void MultipleBoxesExample::initPhysics()
{
m_guiHelper->setUpAxis(1);
createEmptyDynamicsWorld();
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
if (m_dynamicsWorld->getDebugDrawer())
m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe+btIDebugDraw::DBG_DrawContactPoints);
///create a few basic rigid bodies
btBoxShape* groundShape = createBoxShape(btVector3(btScalar(50.),btScalar(50.),btScalar(50.)));
m_collisionShapes.push_back(groundShape);
btTransform groundTransform;
groundTransform.setIdentity();
groundTransform.setOrigin(btVector3(0,-50,0));
{
btScalar mass(0.);
createRigidBody(mass,groundTransform,groundShape, btVector4(0,0,1,1));
}
{
//create a few dynamic rigidbodies
// Re-using the same collision is better for memory usage and performance
btBoxShape* colShape = createBoxShape(btVector3(1,1,1));
m_collisionShapes.push_back(colShape);
/// Create Dynamic Objects
btTransform startTransform;
startTransform.setIdentity();
btScalar mass(1.f);
//rigidbody is dynamic if and only if mass is non zero, otherwise static
bool isDynamic = (mass != 0.f);
btVector3 localInertia(0,0,0);
if (isDynamic)
colShape->calculateLocalInertia(mass,localInertia);
for(int i=0;i<TOTAL_BOXES;++i) {
startTransform.setOrigin(btVector3(
btScalar(0),
btScalar(20+i*2),
btScalar(0)));
createRigidBody(mass,startTransform,colShape);
}
}
m_guiHelper->autogenerateGraphicsObjects(m_dynamicsWorld);
}
BSPSceneObject::BSPSceneObject(char * filename, int curveTesselation) : RigidSceneObject()
{
hasVisibility = true;
bspObject = new BSP();
bspObject->Load(filename,curveTesselation);
bspObject->buildSingleCluster();
bind(bspObject->clusterObject);
// bspObject->disableVIS(true);
// bspObject->showAll(true);
setMass(0);
setMargin(0.01f);
createRigidBody();
mRigidBody->setActivationState(WANTS_DEACTIVATION);
segmentMask = new BITSET;
segmentMask->Init(bspObject->clusterObject.numSegments);
segmentMask->SetAll();
// createRigidBody();
// colShape->setMargin(0.005);
}
void WorldObjectAbstract::initWorldObject(Ogre::SceneManager* m_pSceneMgr, PhysicsWrapper* physics)
{
createRigidBody(physics);
createSceneNode(m_pSceneMgr);
if(physics != NULL)
attachToDynamicWorld(physics);
}
void ConstraintPhysicsSetup::initPhysics()
{
m_guiHelper->setUpAxis(1);
createEmptyDynamicsWorld();
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
int mode = btIDebugDraw::DBG_DrawWireframe + btIDebugDraw::DBG_DrawConstraints + btIDebugDraw::DBG_DrawConstraintLimits;
m_dynamicsWorld->getDebugDrawer()->setDebugMode(mode);
{
SliderParams slider("target vel", &targetVel);
slider.m_minVal = -4;
slider.m_maxVal = 4;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
}
{
SliderParams slider("max impulse", &maxImpulse);
slider.m_minVal = 0;
slider.m_maxVal = 1000;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
}
{
SliderParams slider("actual vel", &actualHingeVelocity);
slider.m_minVal = -4;
slider.m_maxVal = 4;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
}
val = 1.f;
{
SliderParams slider("angle", &val);
slider.m_minVal = -720;
slider.m_maxVal = 720;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
}
{ // create a door using hinge constraint attached to the world
btCollisionShape* pDoorShape = new btBoxShape(btVector3(2.0f, 5.0f, 0.2f));
m_collisionShapes.push_back(pDoorShape);
btTransform doorTrans;
doorTrans.setIdentity();
doorTrans.setOrigin(btVector3(-5.0f, -2.0f, 0.0f));
btRigidBody* pDoorBody = createRigidBody(1.0, doorTrans, pDoorShape);
pDoorBody->setActivationState(DISABLE_DEACTIVATION);
const btVector3 btPivotA(10.f + 2.1f, -2.0f, 0.0f); // right next to the door slightly outside
spDoorHinge = new btHingeAccumulatedAngleConstraint(*pDoorBody, btPivotA, btAxisA);
m_dynamicsWorld->addConstraint(spDoorHinge);
spDoorHinge->setDbgDrawSize(btScalar(5.f));
}
m_guiHelper->autogenerateGraphicsObjects(m_dynamicsWorld);
}
btRigidBody* AWPhysics::PhysicsManager::createBox(float x, float y, float z)
{
return createRigidBody( 10.f,
btTransform( btTransform().getRotation(),
btVector3(x, y, z) ),
new btBoxShape( btVector3(1.0, 1.0, 1.0) ) );
mLogger << "creating Box rigid body";
}
void CoordinateFrameDemoPhysicsSetup::initPhysics(GraphicsPhysicsBridge& gfxBridge)
{
createEmptyDynamicsWorld();
m_dynamicsWorld->setGravity(btVector3(0,0,0));
gfxBridge.createPhysicsDebugDrawer(m_dynamicsWorld);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe+btIDebugDraw::DBG_DrawContactPoints);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(m_dynamicsWorld->getDebugDrawer()->getDebugMode() + btIDebugDraw::DBG_DrawFrames);
btScalar sqr2 = btSqrt(2);
btVector3 tetraVerts[] = {
btVector3(1.f, 0.f, -1/sqr2),
btVector3(-1.f, 0.f, -1/sqr2),
btVector3(0, 1.f, 1/sqr2),
btVector3(0, -1.f, 1/sqr2),
};
{
//create a few dynamic rigidbodies
// Re-using the same collision is better for memory usage and performance
btCompoundShape* hull = new btCompoundShape();
btConvexHullShape* childHull = new btConvexHullShape(&tetraVerts[0].getX(),sizeof(tetraVerts)/sizeof(btVector3),sizeof(btVector3));
childHull->initializePolyhedralFeatures();
btTransform childTrans;
childTrans.setIdentity();
childTrans.setOrigin(btVector3(2,0,0));
hull->addChildShape(childTrans,childHull);
gfxBridge.createCollisionShapeGraphicsObject(hull);
m_collisionShapes.push_back(hull);
/// Create Dynamic Objects
btTransform startTransform;
startTransform.setIdentity();
btScalar mass(1.f);
//rigidbody is dynamic if and only if mass is non zero, otherwise static
bool isDynamic = (mass != 0.f);
btVector3 localInertia(0,0,0);
if (isDynamic)
hull->calculateLocalInertia(mass,localInertia);
startTransform.setOrigin(btVector3(0,0,0));
btRigidBody* body = createRigidBody(mass,startTransform,hull);
gfxBridge.createRigidBodyGraphicsObject(body, btVector3(1, 1, 0));
}
}
ShipPhysicsObject::ShipPhysicsObject(GameObject* go){
// f-16 mass 12000 kg fully loaded
const float mass = 2.0f;
collisionShape = new btBoxShape(btVector3(1.0, 0.5, 1.5));
// Add a pointer to the calling GameObject for collisions
collisionShape->setUserPointer(go);
btVector3 localInertia(0,0,0);
collisionShape->calculateLocalInertia(mass, localInertia);
rigidBody = createRigidBody(collisionShape, mass, btVector3(0,0,0), 0);
rigidBody->setActivationState(DISABLE_DEACTIVATION);
}
btRigidBody* AWPhysics::PhysicsManager::createPlane(float x, float y, float z)
{
return createRigidBody( 0.f, // zero mass == static object
btTransform( btQuaternion::getIdentity(), // wow valgrind memory analyzer found the old bug here...
