//-----------------------------------------------------------------------------
// Step iteratively toward a destination position
//-----------------------------------------------------------------------------
AIMotorMoveResult_t CAI_Motor::MoveGroundStep( const Vector &newPos, CBaseEntity *pMoveTarget, float yaw, bool bAsFarAsCan, AIMoveTrace_t *pTraceResult )
{
// By definition, this will produce different results than GroundMoveLimit()
// because there's no guarantee that it will step exactly one step
// See how far toward the new position we can step...
// But don't actually test for ground geometric validity;
// if it isn't valid, there's not much we can do about it
AIMoveTrace_t moveTrace;
GetMoveProbe()->TestGroundMove( GetLocalOrigin(), newPos, MASK_NPCSOLID, AITGM_IGNORE_FLOOR, &moveTrace );
if ( pTraceResult )
{
*pTraceResult = moveTrace;
}
bool bHitTarget = (moveTrace.pObstruction && (pMoveTarget == moveTrace.pObstruction ));
// Move forward either if there was no obstruction or if we're told to
// move as far as we can, regardless
bool bIsBlocked = IsMoveBlocked(moveTrace.fStatus);
if ( !bIsBlocked || bAsFarAsCan || bHitTarget )
{
// The true argument here causes it to touch all triggers
// in the volume swept from the previous position to the current position
UTIL_SetOrigin(GetOuter(), moveTrace.vEndPosition, true);
// skip tiny steps, but notify the shadow object of any large steps
if ( moveTrace.flStepUpDistance > 0.1f )
{
float height = clamp( moveTrace.flStepUpDistance, 0, StepHeight() );
IPhysicsObject *pPhysicsObject = GetOuter()->VPhysicsGetObject();
if ( pPhysicsObject )
{
IPhysicsShadowController *pShadow = pPhysicsObject->GetShadowController();
if ( pShadow )
{
pShadow->StepUp( height );
}
}
}
if ( yaw != -1 )
{
QAngle angles = GetLocalAngles();
angles.y = yaw;
SetLocalAngles( angles );
}
if ( bHitTarget )
return AIM_PARTIAL_HIT_TARGET;
if ( !bIsBlocked )
return AIM_SUCCESS;
if ( moveTrace.fStatus == AIMR_BLOCKED_NPC )
return AIM_PARTIAL_HIT_NPC;
return AIM_PARTIAL_HIT_WORLD;
}
return AIM_FAILED;
}
//-----------------------------------------------------------------------------
// Step iteratively toward a destination position
//-----------------------------------------------------------------------------
AIMotorMoveResult_t CAI_Motor::MoveGroundStep( const Vector &newPos, CBaseEntity *pMoveTarget, float yaw, bool bAsFarAsCan, bool bTestZ, AIMoveTrace_t *pTraceResult )
{
// By definition, this will produce different results than GroundMoveLimit()
// because there's no guarantee that it will step exactly one step
// See how far toward the new position we can step...
// But don't actually test for ground geometric validity;
// if it isn't valid, there's not much we can do about it
AIMoveTrace_t moveTrace;
unsigned testFlags = AITGM_IGNORE_FLOOR;
char *pchHackBoolToInt = (char*)(&bTestZ);
if ( *pchHackBoolToInt == 2 )
{
testFlags |= AITGM_CRAWL_LARGE_STEPS;
}
else
{
if ( !bTestZ )
testFlags |= AITGM_2D;
}
#ifdef DEBUG
if ( ai_draw_motor_movement.GetBool() )
testFlags |= AITGM_DRAW_RESULTS;
#endif
GetMoveProbe()->TestGroundMove( GetLocalOrigin(), newPos, GetOuter()->GetAITraceMask(), testFlags, &moveTrace );
if ( pTraceResult )
{
*pTraceResult = moveTrace;
}
bool bHitTarget = (moveTrace.pObstruction && (pMoveTarget == moveTrace.pObstruction ));
// Move forward either if there was no obstruction or if we're told to
// move as far as we can, regardless
bool bIsBlocked = IsMoveBlocked(moveTrace.fStatus);
if ( !bIsBlocked || bAsFarAsCan || bHitTarget )
{
#ifdef DEBUG
if ( GetMoveProbe()->CheckStandPosition( GetLocalOrigin(), GetOuter()->GetAITraceMask() ) && !GetMoveProbe()->CheckStandPosition( moveTrace.vEndPosition, GetOuter()->GetAITraceMask() ) )
{
DevMsg( 2, "Warning: AI motor probably given invalid instructions\n" );
}
#endif
// The true argument here causes it to touch all triggers
// in the volume swept from the previous position to the current position
UTIL_SetOrigin(GetOuter(), moveTrace.vEndPosition, true);
// check to see if our ground entity has changed
// NOTE: This is to detect changes in ground entity as the movement code has optimized out
// ground checks. So now we have to do a simple recheck to make sure we detect when we've
// stepped onto a new entity.
