I am trying to use a world capability as part of a storage system, but I am not sure how they work. I have tried following examples I have found, but don't know how to properly access it.

I have previously used WorldSaveData, but that method no longer appears to be available in 1.14

Can anybody give me any advice?

46 minutes ago, TehStoneMan said:

Can anybody give me any advice? 

What have you tried?

This is the current state of my source code : https://github.com/TehStoneMan/BetterStorageToo/tree/1.14

 

When trying to access my capability, I get this error:

[17Aug2019 14:00:13.553] [Server thread/INFO] [betterstorage/]: ==== net.minecraftforge.common.capabilities.Capability@5a8110de ====
[17Aug2019 14:00:13.554] [Server thread/ERROR] [net.minecraft.world.chunk.Chunk/]: A TileEntity type io.github.tehstoneman.betterstorage.common.tileentity.TileEntityCrate has thrown an exception trying to write state. It will not persist, Report this to the mod author
java.lang.ClassCastException: net.minecraftforge.common.capabilities.Capability cannot be cast to io.github.tehstoneman.betterstorage.common.world.storage.CrateStorage
	at io.github.tehstoneman.betterstorage.common.tileentity.TileEntityCrate.getCrateStackHandler(TileEntityCrate.java:93) ~[?:?]
	at io.github.tehstoneman.betterstorage.common.tileentity.TileEntityCrate.getNumCrates(TileEntityCrate.java:316) ~[?:?]
	at io.github.tehstoneman.betterstorage.common.tileentity.TileEntityCrate.write(TileEntityCrate.java:389) ~[?:?]
	at net.minecraft.world.chunk.Chunk.func_223134_j(Chunk.java:432) ~[?:?]
	at net.minecraft.world.chunk.storage.ChunkSerializer.write(ChunkSerializer.java:303) ~[?:?]
	at net.minecraft.world.server.ChunkManager.func_219229_a(ChunkManager.java:674) ~[?:?]
	at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source) [?:1.8.0_211]
	at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source) [?:1.8.0_211]
	at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) [?:1.8.0_211]
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source) [?:1.8.0_211]
	at java.util.stream.AbstractPipeline.copyInto(Unknown Source) [?:1.8.0_211]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) [?:1.8.0_211]
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source) [?:1.8.0_211]
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source) [?:1.8.0_211]
	at java.util.stream.AbstractPipeline.evaluate(Unknown Source) [?:1.8.0_211]
	at java.util.stream.ReferencePipeline.forEach(Unknown Source) [?:1.8.0_211]
	at net.minecraft.world.server.ChunkManager.save(ChunkManager.java:333) [?:?]
	at net.minecraft.world.server.ServerChunkProvider.save(SourceFile:319) [?:?]
	at net.minecraft.world.server.ServerWorld.save(ServerWorld.java:746) [?:?]
	at net.minecraft.server.MinecraftServer.save(MinecraftServer.java:513) [?:?]
	at net.minecraft.server.MinecraftServer.stopServer(MinecraftServer.java:553) [?:?]
	at net.minecraft.server.integrated.IntegratedServer.stopServer(IntegratedServer.java:210) [?:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:661) [?:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]