//----------------------------------------------------------------------------------------------
public virtual void MouseFunc(ref MouseState oldMouseState, ref MouseState newMouseState)
{
IndexedVector3 rayTo = GetRayTo(newMouseState.X, newMouseState.Y);
if (WasReleased(ref oldMouseState,ref newMouseState,2))
{
ShootBox(rayTo);
}
else if (WasReleased(ref oldMouseState,ref newMouseState,1))
{
//apply an impulse
if (m_dynamicsWorld != null)
{
ClosestRayResultCallback rayCallback = new ClosestRayResultCallback(new IndexedVector3(m_cameraPosition), rayTo);
IndexedVector3 ivPos = new IndexedVector3(m_cameraPosition);
IndexedVector3 ivTo = new IndexedVector3(rayTo);
m_dynamicsWorld.RayTest(ref ivPos,ref ivTo, rayCallback);
if (rayCallback.HasHit())
{
RigidBody body = RigidBody.Upcast(rayCallback.m_collisionObject);
if (body != null)
{
body.SetActivationState(ActivationState.ACTIVE_TAG);
IndexedVector3 impulse = rayTo;
impulse.Normalize();
float impulseStrength = 10f;
impulse *= impulseStrength;
IndexedVector3 relPos = rayCallback.m_hitPointWorld - body.GetCenterOfMassPosition();
body.ApplyImpulse(ref impulse, ref relPos);
}
}
}
}
else if (newMouseState.LeftButton == ButtonState.Pressed)
{
//add a point to point constraint for picking
if (m_dynamicsWorld != null)
{
IndexedVector3 rayFrom;
if (m_ortho)
{
rayFrom = rayTo;
rayFrom.Z = -100.0f;
}
else
{
rayFrom = new IndexedVector3(m_cameraPosition);
}
ClosestRayResultCallback rayCallback = new ClosestRayResultCallback(ref rayFrom, ref rayTo);
IndexedVector3 ivPos = new IndexedVector3(m_cameraPosition);
IndexedVector3 ivTo = new IndexedVector3(rayTo);
m_dynamicsWorld.RayTest(ref ivPos, ref ivTo, rayCallback);
if (rayCallback.HasHit())
{
RigidBody body = RigidBody.Upcast(rayCallback.m_collisionObject);
if (body != null)
{
//other exclusions?
if (!(body.IsStaticObject() || body.IsKinematicObject()))
{
pickedBody = body;
pickedBody.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
IndexedVector3 pickPos = rayCallback.m_hitPointWorld;
IndexedVector3 localPivot = body.GetCenterOfMassTransform().Inverse() * pickPos;
if (use6Dof)
{
IndexedMatrix tr = IndexedMatrix.Identity;
tr._origin = localPivot;
Generic6DofConstraint dof6 = new Generic6DofConstraint(body, ref tr, false);
dof6.SetLinearLowerLimit(new IndexedVector3(0, 0, 0));
dof6.SetLinearUpperLimit(new IndexedVector3(0, 0, 0));
dof6.SetAngularLowerLimit(new IndexedVector3(0, 0, 0));
dof6.SetAngularUpperLimit(new IndexedVector3(0, 0, 0));
m_dynamicsWorld.AddConstraint(dof6);
m_pickConstraint = dof6;
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_CFM, 0.8f, 0);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_CFM, 0.8f, 1);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_CFM, 0.8f, 2);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_CFM, 0.8f, 3);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_CFM, 0.8f, 4);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_CFM, 0.8f, 5);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_ERP, 0.1f, 0);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_ERP, 0.1f, 1);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_ERP, 0.1f, 2);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_ERP, 0.1f, 3);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_ERP, 0.1f, 4);
