4, par6, par8);
935            var11.isFlaming = par9;
936            var11.isSmoking = par10;
937            var11.doExplosionA();
938            var11.doExplosionB(false);
939    
940            if (!par10)
941            {
942                var11.affectedBlockPositions.clear();
943            }
944    
945            Iterator var12 = this.playerEntities.iterator();
946    
947            while (var12.hasNext())
948            {
949                EntityPlayer var13 = (EntityPlayer)var12.next();
950    
951                if (var13.getDistanceSq(par2, par4, par6) < 4096.0D)
952                {
953                    ((EntityPlayerMP)var13).playerNetServerHandler.sendPacketToPlayer(new Packet60Explosion(par2, par4, par6, par8, var11.affectedBlockPositions, (Vec3)var11.func_77277_b().get(var13)));
954                }
955            }
956    
957            return var11;
958        }
959    
960        /**
961         * Adds a block event with the given Args to the blockEventCache. During the next tick(), the block specified will
962         * have its onBlockEvent handler called with the given parameters. Args: X,Y,Z, BlockID, EventID, EventParameter
963         */
964        public void addBlockEvent(int par1, int par2, int par3, int par4, int par5, int par6)
965        {
966            BlockEventData var7 = new BlockEventData(par1, par2, par3, par4, par5, par6);
967            Iterator var8 = this.blockEventCache[this.blockEventCacheIndex].iterator();
968            BlockEventData var9;
969    
970            do
971            {
972                if (!var8.hasNext())
973                {
974                    this.blockEventCache[this.blockEventCacheIndex].add(var7);
975                    return;
976                }
977    
978                var9 = (BlockEventData)var8.next();
979            }
980            while (!var9.equals(var7));
981        }
982    
983        /**
984         * Send and apply locally all pending BlockEvents to each player with 64m radius of the event.
985         */
986        private void sendAndApplyBlockEvents()
987        {
988            while (!this.blockEventCache[this.blockEventCacheIndex].isEmpty())
989            {
990                int var1 = this.blockEventCacheIndex;
991                this.blockEventCacheIndex ^= 1;
992                Iterator var2 = this.blockEventCache[var1].iterator();
993    
994                while (var2.hasNext())
995                {
996                    BlockEventData var3 = (BlockEventData)var2.next();
997    
998                    if (this.onBlockEventReceived(var3))
999                    {
1000                        this.mcServer.getConfigurationManager().sendToAllNear((double)var3.getX(), (double)var3.getY(), (double)var3.getZ(), 64.0D, this.provider.dimensionId, new Packet54PlayNoteBlock(var3.getX(), var3.getY(), var3.getZ(), var3.getBlockID(), var3.getEventID(), var3.getEventParameter()));
1001                    }
1002                }
1003    
1004                this.blockEventCache[var1].clear();
1005            }
1006        }
1007    
1008        /**
1009         * Called to apply a pending BlockEvent to apply to the current world.
1010         */
1011        private boolean onBlockEventReceived(BlockEventData par1BlockEventData)
1012        {
1013            int var2 = this.getBlockId(par1BlockEventData.getX(), par1BlockEventData.getY(), par1BlockEventData.getZ());
1014    
1015            if (var2 == par1BlockEventData.getBlockID())
1016            {
1017                Block.blocksList[var2].onBlockEventReceived(this, par1BlockEventData.getX(), par1BlockEventData.getY(), par1BlockEventData.getZ(), par1BlockEventData.getEventID(), par1BlockEventData.getEventParameter());
1018                return true;
1019            }
1020            else
1021            {
1022                return false;
1023            }
1024        }
1025    
1026        /**
1027         * Syncs all changes to disk and wait for completion.
1028         */
1029        public void flush()
1030        {
1031            this.saveHandler.flush();
1032        }
1033    
1034        /**
1035         * Updates all weather states.
1036         */
1037        protected void updateWeather()
1038        {
1039            boolean var1 = this.isRaining();
1040            super.updateWeather();
1041    
1042            if (var1 != this.isRaining())
1043            {
1044                if (var1)
1045                {
1046                    this.mcServer.getConfigurationManager().sendPacketToAllPlayers(new Packet70GameEvent(2, 0));
1047                }
1048                else
1049                {
1050                    this.mcServer.getConfigurationManager().sendPacketToAllPlayers(new Packet70GameEvent(1, 0));
1051                }
1052            }
1053        }
1054    
1055        /**
1056         * Gets the MinecraftServer.
1057         */
1058        public MinecraftServer getMinecraftServer()
1059        {
1060            return this.mcServer;
1061        }
1062    
1063        /**
1064         * Gets the EntityTracker
1065         */
1066        public EntityTracker getEntityTracker()
1067        {
1068            return this.theEntityTracker;
1069        }
1070    
1071        public PlayerManager getPlayerManager()
1072        {
1073            return this.thePlayerManager;
1074        }
1075    
1076        public Teleporter func_85176_s()
1077        {
1078            return this.field_85177_Q;
1079        }
1080    
1081        public File getChunkSaveLocation()
1082        {
1083            return ((AnvilChunkLoader)theChunkProviderServer.currentChunkLoader).chunkSaveLocation;
1084        }
1085    }