d4708
/
source-engine
mirror of https://github.com/nillerusr/source-engine.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
128 Commits
25 Branches
6 Tags
221 MiB
 
 
 
 
 
 
Tree: 5b926feae6
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '5b926feae6'
${ noResults }
source-engine/game/server/hl2/npc_crow.cpp

1599 lines
38 KiB
Raw Blame History

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Crows. Simple ambient birds that fly away when they hear gunfire or
// when anything gets too close to them.
//
// TODO: landing
// TODO: death
//
// $NoKeywords: $
//=============================================================================//
#include "cbase.h"
#include "game.h"
#include "ai_basenpc.h"
#include "ai_schedule.h"
#include "ai_hull.h"
#include "ai_hint.h"
#include "ai_motor.h"
#include "ai_navigator.h"
#include "hl2_shareddefs.h"
#include "ai_route.h"
#include "npcevent.h"
#include "gib.h"
#include "ai_interactions.h"
#include "ndebugoverlay.h"
#include "soundent.h"
#include "vstdlib/random.h"
#include "engine/IEngineSound.h"
#include "movevars_shared.h"
#include "npc_crow.h"
#include "ai_moveprobe.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
//
// Custom activities.
//
static int ACT_CROW_TAKEOFF;
static int ACT_CROW_SOAR;
static int ACT_CROW_LAND;
//
// Animation events.
//
static int AE_CROW_TAKEOFF;
static int AE_CROW_FLY;
static int AE_CROW_HOP;
//
// Skill settings.
//
ConVar sk_crow_health( "sk_crow_health","1");
ConVar sk_crow_melee_dmg( "sk_crow_melee_dmg","0");
LINK_ENTITY_TO_CLASS( npc_crow, CNPC_Crow );
LINK_ENTITY_TO_CLASS( npc_seagull, CNPC_Seagull );
LINK_ENTITY_TO_CLASS( npc_pigeon, CNPC_Pigeon );
BEGIN_DATADESC( CNPC_Crow )
DEFINE_FIELD( m_flGroundIdleMoveTime, FIELD_TIME ),
DEFINE_FIELD( m_bOnJeep, FIELD_BOOLEAN ),
DEFINE_FIELD( m_flEnemyDist, FIELD_FLOAT ),
DEFINE_FIELD( m_nMorale, FIELD_INTEGER ),
DEFINE_FIELD( m_bReachedMoveGoal, FIELD_BOOLEAN ),
DEFINE_FIELD( m_flHopStartZ, FIELD_FLOAT ),
DEFINE_FIELD( m_vDesiredTarget, FIELD_VECTOR ),
DEFINE_FIELD( m_vCurrentTarget, FIELD_VECTOR ),
DEFINE_FIELD( m_flSoarTime, FIELD_TIME ),
DEFINE_FIELD( m_bSoar, FIELD_BOOLEAN ),
DEFINE_FIELD( m_bPlayedLoopingSound, FIELD_BOOLEAN ),
DEFINE_FIELD( m_iBirdType, FIELD_INTEGER ),
DEFINE_FIELD( m_vLastStoredOrigin, FIELD_POSITION_VECTOR ),
DEFINE_FIELD( m_flLastStuckCheck, FIELD_TIME ),
DEFINE_FIELD( m_flDangerSoundTime, FIELD_TIME ),
DEFINE_KEYFIELD( m_bIsDeaf, FIELD_BOOLEAN, "deaf" ),
// Inputs
DEFINE_INPUTFUNC( FIELD_STRING, "FlyAway", InputFlyAway ),
END_DATADESC()
static ConVar birds_debug( "birds_debug", "0" );
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CNPC_Crow::Spawn( void )
{
BaseClass::Spawn();
#ifdef _XBOX
// Always fade the corpse
AddSpawnFlags( SF_NPC_FADE_CORPSE );
#endif // _XBOX
char *szModel = (char *)STRING( GetModelName() );
if (!szModel || !*szModel)
{
szModel = "models/crow.mdl";
SetModelName( AllocPooledString(szModel) );
}
Precache();
SetModel( szModel );
m_iHealth = sk_crow_health.GetFloat();
SetHullType(HULL_TINY);
SetHullSizeNormal();
SetSolid( SOLID_BBOX );
SetMoveType( MOVETYPE_STEP );
m_flFieldOfView = VIEW_FIELD_FULL;
SetViewOffset( Vector(6, 0, 11) ); // Position of the eyes relative to NPC's origin.
m_flGroundIdleMoveTime = gpGlobals->curtime + random->RandomFloat( 0.0f, 5.0f );
SetBloodColor( BLOOD_COLOR_RED );
m_NPCState = NPC_STATE_NONE;
m_nMorale = random->RandomInt( 0, 12 );
SetCollisionGroup( HL2COLLISION_GROUP_CROW );
CapabilitiesClear();
bool bFlying = ( ( m_spawnflags & SF_CROW_FLYING ) != 0 );
SetFlyingState( bFlying ? FlyState_Flying : FlyState_Walking );
// We don't mind zombies so much. They smell good!
AddClassRelationship( CLASS_ZOMBIE, D_NU, 0 );
m_bSoar = false;
m_bOnJeep = false;
m_flSoarTime = gpGlobals->curtime;
NPCInit();
m_iBirdType = BIRDTYPE_CROW;
m_vLastStoredOrigin = vec3_origin;
m_flLastStuckCheck = gpGlobals->curtime;
m_flDangerSoundTime = gpGlobals->curtime;
SetGoalEnt( NULL );
}
//-----------------------------------------------------------------------------
// Purpose: Returns this monster's classification in the relationship table.
