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game/server/cstrike/bot/cs_bot_event_player.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+// Author: Michael S. Booth (mike@turtlerockstudios.com), 2003
+
+#include "cbase.h"
+#include "cs_gamerules.h"
+#include "KeyValues.h"
+
+#include "cs_bot.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnPlayerDeath( IGameEvent *event )
+{
+	if ( !IsAlive() )
+		return;
+
+	// don't react to our own events
+	CBasePlayer *player = UTIL_PlayerByUserId( event->GetInt( "userid" ) );
+	if ( player == this )
+		return;
+
+	Vector playerOrigin = (player) ? GetCentroid( player ) : Vector( 0, 0, 0 );
+
+	CBasePlayer *other = UTIL_PlayerByUserId( event->GetInt( "attacker" ) );
+	CBasePlayer *victim = player;
+
+	CBasePlayer *killer = (other && other->IsPlayer()) ? static_cast<CBasePlayer *>( other ) : NULL;
+
+	// if the human player died in the single player game, tell the team
+	if (CSGameRules()->IsCareer() && victim && !victim->IsBot() && victim->GetTeamNumber() == GetTeamNumber())
+	{
+		GetChatter()->Say( "CommanderDown", 20.0f );
+	}
+
+	// keep track of the last player we killed
+	if (killer == this)
+	{
+		m_lastVictimID = victim ? victim->entindex() : 0;
+	}
+
+	// react to teammate death
+	if (victim && victim->GetTeamNumber() == GetTeamNumber())
+	{
+		// note time of death
+		m_friendDeathTimestamp = gpGlobals->curtime;
+
+		// chastise friendly fire from humans
+		if (killer && !killer->IsBot() && killer->GetTeamNumber() == GetTeamNumber() && killer != this)
+		{
+			GetChatter()->KilledFriend();
+		}
+
+		if (IsAttacking())
+		{
+			if (GetTimeSinceLastSawEnemy() > 0.4f)
+			{
+				PrintIfWatched( "Rethinking my attack due to teammate death\n" );
+
+				// allow us to sneak past windows, doors, etc
+				IgnoreEnemies( 1.0f );
+
+				// move to last known position of enemy - this could cause us to flank if 
+				// the danger has changed due to our teammate's recent death
+				SetTask( MOVE_TO_LAST_KNOWN_ENEMY_POSITION, GetBotEnemy() );
+				MoveTo( GetLastKnownEnemyPosition() );
+				return;
+			}
+		}
+		else	// not attacking
+		{
+			//
+			// If we just saw a nearby friend die, and we haven't yet acquired an enemy
+			// automatically acquire our dead friend's killer
+			//
+			if (GetDisposition() == ENGAGE_AND_INVESTIGATE || GetDisposition() == OPPORTUNITY_FIRE)
+			{
+				CBasePlayer *other = UTIL_PlayerByUserId( event->GetInt( "attacker" ) );
+
+				// check that attacker is an enemy (for friendly fire, etc)
+				if (other && other->IsPlayer())
+				{
+					CCSPlayer *killer = static_cast<CCSPlayer *>( other );
+					if (killer->GetTeamNumber() != GetTeamNumber())
+					{
+						// check if we saw our friend die - dont check FOV - assume we're aware of our surroundings in combat
+						// snipers stay put
+						if (!IsSniper() && IsVisible( playerOrigin ))
+						{
+							// people are dying - we should hurry
+							Hurry( RandomFloat( 10.0f, 15.0f ) );
+
+							// if we're hiding with only our knife, be a little more cautious
+							const float knifeAmbushChance = 50.0f;
+							if (!IsHiding() || !IsUsingKnife() || RandomFloat( 0, 100 ) < knifeAmbushChance)
+							{
+								PrintIfWatched( "Attacking our friend's killer!\n" );
+								Attack( killer );
+								return;
+							}
+						}
+
