[1.12.2][SOLVED] Preventing players from moving

[Sunser]

Hi everyone,

 

I'm trying to prevent unlogged players to do anything. My next challenge is to prevent players from moving, but I can't find anything that satisfies me.
 

I've been looking into EntityPlayerMP class hierachy and I've found the SPacketPlayerPosLook class, which is sent when a player wants to move.

I wonder if there is a way to stop it. I've been looking from a triggered Event when a packet is sent but I did not find.

 

I've also took a look at the doc and tried to understand how things work but I did not find yet a way to achieve it.

I wonder if an override of the

IMessageHandler::onMessage(SomeIMessage req, MessageContext ctx)

method would make it.

Any suggestions ? Thanks for your time.

Edited November 12, 2018 by Sunser

[V0idWa1k3r]

The player movement happens entirely on the client, it just periodically sends packets to the server notifying it of the new position. So your options are either reset the player's position each tick on the server or cancel the input on the client.

[Cadiboo]

Take a look at what the slowness effect does

[Sunser]

2 hours ago, V0idWa1k3r said:

The player movement happens entirely on the client, it just periodically sends packets to the server notifying it of the new position. So your options are either reset the player's position each tick on the server or cancel the input on the client.

I was afraid I have to do this.

2 hours ago, Cadiboo said:

Take a look at what the slowness effect does

Someone already recommanded it in another post. I'll take a look.

 

Thank you both. I will update the post's status as soon as I get something functional.

[Sunser]

I've tried adding a huge Slowness effect to some players. This works great but they can still move by jumping.

So I've been looking for the other idea but I did not find a way to make it being called every tick.

I've been thinking about the onUpdate() method but I haven't found how to link my method and that.

Any suggestions ? Thanks for your time.

[Animefan8888]

1 hour ago, Sunser said:

but I did not find a way to make it being called every tick.

I've been thinking about the onUpdate() method but I haven't found how to link my method and that.

Any suggestions ? Thanks for your time.

Use the PlayerTickEvent.

[Sunser]

That was exactly what I was looking for. I should be fine. Thanks you !

[Guest]

To have very aesthetic method, you can beside of cancelling it on server, handle it on client side by overriding MovementInput class.