public bool OnBulletCreate() { if( rigidBodyObj != null ) // have created! { return true; } if( CollisionShapeObject == null ) // if user not give a collision, search it on itself first! CollisionShapeObject = GetComponent<BCollisionShape>(); if( CollisionShapeObject == null ) { Debug.LogError("Bullet RigidBody need a collision shape!"); return false; } bool cResult = CollisionShapeObject.OnBulletCreate(); if( cResult == false ) { Debug.LogError("Collision Shape Create Error!"); return false; } btTransform trans = new btTransform(); trans.setIdentity(); btVector3 pos = new btVector3(transform.position.x,transform.position.y,transform.position.z); trans.setOrigin(pos); trans.setRotation(new btQuaternion(transform.rotation.x,transform.rotation.y,transform.rotation.z,transform.rotation.w)); //rigidbody is dynamic if and only if mass is non zero, otherwise static bool isDynamic = (Mass != 0.0f); btVector3 localInertia = new btVector3(0,0,0); if (isDynamic) { CollisionShapeObject.CalculateLocalInertia(Mass,localInertia); } //using motionstate is recommended, it provides interpolation capabilities, and only synchronizes 'active' objects myMotionState = new btDefaultMotionState(trans); rbInfo = new btRigidBodyConstructionInfo(Mass,myMotionState.GetSwigPtr(),CollisionShapeObject.GetCollisionShapePtr(),localInertia.GetSwigPtr()); rigidBodyObj = new btRigidBody(rbInfo); collisionObject = btCollisionObject.GetObjectFromSwigPtr(rigidBodyObj.GetCollisionObject()); collisionObject.setFriction(Friction); return true; }
///setupRigidBody is only used internally by the constructor public void setupRigidBody( btRigidBodyConstructionInfo constructionInfo ) { m_internalType = CollisionObjectTypes.CO_RIGID_BODY; m_linearVelocity = btVector3.Zero; m_angularVelocity = btVector3.Zero; m_angularFactor = btVector3.One; m_linearFactor = btVector3.One; m_gravity = btVector3.Zero; m_gravity_acceleration = btVector3.Zero; m_totalForce = btVector3.Zero; m_totalTorque = btVector3.Zero; setDamping( constructionInfo.m_linearDamping, constructionInfo.m_angularDamping ); m_linearSleepingThreshold = constructionInfo.m_linearSleepingThreshold; m_angularSleepingThreshold = constructionInfo.m_angularSleepingThreshold; m_optionalMotionState = constructionInfo.m_motionState; //m_contactSolverType = 0; //m_frictionSolverType = 0; m_additionalDamping = constructionInfo.m_additionalDamping; m_additionalDampingFactor = constructionInfo.m_additionalDampingFactor; m_additionalLinearDampingThresholdSqr = constructionInfo.m_additionalLinearDampingThresholdSqr; m_additionalAngularDampingThresholdSqr = constructionInfo.m_additionalAngularDampingThresholdSqr; m_additionalAngularDampingFactor = constructionInfo.m_additionalAngularDampingFactor; if( m_optionalMotionState != null ) { m_optionalMotionState.getWorldTransform( out m_worldTransform ); } else { m_worldTransform = constructionInfo.m_startWorldTransform; } m_interpolationWorldTransform = m_worldTransform; m_interpolationLinearVelocity.setValue( 0, 0, 0 ); m_interpolationAngularVelocity.setValue( 0, 0, 0 ); //moved to btCollisionObject m_friction = constructionInfo.m_friction; m_rollingFriction = constructionInfo.m_rollingFriction; m_restitution = constructionInfo.m_restitution; setCollisionShape( constructionInfo.m_collisionShape ); m_debugBodyId = uniqueId++; setMassProps( constructionInfo.m_mass, ref constructionInfo.m_localInertia ); updateInertiaTensor(); m_rigidbodyFlags = btRigidBodyFlags.BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_BODY; m_deltaLinearVelocity.setZero(); m_deltaAngularVelocity.setZero(); m_linearFactor.Mult( m_inverseMass, out m_invMass ); //m_invMass = m_inverseMass * m_linearFactor; m_pushVelocity.setZero(); m_turnVelocity.setZero(); }