//-----------------------------------------------------------------------------
Class_T CNPC_Crow::Classify( void )
{
return( CLASS_EARTH_FAUNA );
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : pEnemy -
//-----------------------------------------------------------------------------
void CNPC_Crow::GatherEnemyConditions( CBaseEntity *pEnemy )
{
m_flEnemyDist = (GetLocalOrigin() - pEnemy->GetLocalOrigin()).Length();
if ( m_flEnemyDist < 512 )
{
SetCondition( COND_CROW_ENEMY_WAY_TOO_CLOSE );
}
if ( m_flEnemyDist < 1024 )
{
SetCondition( COND_CROW_ENEMY_TOO_CLOSE );
}
BaseClass::GatherEnemyConditions(pEnemy);
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : posSrc -
// Output : Vector
//-----------------------------------------------------------------------------
Vector CNPC_Crow::BodyTarget( const Vector &posSrc, bool bNoisy )
{
Vector vecResult;
vecResult = GetAbsOrigin();
vecResult.z += 6;
return vecResult;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CNPC_Crow::StopLoopingSounds( void )
{
//
// Stop whatever flap sound might be playing.
//
if ( m_bPlayedLoopingSound )
{
StopSound( "NPC_Crow.Flap" );
}
BaseClass::StopLoopingSounds();
}
//-----------------------------------------------------------------------------
// Purpose: Catches the monster-specific messages that occur when tagged
// animation frames are played.
// Input : pEvent -
//-----------------------------------------------------------------------------
void CNPC_Crow::HandleAnimEvent( animevent_t *pEvent )
{
if ( pEvent->event == AE_CROW_TAKEOFF )
{
if ( GetNavigator()->GetPath()->GetCurWaypoint() )
{
Takeoff( GetNavigator()->GetCurWaypointPos() );
}
return;
}
if( pEvent->event == AE_CROW_HOP )
{
SetGroundEntity( NULL );
//
// Take him off ground so engine doesn't instantly reset FL_ONGROUND.
//
UTIL_SetOrigin( this, GetLocalOrigin() + Vector( 0 , 0 , 1 ));
//
// How fast does the crow need to travel to reach the hop goal given gravity?
//
float flHopDistance = ( m_vSavePosition - GetLocalOrigin() ).Length();
float gravity = GetCurrentGravity();
if ( gravity <= 1 )
{
gravity = 1;
}
float height = 0.25 * flHopDistance;
float speed = sqrt( 2 * gravity * height );
float time = speed / gravity;
//
// Scale the sideways velocity to get there at the right time
//
Vector vecJumpDir = m_vSavePosition - GetLocalOrigin();
vecJumpDir = vecJumpDir / time;
//
// Speed to offset gravity at the desired height.
//
vecJumpDir.z = speed;
//
// Don't jump too far/fast.
//
float distance = vecJumpDir.Length();
if ( distance > 650 )
{
vecJumpDir = vecJumpDir * ( 650.0 / distance );
}
m_nMorale -= random->RandomInt( 1, 6 );
if ( m_nMorale <= 0 )
{
m_nMorale = 0;
}
// Play a hop flap sound.
EmitSound( "NPC_Crow.Hop" );
SetAbsVelocity( vecJumpDir );
return;
}
if( pEvent->event == AE_CROW_FLY )
{
//
// Start flying.
//
SetActivity( ACT_FLY );
m_bSoar = false;
m_flSoarTime = gpGlobals->curtime + random->RandomFloat( 3, 5 );
return;
}
CAI_BaseNPC::HandleAnimEvent( pEvent );
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : eNewActivity -
//-----------------------------------------------------------------------------
void CNPC_Crow::OnChangeActivity( Activity eNewActivity )
{
// if ( eNewActivity == ACT_FLY )
// {
// m_flGroundSpeed = CROW_AIRSPEED;
// }
//
bool fRandomize = false;
if ( eNewActivity == ACT_FLY )
{
fRandomize = true;
}
BaseClass::OnChangeActivity( eNewActivity );
if ( fRandomize )
{
SetCycle( random->RandomFloat( 0.0, 0.75 ) );
}
}
//-----------------------------------------------------------------------------
// Purpose: Input handler that makes the crow fly away.
//-----------------------------------------------------------------------------
void CNPC_Crow::InputFlyAway( inputdata_t &inputdata )
{
string_t sTarget = MAKE_STRING( inputdata.value.String() );
if ( sTarget != NULL_STRING )// this npc has a target
{
CBaseEntity *pEnt = gEntList.FindEntityByName( NULL, sTarget );
if ( pEnt )
{
trace_t tr;
AI_TraceLine ( EyePosition(), pEnt->GetAbsOrigin(), MASK_NPCSOLID, this, COLLISION_GROUP_NONE, &tr );
if ( tr.fraction != 1.0f )
return;
// Find the npc's initial target entity, stash it
SetGoalEnt( pEnt );
}
}
else
SetGoalEnt( NULL );
SetCondition( COND_CROW_FORCED_FLY );
SetCondition( COND_PROVOKED );
}
void CNPC_Crow::UpdateEfficiency( bool bInPVS )
{
if ( IsFlying() )
{
SetEfficiency( ( GetSleepState() != AISS_AWAKE ) ? AIE_DORMANT : AIE_NORMAL );
SetMoveEfficiency( AIME_NORMAL );
return;
}
BaseClass::UpdateEfficiency( bInPVS );
}
//-----------------------------------------------------------------------------
// Purpose: Implements "deafness"
//-----------------------------------------------------------------------------
bool CNPC_Crow::QueryHearSound( CSound *pSound )
{
if( IsDeaf() )
return false;
return BaseClass::QueryHearSound( pSound );
}
//-----------------------------------------------------------------------------
// Purpose: Handles all flight movement because we don't ever build paths when
// when we are flying.
// Input : flInterval - Seconds to simulate.