dof6.SetParam(ConstraintParams.BT_CONSTRAINT_STOP_ERP, 0.1f, 5);
}
else
{
Point2PointConstraint p2p = new Point2PointConstraint(body, ref localPivot);
m_dynamicsWorld.AddConstraint(p2p, false);
p2p.m_setting.m_impulseClamp = mousePickClamping;
p2p.m_setting.m_tau = 0.001f;
if (m_pickConstraint != null)
{
int ibreak = 0;
}
m_pickConstraint = p2p;
}
//save mouse position for dragging
gOldPickingPos = rayTo;
gHitPos = pickPos;
gOldPickingDist = (pickPos - rayFrom).Length();
//very weak constraint for picking
}
}
}
}
}
else if (WasReleased(ref oldMouseState,ref newMouseState,0))
{
if (m_pickConstraint != null && m_dynamicsWorld != null)
{
m_dynamicsWorld.RemoveConstraint(m_pickConstraint);
m_pickConstraint = null;
//printf("removed constraint %i",gPickingConstraintId);
m_pickConstraint = null;
pickedBody.ForceActivationState(ActivationState.ACTIVE_TAG);
pickedBody.SetDeactivationTime(0f);
pickedBody = null;
}
}
}
public override void InitializeDemo()
{
//string filename = @"E:\users\man\bullet\xna-constraint-output.txt";
//FileStream filestream = File.Open(filename, FileMode.Create, FileAccess.Write, FileShare.Read);
//BulletGlobals.g_streamWriter = new StreamWriter(filestream);
//maxiterations = 100;
m_collisionConfiguration = new DefaultCollisionConfiguration();
m_dispatcher = new CollisionDispatcher(m_collisionConfiguration);
IndexedVector3 worldMin = new IndexedVector3(-1000,-1000,-1000);
IndexedVector3 worldMax = new IndexedVector3(1000,1000,1000);
m_broadphase = new AxisSweep3Internal(ref worldMin, ref worldMax, 0xfffe, 0xffff, 16384, null, false);
m_constraintSolver = new SequentialImpulseConstraintSolver();
m_dynamicsWorld = new DiscreteDynamicsWorld(m_dispatcher,m_broadphase,m_constraintSolver,m_collisionConfiguration);
m_dynamicsWorld.SetDebugDrawer(m_debugDraw);
SetCameraDistance(26f);
//CollisionShape groundShape = new BoxShape(new IndexedVector3(50f, 40f, 50f));
CollisionShape groundShape = new StaticPlaneShape(new IndexedVector3(0, 1, 0), 40);
m_collisionShapes.Add(groundShape);
IndexedMatrix groundTransform = IndexedMatrix.Identity;
groundTransform._origin = new IndexedVector3(0, -56, 0);
RigidBody groundBody = LocalCreateRigidBody(0, ref groundTransform, groundShape);
CollisionShape shape = new BoxShape(new IndexedVector3(CUBE_HALF_EXTENTS, CUBE_HALF_EXTENTS, CUBE_HALF_EXTENTS));
m_collisionShapes.Add(shape);
IndexedMatrix trans = IndexedMatrix.Identity;
trans._origin = new IndexedVector3(0, 20, 0);
float mass = 1f;
#if true
//point to point constraint with a breaking threshold
{
trans = IndexedMatrix.Identity;
trans._origin = new IndexedVector3(1,30,-5);
LocalCreateRigidBody( mass,trans,shape);
trans._origin = new IndexedVector3(0,0,-5);
RigidBody body0 = LocalCreateRigidBody( mass,trans,shape);
trans._origin = new IndexedVector3(2*CUBE_HALF_EXTENTS,20,0);
