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[1.12.2] Summoning Entity fails once a new registry is created

Posted May 3, 20196 yr

Hello everyone,

I created an Entity for my Mod. It works fine, but when I create a new registry inside the NewRegistry-Event, summoning the Entity will result in an error. I have this code:

@GameRegistry.ObjectHolder(WizardItemsMod.MOD_ID)
public static class ENTITY_ENTRIES {
	public static int ID = 0;
	public static EntityEntry FLYING_BROOMSTICK = EntityEntryBuilder.create()
			.entity(EntityFlyingBroomstick.class)
			.tracker(64, 20, true)
			.id("wizarditems:flying_broomstick", ID++)
			.name("flying_broomstick").build();
}
// ...
@SubscribeEvent
public static void registerEntities(RegistryEvent.Register<EntityEntry> event) {
	event.getRegistry().register(ENTITY_ENTRIES.FLYING_BROOMSTICK);
}
@SubscribeEvent
public static void newRegistry(RegistryEvent.NewRegistry event) {
	// when I add the following code, using the Entity will fail
	SPELL_REGISTRY = new RegistryBuilder<Spell>()
			.setName(new ResourceLocation("wizarditems", "magic_spells"))
			.setType(Spell.class)
			.setIDRange(0, SPELLS4REGISTRY.length).create();
}

When I try to summon the Entity using /summon wizarditems:flying_broomstick, I get this error (although the chat displays "Object successfully summoned"):

Spoiler


[Server thread/ERROR] [minecraft/EntityTracker]: "Silently" catching entity tracking error.
net.minecraft.util.ReportedException: Adding entity to track
	at net.minecraft.entity.EntityTracker.track(EntityTracker.java:261) [EntityTracker.class:?]
	at net.minecraftforge.fml.common.registry.EntityRegistry.tryTrackingEntity(EntityRegistry.java:369) [EntityRegistry.class:?]
	at net.minecraft.entity.EntityTracker.track(EntityTracker.java:82) [EntityTracker.class:?]
	at net.minecraft.world.ServerWorldEventHandler.onEntityAdded(ServerWorldEventHandler.java:43) [ServerWorldEventHandler.class:?]
	at net.minecraft.world.World.onEntityAdded(World.java:1326) [World.class:?]
	at net.minecraft.world.WorldServer.onEntityAdded(WorldServer.java:1175) [WorldServer.class:?]
	at net.minecraft.world.World.spawnEntity(World.java:1317) [World.class:?]
	at net.minecraft.world.WorldServer.spawnEntity(WorldServer.java:1121) [WorldServer.class:?]
	at net.minecraft.world.chunk.storage.AnvilChunkLoader.readWorldEntityPos(AnvilChunkLoader.java:606) [AnvilChunkLoader.class:?]
	at net.minecraft.command.server.CommandSummon.execute(CommandSummon.java:109) [CommandSummon.class:?]
	at net.minecraft.command.CommandHandler.tryExecute(CommandHandler.java:126) [CommandHandler.class:?]
	at net.minecraft.command.CommandHandler.executeCommand(CommandHandler.java:98) [CommandHandler.class:?]
	at net.minecraft.network.NetHandlerPlayServer.handleSlashCommand(NetHandlerPlayServer.java:1003) [NetHandlerPlayServer.class:?]
	at net.minecraft.network.NetHandlerPlayServer.processChatMessage(NetHandlerPlayServer.java:979) [NetHandlerPlayServer.class:?]
	at net.minecraft.network.play.client.CPacketChatMessage.processPacket(CPacketChatMessage.java:47) [CPacketChatMessage.class:?]
	at net.minecraft.network.play.client.CPacketChatMessage.processPacket(CPacketChatMessage.java:8) [CPacketChatMessage.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(PacketThreadUtil.java:21) [PacketThreadUtil$1.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_201]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201]
	at net.minecraft.util.Util.runTask(Util.java:53) [Util.class:?]
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:798) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743) [MinecraftServer.class:?]
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192) [IntegratedServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]
Caused by: java.lang.NullPointerException
	at net.minecraftforge.fml.common.network.internal.FMLMessage$EntitySpawnMessage.<init>(FMLMessage.java:148) ~[FMLMessage$EntitySpawnMessage.class:?]
	at net.minecraftforge.fml.common.network.internal.FMLNetworkHandler.getEntitySpawningPacket(FMLNetworkHandler.java:134) ~[FMLNetworkHandler.class:?]
	at net.minecraft.entity.EntityTrackerEntry.createSpawnPacket(EntityTrackerEntry.java:523) ~[EntityTrackerEntry.class:?]
	at net.minecraft.entity.EntityTrackerEntry.updatePlayerEntity(EntityTrackerEntry.java:399) ~[EntityTrackerEntry.class:?]
	at net.minecraft.entity.EntityTrackerEntry.updatePlayerEntities(EntityTrackerEntry.java:509) ~[EntityTrackerEntry.class:?]
	at net.minecraft.entity.EntityTracker.track(EntityTracker.java:235) ~[EntityTracker.class:?]
	... 24 more