//-----------------------------------------------------------------------------
bool CNPC_Crow::OverrideMove( float flInterval )
{
if ( GetNavigator()->GetPath()->CurWaypointNavType() == NAV_FLY && GetNavigator()->GetNavType() != NAV_FLY )
{
SetNavType( NAV_FLY );
}
if ( IsFlying() )
{
if ( GetNavigator()->GetPath()->GetCurWaypoint() )
{
if ( m_flLastStuckCheck <= gpGlobals->curtime )
{
if ( m_vLastStoredOrigin == GetAbsOrigin() )
{
if ( GetAbsVelocity() == vec3_origin )
{
float flDamage = m_iHealth;
CTakeDamageInfo dmgInfo( this, this, flDamage, DMG_GENERIC );
GuessDamageForce( &dmgInfo, vec3_origin - Vector( 0, 0, 0.1 ), GetAbsOrigin() );
TakeDamage( dmgInfo );
return false;
}
else
{
m_vLastStoredOrigin = GetAbsOrigin();
}
}
else
{
m_vLastStoredOrigin = GetAbsOrigin();
}
m_flLastStuckCheck = gpGlobals->curtime + 1.0f;
}
if (m_bReachedMoveGoal )
{
SetIdealActivity( (Activity)ACT_CROW_LAND );
SetFlyingState( FlyState_Landing );
TaskMovementComplete();
}
else
{
SetIdealActivity ( ACT_FLY );
MoveCrowFly( flInterval );
}
}
else if ( !GetTask() || GetTask()->iTask == TASK_WAIT_FOR_MOVEMENT )
{
SetSchedule( SCHED_CROW_IDLE_FLY );
SetFlyingState( FlyState_Flying );
SetIdealActivity ( ACT_FLY );
}
return true;
}
return false;
}
Activity CNPC_Crow::NPC_TranslateActivity( Activity eNewActivity )
{
if ( IsFlying() && eNewActivity == ACT_IDLE )
{
return ACT_FLY;
}
if ( eNewActivity == ACT_FLY )
{
if ( m_flSoarTime < gpGlobals->curtime )
{
//Adrian: This should be revisited.
if ( random->RandomInt( 0, 100 ) <= 50 && m_bSoar == false && GetAbsVelocity().z < 0 )
{
m_bSoar = true;
m_flSoarTime = gpGlobals->curtime + random->RandomFloat( 1, 4 );
}
else
{
m_bSoar = false;
m_flSoarTime = gpGlobals->curtime + random->RandomFloat( 3, 5 );
}
}
if ( m_bSoar == true )
{
return (Activity)ACT_CROW_SOAR;
}
else
return ACT_FLY;
}
return BaseClass::NPC_TranslateActivity( eNewActivity );
}
//-----------------------------------------------------------------------------
// Purpose: Handles all flight movement.
// Input : flInterval - Seconds to simulate.
//-----------------------------------------------------------------------------
void CNPC_Crow::MoveCrowFly( float flInterval )
{
//
// Bound interval so we don't get ludicrous motion when debugging
// or when framerate drops catastrophically.
//
if (flInterval > 1.0)
{
flInterval = 1.0;
}
m_flDangerSoundTime = gpGlobals->curtime + 5.0f;
//
// Determine the goal of our movement.
//
Vector vecMoveGoal = GetAbsOrigin();
if ( GetNavigator()->IsGoalActive() )
{
vecMoveGoal = GetNavigator()->GetCurWaypointPos();
if ( GetNavigator()->CurWaypointIsGoal() == false )
{
AI_ProgressFlyPathParams_t params( MASK_NPCSOLID );
params.bTrySimplify = false;
GetNavigator()->ProgressFlyPath( params ); // ignore result, crow handles completion directly
// Fly towards the hint.
if ( GetNavigator()->GetPath()->GetCurWaypoint() )
{
vecMoveGoal = GetNavigator()->GetCurWaypointPos();
}
}
}
else
{
// No movement goal.
vecMoveGoal = GetAbsOrigin();
SetAbsVelocity( vec3_origin );
return;
}
Vector vecMoveDir = ( vecMoveGoal - GetAbsOrigin() );
Vector vForward;
AngleVectors( GetAbsAngles(), &vForward );
//
// Fly towards the movement goal.
//
float flDistance = ( vecMoveGoal - GetAbsOrigin() ).Length();
if ( vecMoveGoal != m_vDesiredTarget )
{
m_vDesiredTarget = vecMoveGoal;
}
else
{
m_vCurrentTarget = ( m_vDesiredTarget - GetAbsOrigin() );
VectorNormalize( m_vCurrentTarget );
}
float flLerpMod = 0.25f;
if ( flDistance <= 256.0f )
{
flLerpMod = 1.0f - ( flDistance / 256.0f );
}
VectorLerp( vForward, m_vCurrentTarget, flLerpMod, vForward );
if ( flDistance < CROW_AIRSPEED * flInterval )
{
if ( GetNavigator()->IsGoalActive() )
{
if ( GetNavigator()->CurWaypointIsGoal() )
{
m_bReachedMoveGoal = true;
}
else
{
GetNavigator()->AdvancePath();
}
}
else
m_bReachedMoveGoal = true;
}
if ( GetHintNode() )
{
AIMoveTrace_t moveTrace;
GetMoveProbe()->MoveLimit( NAV_FLY, GetAbsOrigin(), GetNavigator()->GetCurWaypointPos(), MASK_NPCSOLID, GetNavTargetEntity(), &moveTrace );
//See if it succeeded
if ( IsMoveBlocked( moveTrace.fStatus ) )
{
Vector vNodePos = vecMoveGoal;
GetHintNode()->GetPosition(this, &vNodePos);
GetNavigator()->SetGoal( vNodePos );
}
}
//
// Look to see if we are going to hit anything.
//
VectorNormalize( vForward );
Vector vecDeflect;
if ( Probe( vForward, CROW_AIRSPEED * flInterval, vecDeflect ) )
{
vForward = vecDeflect;
VectorNormalize( vForward );
}
SetAbsVelocity( vForward * CROW_AIRSPEED );
if ( GetAbsVelocity().Length() > 0 && GetNavigator()->CurWaypointIsGoal() && flDistance < CROW_AIRSPEED )
{
SetIdealActivity( (Activity)ACT_CROW_LAND );
}
//Bank and set angles.
