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[Solved]Twitching entity.


Naiten

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Hello. I've fixed problems with my entities being jumping, but now i have antoher problem. Whenever i try to move the wagon, it runs some distance and then teleports to the place i've spawned it at. Any help?

 

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Hello. I've fixed problems with my entities being jumping, but now i have antoher problem. Whenever i try to move the wagon, it runs some distance and then teleports to the place i've spawned it at. Any help?

 

It teleports back to where it started because you only moved it client side.  When it later got a position packet from the server, it moved to those coordinates.

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It teleports back to where it started because you only moved it client side.  When it later got a position packet from the server, it moved to those coordinates.

I bet no, because on flat grass it runs well. However on my rails (0.375 m high) and on half-blocks everything is not so good...

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So, anyone?

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This is just weird. If i put the loco on rails, it twithes, if i put it on the ground, it runs well. But if i put it on the ground and then it runs on the rails it also runs well o_O

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When you update the entity's position client-side for rendering, do you do any rounding?

I've said, this is not the problem of server-client, because it lags only on certain blocks like mine rails and half-slabs...

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Also, i've fixed my rails block collision, but this gave no effect on the locomotive... It still runs good on earth and bad on rails -.-

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Here's the video showing the bug. And i repeat once again, this is problem of collision thing, not server-client system...

http://www.youtube.com/watch?v=p0mmf_x78l4

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I understand you think so, but anything the client see's is purely what the server tells it to see. If it's twitching, it could be that your rendering code told it to twitch, which I seriously doubt since I think you know what you're doing in that regard, or because it's on the rails, the server is sending asynchronous update packets with partially invalid position coordinates.

 

The fact that it does this on HalfSlabs as well makes it seem like there is a rounding issue in where it's trying to set it's position- the entity wants to be lower, the server pushes it up, and it twitches. That's just my theory, anyway.

Have a modding question? PM me and hopefully I'll be able to help. Good at 2d Pixel Art? We need your help!  http://www.minecraftforum.net/topic/1806355-looking-for-2d-pixel-artist/

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So, where do you think the error is? It uses standard pushOutOfBLocks() and i think it's somewhere there... And i can't even imagine why it rides rails well if strted on ground -.-

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To be frank I just don't really know- it's only a suspicion. You should add in a lot of debug statements to make sure that every variable is what you think it is- and if it's not, that might be your issue. Try setting motionY to 0, just as a debug. See what happens, I guess? Sorry I'm not much help atm.

Have a modding question? PM me and hopefully I'll be able to help. Good at 2d Pixel Art? We need your help!  http://www.minecraftforum.net/topic/1806355-looking-for-2d-pixel-artist/

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This saved my mental health.

if(underBlockId < 1 && underBlockId != RoW.rails.blockID && underBlockId != RoW.railGag.blockID){
   addVelocity(0, -0.04, 0);
}
if(underBlockId == RoW.rails.blockID || underBlockId == RoW.railGag.blockID){
   setPosition(posX, MathHelper.floor_double(posY) + 0.38, posZ); // 0.38 = my rail block height (0.375) + little spare space.
}

If i helped you, don't forget pressing "Thank You" button. Thanks for your time.

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