Spectate player at center of screen

src/game/client/c_baseplayer.cpp

@@ -736,7 +736,12 @@ bool C_BasePlayer::IsValidObserverTarget(CBaseEntity* target)
 
 	if (player->m_lifeState == LIFE_DEAD || player->m_lifeState == LIFE_DYING)
 	{
+#ifdef NEO
+		constexpr int DEATH_SPEC_TIME = 3.0f; // OGNT switches spectator targets much faster than the DEATH_ANIMATION_TIME
+		if ((player->m_flDeathTime + DEATH_SPEC_TIME) < gpGlobals->curtime)
+#else
 		if ((player->m_flDeathTime + DEATH_ANIMATION_TIME) < gpGlobals->curtime)
+#endif // NEO
 		{
 			return false;	// allow watching until 3 seconds after death to see death animation
 		}

src/game/client/clientmode_shared.cpp

@@ -823,6 +823,47 @@ int ClientModeShared::HandleSpectatorKeyInput( int down, ButtonCode_t keynum, co
 		engine->ClientCmd( "spec_prev" );
 		return 0;
 	}
+#ifdef NEO
+	else if (down && pszCurrentBinding && Q_strcmp(pszCurrentBinding, "+specmouseplayer") == 0)
+	{
+		C_NEO_Player *pNeoPlayer = C_NEO_Player::GetLocalNEOPlayer();
+		if (!pNeoPlayer)
+		{
+			Assert(false);
+			return 0;
+		}
+
+		C_BaseEntity* currentTarget = pNeoPlayer->GetObserverTarget();
+		C_NEO_Player *target = nullptr;
+		float targetDotProduct = -1;
+
+		for (int i = 1; i < gpGlobals->maxClients; i++)
+		{
+			C_NEO_Player* pPlayer = ToNEOPlayer(UTIL_PlayerByIndex(i));
+			if (currentTarget != pPlayer && pNeoPlayer->IsValidObserverTarget(pPlayer) && pPlayer->IsAlive())
+			{
+				Vector vecForward;
+				AngleVectors( pNeoPlayer->EyeAngles(), &vecForward );
+
+				Vector vecToTarget = pPlayer->WorldSpaceCenter() - pNeoPlayer->EyePosition();
+				vecToTarget.NormalizeInPlace();
+				float dotProduct = DotProduct(vecForward, vecToTarget);
+				if (dotProduct > targetDotProduct && dotProduct > 0)
+				{
+					targetDotProduct = dotProduct;
+					target = pPlayer;
+				}
+			}
+		}
+
+		if (target)
+		{
+			engine->ClientCmd( VarArgs("spec_player_entity_number %d", target->entindex()) );
+		}
+
+		return 0;
+	}
+#endif // NEO
 	else if ( down && pszCurrentBinding && Q_strcmp( pszCurrentBinding, "+jump" ) == 0 )
 	{
 		engine->ClientCmd( "spec_mode" );

src/game/client/in_main.cpp

@@ -157,6 +157,7 @@ static	kbutton_t	in_thermoptic;
 static	kbutton_t	in_vision;
 static	kbutton_t	in_spec_next;
 static	kbutton_t	in_spec_prev;
+static	kbutton_t	in_spec_mouse_player;
 #endif
 
 /*
@@ -637,6 +638,9 @@ void IN_SpecNextDown(const CCommand &args) { KeyDown(&in_spec_next, args[1]); }
 void IN_SpecPrevUp(const CCommand &args) { KeyUp(&in_spec_prev, args[1]); }
 void IN_SpecPrevDown(const CCommand &args) { KeyDown(&in_spec_prev, args[1]); }
 
+void IN_SpecMousePlayerDown(const CCommand &args) { KeyUp(&in_spec_mouse_player, args[1]); }
+void IN_SpecMousePlayerUp(const CCommand &args) { KeyDown(&in_spec_mouse_player, args[1]); }
+
 void IN_AimToggle(const CCommand& args)
 {
 	if (::input->KeyState(&in_aim))
@@ -1887,6 +1891,9 @@ static ConCommand endspecnextplayer("-specnextplayer", IN_SpecNextUp);
 
 static ConCommand startspecprevplayer("+specprevplayer", IN_SpecPrevDown);
 static ConCommand endspecprevplayer("-specprevplayer", IN_SpecPrevUp);
+
+static ConCommand startspecmouseplayer("+specmouseplayer", IN_SpecMousePlayerDown);
+static ConCommand endspecmouseplayer("-specmouseplayer", IN_SpecMousePlayerUp);
 #endif
 
 /*

src/game/server/player.cpp

@@ -6951,6 +6951,22 @@ bool CBasePlayer::ClientCommand( const CCommand &args )
 
 		return true;
 	}
+#ifdef NEO
+	else if (stricmp(cmd, "spec_player_entity_number") == 0)
+	{
+		if (GetObserverMode() > OBS_MODE_FIXED && args.ArgC() == 2)
+		{
+			int targetEntIndex = atoi( args[1] );
+			CBasePlayer* target = UTIL_PlayerByIndex(targetEntIndex);
+
+			if (SetObserverTarget( target )) {
+				m_bForcedObserverMode = false;
+				SetObserverMode(OBS_MODE_IN_EYE);
+			}
+		}
+		return true;
+	}
+#endif // NEO
 	else if ( stricmp( cmd, "spec_player" ) == 0 ) // chase next player
 	{
 		if ( GetObserverMode() > OBS_MODE_FIXED && args.ArgC() == 2 )