blender/source/gameengine/Physics/Bullet/CcdPhysicsController.cpp

401 lines
10 KiB
C++

#include "CcdPhysicsController.h"
#include "Dynamics/RigidBody.h"
#include "PHY_IMotionState.h"
#include "BroadphaseCollision/BroadphaseProxy.h"
#include "CollisionShapes/ConvexShape.h"
#include "CcdPhysicsEnvironment.h"
class BP_Proxy;
///todo: fill all the empty CcdPhysicsController methods, hook them up to the RigidBody class
//'temporarily' global variables
float gDeactivationTime = 2.f;
bool gDisableDeactivation = false;
float gLinearSleepingTreshold = 0.8f;
float gAngularSleepingTreshold = 1.0f;
#include "Dynamics/MassProps.h"
SimdVector3 startVel(0,0,0);//-10000);
CcdPhysicsController::CcdPhysicsController (const CcdConstructionInfo& ci)
:m_cci(ci)
{
m_collisionDelay = 0;
m_newClientInfo = 0;
m_MotionState = ci.m_MotionState;
m_broadphaseHandle = ci.m_broadphaseHandle;
m_collisionShape = ci.m_collisionShape;
CreateRigidbody();
#ifdef WIN32
if (m_body->getInvMass())
m_body->setLinearVelocity(startVel);
#endif
}
void CcdPhysicsController::CreateRigidbody()
{
SimdTransform trans;
float tmp[3];
m_MotionState->getWorldPosition(tmp[0],tmp[1],tmp[2]);
trans.setOrigin(SimdVector3(tmp[0],tmp[1],tmp[2]));
SimdQuaternion orn;
m_MotionState->getWorldOrientation(orn[0],orn[1],orn[2],orn[3]);
trans.setRotation(orn);
MassProps mp(m_cci.m_mass, m_cci.m_localInertiaTensor);
m_body = new RigidBody(mp,0,0,m_cci.m_friction,m_cci.m_restitution);
//
// init the rigidbody properly
//
m_body->setMassProps(m_cci.m_mass, m_cci.m_localInertiaTensor * m_cci.m_inertiaFactor);
m_body->setGravity( m_cci.m_gravity);
m_body->setDamping(m_cci.m_linearDamping, m_cci.m_angularDamping);
m_body->setCenterOfMassTransform( trans );
}
CcdPhysicsController::~CcdPhysicsController()
{
//will be reference counted, due to sharing
//delete m_collisionShape;
m_cci.m_physicsEnv->removeCcdPhysicsController(this);
delete m_MotionState;
delete m_body;
}
/**
SynchronizeMotionStates ynchronizes dynas, kinematic and deformable entities (and do 'late binding')
*/
bool CcdPhysicsController::SynchronizeMotionStates(float time)
{
const SimdVector3& worldPos = m_body->getCenterOfMassPosition();
m_MotionState->setWorldPosition(worldPos[0],worldPos[1],worldPos[2]);
const SimdQuaternion& worldquat = m_body->getOrientation();
m_MotionState->setWorldOrientation(worldquat[0],worldquat[1],worldquat[2],worldquat[3]);
m_MotionState->calculateWorldTransformations();
float scale[3];
m_MotionState->getWorldScaling(scale[0],scale[1],scale[2]);
SimdVector3 scaling(scale[0],scale[1],scale[2]);
m_collisionShape->setLocalScaling(scaling);
return true;
}
/**
WriteMotionStateToDynamics synchronizes dynas, kinematic and deformable entities (and do 'late binding')
*/
void CcdPhysicsController::WriteMotionStateToDynamics(bool nondynaonly)
{
}
void CcdPhysicsController::WriteDynamicsToMotionState()
{
}
// controller replication
void CcdPhysicsController::PostProcessReplica(class PHY_IMotionState* motionstate,class PHY_IPhysicsController* parentctrl)
{
m_MotionState = motionstate;
m_broadphaseHandle = 0;
m_body = 0;
CreateRigidbody();
m_cci.m_physicsEnv->addCcdPhysicsController(this);
/* SM_Object* dynaparent=0;
SumoPhysicsController* sumoparentctrl = (SumoPhysicsController* )parentctrl;
if (sumoparentctrl)
{
dynaparent = sumoparentctrl->GetSumoObject();
}
SM_Object* orgsumoobject = m_sumoObj;
m_sumoObj = new SM_Object(
