Monster moving weird when going to loot

[kaninhot004]

rAthena Hash

8cec8ce

Client Date

20220602

Server Mode

Renewal

Result

Stutter.mp4

Spawn 100 poring and kill it.

Relevant Log Output

No response

Expected Result

Monster smooth moving like before.

How to Reproduce

Please see above video.

Official Information

Modifications that may affect results

No response

[Playtester]

This is because on rAthena, we make monsters stop immediately when they lose their target. If we didn't send a "fixpos" packet (this is what teleports the porings to their real position which you perceive as stuttering), then you'd see the Porings move to the cell where the loot was, but they would actually not be there, which would create insane position lag.

I wonder how official servers handle that. It looks like the Poring always stop one they reached the next cell, but what kind of packet is send to the client to tell it that the move path was shortened?

[kaninhot004]

I see.

For method to solve I didn't know any about packet handling. 😵