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halflife-sdk/dlls/monsters.cpp

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/***
*
* 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 "squadmonster.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;
}
//=========================================================
// BarnacleVictimBitten - called
// by Barnacle victims when the barnacle pulls their head
// into its mouth
//=========================================================
void CBaseMonster :: BarnacleVictimBitten ( entvars_t *pevBarnacle )
{
Schedule_t *pNewSchedule;
pNewSchedule = GetScheduleOfType( SCHED_BARNACLE_VICTIM_CHOMP );
if ( pNewSchedule )
{
ChangeSchedule( pNewSchedule );
}
}
//=========================================================
// BarnacleVictimReleased - called by barnacle victims when
// the host barnacle is killed.
//=========================================================
void CBaseMonster :: BarnacleVictimReleased ( void )
{
m_IdealMonsterState = MONSTERSTATE_IDLE;
pev->velocity = g_vecZero;
pev->movetype = MOVETYPE_STEP;
}
//=========================================================
// 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.
RunAI();
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( &CBaseMonster::MonsterInitThink );
pev->nextthink = gpGlobals->time + 0.1;
SetUse ( &CBaseMonster::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" );
}
SetState( MONSTERSTATE_IDLE );
ChangeSchedule( GetScheduleOfType( SCHED_IDLE_WALK ) );
}
}
//SetState ( m_IdealMonsterState );
//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 ( &CBaseMonster::CallMonsterThink );
pev->nextthink += RANDOM_FLOAT(0.1, 0.4); // spread think times.
if ( !FStringNull(pev->targetname) )// wait until triggered
{
SetState( MONSTERSTATE_IDLE );
// UNDONE: Some scripted sequence monsters don't have an idle?
SetActivity( ACT_IDLE );
ChangeSchedule( GetScheduleOfType( SCHED_WAIT_TRIGGER ) );
}
}
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. " );
}
CSquadMonster *pSquadMonster = MySquadMonsterPointer();
if ( pSquadMonster )
{
if ( !pSquadMonster->InSquad() )
{
ALERT ( level, "not " );
}
ALERT ( level, "In Squad, " );
if ( !pSquadMonster->IsLeader() )
{
ALERT ( level, "not " );
}
ALERT ( level, "Leader." );
}
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( &CBaseMonster::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;
}
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