+						// if friend was far away and we haven't seen an enemy in awhile, go to where our friend was killed
+						const float longHidingTime = 20.0f;
+						if (IsHunting() || IsInvestigatingNoise() || (IsHiding() && GetTask() != FOLLOW && GetHidingTime() > longHidingTime))
+						{
+							const float someTime = 10.0f;
+							const float farAway = 750.0f;
+							if (GetTimeSinceLastSawEnemy() > someTime && (playerOrigin - GetAbsOrigin()).IsLengthGreaterThan( farAway ))
+							{
+								PrintIfWatched( "Checking out where our friend was killed\n" );
+								MoveTo( playerOrigin, FASTEST_ROUTE );
+								return;
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+	else  // an enemy was killed
+	{
+		// forget our current noise - it may have come from the now dead enemy
+		ForgetNoise();
+
+		if (killer && killer->GetTeamNumber() == GetTeamNumber())
+		{
+			// only chatter about enemy kills if we see them occur, and they were the last one we see
+			if (GetNearbyEnemyCount() <= 1)
+			{
+				// report if number of enemies left is few and we killed the last one we saw locally
+				GetChatter()->EnemiesRemaining();
+
+				Vector victimOrigin = (victim) ? GetCentroid( victim ) : Vector( 0, 0, 0 );
+				if (IsVisible( victimOrigin, CHECK_FOV ))
+				{						
+					// congratulate teammates on their kills
+					if (killer && killer != this)
+					{
+						float delay = RandomFloat( 2.0f, 3.0f );
+						if (killer->IsBot())
+						{
+							if (RandomFloat( 0.0f, 100.0f ) < 40.0f)
+								GetChatter()->Say( "NiceShot", 3.0f, delay );
+						}
+						else
+						{
+							// humans get the honorific
+							if (CSGameRules()->IsCareer())
+								GetChatter()->Say( "NiceShotCommander", 3.0f, delay );
+							else
+								GetChatter()->Say( "NiceShotSir", 3.0f, delay );
+						}
+					}
+				}
+			}
+		}
+	}
+}
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnPlayerRadio( IGameEvent *event )
+{
+	if ( !IsAlive() )
+		return;
+
+	// don't react to our own events
+	CCSPlayer *player = ToCSPlayer( UTIL_PlayerByUserId( event->GetInt( "userid" ) ) );
+	if ( player == this )
+		return;
+
+	//
+	// Process radio events from our team
+	//
+	if (player && player->GetTeamNumber() == GetTeamNumber() )
+	{
+		/// @todo Distinguish between radio commands and responses
+		RadioType radioEvent = (RadioType)event->GetInt( "slot" );
+
+		if (radioEvent != RADIO_INVALID && radioEvent != RADIO_AFFIRMATIVE && radioEvent != RADIO_NEGATIVE && radioEvent != RADIO_REPORTING_IN)
+		{
+			m_lastRadioCommand = radioEvent;
+			m_lastRadioRecievedTimestamp = gpGlobals->curtime;
+			m_radioSubject = player;
+			m_radioPosition = GetCentroid( player );
+		}
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnPlayerFallDamage( IGameEvent *event )
+{
+	if ( !IsAlive() )
+		return;
+
+	// don't react to our own events
+	CBasePlayer *player = UTIL_PlayerByUserId( event->GetInt( "userid" ) );
+	if ( player == this )
+		return;
+
+	OnAudibleEvent( event, player, 1100.0f, PRIORITY_LOW, false ); // player_falldamage
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnPlayerFootstep( IGameEvent *event )
+{
+	if ( !IsAlive() )
+		return;
+
+	// don't react to our own events
+	CBasePlayer *player = UTIL_PlayerByUserId( event->GetInt( "userid" ) );
+	if ( player == this )
+		return;
+
+	OnAudibleEvent( event, player, 1100.0f, PRIORITY_LOW, false, IS_FOOTSTEP ); // player_footstep
+}
+
+