Vector vRight;
QAngle vRollAngle;
VectorAngles( vForward, vRollAngle );
vRollAngle.z = 0;
AngleVectors( vRollAngle, NULL, &vRight, NULL );
float flRoll = DotProduct( vRight, vecMoveDir ) * 45;
flRoll = clamp( flRoll, -45, 45 );
vRollAngle[ROLL] = flRoll;
SetAbsAngles( vRollAngle );
}
//-----------------------------------------------------------------------------
// Purpose: Looks ahead to see if we are going to hit something. If we are, a
// recommended avoidance path is returned.
// Input : vecMoveDir -
// flSpeed -
// vecDeflect -
// Output : Returns true if we hit something and need to deflect our course,
// false if all is well.
//-----------------------------------------------------------------------------
bool CNPC_Crow::Probe( const Vector &vecMoveDir, float flSpeed, Vector &vecDeflect )
{
//
// Look 1/2 second ahead.
//
trace_t tr;
AI_TraceHull( GetAbsOrigin(), GetAbsOrigin() + vecMoveDir * flSpeed, GetHullMins(), GetHullMaxs(), MASK_NPCSOLID, this, HL2COLLISION_GROUP_CROW, &tr );
if ( tr.fraction < 1.0f )
{
//
// If we hit something, deflect flight path parallel to surface hit.
//
Vector vecUp;
CrossProduct( vecMoveDir, tr.plane.normal, vecUp );
CrossProduct( tr.plane.normal, vecUp, vecDeflect );
VectorNormalize( vecDeflect );
return true;
}
vecDeflect = vec3_origin;
return false;
}
//-----------------------------------------------------------------------------
// Purpose: Switches between flying mode and ground mode.
//-----------------------------------------------------------------------------
void CNPC_Crow::SetFlyingState( FlyState_t eState )
{
if ( eState == FlyState_Flying )
{
// Flying
SetGroundEntity( NULL );
AddFlag( FL_FLY );
SetNavType( NAV_FLY );
CapabilitiesRemove( bits_CAP_MOVE_GROUND );
CapabilitiesAdd( bits_CAP_MOVE_FLY );
SetMoveType( MOVETYPE_STEP );
m_vLastStoredOrigin = GetAbsOrigin();
m_flLastStuckCheck = gpGlobals->curtime + 3.0f;
m_flGroundIdleMoveTime = gpGlobals->curtime + random->RandomFloat( 5.0f, 10.0f );
}
else if ( eState == FlyState_Walking )
{
// Walking
QAngle angles = GetAbsAngles();
angles[PITCH] = 0.0f;
angles[ROLL] = 0.0f;
SetAbsAngles( angles );
RemoveFlag( FL_FLY );
SetNavType( NAV_GROUND );
CapabilitiesRemove( bits_CAP_MOVE_FLY );
CapabilitiesAdd( bits_CAP_MOVE_GROUND );
SetMoveType( MOVETYPE_STEP );
m_vLastStoredOrigin = vec3_origin;
m_flGroundIdleMoveTime = gpGlobals->curtime + random->RandomFloat( 5.0f, 10.0f );
}
else
{
// Falling
RemoveFlag( FL_FLY );
SetNavType( NAV_GROUND );
CapabilitiesRemove( bits_CAP_MOVE_FLY );
CapabilitiesAdd( bits_CAP_MOVE_GROUND );
SetMoveType( MOVETYPE_STEP );
m_flGroundIdleMoveTime = gpGlobals->curtime + random->RandomFloat( 5.0f, 10.0f );
}
}
//-----------------------------------------------------------------------------
// Purpose: Performs a takeoff. Called via an animation event at the moment
// our feet leave the ground.
// Input : pGoalEnt - The entity that we are going to fly toward.
//-----------------------------------------------------------------------------
void CNPC_Crow::Takeoff( const Vector &vGoal )
{
if ( vGoal != vec3_origin )
{
//
// Lift us off ground so engine doesn't instantly reset FL_ONGROUND.
//
UTIL_SetOrigin( this, GetAbsOrigin() + Vector( 0 , 0 , 1 ));
//
// Fly straight at the goal entity at our maximum airspeed.
//
Vector vecMoveDir = vGoal - GetAbsOrigin();
VectorNormalize( vecMoveDir );
// FIXME: pitch over time
SetFlyingState( FlyState_Flying );
QAngle angles;
VectorAngles( vecMoveDir, angles );
SetAbsAngles( angles );
SetAbsVelocity( vecMoveDir * CROW_TAKEOFF_SPEED );
}
}
void CNPC_Crow::TraceAttack( const CTakeDamageInfo &info, const Vector &vecDir, trace_t *ptr, CDmgAccumulator *pAccumulator )
{
CTakeDamageInfo newInfo = info;
if ( info.GetDamageType() & DMG_PHYSGUN )
{
Vector puntDir = ( info.GetDamageForce() * 5000.0f );
newInfo.SetDamage( m_iMaxHealth );
PainSound( newInfo );
newInfo.SetDamageForce( puntDir );
}
BaseClass::TraceAttack( newInfo, vecDir, ptr, pAccumulator );
}
void CNPC_Crow::StartTargetHandling( CBaseEntity *pTargetEnt )
{
AI_NavGoal_t goal( GOALTYPE_PATHCORNER, pTargetEnt->GetAbsOrigin(),
ACT_FLY,
AIN_DEF_TOLERANCE, AIN_YAW_TO_DEST);
if ( !GetNavigator()->SetGoal( goal ) )
{
DevWarning( 2, "Can't Create Route!\n" );
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : pTask -
//-----------------------------------------------------------------------------
void CNPC_Crow::StartTask( const Task_t *pTask )
{
switch ( pTask->iTask )
{
//
// This task enables us to build a path that requires flight.