btVector3(x, y, z) ),
// normal constant
new btStaticPlaneShape( btVector3(0.0, 1.0, 0.0), btScalar(0.0)));
// assume that the plane is placed at: (x, y, z) = scalar*normal
mLogger << "creating Plane rigid body";
}
void StaticObject::instantiateCollisionObject()
{
if(mCompoundShape != NULL)
{
const StaticObjectSettings* staticObjectSettings = static_cast<const StaticObjectSettings*>(mObjectSettings);
btTransform startTransform = btTransform(convert(staticObjectSettings->mInitialOrientation), convert(staticObjectSettings->mInitialPosition));
mMyMotionState = new MyMotionState(mSceneNode, startTransform);
mRigidBody = createRigidBody(startTransform, mCompoundShape, mMyMotionState, 0.f);
mRigidBody->setRestitution(DEFAULT_RESTITUTION_VALUE);
mDynamicWorld->addRigidBody(mRigidBody);
}
}
void MotorDemo::initPhysics()
{
m_guiHelper->setUpAxis(1);
// Setup the basic world
m_Time = 0;
m_fCyclePeriod = 2000.f; // in milliseconds
// m_fMuscleStrength = 0.05f;
// new SIMD solver for joints clips accumulated impulse, so the new limits for the motor
// should be (numberOfsolverIterations * oldLimits)
// currently solver uses 10 iterations, so:
m_fMuscleStrength = 0.5f;
m_collisionConfiguration = new btDefaultCollisionConfiguration();
m_dispatcher = new btCollisionDispatcher(m_collisionConfiguration);
btVector3 worldAabbMin(-10000,-10000,-10000);
btVector3 worldAabbMax(10000,10000,10000);
m_broadphase = new btAxisSweep3 (worldAabbMin, worldAabbMax);
m_solver = new btSequentialImpulseConstraintSolver;
m_dynamicsWorld = new btDiscreteDynamicsWorld(m_dispatcher,m_broadphase,m_solver,m_collisionConfiguration);
m_dynamicsWorld->setInternalTickCallback(motorPreTickCallback,this,true);
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
// Setup a big ground box
{
btCollisionShape* groundShape = new btBoxShape(btVector3(btScalar(200.),btScalar(10.),btScalar(200.)));
m_collisionShapes.push_back(groundShape);
btTransform groundTransform;
groundTransform.setIdentity();
groundTransform.setOrigin(btVector3(0,-10,0));
createRigidBody(btScalar(0.),groundTransform,groundShape);
}
// Spawn one ragdoll
btVector3 startOffset(1,0.5,0);
spawnTestRig(startOffset, false);
startOffset.setValue(-2,0.5,0);
spawnTestRig(startOffset, true);
m_guiHelper->autogenerateGraphicsObjects(m_dynamicsWorld);
}
SmellSensor::SmellSensor(Fixation *fixation, QString typeName, SensorType type,
RigidBodyOrigin::RigidBodyType smellType, btScalar smellRadius) :
Sensor(fixation)
{
this->typeName = typeName;
this->type = type;
this->smellType = smellType;
this->radiusOfSmell = smellRadius;
intensityInput = new BrainIn(0, smellRadius);
brainInputs.append(intensityInput);
createRigidBody(smellRadius);
}
void MultiBodyVehicleSetup::initPhysics(GraphicsPhysicsBridge& gfxBridge)
{
int upAxis = 1;
btVector4 colors[4] =
{
btVector4(1,0,0,1),
btVector4(0,1,0,1),
btVector4(0,1,1,1),
btVector4(1,1,0,1),
};
int curColor = 0;
gfxBridge.setUpAxis(upAxis);
this->createEmptyDynamicsWorld();
gfxBridge.createPhysicsDebugDrawer(m_dynamicsWorld);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(
//btIDebugDraw::DBG_DrawConstraints
+btIDebugDraw::DBG_DrawWireframe
+btIDebugDraw::DBG_DrawContactPoints
+btIDebugDraw::DBG_DrawAabb
);//+btIDebugDraw::DBG_DrawConstraintLimits);
createMultiBodyVehicle();
if (1)
{
btVector3 groundHalfExtents(20,20,20);
groundHalfExtents[upAxis]=1.f;
btBoxShape* box = new btBoxShape(groundHalfExtents);
box->initializePolyhedralFeatures();
gfxBridge.createCollisionShapeGraphicsObject(box);
btTransform start; start.setIdentity();
btVector3 groundOrigin(0,0,0);
groundOrigin[upAxis]=-1.5;
start.setOrigin(groundOrigin);
btRigidBody* body = createRigidBody(0,start,box);
btVector4 color = colors[curColor];
curColor++;
curColor&=3;
gfxBridge.createRigidBodyGraphicsObject(body,color);
}
}
// To create from serialization data
SmellSensor::SmellSensor(QVariant data, RigidBodyOrigin::RigidBodyType smellType, Fixation * fixation) : Sensor(data, fixation)
{
QVariantMap map = data.toMap();
this->smellType = smellType;
intensityInput = new BrainIn(map["intensityInput"]);
// the max value equals radius of smell !
radiusOfSmell = map["radiusOfSmell"].toFloat();
//intensityInput->setMax(radiusOfSmell);
brainInputs.append(intensityInput);
createRigidBody(radiusOfSmell);
}
void btWorldImporter::convertRigidBodyDouble( btRigidBodyDoubleData* colObjData)
{
btScalar mass = btScalar(colObjData->m_inverseMass? 1.f/colObjData->m_inverseMass : 0.f);
btVector3 localInertia;
localInertia.setZero();
btCollisionShape** shapePtr = m_shapeMap.find(colObjData->m_collisionObjectData.m_collisionShape);
if (shapePtr && *shapePtr)
{
btTransform startTransform;
colObjData->m_collisionObjectData.m_worldTransform.m_origin.m_floats[3] = 0.f;
startTransform.deSerializeDouble(colObjData->m_collisionObjectData.m_worldTransform);
// startTransform.setBasis(btMatrix3x3::getIdentity());
btCollisionShape* shape = (btCollisionShape*)*shapePtr;
if (shape->isNonMoving())
{
mass = 0.f;
}
if (mass)
{
shape->calculateLocalInertia(mass,localInertia);
}
bool isDynamic = mass!=0.f;
btRigidBody* body = createRigidBody(isDynamic,mass,startTransform,shape,colObjData->m_collisionObjectData.m_name);
body->setFriction(static_cast<btScalar>(colObjData->m_collisionObjectData.m_friction));
body->setRestitution(static_cast<btScalar>(colObjData->m_collisionObjectData.m_restitution));
#ifdef USE_INTERNAL_EDGE_UTILITY
if (shape->getShapeType() == TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
btBvhTriangleMeshShape* trimesh = (btBvhTriangleMeshShape*)shape;
if (trimesh->getTriangleInfoMap())
{
body->setCollisionFlags(body->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK);
}
}
#endif //USE_INTERNAL_EDGE_UTILITY
m_bodyMap.insert(colObjData,body);
} else
{
printf("error: no shape found\n");
}
}
boing::boing(MObject inputShape,MString inname, MString inTypeName, MVector pos, MVector vel, MVector rot, MVector av, float mass)
{
node = inputShape;
name = inname;
typeName = inTypeName;
m_initial_velocity = vel;
m_initial_position = pos;
m_initial_rotation = rot;
m_initial_angularvelocity = av;
m_mass = mass;
attrArray = MStringArray();
dataArray = MStringArray();
m_collision_shape = createCollisionShape(node);
/*cout<<"m_collision_shape : "<<m_collision_shape<<endl;
std::cout<<"creating a new (boing::boing) boing node : "<<inname<<" type "<<inTypeName<<"from node "<<MFnDependencyNode(inputShape).name()<<" in pos "<<m_initial_position<<" vel "<<m_initial_velocity<<" rotation "<<m_initial_rotation<<" and av "<<m_initial_angularvelocity<<endl;*/
count++;
std::cout<<"count = "<<count<<std::endl;
createRigidBody();
}
void ColladaConverter::PreparePhysicsObject(struct btRigidBodyInput& input, bool isDynamics, btScalar mass,btCollisionShape* colShape)
{
btTransform startTransform;
startTransform.setIdentity();
btVector3 startScale(1.f,1.f,1.f);
//The 'target' points to a graphics element/node, which contains the start (world) transform
daeElementRef elem = input.m_instanceRigidBodyRef->getTarget().getElement();
if (elem)
{
domNodeRef node = *(domNodeRef*)&elem;
m_colladadomNodes[m_numObjects] = node;
//find transform of the node that this rigidbody maps to
startTransform = GetbtTransformFromCOLLADA_DOM(
node->getMatrix_array(),
node->getRotate_array(),
node->getTranslate_array(),
m_unitMeterScaling
);
unsigned int i;
for (i=0;i<node->getScale_array().getCount();i++)
{
domScaleRef scaleRef = node->getScale_array()[i];
domFloat3 fl3 = scaleRef->getValue();
startScale = btVector3((btScalar)fl3.get(0),(btScalar)fl3.get(1),(btScalar)fl3.get(2));
}
btRigidBody* body= createRigidBody(elem->getID(), isDynamics, (float) mass,startTransform,colShape);
if (body)
{
//bodyName is used as identifier for constraints
body->setUserPointer((void*)input.m_bodyName);
m_rigidBodies[m_numObjects] = body;
m_numObjects++;
}
}
}
// virtual
void Mechanism::initialize(stateStruct& startState){
// Set necessary parameters from startState before initializing physics
setStartWithState(startState); // Virtual function: not defined in this file
// Initialize Physics
// set up world
broadphase_ = new btDbvtBroadphase();
collisionConfiguration_ = new btDefaultCollisionConfiguration();
dispatcher_ = new btCollisionDispatcher(collisionConfiguration_);
solver_ = new btSequentialImpulseConstraintSolver;
dynamicsWorld_ = new btDiscreteDynamicsWorld(dispatcher_,broadphase_,solver_,collisionConfiguration_);
// set gravity. y is apparently up.