mass = 1.0f;
RigidBody body1 = null;//localCreateRigidBody( mass,trans,shape);
IndexedVector3 pivotInA = new IndexedVector3(CUBE_HALF_EXTENTS,CUBE_HALF_EXTENTS,0);
TypedConstraint p2p = new Point2PointConstraint(body0,ref pivotInA);
m_dynamicsWorld.AddConstraint(p2p);
p2p.SetBreakingImpulseThreshold(10.2f);
p2p.SetDbgDrawSize(5.0f);
}
#endif
#if true
//point to point constraint (ball socket)
//SEEMS OK
{
//trans = IndexedMatrix.Identity;
RigidBody body0 = LocalCreateRigidBody( mass,ref trans,shape);
trans._origin = new IndexedVector3(2*CUBE_HALF_EXTENTS,20,0);
mass = 1f;
RigidBody body1 = null;//localCreateRigidBody( mass,trans,shape);
IndexedVector3 pivotInA = new IndexedVector3(CUBE_HALF_EXTENTS,-CUBE_HALF_EXTENTS,-CUBE_HALF_EXTENTS);
IndexedVector3 axisInA = new IndexedVector3(0,0,1);
IndexedVector3 pivotInB = body1 != null ? body1.GetCenterOfMassTransform().Inverse() * (body0.GetCenterOfMassTransform() * (pivotInA)) : pivotInA;
IndexedVector3 axisInB = body1 != null ? (body1.GetCenterOfMassTransform()._basis.Inverse() * (body1.GetCenterOfMassTransform()._basis * axisInA)) :
body0.GetCenterOfMassTransform()._basis * axisInA;
#if P2P
TypedConstraint p2p = new Point2PointConstraint(body0,ref pivotInA);
//btTypedConstraint* p2p = new btPoint2PointConstraint(*body0,*body1,pivotInA,pivotInB);
//btTypedConstraint* hinge = new btHingeConstraint(*body0,*body1,pivotInA,pivotInB,axisInA,axisInB);
m_dynamicsWorld.AddConstraint(p2p);
p2p.SetDbgDrawSize(5.0f);
#else
HingeConstraint hinge = new HingeConstraint(body0,ref pivotInA,ref axisInA,false);
float targetVelocity = 1f;
float maxMotorImpulse = 1.0f;
hinge.EnableAngularMotor(true,targetVelocity,maxMotorImpulse);
m_dynamicsWorld.AddConstraint(hinge);//p2p);
hinge.SetDbgDrawSize(5f);
#endif
}
#endif
#if true
//create a slider, using the generic D6 constraint
// SEEMS OK
{
mass = 1f;
IndexedVector3 sliderWorldPos = new IndexedVector3(0,10,0);
IndexedVector3 sliderAxis = new IndexedVector3(1,0,0);
float angle=0f;//SIMD_RADS_PER_DEG * 10.f;
IndexedBasisMatrix sliderOrientation = new IndexedBasisMatrix(new IndexedQuaternion(sliderAxis,angle));
trans = IndexedMatrix.Identity;
trans._origin = sliderWorldPos;
//trans.setBasis(sliderOrientation);
sliderTransform = trans;
d6body0 = LocalCreateRigidBody( mass,ref trans,shape);
d6body0.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
RigidBody fixedBody1 = LocalCreateRigidBody(0,ref trans,null);
m_dynamicsWorld.AddRigidBody(fixedBody1);
IndexedMatrix frameInA, frameInB;
frameInA = IndexedMatrix.Identity;
frameInB = IndexedMatrix.Identity;
frameInA._origin = new IndexedVector3(0, 5, 0);
frameInB._origin = new IndexedVector3(0, 5, 0);
// bool useLinearReferenceFrameA = false;//use fixed frame B for linear llimits
bool useLinearReferenceFrameA = true;//use fixed frame A for linear llimits
spSlider6Dof = new Generic6DofConstraint(fixedBody1, d6body0,ref frameInA,ref frameInB,useLinearReferenceFrameA);
spSlider6Dof.SetLinearLowerLimit(ref lowerSliderLimit);