//
// case TASK_CROW_PREPARE_TO_FLY:
// {
// SetFlyingState( FlyState_Flying );
// TaskComplete();
// break;
// }
case TASK_CROW_TAKEOFF:
{
if ( random->RandomInt( 1, 4 ) == 1 )
{
AlertSound();
}
FlapSound();
SetIdealActivity( ( Activity )ACT_CROW_TAKEOFF );
break;
}
case TASK_CROW_PICK_EVADE_GOAL:
{
if ( GetEnemy() != NULL )
{
//
// Get our enemy's position in x/y.
//
Vector vecEnemyOrigin = GetEnemy()->GetAbsOrigin();
vecEnemyOrigin.z = GetAbsOrigin().z;
//
// Pick a hop goal a random distance along a vector away from our enemy.
//
m_vSavePosition = GetAbsOrigin() - vecEnemyOrigin;
VectorNormalize( m_vSavePosition );
m_vSavePosition = GetAbsOrigin() + m_vSavePosition * ( 32 + random->RandomInt( 0, 32 ) );
GetMotor()->SetIdealYawToTarget( m_vSavePosition );
TaskComplete();
}
else
{
TaskFail( "No enemy" );
}
break;
}
case TASK_CROW_FALL_TO_GROUND:
{
SetFlyingState( FlyState_Falling );
break;
}
case TASK_FIND_HINTNODE:
{
if ( GetGoalEnt() )
{
TaskComplete();
return;
}
// Overloaded because we search over a greater distance.
if ( !GetHintNode() )
{
SetHintNode(CAI_HintManager::FindHint( this, HINT_CROW_FLYTO_POINT, bits_HINT_NODE_NEAREST | bits_HINT_NODE_USE_GROUP, 10000 ));
}
if ( GetHintNode() )
{
TaskComplete();
}
else
{
TaskFail( FAIL_NO_HINT_NODE );
}
break;
}
case TASK_GET_PATH_TO_HINTNODE:
{
//How did this happen?!
if ( GetGoalEnt() == this )
{
SetGoalEnt( NULL );
}
if ( GetGoalEnt() )
{
SetFlyingState( FlyState_Flying );
StartTargetHandling( GetGoalEnt() );
m_bReachedMoveGoal = false;
TaskComplete();
SetHintNode( NULL );
return;
}
if ( GetHintNode() )
{
Vector vHintPos;
GetHintNode()->GetPosition(this, &vHintPos);
SetNavType( NAV_FLY );
CapabilitiesAdd( bits_CAP_MOVE_FLY );
// @HACKHACK: Force allow triangulation. Too many HL2 maps were relying on this feature WRT fly nodes (toml 8/1/2007)
NPC_STATE state = GetState();
m_NPCState = NPC_STATE_SCRIPT;
bool bFoundPath = GetNavigator()->SetGoal( vHintPos );
m_NPCState = state;
if ( !bFoundPath )
{
GetHintNode()->DisableForSeconds( .3 );
SetHintNode(NULL);
}
CapabilitiesRemove( bits_CAP_MOVE_FLY );
}
if ( GetHintNode() )
{
m_bReachedMoveGoal = false;
TaskComplete();
}
else
{
TaskFail( FAIL_NO_ROUTE );
}
break;
}
//
// We have failed to fly normally. Pick a random "up" direction and fly that way.
//
case TASK_CROW_FLY:
{
float flYaw = UTIL_AngleMod( random->RandomInt( -180, 180 ) );
Vector vecNewVelocity( cos( DEG2RAD( flYaw ) ), sin( DEG2RAD( flYaw ) ), random->RandomFloat( 0.1f, 0.5f ) );
vecNewVelocity *= CROW_AIRSPEED;
SetAbsVelocity( vecNewVelocity );
SetIdealActivity( ACT_FLY );
m_bSoar = false;
m_flSoarTime = gpGlobals->curtime + random->RandomFloat( 2, 5 );
break;
}
case TASK_CROW_PICK_RANDOM_GOAL:
{
m_vSavePosition = GetLocalOrigin() + Vector( random->RandomFloat( -48.0f, 48.0f ), random->RandomFloat( -48.0f, 48.0f ), 0 );
TaskComplete();
break;
}
case TASK_CROW_HOP:
{
SetIdealActivity( ACT_HOP );
m_flHopStartZ = GetLocalOrigin().z;
break;
}
case TASK_CROW_WAIT_FOR_BARNACLE_KILL:
{
break;
}
default:
{
BaseClass::StartTask( pTask );
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : pTask -
//-----------------------------------------------------------------------------
void CNPC_Crow::RunTask( const Task_t *pTask )
{
switch ( pTask->iTask )
{
case TASK_CROW_TAKEOFF:
{
if ( GetNavigator()->IsGoalActive() )
{
GetMotor()->SetIdealYawToTargetAndUpdate( GetAbsOrigin() + GetNavigator()->GetCurWaypointPos(), AI_KEEP_YAW_SPEED );
}
else
TaskFail( FAIL_NO_ROUTE );
if ( IsActivityFinished() )
{
TaskComplete();
SetIdealActivity( ACT_FLY );
m_bSoar = false;
m_flSoarTime = gpGlobals->curtime + random->RandomFloat( 2, 5 );
}
break;
}
case TASK_CROW_HOP:
{
if ( IsActivityFinished() )
{
TaskComplete();
SetIdealActivity( ACT_IDLE );
}
if ( ( GetAbsOrigin().z < m_flHopStartZ ) && ( !( GetFlags() & FL_ONGROUND ) ) )
{
//
// We've hopped off of something! See if we're going to fall very far.