dynamicsWorld_->setGravity(btVector3(0,-10,0));
//----------------OBJECT CREATION SECTION-------------------//
//make the ground plane
gndCS_ = new btBoxShape(btVector3(btScalar(50.),btScalar(50.),btScalar(50.)));
btTransform gndBT;
gndBT.setIdentity();
gndBT.setOrigin(btVector3(0.0f,-50.0f,0.0f));
btScalar gndMass(0.0);
//create the ground plane rigid body
gndRB_ = createRigidBody(gndCS_,gndMass,gndBT);
//add it to the dynamics world
dynamicsWorld_->addRigidBody(gndRB_);
//--------------END OBJECT CREATION SECTION-----------------//
//---------INITIALIZE REMAINING PARAMETERS SECTION----------//
//set controller values
pGains_.setValue(5.0f,50.0f,5.0f);
dGains_.setValue(2.0f,2.0f,2.0f);
// change friction
gndRB_->setFriction(0.1);
//-------END INITIALIZE REMAINING PARAMETERS SECTION-------//
}
void TestJointTorqueSetup::initPhysics()
{
int upAxis = 1;
gJointFeedbackInWorldSpace = true;
gJointFeedbackInJointFrame = true;
m_guiHelper->setUpAxis(upAxis);
btVector4 colors[4] =
{
btVector4(1,0,0,1),
btVector4(0,1,0,1),
btVector4(0,1,1,1),
btVector4(1,1,0,1),
};
int curColor = 0;
this->createEmptyDynamicsWorld();
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(
//btIDebugDraw::DBG_DrawConstraints
+btIDebugDraw::DBG_DrawWireframe
+btIDebugDraw::DBG_DrawContactPoints
+btIDebugDraw::DBG_DrawAabb
);//+btIDebugDraw::DBG_DrawConstraintLimits);
//create a static ground object
if (1)
{
btVector3 groundHalfExtents(1,1,0.2);
groundHalfExtents[upAxis]=1.f;
btBoxShape* box = new btBoxShape(groundHalfExtents);
box->initializePolyhedralFeatures();
m_guiHelper->createCollisionShapeGraphicsObject(box);
btTransform start; start.setIdentity();
btVector3 groundOrigin(-0.4f, 3.f, 0.f);
groundOrigin[upAxis] -=.5;
groundOrigin[2]-=0.6;
start.setOrigin(groundOrigin);
btQuaternion groundOrn(btVector3(0,1,0),0.25*SIMD_PI);
// start.setRotation(groundOrn);
btRigidBody* body = createRigidBody(0,start,box);
body->setFriction(0);
btVector4 color = colors[curColor];
curColor++;
curColor&=3;
m_guiHelper->createRigidBodyGraphicsObject(body,color);
}
{
bool floating = false;
bool damping = false;
bool gyro = false;
int numLinks = 2;
bool spherical = false; //set it ot false -to use 1DoF hinges instead of 3DoF sphericals
bool canSleep = false;
bool selfCollide = false;
btVector3 linkHalfExtents(0.05, 0.37, 0.1);
btVector3 baseHalfExtents(0.05, 0.37, 0.1);
btVector3 basePosition = btVector3(-0.4f, 3.f, 0.f);
//mbC->forceMultiDof(); //if !spherical, you can comment this line to check the 1DoF algorithm
//init the base
btVector3 baseInertiaDiag(0.f, 0.f, 0.f);
float baseMass = 1.f;
if(baseMass)
{
//btCollisionShape *shape = new btSphereShape(baseHalfExtents[0]);// btBoxShape(btVector3(baseHalfExtents[0], baseHalfExtents[1], baseHalfExtents[2]));
btCollisionShape *shape = new btBoxShape(btVector3(baseHalfExtents[0], baseHalfExtents[1], baseHalfExtents[2]));
shape->calculateLocalInertia(baseMass, baseInertiaDiag);
delete shape;
}
bool isMultiDof = true;
btMultiBody *pMultiBody = new btMultiBody(numLinks, baseMass, baseInertiaDiag, !floating, canSleep, isMultiDof);
m_multiBody = pMultiBody;
btQuaternion baseOriQuat(0.f, 0.f, 0.f, 1.f);
// baseOriQuat.setEulerZYX(-.25*SIMD_PI,0,-1.75*SIMD_PI);
pMultiBody->setBasePos(basePosition);
pMultiBody->setWorldToBaseRot(baseOriQuat);
btVector3 vel(0, 0, 0);
// pMultiBody->setBaseVel(vel);
//init the links
btVector3 hingeJointAxis(1, 0, 0);
//y-axis assumed up
btVector3 parentComToCurrentCom(0, -linkHalfExtents[1] * 2.f, 0); //par body's COM to cur body's COM offset
btVector3 currentPivotToCurrentCom(0, -linkHalfExtents[1], 0); //cur body's COM to cur body's PIV offset
btVector3 parentComToCurrentPivot = parentComToCurrentCom - currentPivotToCurrentCom; //par body's COM to cur body's PIV offset
//////
btScalar q0 = 0.f * SIMD_PI/ 180.f;
btQuaternion quat0(btVector3(0, 1, 0).normalized(), q0);
quat0.normalize();
/////
for(int i = 0; i < numLinks; ++i)
{
float linkMass = 1.f;
//if (i==3 || i==2)
// linkMass= 1000;
btVector3 linkInertiaDiag(0.f, 0.f, 0.f);
btCollisionShape* shape = 0;
if (i==0)
{
shape = new btBoxShape(btVector3(linkHalfExtents[0], linkHalfExtents[1], linkHalfExtents[2]));//
} else
{
shape = new btSphereShape(radius);
}
shape->calculateLocalInertia(linkMass, linkInertiaDiag);
delete shape;
if(!spherical)
{
//pMultiBody->setupRevolute(i, linkMass, linkInertiaDiag, i - 1, btQuaternion(0.f, 0.f, 0.f, 1.f), hingeJointAxis, parentComToCurrentPivot, currentPivotToCurrentCom, false);
if (i==0)
{
pMultiBody->setupRevolute(i, linkMass, linkInertiaDiag, i - 1,
btQuaternion(0.f, 0.f, 0.f, 1.f),
hingeJointAxis,
parentComToCurrentPivot,
currentPivotToCurrentCom, false);
} else
{
btVector3 parentComToCurrentCom(0, -radius * 2.f, 0); //par body's COM to cur body's COM offset
btVector3 currentPivotToCurrentCom(0, -radius, 0); //cur body's COM to cur body's PIV offset
btVector3 parentComToCurrentPivot = parentComToCurrentCom - currentPivotToCurrentCom; //par body's COM to cur body's PIV offset
pMultiBody->setupFixed(i, linkMass, linkInertiaDiag, i - 1,
btQuaternion(0.f, 0.f, 0.f, 1.f),
parentComToCurrentPivot,
currentPivotToCurrentCom, false);
}
//pMultiBody->setupFixed(i,linkMass,linkInertiaDiag,i-1,btQuaternion(0,0,0,1),parentComToCurrentPivot,currentPivotToCurrentCom,false);
}
else
{
//pMultiBody->setupPlanar(i, linkMass, linkInertiaDiag, i - 1, btQuaternion(0.f, 0.f, 0.f, 1.f)/*quat0*/, btVector3(1, 0, 0), parentComToCurrentPivot*2, false);
pMultiBody->setupSpherical(i, linkMass, linkInertiaDiag, i - 1, btQuaternion(0.f, 0.f, 0.f, 1.f), parentComToCurrentPivot, currentPivotToCurrentCom, false);
}
}
pMultiBody->finalizeMultiDof();
//for (int i=pMultiBody->getNumLinks()-1;i>=0;i--)//
for (int i=0;i<pMultiBody->getNumLinks();i++)
{
btMultiBodyJointFeedback* fb = new btMultiBodyJointFeedback();
pMultiBody->getLink(i).m_jointFeedback = fb;
m_jointFeedbacks.push_back(fb);
//break;
}
btMultiBodyDynamicsWorld* world = m_dynamicsWorld;
///
world->addMultiBody(pMultiBody);
btMultiBody* mbC = pMultiBody;
mbC->setCanSleep(canSleep);
mbC->setHasSelfCollision(selfCollide);
mbC->setUseGyroTerm(gyro);
//
if(!damping)
{
mbC->setLinearDamping(0.f);
mbC->setAngularDamping(0.f);
}else
{ mbC->setLinearDamping(0.1f);
mbC->setAngularDamping(0.9f);
}
//
m_dynamicsWorld->setGravity(btVector3(0,0,-10));
//////////////////////////////////////////////
if(0)//numLinks > 0)
{
btScalar q0 = 45.f * SIMD_PI/ 180.f;
if(!spherical)
if(mbC->isMultiDof())
mbC->setJointPosMultiDof(0, &q0);
else
mbC->setJointPos(0, q0);
else
{
btQuaternion quat0(btVector3(1, 1, 0).normalized(), q0);
quat0.normalize();
mbC->setJointPosMultiDof(0, quat0);
}
}
///
btAlignedObjectArray<btQuaternion> world_to_local;
world_to_local.resize(pMultiBody->getNumLinks() + 1);
btAlignedObjectArray<btVector3> local_origin;
local_origin.resize(pMultiBody->getNumLinks() + 1);
world_to_local[0] = pMultiBody->getWorldToBaseRot();
local_origin[0] = pMultiBody->getBasePos();
// double friction = 1;
{
// float pos[4]={local_origin[0].x(),local_origin[0].y(),local_origin[0].z(),1};
