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1.7.10 How do I Set the Spawn Location of a world

Posted July 5, 201510 yr

I have a WorldType and ChunkGenerator to generate a new world type

the problem is I cant find a way to set the spawn location to where it needs to be

this is what i have found WorldInfo.setSpawnPosition() is call by WorldServer.createSpawnPosition() during initialization

I havn't been able to find anywhere in code I can set it myself after this point and before the player is spawned in single player mode

I tried teleporting the player when first logging in but this sometimes causes fetal errors

this is the trace from where i trapped during WorldServer.createSpawnPosition()

at me.el.LoonTerra.BaseChunkProvider.provideChunk(BaseChunkProvider.java:56)
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:192)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:151)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:121)
at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:223)
at net.minecraft.world.World.getChunkFromChunkCoords(World.java:485)
at net.minecraft.world.World.getBlock(World.java:390)
at net.minecraft.world.World.isAirBlock(World.java:413)
at net.minecraft.world.World.getTopBlock(World.java:374)
at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:97)
at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:807)
at net.minecraft.world.WorldServer.initialize(WorldServer.java:771)
at net.minecraft.world.World.<init>(World.java:299)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:104)
at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:63)
at net.minecraft.server.integrated.IntegratedServer.startServer(IntegratedServer.java:96)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:455)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:762)

any ideas would be appreciated

Quote

July 5, 201510 yr

Author

thankyou, makes sense but unfortunatly WorldProvider isnt being overriden , but ill look and see if i can override it

Quote

July 5, 201510 yr

Author

the only classes i'm overiding are WorldType and IChunkProvider

WorldType is use by the internal world generator to generate DEFAULT ,FLAT ,AMPLIFIED ,LARGE_BIOMES and DEFAULT_1_1 Types

by overriding this I can set the main world type to My own generated world

Currently i have 2 Islands and SkyBlock, selectable at world creation time in single player

Note. these are Dimension 0, not additional Dimentions

Quote

July 5, 201510 yr

Author

The WorldProvider's class is WorldProviderSurface

and I cant find any way to Override it

Quote

July 5, 201510 yr

One world can have one WorldProvider.

You need to extend it (abstract as diesieben said) and replace normal one ("surface") with yours.

To do replacement you use DimensionManager, code needs to be ran in init or post.

DimensionManager.unregisterDimension(0);
DimensionManager.unregisterProviderType(0);
DimensionManager.registerProviderType(0, MyWorldProvider.class, true);
DimensionManager.registerDimension(0, 0);

Note that this will break compatybility with any world that uses provider overrides.

1.7.10 is no longer supported by forge, you are on your own.

Quote

July 5, 201510 yr

if (!hasNoSky && !isAdventure && net.minecraftforge.common.ForgeModContainer.defaultHasSpawnFuzz)

{

chunkcoordinates.posX += this.worldObj.rand.nextInt(spawnFuzz) - spawnFuzzHalf;

chunkcoordinates.posZ += this.worldObj.rand.nextInt(spawnFuzz) - spawnFuzzHalf;

chunkcoordinates.posY = this.worldObj.getTopSolidOrLiquidBlock(chunkcoordinates.posX, chunkcoordinates.posZ);

}

Set ForgeModContainer.defaultHasSpawnFuzz to false

Edit: Also then set the world spawn with worldInstance.setSpawnLocation(x, y, z)

Quote

July 6, 201510 yr

Author

Overriden WorldProvider (thanks Ernio)

however i got an error when the trying to get the biomes to generate (this only happens when the player spawn where chunks have not been generated and only sometimes)

here is the stacktrace

at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:201) ~[ChunkProviderServer.class:?]
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:151) ~[ChunkProviderServer.class:?]
at net.minecraft.server.management.PlayerManager$PlayerInstance.<init>(PlayerManager.java:411) ~[PlayerManager$PlayerInstance.class:?]
at net.minecraft.server.management.PlayerManager.getOrCreateChunkWatcher(PlayerManager.java:114) ~[PlayerManager.class:?]
at net.minecraft.server.management.PlayerManager.addPlayer(PlayerManager.java:158) ~[PlayerManager.class:?]
at net.minecraft.server.management.ServerConfigurationManager.func_72375_a(ServerConfigurationManager.java:256) ~[serverConfigurationManager.class:?]
at net.minecraft.server.management.ServerConfigurationManager.playerLoggedIn(ServerConfigurationManager.java:314) ~[serverConfigurationManager.class:?]
at net.minecraft.server.management.ServerConfigurationManager.initializeConnectionToPlayer(ServerConfigurationManager.java:174) ~[serverConfigurationManager.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.completeServerSideConnection(NetworkDispatcher.java:173) ~[NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.completeHandshake(NetworkDispatcher.java:446) ~[NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.internal.HandshakeCompletionHandler.channelRead0(HandshakeCompletionHandler.java:17) ~[HandshakeCompletionHandler.class:?]
at cpw.mods.fml.common.network.internal.HandshakeCompletionHandler.channelRead0(HandshakeCompletionHandler.java:11) ~[HandshakeCompletionHandler.class:?]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) ~[simpleChannelInboundHandler.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [MessageToMessageDecoder.class:?]
at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) [MessageToMessageCodec.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [DefaultChannelPipeline.class:?]
at io.netty.channel.embedded.EmbeddedChannel.writeInbound(EmbeddedChannel.java:169) [EmbeddedChannel.class:?]
at cpw.mods.fml.common.network.internal.FMLProxyPacket.processPacket(FMLProxyPacket.java:86) [FMLProxyPacket.class:?]
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:247) [NetworkManager.class:?]
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) [NetworkSystem.class:?]
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:736) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:624) [MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) [integratedServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:495) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:762) [MinecraftServer$2.class:?]
Caused by: java.lang.NullPointerException
at net.minecraft.world.biome.WorldChunkManager.getRainfall(WorldChunkManager.java:88) ~[WorldChunkManager.class:?]
at net.minecraft.world.biome.BiomeCache$Block.<init>(BiomeCache.java:109) ~[biomeCache$Block.class:?]
at net.minecraft.world.biome.BiomeCache.getBiomeCacheBlock(BiomeCache.java:39) ~[biomeCache.class:?]
at net.minecraft.world.biome.BiomeCache.getCachedBiomes(BiomeCache.java:88) ~[biomeCache.class:?]
at net.minecraft.world.biome.WorldChunkManager.getBiomeGenAt(WorldChunkManager.java:183) ~[WorldChunkManager.class:?]
at net.minecraft.world.biome.WorldChunkManager.loadBlockGeneratorData(WorldChunkManager.java:165) ~[WorldChunkManager.class:?]
at me.el.LoonTerra.BaseChunkProvider.provideChunk(BaseChunkProvider.java:54) ~[baseChunkProvider.class:?]
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:192) ~[ChunkProviderServer.class:?]

It appears that it is failing while trying to get rainfall levels

This is how im reading the biome data

protected BiomeGenBase[] getBiomeData(int cx, int cz) {
    return this.worldObj.getWorldChunkManager().loadBlockGeneratorData(this.biomesForGeneration, cx * 16, cz * 16, 16, 16);
}

Quote

July 6, 201510 yr

Author

My Skyblock mod uses a custom chunk generator , but it keeps the original boime map

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1.7.10 How do I Set the Spawn Location of a world

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