TAttachedEffectId CEffectsController::AttachParticleEffect(const char *effectName, const int targetSlot, const char *helperName, const SEffectAttachParams &attachParams)
{
CRY_ASSERT(m_pOwnerEntity);
IParticleEffect* pParticleEffect = gEnv->pParticleManager->FindEffect(effectName);
return AttachParticleEffect(pParticleEffect, targetSlot, helperName, attachParams);
}
//------------------------------------------------------------------------
void CVehicleDamageBehaviorDetachPart::OnDamageEvent(EVehicleDamageBehaviorEvent event, const SVehicleDamageBehaviorEventParams& behaviorParams)
{
if (event == eVDBE_Repair)
return;
if (!m_detachedEntityId && behaviorParams.componentDamageRatio >= 1.0f)
{
CVehiclePartBase* pPart = (CVehiclePartBase*)m_pVehicle->GetPart(m_partName.c_str());
if (!pPart || !pPart->GetStatObj())
return;
if (max(1.f-behaviorParams.randomness, pPart->GetDetachProbability()) < cry_random(0.0f, 1.0f))
return;
IEntity* pDetachedEntity = SpawnDetachedEntity();
if (!pDetachedEntity)
return;
m_detachedEntityId = pDetachedEntity->GetId();
const Matrix34& partWorldTM = pPart->GetWorldTM();
pDetachedEntity->SetWorldTM(partWorldTM);
MovePartToTheNewEntity(pDetachedEntity, pPart);
SEntityPhysicalizeParams physicsParams;
physicsParams.mass = pPart->GetMass();
physicsParams.type = PE_RIGID;
physicsParams.nSlot = 0;
pDetachedEntity->Physicalize(physicsParams);
IPhysicalEntity* pPhysics = pDetachedEntity->GetPhysics();
if (pPhysics)
{
pe_params_part params;
params.flagsOR = geom_collides|geom_floats;
params.flagsColliderAND = ~geom_colltype3;
params.flagsColliderOR = geom_colltype0;
pPhysics->SetParams(¶ms);
pe_action_add_constraint ac;
ac.flags = constraint_inactive|constraint_ignore_buddy;
ac.pBuddy = m_pVehicle->GetEntity()->GetPhysics();
ac.pt[0].Set(0,0,0);
pPhysics->Action(&ac);
// after 1s, remove the constraint again
m_pVehicle->SetTimer(-1, 1000, this);
// set the impulse
const Vec3& velocity = m_pVehicle->GetStatus().vel;
Vec3 baseForce = m_pVehicle->GetEntity()->GetWorldTM().TransformVector(pPart->GetDetachBaseForce());
baseForce *= cry_random(6.0f, 10.0f);
pe_action_impulse actionImpulse;
actionImpulse.impulse = physicsParams.mass * (velocity + baseForce);
actionImpulse.angImpulse = physicsParams.mass * Vec3(cry_random(-1.0f,1.0f), cry_random(-1.0f,1.0f), cry_random(-1.0f,1.0f));
actionImpulse.iApplyTime = 1;
pPhysics->Action(&actionImpulse);
}
// copy vehicle's material to new entity (fixes detaching parts from vehicles with different paints),
// or specify the destroyed material if it exists
IStatObj* pExternalStatObj = pPart->GetExternalGeometry(false); // Get undamaged external geometry (if any)
IMaterial *pMaterial = pExternalStatObj ? pExternalStatObj->GetMaterial() : m_pVehicle->GetEntity()->GetMaterial();
if(event == eVDBE_VehicleDestroyed || event == eVDBE_Hit)
{
if (pExternalStatObj)
{
if (IStatObj* pStatObj = pPart->GetExternalGeometry(true)) // Try to get the destroyed, external geometry material
pMaterial = pStatObj->GetMaterial();
}
else if (m_pVehicle->GetDestroyedMaterial()) // If there is no external geometry, try the vehicle's destroyed material
{
pMaterial = m_pVehicle->GetDestroyedMaterial();
}
}
pDetachedEntity->SetMaterial(pMaterial);
AttachParticleEffect(pDetachedEntity, m_pEffect);
if (m_notifyMovement)
{
SVehicleMovementEventParams params;
params.iValue = pPart->GetIndex();
m_pVehicle->GetMovement()->OnEvent(IVehicleMovement::eVME_PartDetached, params);
}
}
}