// btScalar quat[4]={-world_to_local[0].x(),-world_to_local[0].y(),-world_to_local[0].z(),world_to_local[0].w()};
if (1)
{
btCollisionShape* shape = new btBoxShape(btVector3(baseHalfExtents[0],baseHalfExtents[1],baseHalfExtents[2]));//new btSphereShape(baseHalfExtents[0]);
m_guiHelper->createCollisionShapeGraphicsObject(shape);
btMultiBodyLinkCollider* col= new btMultiBodyLinkCollider(pMultiBody, -1);
col->setCollisionShape(shape);
btTransform tr;
tr.setIdentity();
//if we don't set the initial pose of the btCollisionObject, the simulator will do this
//when syncing the btMultiBody link transforms to the btMultiBodyLinkCollider
tr.setOrigin(local_origin[0]);
btQuaternion orn(btVector3(0,0,1),0.25*3.1415926538);
tr.setRotation(orn);
col->setWorldTransform(tr);
bool isDynamic = (baseMass > 0 && floating);
short collisionFilterGroup = isDynamic? short(btBroadphaseProxy::DefaultFilter) : short(btBroadphaseProxy::StaticFilter);
short collisionFilterMask = isDynamic? short(btBroadphaseProxy::AllFilter) : short(btBroadphaseProxy::AllFilter ^ btBroadphaseProxy::StaticFilter);
world->addCollisionObject(col,collisionFilterGroup,collisionFilterMask);//, 2,1+2);
btVector3 color(0.0,0.0,0.5);
m_guiHelper->createCollisionObjectGraphicsObject(col,color);
// col->setFriction(friction);
pMultiBody->setBaseCollider(col);
}
}
for (int i=0; i < pMultiBody->getNumLinks(); ++i)
{
const int parent = pMultiBody->getParent(i);
world_to_local[i+1] = pMultiBody->getParentToLocalRot(i) * world_to_local[parent+1];
local_origin[i+1] = local_origin[parent+1] + (quatRotate(world_to_local[i+1].inverse() , pMultiBody->getRVector(i)));
}
for (int i=0; i < pMultiBody->getNumLinks(); ++i)
{
btVector3 posr = local_origin[i+1];
// float pos[4]={posr.x(),posr.y(),posr.z(),1};
btScalar quat[4]={-world_to_local[i+1].x(),-world_to_local[i+1].y(),-world_to_local[i+1].z(),world_to_local[i+1].w()};
btCollisionShape* shape =0;
if (i==0)
{
shape = new btBoxShape(btVector3(linkHalfExtents[0],linkHalfExtents[1],linkHalfExtents[2]));//btSphereShape(linkHalfExtents[0]);
} else
{
shape = new btSphereShape(radius);
}
m_guiHelper->createCollisionShapeGraphicsObject(shape);
btMultiBodyLinkCollider* col = new btMultiBodyLinkCollider(pMultiBody, i);
col->setCollisionShape(shape);
btTransform tr;
tr.setIdentity();
tr.setOrigin(posr);
tr.setRotation(btQuaternion(quat[0],quat[1],quat[2],quat[3]));
col->setWorldTransform(tr);
// col->setFriction(friction);
bool isDynamic = 1;//(linkMass > 0);
short collisionFilterGroup = isDynamic? short(btBroadphaseProxy::DefaultFilter) : short(btBroadphaseProxy::StaticFilter);
short collisionFilterMask = isDynamic? short(btBroadphaseProxy::AllFilter) : short(btBroadphaseProxy::AllFilter ^ btBroadphaseProxy::StaticFilter);
//if (i==0||i>numLinks-2)
{
world->addCollisionObject(col,collisionFilterGroup,collisionFilterMask);//,2,1+2);
btVector4 color = colors[curColor];
curColor++;
curColor&=3;
m_guiHelper->createCollisionObjectGraphicsObject(col,color);
pMultiBody->getLink(i).m_collider=col;
}
}
}
btSerializer* s = new btDefaultSerializer;
m_dynamicsWorld->serialize(s);
b3ResourcePath p;
char resourcePath[1024];
if (p.findResourcePath("multibody.bullet",resourcePath,1024))
{
FILE* f = fopen(resourcePath,"wb");
fwrite(s->getBufferPointer(),s->getCurrentBufferSize(),1,f);
fclose(f);
}
}
PxActor* World::addPlane(const ofVec3f& pos, const ofQuaternion& rot, float mass)
{
assert(inited);
return createRigidBody(PxPlaneGeometry(), mass, pos, rot);
}
PxActor* World::addCapsule(const float radius, const float height, const ofVec3f& pos, const ofQuaternion& rot, float mass)
{
assert(inited);
return createRigidBody(PxCapsuleGeometry(radius, height), mass, pos, rot);
}
PxActor* World::addSphere(const float size, const ofVec3f& pos, const ofQuaternion& rot, float mass)
{
assert(inited);
return createRigidBody(PxSphereGeometry(size), mass, pos, rot);
}
PxActor* World::addBox(const ofVec3f& size, const ofVec3f& pos, const ofQuaternion& rot, float mass)
{
assert(inited);
return createRigidBody(PxBoxGeometry(toPx(size)), mass, pos, rot);
}
void BasicExample::initPhysics()
{
m_guiHelper->setUpAxis(1);
createEmptyDynamicsWorld();
//m_dynamicsWorld->setGravity(btVector3(0,0,0));
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
if (m_dynamicsWorld->getDebugDrawer())
m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe+btIDebugDraw::DBG_DrawContactPoints);
///create a few basic rigid bodies
btBoxShape* groundShape = createBoxShape(btVector3(btScalar(50.),btScalar(50.),btScalar(50.)));
//groundShape->initializePolyhedralFeatures();
//btCollisionShape* groundShape = new btStaticPlaneShape(btVector3(0,1,0),50);
m_collisionShapes.push_back(groundShape);
btTransform groundTransform;
groundTransform.setIdentity();
groundTransform.setOrigin(btVector3(0,-50,0));
{
btScalar mass(0.);
createRigidBody(mass,groundTransform,groundShape, btVector4(0,0,1,1));
}
{
//create a few dynamic rigidbodies
// Re-using the same collision is better for memory usage and performance
btBoxShape* colShape = createBoxShape(btVector3(.1,.1,.1));
//btCollisionShape* colShape = new btSphereShape(btScalar(1.));
m_collisionShapes.push_back(colShape);
/// Create Dynamic Objects
btTransform startTransform;
startTransform.setIdentity();
btScalar mass(1.f);
//rigidbody is dynamic if and only if mass is non zero, otherwise static
bool isDynamic = (mass != 0.f);
btVector3 localInertia(0,0,0);
if (isDynamic)
colShape->calculateLocalInertia(mass,localInertia);
for (int k=0;k<ARRAY_SIZE_Y;k++)
{
for (int i=0;i<ARRAY_SIZE_X;i++)
{
for(int j = 0;j<ARRAY_SIZE_Z;j++)
{
startTransform.setOrigin(btVector3(
btScalar(0.2*i),
btScalar(2+.2*k),
btScalar(0.2*j)));
createRigidBody(mass,startTransform,colShape);
}
}
}
}
m_guiHelper->autogenerateGraphicsObjects(m_dynamicsWorld);
}
void ImportUrdfSetup::initPhysics()
{
m_guiHelper->setUpAxis(m_upAxis);
this->createEmptyDynamicsWorld();
//m_dynamicsWorld->getSolverInfo().m_numIterations = 100;
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(
btIDebugDraw::DBG_DrawConstraints
+btIDebugDraw::DBG_DrawContactPoints
+btIDebugDraw::DBG_DrawAabb
);//+btIDebugDraw::DBG_DrawConstraintLimits);
if (m_guiHelper->getParameterInterface())
{
SliderParams slider("Gravity", &m_grav);
slider.m_minVal = -10;
slider.m_maxVal = 10;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
}
BulletURDFImporter u2b(m_guiHelper, 0);
bool loadOk = u2b.loadURDF(m_fileName);
#ifdef TEST_MULTIBODY_SERIALIZATION
//test to serialize a multibody to disk or shared memory, with base, link and joint names
btSerializer* s = new btDefaultSerializer;
#endif //TEST_MULTIBODY_SERIALIZATION
if (loadOk)
{
//printTree(u2b,u2b.getRootLinkIndex());
//u2b.printTree();
btTransform identityTrans;
identityTrans.setIdentity();
{
//todo: move these internal API called inside the 'ConvertURDF2Bullet' call, hidden from the user
//int rootLinkIndex = u2b.getRootLinkIndex();
//b3Printf("urdf root link index = %d\n",rootLinkIndex);
MyMultiBodyCreator creation(m_guiHelper);
ConvertURDF2Bullet(u2b,creation, identityTrans,m_dynamicsWorld,m_useMultiBody,u2b.getPathPrefix());