///btRigidBody constructor for backwards compatibility. ///To specify friction (etc) during rigid body construction, please use the other constructor (using btRigidBodyConstructionInfo) // btRigidBody( double mass, btMotionState* motionState, btCollisionShape* collisionShape, ref btVector3 localInertia = btVector3.Zero ); // cannot give default to ref parameter public btRigidBody( double mass, btMotionState motionState, btCollisionShape collisionShape, ref btVector3 localInertia ) { btRigidBodyConstructionInfo cinfo = new btRigidBodyConstructionInfo( mass, motionState, collisionShape, ref localInertia ); setupRigidBody( cinfo ); }
public btRigidBody( btRigidBodyConstructionInfo constructionInfo ) { setupRigidBody( constructionInfo ); }
static void Main(string[] args) { btVector3 testvec = new btVector3(-2, 1, 0); Console.WriteLine(String.Format("Original: {0}", testvec.testStr())); btVector3 testvec2 = testvec.absolute(); Console.WriteLine(String.Format("absolute: {0}", testvec2.testStr())); Console.WriteLine(String.Format("angle:{0}", testvec.angle(testvec2))); Console.WriteLine(String.Format("closestAxis(orig):{0}", testvec.closestAxis())); btVector3 testvec3 = testvec.cross(testvec2); Console.WriteLine(String.Format("cross: {0}", testvec3.testStr())); Console.WriteLine(String.Format("distance: {0}", testvec.distance(testvec2))); Console.WriteLine(String.Format("distance2: {0}", testvec.distance2(testvec2))); Console.WriteLine(String.Format("dot: {0}", testvec.dot(testvec2))); Console.WriteLine(String.Format("furthestAxis(orig): {0}", testvec.furthestAxis())); btVector3 testvec4 = testvec.normalized(); Console.WriteLine(String.Format("normalized: {0}", testvec4.testStr())); testvec4.setInterpolate3(testvec, testvec2, 0.5f); Console.WriteLine(String.Format("interpolate3: {0}", testvec4.testStr())); testvec4.setValue(7f, -0.09f, 2.5f); Console.WriteLine(String.Format("setvec: {0}", testvec4.testStr())); testvec4.setX(5.0f); testvec4.setY(-0.25f); testvec4.setZ(90f); testvec.setValue(0, 0, -1024); testvec2.setValue(256, 256, 1024); Console.WriteLine(String.Format("setvecIndividual: {0}", testvec4.testStr())); btAxisSweep3 testbtAxisSweep3 = new btAxisSweep3(testvec, testvec2, 50); btDefaultCollisionConfiguration colconfig = new btDefaultCollisionConfiguration(); btCollisionDispatcher coldisp = new btCollisionDispatcher(colconfig); btSequentialImpulseConstraintSolver seqimpconssol = new btSequentialImpulseConstraintSolver(); btDiscreteDynamicsWorld dynamicsWorld = new btDiscreteDynamicsWorld(coldisp, testbtAxisSweep3, seqimpconssol, colconfig); dynamicsWorld.setGravity(new btVector3(0, 0, -9.87f)); Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60)))); Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60)))); Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60)))); Console.WriteLine(String.Format("stepWorld: {0}", dynamicsWorld.stepSimulation((6f / 60), 5, (1f / 60)))); btQuaternion testquat = new btQuaternion(50, 0, 0, 1); btQuaternion testquatnorm = testquat.normalized(); Console.WriteLine(String.Format("testquat: {0}", testquat.testStr())); Console.WriteLine(String.Format("testquatnormalize: {0}", testquatnorm.testStr())); Console.WriteLine(String.Format("testquatLength: {0}", testquat.length())); Console.WriteLine(String.Format("testquatnormalizeLength: {0}", testquatnorm.length())); float[] heightdata = new float[256 * 256]; for (int j = 0; j < 256 * 256; j++) { if (j % 2 == 0) { heightdata[j] = 21f; } else { heightdata[j] = 28f; } } btHeightfieldTerrainShape obj = new btHeightfieldTerrainShape(256, 256, heightdata, 1.0f, 0, 256, (int)btHeightfieldTerrainShape.UPAxis.Z, (int)btHeightfieldTerrainShape.PHY_ScalarType. PHY_FLOAT, false); btCapsuleShape cap = new btCapsuleShape(0.23f, 3); btTriangleMesh testMesh = new btTriangleMesh(true, false); testMesh.addTriangle(new btVector3(1, 0, 1), new btVector3(1, 0, -1), new btVector3(-1, 0, -1), false); testMesh.addTriangle(new btVector3(1, -1, 1), new btVector3(1, -1, -1), new btVector3(-1, -1, -1), false); testMesh.addTriangle(new btVector3(1, -1, 1), new btVector3(1, 0, 1), new btVector3(-1, -1, -1), false); testMesh.addTriangle(new btVector3(1, 0, 1), new btVector3(1, -1, -1), new btVector3(-1, 