spSlider6Dof.SetLinearUpperLimit(ref hiSliderLimit);
//range should be small, otherwise singularities will 'explode' the constraint
IndexedVector3 angularLower = new IndexedVector3(-1.5f,0,0);
IndexedVector3 angularUpper = -angularLower;
spSlider6Dof.SetAngularLowerLimit(ref angularLower);
spSlider6Dof.SetAngularUpperLimit(ref angularUpper);
// slider.setAngularLowerLimit(IndexedVector3(0,0,0));
// slider.setAngularUpperLimit(IndexedVector3(0,0,0));
spSlider6Dof.SetAngularLowerLimit(new IndexedVector3(-MathUtil.SIMD_PI, 0, 0));
spSlider6Dof.SetAngularUpperLimit(new IndexedVector3(1.5f, 0, 0));
spSlider6Dof.GetTranslationalLimitMotor().m_enableMotor[0] = true;
spSlider6Dof.GetTranslationalLimitMotor().m_targetVelocity.X = -5.0f;
spSlider6Dof.GetTranslationalLimitMotor().m_maxMotorForce.X = 0.1f;
m_dynamicsWorld.AddConstraint(spSlider6Dof);
spSlider6Dof.SetDbgDrawSize(5f);
}
#endif
#if true
{ // create a door using hinge constraint attached to the world
CollisionShape pDoorShape = new BoxShape(new IndexedVector3(2.0f, 5.0f, 0.2f));
m_collisionShapes.Add(pDoorShape);
IndexedMatrix doorTrans = IndexedMatrix.Identity;
doorTrans._origin = new IndexedVector3(-5.0f, -2.0f, 0.0f);
RigidBody pDoorBody = LocalCreateRigidBody( 1.0f, ref doorTrans, pDoorShape);
pDoorBody.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
IndexedVector3 btPivotA = new IndexedVector3( 10f+2.1f, -2.0f, 0.0f ); // right next to the door slightly outside
IndexedVector3 btAxisA = new IndexedVector3( 0.0f, 1.0f, 0.0f ); // pointing upwards, aka Y-axis
spDoorHinge = new HingeConstraint( pDoorBody, ref btPivotA, ref btAxisA,false );
spDoorHinge.SetLimit(-MathUtil.SIMD_PI * 0.25f, MathUtil.SIMD_PI * 0.25f);
m_dynamicsWorld.AddConstraint(spDoorHinge);
spDoorHinge.SetDbgDrawSize(5.0f);
}
#endif
#if true
{ // create a generic 6DOF constraint
// SEEMS OK - But debug draw a bit wrong?
IndexedMatrix tr = IndexedMatrix.Identity;
tr._origin = new IndexedVector3(10f, 6f, 0f);
//tr.getBasis().setEulerZYX(0,0,0);
// RigidBody pBodyA = localCreateRigidBody( mass, tr, shape);
RigidBody pBodyA = LocalCreateRigidBody( 0.0f, ref tr, shape);
// RigidBody pBodyA = localCreateRigidBody( 0.0, tr, 0);
pBodyA.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
tr = IndexedMatrix.Identity;
tr._origin = new IndexedVector3(0f, 6f, 0f);
//tr.getBasis().setEulerZYX(0,0,0);
RigidBody pBodyB = LocalCreateRigidBody(mass, ref tr, shape);
pBodyB.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
IndexedMatrix frameInA, frameInB;
frameInA = IndexedMatrix.CreateTranslation(-5,0,0);
frameInB = IndexedMatrix.CreateTranslation(5,0,0);
Generic6DofConstraint pGen6DOF = new Generic6DofConstraint(pBodyA, pBodyB, ref frameInA, ref frameInB, true);
// btGeneric6DofConstraint* pGen6DOF = new btGeneric6DofConstraint(*pBodyA, *pBodyB, frameInA, frameInB, false);
IndexedVector3 linearLower = new IndexedVector3(-10, -2, -1);
pGen6DOF.SetLinearLowerLimit(ref linearLower);
IndexedVector3 linearUpper = new IndexedVector3(10,2,1);
pGen6DOF.SetLinearUpperLimit(ref linearUpper);
// ? why again?
