bool CBaseGrabHandler::SetGrab(SmartScriptTable &rParams)
{
ScriptHandle id;
id.n = 0;
rParams->GetValue("entityId",id);
rParams->GetValue("holdPos",m_grabStats.lHoldPos);
rParams->GetValue("followSpeed",m_grabStats.followSpeed);
m_grabStats.collisionFlags = 0;
rParams->GetValue("collisionFlags",m_grabStats.collisionFlags);
m_grabStats.grabDelay = 0.0f;
rParams->GetValue("grabDelay",m_grabStats.grabDelay);
m_grabStats.throwDelay = 0.0f;
m_grabStats.maxDelay = m_grabStats.grabDelay;
m_grabStats.entityGrabSpot = Vec3 (0.0f, 0.0f, 0.0f);
rParams->GetValue("entityGrabSpot",m_grabStats.entityGrabSpot);
m_grabStats.boneGrabOffset = Vec3 (0.0f, 0.0f, 0.0f);
rParams->GetValue("boneGrabOffset",m_grabStats.boneGrabOffset);
// NOTE Dez 12, 2006: <pvl> the following code was formerly in CBaseGrabHandler::StartGrab().
if (m_grabStats.grabId<1)
{
IEntity *pGrab = gEnv->pEntitySystem->GetEntity((EntityId)id.n);
if (pGrab)
{
float heavyness(0.0f);
float volume(0.0f);
if (!m_pActor->CanPickUpObject(pGrab,heavyness, volume))
return false;
m_grabStats.grabId = (EntityId)id.n;
m_grabStats.additionalRotation = (m_pActor->GetEntity()->GetRotation().GetInverted() * pGrab->GetRotation()).GetNormalized();
//if there is still a link to remove
if (m_grabStats.dropId>0)
{
// NOTE Dez 14, 2006: <pvl> switch collision detection back
// on for the object to be dropped
IgnoreCollision(m_grabStats.dropId,m_grabStats.collisionFlags,false);
m_grabStats.dropId = 0;
}
IgnoreCollision(m_grabStats.grabId,m_grabStats.collisionFlags,true);
return true;
}
} else {
assert (0);
}
return false;
}
void CBaseGrabHandler::Update(float frameTime)
{
//we have to restore the grabbed object collision flag at some point after the throw.
if(m_grabStats.dropId>0)
{
m_grabStats.resetFlagsDelay -= frameTime;
if(m_grabStats.resetFlagsDelay<0.001f)
{
IgnoreCollision(m_grabStats.dropId,m_grabStats.collisionFlags,false);
m_grabStats.dropId = 0;
}
}
if(m_grabStats.grabId<1)
return;
if(m_pActor->GetHealth()<=0)
{
StartDrop();
return;
}
IEntity *pGrab = gEnv->pEntitySystem->GetEntity(m_grabStats.grabId);
if(pGrab)
{
bool grabbing(m_grabStats.grabDelay>0.001f);
if(!grabbing || m_grabStats.usingAnimation)
UpdatePosVelRot(frameTime);
}
else
{
//in case the grabber lost the grabbed object, reset the ignore collision flags
// FIXME Dez 14, 2006: <pvl> the following should be done by
// calling IgnoreCollisions() but that function requires
// id of the grabbed object => needs refactoring
IPhysicalEntity *pActorPhys = m_pActor->GetEntity()->GetPhysics();
if(pActorPhys)
{
pe_action_update_constraint uc;
uc.bRemove = 1;
pActorPhys->Action(&uc);
}
}
// TODO Sep 13, 2007: <pvl> I strongly suspect releaseIKTime is redundant now.
// NOTE Sep 13, 2007: <pvl> note that all timeouts are dodgy here since there's
// no guarantee that the grabbing/throwing animation starts playing immediately
// after the grabbing command is issued.
if(m_grabStats.releaseIKTime>0.001f && m_grabStats.grabDelay < 0.001f)
m_grabStats.releaseIKTime -= frameTime;
}
