From f7250c8288fb6208e1147b23af8ec633c43dcf34 Mon Sep 17 00:00:00 2001
From: A1mDev <33463136+A1mDev@users.noreply.github.com>
Date: Sun, 19 Oct 2025 20:05:19 +0700
Subject: [PATCH] Added missing fields to the `CTakeDamageInfo` class, the
 actual size of the structure is 96 bytes.

- Updated `CTakeDamageInfo` to include new class fields (`m_flRadius` and `m_iDamageVictimIndex`) for clarity and future compatibility.

- Existing hooks remain fully compatible.

- Crashes in SourceMod do not occur due to an incorrect stack, because the structure is always passed by reference or pointer.

- Updating the structure is recommended for cases where manual access to all fields or other special use cases is required.
---
 game/shared/takedamageinfo.cpp | 28 ++++++++++++++---------
 game/shared/takedamageinfo.h   | 42 +++++++++++++++++++++++++++++++++-
 2 files changed, 58 insertions(+), 12 deletions(-)

diff --git a/game/shared/takedamageinfo.cpp b/game/shared/takedamageinfo.cpp
index ccead8c3b..595f1c619 100644
--- a/game/shared/takedamageinfo.cpp
+++ b/game/shared/takedamageinfo.cpp
@@ -16,18 +16,20 @@ ConVar phys_pushscale( "phys_pushscale", "1", FCVAR_REPLICATED );
 
 BEGIN_SIMPLE_DATADESC( CTakeDamageInfo )
 	DEFINE_FIELD( m_vecDamageForce, FIELD_VECTOR ),
-	DEFINE_FIELD( m_vecDamagePosition, FIELD_POSITION_VECTOR),
-	DEFINE_FIELD( m_vecReportedPosition, FIELD_POSITION_VECTOR),
-	DEFINE_FIELD( m_hInflictor, FIELD_EHANDLE),
-	DEFINE_FIELD( m_hAttacker, FIELD_EHANDLE),
-	DEFINE_FIELD( m_hWeapon, FIELD_EHANDLE),
-	DEFINE_FIELD( m_flDamage, FIELD_FLOAT),
-	DEFINE_FIELD( m_flMaxDamage, FIELD_FLOAT),
+	DEFINE_FIELD( m_vecDamagePosition, FIELD_POSITION_VECTOR ),
+	DEFINE_FIELD( m_vecReportedPosition, FIELD_POSITION_VECTOR ),
+	DEFINE_FIELD( m_hInflictor, FIELD_EHANDLE ),
+	DEFINE_FIELD( m_hAttacker, FIELD_EHANDLE ),
+	DEFINE_FIELD( m_hWeapon, FIELD_EHANDLE ),
+	DEFINE_FIELD( m_flDamage, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flMaxDamage, FIELD_FLOAT ),
 	DEFINE_FIELD( m_flBaseDamage, FIELD_FLOAT ),
-	DEFINE_FIELD( m_bitsDamageType, FIELD_INTEGER),
-	DEFINE_FIELD( m_iDamageCustom, FIELD_INTEGER),
-	DEFINE_FIELD( m_iDamageStats, FIELD_INTEGER),
-	DEFINE_FIELD( m_iAmmoType, FIELD_INTEGER),
+	DEFINE_FIELD( m_bitsDamageType, FIELD_INTEGER ),
+	DEFINE_FIELD( m_iDamageCustom, FIELD_INTEGER ),
+	DEFINE_FIELD( m_iDamageStats, FIELD_INTEGER ),
+	DEFINE_FIELD( m_iAmmoType, FIELD_INTEGER ),
+	DEFINE_FIELD( m_flRadius, FIELD_FLOAT ),
+	DEFINE_FIELD( m_iDamageVictimIndex, FIELD_INTEGER ),
 END_DATADESC()
 