//linearLower = new IndexedVector3(-10,0,0);
//pGen6DOF.setLinearLowerLimit(ref linearLower);
// pGen6DOF.setLinearUpperLimit(IndexedVector3(10., 0., 0.));
// pGen6DOF.setLinearLowerLimit(IndexedVector3(0., 0., 0.));
// pGen6DOF.setLinearUpperLimit(IndexedVector3(0., 0., 0.));
// pGen6DOF.getTranslationalLimitMotor().m_enableMotor[0] = true;
// pGen6DOF.getTranslationalLimitMotor().m_targetVelocity[0] = 5.0f;
// pGen6DOF.getTranslationalLimitMotor().m_maxMotorForce[0] = 0.1f;
// pGen6DOF.setAngularLowerLimit(IndexedVector3(0., SIMD_HALF_PI*0.9, 0.));
// pGen6DOF.setAngularUpperLimit(IndexedVector3(0., -SIMD_HALF_PI*0.9, 0.));
// pGen6DOF.setAngularLowerLimit(IndexedVector3(0., 0., -SIMD_HALF_PI));
// pGen6DOF.setAngularUpperLimit(IndexedVector3(0., 0., SIMD_HALF_PI));
IndexedVector3 angularLower = new IndexedVector3(-MathUtil.SIMD_HALF_PI * 0.5f, -0.75f, -MathUtil.SIMD_HALF_PI * 0.8f);
IndexedVector3 angularUpper = -angularLower;
pGen6DOF.SetAngularLowerLimit(ref angularLower);
pGen6DOF.SetAngularUpperLimit(ref angularUpper);
// pGen6DOF.setAngularLowerLimit(IndexedVector3(0.f, -0.75, SIMD_HALF_PI * 0.8f));
// pGen6DOF.setAngularUpperLimit(IndexedVector3(0.f, 0.75, -SIMD_HALF_PI * 0.8f));
// pGen6DOF.setAngularLowerLimit(IndexedVector3(0.f, -SIMD_HALF_PI * 0.8f, SIMD_HALF_PI * 1.98f));
// pGen6DOF.setAngularUpperLimit(IndexedVector3(0.f, SIMD_HALF_PI * 0.8f, -SIMD_HALF_PI * 1.98f));
// pGen6DOF.setAngularLowerLimit(IndexedVector3(-0.75,-0.5, -0.5));
// pGen6DOF.setAngularUpperLimit(IndexedVector3(0.75,0.5, 0.5));
// pGen6DOF.setAngularLowerLimit(IndexedVector3(-0.75,0., 0.));
// pGen6DOF.setAngularUpperLimit(IndexedVector3(0.75,0., 0.));
m_dynamicsWorld.AddConstraint(pGen6DOF, true);
pGen6DOF.SetDbgDrawSize(5.0f);
}
#endif
#if true
{ // create a ConeTwist constraint
IndexedMatrix tr = IndexedMatrix.CreateTranslation(-10,5,0);
RigidBody pBodyA = LocalCreateRigidBody( 1.0f, ref tr, shape);
pBodyA.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
tr = IndexedMatrix.CreateTranslation(-10,-5,0);
RigidBody pBodyB = LocalCreateRigidBody(0.0f, ref tr, shape);
IndexedMatrix frameInA, frameInB;
frameInA = MathUtil.SetEulerZYX(0, 0, MathUtil.SIMD_HALF_PI);
frameInA._origin = new IndexedVector3(0, -5, 0);
frameInB = MathUtil.SetEulerZYX(0, 0, MathUtil.SIMD_HALF_PI);
frameInB._origin = new IndexedVector3(0, 5, 0);
ConeTwistConstraint pCT = new ConeTwistConstraint(pBodyA, pBodyB, ref frameInA, ref frameInB);
pCT.SetLimit(MathUtil.SIMD_QUARTER_PI * 0.6f, MathUtil.SIMD_QUARTER_PI, MathUtil.SIMD_PI * 0.8f, 0.5f); // soft limit == hard limit
m_dynamicsWorld.AddConstraint(pCT, true);
pCT.SetDbgDrawSize(5.0f);
}
#endif
#if true
{ // Hinge connected to the world, with motor (to hinge motor with new and old constraint solver)
// WORKS OK
IndexedMatrix tr = IndexedMatrix.Identity;
RigidBody pBody = LocalCreateRigidBody( 1.0f, ref tr, shape);
pBody.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
IndexedVector3 btPivotA = new IndexedVector3( 10.0f, 0.0f, 0.0f );
IndexedVector3 btAxisA = new IndexedVector3( 0.0f, 0.0f, 1.0f );
HingeConstraint pHinge = new HingeConstraint(pBody, ref btPivotA, ref btAxisA,false);