//
trace_t tr;
AI_TraceLine( GetAbsOrigin(), GetAbsOrigin() + Vector( 0, 0, -32 ), MASK_SOLID, this, HL2COLLISION_GROUP_CROW, &tr );
if ( tr.fraction == 1.0f )
{
//
// We're falling! Better fly away. SelectSchedule will check ONGROUND and do the right thing.
//
TaskComplete();
}
else
{
//
// We'll be okay. Don't check again unless what we're hopping onto moves
// out from under us.
//
m_flHopStartZ = GetAbsOrigin().z - ( 32 * tr.fraction );
}
}
break;
}
//
// Face the direction we are flying.
//
case TASK_CROW_FLY:
{
GetMotor()->SetIdealYawToTargetAndUpdate( GetAbsOrigin() + GetAbsVelocity(), AI_KEEP_YAW_SPEED );
break;
}
case TASK_CROW_FALL_TO_GROUND:
{
if ( GetFlags() & FL_ONGROUND )
{
SetFlyingState( FlyState_Walking );
TaskComplete();
}
break;
}
case TASK_CROW_WAIT_FOR_BARNACLE_KILL:
{
if ( m_flNextFlinchTime < gpGlobals->curtime )
{
m_flNextFlinchTime = gpGlobals->curtime + random->RandomFloat( 0.5f, 2.0f );
// dvs: TODO: squirm
// dvs: TODO: spawn feathers
EmitSound( "NPC_Crow.Squawk" );
}
break;
}
default:
{
CAI_BaseNPC::RunTask( pTask );
}
}
}
//------------------------------------------------------------------------------
// Purpose: Override to do crow specific gibs.
// Output : Returns true to gib, false to not gib.
//-----------------------------------------------------------------------------
bool CNPC_Crow::CorpseGib( const CTakeDamageInfo &info )
{
EmitSound( "NPC_Crow.Gib" );
// TODO: crow gibs?
//CGib::SpawnSpecificGibs( this, CROW_GIB_COUNT, 300, 400, "models/gibs/crow_gibs.mdl");
return true;
}
//-----------------------------------------------------------------------------
// Don't allow ridiculous forces to be applied to the crow. It only weighs
// 1.5kg, so extreme forces will give it ridiculous velocity.
//-----------------------------------------------------------------------------
#define CROW_RAGDOLL_SPEED_LIMIT 1000.0f // Crow ragdoll speed limit in inches per second.
bool CNPC_Crow::BecomeRagdollOnClient( const Vector &force )
{
Vector newForce = force;
if( VPhysicsGetObject() )
{
float flMass = VPhysicsGetObject()->GetMass();
float speed = VectorNormalize( newForce );
speed = MIN( speed, (CROW_RAGDOLL_SPEED_LIMIT * flMass) );
newForce *= speed;
}
return BaseClass::BecomeRagdollOnClient( newForce );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
bool CNPC_Crow::FValidateHintType( CAI_Hint *pHint )
{
return( pHint->HintType() == HINT_CROW_FLYTO_POINT );
}
//-----------------------------------------------------------------------------
// Purpose: Returns the activity for the given hint type.
// Input : sHintType -
//-----------------------------------------------------------------------------
Activity CNPC_Crow::GetHintActivity( short sHintType, Activity HintsActivity )
{
if ( sHintType == HINT_CROW_FLYTO_POINT )
{
return ACT_FLY;
}
return BaseClass::GetHintActivity( sHintType, HintsActivity );
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : pevInflictor -
// pevAttacker -
// flDamage -
// bitsDamageType -
//-----------------------------------------------------------------------------
int CNPC_Crow::OnTakeDamage_Alive( const CTakeDamageInfo &info )
{
// TODO: spew a feather or two
return BaseClass::OnTakeDamage_Alive( info );
}
//-----------------------------------------------------------------------------
// Purpose: Returns the best new schedule for this NPC based on current conditions.
//-----------------------------------------------------------------------------
int CNPC_Crow::SelectSchedule( void )
{
if ( HasCondition( COND_CROW_BARNACLED ) )
{
// Caught by a barnacle!
return SCHED_CROW_BARNACLED;
}
//
// If we're flying, just find somewhere to fly to.
//
if ( IsFlying() )
{
return SCHED_CROW_IDLE_FLY;
}
//
// If we were told to fly away via our FlyAway input, do so ASAP.
//
if ( HasCondition( COND_CROW_FORCED_FLY ) )
{
ClearCondition( COND_CROW_FORCED_FLY );
return SCHED_CROW_FLY_AWAY;
}
//
// If we're not flying but we're not on the ground, start flying.
// Maybe we hopped off of something? Don't do this immediately upon
// because we may be falling to the ground on spawn.
//
if ( !( GetFlags() & FL_ONGROUND ) && ( gpGlobals->curtime > 2.0 ) && m_bOnJeep == false )
{
return SCHED_CROW_FLY_AWAY;
}
//
// If we heard a gunshot or have taken damage, fly away.
//
if ( HasCondition( COND_LIGHT_DAMAGE ) || HasCondition( COND_HEAVY_DAMAGE ) )
{
return SCHED_CROW_FLY_AWAY;
}
if ( m_flDangerSoundTime <= gpGlobals->curtime )
{
if ( HasCondition( COND_HEAR_DANGER ) || HasCondition( COND_HEAR_COMBAT ) )
{
m_flDangerSoundTime = gpGlobals->curtime + 10.0f;
return SCHED_CROW_FLY_AWAY;
}
}
//
// If someone we hate is getting WAY too close for comfort, fly away.
//
if ( HasCondition( COND_CROW_ENEMY_WAY_TOO_CLOSE ) )
{
ClearCondition( COND_CROW_ENEMY_WAY_TOO_CLOSE );
m_nMorale = 0;
return SCHED_CROW_FLY_AWAY;
}
//
// If someone we hate is getting a little too close for comfort, avoid them.
