/*** * * Copyright (c) 1996-2001, Valve LLC. All rights reserved. * * This product contains software technology licensed from Id * Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc. * All Rights Reserved. * * This source code contains proprietary and confidential information of * Valve LLC and its suppliers. Access to this code is restricted to * persons who have executed a written SDK license with Valve. Any access, * use or distribution of this code by or to any unlicensed person is illegal. * ****/ /* ===== monsters.cpp ======================================================== Monster-related utility code */ #include "extdll.h" #include "util.h" #include "cbase.h" #include "nodes.h" #include "monsters.h" #include "animation.h" #include "saverestore.h" #include "weapons.h" #include "scripted.h" #include "decals.h" #include "soundent.h" #include "gamerules.h" #define MONSTER_CUT_CORNER_DIST 8 // 8 means the monster's bounding box is contained without the box of the node in WC Vector VecBModelOrigin( entvars_t* pevBModel ); extern DLL_GLOBAL BOOL g_fDrawLines; extern DLL_GLOBAL short g_sModelIndexLaser;// holds the index for the laser beam extern DLL_GLOBAL short g_sModelIndexLaserDot;// holds the index for the laser beam dot extern CGraph WorldGraph;// the world node graph // Global Savedata for monster // UNDONE: Save schedule data? Can this be done? We may // lose our enemy pointer or other data (goal ent, target, etc) // that make the current schedule invalid, perhaps it's best // to just pick a new one when we start up again. TYPEDESCRIPTION CBaseMonster::m_SaveData[] = { DEFINE_FIELD( CBaseMonster, m_hEnemy, FIELD_EHANDLE ), DEFINE_FIELD( CBaseMonster, m_hTargetEnt, FIELD_EHANDLE ), DEFINE_ARRAY( CBaseMonster, m_hOldEnemy, FIELD_EHANDLE, MAX_OLD_ENEMIES ), DEFINE_ARRAY( CBaseMonster, m_vecOldEnemy, FIELD_POSITION_VECTOR, MAX_OLD_ENEMIES ), DEFINE_FIELD( CBaseMonster, m_flFieldOfView, FIELD_FLOAT ), DEFINE_FIELD( CBaseMonster, m_flWaitFinished, FIELD_TIME ), DEFINE_FIELD( CBaseMonster, m_flMoveWaitFinished, FIELD_TIME ), DEFINE_FIELD( CBaseMonster, m_Activity, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_IdealActivity, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_LastHitGroup, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_MonsterState, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_IdealMonsterState, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_iTaskStatus, FIELD_INTEGER ), //Schedule_t *m_pSchedule; DEFINE_FIELD( CBaseMonster, m_iScheduleIndex, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_afConditions, FIELD_INTEGER ), //WayPoint_t m_Route[ ROUTE_SIZE ]; // DEFINE_FIELD( CBaseMonster, m_movementGoal, FIELD_INTEGER ), // DEFINE_FIELD( CBaseMonster, m_iRouteIndex, FIELD_INTEGER ), // DEFINE_FIELD( CBaseMonster, m_moveWaitTime, FIELD_FLOAT ), DEFINE_FIELD( CBaseMonster, m_vecMoveGoal, FIELD_POSITION_VECTOR ), DEFINE_FIELD( CBaseMonster, m_movementActivity, FIELD_INTEGER ), // int m_iAudibleList; // first index of a linked list of sounds that the monster can hear. // DEFINE_FIELD( CBaseMonster, m_afSoundTypes, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_vecLastPosition, FIELD_POSITION_VECTOR ), DEFINE_FIELD( CBaseMonster, m_iHintNode, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_afMemory, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_iMaxHealth, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_vecEnemyLKP, FIELD_POSITION_VECTOR ), DEFINE_FIELD( CBaseMonster, m_cAmmoLoaded, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_afCapability, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_flNextAttack, FIELD_TIME ), DEFINE_FIELD( CBaseMonster, m_bitsDamageType, FIELD_INTEGER ), DEFINE_ARRAY( CBaseMonster, m_rgbTimeBasedDamage, FIELD_CHARACTER, CDMG_TIMEBASED ), DEFINE_FIELD( CBaseMonster, m_bloodColor, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_failSchedule, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_flHungryTime, FIELD_TIME ), DEFINE_FIELD( CBaseMonster, m_flDistTooFar, FIELD_FLOAT ), DEFINE_FIELD( CBaseMonster, m_flDistLook, FIELD_FLOAT ), DEFINE_FIELD( CBaseMonster, m_iTriggerCondition, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_iszTriggerTarget, FIELD_STRING ), DEFINE_FIELD( CBaseMonster, m_HackedGunPos, FIELD_VECTOR ), DEFINE_FIELD( CBaseMonster, m_scriptState, FIELD_INTEGER ), DEFINE_FIELD( CBaseMonster, m_pCine, FIELD_CLASSPTR ), }; //IMPLEMENT_SAVERESTORE( CBaseMonster, CBaseToggle ); int CBaseMonster::Save( CSave &save ) { if ( !CBaseToggle::Save(save) ) return 0; return save.WriteFields( "CBaseMonster", this, m_SaveData, ARRAYSIZE(m_SaveData) ); } int CBaseMonster::Restore( CRestore &restore ) { if ( !CBaseToggle::Restore(restore) ) return 0; int status = restore.ReadFields( "CBaseMonster", this, m_SaveData, ARRAYSIZE(m_SaveData) ); // We don't save/restore routes yet RouteClear(); // We don't save/restore schedules yet m_pSchedule = NULL; m_iTaskStatus = TASKSTATUS_NEW; // Reset animation m_Activity = ACT_RESET; // If we don't have an enemy, clear conditions like see enemy, etc. if ( m_hEnemy == NULL ) m_afConditions = 0; return status; } //========================================================= // Eat - makes a monster full for a little while. //========================================================= void CBaseMonster :: Eat ( float flFullDuration ) { m_flHungryTime = gpGlobals->time + flFullDuration; } //========================================================= // FShouldEat - returns true if a monster is hungry. //========================================================= BOOL CBaseMonster :: FShouldEat ( void ) { if ( m_flHungryTime > gpGlobals->time ) { return FALSE; } return TRUE; } //========================================================= // Listen - monsters dig through the active sound list for // any sounds that may interest them. (smells, too!) //========================================================= void CBaseMonster :: Listen ( void ) { int iSound; int iMySounds; float hearingSensitivity; CSound *pCurrentSound; m_iAudibleList = SOUNDLIST_EMPTY; ClearConditions(bits_COND_HEAR_SOUND | bits_COND_SMELL | bits_COND_SMELL_FOOD); m_afSoundTypes = 0; iMySounds = ISoundMask(); if ( m_pSchedule ) { //!!!WATCH THIS SPOT IF YOU ARE HAVING SOUND RELATED BUGS! // Make sure your schedule AND personal sound masks agree! iMySounds &= m_pSchedule->iSoundMask; } iSound = CSoundEnt::ActiveList(); // UNDONE: Clear these here? ClearConditions( bits_COND_HEAR_SOUND | bits_COND_SMELL_FOOD | bits_COND_SMELL ); hearingSensitivity = HearingSensitivity( ); while ( iSound != SOUNDLIST_EMPTY ) { pCurrentSound = CSoundEnt::SoundPointerForIndex( iSound ); if ( pCurrentSound && ( pCurrentSound->m_iType & iMySounds ) && ( pCurrentSound->m_vecOrigin - EarPosition() ).Length() <= pCurrentSound->m_iVolume * hearingSensitivity ) //if ( ( g_pSoundEnt->m_SoundPool[ iSound ].m_iType & iMySounds ) && ( g_pSoundEnt->m_SoundPool[ iSound ].m_vecOrigin - EarPosition()).Length () <= g_pSoundEnt->m_SoundPool[ iSound ].m_iVolume * hearingSensitivity ) { // the monster cares about this sound, and it's close enough to hear. //g_pSoundEnt->m_SoundPool[ iSound ].m_iNextAudible = m_iAudibleList; pCurrentSound->m_iNextAudible = m_iAudibleList; if ( pCurrentSound->FIsSound() ) { // this is an audible sound. SetConditions( bits_COND_HEAR_SOUND ); } else { // if not a sound, must be a smell - determine if it's just a scent, or if it's a food scent // if ( g_pSoundEnt->m_SoundPool[ iSound ].m_iType & ( bits_SOUND_MEAT | bits_SOUND_CARCASS ) ) if ( pCurrentSound->m_iType & ( bits_SOUND_MEAT | bits_SOUND_CARCASS ) ) { // the detected scent is a food item, so set both conditions. // !!!BUGBUG - maybe a virtual function to determine whether or not the scent is food? SetConditions( bits_COND_SMELL_FOOD ); SetConditions( bits_COND_SMELL ); } else { // just a normal scent. SetConditions( bits_COND_SMELL ); } } // m_afSoundTypes |= g_pSoundEnt->m_SoundPool[ iSound ].m_iType; m_afSoundTypes |= pCurrentSound->m_iType; m_iAudibleList = iSound; } // iSound = g_pSoundEnt->m_SoundPool[ iSound ].m_iNext; iSound = pCurrentSound->m_iNext; } } //========================================================= // FLSoundVolume - subtracts the volume of the given sound // from the distance the sound source is from the caller, // and returns that value, which is considered to be the 'local' // volume of the sound. //========================================================= float CBaseMonster :: FLSoundVolume ( CSound *pSound ) { return ( pSound->m_iVolume - ( ( pSound->m_vecOrigin - pev->origin ).Length() ) ); } //========================================================= // FValidateHintType - tells use whether or not the monster cares // about the type of Hint Node given //========================================================= BOOL CBaseMonster :: FValidateHintType ( short sHint ) { return FALSE; } //========================================================= // Look - Base class monster function to find enemies or // food by sight. iDistance is distance ( in units ) that the // monster can see. // // Sets the sight bits of the m_afConditions mask to indicate // which types of entities were sighted. // Function also sets the Looker's m_pLink // to the head of a link list that contains all visible ents. // (linked via each ent's m_pLink field) // //========================================================= void CBaseMonster :: Look ( int iDistance ) { int iSighted = 0; // DON'T let visibility information from last frame sit around! ClearConditions(bits_COND_SEE_HATE | bits_COND_SEE_DISLIKE | bits_COND_SEE_ENEMY | bits_COND_SEE_FEAR | bits_COND_SEE_NEMESIS | bits_COND_SEE_CLIENT); m_pLink = NULL; CBaseEntity *pSightEnt = NULL;// the current visible entity that we're dealing with // See no evil if prisoner is set if ( !FBitSet( pev->spawnflags, SF_MONSTER_PRISONER ) ) { CBaseEntity *pList[100]; Vector delta = Vector( iDistance, iDistance, iDistance ); // Find only monsters/clients in box, NOT limited to PVS int count = UTIL_EntitiesInBox( pList, 100, pev->origin - delta, pev->origin + delta, FL_CLIENT|FL_MONSTER ); for ( int i = 0; i < count; i++ ) { pSightEnt = pList[i]; // !!!temporarily only considering other monsters and clients, don't see prisoners if ( pSightEnt != this && !FBitSet( pSightEnt->pev->spawnflags, SF_MONSTER_PRISONER ) && pSightEnt->pev->health > 0 ) { // the looker will want to consider this entity // don't check anything else about an entity that can't be seen, or an entity that you don't care about. if ( IRelationship( pSightEnt ) != R_NO && FInViewCone( pSightEnt ) && !FBitSet( pSightEnt->pev->flags, FL_NOTARGET ) && FVisible( pSightEnt ) ) { if ( pSightEnt->IsPlayer() ) { if ( pev->spawnflags & SF_MONSTER_WAIT_TILL_SEEN ) { CBaseMonster *pClient; pClient = pSightEnt->MyMonsterPointer(); // don't link this client in the list if the monster is wait till seen and the player isn't facing the monster if ( pSightEnt && !pClient->FInViewCone( this ) ) { // we're not in the player's view cone. continue; } else { // player sees us, become normal now. pev->spawnflags &= ~SF_MONSTER_WAIT_TILL_SEEN; } } // if we see a client, remember that (mostly for scripted AI) iSighted |= bits_COND_SEE_CLIENT; } pSightEnt->m_pLink = m_pLink; m_pLink = pSightEnt; if ( pSightEnt == m_hEnemy ) { // we know this ent is visible, so if it also happens to be our enemy, store that now. iSighted |= bits_COND_SEE_ENEMY; } // don't add the Enemy's relationship to the conditions. We only want to worry about conditions when // we see monsters other than the Enemy. switch ( IRelationship ( pSightEnt ) ) { case R_NM: iSighted |= bits_COND_SEE_NEMESIS; break; case R_HT: iSighted |= bits_COND_SEE_HATE; break; case R_DL: iSighted |= bits_COND_SEE_DISLIKE; break; case R_FR: iSighted |= bits_COND_SEE_FEAR; break; case R_AL: break; default: ALERT ( at_aiconsole, "%s can't assess %s\n", STRING(pev->classname), STRING(pSightEnt->pev->classname ) ); break; } } } } } SetConditions( iSighted ); } //========================================================= // ISoundMask - returns a bit mask indicating which types // of sounds this monster regards. In the base class implementation, // monsters care about all sounds, but no scents. //========================================================= int CBaseMonster :: ISoundMask ( void ) { return bits_SOUND_WORLD | bits_SOUND_COMBAT | bits_SOUND_PLAYER; } //========================================================= // PBestSound - returns a pointer to the sound the monster // should react to. Right now responds only to nearest sound. //========================================================= CSound* CBaseMonster :: PBestSound ( void ) { int iThisSound; int iBestSound = -1; float flBestDist = 8192;// so first nearby sound will become best so far. float flDist; CSound *pSound; iThisSound = m_iAudibleList; if ( iThisSound == SOUNDLIST_EMPTY ) { ALERT ( at_aiconsole, "ERROR! monster %s has no audible sounds!