PhysicsBodyUnrecPtr buildBox(const Pnt3f& Position, const Vec3f& Dimensions, const Color3f& Color, Node* const spaceGroupNode, PhysicsWorld* const physicsWorld, PhysicsHashSpace* const physicsSpace) { Matrix m; //create OpenSG mesh GeometryUnrecPtr box; NodeUnrecPtr boxNode = makeBox(Dimensions.x(), Dimensions.y(), Dimensions.z(), 1, 1, 1); box = dynamic_cast<Geometry*>(boxNode->getCore()); SimpleMaterialUnrecPtr box_mat = SimpleMaterial::create(); box_mat->setAmbient(Color3f(0.0,0.0,0.0)); box_mat->setDiffuse(Color); box->setMaterial(box_mat); TransformUnrecPtr boxTrans; NodeUnrecPtr boxTransNode = makeCoredNode<Transform>(&boxTrans); m.setIdentity(); m.setTranslate(Position); boxTrans->setMatrix(m); //create ODE data PhysicsBodyUnrecPtr boxBody = PhysicsBody::create(physicsWorld); boxBody->setPosition(Vec3f(Position)); boxBody->setBoxMass(1.0,Dimensions.x(), Dimensions.y(), Dimensions.z()); boxBody->setLinearDamping(0.0001); boxBody->setAngularDamping(0.0001); PhysicsBoxGeomUnrecPtr boxGeom = PhysicsBoxGeom::create(); boxGeom->setBody(boxBody); boxGeom->setSpace(physicsSpace); boxGeom->setLengths(Dimensions); //add attachments boxNode->addAttachment(boxGeom); boxTransNode->addAttachment(boxBody); boxTransNode->addChild(boxNode); //add to SceneGraph spaceGroupNode->addChild(boxTransNode); return boxBody; }
////////////////////////////////////////////////////////////////////////// //! build a box ////////////////////////////////////////////////////////////////////////// PhysicsBodyUnrecPtr buildBox(void) { Vec3f Lengths((Real32)(rand()%2)+1.0, (Real32)(rand()%2)+1.0, (Real32)(rand()%2)+1.0); Matrix m; //create OpenSG mesh GeometryUnrecPtr box; NodeUnrecPtr boxNode = makeBox(Lengths.x(), Lengths.y(), Lengths.z(), 1, 1, 1); box = dynamic_cast<Geometry*>(boxNode->getCore()); SimpleMaterialUnrecPtr box_mat = SimpleMaterial::create(); box_mat->setAmbient(Color3f(0.0,0.0,0.0)); box_mat->setDiffuse(Color3f(0.0,1.0 ,0.0)); box->setMaterial(box_mat); TransformUnrecPtr boxTrans; NodeUnrecPtr boxTransNode = makeCoredNode<Transform>(&boxTrans); m.setIdentity(); Real32 randX = (Real32)(rand()%10)-5.0; Real32 randY = (Real32)(rand()%10)-5.0; m.setTranslate(randX, randY, 10.0); boxTrans->setMatrix(m); //create ODE data PhysicsBodyUnrecPtr boxBody = PhysicsBody::create(physicsWorld); boxBody->setPosition(Vec3f(randX, randY, 10.0)); boxBody->setBoxMass(1.0, Lengths.x(), Lengths.y(), Lengths.z()); PhysicsBoxGeomUnrecPtr boxGeom = PhysicsBoxGeom::create(); boxGeom->setBody(boxBody); boxGeom->setSpace(physicsSpace); boxGeom->setLengths(Lengths); //add attachments boxNode->addAttachment(boxGeom); boxTransNode->addAttachment(boxBody); boxTransNode->addChild(boxNode); //add to SceneGraph spaceGroupNode->addChild(boxTransNode); commitChanges(); return boxBody; }
// Initialize GLUT & OpenSG and set up the rootNode int main(int argc, char **argv) { // OSG init osgInit(argc,argv); // Set up Window TutorialWindow = createNativeWindow(); TutorialWindow->initWindow(); TutorialWindow->setDisplayCallback(display); TutorialWindow->setReshapeCallback(reshape); TutorialKeyListener TheKeyListener; TutorialWindow->addKeyListener(&TheKeyListener); TutorialMouseListener TheTutorialMouseListener; TutorialMouseMotionListener TheTutorialMouseMotionListener; TutorialWindow->addMouseListener(&TheTutorialMouseListener); TutorialWindow->addMouseMotionListener(&TheTutorialMouseMotionListener); // Create the SimpleSceneManager helper mgr = new SimpleSceneManager; // Tell the Manager what to manage mgr->setWindow(TutorialWindow); //Make Torus Node NodeUnrecPtr TorusNode = makeTorus(.5, 2, 32, 32); //Make Main Scene Node NodeUnrecPtr scene = makeCoredNode<Group>(); setName(scene, "scene"); rootNode = Node::create(); setName(rootNode, "rootNode"); ComponentTransformUnrecPtr Trans; Trans = ComponentTransform::create(); rootNode->setCore(Trans); // add the