1

game/server/cstrike/bot/cs_bot_event.cpp

@@ -0,0 +1,427 @@
+//========= 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"
+
+//--------------------------------------------------------------------------------------------------------------
+/**
+ * Checks if the bot can hear the event
+ */
+void CCSBot::OnAudibleEvent( IGameEvent *event, CBasePlayer *player, float range, PriorityType priority, bool isHostile, bool isFootstep, const Vector *actualOrigin )
+{
+	/// @todo Listen to non-player sounds
+	if (player == NULL)
+		return;
+
+	// don't pay attention to noise that friends make
+	if (!IsEnemy( player ))
+		return;
+
+	Vector playerOrigin = GetCentroid( player );
+	Vector myOrigin = GetCentroid( this );
+
+	// If the event occurs far from the triggering player, it may override the origin
+	if ( actualOrigin )
+	{
+		playerOrigin = *actualOrigin;
+	}
+
+	// check if noise is close enough for us to hear
+	const Vector *newNoisePosition = &playerOrigin;
+	float newNoiseDist = (myOrigin - *newNoisePosition).Length();
+	if (newNoiseDist < range)
+	{
+		// we heard the sound
+		if ((IsLocalPlayerWatchingMe() && cv_bot_debug.GetInt() == 3) || cv_bot_debug.GetInt() == 4)
+		{
+			PrintIfWatched( "Heard noise (%s from %s, pri %s, time %3.1f)\n", 
+											(FStrEq( "weapon_fire", event->GetName() )) ? "Weapon fire " : "",
+											(player) ? player->GetPlayerName() : "NULL",
+											(priority == PRIORITY_HIGH) ? "HIGH" : ((priority == PRIORITY_MEDIUM) ? "MEDIUM" : "LOW"),
+											gpGlobals->curtime );
+		}
+
+		// should we pay attention to it
+		// if noise timestamp is zero, there is no prior noise
+		if (m_noiseTimestamp > 0.0f)
+		{
+			// only overwrite recent sound if we are louder (closer), or more important - if old noise was long ago, its faded
+			const float shortTermMemoryTime = 3.0f;
+			if (gpGlobals->curtime - m_noiseTimestamp < shortTermMemoryTime)
+			{
+				// prior noise is more important - ignore new one
+				if (priority < m_noisePriority)
+					return;
+
+				float oldNoiseDist = (myOrigin - m_noisePosition).Length();
+				if (newNoiseDist >= oldNoiseDist)
+					return;
+			}
+		}
+
+		// find the area in which the noise occured
+		/// @todo Better handle when noise occurs off the nav mesh
+		/// @todo Make sure noise area is not through a wall or ceiling from source of noise
+		/// @todo Change GetNavTravelTime to better deal with NULL destination areas
+		CNavArea *noiseArea = TheNavMesh->GetNearestNavArea( *newNoisePosition );
+		if (noiseArea == NULL)
+		{
+			PrintIfWatched( "  *** Noise occurred off the nav mesh - ignoring!\n" );
+			return;
+		}
+
+		m_noiseArea = noiseArea;
+
+		// remember noise priority
+		m_noisePriority = priority;
+
+		// randomize noise position in the area a bit - hearing isn't very accurate
+		// the closer the noise is, the more accurate our placement
+		/// @todo Make sure not to pick a position on the opposite side of ourselves.
+		const float maxErrorRadius = 400.0f;
+		const float maxHearingRange = 2000.0f;
+		float errorRadius = maxErrorRadius * newNoiseDist/maxHearingRange;
+
+		m_noisePosition.x = newNoisePosition->x + RandomFloat( -errorRadius, errorRadius );
+		m_noisePosition.y = newNoisePosition->y + RandomFloat( -errorRadius, errorRadius );
+
+		// note the *travel distance* to the noise
+		m_noiseTravelDistance = GetTravelDistanceToPlayer( (CCSPlayer *)player );
+
+		// make sure noise position remains in the same area
+		m_noiseArea->GetClosestPointOnArea( m_noisePosition, &m_noisePosition );
+
+		// note when we heard the noise
+		m_noiseTimestamp = gpGlobals->curtime;
+
+		// if we hear a nearby enemy, become alert
+		const float nearbyNoiseRange = 1000.0f;
+		if (m_noiseTravelDistance < nearbyNoiseRange && m_noiseTravelDistance > 0.0f)
+		{
+			BecomeAlert();
+		}
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnHEGrenadeDetonate( 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, 99999.0f, PRIORITY_HIGH, true ); // hegrenade_detonate
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnFlashbangDetonate( 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, 1000.0f, PRIORITY_LOW, true ); // flashbang_detonate
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnSmokeGrenadeDetonate( 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, 1000.0f, PRIORITY_LOW, true ); // smokegrenade_detonate
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnGrenadeBounce( 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, 500.0f, PRIORITY_LOW, true ); // grenade_bounce
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnBulletImpact( IGameEvent *event )
+{
+	if ( !IsAlive() )
+		return;
+
+	// don't react to our own events
+	CBasePlayer *player = UTIL_PlayerByUserId( event->GetInt( "userid" ) );
+	if ( player == this )
+		return;
+
+	// Construct an origin for the sound, since it can be far from the originating player
+	Vector actualOrigin;
+	actualOrigin.x = event->GetFloat( "x", 0.0f );
+	actualOrigin.y = event->GetFloat( "y", 0.0f );
+	actualOrigin.z = event->GetFloat( "z", 0.0f );
+
+	/// @todo Ignoring bullet impact events for now - we dont want bots to look directly at them!