\n", STRING(pev->classname) ); #if _DEBUG ALERT( at_error, "NULL Return from PBestSound\n" ); #endif return NULL; } while ( iThisSound != SOUNDLIST_EMPTY ) { pSound = CSoundEnt::SoundPointerForIndex( iThisSound ); if ( pSound && pSound->FIsSound() ) { flDist = ( pSound->m_vecOrigin - EarPosition()).Length(); if ( flDist < flBestDist ) { iBestSound = iThisSound; flBestDist = flDist; } } iThisSound = pSound->m_iNextAudible; } if ( iBestSound >= 0 ) { pSound = CSoundEnt::SoundPointerForIndex( iBestSound ); return pSound; } #if _DEBUG ALERT( at_error, "NULL Return from PBestSound\n" ); #endif return NULL; } //========================================================= // PBestScent - returns a pointer to the scent the monster // should react to. Right now responds only to nearest scent //========================================================= CSound* CBaseMonster :: PBestScent ( void ) { int iThisScent; int iBestScent = -1; float flBestDist = 8192;// so first nearby smell will become best so far. float flDist; CSound *pSound; iThisScent = m_iAudibleList;// smells are in the sound list. if ( iThisScent == SOUNDLIST_EMPTY ) { ALERT ( at_aiconsole, "ERROR! PBestScent() has empty soundlist!\n" ); #if _DEBUG ALERT( at_error, "NULL Return from PBestSound\n" ); #endif return NULL; } while ( iThisScent != SOUNDLIST_EMPTY ) { pSound = CSoundEnt::SoundPointerForIndex( iThisScent ); if ( pSound->FIsScent() ) { flDist = ( pSound->m_vecOrigin - pev->origin ).Length(); if ( flDist < flBestDist ) { iBestScent = iThisScent; flBestDist = flDist; } } iThisScent = pSound->m_iNextAudible; } if ( iBestScent >= 0 ) { pSound = CSoundEnt::SoundPointerForIndex( iBestScent ); return pSound; } #if _DEBUG ALERT( at_error, "NULL Return from PBestScent\n" ); #endif return NULL; } //========================================================= // Monster Think - calls out to core AI functions and handles this // monster's specific animation events //========================================================= void CBaseMonster :: MonsterThink ( void ) { pev->nextthink = gpGlobals->time + 0.1;// keep monster thinking. float flInterval = StudioFrameAdvance( ); // animate // start or end a fidget // This needs a better home -- switching animations over time should be encapsulated on a per-activity basis // perhaps MaintainActivity() or a ShiftAnimationOverTime() or something. if ( m_MonsterState != MONSTERSTATE_SCRIPT && m_MonsterState != MONSTERSTATE_DEAD && m_Activity == ACT_IDLE && m_fSequenceFinished ) { int iSequence; if ( m_fSequenceLoops ) { // animation does loop, which means we're playing subtle idle. Might need to // fidget. iSequence = LookupActivity ( m_Activity ); } else { // animation that just ended doesn't loop! That means we just finished a fidget // and should return to our heaviest weighted idle (the subtle one) iSequence = LookupActivityHeaviest ( m_Activity ); } if ( iSequence != ACTIVITY_NOT_AVAILABLE ) { pev->sequence = iSequence; // Set to new anim (if it's there) ResetSequenceInfo( ); } } DispatchAnimEvents( flInterval ); if ( !MovementIsComplete() ) { Move( flInterval ); } #if _DEBUG else { if ( !TaskIsRunning() && !TaskIsComplete() ) ALERT( at_error, "Schedule stalled!!\n" ); } #endif } //========================================================= // CBaseMonster - USE - will make a monster angry at whomever // activated it. //========================================================= void CBaseMonster :: MonsterUse ( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value ) { m_IdealMonsterState = MONSTERSTATE_ALERT; } //========================================================= // Ignore conditions - before a set of conditions is allowed // to interrupt a monster's schedule, this function removes // conditions that we have flagged to interrupt the current // schedule, but may not want to interrupt the schedule every // time. (Pain, for instance) //========================================================= int CBaseMonster :: IgnoreConditions ( void ) { int iIgnoreConditions = 0; if ( !FShouldEat() ) { // not hungry? Ignore food smell. iIgnoreConditions |= bits_COND_SMELL_FOOD; } if ( m_MonsterState == MONSTERSTATE_SCRIPT && m_pCine ) iIgnoreConditions |= m_pCine->IgnoreConditions(); return iIgnoreConditions; } //========================================================= // RouteClear - zeroes out the monster's route array and goal //========================================================= void CBaseMonster :: RouteClear ( void ) { RouteNew(); m_movementGoal = MOVEGOAL_NONE; m_movementActivity = ACT_IDLE; Forget( bits_MEMORY_MOVE_FAILED ); } //========================================================= // Route New - clears out a route to be changed, but keeps // goal intact. //========================================================= void CBaseMonster :: RouteNew ( void ) { m_Route[ 0 ].iType = 0; m_iRouteIndex = 0; } //========================================================= // FRouteClear - returns TRUE is the Route is cleared out // ( invalid ) //========================================================= BOOL CBaseMonster :: FRouteClear ( void ) { if ( m_Route[ m_iRouteIndex ].iType == 0 || m_movementGoal == MOVEGOAL_NONE ) return TRUE; return FALSE; } //========================================================= // FRefreshRoute - after calculating a path to the monster's // target, this function copies as many waypoints as possible // from that path to the monster's Route array //========================================================= BOOL CBaseMonster :: FRefreshRoute ( void ) { CBaseEntity *pPathCorner; int i; BOOL returnCode; RouteNew(); returnCode = FALSE; switch( m_movementGoal ) { case MOVEGOAL_PATHCORNER: { // monster is on a path_corner loop pPathCorner = m_pGoalEnt; i = 0; while ( pPathCorner && i < ROUTE_SIZE ) { m_Route[ i ].iType = bits_MF_TO_PATHCORNER; m_Route[ i ].vecLocation = pPathCorner->pev->origin; pPathCorner = pPathCorner->GetNextTarget(); // Last path_corner in list? if ( !pPathCorner ) m_Route[i].iType |= bits_MF_IS_GOAL; i++; } } returnCode = TRUE; break; case MOVEGOAL_ENEMY: returnCode = BuildRoute( m_vecEnemyLKP, bits_MF_TO_ENEMY, m_hEnemy ); break; case MOVEGOAL_LOCATION: returnCode = BuildRoute( m_vecMoveGoal, bits_MF_TO_LOCATION, NULL ); break; case MOVEGOAL_TARGETENT: if (m_hTargetEnt != NULL) { returnCode = BuildRoute( m_hTargetEnt->pev->origin, bits_MF_TO_TARGETENT, m_hTargetEnt ); } break; case MOVEGOAL_NODE: returnCode = FGetNodeRoute( m_vecMoveGoal ); // if ( returnCode ) // RouteSimplify( NULL ); break; } return returnCode; } BOOL CBaseMonster::MoveToEnemy( Activity movementAct, float waitTime ) { m_movementActivity = movementAct; m_moveWaitTime = waitTime; m_movementGoal = MOVEGOAL_ENEMY; return FRefreshRoute(); } BOOL CBaseMonster::MoveToLocation( Activity movementAct, float waitTime, const Vector &goal ) { m_movementActivity = movementAct; m_moveWaitTime = waitTime; m_movementGoal = MOVEGOAL_LOCATION; m_vecMoveGoal = goal; return FRefreshRoute(); } BOOL CBaseMonster::MoveToTarget( Activity movementAct, float waitTime ) { m_movementActivity = movementAct; m_moveWaitTime = waitTime; m_movementGoal = MOVEGOAL_TARGETENT; return FRefreshRoute(); } BOOL CBaseMonster::MoveToNode( Activity movementAct, float waitTime, const Vector &goal ) { m_movementActivity = movementAct; m_moveWaitTime = waitTime; m_movementGoal = MOVEGOAL_NODE; m_vecMoveGoal = goal; return FRefreshRoute(); } #ifdef _DEBUG void DrawRoute( entvars_t *pev, WayPoint_t *m_Route, int m_iRouteIndex, int r, int g, int b ) { int i; if ( m_Route[m_iRouteIndex].iType == 0 ) { ALERT( at_aiconsole, "Can't draw route!\n" ); return; } // UTIL_ParticleEffect ( m_Route[ m_iRouteIndex ].vecLocation, g_vecZero, 255, 25 ); MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY ); WRITE_BYTE( TE_BEAMPOINTS); WRITE_COORD( pev->origin.x ); WRITE_COORD( pev->origin.y ); WRITE_COORD( pev->origin.z ); WRITE_COORD( m_Route[ m_iRouteIndex ].vecLocation.x ); WRITE_COORD( m_Route[ m_iRouteIndex ].vecLocation.y ); WRITE_COORD( m_Route[ m_iRouteIndex ].vecLocation.z ); WRITE_SHORT( g_sModelIndexLaser ); WRITE_BYTE( 0 ); // frame start WRITE_BYTE( 10 ); // framerate WRITE_BYTE( 1 ); // life WRITE_BYTE( 16 ); // width WRITE_BYTE( 0 ); // noise WRITE_BYTE( r ); // r, g, b WRITE_BYTE( g ); // r, g, b WRITE_BYTE( b ); // r, g, b WRITE_BYTE( 255 ); // brightness WRITE_BYTE( 10 ); // speed MESSAGE_END(); for ( i = m_iRouteIndex ; i < ROUTE_SIZE - 1; i++ ) { if ( (m_Route[ i ].iType & bits_MF_IS_GOAL) || (m_Route[ i+1 ].iType == 0) ) break; MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY ); WRITE_BYTE( TE_BEAMPOINTS ); WRITE_COORD( m_Route[ i ].vecLocation.x ); WRITE_COORD( m_Route[ i ].vecLocation.y ); WRITE_COORD( m_Route[ i ].vecLocation.z ); WRITE_COORD( m_Route[ i + 1 ].vecLocation.x ); WRITE_COORD( m_Route[ i + 1 ].vecLocation.y ); WRITE_COORD( m_Route[ i + 1 ].vecLocation.z ); WRITE_SHORT( g_sModelIndexLaser ); WRITE_BYTE( 0 ); // frame start WRITE_BYTE( 10 ); // framerate WRITE_BYTE( 1 ); // life WRITE_BYTE( 8 ); // width WRITE_BYTE( 0 ); // noise WRITE_BYTE( r ); // r, g, b WRITE_BYTE( g ); // r, g, b WRITE_BYTE( b ); // r, g, b WRITE_BYTE( 255 ); // brightness WRITE_BYTE( 10 ); // speed MESSAGE_END(); // UTIL_ParticleEffect ( m_Route[ i ].vecLocation, g_vecZero, 255, 25 ); } } #endif int ShouldSimplify( int routeType ) { routeType &= ~bits_MF_IS_GOAL; if ( (routeType == bits_MF_TO_PATHCORNER) || (routeType & bits_MF_DONT_SIMPLIFY) ) return FALSE; return TRUE; } //========================================================= // RouteSimplify // // Attempts to make the route more direct by cutting out // unnecessary nodes & cutting corners. // //========================================================= void CBaseMonster :: RouteSimplify( CBaseEntity *pTargetEnt ) { // BUGBUG: this doesn't work 100% yet int i, count, outCount; Vector vecStart; WayPoint_t outRoute[ ROUTE_SIZE * 2 ]; // Any points except the ends can turn into 2 points in the simplified route count = 0; for ( i = m_iRouteIndex; i < ROUTE_SIZE; i++ ) { if ( !m_Route[i].iType ) break; else count++; if ( m_Route[i].iType & bits_MF_IS_GOAL ) break; } // Can't simplify a direct route! if ( count < 2 ) { // DrawRoute( pev, m_Route, m_iRouteIndex, 0, 0, 255 ); return; } outCount = 0; vecStart = pev->origin; for ( i = 0; i < count-1; i++ ) { // Don't eliminate path_corners if ( !ShouldSimplify( m_Route[m_iRouteIndex+i].iType ) ) { outRoute[outCount] = m_Route[ m_iRouteIndex + i ]; outCount++; } else if ( CheckLocalMove ( vecStart, m_Route[m_iRouteIndex+i+1].vecLocation, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { // Skip vert continue; } else { Vector vecTest, vecSplit; // Halfway between this and next vecTest = (m_Route[m_iRouteIndex+i+1].vecLocation + m_Route[m_iRouteIndex+i].vecLocation) * 0.5; // Halfway between this and previous vecSplit = (m_Route[m_iRouteIndex+i].vecLocation + vecStart) * 0.5; int iType = (m_Route[m_iRouteIndex+i].iType | bits_MF_TO_DETOUR) & ~bits_MF_NOT_TO_MASK; if ( CheckLocalMove ( vecStart, vecTest, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { outRoute[outCount].iType = iType; outRoute[outCount].vecLocation = vecTest; } else if ( CheckLocalMove ( vecSplit, vecTest, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { outRoute[outCount].iType = iType; outRoute[outCount].vecLocation = vecSplit; outRoute[outCount+1].iType = iType; outRoute[outCount+1].vecLocation = vecTest; outCount++; // Adding an extra point } else { outRoute[outCount] = m_Route[ m_iRouteIndex + i ]; } } // Get last point vecStart = outRoute[ outCount ].vecLocation; outCount++; } ASSERT( i < count ); outRoute[outCount] = m_Route[ m_iRouteIndex + i ]; outCount++; // Terminate outRoute[outCount].iType = 0; ASSERT( outCount < (ROUTE_SIZE*2) ); // Copy the simplified route, disable for testing m_iRouteIndex = 0; for ( i = 0; i < ROUTE_SIZE && i < outCount; i++ ) { m_Route[i] = outRoute[i]; } // Terminate route if ( i < ROUTE_SIZE ) m_Route[i].iType = 0; // Debug, test movement code #if 0 // if ( CVAR_GET_FLOAT( "simplify" ) != 0 ) DrawRoute( pev, outRoute, 0, 255, 0, 0 ); // else DrawRoute( pev, m_Route, m_iRouteIndex, 0, 255, 0 ); #endif } //========================================================= // FBecomeProne - tries to send a monster into PRONE state. // right now only used when a barnacle snatches someone, so // may have some special case stuff for that. //========================================================= BOOL CBaseMonster :: FBecomeProne ( void ) { if ( FBitSet ( pev->flags, FL_ONGROUND ) ) { pev->flags -= FL_ONGROUND; } m_IdealMonsterState = MONSTERSTATE_PRONE; return TRUE; } //========================================================= // CheckRangeAttack1 //========================================================= BOOL CBaseMonster :: CheckRangeAttack1 ( float flDot, float flDist ) { if ( flDist > 64 && flDist <= 784 && flDot >= 0.5 ) { return TRUE; } return FALSE; } //========================================================= // CheckRangeAttack2 //========================================================= BOOL CBaseMonster :: CheckRangeAttack2 ( float flDot, float flDist ) { if ( flDist > 64 && flDist <= 512 && flDot >= 0.5 ) { return TRUE; } return FALSE; } //========================================================= // CheckMeleeAttack1 //========================================================= BOOL CBaseMonster :: CheckMeleeAttack1 ( float flDot, float flDist ) { // Decent fix to keep folks from kicking/punching hornets and snarks is to check the onground flag(sjb) if ( flDist <= 64 && flDot >= 0.7 && m_hEnemy != NULL && FBitSet ( m_hEnemy->pev->flags, FL_ONGROUND ) ) { return TRUE; } return FALSE; } //========================================================= // CheckMeleeAttack2 //========================================================= BOOL CBaseMonster :: CheckMeleeAttack2 ( float flDot, float flDist ) { if ( flDist <= 64 && flDot >= 0.7 ) { return TRUE; } return FALSE; } //========================================================= // CheckAttacks - sets all of the bits for attacks that the // monster is capable of carrying out on the passed entity. //========================================================= void CBaseMonster :: CheckAttacks ( CBaseEntity *pTarget, float flDist ) { Vector2D vec2LOS; float flDot; UTIL_MakeVectors ( pev->angles ); vec2LOS = ( pTarget->pev->origin - pev->origin ).Make2D(); vec2LOS = vec2LOS.Normalize(); flDot = DotProduct (vec2LOS , gpGlobals->v_forward.Make2D() ); // we know the enemy is in front now. We'll find which attacks the monster is capable of by // checking for corresponding Activities in the model file, then do the simple checks to validate // those attack types. // Clear all attack conditions ClearConditions( bits_COND_CAN_RANGE_ATTACK1 | bits_COND_CAN_RANGE_ATTACK2 | bits_COND_CAN_MELEE_ATTACK1 |bits_COND_CAN_MELEE_ATTACK2 ); if ( m_afCapability & bits_CAP_RANGE_ATTACK1 ) { if ( CheckRangeAttack1 ( flDot, flDist ) ) SetConditions( bits_COND_CAN_RANGE_ATTACK1 ); } if ( m_afCapability & bits_CAP_RANGE_ATTACK2 ) { if ( CheckRangeAttack2 ( flDot, flDist ) ) SetConditions( bits_COND_CAN_RANGE_ATTACK2 ); } if ( m_afCapability & bits_CAP_MELEE_ATTACK1 ) { if ( CheckMeleeAttack1 ( flDot, flDist ) ) SetConditions( bits_COND_CAN_MELEE_ATTACK1 ); } if ( m_afCapability & bits_CAP_MELEE_ATTACK2 ) { if ( CheckMeleeAttack2 ( flDot, flDist ) ) SetConditions( bits_COND_CAN_MELEE_ATTACK2 ); } } //========================================================= // CanCheckAttacks - prequalifies a monster to do more fine // checking of potential attacks. //========================================================= BOOL CBaseMonster :: FCanCheckAttacks ( void ) { if ( HasConditions(bits_COND_SEE_ENEMY) && !HasConditions( bits_COND_ENEMY_TOOFAR ) ) { return TRUE; } return FALSE; } //========================================================= // CheckEnemy - part of the Condition collection process, // gets and stores data and conditions pertaining to a monster's // enemy. Returns TRUE if Enemy LKP was updated. //========================================================= int CBaseMonster :: CheckEnemy ( CBaseEntity *pEnemy ) { float flDistToEnemy; int iUpdatedLKP;// set this to TRUE if you update the EnemyLKP in this function. iUpdatedLKP = FALSE; ClearConditions ( bits_COND_ENEMY_FACING_ME ); if ( !FVisible( pEnemy ) ) { ASSERT(!HasConditions(bits_COND_SEE_ENEMY)); SetConditions( bits_COND_ENEMY_OCCLUDED ); } else ClearConditions( bits_COND_ENEMY_OCCLUDED ); if ( !pEnemy->IsAlive() ) { SetConditions ( bits_COND_ENEMY_DEAD ); ClearConditions( bits_COND_SEE_ENEMY | bits_COND_ENEMY_OCCLUDED ); return FALSE; } Vector vecEnemyPos = pEnemy->pev->origin; // distance to enemy's origin flDistToEnemy = ( vecEnemyPos - pev->origin ).Length(); vecEnemyPos.z += pEnemy->pev->size.z * 0.5; // distance to enemy's head float flDistToEnemy2 = (vecEnemyPos - pev->origin).Length(); if (flDistToEnemy2 < flDistToEnemy) flDistToEnemy = flDistToEnemy2; else { // distance to enemy's feet vecEnemyPos.z -= pEnemy->pev->size.z; float flDistToEnemy2 = (vecEnemyPos - pev->origin).Length(); if (flDistToEnemy2 < flDistToEnemy) flDistToEnemy = flDistToEnemy2; } if ( HasConditions( bits_COND_SEE_ENEMY ) ) { CBaseMonster *pEnemyMonster; iUpdatedLKP = TRUE; m_vecEnemyLKP = pEnemy->pev->origin; pEnemyMonster = pEnemy->MyMonsterPointer(); if ( pEnemyMonster ) { if ( pEnemyMonster->FInViewCone ( this ) ) { SetConditions ( bits_COND_ENEMY_FACING_ME ); } else ClearConditions( bits_COND_ENEMY_FACING_ME ); } if (pEnemy->pev->velocity != Vector( 0, 0, 0)) { // trail the enemy a bit m_vecEnemyLKP = m_vecEnemyLKP - pEnemy->pev->velocity * RANDOM_FLOAT( -0.05, 0 ); } else { // UNDONE: use pev->oldorigin? } } else if ( !HasConditions(bits_COND_ENEMY_OCCLUDED|bits_COND_SEE_ENEMY) && ( flDistToEnemy <= 256 ) ) { // if the enemy is not occluded, and unseen, that means it is behind or beside the monster. // if the enemy is near enough the monster, we go ahead and let the monster know where the // enemy is. iUpdatedLKP = TRUE; m_vecEnemyLKP = pEnemy->pev->origin; } if ( flDistToEnemy >= m_flDistTooFar ) { // enemy is very far away from monster SetConditions( bits_COND_ENEMY_TOOFAR ); } else ClearConditions( bits_COND_ENEMY_TOOFAR ); if ( FCanCheckAttacks() ) { CheckAttacks ( m_hEnemy, flDistToEnemy ); } if ( m_movementGoal == MOVEGOAL_ENEMY ) { for ( int i = m_iRouteIndex; i < ROUTE_SIZE; i++ ) { if ( m_Route[ i ].iType == (bits_MF_IS_GOAL|bits_MF_TO_ENEMY) ) { // UNDONE: Should we allow monsters to override this distance (80?) if ( (m_Route[ i ].vecLocation - m_vecEnemyLKP).Length() > 80 ) { // Refresh FRefreshRoute(); return iUpdatedLKP; } } } } return iUpdatedLKP; } //========================================================= // PushEnemy - remember the last few enemies, always remember the player //========================================================= void CBaseMonster :: PushEnemy( CBaseEntity *pEnemy, Vector &vecLastKnownPos ) { int i; if (pEnemy == NULL) return; // UNDONE: blah, this is bad, we should use a stack but I'm too lazy to code one. for (i = 0; i < MAX_OLD_ENEMIES; i++) { if (m_hOldEnemy[i] == pEnemy) return; if (m_hOldEnemy[i] == NULL) // someone died, reuse their slot break; } if (i >= MAX_OLD_ENEMIES) return; m_hOldEnemy[i] = pEnemy; m_vecOldEnemy[i] = vecLastKnownPos; } //========================================================= // PopEnemy - try remembering the last few enemies //========================================================= BOOL CBaseMonster :: PopEnemy( ) { // UNDONE: blah, this is bad, we should use a stack but I'm too lazy to code one. for (int i = MAX_OLD_ENEMIES - 1; i >= 0; i--) { if (m_hOldEnemy[i] != NULL) { if (m_hOldEnemy[i]->IsAlive( )) // cheat and know when they die { m_hEnemy = m_hOldEnemy[i]; m_vecEnemyLKP = m_vecOldEnemy[i]; // ALERT( at_console, "remembering\n"); return TRUE; } else { m_hOldEnemy[i] = NULL; } } } return FALSE; } //========================================================= // SetActivity //========================================================= void CBaseMonster :: SetActivity ( Activity NewActivity ) { int iSequence; iSequence = LookupActivity ( NewActivity ); // Set to the desired anim, or default anim if the desired is not present if ( iSequence > ACTIVITY_NOT_AVAILABLE ) { if ( pev->sequence != iSequence || !m_fSequenceLoops ) { // don't reset frame between walk and run if ( !(m_Activity == ACT_WALK || m_Activity == ACT_RUN) || !(NewActivity == ACT_WALK || NewActivity == ACT_RUN)) pev->frame = 0; } pev->sequence = iSequence; // Set to the reset anim (if it's there) ResetSequenceInfo( ); SetYawSpeed(); } else { // Not available try to get default anim ALERT ( at_aiconsole, "%s has no sequence for act:%d\n", STRING(pev->classname), NewActivity ); pev->sequence = 0; // Set to the reset anim (if it's there) } m_Activity = NewActivity; // Go ahead and set this so it doesn't keep trying when the anim is not present // In case someone calls this with something other than the ideal activity m_IdealActivity = m_Activity; } //========================================================= // SetSequenceByName //========================================================= void CBaseMonster :: SetSequenceByName ( char *szSequence ) { int iSequence; iSequence = LookupSequence ( szSequence ); // Set to the desired anim, or default anim if the desired is not present if ( iSequence > ACTIVITY_NOT_AVAILABLE ) { if ( pev->sequence != iSequence || !m_fSequenceLoops ) { pev->frame = 0; } pev->sequence = iSequence; // Set to the reset anim (if it's there) ResetSequenceInfo( ); SetYawSpeed(); } else { // Not available try to get default anim ALERT ( at_aiconsole, "%s has no sequence named:%f\n", STRING(pev->classname), szSequence ); pev->sequence = 0; // Set to the reset anim (if it's there) } } //========================================================= // CheckLocalMove - returns TRUE if the caller can walk a // straight line from its current origin to the given // location. If so, don't use the node graph! // // if a valid pointer to a int is passed, the function // will fill that int with the distance that the check // reached before hitting something. THIS ONLY HAPPENS // IF THE LOCAL MOVE CHECK FAILS! // // !!!PERFORMANCE - should we try to load balance this? // DON"T USE SETORIGIN! //========================================================= #define LOCAL_STEP_SIZE 16 int CBaseMonster :: CheckLocalMove ( const Vector &vecStart, const Vector &vecEnd, CBaseEntity *pTarget, float *pflDist ) { Vector vecStartPos;// record monster's position before trying the move float flYaw; float flDist; float flStep, stepSize; int iReturn; vecStartPos = pev->origin; flYaw = UTIL_VecToYaw ( vecEnd - vecStart );// build a yaw that points to the goal. flDist = ( vecEnd - vecStart ).Length2D();// get the distance. iReturn = LOCALMOVE_VALID;// assume everything will be ok. // move the monster to the start of the local move that's to be checked. UTIL_SetOrigin( pev, vecStart );// !!!BUGBUG - won't this fire triggers? - nope, SetOrigin doesn't fire if ( !