orgsumoobject->getShapeHandle(),
orgsumoobject->getMaterialProps(),
orgsumoobject->getShapeProps(),
dynaparent);
m_sumoObj->setRigidBody(orgsumoobject->isRigidBody());
m_sumoObj->setMargin(orgsumoobject->getMargin());
m_sumoObj->setPosition(orgsumoobject->getPosition());
m_sumoObj->setOrientation(orgsumoobject->getOrientation());
//if it is a dyna, register for a callback
m_sumoObj->registerCallback(*this);
m_sumoScene->add(* (m_sumoObj));
*/
}
// kinematic methods
void CcdPhysicsController::RelativeTranslate(float dlocX,float dlocY,float dlocZ,bool local)
{
SimdVector3 dloc(dlocX,dlocY,dlocZ);
SimdTransform xform = m_body->getCenterOfMassTransform();
if (local)
{
dloc = xform.getBasis()*dloc;
}
xform.setOrigin(xform.getOrigin() + dloc);
this->m_body->setCenterOfMassTransform(xform);
}
void CcdPhysicsController::RelativeRotate(const float rotval[9],bool local)
{
if (m_body )
{
SimdMatrix3x3 drotmat( rotval[0],rotval[1],rotval[2],
rotval[4],rotval[5],rotval[6],
rotval[8],rotval[9],rotval[10]);
SimdMatrix3x3 currentOrn;
GetWorldOrientation(currentOrn);
SimdTransform xform = m_body->getCenterOfMassTransform();
xform.setBasis(xform.getBasis()*(local ?
drotmat : (currentOrn.inverse() * drotmat * currentOrn)));
m_body->setCenterOfMassTransform(xform);
}
}
void CcdPhysicsController::GetWorldOrientation(SimdMatrix3x3& mat)
{
float orn[4];
m_MotionState->getWorldOrientation(orn[0],orn[1],orn[2],orn[3]);
SimdQuaternion quat(orn[0],orn[1],orn[2],orn[3]);
mat.setRotation(quat);
}
void CcdPhysicsController::getOrientation(float &quatImag0,float &quatImag1,float &quatImag2,float &quatReal)
{
SimdQuaternion q = m_body->getCenterOfMassTransform().getRotation();
quatImag0 = q[0];
quatImag1 = q[1];
quatImag2 = q[2];
quatReal = q[3];
}
void CcdPhysicsController::setOrientation(float quatImag0,float quatImag1,float quatImag2,float quatReal)
{
m_body->activate();
SimdTransform xform = m_body->getCenterOfMassTransform();
xform.setRotation(SimdQuaternion(quatImag0,quatImag1,quatImag2,quatReal));
m_body->setCenterOfMassTransform(xform);
}
void CcdPhysicsController::setPosition(float posX,float posY,float posZ)
{
m_body->activate();
SimdTransform xform = m_body->getCenterOfMassTransform();
xform.setOrigin(SimdVector3(posX,posY,posZ));
m_body->setCenterOfMassTransform(xform);
}
void CcdPhysicsController::resolveCombinedVelocities(float linvelX,float linvelY,float linvelZ,float angVelX,float angVelY,float angVelZ)
{
}
void CcdPhysicsController::getPosition(PHY__Vector3& pos) const
{
const SimdTransform& xform = m_body->getCenterOfMassTransform();
pos[0] = xform.getOrigin().x();
pos[1] = xform.getOrigin().y();
pos[2] = xform.getOrigin().z();
}
void CcdPhysicsController::setScaling(float scaleX,float scaleY,float scaleZ)
{
if (!SimdFuzzyZero(m_cci.m_scaling.x()-scaleX) ||
!SimdFuzzyZero(m_cci.m_scaling.y()-scaleY) ||
!SimdFuzzyZero(m_cci.m_scaling.z()-scaleZ))
{
m_cci.m_scaling = SimdVector3(scaleX,scaleY,scaleZ);
if (m_body && m_body->GetCollisionShape())
{
m_body->GetCollisionShape()->setLocalScaling(m_cci.m_scaling);
m_body->GetCollisionShape()->CalculateLocalInertia(m_cci.m_mass, m_cci.m_localInertiaTensor);
m_body->setMassProps(m_cci.m_mass, m_cci.m_localInertiaTensor * m_cci.m_inertiaFactor);
}
}
}
// physics methods
void CcdPhysicsController::ApplyTorque(float torqueX,float torqueY,float torqueZ,bool local)
{
SimdVector3 torque(torqueX,torqueY,torqueZ);
