AgentMoveToPosition problem

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Note:
  • Please read the "Update Guide" carefully when updating Arbor.
  • The bugs that we already know are summarized in "Known Issues", so please check once.
  • Please check ReleaseNote and use the latest version if possible before reporting a bug.
  • Unity beta and alpha versions are not supported. Please use the official release version.
  • In principle, defects caused by the introduction of other assets are not supported. If you find a defect, please report it after isolating which asset is the problem.

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注意点:
  • Arborを更新する際は「アップデートガイド」をよく読み行ってください。
  • 既に把握している不具合は「既知の問題」にまとめてありますので一度確認してみてください。
  • 不具合報告をする前にReleaseNoteを確認し、なるべく最新バージョンを使用して下さい。
  • Unityのベータ版およびアルファ版はサポート対象外です。正式リリース版をご利用ください。
  • 他アセット導入による不具合は原則サポート対象外です。不具合を見つけた場合はどのアセットの問題であるか切り分けた上でのご報告をお願いいたします。
frank_li
Posts: 5
Joined: 2023/12/05 08:51

AgentMoveToPosition problem

Post by frank_li »

Hi,
I found some problems with the AgentMoveToPosition behavior. If the agent moves fast from greater distance the Stopping Distance is not respected. The agent is moved then exactly to the given position.
E.g. When I start from a distance like 8 m with a speed of 8 he ignores the distance, but when I start from like 4 m he stops at the given distance.

Secondly, when the agent reaches the border of the navmesh, it stops moving, sets velocity to zero, but the CantMove transition is never called.

Regards
Frank
User avatar
caitsithware
管理人
Posts: 487
Joined: 2015/08/17 12:41

Re: AgentMoveToPosition problem

Post by caitsithware »

The Stopping Distance value is simply set to NavMeshAgent.stoppingDistance.
The CantMove transition will only transition when NavMeshAgent.SetDestination() returns false.

Both seem to be problems due to NavMeshAgent specifications.
Please refer to the AI Navigation package manual for details.
frank_li
Posts: 5
Joined: 2023/12/05 08:51

Re: AgentMoveToPosition problem

Post by frank_li »

caitsithware wrote: 2023/12/14 10:41 The CantMove transition will only transition when NavMeshAgent.SetDestination() returns false.
I've seen that in your code, but this happens when the target position is outside the navmesh, so SetDestination should actually return false. I'll investigate this further.
Thanks for fast reply.
frank_li
Posts: 5
Joined: 2023/12/05 08:51

Re: AgentMoveToPosition problem

Post by frank_li »

OK, it seems that if the destination target is outside the navmesh SetDestination moves the agent to the closest point it can reach, stops then and returns true. So in this case your CantMove will be never called and the agent is stalled.
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caitsithware
管理人
Posts: 487
Joined: 2015/08/17 12:41

Re: AgentMoveToPosition problem

Post by caitsithware »

I see.
Currently, if it does not transition to CantMove even if it is outside the NavMesh range, it will transition to Done when the movement is completed.

As an improvement measure, we will consider adding an option to judge using NavMesh.SamplePosition.

Thank you for your report.
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