// pHinge.enableAngularMotor(true, -1.0, 0.165); // use for the old solver
pHinge.EnableAngularMotor(true, -1.0f, 1.65f); // use for the new SIMD solver
m_dynamicsWorld.AddConstraint(pHinge);
pHinge.SetDbgDrawSize(5.0f);
}
#endif
#if true
{
// WORKS OK
// create a universal joint using generic 6DOF constraint
// create two rigid bodies
// static bodyA (parent) on top:
IndexedMatrix tr = IndexedMatrix.CreateTranslation(20,4,0);
RigidBody pBodyA = LocalCreateRigidBody( 0.0f, ref tr, shape);
pBodyA.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
// dynamic bodyB (child) below it :
tr = IndexedMatrix.CreateTranslation(20,0,0);
RigidBody pBodyB = LocalCreateRigidBody(1.0f, ref tr, shape);
pBodyB.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
// add some (arbitrary) data to build constraint frames
IndexedVector3 parentAxis = new IndexedVector3(1.0f, 0.0f, 0.0f);
IndexedVector3 childAxis = new IndexedVector3(0.0f, 0.0f, 1.0f);
IndexedVector3 anchor = new IndexedVector3(20.0f, 2.0f, 0.0f);
UniversalConstraint pUniv = new UniversalConstraint(pBodyA, pBodyB, ref anchor, ref parentAxis, ref childAxis);
pUniv.SetLowerLimit(-MathUtil.SIMD_HALF_PI * 0.5f, -MathUtil.SIMD_HALF_PI * 0.5f);
pUniv.SetUpperLimit(MathUtil.SIMD_HALF_PI * 0.5f, MathUtil.SIMD_HALF_PI * 0.5f);
// add constraint to world
m_dynamicsWorld.AddConstraint(pUniv, true);
// draw constraint frames and limits for debugging
pUniv.SetDbgDrawSize(5.0f);
}
#endif
#if true
// WORKS OK
{ // create a generic 6DOF constraint with springs
IndexedMatrix tr = IndexedMatrix.CreateTranslation(-20f,16f,0f);
//tr.setIdentity();
//tr.setOrigin(btVector3(btScalar(-20.), btScalar(16.), btScalar(0.)));
//tr.getBasis().setEulerZYX(0,0,0);
RigidBody pBodyA = LocalCreateRigidBody( 0.0f, ref tr, shape);
pBodyA.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
//tr.setIdentity();
//tr.setOrigin(btVector3(btScalar(-10.), btScalar(16.), btScalar(0.)));
//tr.getBasis().setEulerZYX(0,0,0);
tr = IndexedMatrix.CreateTranslation(-10,16,0);
RigidBody pBodyB = LocalCreateRigidBody(1.0f, ref tr, shape);
pBodyB.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
IndexedMatrix frameInA = IndexedMatrix.CreateTranslation(10f,0f,0f);
IndexedMatrix frameInB = IndexedMatrix.CreateTranslation(0f,0f,0f);
Generic6DofSpringConstraint pGen6DOFSpring = new Generic6DofSpringConstraint(pBodyA, pBodyB, ref frameInA, ref frameInB, true);
pGen6DOFSpring.SetLinearUpperLimit(new IndexedVector3(5f, 0f, 0f));
pGen6DOFSpring.SetLinearLowerLimit(new IndexedVector3(-5f, 0f, 0f));
pGen6DOFSpring.SetAngularLowerLimit(new IndexedVector3(0f, 0f, -1.5f));
pGen6DOFSpring.SetAngularUpperLimit(new IndexedVector3(0f, 0f, 1.5f));
m_dynamicsWorld.AddConstraint(pGen6DOFSpring, true);
pGen6DOFSpring.SetDbgDrawSize(5.0f);
pGen6DOFSpring.EnableSpring(0, true);
pGen6DOFSpring.SetStiffness(0, 39.478f);
pGen6DOFSpring.SetDamping(0, 0.5f);
pGen6DOFSpring.EnableSpring(5, true);
pGen6DOFSpring.SetStiffness(5, 39.478f);
pGen6DOFSpring.SetDamping(0, 0.3f);
pGen6DOFSpring.SetEquilibriumPoint();
}
#endif
#if true
{
// WORKS OK
// create a Hinge2 joint