//
if ( HasCondition( COND_CROW_ENEMY_TOO_CLOSE ) && m_flDangerSoundTime <= gpGlobals->curtime )
{
ClearCondition( COND_CROW_ENEMY_TOO_CLOSE );
if ( m_bOnJeep == true )
{
m_nMorale = 0;
return SCHED_CROW_FLY_AWAY;
}
if ( m_flEnemyDist > 400 )
{
return SCHED_CROW_WALK_AWAY;
}
else if ( m_flEnemyDist > 300 )
{
m_nMorale -= 1;
return SCHED_CROW_RUN_AWAY;
}
}
switch ( m_NPCState )
{
case NPC_STATE_IDLE:
case NPC_STATE_ALERT:
case NPC_STATE_COMBAT:
{
if ( !IsFlying() )
{
if ( m_bOnJeep == true )
return SCHED_IDLE_STAND;
//
// If we are hanging out on the ground, see if it is time to pick a new place to walk to.
//
if ( gpGlobals->curtime > m_flGroundIdleMoveTime )
{
m_flGroundIdleMoveTime = gpGlobals->curtime + random->RandomFloat( 10.0f, 20.0f );
return SCHED_CROW_IDLE_WALK;
}
return SCHED_IDLE_STAND;
}
// TODO: need idle flying behaviors!
}
}
return BaseClass::SelectSchedule();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CNPC_Crow::Precache( void )
{
BaseClass::Precache();
PrecacheModel( "models/crow.mdl" );
PrecacheModel( "models/pigeon.mdl" );
PrecacheModel( "models/seagull.mdl" );
//Crow
PrecacheScriptSound( "NPC_Crow.Hop" );
PrecacheScriptSound( "NPC_Crow.Squawk" );
PrecacheScriptSound( "NPC_Crow.Gib" );
PrecacheScriptSound( "NPC_Crow.Idle" );
PrecacheScriptSound( "NPC_Crow.Alert" );
PrecacheScriptSound( "NPC_Crow.Die" );
PrecacheScriptSound( "NPC_Crow.Pain" );
PrecacheScriptSound( "NPC_Crow.Flap" );
//Seagull
PrecacheScriptSound( "NPC_Seagull.Pain" );
PrecacheScriptSound( "NPC_Seagull.Idle" );
//Pigeon
PrecacheScriptSound( "NPC_Pigeon.Idle");
}
//-----------------------------------------------------------------------------
// Purpose: Sounds.
//-----------------------------------------------------------------------------
void CNPC_Crow::IdleSound( void )
{
if ( m_iBirdType != BIRDTYPE_CROW )
return;
EmitSound( "NPC_Crow.Idle" );
}
void CNPC_Crow::AlertSound( void )
{
if ( m_iBirdType != BIRDTYPE_CROW )
return;
EmitSound( "NPC_Crow.Alert" );
}
void CNPC_Crow::PainSound( const CTakeDamageInfo &info )
{
if ( m_iBirdType != BIRDTYPE_CROW )
return;
EmitSound( "NPC_Crow.Pain" );
}
void CNPC_Crow::DeathSound( const CTakeDamageInfo &info )
{
if ( m_iBirdType != BIRDTYPE_CROW )
return;
EmitSound( "NPC_Crow.Die" );
}
void CNPC_Crow::FlapSound( void )
{
EmitSound( "NPC_Crow.Flap" );
m_bPlayedLoopingSound = true;
}
//-----------------------------------------------------------------------------
// Purpose: This is a generic function (to be implemented by sub-classes) to
// handle specific interactions between different types of characters
// (For example the barnacle grabbing an NPC)
// Input : Constant for the type of interaction
// Output : true - if sub-class has a response for the interaction
// false - if sub-class has no response
//-----------------------------------------------------------------------------
bool CNPC_Crow::HandleInteraction( int interactionType, void *data, CBaseCombatCharacter *sourceEnt )
{
if ( interactionType == g_interactionBarnacleVictimDangle )
{
// Die instantly
return false;
}
else if ( interactionType == g_interactionBarnacleVictimGrab )
{
if ( GetFlags() & FL_ONGROUND )
{
SetGroundEntity( NULL );
}
// return ideal grab position
if (data)
{
// FIXME: need a good way to ensure this contract
*((Vector *)data) = GetAbsOrigin() + Vector( 0, 0, 5 );
}
StopLoopingSounds();
SetThink( NULL );
return true;
}
return BaseClass::HandleInteraction( interactionType, data, sourceEnt );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
int CNPC_Crow::DrawDebugTextOverlays( void )
{
int nOffset = BaseClass::DrawDebugTextOverlays();
if (m_debugOverlays & OVERLAY_TEXT_BIT)
{
char tempstr[512];
Q_snprintf( tempstr, sizeof( tempstr ), "morale: %d", m_nMorale );
EntityText( nOffset, tempstr, 0 );
nOffset++;
if ( GetEnemy() != NULL )
{
Q_snprintf( tempstr, sizeof( tempstr ), "enemy (dist): %s (%g)", GetEnemy()->GetClassname(), ( double )m_flEnemyDist );
EntityText( nOffset, tempstr, 0 );
nOffset++;
}
}
return nOffset;
}
//-----------------------------------------------------------------------------
// Purpose: Determines which sounds the crow cares about.