(pev->flags & (FL_FLY|FL_SWIM)) ) { DROP_TO_FLOOR( ENT( pev ) );//make sure monster is on the floor! } //pev->origin.z = vecStartPos.z;//!!!HACKHACK // pev->origin = vecStart; /* if ( flDist > 1024 ) { // !!!PERFORMANCE - this operation may be too CPU intensive to try checks this large. // We don't lose much here, because a distance this great is very likely // to have something in the way. // since we've actually moved the monster during the check, undo the move. pev->origin = vecStartPos; return FALSE; } */ // this loop takes single steps to the goal. for ( flStep = 0 ; flStep < flDist ; flStep += LOCAL_STEP_SIZE ) { stepSize = LOCAL_STEP_SIZE; if ( (flStep + LOCAL_STEP_SIZE) >= (flDist-1) ) stepSize = (flDist - flStep) - 1; // UTIL_ParticleEffect ( pev->origin, g_vecZero, 255, 25 ); if ( !WALK_MOVE( ENT(pev), flYaw, stepSize, WALKMOVE_CHECKONLY ) ) {// can't take the next step, fail! if ( pflDist != NULL ) { *pflDist = flStep; } if ( pTarget && pTarget->edict() == gpGlobals->trace_ent ) { // if this step hits target ent, the move is legal. iReturn = LOCALMOVE_VALID; break; } else { // If we're going toward an entity, and we're almost getting there, it's OK. // if ( pTarget && fabs( flDist - iStep ) < LOCAL_STEP_SIZE ) // fReturn = TRUE; // else iReturn = LOCALMOVE_INVALID; break; } } } if ( iReturn == LOCALMOVE_VALID && !(pev->flags & (FL_FLY|FL_SWIM) ) && (!pTarget || (pTarget->pev->flags & FL_ONGROUND)) ) { // The monster can move to a spot UNDER the target, but not to it. Don't try to triangulate, go directly to the node graph. // UNDONE: Magic # 64 -- this used to be pev->size.z but that won't work for small creatures like the headcrab if ( fabs(vecEnd.z - pev->origin.z) > 64 ) { iReturn = LOCALMOVE_INVALID_DONT_TRIANGULATE; } } /* // uncommenting this block will draw a line representing the nearest legal move. WRITE_BYTE(MSG_BROADCAST, SVC_TEMPENTITY); WRITE_BYTE(MSG_BROADCAST, TE_SHOWLINE); WRITE_COORD(MSG_BROADCAST, pev->origin.x); WRITE_COORD(MSG_BROADCAST, pev->origin.y); WRITE_COORD(MSG_BROADCAST, pev->origin.z); WRITE_COORD(MSG_BROADCAST, vecStart.x); WRITE_COORD(MSG_BROADCAST, vecStart.y); WRITE_COORD(MSG_BROADCAST, vecStart.z); */ // since we've actually moved the monster during the check, undo the move. UTIL_SetOrigin( pev, vecStartPos ); return iReturn; } float CBaseMonster :: OpenDoorAndWait( entvars_t *pevDoor ) { float flTravelTime = 0; //ALERT(at_aiconsole, "A door. "); CBaseEntity *pcbeDoor = CBaseEntity::Instance(pevDoor); if (pcbeDoor && !pcbeDoor->IsLockedByMaster()) { //ALERT(at_aiconsole, "unlocked! "); pcbeDoor->Use(this, this, USE_ON, 0.0); //ALERT(at_aiconsole, "pevDoor->nextthink = %d ms\n", (int)(1000*pevDoor->nextthink)); //ALERT(at_aiconsole, "pevDoor->ltime = %d ms\n", (int)(1000*pevDoor->ltime)); //ALERT(at_aiconsole, "pev-> nextthink = %d ms\n", (int)(1000*pev->nextthink)); //ALERT(at_aiconsole, "pev->ltime = %d ms\n", (int)(1000*pev->ltime)); flTravelTime = pevDoor->nextthink - pevDoor->ltime; //ALERT(at_aiconsole, "Waiting %d ms\n", (int)(1000*flTravelTime)); if ( pcbeDoor->pev->targetname ) { edict_t *pentTarget = NULL; for (;;) { pentTarget = FIND_ENTITY_BY_TARGETNAME( pentTarget, STRING(pcbeDoor->pev->targetname)); if ( VARS( pentTarget ) != pcbeDoor->pev ) { if (FNullEnt(pentTarget)) break; if ( FClassnameIs ( pentTarget, STRING(pcbeDoor->pev->classname) ) ) { CBaseEntity *pDoor = Instance(pentTarget); if ( pDoor ) pDoor->Use(this, this, USE_ON, 0.0); } } } } } return gpGlobals->time + flTravelTime; } //========================================================= // AdvanceRoute - poorly named function that advances the // m_iRouteIndex. If it goes beyond ROUTE_SIZE, the route // is refreshed. //========================================================= void CBaseMonster :: AdvanceRoute ( float distance ) { if ( m_iRouteIndex == ROUTE_SIZE - 1 ) { // time to refresh the route. if ( !FRefreshRoute() ) { ALERT ( at_aiconsole, "Can't Refresh Route!!\n" ); } } else { if ( ! (m_Route[ m_iRouteIndex ].iType & bits_MF_IS_GOAL) ) { // If we've just passed a path_corner, advance m_pGoalEnt if ( (m_Route[ m_iRouteIndex ].iType & ~bits_MF_NOT_TO_MASK) == bits_MF_TO_PATHCORNER ) m_pGoalEnt = m_pGoalEnt->GetNextTarget(); // IF both waypoints are nodes, then check for a link for a door and operate it. // if ( (m_Route[m_iRouteIndex].iType & bits_MF_TO_NODE) == bits_MF_TO_NODE && (m_Route[m_iRouteIndex+1].iType & bits_MF_TO_NODE) == bits_MF_TO_NODE) { //ALERT(at_aiconsole, "SVD: Two nodes. "); int iSrcNode = WorldGraph.FindNearestNode(m_Route[m_iRouteIndex].vecLocation, this ); int iDestNode = WorldGraph.FindNearestNode(m_Route[m_iRouteIndex+1].vecLocation, this ); int iLink; WorldGraph.HashSearch(iSrcNode, iDestNode, iLink); if ( iLink >= 0 && WorldGraph.m_pLinkPool[iLink].m_pLinkEnt != NULL ) { //ALERT(at_aiconsole, "A link. "); if ( WorldGraph.HandleLinkEnt ( iSrcNode, WorldGraph.m_pLinkPool[iLink].m_pLinkEnt, m_afCapability, CGraph::NODEGRAPH_DYNAMIC ) ) { //ALERT(at_aiconsole, "usable."); entvars_t *pevDoor = WorldGraph.m_pLinkPool[iLink].m_pLinkEnt; if (pevDoor) { m_flMoveWaitFinished = OpenDoorAndWait( pevDoor ); // ALERT( at_aiconsole, "Wating for door %.2f\n", m_flMoveWaitFinished-gpGlobals->time ); } } } //ALERT(at_aiconsole, "\n"); } m_iRouteIndex++; } else // At goal!!! { if ( distance < m_flGroundSpeed * 0.2 /* FIX */ ) { MovementComplete(); } } } } int CBaseMonster :: RouteClassify( int iMoveFlag ) { int movementGoal; movementGoal = MOVEGOAL_NONE; if ( iMoveFlag & bits_MF_TO_TARGETENT ) movementGoal = MOVEGOAL_TARGETENT; else if ( iMoveFlag & bits_MF_TO_ENEMY ) movementGoal = MOVEGOAL_ENEMY; else if ( iMoveFlag & bits_MF_TO_PATHCORNER ) movementGoal = MOVEGOAL_PATHCORNER; else if ( iMoveFlag & bits_MF_TO_NODE ) movementGoal = MOVEGOAL_NODE; else if ( iMoveFlag & bits_MF_TO_LOCATION ) movementGoal = MOVEGOAL_LOCATION; return movementGoal; } //========================================================= // BuildRoute //========================================================= BOOL CBaseMonster :: BuildRoute ( const Vector &vecGoal, int iMoveFlag, CBaseEntity *pTarget ) { float flDist; Vector vecApex; int iLocalMove; RouteNew(); m_movementGoal = RouteClassify( iMoveFlag ); // so we don't end up with no moveflags m_Route[ 0 ].vecLocation = vecGoal; m_Route[ 0 ].iType = iMoveFlag | bits_MF_IS_GOAL; // check simple local move iLocalMove = CheckLocalMove( pev->origin, vecGoal, pTarget, &flDist ); if ( iLocalMove == LOCALMOVE_VALID ) { // monster can walk straight there! return TRUE; } // try to triangulate around any obstacles. else if ( iLocalMove != LOCALMOVE_INVALID_DONT_TRIANGULATE && FTriangulate( pev->origin, vecGoal, flDist, pTarget, &vecApex ) ) { // there is a slightly more complicated path that allows the monster to reach vecGoal m_Route[ 0 ].vecLocation = vecApex; m_Route[ 0 ].iType = (iMoveFlag | bits_MF_TO_DETOUR); m_Route[ 1 ].vecLocation = vecGoal; m_Route[ 1 ].iType = iMoveFlag | bits_MF_IS_GOAL; /* WRITE_BYTE(MSG_BROADCAST, SVC_TEMPENTITY); WRITE_BYTE(MSG_BROADCAST, TE_SHOWLINE); WRITE_COORD(MSG_BROADCAST, vecApex.x ); WRITE_COORD(MSG_BROADCAST, vecApex.y ); WRITE_COORD(MSG_BROADCAST, vecApex.z ); WRITE_COORD(MSG_BROADCAST, vecApex.x ); WRITE_COORD(MSG_BROADCAST, vecApex.y ); WRITE_COORD(MSG_BROADCAST, vecApex.z + 128 ); */ RouteSimplify( pTarget ); return TRUE; } // last ditch, try nodes if ( FGetNodeRoute( vecGoal ) ) { // ALERT ( at_console, "Can get there on nodes\n" ); m_vecMoveGoal = vecGoal; RouteSimplify( pTarget ); return TRUE; } // b0rk return FALSE; } //========================================================= // InsertWaypoint - Rebuilds the existing route so that the // supplied vector and moveflags are the first waypoint in // the route, and fills the rest of the route with as much // of the pre-existing route as possible //========================================================= void CBaseMonster :: InsertWaypoint ( Vector vecLocation, int afMoveFlags ) { int i, type; // we have to save some Index and Type information from the real // path_corner or node waypoint that the monster was trying to reach. This makes sure that data necessary // to refresh the original path exists even in the new waypoints that don't correspond directy to a path_corner // or node. type = afMoveFlags | (m_Route[ m_iRouteIndex ].iType & ~bits_MF_NOT_TO_MASK); for ( i = ROUTE_SIZE-1; i > 0; i-- ) m_Route[i] = m_Route[i-1]; m_Route[ m_iRouteIndex ].vecLocation = vecLocation; m_Route[ m_iRouteIndex ].iType = type; } //========================================================= // FTriangulate - tries to overcome local obstacles by // triangulating a path around them. // // iApexDist is how far the obstruction that we are trying // to triangulate around is from the monster. //========================================================= BOOL CBaseMonster :: FTriangulate ( const Vector &vecStart , const Vector &vecEnd, float flDist, CBaseEntity *pTargetEnt, Vector *pApex ) { Vector vecDir; Vector vecForward; Vector vecLeft;// the spot we'll try to triangulate to on the left Vector vecRight;// the spot we'll try to triangulate to on the right Vector vecTop;// the spot we'll try to triangulate to on the top Vector vecBottom;// the spot we'll try to triangulate to on the bottom Vector vecFarSide;// the spot that we'll move to after hitting the triangulated point, before moving on to our normal goal. int i; float sizeX, sizeZ; // If the hull width is less than 24, use 24 because CheckLocalMove uses a min of // 24. sizeX = pev->size.x; if (sizeX < 24.0) sizeX = 24.0; else if (sizeX > 48.0) sizeX = 48.0; sizeZ = pev->size.z; //if (sizeZ < 24.0) // sizeZ = 24.0; vecForward = ( vecEnd - vecStart ).Normalize(); Vector vecDirUp(0,0,1); vecDir = CrossProduct ( vecForward, vecDirUp); // start checking right about where the object is, picking two equidistant starting points, one on // the left, one on the right. As we progress through the loop, we'll push these away from the obstacle, // hoping to find a way around on either side. pev->size.x is added to the ApexDist in order to help select // an apex point that insures that the monster is sufficiently past the obstacle before trying to turn back // onto its original course. vecLeft = pev->origin + ( vecForward * ( flDist + sizeX ) ) - vecDir * ( sizeX * 3 ); vecRight = pev->origin + ( vecForward * ( flDist + sizeX ) ) + vecDir * ( sizeX * 3 ); if (pev->movetype == MOVETYPE_FLY) { vecTop = pev->origin + (vecForward * flDist) + (vecDirUp * sizeZ * 3); vecBottom = pev->origin + (vecForward * flDist) - (vecDirUp * sizeZ * 3); } vecFarSide = m_Route[ m_iRouteIndex ].vecLocation; vecDir = vecDir * sizeX * 2; if (pev->movetype == MOVETYPE_FLY) vecDirUp = vecDirUp * sizeZ * 2; for ( i = 0 ; i < 8; i++ ) { // Debug, Draw the triangulation #if 0 MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY ); WRITE_BYTE( TE_SHOWLINE); WRITE_COORD( pev->origin.x ); WRITE_COORD( pev->origin.y ); WRITE_COORD( pev->origin.z ); WRITE_COORD( vecRight.x ); WRITE_COORD( vecRight.y ); WRITE_COORD( vecRight.z ); MESSAGE_END(); MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY ); WRITE_BYTE( TE_SHOWLINE ); WRITE_COORD( pev->origin.x ); WRITE_COORD( pev->origin.y ); WRITE_COORD( pev->origin.z ); WRITE_COORD( vecLeft.x ); WRITE_COORD( vecLeft.y ); WRITE_COORD( vecLeft.z ); MESSAGE_END(); #endif #if 0 if (pev->movetype == MOVETYPE_FLY) { MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY ); WRITE_BYTE( TE_SHOWLINE ); WRITE_COORD( pev->origin.x ); WRITE_COORD( pev->origin.y ); WRITE_COORD( pev->origin.z ); WRITE_COORD( vecTop.x ); WRITE_COORD( vecTop.y ); WRITE_COORD( vecTop.z ); MESSAGE_END(); MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY ); WRITE_BYTE( TE_SHOWLINE ); WRITE_COORD( pev->origin.x ); WRITE_COORD( pev->origin.y ); WRITE_COORD( pev->origin.z ); WRITE_COORD( vecBottom.x ); WRITE_COORD( vecBottom.y ); WRITE_COORD( vecBottom.z ); MESSAGE_END(); } #endif if ( CheckLocalMove( pev->origin, vecRight, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { if ( CheckLocalMove ( vecRight, vecFarSide, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { if ( pApex ) { *pApex = vecRight; } return TRUE; } } if ( CheckLocalMove( pev->origin, vecLeft, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { if ( CheckLocalMove ( vecLeft, vecFarSide, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { if ( pApex ) { *pApex = vecLeft; } return TRUE; } } if (pev->movetype == MOVETYPE_FLY) { if ( CheckLocalMove( pev->origin, vecTop, pTargetEnt, NULL ) == LOCALMOVE_VALID) { if ( CheckLocalMove ( vecTop, vecFarSide, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { if ( pApex ) { *pApex = vecTop; //ALERT(at_aiconsole, "triangulate over\n"); } return TRUE; } } #if 1 if ( CheckLocalMove( pev->origin, vecBottom, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { if ( CheckLocalMove ( vecBottom, vecFarSide, pTargetEnt, NULL ) == LOCALMOVE_VALID ) { if ( pApex ) { *pApex = vecBottom; //ALERT(at_aiconsole, "triangulate under\n"); } return TRUE; } } #endif } vecRight = vecRight + vecDir; vecLeft = vecLeft - vecDir; if (pev->movetype == MOVETYPE_FLY) { vecTop = vecTop + vecDirUp; vecBottom = vecBottom - vecDirUp; } } return FALSE; } //========================================================= // Move - take a single step towards the next ROUTE location //========================================================= #define DIST_TO_CHECK 200 void CBaseMonster :: Move ( float flInterval ) { float flWaypointDist; float flCheckDist; float flDist;// how far the lookahead check got before hitting an object. Vector vecDir; Vector vecApex; CBaseEntity *pTargetEnt; // Don't move if no valid route if ( FRouteClear() ) { // If we still have a movement goal, then this is probably a route truncated by SimplifyRoute() // so refresh it. if ( m_movementGoal == MOVEGOAL_NONE || !FRefreshRoute() ) { ALERT( at_aiconsole, "Tried to move with no route!\n" ); TaskFail(); return; } } if ( m_flMoveWaitFinished > gpGlobals->time ) return; // Debug, test movement code #if 0 // if ( CVAR_GET_FLOAT("stopmove" ) != 0 ) { if ( m_movementGoal == MOVEGOAL_ENEMY ) RouteSimplify( m_hEnemy ); else RouteSimplify( m_hTargetEnt ); FRefreshRoute(); return; } #else // Debug, draw the route // DrawRoute( pev, m_Route, m_iRouteIndex, 0, 200, 0 ); #endif // if the monster is moving directly towards an entity (enemy for instance), we'll set this pointer // to that entity for the CheckLocalMove and Triangulate functions. pTargetEnt = NULL; // local move to waypoint. vecDir = ( m_Route[ m_iRouteIndex ].vecLocation - pev->origin ).Normalize(); flWaypointDist = ( m_Route[ m_iRouteIndex ].vecLocation - pev->origin ).Length2D(); MakeIdealYaw ( m_Route[ m_iRouteIndex ].vecLocation ); ChangeYaw ( pev->yaw_speed ); // if the waypoint is closer than CheckDist, CheckDist is the dist to waypoint if ( flWaypointDist < DIST_TO_CHECK ) { flCheckDist = flWaypointDist; } else { flCheckDist = DIST_TO_CHECK; } if ( (m_Route[ m_iRouteIndex ].iType & (~bits_MF_NOT_TO_MASK)) == bits_MF_TO_ENEMY ) { // only on a PURE move to enemy ( i.e., ONLY MF_TO_ENEMY set, not MF_TO_ENEMY and DETOUR ) pTargetEnt = m_hEnemy; } else if ( (m_Route[ m_iRouteIndex ].iType & ~bits_MF_NOT_TO_MASK) == bits_MF_TO_TARGETENT ) { pTargetEnt = m_hTargetEnt; } // !!!BUGBUG - CheckDist should be derived from ground speed. // If this fails, it should be because of some dynamic entity blocking this guy. // We've already checked this path, so we should wait and time out if the entity doesn't move flDist = 0; if ( CheckLocalMove ( pev->origin, pev->origin + vecDir * flCheckDist, pTargetEnt, &flDist ) != LOCALMOVE_VALID ) { CBaseEntity *pBlocker; // Can't move, stop Stop(); // Blocking entity is in global trace_ent pBlocker = CBaseEntity::Instance( gpGlobals->trace_ent ); if (pBlocker) { DispatchBlocked( edict(), pBlocker->edict() ); } if ( pBlocker && m_moveWaitTime > 0 && pBlocker->IsMoving() && !pBlocker->IsPlayer() && (gpGlobals->time-m_flMoveWaitFinished) > 3.0 ) { // Can we still move toward our target? if ( flDist < m_flGroundSpeed ) { // No, Wait for a second m_flMoveWaitFinished = gpGlobals->time + m_moveWaitTime; return; } // Ok, still enough room to take a step } else { // try to triangulate around whatever is in the way. if ( FTriangulate( pev->origin, m_Route[ m_iRouteIndex ].vecLocation, flDist, pTargetEnt, &vecApex ) ) { InsertWaypoint( vecApex, bits_MF_TO_DETOUR ); RouteSimplify( pTargetEnt ); } else { // ALERT ( at_aiconsole, "Couldn't Triangulate\n" ); Stop(); // Only do this once until your route is cleared if ( m_moveWaitTime > 0 && !(m_afMemory & bits_MEMORY_MOVE_FAILED) ) { FRefreshRoute(); if ( FRouteClear() ) { TaskFail(); } else { // Don't get stuck if ( (gpGlobals->time - m_flMoveWaitFinished) < 0.2 ) Remember( bits_MEMORY_MOVE_FAILED ); m_flMoveWaitFinished = gpGlobals->time + 0.1; } } else { TaskFail(); ALERT( at_aiconsole, "%s Failed to move (%d)!\n", STRING(pev->classname), HasMemory( bits_MEMORY_MOVE_FAILED ) ); //ALERT( at_aiconsole, "%f, %f, %f\n", pev->origin.z, (pev->origin + (vecDir * flCheckDist)).z, m_Route[m_iRouteIndex].vecLocation.z ); } return; } } } // close enough to the target, now advance to the next target. This is done before actually reaching // the target so that we get a nice natural turn while moving. if ( ShouldAdvanceRoute( flWaypointDist ) )///!!!BUGBUG- magic number { AdvanceRoute( flWaypointDist ); } // Might be waiting for a door if ( m_flMoveWaitFinished > gpGlobals->time ) { Stop(); return; } // UNDONE: this is a hack to quit moving farther than it has looked ahead. if (flCheckDist < m_flGroundSpeed * flInterval) { flInterval = flCheckDist / m_flGroundSpeed; // ALERT( at_console, "%.02f\n", flInterval ); } MoveExecute( pTargetEnt, vecDir, flInterval ); if ( MovementIsComplete() ) { Stop(); RouteClear(); } } BOOL CBaseMonster:: ShouldAdvanceRoute( float flWaypointDist ) { if ( flWaypointDist <= MONSTER_CUT_CORNER_DIST ) { // ALERT( at_console, "cut %f\n", flWaypointDist ); return TRUE; } return FALSE; } void CBaseMonster::MoveExecute( CBaseEntity *pTargetEnt, const Vector &vecDir, float flInterval ) { // float flYaw = UTIL_VecToYaw ( m_Route[ m_iRouteIndex ].vecLocation - pev->origin );// build a yaw that points to the goal. // WALK_MOVE( ENT(pev), flYaw, m_flGroundSpeed * flInterval, WALKMOVE_NORMAL ); if ( m_IdealActivity != m_movementActivity ) m_IdealActivity = m_movementActivity; float flTotal = m_flGroundSpeed * pev->framerate * flInterval; float flStep; while (flTotal > 0.001) { // don't walk more than 16 units or stairs stop working flStep = min( 16.0, flTotal ); UTIL_MoveToOrigin ( ENT(pev), m_Route[ m_iRouteIndex ].vecLocation, flStep, MOVE_NORMAL ); flTotal -= flStep; } // ALERT( at_console, "dist %f\n", m_flGroundSpeed * pev->framerate * flInterval ); } //========================================================= // MonsterInit - after a monster is spawned, it needs to // be dropped into the world, checked for mobility problems, // and put on the proper path, if any. This function does // all of those things after the monster spawns. Any // initialization that should take place for all monsters // goes here. //========================================================= void CBaseMonster :: MonsterInit ( void ) { if (!g_pGameRules->FAllowMonsters()) { pev->flags |= FL_KILLME; // Post this because some monster code modifies class data after calling this function // REMOVE_ENTITY(ENT(pev)); return; } // Set fields common to all monsters pev->effects = 0; pev->takedamage = DAMAGE_AIM; pev->ideal_yaw = pev->angles.y; pev->max_health = pev->health; pev->deadflag = DEAD_NO; m_IdealMonsterState = MONSTERSTATE_IDLE;// Assume monster will be idle, until proven otherwise m_IdealActivity = ACT_IDLE; SetBits (pev->flags, FL_MONSTER); if ( pev->spawnflags & SF_MONSTER_HITMONSTERCLIP ) pev->flags |= FL_MONSTERCLIP; ClearSchedule(); RouteClear(); InitBoneControllers( ); // FIX: should be done in Spawn m_iHintNode = NO_NODE; m_afMemory = MEMORY_CLEAR; m_hEnemy = NULL; m_flDistTooFar = 1024.0; m_flDistLook = 2048.0; // set eye position SetEyePosition(); SetThink( MonsterInitThink ); pev->nextthink = gpGlobals->time + 0.1; SetUse ( MonsterUse ); } //========================================================= // MonsterInitThink - Calls StartMonster. Startmonster is // virtual, but this function cannot be //========================================================= void CBaseMonster :: MonsterInitThink ( void ) { StartMonster(); } //========================================================= // StartMonster - final bit of initization before a monster // is turned over to the AI. //========================================================= void CBaseMonster :: StartMonster ( void ) { // update capabilities if ( LookupActivity ( ACT_RANGE_ATTACK1 ) != ACTIVITY_NOT_AVAILABLE ) { m_afCapability |= bits_CAP_RANGE_ATTACK1; } if ( LookupActivity ( ACT_RANGE_ATTACK2 ) != ACTIVITY_NOT_AVAILABLE ) { m_afCapability |= bits_CAP_RANGE_ATTACK2; } if ( LookupActivity ( ACT_MELEE_ATTACK1 ) != ACTIVITY_NOT_AVAILABLE ) { m_afCapability |= bits_CAP_MELEE_ATTACK1; } if ( LookupActivity ( ACT_MELEE_ATTACK2 ) != ACTIVITY_NOT_AVAILABLE ) { m_afCapability |= bits_CAP_MELEE_ATTACK2; } // Raise monster off the floor one unit, then drop to floor if ( pev->movetype != MOVETYPE_FLY && !FBitSet( pev->spawnflags, SF_MONSTER_FALL_TO_GROUND ) ) { pev->origin.z += 1; DROP_TO_FLOOR ( ENT(pev) ); // Try to move the monster to make sure it's not stuck in a brush. if (!WALK_MOVE ( ENT(pev), 0, 0, WALKMOVE_NORMAL ) ) { ALERT(at_error, "Monster %s stuck in wall--level design error", STRING(pev->classname)); pev->effects = EF_BRIGHTFIELD; } } else { pev->flags &= ~FL_ONGROUND; } if ( !FStringNull(pev->target) )// this monster has a target { // Find the monster's initial target entity, stash it m_pGoalEnt = CBaseEntity::Instance( FIND_ENTITY_BY_TARGETNAME ( NULL, STRING( pev->target ) ) ); if ( !m_pGoalEnt ) { ALERT(at_error, "ReadyMonster()--%s couldn't find target %s", STRING(pev->classname), STRING(pev->target)); } else { // Monster will start turning towards his destination MakeIdealYaw ( m_pGoalEnt->pev->origin ); // JAY: How important is this error message? Big Momma doesn't obey this rule, so I took it out. #if 0 // At this point, we expect only a path_corner as initial goal if (!FClassnameIs( m_pGoalEnt->pev, "path_corner")) { ALERT(at_warning, "ReadyMonster--monster's initial goal '%s' is not a path_corner", STRING(pev->target)); } #endif // set the monster up to walk a path corner path. // !!!BUGBUG - this is a minor bit of a hack. // JAYJAY m_movementGoal = MOVEGOAL_PATHCORNER; if ( pev->movetype == MOVETYPE_FLY ) m_movementActivity = ACT_FLY; else m_movementActivity = ACT_WALK; if ( !FRefreshRoute() ) { ALERT ( at_aiconsole, "Can't Create Route!