LTBOOL CAISenseSeeEnemy::Update(HOBJECT hStimulus, LTFLOAT fTimeDelta)
{
if ( !IsCharacter(hStimulus) ) return LTFALSE;
if ( m_pAI->GetCharacterClass() == NEUTRAL )
{
// If we're innocent, we only consider someone an enemy if they have a gun
CCharacter* pCharacter = (CCharacter*)g_pLTServer->HandleToObject(hStimulus);
if ( !pCharacter->HasDangerousWeapon() )
{
return LTFALSE;
}
}
// Instead of looking right at the center of the target, we at a grid of points.
// The grid is a plane with normal equal to the forward vector of the object,
// in the center of the object, clipped to the objects dims. We scan the grid
// at a given resolution and simply advance our scan col/row every frame. Note
// that the grid is aligned with the objects rotation, not the bounding boxes,
// since all the bounding boxes are axis aligned.
int nXRange = m_rngGridX.GetMax() - m_rngGridX.GetMin();
int nYRange = m_rngGridY.GetMax() - m_rngGridY.GetMin();
LTVector vDims;
g_pLTServer->GetObjectDims(hStimulus, &vDims);
LTFLOAT fX = vDims.x * ((LTFLOAT)m_nGridX/(LTFLOAT)nXRange);
LTFLOAT fY = vDims.y * ((LTFLOAT)m_nGridY/(LTFLOAT)nYRange);
LTVector vPosition;
g_pLTServer->GetObjectPos(hStimulus, &vPosition);
LTRotation rRot;
g_pLTServer->GetObjectRotation(hStimulus, &rRot);
LTVector vUp, vRight, vForward;
g_pLTServer->GetRotationVectors(&rRot, &vUp, &vRight, &vForward);
vPosition += vRight*fX;
vPosition += vUp*fY;
// Update the point
LTFLOAT fDistanceSqr;
LTBOOL bVisible;
if ( m_pAI->CanSeeThrough() )
{
bVisible = m_pAI->IsObjectPositionVisibleFromEye(CAI::SeeThroughFilterFn, CAI::SeeThroughPolyFilterFn, hStimulus, vPosition, (m_fDistanceSqr), LTTRUE, &fDistanceSqr);
}
else
{
bVisible = m_pAI->IsObjectPositionVisibleFromEye(CAI::DefaultFilterFn, NULL, hStimulus, vPosition, (m_fDistanceSqr), LTTRUE, &fDistanceSqr);
}
if ( bVisible )
{
if ( fDistanceSqr > g_pAIButeMgr->GetSenses()->fInstantSeeDistanceSqr )
{
LTFLOAT fRateModifier = (1.0f - fDistanceSqr/m_fDistanceSqr);
IncreaseStimulation(fTimeDelta, (fRateModifier));
}
else
{
IncreaseStimulation(fTimeDelta, 99999999.0f);
}
}
// Update our grid col/row values
if ( ++m_nGridX > m_rngGridX.GetMax() )
{
m_nGridX = m_rngGridX.GetMin();
if ( ++m_nGridY > m_rngGridY.GetMax() )
{
m_nGridY = m_rngGridY.GetMin();
}
}
return bVisible;
}
void CAIBrain::GetDodgeStatus(DodgeStatus* peDodgeStatus, Direction* peDirection, DodgeAction* peDodgeAction, uint32* pdwNode)
{
if ( !GetAI()->HasTarget() || !GetAI()->HasLastVolume() )
{
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusOk;
return;
}
if ( g_pLTServer->GetTime() >= m_fDodgeStatusCheckTimeVector )
{
m_fDodgeStatusCheckTimeVector = g_pLTServer->GetTime() + LOWER_BY_DIFFICULTY(m_pBrain->fDodgeVectorCheckTime);
if ( GetRandom(0.0f, 1.0f) <= RAISE_BY_DIFFICULTY(m_pBrain->fDodgeVectorCheckChance) )
{
if ( GetAI()->GetTarget()->IsVisiblePartially() )
{
CCharacter* pCharacter = (CCharacter*)g_pLTServer->HandleToObject(GetAI()->GetTarget()->GetObject());
if ( pCharacter->HasDangerousWeapon() )
{
LTRotation rRot;
LTVector vNull, vForward;
g_pLTServer->GetObjectRotation(GetAI()->GetTarget()->GetObject(), &rRot);
g_pMathLT->GetRotationVectors(rRot, vNull, vNull, vForward);
LTVector vDir;
vDir = GetAI()->GetPosition() - GetAI()->GetTarget()->GetPosition();
vDir.y = 0;
vDir.Norm();
// TODO: bute this
const static LTFLOAT fThreshhold = 0.95f;
if ( (vDir.Dot(vForward) > fThreshhold) && (GetAI()->GetForwardVector().Dot(vForward) < -fThreshhold) )
{
LTFLOAT fCheckDistance;
LTFLOAT fRandom = GetRandom(0.0f, 1.0f);
if ( fRandom > m_pBrain->fDodgeVectorCoverChance )
{
if ( fRandom > (m_pBrain->fDodgeVectorCoverChance + m_pBrain->fDodgeVectorRollChance) )
{
*peDodgeAction = eDodgeActionShuffle;
fCheckDistance = 109.0f;
}
else
{
*peDodgeAction = eDodgeActionRoll;
fCheckDistance = 140.0f;
}
// MAKE SURE WE WON'T DODGE OUT OF THE VOLUME
if ( GetAI()->GetLastVolume()->Inside2d(GetAI()->GetPosition()+GetAI()->GetRightVector()*fCheckDistance, GetAI()->GetRadius()) )
{
*peDirection = eDirectionRight;
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusVector;
return;
}
else if ( GetAI()->GetLastVolume()->Inside2d(GetAI()->GetPosition()-GetAI()->GetRightVector()*fCheckDistance, GetAI()->GetRadius()) )
{
*peDirection = eDirectionLeft;
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusVector;
return;
}
else
{
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusOk;
return;
}
}
else
{
CAINode* pNode = g_pAINodeMgr->FindNearestCoverFromThreat(GetAI()->GetPosition(), GetAI()->GetTarget()->GetObject());
if ( pNode )
{
*peDodgeAction = eDodgeActionCover;
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusVector;
*pdwNode = pNode->GetID();
}
else
{
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusOk;
}
return;
}
}
}
}
}
}
if ( g_pLTServer->GetTime() >= m_fDodgeStatusCheckTimeProjectile )
{
m_fDodgeStatusCheckTimeProjectile = g_pLTServer->GetTime() + RAISE_BY_DIFFICULTY(m_pBrain->fDodgeProjectileCheckTime);
if ( GetRandom(0.0f, 1.0f) <= RAISE_BY_DIFFICULTY(m_pBrain->fDodgeProjectileCheckChance) )
{
CGrenade* pGrenade;
if ( FindGrenadeDangerPosition(GetAI()->GetPosition(), 40000.0f, &m_vDodgeProjectilePosition, &pGrenade) )
{
FREE_HSTRING(m_hstrDodgeProjectileName);
// $STRING
m_hstrDodgeProjectileName = g_pLTServer->CreateString(g_pLTServer->GetObjectName(pGrenade->m_hObject));
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusProjectile;
*peDodgeAction = eDodgeActionFlee;
return;
}
}
}
*peDodgeStatus = m_eDodgeStatusLast = eDodgeStatusOk;
return;
}