 void CTakeDamageInfo::Init( CBaseEntity *pInflictor, CBaseEntity *pAttacker, CBaseEntity *pWeapon, const Vector &damageForce, const Vector &damagePosition, const Vector &reportedPosition, float flDamage, int bitsDamageType, int iCustomDamage )
@@ -56,6 +58,10 @@ void CTakeDamageInfo::Init( CBaseEntity *pInflictor, CBaseEntity *pAttacker, CBa
 	m_vecDamagePosition = damagePosition;
 	m_vecReportedPosition = reportedPosition;
 	m_iAmmoType = -1;
+
+	m_vecDamageDirection = vec3_origin;
+	m_flRadius = 0.0;
+	m_iDamageVictimIndex = 0;
 }
 
 CTakeDamageInfo::CTakeDamageInfo()
diff --git a/game/shared/takedamageinfo.h b/game/shared/takedamageinfo.h
index a7e115353..12e9e0d9d 100644
--- a/game/shared/takedamageinfo.h
+++ b/game/shared/takedamageinfo.h
@@ -80,6 +80,15 @@ class CTakeDamageInfo
 	void			SetAmmoType( int iAmmoType );
 	const char *	GetAmmoName() const;
 
+	Vector			GetDamageDirection() const;
+	void			SetDamageDirection( const Vector &damageDirection );
+
+	float			GetRadius() const;
+	void			SetRadius( float flRadius );
+
+	float			GetVictimIndex() const;
+	void			SetVictimIndex( int iVictimIndex );
+
 	void			Set( CBaseEntity *pInflictor, CBaseEntity *pAttacker, float flDamage, int bitsDamageType, int iKillType = 0 );
 	void			Set( CBaseEntity *pInflictor, CBaseEntity *pAttacker, CBaseEntity *pWeapon, float flDamage, int bitsDamageType, int iKillType = 0 );
 	void			Set( CBaseEntity *pInflictor, CBaseEntity *pAttacker, const Vector &damageForce, const Vector &damagePosition, float flDamage, int bitsDamageType, int iKillType = 0, Vector *reportedPosition = NULL );
@@ -102,7 +111,7 @@ class CTakeDamageInfo
 	Vector			m_vecDamageForce;
 	Vector			m_vecDamagePosition;
 	Vector			m_vecReportedPosition;	// Position players are told damage is coming from
-	Vector			m_vecUnknown;
+	Vector			m_vecDamageDirection;	// The type matches, but I'm not sure about the name; the name is taken from new games.
 	EHANDLE			m_hInflictor;
 	EHANDLE			m_hAttacker;
 	EHANDLE			m_hWeapon;
@@ -113,6 +122,8 @@ class CTakeDamageInfo
 	int				m_iDamageCustom;
 	int				m_iDamageStats;
 	int				m_iAmmoType;			// AmmoType of the weapon used to cause this damage, if any
+	int				m_flRadius;
+	int				m_iDamageVictimIndex;
 
 	DECLARE_SIMPLE_DATADESC();
 };
@@ -331,6 +342,35 @@ inline void CTakeDamageInfo::CopyDamageToBaseDamage()
 	m_flBaseDamage = m_flDamage;
 }
 
+inline Vector CTakeDamageInfo::GetDamageDirection() const
+{
+	return m_vecDamageDirection;
+}
+
+inline void CTakeDamageInfo::SetDamageDirection( const Vector &damageDirection )
+{
+	m_vecDamageDirection = damageDirection;
+}
+
+inline float CTakeDamageInfo::GetRadius() const
+{
+	return m_flRadius;
+}
+
+inline void CTakeDamageInfo::SetRadius( float flRadius )
+{
+	m_flRadius = flRadius;
+}
+
+inline float CTakeDamageInfo::GetVictimIndex() const
+{
+	return m_iDamageVictimIndex;
+}
+
+inline void CTakeDamageInfo::SetVictimIndex( int iVictimIndex )
+{
+	m_iDamageVictimIndex = iVictimIndex;
+}
 
 // -------------------------------------------------------------------------------------------------- //
 // Inlines.