From db0b51bf76199ac1a146be321b935053184a8714 Mon Sep 17 00:00:00 2001
From: Blixibon <acj3017@gmail.com>
Date: Thu, 18 Nov 2021 23:23:58 -0600
Subject: [PATCH] Fixed ForcePrimaryFire not working on RPG

---
 sp/src/game/server/hl2/weapon_rpg.cpp | 48 +++++++++++++++++++++++++++
 sp/src/game/server/hl2/weapon_rpg.h   |  3 ++
 2 files changed, 51 insertions(+)

diff --git a/sp/src/game/server/hl2/weapon_rpg.cpp b/sp/src/game/server/hl2/weapon_rpg.cpp
index 750dbf8a..36a60dd1 100644
--- a/sp/src/game/server/hl2/weapon_rpg.cpp
+++ b/sp/src/game/server/hl2/weapon_rpg.cpp
@@ -1589,6 +1589,54 @@ void CWeaponRPG::Operator_HandleAnimEvent( animevent_t *pEvent, CBaseCombatChara
 	}
 }
 
+#ifdef MAPBASE
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CWeaponRPG::Operator_ForceNPCFire( CBaseCombatCharacter *pOperator, bool bSecondary )
+{
+	if ( m_hMissile != NULL )
+		return;
+
+	Vector muzzlePoint, vecShootDir;
+	QAngle	angShootDir;
+	GetAttachment( LookupAttachment( "muzzle" ), muzzlePoint, angShootDir );
+	AngleVectors( angShootDir, &vecShootDir );
+
+	// look for a better launch location
+	Vector altLaunchPoint;
+	if (GetAttachment( "missile", altLaunchPoint ))
+	{
+		// check to see if it's relativly free
+		trace_t tr;
+		AI_TraceHull( altLaunchPoint, altLaunchPoint + vecShootDir * (10.0f*12.0f), Vector( -24, -24, -24 ), Vector( 24, 24, 24 ), MASK_NPCSOLID, NULL, &tr );
+
+		if( tr.fraction == 1.0)
+		{
+			muzzlePoint = altLaunchPoint;
+		}
+	}
+
+	m_hMissile = CMissile::Create( muzzlePoint, angShootDir, pOperator->edict() );
+	m_hMissile->m_hOwner = this;
+
+	// NPCs always get a grace period
+	m_hMissile->SetGracePeriod( 0.5 );
+
+	pOperator->DoMuzzleFlash();
+
+	WeaponSound( SINGLE_NPC );
+
+	// Make sure our laserdot is off
+	m_bGuiding = false;
+
+	if ( m_hLaserDot )
+	{
+		m_hLaserDot->TurnOff();
+	}
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // Purpose: 
 //-----------------------------------------------------------------------------
diff --git a/sp/src/game/server/hl2/weapon_rpg.h b/sp/src/game/server/hl2/weapon_rpg.h
index 3c9dae5f..a536d1c2 100644
--- a/sp/src/game/server/hl2/weapon_rpg.h
+++ b/sp/src/game/server/hl2/weapon_rpg.h
@@ -216,6 +216,9 @@ public:
 	int		WeaponRangeAttack1Condition( float flDot, float flDist );
 
 	void	Operator_HandleAnimEvent( animevent_t *pEvent, CBaseCombatCharacter *pOperator );
+#ifdef MAPBASE
+	void	Operator_ForceNPCFire( CBaseCombatCharacter  *pOperator, bool bSecondary );
+#endif
 	void	StartGuiding( void );
 	void	StopGuiding( void );
 	void	ToggleGuiding( void );