// create two rigid bodies
// static bodyA (parent) on top:
IndexedMatrix tr = IndexedMatrix.CreateTranslation(-20f,4f,0f);
RigidBody pBodyA = LocalCreateRigidBody( 0.0f, ref tr, shape);
pBodyA.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
// dynamic bodyB (child) below it :
tr = IndexedMatrix.CreateTranslation(-20f,0f,0f);
RigidBody pBodyB = LocalCreateRigidBody(1.0f, ref tr, shape);
pBodyB.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
// add some data to build constraint frames
IndexedVector3 parentAxis = new IndexedVector3(0.0f, 1.0f, 0.0f);
IndexedVector3 childAxis = new IndexedVector3(1.0f, 0.0f, 0.0f);
IndexedVector3 anchor = new IndexedVector3(-20.0f, 0.0f, 0.0f);
Hinge2Constraint pHinge2 = new Hinge2Constraint(pBodyA, pBodyB, ref anchor, ref parentAxis, ref childAxis);
pHinge2.SetLowerLimit(-MathUtil.SIMD_HALF_PI * 0.5f);
pHinge2.SetUpperLimit(MathUtil.SIMD_HALF_PI * 0.5f);
// add constraint to world
m_dynamicsWorld.AddConstraint(pHinge2, true);
// draw constraint frames and limits for debugging
pHinge2.SetDbgDrawSize(5.0f);
}
#endif
#if true
{
// WORKS OK
// create a Hinge joint between two dynamic bodies
// create two rigid bodies
// static bodyA (parent) on top:
IndexedMatrix tr = IndexedMatrix.CreateTranslation(-20f,-2f,0f);
RigidBody pBodyA = LocalCreateRigidBody( 1.0f, ref tr, shape);
pBodyA.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
// dynamic bodyB:
tr = IndexedMatrix.CreateTranslation(-30f,-2f,0f);
RigidBody pBodyB = LocalCreateRigidBody(10.0f, ref tr, shape);
pBodyB.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
// add some data to build constraint frames
IndexedVector3 axisA = new IndexedVector3(0.0f, 1.0f, 0.0f);
IndexedVector3 axisB = new IndexedVector3(0.0f, 1.0f, 0.0f);
IndexedVector3 pivotA = new IndexedVector3(-5.0f, 0.0f, 0.0f);
IndexedVector3 pivotB = new IndexedVector3(5.0f, 0.0f, 0.0f);
spHingeDynAB = new HingeConstraint(pBodyA, pBodyB, ref pivotA, ref pivotB, ref axisA, ref axisB);
spHingeDynAB.SetLimit(-MathUtil.SIMD_HALF_PI * 0.5f, MathUtil.SIMD_HALF_PI * 0.5f);
// add constraint to world
m_dynamicsWorld.AddConstraint(spHingeDynAB, true);
// draw constraint frames and limits for debugging
spHingeDynAB.SetDbgDrawSize(5.0f);
}
#endif
#if true
{ // 6DOF connected to the world, with motor
IndexedMatrix tr = IndexedMatrix.CreateTranslation(10,-15,0);
RigidBody pBody = LocalCreateRigidBody( 1.0f, ref tr, shape);
pBody.SetActivationState(ActivationState.DISABLE_DEACTIVATION);
IndexedMatrix frameB = IndexedMatrix.Identity;
Generic6DofConstraint pGen6Dof = new Generic6DofConstraint(pBody, ref frameB, false );
m_dynamicsWorld.AddConstraint(pGen6Dof);
pGen6Dof.SetDbgDrawSize(5.0f);
pGen6Dof.SetAngularLowerLimit(new IndexedVector3(0,0,0));
pGen6Dof.SetAngularUpperLimit(new IndexedVector3(0,0,0));
pGen6Dof.SetLinearLowerLimit(new IndexedVector3(-10.0f, 0, 0));
pGen6Dof.SetLinearUpperLimit(new IndexedVector3(10.0f, 0, 0));
pGen6Dof.GetTranslationalLimitMotor().m_enableMotor[0] = true;
pGen6Dof.GetTranslationalLimitMotor().m_targetVelocity[0] = 5.0f;
pGen6Dof.GetTranslationalLimitMotor().m_maxMotorForce[0] = 0.1f;
}
#endif
}