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addScheduledTask

stepsword

By stepsword
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stepsword Stone Miner

stepsword

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Posted

I read on one of these threads to use addScheduledTask to do things "next tick". I call it on the server side, and it seems like the Runnable I give it only gets called on the client.

 

Is this normal?

 

stepsword Stone Miner

stepsword

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Just now, Animefan8888 said:

If you are using Minecraft#addScheduledTask yes. You probably want WorldServer#addScheduledTask

Ahh, thanks so much. I was already trying to come up with silly workarounds like recursively adding tasks til it gets called on the server.

stepsword Stone Miner

stepsword

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32 minutes ago, Animefan8888 said:

Well depending on what you are doing there might be a better way to run code on the next tick.

Still working on that load chunk -> teleport entity bit. I wanted to make sure the chunk was loaded and also have access to the variables in the function that loads the chunk. Maybe its possible without the next-tick bit though, couldn't really find information on whether forceChunk happens right away or queues the chunk up for loading

Animefan8888 Reality Controller

Animefan8888

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6 minutes ago, stepsword said:

Maybe its possible without the next-tick bit though, couldn't really find information on whether forceChunk happens right away or queues the chunk up for loading 

If I'm not mistaken I don't think you should use forceChunk as that is meant for persistent chunk loading. So if you were to just do something along the lines of Chunk chunk = World#getChunkAt(...); Which should load the chunk immediately. Then you can get the entity either from the chunk or from the world. Then move the Entity. And the chunk will unload just like that.

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stepsword Stone Miner

stepsword

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5 minutes ago, Animefan8888 said:

If I'm not mistaken I don't think you should use forceChunk as that is meant for persistent chunk loading. So if you were to just do something along the lines of Chunk chunk = World#getChunkAt(...); Which should load the chunk immediately. Then you can get the entity either from the chunk or from the world. Then move the Entity. And the chunk will unload just like that.

Haha - I learned that the hard way actually, while trying to get the Chunk to check isLoaded() I called getChunkAt().. which loads the chunk. That said, I do have one command planned where it would be useful to keep the chunk loaded so I'm trying to get it working with tickets for this one which will be simpler to test than the other one.

Edited by stepsword
stepsword Stone Miner

stepsword

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As an update: something I think wasn't immediately clear to me is that forceChunk seems to be only for chunks which are already loaded? i.e. if you call forceChunk on an unloaded chunk, nothing happens - you have to load it, then call forceChunk to keep it loaded. I haven't done a lot of testing of this theory to confirm if it's true, but based on the usage of getPersistentChunks() by Forge, I think it's true.

 

This is in the "unload chunks" method. I guess this probably isn't a problem for most people but in case someone stumbles on this later looking for why their forceChunks on a remote location isn't working, it could be because forceChunks only prevents loaded things from being unloaded, so they have to be loaded first for forceChunks to actually work.

  

if (!this.droppedChunksSet.isEmpty())
{
    for (ChunkPos forced : this.world.getPersistentChunks().keySet())
    {
Edited by stepsword

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