m_data->m_rb = creation.getRigidBody();
m_data->m_mb = creation.getBulletMultiBody();
btMultiBody* mb = m_data->m_mb;
for (int i = 0; i < u2b.getNumAllocatedCollisionShapes(); i++)
{
m_collisionShapes.push_back(u2b.getAllocatedCollisionShape(i));
}
if (m_useMultiBody && mb )
{
std::string* name = new std::string(u2b.getLinkName(u2b.getRootLinkIndex()));
m_nameMemory.push_back(name);
#ifdef TEST_MULTIBODY_SERIALIZATION
s->registerNameForPointer(name->c_str(),name->c_str());
#endif//TEST_MULTIBODY_SERIALIZATION
mb->setBaseName(name->c_str());
//create motors for each btMultiBody joint
int numLinks = mb->getNumLinks();
for (int i=0;i<numLinks;i++)
{
int mbLinkIndex = i;
int urdfLinkIndex = creation.m_mb2urdfLink[mbLinkIndex];
std::string* jointName = new std::string(u2b.getJointName(urdfLinkIndex));
std::string* linkName = new std::string(u2b.getLinkName(urdfLinkIndex).c_str());
#ifdef TEST_MULTIBODY_SERIALIZATION
s->registerNameForPointer(jointName->c_str(),jointName->c_str());
s->registerNameForPointer(linkName->c_str(),linkName->c_str());
#endif//TEST_MULTIBODY_SERIALIZATION
m_nameMemory.push_back(jointName);
m_nameMemory.push_back(linkName);
mb->getLink(i).m_linkName = linkName->c_str();
mb->getLink(i).m_jointName = jointName->c_str();
if (mb->getLink(mbLinkIndex).m_jointType==btMultibodyLink::eRevolute
||mb->getLink(mbLinkIndex).m_jointType==btMultibodyLink::ePrismatic
)
{
if (m_data->m_numMotors<MAX_NUM_MOTORS)
{
char motorName[1024];
sprintf(motorName,"%s q'", jointName->c_str());
btScalar* motorVel = &m_data->m_motorTargetVelocities[m_data->m_numMotors];
*motorVel = 0.f;
SliderParams slider(motorName,motorVel);
slider.m_minVal=-4;
slider.m_maxVal=4;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
float maxMotorImpulse = 10.1f;
btMultiBodyJointMotor* motor = new btMultiBodyJointMotor(mb,mbLinkIndex,0,0,maxMotorImpulse);
//motor->setMaxAppliedImpulse(0);
m_data->m_jointMotors[m_data->m_numMotors]=motor;
m_dynamicsWorld->addMultiBodyConstraint(motor);
m_data->m_numMotors++;
}
}
}
} else
{
if (1)
{
//create motors for each generic joint
int num6Dof = creation.getNum6DofConstraints();
for (int i=0;i<num6Dof;i++)
{
btGeneric6DofSpring2Constraint* c = creation.get6DofConstraint(i);
if (c->getUserConstraintPtr())
{
GenericConstraintUserInfo* jointInfo = (GenericConstraintUserInfo*)c->getUserConstraintPtr();
if ((jointInfo->m_urdfJointType ==URDFRevoluteJoint) ||
(jointInfo->m_urdfJointType ==URDFPrismaticJoint) ||
(jointInfo->m_urdfJointType ==URDFContinuousJoint))
{
int urdfLinkIndex = jointInfo->m_urdfIndex;
std::string jointName = u2b.getJointName(urdfLinkIndex);
char motorName[1024];
sprintf(motorName,"%s q'", jointName.c_str());
btScalar* motorVel = &m_data->m_motorTargetVelocities[m_data->m_numMotors];
*motorVel = 0.f;
SliderParams slider(motorName,motorVel);
slider.m_minVal=-4;
slider.m_maxVal=4;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
m_data->m_generic6DofJointMotors[m_data->m_numMotors]=c;
bool motorOn = true;
c->enableMotor(jointInfo->m_jointAxisIndex,motorOn);
c->setMaxMotorForce(jointInfo->m_jointAxisIndex,10000);
c->setTargetVelocity(jointInfo->m_jointAxisIndex,0);
m_data->m_numMotors++;
}
}
}
}
}
}
//the btMultiBody support is work-in-progress :-)
for (int i=0;i<m_dynamicsWorld->getNumMultiBodyConstraints();i++)
{
m_dynamicsWorld->getMultiBodyConstraint(i)->finalizeMultiDof();
}
bool createGround=true;
if (createGround)
{
btVector3 groundHalfExtents(20,20,20);
groundHalfExtents[m_upAxis]=1.f;
btBoxShape* box = new btBoxShape(groundHalfExtents);
m_collisionShapes.push_back(box);
box->initializePolyhedralFeatures();
m_guiHelper->createCollisionShapeGraphicsObject(box);
btTransform start; start.setIdentity();
btVector3 groundOrigin(0,0,0);
groundOrigin[m_upAxis]=-2.5;
start.setOrigin(groundOrigin);
btRigidBody* body = createRigidBody(0,start,box);
//m_dynamicsWorld->removeRigidBody(body);
// m_dynamicsWorld->addRigidBody(body,2,1);
btVector3 color(0.5,0.5,0.5);
m_guiHelper->createRigidBodyGraphicsObject(body,color);
}
}
#ifdef TEST_MULTIBODY_SERIALIZATION
m_dynamicsWorld->serialize(s);
b3ResourcePath p;
char resourcePath[1024];
if (p.findResourcePath("r2d2_multibody.bullet",resourcePath,1024))
{
FILE* f = fopen(resourcePath,"wb");
fwrite(s->getBufferPointer(),s->getCurrentBufferSize(),1,f);
fclose(f);
}
#endif//TEST_MULTIBODY_SERIALIZATION
}
void Hinge2Vehicle::initPhysics()
{
m_guiHelper->setUpAxis(1);
btCollisionShape* groundShape = new btBoxShape(btVector3(50,3,50));
m_collisionShapes.push_back(groundShape);
m_collisionConfiguration = new btDefaultCollisionConfiguration();
m_dispatcher = new btCollisionDispatcher(m_collisionConfiguration);
btVector3 worldMin(-1000,-1000,-1000);
btVector3 worldMax(1000,1000,1000);
m_broadphase = new btAxisSweep3(worldMin,worldMax);
if (useMCLPSolver)
{
btDantzigSolver* mlcp = new btDantzigSolver();
//btSolveProjectedGaussSeidel* mlcp = new btSolveProjectedGaussSeidel;
btMLCPSolver* sol = new btMLCPSolver(mlcp);
m_solver = sol;
} else
{
m_solver = new btSequentialImpulseConstraintSolver();
}
m_dynamicsWorld = new btDiscreteDynamicsWorld(m_dispatcher,m_broadphase,m_solver,m_collisionConfiguration);
if (useMCLPSolver)
{
m_dynamicsWorld ->getSolverInfo().m_minimumSolverBatchSize = 1;//for direct solver it is better to have a small A matrix
} else
{
m_dynamicsWorld ->getSolverInfo().m_minimumSolverBatchSize = 128;//for direct solver, it is better to solve multiple objects together, small batches have high overhead
}
m_dynamicsWorld->getSolverInfo().m_numIterations = 100;
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
//m_dynamicsWorld->setGravity(btVector3(0,0,0));
btTransform tr;
tr.setIdentity();
tr.setOrigin(btVector3(0,-3,0));
//either use heightfield or triangle mesh
//create ground object
localCreateRigidBody(0,tr,groundShape);
btCollisionShape* chassisShape = new btBoxShape(btVector3(1.f,0.5f,2.f));
m_collisionShapes.push_back(chassisShape);
btCompoundShape* compound = new btCompoundShape();
m_collisionShapes.push_back(compound);
btTransform localTrans;
localTrans.setIdentity();
//localTrans effectively shifts the center of mass with respect to the chassis
localTrans.setOrigin(btVector3(0,1,0));
compound->addChildShape(localTrans,chassisShape);
{
btCollisionShape* suppShape = new btBoxShape(btVector3(0.5f,0.1f,0.5f));
btTransform suppLocalTrans;
suppLocalTrans.setIdentity();
//localTrans effectively shifts the center of mass with respect to the chassis
suppLocalTrans.setOrigin(btVector3(0,1.0,2.5));
compound->addChildShape(suppLocalTrans, suppShape);
}
tr.setOrigin(btVector3(0,0.f,0));
btScalar chassisMass = 800;
m_carChassis = localCreateRigidBody(chassisMass,tr,compound);//chassisShape);
//m_carChassis->setDamping(0.2,0.2);
//m_wheelShape = new btCylinderShapeX(btVector3(wheelWidth,wheelRadius,wheelRadius));
m_wheelShape = new btCylinderShapeX(btVector3(wheelWidth,wheelRadius,wheelRadius));
//const float position[4]={0,10,10,0};
//const float quaternion[4]={0,0,0,1};
//const float color[4]={0,1,0,1};
//const float scaling[4] = {1,1,1,1};
btVector3 wheelPos[4] = {