+	//OnAudibleEvent( event, player, 1100.0f, PRIORITY_MEDIUM, true, false, &actualOrigin ); // bullet_impact
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnBreakProp( 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_MEDIUM, true ); // break_prop
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnBreakBreakable( 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_MEDIUM, true ); // break_glass
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnDoorMoving( 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_MEDIUM, false ); // door_moving
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnHostageFollows( IGameEvent *event )
+{
+	if ( !IsAlive() )
+		return;
+
+	// don't react to our own events
+	CBasePlayer *player = UTIL_PlayerByUserId( event->GetInt( "userid" ) );
+	if ( player == this )
+		return;
+
+	// player_follows needs a player
+	if (player == NULL)
+		return;
+
+	// don't pay attention to noise that friends make
+	if (!IsEnemy( player ))
+		return;
+
+	Vector playerOrigin = GetCentroid( player );
+	Vector myOrigin = GetCentroid( this );
+	const float range = 1200.0f;
+
+	// this is here so T's not only act on the noise, but look at it, too
+	if (GetTeamNumber() == TEAM_TERRORIST)
+	{
+		// make sure we can hear the noise
+		if ((playerOrigin - myOrigin).IsLengthGreaterThan( range ))
+			return;
+
+		// tell our teammates that the hostages are being taken
+		GetChatter()->HostagesBeingTaken();
+
+		// only move if we hear them being rescued and can't see any hostages
+		if (GetGameState()->GetNearestVisibleFreeHostage() == NULL)
+		{			
+			// since we are guarding the hostages, presumably we know where they are
+			// if we're close enough to "hear" this event, either go to where the event occured,
+			// or head for an escape zone to head them off
+			if (GetTask() != CCSBot::GUARD_HOSTAGE_RESCUE_ZONE)
+			{
+				//const float headOffChance = 33.3f;
+				if (true) // || RandomFloat( 0, 100 ) < headOffChance)
+				{
+					// head them off at a rescue zone
+					if (GuardRandomZone())
+					{
+						SetTask( CCSBot::GUARD_HOSTAGE_RESCUE_ZONE );
+						SetDisposition( CCSBot::OPPORTUNITY_FIRE );
+						PrintIfWatched( "Trying to beat them to an escape zone!\n" );
+					}
+				}
+				else
+				{
+					SetTask( SEEK_AND_DESTROY );
+					StandUp();
+					Run();
+					MoveTo( playerOrigin, FASTEST_ROUTE );
+				}
+			}
+		}
+	}
+	else
+	{
+		// CT's don't care about this noise
+		return;
+	}
+
+	OnAudibleEvent( event, player, range, PRIORITY_MEDIUM, false ); // hostage_follows
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnRoundEnd( IGameEvent *event )
+{
+	// Morale adjustments happen even for dead players
+	int winner = event->GetInt( "winner" );
+	switch ( winner )
+	{
+	case WINNER_TER:
+		if (GetTeamNumber() == TEAM_CT)
+		{
+			DecreaseMorale();
+		}
+		else
+		{
+			IncreaseMorale();
+		}
+		break;
+
+	case WINNER_CT:
+		if (GetTeamNumber() == TEAM_CT)
+		{
+			IncreaseMorale();
+		}
+		else
+		{
+			DecreaseMorale();
+		}
+		break;
+
+	default:
+		break;
+	}
+
+	m_gameState.OnRoundEnd( event );
+
+	if ( !IsAlive() )
+		return;
+
+	if ( event->GetInt( "winner" ) == WINNER_TER )
+	{
+		if (GetTeamNumber() == TEAM_TERRORIST)
+			GetChatter()->CelebrateWin();
+	}
+	else if ( event->GetInt( "winner" ) == WINNER_CT )
+	{
+		if (GetTeamNumber() == TEAM_CT)
+			GetChatter()->CelebrateWin();
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnRoundStart( IGameEvent *event )
+{
+	m_gameState.OnRoundStart( event );
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnHostageRescuedAll( IGameEvent *event )
+{
+	m_gameState.OnHostageRescuedAll( event );
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+void CCSBot::OnNavBlocked( IGameEvent *event )
+{
+	if ( event->GetBool( "blocked" ) )
+	{
+		unsigned int areaID = event->GetInt( "area" );
+		if ( areaID )
+		{
+			// An area was blocked off.  Reset our path if it has this area on it.
+			for( int i=0; i<m_pathLength; ++i )
+			{
+				const ConnectInfo *info = &m_path[ i ];
+				if ( info->area && info->area->GetID() == areaID )
+				{
+					DestroyPath();
+					return;
+				}
+			}
+		}
+	}
+}
+
+
+//--------------------------------------------------------------------------------------------------------------
+/**
+ * Invoked when bot enters a nav area
+ */
+void CCSBot::OnEnteredNavArea( CNavArea *newArea )
+{
+	// assume that we "clear" an area of enemies when we enter it
+	newArea->SetClearedTimestamp( GetTeamNumber()-1 );
+
+	// if we just entered a 'stop' area, set the flag
+	if ( newArea->GetAttributes() & NAV_MESH_STOP )
+	{
+		m_isStopping = true;
+	}
+
+	/// @todo Flag these areas as spawn areas during load
+	if (IsAtEnemySpawn())
+	{
+		m_hasVisitedEnemySpawn = true;
+	}
+}