if ( GetOuter()->GetFlags() & FL_ONGROUND )
{
GetOuter()->PhysicsStepRecheckGround();
}
// skip tiny steps, but notify the shadow object of any large steps
if ( moveTrace.flStepUpDistance > 0.1f )
{
float height = clamp( moveTrace.flStepUpDistance, 0, StepHeight() );
IPhysicsObject *pPhysicsObject = GetOuter()->VPhysicsGetObject();
if ( pPhysicsObject )
{
IPhysicsShadowController *pShadow = pPhysicsObject->GetShadowController();
if ( pShadow )
{
pShadow->StepUp( height );
}
}
}
if ( yaw != -1 )
{
QAngle angles = GetLocalAngles();
angles.y = yaw;
SetLocalAngles( angles );
}
if ( bHitTarget )
return AIM_PARTIAL_HIT_TARGET;
if ( !bIsBlocked )
return AIM_SUCCESS;
if ( moveTrace.fStatus == AIMR_BLOCKED_NPC )
return AIM_PARTIAL_HIT_NPC;
return AIM_PARTIAL_HIT_WORLD;
}
return AIM_FAILED;
}
void CPhysicsSystem::PhysicsSimulate()
{
CMiniProfilerGuard mpg(&g_mp_PhysicsSimulate);
VPROF_BUDGET( "CPhysicsSystem::PhysicsSimulate", VPROF_BUDGETGROUP_PHYSICS );
float frametime = gpGlobals->frametime;
if ( physenv )
{
g_Collisions.BufferTouchEvents( true );
#ifdef _DEBUG
physenv->DebugCheckContacts();
#endif
frametime *= cl_phys_timescale.GetFloat();
int maxTicks = cl_phys_maxticks.GetInt();
if ( maxTicks )
{
float maxFrameTime = physenv->GetDeltaFrameTime( maxTicks ) - 1e-4f;
frametime = clamp( frametime, 0, maxFrameTime );
}
physenv->Simulate( frametime );
int activeCount = physenv->GetActiveObjectCount();
g_mp_active_object_count.Add(activeCount);
IPhysicsObject **pActiveList = NULL;
if ( activeCount )
{
PHYS_PROFILE(aUpdateActiveObjects)
pActiveList = (IPhysicsObject **)stackalloc( sizeof(IPhysicsObject *)*activeCount );
physenv->GetActiveObjects( pActiveList );
for ( int i = 0; i < activeCount; i++ )
{
C_BaseEntity *pEntity = reinterpret_cast<C_BaseEntity *>(pActiveList[i]->GetGameData());
if ( pEntity )
{
//const CCollisionProperty *collProp = pEntity->CollisionProp();
//debugoverlay->AddBoxOverlay( collProp->GetCollisionOrigin(), collProp->OBBMins(), collProp->OBBMaxs(), collProp->GetCollisionAngles(), 190, 190, 0, 0, 0.01 );
if ( pEntity->CollisionProp()->DoesVPhysicsInvalidateSurroundingBox() )
{
pEntity->CollisionProp()->MarkSurroundingBoundsDirty();
}
pEntity->VPhysicsUpdate( pActiveList[i] );
IPhysicsShadowController *pShadow = pActiveList[i]->GetShadowController();
if ( pShadow )
{
// active shadow object, check for error
Vector pos, targetPos;
QAngle rot, targetAngles;
pShadow->GetTargetPosition( &targetPos, &targetAngles );
pActiveList[i]->GetPosition( &pos, &rot );
Vector delta = targetPos - pos;
float dist = VectorNormalize(delta);
bool bBlocked = false;
if ( dist > cl_phys_block_dist.GetFloat() )
{
Vector vel;
pActiveList[i]->GetImplicitVelocity( &vel, NULL );
float proj = DotProduct(vel, delta);
if ( proj < dist * cl_phys_block_fraction.GetFloat() )
{
bBlocked = true;
//Msg("%s was blocked %.3f (%.3f proj)!\n", pEntity->GetClassname(), dist, proj );
}
}
Vector targetAxis;
float deltaTargetAngle;
RotationDeltaAxisAngle( rot, targetAngles, targetAxis, deltaTargetAngle );
if ( fabsf(deltaTargetAngle) > 0.5f )
{
AngularImpulse angVel;
pActiveList[i]->GetImplicitVelocity( NULL, &angVel );
float proj = DotProduct( angVel, targetAxis ) * Sign(deltaTargetAngle);
if ( proj < (fabsf(deltaTargetAngle) * cl_phys_block_fraction.GetFloat()) )
{
bBlocked = true;
//Msg("%s was rot blocked %.3f proj %.3f!\n", pEntity->GetClassname(), deltaTargetAngle, proj );
}
}
if ( bBlocked )
{
C_BaseEntity *pBlocker = FindPhysicsBlocker( pActiveList[i] );
if ( pBlocker )
{
if ( IsBlockedShouldDisableCollisions( pEntity ) )
{
PhysDisableEntityCollisions( pEntity, pBlocker );
pActiveList[i]->RecheckContactPoints();
// GetClassname returns a pointer to the same buffer always!
//Msg("%s blocked !", pEntity->GetClassname() ); Msg("by %s\n", pBlocker->GetClassname() );
}
}
}
}
}
}
}
#if 0
if ( cl_visualize_physics_shadows.GetBool() )
{
int entityCount = NUM_ENT_ENTRIES;
for ( int i = 0; i < entityCount; i++ )
{
IClientEntity *pClientEnt = cl_entitylist->GetClientEntity(i);
if ( !pClientEnt )
continue;
C_BaseEntity *pEntity = pClientEnt->GetBaseEntity();
if ( !pEntity )
continue;
Vector pos;
QAngle angle;
IPhysicsObject *pObj = pEntity->VPhysicsGetObject();
if ( !pObj || !pObj->GetShadowController() )
continue;
pObj->GetShadowPosition( &pos, &angle );
debugoverlay->AddBoxOverlay( pos, pEntity->CollisionProp()->OBBMins(), pEntity->CollisionProp()->OBBMaxs(), angle, 255, 255, 0, 32, 0 );
char tmp[256];
V_snprintf( tmp, sizeof(tmp),"%s, (%s)\n", pEntity->GetClassname(), VecToString(angle) );
debugoverlay->AddTextOverlay( pos, 0, tmp );
}
}
#endif
g_Collisions.BufferTouchEvents( false );
g_Collisions.FrameUpdate();
}
physicssound::PlayImpactSounds( m_impactSounds );
}