btVector3(btScalar(-1.), btScalar(-0.25), btScalar(1.25)),
btVector3(btScalar(1.), btScalar(-0.25), btScalar(1.25)),
btVector3(btScalar(1.), btScalar(-0.25), btScalar(-1.25)),
btVector3(btScalar(-1.), btScalar(-0.25), btScalar(-1.25))
};
for (int i=0;i<4;i++)
{
// create a Hinge2 joint
// create two rigid bodies
// static bodyA (parent) on top:
btRigidBody* pBodyA = this->m_carChassis;//m_chassis;//createRigidBody( 0.0, tr, m_wheelShape);
pBodyA->setActivationState(DISABLE_DEACTIVATION);
// dynamic bodyB (child) below it :
btTransform tr;
tr.setIdentity();
tr.setOrigin(wheelPos[i]);
btRigidBody* pBodyB = createRigidBody(10.0, tr, m_wheelShape);
pBodyB->setFriction(1110);
pBodyB->setActivationState(DISABLE_DEACTIVATION);
// add some data to build constraint frames
btVector3 parentAxis(0.f, 1.f, 0.f);
btVector3 childAxis(1.f, 0.f, 0.f);
btVector3 anchor = tr.getOrigin();//(0.f, 0.f, 0.f);
btHinge2Constraint* pHinge2 = new btHinge2Constraint(*pBodyA, *pBodyB, anchor, parentAxis, childAxis);
//m_guiHelper->get2dCanvasInterface();
pHinge2->setLowerLimit(-SIMD_HALF_PI * 0.5f);
pHinge2->setUpperLimit( SIMD_HALF_PI * 0.5f);
// add constraint to world
m_dynamicsWorld->addConstraint(pHinge2, true);
// draw constraint frames and limits for debugging
{
int motorAxis = 3;
pHinge2->enableMotor(motorAxis,true);
pHinge2->setMaxMotorForce(motorAxis,1000);
pHinge2->setTargetVelocity(motorAxis,-1);
}
{
int motorAxis = 5;
pHinge2->enableMotor(motorAxis,true);
pHinge2->setMaxMotorForce(motorAxis,1000);
pHinge2->setTargetVelocity(motorAxis,0);
}
pHinge2->setDbgDrawSize(btScalar(5.f));
}
{
btCollisionShape* liftShape = new btBoxShape(btVector3(0.5f,2.0f,0.05f));
m_collisionShapes.push_back(liftShape);
btTransform liftTrans;
m_liftStartPos = btVector3(0.0f, 2.5f, 3.05f);
liftTrans.setIdentity();
liftTrans.setOrigin(m_liftStartPos);
m_liftBody = localCreateRigidBody(10,liftTrans, liftShape);
btTransform localA, localB;
localA.setIdentity();
localB.setIdentity();
localA.getBasis().setEulerZYX(0, M_PI_2, 0);
localA.setOrigin(btVector3(0.0, 1.0, 3.05));
localB.getBasis().setEulerZYX(0, M_PI_2, 0);
localB.setOrigin(btVector3(0.0, -1.5, -0.05));
m_liftHinge = new btHingeConstraint(*m_carChassis,*m_liftBody, localA, localB);
// m_liftHinge->setLimit(-LIFT_EPS, LIFT_EPS);
m_liftHinge->setLimit(0.0f, 0.0f);
m_dynamicsWorld->addConstraint(m_liftHinge, true);
btCollisionShape* forkShapeA = new btBoxShape(btVector3(1.0f,0.1f,0.1f));
m_collisionShapes.push_back(forkShapeA);
btCompoundShape* forkCompound = new btCompoundShape();
m_collisionShapes.push_back(forkCompound);
btTransform forkLocalTrans;
forkLocalTrans.setIdentity();
forkCompound->addChildShape(forkLocalTrans, forkShapeA);
btCollisionShape* forkShapeB = new btBoxShape(btVector3(0.1f,0.02f,0.6f));
m_collisionShapes.push_back(forkShapeB);
forkLocalTrans.setIdentity();
forkLocalTrans.setOrigin(btVector3(-0.9f, -0.08f, 0.7f));
forkCompound->addChildShape(forkLocalTrans, forkShapeB);
btCollisionShape* forkShapeC = new btBoxShape(btVector3(0.1f,0.02f,0.6f));
m_collisionShapes.push_back(forkShapeC);
forkLocalTrans.setIdentity();
forkLocalTrans.setOrigin(btVector3(0.9f, -0.08f, 0.7f));
forkCompound->addChildShape(forkLocalTrans, forkShapeC);
btTransform forkTrans;
m_forkStartPos = btVector3(0.0f, 0.6f, 3.2f);
forkTrans.setIdentity();
forkTrans.setOrigin(m_forkStartPos);
m_forkBody = localCreateRigidBody(5, forkTrans, forkCompound);
localA.setIdentity();
localB.setIdentity();
localA.getBasis().setEulerZYX(0, 0, M_PI_2);
localA.setOrigin(btVector3(0.0f, -1.9f, 0.05f));
localB.getBasis().setEulerZYX(0, 0, M_PI_2);
localB.setOrigin(btVector3(0.0, 0.0, -0.1));
m_forkSlider = new btSliderConstraint(*m_liftBody, *m_forkBody, localA, localB, true);
m_forkSlider->setLowerLinLimit(0.1f);
m_forkSlider->setUpperLinLimit(0.1f);
// m_forkSlider->setLowerAngLimit(-LIFT_EPS);
// m_forkSlider->setUpperAngLimit(LIFT_EPS);
m_forkSlider->setLowerAngLimit(0.0f);
m_forkSlider->setUpperAngLimit(0.0f);
m_dynamicsWorld->addConstraint(m_forkSlider, true);
btCompoundShape* loadCompound = new btCompoundShape();
m_collisionShapes.push_back(loadCompound);
btCollisionShape* loadShapeA = new btBoxShape(btVector3(2.0f,0.5f,0.5f));
m_collisionShapes.push_back(loadShapeA);
btTransform loadTrans;
loadTrans.setIdentity();
loadCompound->addChildShape(loadTrans, loadShapeA);
btCollisionShape* loadShapeB = new btBoxShape(btVector3(0.1f,1.0f,1.0f));
m_collisionShapes.push_back(loadShapeB);
loadTrans.setIdentity();
loadTrans.setOrigin(btVector3(2.1f, 0.0f, 0.0f));
loadCompound->addChildShape(loadTrans, loadShapeB);
btCollisionShape* loadShapeC = new btBoxShape(btVector3(0.1f,1.0f,1.0f));
m_collisionShapes.push_back(loadShapeC);
loadTrans.setIdentity();
loadTrans.setOrigin(btVector3(-2.1f, 0.0f, 0.0f));
loadCompound->addChildShape(loadTrans, loadShapeC);
loadTrans.setIdentity();
m_loadStartPos = btVector3(0.0f, 3.5f, 7.0f);
loadTrans.setOrigin(m_loadStartPos);
m_loadBody = localCreateRigidBody(loadMass, loadTrans, loadCompound);
}
resetForklift();
// setCameraDistance(26.f);
m_guiHelper->autogenerateGraphicsObjects(m_dynamicsWorld);
}
void ImportSDFSetup::initPhysics()
{
int upAxis = 2;
m_guiHelper->setUpAxis(upAxis);
this->createEmptyDynamicsWorld();
//m_dynamicsWorld->getSolverInfo().m_numIterations = 100;
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(
btIDebugDraw::DBG_DrawConstraints
+btIDebugDraw::DBG_DrawContactPoints
+btIDebugDraw::DBG_DrawAabb
);//+btIDebugDraw::DBG_DrawConstraintLimits);
btVector3 gravity(0,0,0);
gravity[upAxis]=-9.8;
m_dynamicsWorld->setGravity(gravity);
BulletURDFImporter u2b(m_guiHelper);
bool loadOk = u2b.loadSDF(m_fileName);
if (loadOk)
{
//printTree(u2b,u2b.getRootLinkIndex());
//u2b.printTree();
btTransform identityTrans;
identityTrans.setIdentity();
for (int m =0; m<u2b.getNumModels();m++)
{
u2b.activateModel(m);
btMultiBody* mb = 0;
//todo: move these internal API called inside the 'ConvertURDF2Bullet' call, hidden from the user
int rootLinkIndex = u2b.getRootLinkIndex();
b3Printf("urdf root link index = %d\n",rootLinkIndex);
MyMultiBodyCreator creation(m_guiHelper);
ConvertURDF2Bullet(u2b,creation, identityTrans,m_dynamicsWorld,m_useMultiBody,u2b.getPathPrefix());
mb = creation.getBulletMultiBody();
}
for (int i=0;i<m_dynamicsWorld->getNumMultiBodyConstraints();i++)
{
m_dynamicsWorld->getMultiBodyConstraint(i)->finalizeMultiDof();
}
bool createGround=true;
if (createGround)
{
btVector3 groundHalfExtents(20,20,20);
groundHalfExtents[upAxis]=1.f;
btBoxShape* box = new btBoxShape(groundHalfExtents);
box->initializePolyhedralFeatures();
m_guiHelper->createCollisionShapeGraphicsObject(box);
btTransform start; start.setIdentity();
btVector3 groundOrigin(0,0,0);
groundOrigin[upAxis]=-2.5;
start.setOrigin(groundOrigin);
btRigidBody* body = createRigidBody(0,start,box);
//m_dynamicsWorld->removeRigidBody(body);
// m_dynamicsWorld->addRigidBody(body,2,1);
btVector3 color(0.5,0.5,0.5);
m_guiHelper->createRigidBodyGraphicsObject(body,color);
}
///this extra stepSimulation call makes sure that all the btMultibody transforms are properly propagates.