0, -1), false); testMesh.addTriangle(new btVector3(1, -1, -1), new btVector3(-1, 0, -1), new btVector3(-1, -1, -1), false); testMesh.addTriangle(new btVector3(1, -1, -1), new btVector3(1, 0, -1), new btVector3(-1, 0, -1), false); testMesh.addTriangle(new btVector3(1, 0, 1), new btVector3(1, -1, -1), new btVector3(1, 0, -1), false); testMesh.addTriangle(new btVector3(1, -1, 1), new btVector3(1, -1, -1), new btVector3(1, 0, 1), false); btGImpactMeshShape meshtest = new btGImpactMeshShape(testMesh); meshtest.updateBound(); btRigidBody groundbody = new btRigidBody(0, new btDefaultMotionState( new btTransform(new btQuaternion(0, 0, 0, 1), new btVector3(128, 128, 256f / 2f))), obj, new btVector3(0, 0, 0)); btRigidBody capbody = new btRigidBody(200, new btDefaultMotionState( new btTransform(new btQuaternion(0, 0, 0, 1), new btVector3(128, 128, 25))), cap, new btVector3(0, 0, 0)); btRigidBody meshbody = new btRigidBody(200, new btDefaultMotionState( new btTransform(new btQuaternion(0, 0, 0, 1), new btVector3(128, 128, 29))), meshtest, new btVector3(0, 0, 0)); btRigidBodyConstructionInfo constructioninfotest = new btRigidBodyConstructionInfo(); constructioninfotest.m_collisionShape = new btBoxShape(new btVector3(0.5f, 0.5f, 0.5f)); constructioninfotest.m_localInertia = new btVector3(0, 0, 0); constructioninfotest.m_motionState = new btDefaultMotionState(new btTransform(new btQuaternion(0.3f, -0.4f, 0.8f, 0.1f), new btVector3(128.5f, 128, 25)), new btTransform(new btQuaternion(0, 0, 0, 1), new btVector3(0, 0.25f, 0))); constructioninfotest.m_startWorldTransform = new btTransform(new btQuaternion(0, 0, 0, 1), new btVector3(0, 0, 0)); constructioninfotest.m_mass = 2000000; constructioninfotest.m_linearDamping = 0; constructioninfotest.m_angularDamping = 0; constructioninfotest.m_friction = 0.1f; constructioninfotest.m_restitution = 0; constructioninfotest.m_linearSleepingThreshold = 0.8f; constructioninfotest.m_angularSleepingThreshold = 1; constructioninfotest.m_additionalDamping = false; constructioninfotest.m_additionalDampingFactor = 0.005f; constructioninfotest.m_additionalLinearDampingThresholdSqr = 0.01f; constructioninfotest.m_additionalAngularDampingThresholdSqr = 0.01f; constructioninfotest.m_additionalAngularDampingFactor = 0.01f; constructioninfotest.commit(); btGImpactCollisionAlgorithm.registerAlgorithm(coldisp); btRigidBody cubetest = new btRigidBody(constructioninfotest); dynamicsWorld.addRigidBody(groundbody); dynamicsWorld.addRigidBody(cubetest); dynamicsWorld.addRigidBody(capbody); dynamicsWorld.addRigidBody(meshbody); int frame = 0; for (int i = 0; i < 26; i++) { int frames = dynamicsWorld.stepSimulation(((i % 60) / 60f), 10, (1f / 60)); frame += frames; Console.WriteLine(String.Format("Cube: frame {0} frames: {1} POS:{2}, quat:{3}", frame, frames, cubetest.getInterpolationWorldTransform().getOrigin().testStr(), cubetest.getWorldTransform().getRotation().testStr())); Console.WriteLine(String.Format("Cap: frame {0} frames: {1} POS:{2}, quat:{3}", frame, frames, capbody.getInterpolationWorldTransform().getOrigin().testStr(), capbody.getWorldTransform().getRotation().testStr())); Console.WriteLine(String.Format("Mesh: frame {0} frames: {1} POS:{2}, quat:{3}", frame, frames, meshbody.getInterpolationWorldTransform().getOrigin().testStr(), meshbody.getWorldTransform().getRotation().testStr())); } dynamicsWorld.removeRigidBody(meshbody); dynamicsWorld.removeRigidBody(capbody); dynamicsWorld.removeRigidBody(cubetest); dynamicsWorld.removeRigidBody(groundbody); cubetest.Dispose(); groundbody.Dispose(); capbody.Dispose(); cap.Dispose(); obj.Dispose(); testbtAxisSweep3.Dispose(); dynamicsWorld.Dispose(); coldisp.Dispose(); colconfig.Dispose(); seqimpconssol.Dispose(); testvec.Dispose(); testvec2.Dispose(); testvec3.Dispose(); testvec4.Dispose(); }
internal static global::System.Runtime.InteropServices.HandleRef getCPtr(btRigidBodyConstructionInfo obj) { return((obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr); }