//-----------------------------------------------------------------------------
int CNPC_Crow::GetSoundInterests( void )
{
return SOUND_WORLD | SOUND_COMBAT | SOUND_PLAYER | SOUND_DANGER;
}
//-----------------------------------------------------------------------------
//
// Schedules
//
//-----------------------------------------------------------------------------
AI_BEGIN_CUSTOM_NPC( npc_crow, CNPC_Crow )
DECLARE_TASK( TASK_CROW_FIND_FLYTO_NODE )
//DECLARE_TASK( TASK_CROW_PREPARE_TO_FLY )
DECLARE_TASK( TASK_CROW_TAKEOFF )
DECLARE_TASK( TASK_CROW_FLY )
DECLARE_TASK( TASK_CROW_PICK_RANDOM_GOAL )
DECLARE_TASK( TASK_CROW_HOP )
DECLARE_TASK( TASK_CROW_PICK_EVADE_GOAL )
DECLARE_TASK( TASK_CROW_WAIT_FOR_BARNACLE_KILL )
// experiment
DECLARE_TASK( TASK_CROW_FALL_TO_GROUND )
DECLARE_TASK( TASK_CROW_PREPARE_TO_FLY_RANDOM )
DECLARE_ACTIVITY( ACT_CROW_TAKEOFF )
DECLARE_ACTIVITY( ACT_CROW_SOAR )
DECLARE_ACTIVITY( ACT_CROW_LAND )
DECLARE_ANIMEVENT( AE_CROW_HOP )
DECLARE_ANIMEVENT( AE_CROW_FLY )
DECLARE_ANIMEVENT( AE_CROW_TAKEOFF )
DECLARE_CONDITION( COND_CROW_ENEMY_TOO_CLOSE )
DECLARE_CONDITION( COND_CROW_ENEMY_WAY_TOO_CLOSE )
DECLARE_CONDITION( COND_CROW_FORCED_FLY )
DECLARE_CONDITION( COND_CROW_BARNACLED )
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_IDLE_WALK,
" Tasks"
" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_IDLE_STAND"
" TASK_CROW_PICK_RANDOM_GOAL 0"
" TASK_GET_PATH_TO_SAVEPOSITION 0"
" TASK_WALK_PATH 0"
" TASK_WAIT_FOR_MOVEMENT 0"
" TASK_WAIT_PVS 0"
" "
" Interrupts"
" COND_CROW_FORCED_FLY"
" COND_PROVOKED"
" COND_CROW_ENEMY_TOO_CLOSE"
" COND_NEW_ENEMY"
" COND_HEAVY_DAMAGE"
" COND_LIGHT_DAMAGE"
" COND_HEAVY_DAMAGE"
" COND_HEAR_DANGER"
" COND_HEAR_COMBAT"
)
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_WALK_AWAY,
" Tasks"
" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_CROW_FLY_AWAY"
" TASK_CROW_PICK_EVADE_GOAL 0"
" TASK_GET_PATH_TO_SAVEPOSITION 0"
" TASK_WALK_PATH 0"
" TASK_WAIT_FOR_MOVEMENT 0"
" "
" Interrupts"
" COND_CROW_FORCED_FLY"
" COND_CROW_ENEMY_WAY_TOO_CLOSE"
" COND_NEW_ENEMY"
" COND_HEAVY_DAMAGE"
" COND_LIGHT_DAMAGE"
" COND_HEAVY_DAMAGE"
" COND_HEAR_DANGER"
" COND_HEAR_COMBAT"
)
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_RUN_AWAY,
" Tasks"
" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_CROW_FLY_AWAY"
" TASK_CROW_PICK_EVADE_GOAL 0"
" TASK_GET_PATH_TO_SAVEPOSITION 0"
" TASK_RUN_PATH 0"
" TASK_WAIT_FOR_MOVEMENT 0"
" "
" Interrupts"
" COND_CROW_FORCED_FLY"
" COND_CROW_ENEMY_WAY_TOO_CLOSE"
" COND_NEW_ENEMY"
" COND_HEAVY_DAMAGE"
" COND_LIGHT_DAMAGE"
" COND_HEAVY_DAMAGE"
" COND_HEAR_DANGER"
" COND_HEAR_COMBAT"
)
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_HOP_AWAY,
" Tasks"
" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_CROW_FLY_AWAY"
" TASK_STOP_MOVING 0"
" TASK_CROW_PICK_EVADE_GOAL 0"
" TASK_FACE_IDEAL 0"
" TASK_CROW_HOP 0"
" "
" Interrupts"
" COND_CROW_FORCED_FLY"
" COND_HEAVY_DAMAGE"
" COND_LIGHT_DAMAGE"
" COND_HEAVY_DAMAGE"
" COND_HEAR_DANGER"
" COND_HEAR_COMBAT"
)
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_IDLE_FLY,
" Tasks"
" TASK_FIND_HINTNODE 0"
" TASK_GET_PATH_TO_HINTNODE 0"
" TASK_WAIT_FOR_MOVEMENT 0"
" "
" Interrupts"
)
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_FLY_AWAY,
" Tasks"
" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_CROW_FLY_FAIL"
" TASK_STOP_MOVING 0"
" TASK_FIND_HINTNODE 0"
" TASK_GET_PATH_TO_HINTNODE 0"
" TASK_CROW_TAKEOFF 0"
" TASK_WAIT_FOR_MOVEMENT 0"
" "
" Interrupts"
)
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_FLY,
" Tasks"
" TASK_SET_FAIL_SCHEDULE SCHEDULE:SCHED_CROW_FLY_FAIL"
" TASK_STOP_MOVING 0"
" TASK_CROW_TAKEOFF 0"
" TASK_CROW_FLY 0"
" "
" Interrupts"
)
//=========================================================
DEFINE_SCHEDULE
(
SCHED_CROW_FLY_FAIL,
" Tasks"
" TASK_CROW_FALL_TO_GROUND 0"
" TASK_SET_SCHEDULE SCHEDULE:SCHED_CROW_IDLE_WALK"
" "
" Interrupts"
)
//=========================================================
// Crow is in the clutches of a barnacle
DEFINE_SCHEDULE
(
SCHED_CROW_BARNACLED,
" Tasks"
" TASK_STOP_MOVING 0"
" TASK_SET_ACTIVITY ACTIVITY:ACT_HOP"
" TASK_CROW_WAIT_FOR_BARNACLE_KILL 0"
" Interrupts"
)
AI_END_CUSTOM_NPC()