SimdTransform xform = m_body->getCenterOfMassTransform();
if (local)
{
torque = xform.getBasis()*torque;
}
m_body->applyTorque(torque);
}
void CcdPhysicsController::ApplyForce(float forceX,float forceY,float forceZ,bool local)
{
SimdVector3 force(forceX,forceX,forceX);
SimdTransform xform = m_body->getCenterOfMassTransform();
if (local)
{
force = xform.getBasis()*force;
}
m_body->applyCentralForce(force);
}
void CcdPhysicsController::SetAngularVelocity(float ang_velX,float ang_velY,float ang_velZ,bool local)
{
SimdVector3 angvel(ang_velX,ang_velY,ang_velZ);
SimdTransform xform = m_body->getCenterOfMassTransform();
if (local)
{
angvel = xform.getBasis()*angvel;
}
m_body->setAngularVelocity(angvel);
}
void CcdPhysicsController::SetLinearVelocity(float lin_velX,float lin_velY,float lin_velZ,bool local)
{
SimdVector3 linVel(lin_velX,lin_velY,lin_velZ);
SimdTransform xform = m_body->getCenterOfMassTransform();
if (local)
{
linVel = xform.getBasis()*linVel;
}
m_body->setLinearVelocity(linVel);
}
void CcdPhysicsController::applyImpulse(float attachX,float attachY,float attachZ, float impulseX,float impulseY,float impulseZ)
{
SimdVector3 impulse(impulseX,impulseY,impulseZ);
SimdVector3 pos(attachX,attachY,attachZ);
m_body->activate();
m_body->applyImpulse(impulse,pos);
}
void CcdPhysicsController::SetActive(bool active)
{
}
// reading out information from physics
void CcdPhysicsController::GetLinearVelocity(float& linvX,float& linvY,float& linvZ)
{
const SimdVector3& linvel = this->m_body->getLinearVelocity();
linvX = linvel.x();
linvY = linvel.y();
linvZ = linvel.z();
}
void CcdPhysicsController::GetAngularVelocity(float& angVelX,float& angVelY,float& angVelZ)
{
const SimdVector3& angvel= m_body->getAngularVelocity();
angVelX = angvel.x();
angVelY = angvel.y();
angVelZ = angvel.z();
}
void CcdPhysicsController::GetVelocity(const float posX,const float posY,const float posZ,float& linvX,float& linvY,float& linvZ)
{
SimdVector3 pos(posX,posY,posZ);
SimdVector3 rel_pos = pos-m_body->getCenterOfMassPosition();
SimdVector3 linvel = m_body->getVelocityInLocalPoint(rel_pos);
linvX = linvel.x();
linvY = linvel.y();
linvZ = linvel.z();
}
void CcdPhysicsController::getReactionForce(float& forceX,float& forceY,float& forceZ)
{
}
// dyna's that are rigidbody are free in orientation, dyna's with non-rigidbody are restricted
void CcdPhysicsController::setRigidBody(bool rigid)
{
}
// clientinfo for raycasts for example
void* CcdPhysicsController::getNewClientInfo()
{
return m_newClientInfo;
}
void CcdPhysicsController::setNewClientInfo(void* clientinfo)
{
m_newClientInfo = clientinfo;
}
void CcdPhysicsController::UpdateDeactivation(float timeStep)
{
if ( (m_body->GetActivationState() == 2))
return;
if ((m_body->getLinearVelocity().length2() < gLinearSleepingTreshold*gLinearSleepingTreshold) &&
(m_body->getAngularVelocity().length2() < gAngularSleepingTreshold*gAngularSleepingTreshold))
{
m_body->m_deactivationTime += timeStep;
} else
{
m_body->m_deactivationTime=0.f;
m_body->SetActivationState(0);
}
}
bool CcdPhysicsController::wantsSleeping()
{
//disable deactivation
if (gDisableDeactivation || (gDeactivationTime == 0.f))
return false;
//2 == ISLAND_SLEEPING, 3 == WANTS_DEACTIVATION
if ( (m_body->GetActivationState() == 2) || (m_body->GetActivationState() == 3))
return true;
if (m_body->m_deactivationTime> gDeactivationTime)
{
return true;
}
return false;
}