When I load an existing world containing the entity, the game crashes:

Spoiler


[Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Exception ticking world
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:837) ~[MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743) ~[MinecraftServer.class:?]
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192) ~[IntegratedServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]
Caused by: java.lang.NullPointerException
	at net.minecraftforge.fml.common.network.internal.FMLMessage$EntitySpawnMessage.<init>(FMLMessage.java:148) ~[FMLMessage$EntitySpawnMessage.class:?]
	at net.minecraftforge.fml.common.network.internal.FMLNetworkHandler.getEntitySpawningPacket(FMLNetworkHandler.java:134) ~[FMLNetworkHandler.class:?]
	at net.minecraft.entity.EntityTrackerEntry.createSpawnPacket(EntityTrackerEntry.java:523) ~[EntityTrackerEntry.class:?]
	at net.minecraft.entity.EntityTrackerEntry.updatePlayerEntity(EntityTrackerEntry.java:399) ~[EntityTrackerEntry.class:?]
	at net.minecraft.entity.EntityTracker.sendLeashedEntitiesInChunk(EntityTracker.java:401) ~[EntityTracker.class:?]
	at net.minecraft.server.management.PlayerChunkMapEntry.sendToPlayers(PlayerChunkMapEntry.java:166) ~[PlayerChunkMapEntry.class:?]
	at net.minecraft.server.management.PlayerChunkMap.tick(PlayerChunkMap.java:212) ~[PlayerChunkMap.class:?]
	at net.minecraft.world.WorldServer.tick(WorldServer.java:236) ~[WorldServer.class:?]
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:831) ~[MinecraftServer.class:?]
	... 4 more

As I said, this only happens when I add the code for creating the new registry. Does anyone know why this is happening, because creating a new registry shouldn't affect Entities??? Am I doing anything wrong?

I found out that this could have something to do with the ModContainer and calling Loader.instance().activeModContainer().

(Interestingly, I had to add my Mod-ID to every registry name (Blocks, Items, ...) once I added the code for the new registry, because suddenly the domain name wasn't automatically set to my Mod's ID.)

Thanks in advance!

Quote

May 3, 20196 yr

49 minutes ago, CubeFlo said:

I found out that this could have something to do with the ModContainer and calling Loader.instance().activeModContainer().

Don't use static intializers. instantinate the registry entries in the appropriate registry event.

Edited May 3, 20196 yr by V0idWa1k3r

Quote

May 3, 20196 yr

Author

Thanks, it should work now. I think I read somewhere it was okay to use static initializers if you added the ObjectHolder-annotation (not only for injecting values). I probably misunderstood this.

Quote

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[1.12.2] Summoning Entity fails once a new registry is created

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