Boss moves away from player and attacks from distance when player stands still!

[mirakuru6356 0]

Hello everyone,

I'm experiencing a strange issue with bosses on my Metin2 source.

When I spawn a boss and attack it, everything seems normal at first. However, if I stop moving and stay completely still, the boss starts moving away from my character while continuing to attack me from a distance.

As soon as I move even a little, the boss immediately comes back to my position and continues fighting normally. If I stop moving again, the same behavior repeats.

What I've noticed:

The issue only happens when the player stands still.

The boss moves away from the player instead of staying close.

The boss can still deal damage while being visually far away.

Moving the character causes the boss to return to the correct position.

It happens with bosses, not only with one specific monster.

Has anyone experienced something similar before?

Could this be related to:

Sync packets?

Position synchronization?

Chase/Follow AI logic?

Movement prediction?

Attack range calculations?

Any suggestions on where I should start debugging would be greatly appreciated.

Thank you!

 

https://metin2.download/video/Yw3gw1nNBDY45302Nbke9AYdLwlRbKLj/.mp4

Edited June 10 by Metin2 Dev International
Core X - External 2 Internal

[Syreldar 2739]

The motion files for the boss on the serverside probably got a degree of knockback, while your clientsided ones don't.

The server thinks you moved, so the boss moves with you, but doesn't reflect the change on the client because of this mismatch.

When you move, you refresh your position, so the boss comes back and the cycle repeats itself.

[LordMaster 1]

I know only this bug when you play with Mental Warrior and your Strong Body is activated. This fix is from Marty 

In 

void CActorInstance::__Push(int x, int y)

search for 

	if (IsResistFallen())
		return;

delete it there and paste it after

 

SetBlendingPosition(c_v3Dst);

 

It should look like this

Edited June 15 by Metin2 Dev International
Core X - External 2 Internal