void CBoidObject::Physicalize( SBoidContext &bc )
{
pe_params_particle ppart;
//ppart.gravity = Vec3(0,0,0);
ppart.flags = particle_traceable | particle_no_roll | pef_never_affect_triggers | pef_log_collisions;
ppart.mass = 0;
ppart.size = max(bc.fBoidRadius,0.01f);
ppart.thickness = max(bc.fBoidThickness,0.01f);
ppart.gravity = Vec3(0,0,0);
ppart.kAirResistance = 0.0f;
ppart.surface_idx = GetGeometrySurfaceType();
IEntity *pEntity = gEnv->pEntitySystem->GetEntity(m_entity);
if (pEntity)
{
SEntityPhysicalizeParams params;
params.pParticle = &ppart;
params.type = PE_PARTICLE;
pEntity->Physicalize(params);
m_pPhysics = pEntity->GetPhysics();
}
}
void CBoidObject::CreateRigidBox(SBoidContext &bc,const Vec3 &boxSize,float mass,float density)
{
if(m_pPhysics)
{
m_pPhysics = 0;
}
Vec3 orgVelocity = m_speed*m_heading;
if(m_pPhysics && m_pPhysics->GetType() == PE_PARTICLE)
{
pe_params_particle pparams;
m_pPhysics->GetParams(&pparams);
orgVelocity = pparams.velocity*pparams.heading;
}
Quat q(IDENTITY);
CalcOrientation(q);
pe_params_pos bodypos;
bodypos.pos = m_pos;
bodypos.q = q;
bodypos.scale = m_scale;
IEntity *pEntity = gEnv->pEntitySystem->GetEntity(m_entity);
if(!pEntity)
return;
SEntityPhysicalizeParams entityPhysParams;
entityPhysParams.type = PE_RIGID;
pEntity->Physicalize(entityPhysParams);
m_pPhysics = pEntity->GetPhysics();
if(!m_pPhysics)
return;
m_pPhysics->SetParams(&bodypos);
pe_params_flags pf;
pf.flagsOR = pef_never_affect_triggers|pef_never_break;
m_pPhysics->SetParams(&pf);
primitives::box geomBox;
geomBox.Basis.SetIdentity();
geomBox.center.Set(0,0,0);
geomBox.size = boxSize;
geomBox.bOriented = 0;
IGeometry *pGeom = bc.physics->GetGeomManager()->CreatePrimitive(primitives::box::type,&geomBox);
phys_geometry *physGeom = bc.physics->GetGeomManager()->RegisterGeometry(pGeom);
pGeom->Release();
pe_geomparams partpos;
partpos.pos.Set(0,0,0);
if(mass > 0)
partpos.mass = mass; // some fish mass.
if(density > 0)
partpos.density = density;
partpos.surface_idx = GetGeometrySurfaceType();
m_pPhysics->AddGeometry(physGeom,&partpos,0);
bc.physics->GetGeomManager()->UnregisterGeometry(physGeom);
pe_simulation_params symparams;
symparams.damping = 0.3f;
symparams.dampingFreefall = 0.2f;
m_pPhysics->SetParams(&symparams);
pe_params_buoyancy pb;
pb.waterDensity = 1000.0f;
pb.waterDamping = 1;
pb.waterResistance = 1000;
pb.waterPlane.n.Set(0,0,1);
//pb.waterPlane.origin.set(0,0,gEnv->p3DEngine->GetWaterLevel(&m_center));
pb.waterPlane.origin.Set(0,0,bc.waterLevel);
m_pPhysics->SetParams(&pb);
// Set original velocity on physics.
pe_action_set_velocity psetvel;
psetvel.v = orgVelocity;
m_pPhysics->Action(&psetvel);
}
