[1.8] Synchronizing custom Movement

[meneken17]

hey guys

 

I'm new to minecraft modding and building a rollercoaster mod.

The movement it based on quaternions which are store in the TileEntitys of the rail and in the wagon entity.

 

The coaster wagon is spawned by right clicking with an item on the rail.

The problem is that an (as it should be) server-side spawned wagon mainly moves on horizontal lines, jumps to the next position and is upside down the whole time.

 

For testing I've spawned a wagon on client side (I know it's wrong) and it moves completely fine and smooth.

 

So my question is now, do I have to take care of my whole movement with custom Packets or the DataWatcher or is there an easier way?

[Ernio]

Why can't you move entity on both sides? TileEntity/Entity should be readable for both sides, so as long as entity's movement has reference to it you can use it on client side and move client side entity. Same code = same movement on both sides and in case of desyncho - server will correct position (as it does for all entities).

 

Unless I am missing you point:

What do you mean: "is upside down"?

[Draco18s]

(as it does for all entities).

 

*Except boats.

[meneken17]

yeah. thats pretty much what I thought, too.

 

I have removed the side check on spawning and captured this.

 

https://dl.dropboxusercontent.com/u/77974524/2015-04-06_22.47.55.png[/img]

 

The upper one is the client-side one.

The one below it the server-side one. It is set correct on the server (internal), but it gives some crappy informations to the client.

[Draco18s]

Then your descriptive packet for the entity is bad.

[meneken17]

I was looking for something like this. Where can I implement this?

[Ernio]

If your Entity holds data that is directly changing movement:

- If data is set once: IAdditionalSpawnData

- If data is small, but every tick: DataWatcher

- If data is bigger use IMessage and IMessageHandler

 

 

[N247S]

I know that this isn't the right place but I want to say this,

Eventhough I can't help you.

I still think that this mod(idea) is awesome!

I'm verry curious what the end product will be.

[meneken17]

Its been a while but now i have some time again.

 

So your answers throw up more questions.

 

1) My whole movement logic is some calculation based on the values of the TileEntitys, which are set once and dont change after.

So my first thought was that server and client should probably do the same calcualtion with the same result.

 

2) Descriptor Packet. Is there some packet method to send the data, like those in the TileEntity class?

 

3) IAdditionalSpawnData. What kind of thing is this?

Google has 3 results that contains this word. One is this post. I cant find a thing called like this in my whole workspace.

[Ernio]

1. If your TileEntity's values are set only once you shouldn't create relation Entity-TileEntity, this is not a smart design. Correct me if I am wrong - what you want: You spawn cart into world, cart pulls values from some TileEntity (values are not changed), then based on those values you make movement - do those values EVER change?

 

2. Yes, I alredy told you 3 ways to send data (previous post). Here is long tut:

http://www.minecraftforum.net/forums/mapping-and-modding/mapping-and-modding-tutorials/2137055-1-7-x-1-8-customizing-packet-handling-with

 

3. Sorry, it's IEntityAdditionalSpawnData, you implement it to Entity and write stuff straight into spawn packet. Spawn packet is one that is sent from server to client when server tells client to spawn entity that will be mirror of server's entity.

 

[meneken17]

Thank you

the IEntityAdditionalSpawnData was key. Now it works (almost) fine.