\n" ); } } } //SetActivity ( m_IdealActivity ); // Delay drop to floor to make sure each door in the level has had its chance to spawn // Spread think times so that they don't all happen at the same time (Carmack) SetThink ( CallMonsterThink ); pev->nextthink += RANDOM_FLOAT(0.1, 0.4); // spread think times. if ( !FStringNull(pev->targetname) )// wait until triggered { // UNDONE: Some scripted sequence monsters don't have an idle? SetActivity( ACT_IDLE ); } } void CBaseMonster :: MovementComplete( void ) { switch( m_iTaskStatus ) { case TASKSTATUS_NEW: case TASKSTATUS_RUNNING: m_iTaskStatus = TASKSTATUS_RUNNING_TASK; break; case TASKSTATUS_RUNNING_MOVEMENT: TaskComplete(); break; case TASKSTATUS_RUNNING_TASK: ALERT( at_error, "Movement completed twice!\n" ); break; case TASKSTATUS_COMPLETE: break; } m_movementGoal = MOVEGOAL_NONE; } int CBaseMonster::TaskIsRunning( void ) { if ( m_iTaskStatus != TASKSTATUS_COMPLETE && m_iTaskStatus != TASKSTATUS_RUNNING_MOVEMENT ) return 1; return 0; } //========================================================= // IRelationship - returns an integer that describes the // relationship between two types of monster. //========================================================= int CBaseMonster::IRelationship ( CBaseEntity *pTarget ) { static int iEnemy[14][14] = { // NONE MACH PLYR HPASS HMIL AMIL APASS AMONST APREY APRED INSECT PLRALY PBWPN ABWPN /*NONE*/ { R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO, R_NO, R_NO }, /*MACHINE*/ { R_NO ,R_NO ,R_DL ,R_DL ,R_NO ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_NO ,R_DL, R_DL, R_DL }, /*PLAYER*/ { R_NO ,R_DL ,R_NO ,R_NO ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_NO ,R_NO, R_DL, R_DL }, /*HUMANPASSIVE*/{ R_NO ,R_NO ,R_AL ,R_AL ,R_HT ,R_FR ,R_NO ,R_HT ,R_DL ,R_FR ,R_NO ,R_AL, R_NO, R_NO }, /*HUMANMILITAR*/{ R_NO ,R_NO ,R_HT ,R_DL ,R_NO ,R_HT ,R_DL ,R_DL ,R_DL ,R_DL ,R_NO ,R_HT, R_NO, R_NO }, /*ALIENMILITAR*/{ R_NO ,R_DL ,R_HT ,R_DL ,R_HT ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_DL, R_NO, R_NO }, /*ALIENPASSIVE*/{ R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO, R_NO, R_NO }, /*ALIENMONSTER*/{ R_NO ,R_DL ,R_DL ,R_DL ,R_DL ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_NO ,R_DL, R_NO, R_NO }, /*ALIENPREY */{ R_NO ,R_NO ,R_DL ,R_DL ,R_DL ,R_NO ,R_NO ,R_NO ,R_NO ,R_FR ,R_NO ,R_DL, R_NO, R_NO }, /*ALIENPREDATO*/{ R_NO ,R_NO ,R_DL ,R_DL ,R_DL ,R_NO ,R_NO ,R_NO ,R_HT ,R_DL ,R_NO ,R_DL, R_NO, R_NO }, /*INSECT*/ { R_FR ,R_FR ,R_FR ,R_FR ,R_FR ,R_NO ,R_FR ,R_FR ,R_FR ,R_FR ,R_NO ,R_FR, R_NO, R_NO }, /*PLAYERALLY*/ { R_NO ,R_DL ,R_AL ,R_AL ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_NO ,R_NO, R_NO, R_NO }, /*PBIOWEAPON*/ { R_NO ,R_NO ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_DL ,R_NO ,R_DL, R_NO, R_DL }, /*ABIOWEAPON*/ { R_NO ,R_NO ,R_DL ,R_DL ,R_DL ,R_AL ,R_NO ,R_DL ,R_DL ,R_NO ,R_NO ,R_DL, R_DL, R_NO } }; return iEnemy[ Classify() ][ pTarget->Classify() ]; } //========================================================= // FindCover - tries to find a nearby node that will hide // the caller from its enemy. // // If supplied, search will return a node at least as far // away as MinDist, but no farther than MaxDist. // if MaxDist isn't supplied, it defaults to a reasonable // value //========================================================= // UNDONE: Should this find the nearest node? //float CGraph::PathLength( int iStart, int iDest, int iHull, int afCapMask ) BOOL CBaseMonster :: FindCover ( Vector vecThreat, Vector vecViewOffset, float flMinDist, float flMaxDist ) { int i; int iMyHullIndex; int iMyNode; int iThreatNode; float flDist; Vector vecLookersOffset; TraceResult tr; if ( !flMaxDist ) { // user didn't supply a MaxDist, so work up a crazy one. flMaxDist = 784; } if ( flMinDist > 0.5 * flMaxDist) { #if _DEBUG ALERT ( at_console, "FindCover MinDist (%.0f) too close to MaxDist (%.0f)\n", flMinDist, flMaxDist ); #endif flMinDist = 0.5 * flMaxDist; } if ( !WorldGraph.m_fGraphPresent || !WorldGraph.m_fGraphPointersSet ) { ALERT ( at_aiconsole, "Graph not ready for findcover!\n" ); return FALSE; } iMyNode = WorldGraph.FindNearestNode( pev->origin, this ); iThreatNode = WorldGraph.FindNearestNode ( vecThreat, this ); iMyHullIndex = WorldGraph.HullIndex( this ); if ( iMyNode == NO_NODE ) { ALERT ( at_aiconsole, "FindCover() - %s has no nearest node!\n", STRING(pev->classname)); return FALSE; } if ( iThreatNode == NO_NODE ) { // ALERT ( at_aiconsole, "FindCover() - Threat has no nearest node!\n" ); iThreatNode = iMyNode; // return FALSE; } vecLookersOffset = vecThreat + vecViewOffset;// calculate location of enemy's eyes // we'll do a rough sample to find nodes that are relatively nearby for ( i = 0 ; i < WorldGraph.m_cNodes ; i++ ) { int nodeNumber = (i + WorldGraph.m_iLastCoverSearch) % WorldGraph.m_cNodes; CNode &node = WorldGraph.Node( nodeNumber ); WorldGraph.m_iLastCoverSearch = nodeNumber + 1; // next monster that searches for cover node will start where we left off here. // could use an optimization here!! flDist = ( pev->origin - node.m_vecOrigin ).Length(); // DON'T do the trace check on a node that is farther away than a node that we've already found to // provide cover! Also make sure the node is within the mins/maxs of the search. if ( flDist >= flMinDist && flDist < flMaxDist ) { UTIL_TraceLine ( node.m_vecOrigin + vecViewOffset, vecLookersOffset, ignore_monsters, ignore_glass, ENT(pev), &tr ); // if this node will block the threat's line of sight to me... if ( tr.flFraction != 1.0 ) { // ..and is also closer to me than the threat, or the same distance from myself and the threat the node is good. if ( ( iMyNode == iThreatNode ) || WorldGraph.PathLength( iMyNode, nodeNumber, iMyHullIndex, m_afCapability ) <= WorldGraph.PathLength( iThreatNode, nodeNumber, iMyHullIndex, m_afCapability ) ) { if ( FValidateCover ( node.m_vecOrigin ) && MoveToLocation( ACT_RUN, 0, node.m_vecOrigin ) ) { /* MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY ); WRITE_BYTE( TE_SHOWLINE); WRITE_COORD( node.m_vecOrigin.x ); WRITE_COORD( node.m_vecOrigin.y ); WRITE_COORD( node.m_vecOrigin.z ); WRITE_COORD( vecLookersOffset.x ); WRITE_COORD( vecLookersOffset.y ); WRITE_COORD( vecLookersOffset.z ); MESSAGE_END(); */ return TRUE; } } } } } return FALSE; } //========================================================= // BuildNearestRoute - tries to build a route as close to the target // as possible, even if there isn't a path to the final point. // // If supplied, search will return a node at least as far // away as MinDist from vecThreat, but no farther than MaxDist. // if MaxDist isn't supplied, it defaults to a reasonable // value //========================================================= BOOL CBaseMonster :: BuildNearestRoute ( Vector vecThreat, Vector vecViewOffset, float flMinDist, float flMaxDist ) { int i; int iMyHullIndex; int iMyNode; float flDist; Vector vecLookersOffset; TraceResult tr; if ( !flMaxDist ) { // user didn't supply a MaxDist, so work up a crazy one. flMaxDist = 784; } if ( flMinDist > 0.5 * flMaxDist) { #if _DEBUG ALERT ( at_console, "FindCover MinDist (%.0f) too close to MaxDist (%.0f)\n", flMinDist, flMaxDist ); #endif flMinDist = 0.5 * flMaxDist; } if ( !WorldGraph.m_fGraphPresent || !WorldGraph.m_fGraphPointersSet ) { ALERT ( at_aiconsole, "Graph not ready for BuildNearestRoute!\n" ); return FALSE; } iMyNode = WorldGraph.FindNearestNode( pev->origin, this ); iMyHullIndex = WorldGraph.HullIndex( this ); if ( iMyNode == NO_NODE ) { ALERT ( at_aiconsole, "BuildNearestRoute() - %s has no nearest node!\n", STRING(pev->classname)); return FALSE; } vecLookersOffset = vecThreat + vecViewOffset;// calculate location of enemy's eyes // we'll do a rough sample to find nodes that are relatively nearby for ( i = 0 ; i < WorldGraph.m_cNodes ; i++ ) { int nodeNumber = (i + WorldGraph.m_iLastCoverSearch) % WorldGraph.m_cNodes; CNode &node = WorldGraph.Node( nodeNumber ); WorldGraph.m_iLastCoverSearch = nodeNumber + 1; // next monster that searches for cover node will start where we left off here. // can I get there? if (WorldGraph.NextNodeInRoute( iMyNode, nodeNumber, iMyHullIndex, 0 ) != iMyNode) { flDist = ( vecThreat - node.m_vecOrigin ).Length(); // is it close? if ( flDist > flMinDist && flDist < flMaxDist) { // can I see where I want to be from there? UTIL_TraceLine( node.m_vecOrigin + pev->view_ofs, vecLookersOffset, ignore_monsters, edict(), &tr ); if (tr.flFraction == 1.0) { // try to actually get there if ( BuildRoute ( node.m_vecOrigin, bits_MF_TO_LOCATION, NULL ) ) { flMaxDist = flDist; m_vecMoveGoal = node.m_vecOrigin; return TRUE; // UNDONE: keep looking for something closer! } } } } } return FALSE; } //========================================================= // BestVisibleEnemy - this functions searches the link // list whose head is the caller's m_pLink field, and returns // a pointer to the enemy entity in that list that is nearest the // caller. // // !!!UNDONE - currently, this only returns the closest enemy. // we'll want to consider distance, relationship, attack types, back turned, etc. //========================================================= CBaseEntity *CBaseMonster :: BestVisibleEnemy ( void ) { CBaseEntity *pReturn; CBaseEntity *pNextEnt; int iNearest; int iDist; int iBestRelationship; iNearest = 8192;// so first visible entity will become the closest. pNextEnt = m_pLink; pReturn = NULL; iBestRelationship = R_NO; while ( pNextEnt != NULL ) { if ( pNextEnt->IsAlive() ) { if ( IRelationship( pNextEnt) > iBestRelationship ) { // this entity is disliked MORE than the entity that we // currently think is the best visible enemy. No need to do // a distance check, just get mad at this one for now. iBestRelationship = IRelationship ( pNextEnt ); iNearest = ( pNextEnt->pev->origin - pev->origin ).Length(); pReturn = pNextEnt; } else if ( IRelationship( pNextEnt) == iBestRelationship ) { // this entity is disliked just as much as the entity that // we currently think is the best visible enemy, so we only // get mad at it if it is closer. iDist = ( pNextEnt->pev->origin - pev->origin ).Length(); if ( iDist <= iNearest ) { iNearest = iDist; iBestRelationship = IRelationship ( pNextEnt ); pReturn = pNextEnt; } } } pNextEnt = pNextEnt->m_pLink; } return pReturn; } //========================================================= // MakeIdealYaw - gets a yaw value for the caller that would // face the supplied vector. Value is stuffed into the monster's // ideal_yaw //========================================================= void CBaseMonster :: MakeIdealYaw( Vector vecTarget ) { Vector vecProjection; // strafing monster needs to face 90 degrees away from its goal if ( m_movementActivity == ACT_STRAFE_LEFT ) { vecProjection.x = -vecTarget.y; vecProjection.y = vecTarget.x; pev->ideal_yaw = UTIL_VecToYaw( vecProjection - pev->origin ); } else if ( m_movementActivity == ACT_STRAFE_RIGHT ) { vecProjection.x = vecTarget.y; vecProjection.y = vecTarget.x; pev->ideal_yaw = UTIL_VecToYaw( vecProjection - pev->origin ); } else { pev->ideal_yaw = UTIL_VecToYaw ( vecTarget - pev->origin ); } } //========================================================= // FlYawDiff - returns the difference ( in degrees ) between // monster's current yaw and ideal_yaw // // Positive result is left turn, negative is right turn //========================================================= float CBaseMonster::FlYawDiff ( void ) { float flCurrentYaw; flCurrentYaw = UTIL_AngleMod( pev->angles.y ); if ( flCurrentYaw == pev->ideal_yaw ) { return 0; } return UTIL_AngleDiff( pev->ideal_yaw, flCurrentYaw ); } //========================================================= // Changeyaw - turns a monster towards its ideal_yaw //========================================================= float CBaseMonster::ChangeYaw ( int yawSpeed ) { float ideal, current, move, speed; current = UTIL_AngleMod( pev->angles.y ); ideal = pev->ideal_yaw; if (current != ideal) { speed = (float)yawSpeed * gpGlobals->frametime * 10; move = ideal - current; if (ideal > current) { if (move >= 180) move = move - 360; } else { if (move <= -180) move = move + 360; } if (move > 0) {// turning to the monster's left if (move > speed) move = speed; } else {// turning to the monster's right if (move < -speed) move = -speed; } pev->angles.y = UTIL_AngleMod (current + move); // turn head in desired direction only if they have a turnable head if (m_afCapability & bits_CAP_TURN_HEAD) { float yaw = pev->ideal_yaw - pev->angles.y; if (yaw > 180) yaw -= 360; if (yaw < -180) yaw += 360; // yaw *= 0.8; SetBoneController( 0, yaw ); } } else move = 0; return move; } //========================================================= // VecToYaw - turns a directional vector into a yaw value // that points down that vector. //========================================================= float CBaseMonster::VecToYaw ( Vector vecDir ) { if (vecDir.x == 0 && vecDir.y == 0 && vecDir.z == 0) return pev->angles.y; return UTIL_VecToYaw( vecDir ); } //========================================================= // SetEyePosition // // queries the monster's model for $eyeposition and copies // that vector to the monster's view_ofs // //========================================================= void CBaseMonster :: SetEyePosition ( void ) { Vector vecEyePosition; void *pmodel = GET_MODEL_PTR( ENT(pev) ); GetEyePosition( pmodel, vecEyePosition ); pev->view_ofs = vecEyePosition; if ( pev->view_ofs == g_vecZero ) { ALERT ( at_aiconsole, "%s has no view_ofs!\n", STRING ( pev->classname ) ); } } void CBaseMonster :: HandleAnimEvent( MonsterEvent_t *pEvent ) { switch( pEvent->event ) { case SCRIPT_EVENT_DEAD: if ( m_MonsterState == MONSTERSTATE_SCRIPT ) { pev->deadflag = DEAD_DYING; // Kill me now! (and fade out when CineCleanup() is called) #if _DEBUG ALERT( at_aiconsole, "Death event: %s\n", STRING(pev->classname) ); #endif pev->health = 0; } #if _DEBUG else ALERT( at_aiconsole, "INVALID death event:%s\n", STRING(pev->classname) ); #endif break; case SCRIPT_EVENT_NOT_DEAD: if ( m_MonsterState == MONSTERSTATE_SCRIPT ) { pev->deadflag = DEAD_NO; // This is for life/death sequences where the player can determine whether a character is dead or alive after the script pev->health = pev->max_health; } break; case SCRIPT_EVENT_SOUND: // Play a named wave file EMIT_SOUND( edict(), CHAN_BODY, pEvent->options, 1.0, ATTN_IDLE ); break; case SCRIPT_EVENT_SOUND_VOICE: EMIT_SOUND( edict(), CHAN_VOICE, pEvent->options, 1.0, ATTN_IDLE ); break; case SCRIPT_EVENT_SENTENCE_RND1: // Play a named sentence group 33% of the time if (RANDOM_LONG(0,2) == 0) break; // fall through... case SCRIPT_EVENT_SENTENCE: // Play a named sentence group SENTENCEG_PlayRndSz( edict(), pEvent->options, 1.0, ATTN_IDLE, 0, 100 ); break; case SCRIPT_EVENT_FIREEVENT: // Fire a trigger FireTargets( pEvent->options, this, this, USE_TOGGLE, 0 ); break; case SCRIPT_EVENT_NOINTERRUPT: // Can't be interrupted from now on if ( m_pCine ) m_pCine->AllowInterrupt( FALSE ); break; case SCRIPT_EVENT_CANINTERRUPT: // OK to interrupt now if ( m_pCine ) m_pCine->AllowInterrupt( TRUE ); break; #if 0 case SCRIPT_EVENT_INAIR: // Don't DROP_TO_FLOOR() case SCRIPT_EVENT_ENDANIMATION: // Set ending animation sequence to break; #endif case MONSTER_EVENT_BODYDROP_HEAVY: if ( pev->flags & FL_ONGROUND ) { if ( RANDOM_LONG( 0, 1 ) == 0 ) { EMIT_SOUND_DYN( ENT(pev), CHAN_BODY, "common/bodydrop3.wav", 1, ATTN_NORM, 0, 90 ); } else { EMIT_SOUND_DYN( ENT(pev), CHAN_BODY, "common/bodydrop4.wav", 1, ATTN_NORM, 0, 90 ); } } break; case MONSTER_EVENT_BODYDROP_LIGHT: if ( pev->flags & FL_ONGROUND ) { if ( RANDOM_LONG( 0, 1 ) == 0 ) { EMIT_SOUND( ENT(pev), CHAN_BODY, "common/bodydrop3.wav", 1, ATTN_NORM ); } else { EMIT_SOUND( ENT(pev), CHAN_BODY, "common/bodydrop4.wav", 1, ATTN_NORM ); } } break; case MONSTER_EVENT_SWISHSOUND: { // NO MONSTER may use this anim event unless that monster's precache precaches this sound!!! EMIT_SOUND( ENT(pev), CHAN_BODY, "zombie/claw_miss2.wav", 1, ATTN_NORM ); break; } default: ALERT( at_aiconsole, "Unhandled animation event %d for %s\n", pEvent->event, STRING(pev->classname) ); break; } } // Combat Vector CBaseMonster :: GetGunPosition( ) { UTIL_MakeVectors(pev->angles); // Vector vecSrc = pev->origin + gpGlobals->v_forward * 10; //vecSrc.z = pevShooter->absmin.z + pevShooter->size.z * 0.7; //vecSrc.z = pev->origin.z + (pev->view_ofs.z - 4); Vector vecSrc = pev->origin + gpGlobals->v_forward * m_HackedGunPos.y + gpGlobals->v_right * m_HackedGunPos.x + gpGlobals->v_up * m_HackedGunPos.z; return vecSrc; } //========================================================= // NODE GRAPH //========================================================= //========================================================= // FGetNodeRoute - tries to build an entire node path from // the callers origin to the passed vector. If this is // possible, ROUTE_SIZE waypoints will be copied into the // callers m_Route. TRUE is returned if the operation // succeeds (path is valid) or FALSE if failed (no path // exists ) //========================================================= BOOL CBaseMonster :: FGetNodeRoute ( Vector vecDest ) { int iPath[ MAX_PATH_SIZE ]; int iSrcNode, iDestNode; int iResult; int i; int iNumToCopy; iSrcNode = WorldGraph.FindNearestNode ( pev->origin, this ); iDestNode = WorldGraph.FindNearestNode ( vecDest, this ); if ( iSrcNode == -1 ) { // no node nearest self // ALERT ( at_aiconsole, "FGetNodeRoute: No valid node near self!\n" ); return FALSE; } else if ( iDestNode == -1 ) { // no node nearest target // ALERT ( at_aiconsole, "FGetNodeRoute: No valid node near target!\n" ); return FALSE; } // valid src and dest nodes were found, so it's safe to proceed with // find shortest path int iNodeHull = WorldGraph.HullIndex( this ); // make this a monster virtual function iResult = WorldGraph.FindShortestPath ( iPath, iSrcNode, iDestNode, iNodeHull, m_afCapability ); if ( !iResult ) { #if 1 ALERT ( at_aiconsole, "No Path from %d to %d!\n", iSrcNode, iDestNode ); return FALSE; #else BOOL bRoutingSave = WorldGraph.m_fRoutingComplete; WorldGraph.m_fRoutingComplete = FALSE; iResult = WorldGraph.FindShortestPath(iPath, iSrcNode, iDestNode, iNodeHull, m_afCapability); WorldGraph.m_fRoutingComplete = bRoutingSave; if ( !iResult ) { ALERT ( at_aiconsole, "No Path from %d to %d!\n", iSrcNode, iDestNode ); return FALSE; } else { ALERT ( at_aiconsole, "Routing is inconsistent!" ); } #endif } // there's a valid path within iPath now, so now we will fill the route array // up with as many of the waypoints as it will hold. // don't copy ROUTE_SIZE entries if the path returned is shorter // than ROUTE_SIZE!!! if ( iResult < ROUTE_SIZE ) { iNumToCopy = iResult; } else { iNumToCopy = ROUTE_SIZE; } for ( i = 0 ; i < iNumToCopy; i++ ) { m_Route[ i ].vecLocation = WorldGraph.m_pNodes[ iPath[ i ] ].m_vecOrigin; m_Route[ i ].iType = bits_MF_TO_NODE; } if ( iNumToCopy < ROUTE_SIZE ) { m_Route[ iNumToCopy ].vecLocation = vecDest; m_Route[ iNumToCopy ].iType |= bits_MF_IS_GOAL; } return TRUE; } //========================================================= // FindHintNode //========================================================= int CBaseMonster :: FindHintNode ( void ) { int i; TraceResult tr; if ( !WorldGraph.m_fGraphPresent ) { ALERT ( at_aiconsole, "find_hintnode: graph not ready!\n" ); return NO_NODE; } if ( WorldGraph.m_iLastActiveIdleSearch >= WorldGraph.m_cNodes ) { WorldGraph.m_iLastActiveIdleSearch = 0; } for ( i = 0; i < WorldGraph.m_cNodes ; i++ ) { int nodeNumber = (i + WorldGraph.m_iLastActiveIdleSearch) % WorldGraph.m_cNodes; CNode &node = WorldGraph.Node( nodeNumber ); if ( node.m_sHintType ) { // this node has a hint. Take it if it is visible, the monster likes it, and the monster has an animation to match the hint's activity. if ( FValidateHintType ( node.m_sHintType ) ) { if ( !node.m_sHintActivity || LookupActivity ( node.m_sHintActivity ) != ACTIVITY_NOT_AVAILABLE ) { UTIL_TraceLine ( pev->origin + pev->view_ofs, node.m_vecOrigin + pev->view_ofs, ignore_monsters, ENT(pev), &tr ); if ( tr.flFraction == 1.0 ) { WorldGraph.m_iLastActiveIdleSearch = nodeNumber + 1; // next monster that searches for hint nodes will start where we left off. return nodeNumber;// take it! } } } } } WorldGraph.m_iLastActiveIdleSearch = 0;// start at the top of the list for the next search. return NO_NODE; } void CBaseMonster::ReportAIState( void ) { ALERT_TYPE level = at_console; static const char *pStateNames[] = { "None", "Idle", "Combat", "Alert", "Hunt", "Prone", "Scripted", "Dead" }; ALERT( level, "%s: ", STRING(pev->classname) ); if ( (int)m_MonsterState < ARRAYSIZE(pStateNames) ) ALERT( level, "State: %s, ", pStateNames[m_MonsterState] ); int i = 0; while ( activity_map[i].type != 0 ) { if ( activity_map[i].type == (int)m_Activity ) { ALERT( level, "Activity %s, ", activity_map[i].name ); break; } i++; } if ( m_pSchedule ) { const char *pName = NULL; pName = m_pSchedule->pName; if ( !pName ) pName = "Unknown"; ALERT( level, "Schedule %s, ", pName ); Task_t *pTask = GetTask(); if ( pTask ) ALERT( level, "Task %d (#%d), ", pTask->iTask, m_iScheduleIndex ); } else ALERT( level, "No Schedule, " ); if ( m_hEnemy != NULL ) ALERT( level, "\nEnemy is %s", STRING(m_hEnemy->pev->classname) ); else ALERT( level, "No enemy" ); if ( IsMoving() ) { ALERT( level, " Moving " ); if ( m_flMoveWaitFinished > gpGlobals->time ) ALERT( level, ": Stopped for %.2f. ", m_flMoveWaitFinished - gpGlobals->time ); else if ( m_IdealActivity == GetStoppedActivity() ) ALERT( level, ": In stopped anim. " ); } ALERT( level, "\n" ); ALERT( level, "Yaw speed:%3.1f,Health: %3.1f\n", pev->yaw_speed, pev->health ); if ( pev->spawnflags & SF_MONSTER_PRISONER ) ALERT( level, " PRISONER! " ); if ( pev->spawnflags & SF_MONSTER_PREDISASTER ) ALERT( level, " Pre-Disaster! " ); ALERT( level, "\n" ); } //========================================================= // KeyValue // // !!! netname entvar field is used in squadmonster for groupname!!! //========================================================= void CBaseMonster :: KeyValue( KeyValueData *pkvd ) { if (FStrEq(pkvd->szKeyName, "TriggerTarget")) { m_iszTriggerTarget = ALLOC_STRING( pkvd->szValue ); pkvd->fHandled = TRUE; } else if (FStrEq(pkvd->szKeyName, "TriggerCondition") ) { m_iTriggerCondition = atoi( pkvd->szValue ); pkvd->fHandled = TRUE; } else { CBaseToggle::KeyValue( pkvd ); } } //========================================================= // FCheckAITrigger - checks the monster's AI Trigger Conditions, // if there is a condition, then checks to see if