m_dynamicsWorld->stepSimulation(1. / 240., 0);// 1., 10, 1. / 240.);
}
}
void SimpleJointExample::initPhysics()
{
m_guiHelper->setUpAxis(1);
createEmptyDynamicsWorld();
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
if (m_dynamicsWorld->getDebugDrawer())
m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe+btIDebugDraw::DBG_DrawContactPoints);
///create a few basic rigid bodies
btBoxShape* groundShape = createBoxShape(btVector3(btScalar(50.),btScalar(50.),btScalar(50.)));
m_collisionShapes.push_back(groundShape);
btTransform groundTransform;
groundTransform.setIdentity();
groundTransform.setOrigin(btVector3(0,-50,0));
{
btScalar mass(0.);
createRigidBody(mass,groundTransform,groundShape, btVector4(0,0,1,1));
}
{
//create a few dynamic rigidbodies
// Re-using the same collision is better for memory usage and performance
btBoxShape* colShape = createBoxShape(btVector3(1,1,1));
m_collisionShapes.push_back(colShape);
/// Create Dynamic Objects
btTransform startTransform;
startTransform.setIdentity();
btScalar mass(1.f);
//rigidbody is dynamic if and only if mass is non zero, otherwise static
bool isDynamic = (mass != 0.f);
btVector3 localInertia(0,0,0);
if (isDynamic)
colShape->calculateLocalInertia(mass,localInertia);
startTransform.setOrigin(btVector3(
btScalar(0),
btScalar(10),
btScalar(0)));
btRigidBody* dynamicBox = createRigidBody(mass,startTransform,colShape);
//create a static rigid body
mass = 0;
startTransform.setOrigin(btVector3(
btScalar(0),
btScalar(20),
btScalar(0)));
btRigidBody* staticBox = createRigidBody(mass,startTransform,colShape);
//create a simple p2pjoint constraint
btPoint2PointConstraint* p2p = new btPoint2PointConstraint(*dynamicBox, *staticBox, btVector3(0,3,0), btVector3(0,0,0));
p2p->m_setting.m_damping = 0.0625;
p2p->m_setting.m_impulseClamp = 0.95;
m_dynamicsWorld->addConstraint(p2p);
}
m_guiHelper->autogenerateGraphicsObjects(m_dynamicsWorld);
}
btCollisionObject* btBulletWorldImporter::createCollisionObject(const btTransform& startTransform,btCollisionShape* shape, const char* bodyName)
{
return createRigidBody(false,0,startTransform,shape,bodyName);
}
void RigidBodyFromObjExample::initPhysics()
{
m_guiHelper->setUpAxis(1);
createEmptyDynamicsWorld();
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
//if (m_dynamicsWorld->getDebugDrawer())
// m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe+btIDebugDraw::DBG_DrawContactPoints);
///create a few basic rigid bodies
btBoxShape* groundShape = createBoxShape(btVector3(btScalar(50.),btScalar(50.),btScalar(50.)));
m_collisionShapes.push_back(groundShape);
btTransform groundTransform;
groundTransform.setIdentity();
groundTransform.setOrigin(btVector3(0,-50,0));
{
btScalar mass(0.);
createRigidBody(mass,groundTransform,groundShape, btVector4(0,0,1,1));
}
//load our obj mesh
const char* fileName = "teddy.obj";//sphere8.obj";//sponza_closed.obj";//sphere8.obj";
char relativeFileName[1024];
if (b3ResourcePath::findResourcePath(fileName, relativeFileName, 1024))
{
char pathPrefix[1024];
b3FileUtils::extractPath(relativeFileName, pathPrefix, 1024);
}
GLInstanceGraphicsShape* glmesh = LoadMeshFromObj(relativeFileName, "");
printf("[INFO] Obj loaded: Extracted %d verticed from obj file [%s]\n", glmesh->m_numvertices, fileName);
const GLInstanceVertex& v = glmesh->m_vertices->at(0);
btConvexHullShape* shape = new btConvexHullShape((const btScalar*)(&(v.xyzw[0])), glmesh->m_numvertices, sizeof(GLInstanceVertex));
float scaling[4] = {0.1,0.1,0.1,1};
btVector3 localScaling(scaling[0],scaling[1],scaling[2]);
shape->setLocalScaling(localScaling);
if (m_options & OptimizeConvexObj)
{
shape->optimizeConvexHull();
}
if (m_options & ComputePolyhedralFeatures)
{
shape->initializePolyhedralFeatures();
}
//shape->setMargin(0.001);
m_collisionShapes.push_back(shape);
btTransform startTransform;
startTransform.setIdentity();
btScalar mass(1.f);
bool isDynamic = (mass != 0.f);
btVector3 localInertia(0,0,0);
if (isDynamic)
shape->calculateLocalInertia(mass,localInertia);
float color[4] = {1,1,1,1};
float orn[4] = {0,0,0,1};
float pos[4] = {0,3,0,0};
btVector3 position(pos[0],pos[1],pos[2]);
startTransform.setOrigin(position);
btRigidBody* body = createRigidBody(mass,startTransform,shape);
bool useConvexHullForRendering = ((m_options & ObjUseConvexHullForRendering)!=0);
if (!useConvexHullForRendering)
{
int shapeId = m_guiHelper->registerGraphicsShape(&glmesh->m_vertices->at(0).xyzw[0],
glmesh->m_numvertices,
&glmesh->m_indices->at(0),
glmesh->m_numIndices,
B3_GL_TRIANGLES, -1);
shape->setUserIndex(shapeId);
int renderInstance = m_guiHelper->registerGraphicsInstance(shapeId,pos,orn,color,scaling);
body->setUserIndex(renderInstance);
}
m_guiHelper->autogenerateGraphicsObjects(m_dynamicsWorld);
}
bool btBulletWorldImporter::convertAllObjects( bParse::btBulletFile* bulletFile2)
{
int i;
for (i=0;i<bulletFile2->m_bvhs.size();i++)
{
btOptimizedBvh* bvh = createOptimizedBvh();
if (bulletFile2->getFlags() & bParse::FD_DOUBLE_PRECISION)
{
btQuantizedBvhDoubleData* bvhData = (btQuantizedBvhDoubleData*)bulletFile2->m_bvhs[i];
bvh->deSerializeDouble(*bvhData);
} else
{
btQuantizedBvhFloatData* bvhData = (btQuantizedBvhFloatData*)bulletFile2->m_bvhs[i];
bvh->deSerializeFloat(*bvhData);
}
m_bvhMap.insert(bulletFile2->m_bvhs[i],bvh);
}
btHashMap<btHashPtr,btCollisionShape*> shapeMap;
for (i=0;i<bulletFile2->m_collisionShapes.size();i++)
{
btCollisionShapeData* shapeData = (btCollisionShapeData*)bulletFile2->m_collisionShapes[i];
btCollisionShape* shape = convertCollisionShape(shapeData);
if (shape)
{
// printf("shapeMap.insert(%x,%x)\n",shapeData,shape);
shapeMap.insert(shapeData,shape);
}
if (shape&& shapeData->m_name)
{
char* newname = duplicateName(shapeData->m_name);
m_objectNameMap.insert(shape,newname);
m_nameShapeMap.insert(newname,shape);
}
}
btHashMap<btHashPtr,btCollisionObject*> bodyMap;
for (i=0;i<bulletFile2->m_rigidBodies.size();i++)
{
if (bulletFile2->getFlags() & bParse::FD_DOUBLE_PRECISION)
{
btRigidBodyDoubleData* colObjData = (btRigidBodyDoubleData*)bulletFile2->m_rigidBodies[i];
btScalar mass = btScalar(colObjData->m_inverseMass? 1.f/colObjData->m_inverseMass : 0.f);
btVector3 localInertia;
localInertia.setZero();
btCollisionShape** shapePtr = shapeMap.find(colObjData->m_collisionObjectData.m_collisionShape);
if (shapePtr && *shapePtr)
{
btTransform startTransform;
startTransform.deSerializeDouble(colObjData->m_collisionObjectData.m_worldTransform);
// startTransform.setBasis(btMatrix3x3::getIdentity());
btCollisionShape* shape = (btCollisionShape*)*shapePtr;
if (shape->isNonMoving())
{
mass = 0.f;
}
if (mass)
{
shape->calculateLocalInertia(mass,localInertia);
}
bool isDynamic = mass!=0.f;
btRigidBody* body = createRigidBody(isDynamic,mass,startTransform,shape,colObjData->m_collisionObjectData.m_name);
#ifdef USE_INTERNAL_EDGE_UTILITY
if (shape->getShapeType() == TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
btBvhTriangleMeshShape* trimesh = (btBvhTriangleMeshShape*)shape;
if (trimesh->getTriangleInfoMap())
{
body->setCollisionFlags(body->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK);
}
}
#endif //USE_INTERNAL_EDGE_UTILITY
bodyMap.insert(colObjData,body);
} else
{
printf("error: no shape found\n");
}
} else
{
btRigidBodyFloatData* colObjData = (btRigidBodyFloatData*)bulletFile2->m_rigidBodies[i];
btScalar mass = btScalar(colObjData->m_inverseMass? 1.f/colObjData->m_inverseMass : 0.f);
btVector3 localInertia;
localInertia.setZero();
btCollisionShape** shapePtr = shapeMap.find(colObjData->m_collisionObjectData.m_collisionShape);
if (shapePtr && *shapePtr)
{
btTransform startTransform;
startTransform.deSerializeFloat(colObjData->m_collisionObjectData.m_worldTransform);
// startTransform.setBasis(btMatrix3x3::getIdentity());
btCollisionShape* shape = (btCollisionShape*)*shapePtr;
if (shape->isNonMoving())
{
mass = 0.f;
}
if (mass)
{
shape->calculateLocalInertia(mass,localInertia);
}
bool isDynamic = mass!=0.f;
btRigidBody* body = createRigidBody(isDynamic,mass,startTransform,shape,colObjData->m_collisionObjectData.m_name);
#ifdef USE_INTERNAL_EDGE_UTILITY
if (shape->getShapeType() == TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
btBvhTriangleMeshShape* trimesh = (btBvhTriangleMeshShape*)shape;
if (trimesh->getTriangleInfoMap())
{
body->setCollisionFlags(body->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK);
}
}
#endif //USE_INTERNAL_EDGE_UTILITY
bodyMap.insert(colObjData,body);
} else
{
printf("error: no shape found\n");
}
}
}
for (i=0;i<bulletFile2->m_collisionObjects.size();i++)
{
if (bulletFile2->getFlags() & bParse::FD_DOUBLE_PRECISION)
