From b6408ca602c377da163a63cdfec1e0bd2d3d3ead Mon Sep 17 00:00:00 2001
From: NoxMax <50133316+NoxMax@users.noreply.github.com>
Date: Fri, 24 Apr 2026 15:04:40 -0600
Subject: [PATCH] Fix: Prevent infantry auto attack when IsInVehicle (#2319)

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## Pull Request Description
<!-- Describe what this change does and why it is needed -->
While testing vehicle combat in Wintergrasp, I was near two opposing
vehicles. They were right on top of each other, and I was hearing the
sounds of infantry melee attack. It looks like their auto-attack was on.

I had thought the check in
[GenericActions](https://github.com/mod-playerbots/mod-playerbots/blob/0c205b8cef5a541cabe080aaf9653adb25695c40/src/Ai/Base/Actions/GenericActions.cpp#L46)
would prevent that, but I guess we need the extra defence.

Note that IsInVehicle first three parameters are
canControl/canCast/canAttack


## Feature Evaluation
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There isn't vehicle combat scenarios (particularly vehicle on vehicle)
in Playerbots right now that allow for obvious testing. I only learned
about this through testing my unpublished Wintergrasp implementation.
Regardless, the change is simple and the effect on code should be clear.


## Impact Assessment
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- Does this change increase per-bot/per-tick processing or risk scaling
poorly with thousands of bots?
    - - [x] No, not at all
    - - [ ] Minimal impact (**explain below**)
    - - [ ] Moderate impact (**explain below**)



- Does this change modify default bot behavior?
    - - [ ] No
    - - [x] Yes (**explain why**)
No more infantry combat of any kind for drivers.


- Does this change add new decision branches or increase maintenance
complexity?
    - - [x] No
    - - [ ] Yes (**explain below**)



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## Final Checklist

- - [x] Stability is not compromised.
- - [x] Performance impact is understood, tested, and acceptable.
- - [x] Added logic complexity is justified and explained.
- - [x] Any new bot dialogue lines are translated.
- - [x] Documentation updated if needed (Conf comments, WiKi commands).

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---
 src/Ai/Base/Actions/AttackAction.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Ai/Base/Actions/AttackAction.cpp b/src/Ai/Base/Actions/AttackAction.cpp
index af964f360..a537dd218 100644
--- a/src/Ai/Base/Actions/AttackAction.cpp
+++ b/src/Ai/Base/Actions/AttackAction.cpp
@@ -114,6 +114,11 @@ bool AttackAction::Attack(Unit* target, bool /*with_pet*/ /*true*/)
         return false;
     }
 
+    // Infantry attacks are not allowed from vehicles drivers.
+    // Check is needed to stop some auto-attack situations.
+    if (botAI->IsInVehicle() && !botAI->IsInVehicle(false, false, true))
+        return false;
+
     Unit* oldTarget = context->GetValue<Unit*>("current target")->Get();
     bool shouldMelee = bot->IsWithinMeleeRange(target) || botAI->IsMelee(bot);