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[1.14.4] What is IParticleData


DavidM

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I was looking into particles in 1.14.4 when I found IParticleData.

As far as I can tell from the usage in vanilla, it is a way to sync particles to client via packets.

However, I am unsure if I completely understood it, and have the following questions regarding it:

1. If a particle is client-only, and is only created via client-side renderers (i.e. TESR), does that mean it does not need an implementation of IParticleData?

2. How does one register an implementation of IParticleData to its according particle?

Edited by DavidM

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Definitely not an expert but hope i can help. For clarity there are 4 things that are needed

 

IParticleData, ParticleType<>, Particle & IParticleFactory

 

These are how they relate:

  • When you extend ParticleType<>, it must have a class that implements IParticleData.
  • You need a factory that implements IParticleFactory (I nested it in the Particle class)
  • That factory will be registered during the ParticleFactoryRegisterEvent
  • it's explained in the javadocs but during that event you register the factory in Minecraft.getInstance().particles.registerFactory
  • The IParticleFactory will take a ParticleType<IParticleData> and give back a Particle

The Particle class needs to be client only, you can use @ OnlyIn or use a dist value in the mod bus subscriber for the particle factory.

 

You can aso take a look at BasicParticleType, it skips the need to have a separate class implementing IParticleData.

Edited by Cyborgmas
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Thanks.

 

I looked into the subject a bit more, and my current understanding is the following:

- The registration of particles have not changed much from earlier versions. However, it seems that in 1.14.4 modded particles use the same convention as vanilla particles, and IParticleData is a way to generalize the server's notifying the client of particle spawning.

- IParticleData is used in SSpawnParticlePacket to pass the relevant data of the particle to the client. There also needs to be an implementation of IDeserializer to read and write the content of IParticleData to and from a string (to be used in SSpawnParticlePacket).

Some tips:

Spoiler

Modder Support:

Spoiler

1. Do not follow tutorials on YouTube, especially TechnoVision (previously called Loremaster) and HarryTalks, due to their promotion of bad practice and usage of outdated code.

2. Always post your code.

3. Never copy and paste code. You won't learn anything from doing that.

4. 

Quote

Programming via Eclipse's hotfixes will get you nowhere

5. Learn to use your IDE, especially the debugger.

6.

Quote

The "picture that's worth 1000 words" only works if there's an obvious problem or a freehand red circle around it.

Support & Bug Reports:

Spoiler

1. Read the EAQ before asking for help. Remember to provide the appropriate log(s).

2. Versions below 1.11 are no longer supported due to their age. Update to a modern version of Minecraft to receive support.

 

 

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