condition is // met. If yes, the monster's TriggerTarget is fired. // // Returns TRUE if the target is fired. //========================================================= BOOL CBaseMonster :: FCheckAITrigger ( void ) { BOOL fFireTarget; if ( m_iTriggerCondition == AITRIGGER_NONE ) { // no conditions, so this trigger is never fired. return FALSE; } fFireTarget = FALSE; switch ( m_iTriggerCondition ) { case AITRIGGER_SEEPLAYER_ANGRY_AT_PLAYER: if ( m_hEnemy != NULL && m_hEnemy->IsPlayer() && HasConditions ( bits_COND_SEE_ENEMY ) ) { fFireTarget = TRUE; } break; case AITRIGGER_SEEPLAYER_UNCONDITIONAL: if ( HasConditions ( bits_COND_SEE_CLIENT ) ) { fFireTarget = TRUE; } break; case AITRIGGER_SEEPLAYER_NOT_IN_COMBAT: if ( HasConditions ( bits_COND_SEE_CLIENT ) && m_MonsterState != MONSTERSTATE_COMBAT && m_MonsterState != MONSTERSTATE_PRONE && m_MonsterState != MONSTERSTATE_SCRIPT) { fFireTarget = TRUE; } break; case AITRIGGER_TAKEDAMAGE: if ( m_afConditions & ( bits_COND_LIGHT_DAMAGE | bits_COND_HEAVY_DAMAGE ) ) { fFireTarget = TRUE; } break; case AITRIGGER_DEATH: if ( pev->deadflag != DEAD_NO ) { fFireTarget = TRUE; } break; case AITRIGGER_HALFHEALTH: if ( IsAlive() && pev->health <= ( pev->max_health / 2 ) ) { fFireTarget = TRUE; } break; /* // !!!UNDONE - no persistant game state that allows us to track these two. case AITRIGGER_SQUADMEMBERDIE: break; case AITRIGGER_SQUADLEADERDIE: break; */ case AITRIGGER_HEARWORLD: if ( m_afConditions & bits_COND_HEAR_SOUND && m_afSoundTypes & bits_SOUND_WORLD ) { fFireTarget = TRUE; } break; case AITRIGGER_HEARPLAYER: if ( m_afConditions & bits_COND_HEAR_SOUND && m_afSoundTypes & bits_SOUND_PLAYER ) { fFireTarget = TRUE; } break; case AITRIGGER_HEARCOMBAT: if ( m_afConditions & bits_COND_HEAR_SOUND && m_afSoundTypes & bits_SOUND_COMBAT ) { fFireTarget = TRUE; } break; } if ( fFireTarget ) { // fire the target, then set the trigger conditions to NONE so we don't fire again ALERT ( at_aiconsole, "AI Trigger Fire Target\n" ); FireTargets( STRING( m_iszTriggerTarget ), this, this, USE_TOGGLE, 0 ); m_iTriggerCondition = AITRIGGER_NONE; return TRUE; } return FALSE; } //========================================================= // CanPlaySequence - determines whether or not the monster // can play the scripted sequence or AI sequence that is // trying to possess it. If DisregardState is set, the monster // will be sucked into the script no matter what state it is // in. ONLY Scripted AI ents should allow this. //========================================================= int CBaseMonster :: CanPlaySequence( BOOL fDisregardMonsterState, int interruptLevel ) { if ( m_pCine || !IsAlive() || m_MonsterState == MONSTERSTATE_PRONE ) { // monster is already running a scripted sequence or dead! return FALSE; } if ( fDisregardMonsterState ) { // ok to go, no matter what the monster state. (scripted AI) return TRUE; } if ( m_MonsterState == MONSTERSTATE_NONE || m_MonsterState == MONSTERSTATE_IDLE || m_IdealMonsterState == MONSTERSTATE_IDLE ) { // ok to go, but only in these states return TRUE; } if ( m_MonsterState == MONSTERSTATE_ALERT && interruptLevel >= SS_INTERRUPT_BY_NAME ) return TRUE; // unknown situation return FALSE; } //========================================================= // FindLateralCover - attempts to locate a spot in the world // directly to the left or right of the caller that will // conceal them from view of pSightEnt //========================================================= #define COVER_CHECKS 5// how many checks are made #define COVER_DELTA 48// distance between checks BOOL CBaseMonster :: FindLateralCover ( const Vector &vecThreat, const Vector &vecViewOffset ) { TraceResult tr; Vector vecBestOnLeft; Vector vecBestOnRight; Vector vecLeftTest; Vector vecRightTest; Vector vecStepRight; int i; UTIL_MakeVectors ( pev->angles ); vecStepRight = gpGlobals->v_right * COVER_DELTA; vecStepRight.z = 0; vecLeftTest = vecRightTest = pev->origin; for ( i = 0 ; i < COVER_CHECKS ; i++ ) { vecLeftTest = vecLeftTest - vecStepRight; vecRightTest = vecRightTest + vecStepRight; // it's faster to check the SightEnt's visibility to the potential spot than to check the local move, so we do that first. UTIL_TraceLine( vecThreat + vecViewOffset, vecLeftTest + pev->view_ofs, ignore_monsters, ignore_glass, ENT(pev)/*pentIgnore*/, &tr); if (tr.flFraction != 1.0) { if ( FValidateCover ( vecLeftTest ) && CheckLocalMove( pev->origin, vecLeftTest, NULL, NULL ) == LOCALMOVE_VALID ) { if ( MoveToLocation( ACT_RUN, 0, vecLeftTest ) ) { return TRUE; } } } // it's faster to check the SightEnt's visibility to the potential spot than to check the local move, so we do that first. UTIL_TraceLine(vecThreat + vecViewOffset, vecRightTest + pev->view_ofs, ignore_monsters, ignore_glass, ENT(pev)/*pentIgnore*/, &tr); if ( tr.flFraction != 1.0 ) { if ( FValidateCover ( vecRightTest ) && CheckLocalMove( pev->origin, vecRightTest, NULL, NULL ) == LOCALMOVE_VALID ) { if ( MoveToLocation( ACT_RUN, 0, vecRightTest ) ) { return TRUE; } } } } return FALSE; } Vector CBaseMonster :: ShootAtEnemy( const Vector &shootOrigin ) { CBaseEntity *pEnemy = m_hEnemy; if ( pEnemy ) { return ( (pEnemy->BodyTarget( shootOrigin ) - pEnemy->pev->origin) + m_vecEnemyLKP - shootOrigin ).Normalize(); } else return gpGlobals->v_forward; } //========================================================= // FacingIdeal - tells us if a monster is facing its ideal // yaw. Created this function because many spots in the // code were checking the yawdiff against this magic // number. Nicer to have it in one place if we're gonna // be stuck with it. //========================================================= BOOL CBaseMonster :: FacingIdeal( void ) { if ( fabs( FlYawDiff() ) <= 0.006 )//!!!BUGBUG - no magic numbers!!! { return TRUE; } return FALSE; } //========================================================= // FCanActiveIdle //========================================================= BOOL CBaseMonster :: FCanActiveIdle ( void ) { /* if ( m_MonsterState == MONSTERSTATE_IDLE && m_IdealMonsterState == MONSTERSTATE_IDLE && !IsMoving() ) { return TRUE; } */ return FALSE; } void CBaseMonster::PlaySentence( const char *pszSentence, float duration, float volume, float attenuation ) { if ( pszSentence && IsAlive() ) { if ( pszSentence[0] == '!' ) EMIT_SOUND_DYN( edict(), CHAN_VOICE, pszSentence, volume, attenuation, 0, PITCH_NORM ); else SENTENCEG_PlayRndSz( edict(), pszSentence, volume, attenuation, 0, PITCH_NORM ); } } void CBaseMonster::PlayScriptedSentence( const char *pszSentence, float duration, float volume, float attenuation, BOOL bConcurrent, CBaseEntity *pListener ) { PlaySentence( pszSentence, duration, volume, attenuation ); } void CBaseMonster::SentenceStop( void ) { EMIT_SOUND( edict(), CHAN_VOICE, "common/null.wav", 1.0, ATTN_IDLE ); } void CBaseMonster::CorpseFallThink( void ) { if ( pev->flags & FL_ONGROUND ) { SetThink ( NULL ); SetSequenceBox( ); UTIL_SetOrigin( pev, pev->origin );// link into world. } else pev->nextthink = gpGlobals->time + 0.1; } // Call after animation/pose is set up void CBaseMonster :: MonsterInitDead( void ) { InitBoneControllers(); pev->solid = SOLID_BBOX; pev->movetype = MOVETYPE_TOSS;// so he'll fall to ground pev->frame = 0; ResetSequenceInfo( ); pev->framerate = 0; // Copy health pev->max_health = pev->health; pev->deadflag = DEAD_DEAD; UTIL_SetSize(pev, g_vecZero, g_vecZero ); UTIL_SetOrigin( pev, pev->origin ); // Setup health counters, etc. BecomeDead(); SetThink( CorpseFallThink ); pev->nextthink = gpGlobals->time + 0.5; } //========================================================= // BBoxIsFlat - check to see if the monster's bounding box // is lying flat on a surface (traces from all four corners // are same length.) //========================================================= BOOL CBaseMonster :: BBoxFlat ( void ) { TraceResult tr; Vector vecPoint; float flXSize, flYSize; float flLength; float flLength2; flXSize = pev->size.x / 2; flYSize = pev->size.y / 2; vecPoint.x = pev->origin.x + flXSize; vecPoint.y = pev->origin.y + flYSize; vecPoint.z = pev->origin.z; UTIL_TraceLine ( vecPoint, vecPoint - Vector ( 0, 0, 100 ), ignore_monsters, ENT(pev), &tr ); flLength = (vecPoint - tr.vecEndPos).Length(); vecPoint.x = pev->origin.x - flXSize; vecPoint.y = pev->origin.y - flYSize; UTIL_TraceLine ( vecPoint, vecPoint - Vector ( 0, 0, 100 ), ignore_monsters, ENT(pev), &tr ); flLength2 = (vecPoint - tr.vecEndPos).Length(); if ( flLength2 > flLength ) { return FALSE; } flLength = flLength2; vecPoint.x = pev->origin.x - flXSize; vecPoint.y = pev->origin.y + flYSize; UTIL_TraceLine ( vecPoint, vecPoint - Vector ( 0, 0, 100 ), ignore_monsters, ENT(pev), &tr ); flLength2 = (vecPoint - tr.vecEndPos).Length(); if ( flLength2 > flLength ) { return FALSE; } flLength = flLength2; vecPoint.x = pev->origin.x + flXSize; vecPoint.y = pev->origin.y - flYSize; UTIL_TraceLine ( vecPoint, vecPoint - Vector ( 0, 0, 100 ), ignore_monsters, ENT(pev), &tr ); flLength2 = (vecPoint - tr.vecEndPos).Length(); if ( flLength2 > flLength ) { return FALSE; } flLength = flLength2; return TRUE; } //========================================================= // Get Enemy - tries to find the best suitable enemy for the monster. //========================================================= BOOL CBaseMonster :: GetEnemy ( void ) { CBaseEntity *pNewEnemy; if ( HasConditions(bits_COND_SEE_HATE | bits_COND_SEE_DISLIKE | bits_COND_SEE_NEMESIS) ) { pNewEnemy = BestVisibleEnemy(); if ( pNewEnemy != m_hEnemy && pNewEnemy != NULL) { // DO NOT mess with the monster's m_hEnemy pointer unless the schedule the monster is currently running will be interrupted // by COND_NEW_ENEMY. This will eliminate the problem of monsters getting a new enemy while they are in a schedule that doesn't care, // and then not realizing it by the time they get to a schedule that does. I don't feel this is a good permanent fix. if ( m_pSchedule ) { if ( m_pSchedule->iInterruptMask & bits_COND_NEW_ENEMY ) { PushEnemy( m_hEnemy, m_vecEnemyLKP ); SetConditions(bits_COND_NEW_ENEMY); m_hEnemy = pNewEnemy; m_vecEnemyLKP = m_hEnemy->pev->origin; } // if the new enemy has an owner, take that one as well if (pNewEnemy->pev->owner != NULL) { CBaseEntity *pOwner = GetMonsterPointer( pNewEnemy->pev->owner ); if ( pOwner && (pOwner->pev->flags & FL_MONSTER) && IRelationship( pOwner ) != R_NO ) PushEnemy( pOwner, m_vecEnemyLKP ); } } } } // remember old enemies if (m_hEnemy == NULL && PopEnemy( )) { if ( m_pSchedule ) { if ( m_pSchedule->iInterruptMask & bits_COND_NEW_ENEMY ) { SetConditions(bits_COND_NEW_ENEMY); } } } if ( m_hEnemy != NULL ) { // monster has an enemy. return TRUE; } return FALSE;// monster has no enemy } //========================================================= // DropItem - dead monster drops named item //========================================================= CBaseEntity* CBaseMonster :: DropItem ( char *pszItemName, const Vector &vecPos, const Vector &vecAng ) { if ( !pszItemName ) { ALERT ( at_console, "DropItem() - No item name!\n" ); return NULL; } CBaseEntity *pItem = CBaseEntity::Create( pszItemName, vecPos, vecAng, edict() ); if ( pItem ) { // do we want this behavior to be default?! (sjb) pItem->pev->velocity = pev->velocity; pItem->pev->avelocity = Vector ( 0, RANDOM_FLOAT( 0, 100 ), 0 ); return pItem; } else { ALERT ( at_console, "DropItem() - Didn't create!\n" ); return FALSE; } } BOOL CBaseMonster :: ShouldFadeOnDeath( void ) { // if flagged to fade out or I have an owner (I came from a monster spawner) if ( (pev->spawnflags & SF_MONSTER_FADECORPSE) || !FNullEnt( pev->owner ) ) return TRUE; return FALSE; }