From fb1ff42a609be89dd00920b6840cd7b829c4f021 Mon Sep 17 00:00:00 2001
From: Andrey Akhmichin <15944199+nekonomicon@users.noreply.github.com>
Date: Fri, 26 Jan 2024 20:54:27 +0500
Subject: [PATCH] HL 25th anniversary update rpg rocket changes.

---
 dlls/rpg.cpp   | 42 ++++++++++++++++++++++++++++++++++--------
 dlls/weapons.h |  4 +++-
 2 files changed, 37 insertions(+), 9 deletions(-)

diff --git a/dlls/rpg.cpp b/dlls/rpg.cpp
index c81e6246..271a9d7c 100644
--- a/dlls/rpg.cpp
+++ b/dlls/rpg.cpp
@@ -116,6 +116,25 @@ CRpgRocket *CRpgRocket::CreateRpgRocket( Vector vecOrigin, Vector vecAngles, CBa
 	return pRocket;
 }
 
+void CRpgRocket::Explode( TraceResult *pTrace, int bitsDamageType )
+{
+	if( CRpg *pLauncher = GetLauncher())
+	{
+		// my launcher is still around, tell it I'm dead.
+		pLauncher->m_cActiveRockets--;
+		m_hLauncher = 0;
+	}
+
+	STOP_SOUND( edict(), CHAN_VOICE, "weapons/rocket1.wav" );
+
+	CGrenade::Explode( pTrace, bitsDamageType );
+}
+
+CRpg *CRpgRocket::GetLauncher( void )
+{
+	return (CRpg*)( (CBaseEntity*)m_hLauncher );
+}
+
 //=========================================================
 //=========================================================
 void CRpgRocket::Spawn( void )
@@ -150,10 +169,11 @@ void CRpgRocket::Spawn( void )
 //=========================================================
 void CRpgRocket::RocketTouch( CBaseEntity *pOther )
 {
-	if( CRpg* pLauncher = (CRpg*)( (CBaseEntity*)( m_hLauncher ) ) )
+	if( CRpg *pLauncher = GetLauncher())
 	{
 		// my launcher is still around, tell it I'm dead.
 		pLauncher->m_cActiveRockets--;
+		m_hLauncher = 0;
 	}
 
 	STOP_SOUND( edict(), CHAN_VOICE, "weapons/rocket1.wav" );
@@ -264,17 +284,23 @@ void CRpgRocket::FollowThink( void )
 		}
 		pev->velocity = pev->velocity * 0.2f + vecTarget * flSpeed * 0.798f;
 		if( pev->waterlevel == 0 && pev->velocity.Length() < 1500.0f )
-		{
-			if( CRpg *pLauncher = (CRpg*)( (CBaseEntity*)( m_hLauncher ) ) )
-			{
-				// my launcher is still around, tell it I'm dead.
-				pLauncher->m_cActiveRockets--;
-			}
 			Detonate();
-		}
 	}
 	// ALERT( at_console, "%.0f\n", flSpeed );
 
+	if( CRpg *pLauncher = GetLauncher())
+	{
+		if( ( pev->origin - pLauncher->pev->origin ).Length() > 8192 || gpGlobals->time - m_flIgniteTime > 6.0f )
+		{
+			// my launcher is still around, tell it I'm dead.
+			pLauncher->m_cActiveRockets--;
+			m_hLauncher = 0;
+		}
+	}
+
+	if( UTIL_PointContents( pev->origin ) == CONTENTS_SKY )
+		Detonate();
+
 	pev->nextthink = gpGlobals->time + 0.1f;
 }
 #endif
diff --git a/dlls/weapons.h b/dlls/weapons.h
index e4966125..ca1ec3b7 100644
--- a/dlls/weapons.h
+++ b/dlls/weapons.h
@@ -37,7 +37,7 @@ public:
 	static void UseSatchelCharges( entvars_t *pevOwner, SATCHELCODE code );
 
 	void Explode( Vector vecSrc, Vector vecAim );
-	void Explode( TraceResult *pTrace, int bitsDamageType );
+	virtual void Explode( TraceResult *pTrace, int bitsDamageType );
 	void EXPORT Smoke( void );
 
 	void EXPORT BounceTouch( CBaseEntity *pOther );
@@ -723,6 +723,8 @@ public:
 	void EXPORT IgniteThink( void );
 	void EXPORT RocketTouch( CBaseEntity *pOther );
 	static CRpgRocket *CreateRpgRocket( Vector vecOrigin, Vector vecAngles, CBaseEntity *pOwner, CRpg *pLauncher );
+	void Explode( TraceResult *pTrace, int bitsDamageType );
+	inline CRpg *GetLauncher( void );
 
 	int m_iTrail;
 	float m_flIgniteTime;