{
btCollisionObjectDoubleData* colObjData = (btCollisionObjectDoubleData*)bulletFile2->m_collisionObjects[i];
btCollisionShape** shapePtr = shapeMap.find(colObjData->m_collisionShape);
if (shapePtr && *shapePtr)
{
btTransform startTransform;
startTransform.deSerializeDouble(colObjData->m_worldTransform);
btCollisionShape* shape = (btCollisionShape*)*shapePtr;
btCollisionObject* body = createCollisionObject(startTransform,shape,colObjData->m_name);
#ifdef USE_INTERNAL_EDGE_UTILITY
if (shape->getShapeType() == TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
btBvhTriangleMeshShape* trimesh = (btBvhTriangleMeshShape*)shape;
if (trimesh->getTriangleInfoMap())
{
body->setCollisionFlags(body->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK);
}
}
#endif //USE_INTERNAL_EDGE_UTILITY
bodyMap.insert(colObjData,body);
} else
{
printf("error: no shape found\n");
}
} else
{
btCollisionObjectFloatData* colObjData = (btCollisionObjectFloatData*)bulletFile2->m_collisionObjects[i];
btCollisionShape** shapePtr = shapeMap.find(colObjData->m_collisionShape);
if (shapePtr && *shapePtr)
{
btTransform startTransform;
startTransform.deSerializeFloat(colObjData->m_worldTransform);
btCollisionShape* shape = (btCollisionShape*)*shapePtr;
btCollisionObject* body = createCollisionObject(startTransform,shape,colObjData->m_name);
#ifdef USE_INTERNAL_EDGE_UTILITY
if (shape->getShapeType() == TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
btBvhTriangleMeshShape* trimesh = (btBvhTriangleMeshShape*)shape;
if (trimesh->getTriangleInfoMap())
{
body->setCollisionFlags(body->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK);
}
}
#endif //USE_INTERNAL_EDGE_UTILITY
bodyMap.insert(colObjData,body);
} else
{
printf("error: no shape found\n");
}
}
printf("bla");
}
for (i=0;i<bulletFile2->m_constraints.size();i++)
{
btTypedConstraintData* constraintData = (btTypedConstraintData*)bulletFile2->m_constraints[i];
btCollisionObject** colAptr = bodyMap.find(constraintData->m_rbA);
btCollisionObject** colBptr = bodyMap.find(constraintData->m_rbB);
btRigidBody* rbA = 0;
btRigidBody* rbB = 0;
if (colAptr)
{
rbA = btRigidBody::upcast(*colAptr);
if (!rbA)
rbA = &getFixedBody();
}
if (colBptr)
{
rbB = btRigidBody::upcast(*colBptr);
if (!rbB)
rbB = &getFixedBody();
}
btTypedConstraint* constraint = 0;
switch (constraintData->m_objectType)
{
case POINT2POINT_CONSTRAINT_TYPE:
{
if (bulletFile2->getFlags() & bParse::FD_DOUBLE_PRECISION)
{
btPoint2PointConstraintDoubleData* p2pData = (btPoint2PointConstraintDoubleData*)constraintData;
if (rbA && rbB)
{
btVector3 pivotInA,pivotInB;
pivotInA.deSerializeDouble(p2pData->m_pivotInA);
pivotInB.deSerializeDouble(p2pData->m_pivotInB);
constraint = createPoint2PointConstraint(*rbA,*rbB,pivotInA,pivotInB);
} else
{
btVector3 pivotInA;
pivotInA.deSerializeDouble(p2pData->m_pivotInA);
constraint = createPoint2PointConstraint(*rbA,pivotInA);
}
} else
{
btPoint2PointConstraintFloatData* p2pData = (btPoint2PointConstraintFloatData*)constraintData;
if (rbA&& rbB)
{
btVector3 pivotInA,pivotInB;
pivotInA.deSerializeFloat(p2pData->m_pivotInA);
pivotInB.deSerializeFloat(p2pData->m_pivotInB);
constraint = createPoint2PointConstraint(*rbA,*rbB,pivotInA,pivotInB);
} else
{
btVector3 pivotInA;
pivotInA.deSerializeFloat(p2pData->m_pivotInA);
constraint = createPoint2PointConstraint(*rbA,pivotInA);
}
}
break;
}
case HINGE_CONSTRAINT_TYPE:
{
btHingeConstraint* hinge = 0;
if (bulletFile2->getFlags() & bParse::FD_DOUBLE_PRECISION)
{
btHingeConstraintDoubleData* hingeData = (btHingeConstraintDoubleData*)constraintData;
if (rbA&& rbB)
{
btTransform rbAFrame,rbBFrame;
rbAFrame.deSerializeDouble(hingeData->m_rbAFrame);
rbBFrame.deSerializeDouble(hingeData->m_rbBFrame);
hinge = createHingeConstraint(*rbA,*rbB,rbAFrame,rbBFrame,hingeData->m_useReferenceFrameA!=0);
} else
{
btTransform rbAFrame;
rbAFrame.deSerializeDouble(hingeData->m_rbAFrame);
hinge = createHingeConstraint(*rbA,rbAFrame,hingeData->m_useReferenceFrameA!=0);
}
if (hingeData->m_enableAngularMotor)
{
hinge->enableAngularMotor(true,hingeData->m_motorTargetVelocity,hingeData->m_maxMotorImpulse);
}
hinge->setAngularOnly(hingeData->m_angularOnly!=0);
hinge->setLimit(btScalar(hingeData->m_lowerLimit),btScalar(hingeData->m_upperLimit),btScalar(hingeData->m_limitSoftness),btScalar(hingeData->m_biasFactor),btScalar(hingeData->m_relaxationFactor));
} else
{
btHingeConstraintFloatData* hingeData = (btHingeConstraintFloatData*)constraintData;
if (rbA&& rbB)
{
btTransform rbAFrame,rbBFrame;
rbAFrame.deSerializeFloat(hingeData->m_rbAFrame);
rbBFrame.deSerializeFloat(hingeData->m_rbBFrame);
hinge = createHingeConstraint(*rbA,*rbB,rbAFrame,rbBFrame,hingeData->m_useReferenceFrameA!=0);
} else
{
btTransform rbAFrame;
rbAFrame.deSerializeFloat(hingeData->m_rbAFrame);
hinge = createHingeConstraint(*rbA,rbAFrame,hingeData->m_useReferenceFrameA!=0);
}
if (hingeData->m_enableAngularMotor)
{
hinge->enableAngularMotor(true,hingeData->m_motorTargetVelocity,hingeData->m_maxMotorImpulse);
}
hinge->setAngularOnly(hingeData->m_angularOnly!=0);
hinge->setLimit(btScalar(hingeData->m_lowerLimit),btScalar(hingeData->m_upperLimit),btScalar(hingeData->m_limitSoftness),btScalar(hingeData->m_biasFactor),btScalar(hingeData->m_relaxationFactor));
}
constraint = hinge;
break;
}
case CONETWIST_CONSTRAINT_TYPE:
{
btConeTwistConstraintData* coneData = (btConeTwistConstraintData*)constraintData;
btConeTwistConstraint* coneTwist = 0;
if (rbA&& rbB)
{
btTransform rbAFrame,rbBFrame;
rbAFrame.deSerializeFloat(coneData->m_rbAFrame);
rbBFrame.deSerializeFloat(coneData->m_rbBFrame);
coneTwist = createConeTwistConstraint(*rbA,*rbB,rbAFrame,rbBFrame);
} else
{
btTransform rbAFrame;
rbAFrame.deSerializeFloat(coneData->m_rbAFrame);
coneTwist = createConeTwistConstraint(*rbA,rbAFrame);
}
coneTwist->setLimit(coneData->m_swingSpan1,coneData->m_swingSpan2,coneData->m_twistSpan,coneData->m_limitSoftness,coneData->m_biasFactor,coneData->m_relaxationFactor);
coneTwist->setDamping(coneData->m_damping);
constraint = coneTwist;
break;
}
case D6_CONSTRAINT_TYPE:
{
btGeneric6DofConstraintData* dofData = (btGeneric6DofConstraintData*)constraintData;
btGeneric6DofConstraint* dof = 0;
if (rbA&& rbB)
{
btTransform rbAFrame,rbBFrame;
rbAFrame.deSerializeFloat(dofData->m_rbAFrame);
rbBFrame.deSerializeFloat(dofData->m_rbBFrame);
dof = createGeneric6DofConstraint(*rbA,*rbB,rbAFrame,rbBFrame,dofData->m_useLinearReferenceFrameA!=0);
} else
{
if (rbB)
{
btTransform rbBFrame;
rbBFrame.deSerializeFloat(dofData->m_rbBFrame);
dof = createGeneric6DofConstraint(*rbB,rbBFrame,dofData->m_useLinearReferenceFrameA!=0);
} else
{
printf("Error in btWorldImporter::createGeneric6DofConstraint: missing rbB\n");
}
}
if (dof)
{
btVector3 angLowerLimit,angUpperLimit, linLowerLimit,linUpperlimit;
angLowerLimit.deSerializeFloat(dofData->m_angularLowerLimit);
angUpperLimit.deSerializeFloat(dofData->m_angularUpperLimit);
linLowerLimit.deSerializeFloat(dofData->m_linearLowerLimit);
linUpperlimit.deSerializeFloat(dofData->m_linearUpperLimit);
dof->setAngularLowerLimit(angLowerLimit);
dof->setAngularUpperLimit(angUpperLimit);
dof->setLinearLowerLimit(linLowerLimit);
dof->setLinearUpperLimit(linUpperlimit);
}
constraint = dof;
break;
}
case SLIDER_CONSTRAINT_TYPE:
{
btSliderConstraintData* sliderData = (btSliderConstraintData*)constraintData;
btSliderConstraint* slider = 0;
if (rbA&& rbB)
{
btTransform rbAFrame,rbBFrame;
rbAFrame.deSerializeFloat(sliderData->m_rbAFrame);
rbBFrame.deSerializeFloat(sliderData->m_rbBFrame);
slider = createSliderConstraint(*rbA,*rbB,rbAFrame,rbBFrame,sliderData->m_useLinearReferenceFrameA!=0);
} else
{
btTransform rbBFrame;
rbBFrame.deSerializeFloat(sliderData->m_rbBFrame);
slider = createSliderConstraint(*rbB,rbBFrame,sliderData->m_useLinearReferenceFrameA!=0);
}
slider->setLowerLinLimit(sliderData->m_linearLowerLimit);
slider->setUpperLinLimit(sliderData->m_linearUpperLimit);
slider->setLowerAngLimit(sliderData->m_angularLowerLimit);
slider->setUpperAngLimit(sliderData->m_angularUpperLimit);
slider->setUseFrameOffset(sliderData->m_useOffsetForConstraintFrame!=0);
constraint = slider;
break;
}
default:
{
printf("unknown constraint type\n");
}
};
if (constraint)
{
constraint->setDbgDrawSize(constraintData->m_dbgDrawSize);
if (constraintData->m_name)
{
char* newname = duplicateName(constraintData->m_name);
m_nameConstraintMap.insert(newname,constraint);
m_objectNameMap.insert(constraint,newname);
}
if(m_dynamicsWorld)
m_dynamicsWorld->addConstraint(constraint,constraintData->m_disableCollisionsBetweenLinkedBodies!=0);
}
}
return true;
}