torus as a child rootNode->addChild(scene); //Setup Physics Scene physicsWorld = PhysicsWorld::create(); physicsWorld->setWorldContactSurfaceLayer(0.005); physicsWorld->setAutoDisableFlag(1); physicsWorld->setAutoDisableTime(0.75); physicsWorld->setWorldContactMaxCorrectingVel(100.0); physicsWorld->setGravity(Vec3f(0.0, 0.0, -9.81)); //physicsSpace = PhysicsSimpleSpace::create(); //physicsSpace = PhysicsQuadTreeSpace::create(); //physicsSpace = PhysicsHashSpace::create(); physicsSpace = PhysicsSweepAndPruneSpace::create(); CollisionContactParametersUnrecPtr DefaultCollisionParams = CollisionContactParameters::createEmpty(); DefaultCollisionParams->setMode(dContactApprox1 | dContactBounce); DefaultCollisionParams->setMu(0.3); DefaultCollisionParams->setMu2(0.0); DefaultCollisionParams->setBounce(0.2); DefaultCollisionParams->setBounceSpeedThreshold(0.1); DefaultCollisionParams->setSoftCFM(0.1); DefaultCollisionParams->setSoftERP(0.2); DefaultCollisionParams->setMotion1(0.0); DefaultCollisionParams->setMotion2(0.0); DefaultCollisionParams->setMotionN(0.0); DefaultCollisionParams->setSlip1(0.0); DefaultCollisionParams->setSlip2(0.0); physicsSpace->setDefaultCollisionParameters(DefaultCollisionParams); physHandler = PhysicsHandler::create(); physHandler->setWorld(physicsWorld); physHandler->pushToSpaces(physicsSpace); physHandler->setUpdateNode(rootNode); physHandler->attachUpdateProducer(TutorialWindow->editEventProducer()); rootNode->addAttachment(physHandler); rootNode->addAttachment(physicsWorld); rootNode->addAttachment(physicsSpace); /************************************************************************/ /* create spaces, geoms and bodys */ /************************************************************************/ //create a group for our space GroupUnrecPtr spaceGroup; spaceGroupNode = makeCoredNode<Group>(&spaceGroup); //create the ground plane GeometryUnrecPtr plane; NodeUnrecPtr planeNode = makeBox(30.0, 30.0, 1.0, 1, 1, 1); plane = dynamic_cast<Geometry*>(planeNode->getCore()); //and its Material SimpleMaterialUnrecPtr plane_mat = SimpleMaterial::create(); plane_mat->setAmbient(Color3f(0.7,0.7,0.7)); plane_mat->setDiffuse(Color3f(0.9,0.6,1.0)); plane->setMaterial(plane_mat); //create Physical Attachments PhysicsBoxGeomUnrecPtr planeGeom = PhysicsBoxGeom::create(); planeGeom->setLengths(Vec3f(30.0, 30.0, 1.0)); //add geoms to space for collision planeGeom->setSpace(physicsSpace); //add Attachments to nodes... spaceGroupNode->addAttachment(physicsSpace); spaceGroupNode->addChild(planeNode); planeNode->addAttachment(planeGeom); scene->addChild(spaceGroupNode); //Create Statistics Foreground SimpleStatisticsForegroundUnrecPtr PhysicsStatForeground = SimpleStatisticsForeground::create(); PhysicsStatForeground->setSize(25); PhysicsStatForeground->setColor(Color4f(0,1,0,0.7)); PhysicsStatForeground->addElement(PhysicsHandler::statPhysicsTime, "Physics time: %.3f s"); PhysicsStatForeground->addElement(PhysicsHandler::statCollisionTime, "Collision time: %.3f s"); PhysicsStatForeground->addElement(PhysicsHandler::statSimulationTime, "Simulation time: %.3f s"); PhysicsStatForeground->addElement(PhysicsHandler::statNCollisions, "%d collisions"); PhysicsStatForeground->addElement(PhysicsHandler::statNCollisionTests, "%d collision tests"); PhysicsStatForeground->addElement(PhysicsHandler::statNPhysicsSteps, "%d simulation steps per frame"); // tell the manager what to manage mgr->setRoot (rootNode); mgr->getWindow()->getPort(0)->addForeground(PhysicsStatForeground); physHandler->setStatistics(PhysicsStatForeground->getCollector()); // show the whole rootNode mgr->showAll(); Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f); Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5); TutorialWindow->openWindow(WinPos, WinSize, "05Explosion"); //Enter main Loop TutorialWindow->mainLoop(); osgExit(); return 0; }