Fix crash when +USEing NPCs that have just exited a scripted sequence

CHANGELOG.md

@@ -13,6 +13,7 @@
 * Fixed torch and medic grunts, male assassins and shock troopers continuing to fire for a few seconds after killing the last enemy in an area [#100](https://github.com/SamVanheer/halflife-op4-updated/issues/100) (Thanks Ronin4862 and malortie)
 * Fixed Gonome crashing the game if the player dies while being damaged by Gonome's chest mouth (Thanks malortie)
 * Save and restore allied grunt repel entities to ensure spawned NPCs have correct properties (Thanks malortie)
+* Fixed crash when +USEing NPCs that have just exited a scripted sequence (Thanks malortie)
 
 ## Changes in V1.0.0 Release Candidate 001
 

dlls/COFAllyMonster.cpp

@@ -1363,7 +1363,10 @@ bool COFAllyMonster::CanFollow()
 {
 	if (m_MonsterState == MONSTERSTATE_SCRIPT)
 	{
-		if (!m_pCine->CanInterrupt())
+		// It's possible for m_MonsterState to still be MONSTERSTATE_SCRIPT when the script has already ended.
+		// We'll treat a null pointer as an uninterruptable script and wait for the NPC to change states
+		// before allowing players to make them follow them again.
+		if (!m_pCine || !m_pCine->CanInterrupt())
 			return false;
 	}