private void CreateHinge2()
{
// static bodyA (parent) on top
RigidBody bodyA = LocalCreateRigidBody(0, Matrix.Translation(-20, 4, 0), cubeShape);
bodyA.ActivationState = ActivationState.DisableDeactivation;
// dynamic bodyB (child) below it
RigidBody bodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(-20, 0, 0), cubeShape);
bodyB.ActivationState = ActivationState.DisableDeactivation;
// add some data to build constraint frames
Vector3 parentAxis = new Vector3(0, 1, 0);
Vector3 childAxis = new Vector3(1, 0, 0);
Vector3 anchor = new Vector3(-20, 0, 0);
var hinge2 = new Hinge2Constraint(bodyA, bodyB, anchor, parentAxis, childAxis);
hinge2.SetLowerLimit(-(float)Math.PI / 4);
hinge2.SetUpperLimit((float)Math.PI / 4);
// draw constraint frames and limits for debugging
hinge2.DebugDrawSize = 5;
World.AddConstraint(hinge2, true);
}
public Hinge2Joint(
ICollisionShape shapeA,
ICollisionShape shapeB,
Vector3d startAnchorPosition,
Vector3d hingeAxis,
Vector3d rotationAxis,
double restoreCoefficient,
double springCoefficientHingeAxis,
double springCoefficient)
{
hinge2Constraint = new Hinge2Constraint(
((IMapper)shapeA).GetShape(),
((IMapper)shapeB).GetShape(),
startAnchorPosition,
hingeAxis,
rotationAxis,
restoreCoefficient,
springCoefficientHingeAxis,
springCoefficient);
}
protected override void OnInitializePhysics()
{
SetupEmptyDynamicsWorld();
CollisionShape groundShape = new BoxShape(50, 1, 50);
//CollisionShape groundShape = new StaticPlaneShape(Vector3.UnitY, 40);
CollisionShapes.Add(groundShape);
RigidBody body = LocalCreateRigidBody(0, Matrix.Translation(0, -16, 0), groundShape);
body.UserObject = "Ground";
CollisionShape shape = new BoxShape(new Vector3(CubeHalfExtents));
CollisionShapes.Add(shape);
const float THETA = (float)Math.PI / 4.0f;
float L_1 = 2 - (float)Math.Tan(THETA);
float L_2 = 1 / (float)Math.Cos(THETA);
float RATIO = L_2 / L_1;
RigidBody bodyA;
RigidBody bodyB;
CollisionShape cylA = new CylinderShape(0.2f, 0.25f, 0.2f);
CollisionShape cylB = new CylinderShape(L_1, 0.025f, L_1);
CompoundShape cyl0 = new CompoundShape();
cyl0.AddChildShape(Matrix.Identity, cylA);
cyl0.AddChildShape(Matrix.Identity, cylB);
float mass = 6.28f;
Vector3 localInertia;
cyl0.CalculateLocalInertia(mass, out localInertia);
RigidBodyConstructionInfo ci = new RigidBodyConstructionInfo(mass, null, cyl0, localInertia);
ci.StartWorldTransform = Matrix.Translation(-8, 1, -8);
body = new RigidBody(ci); //1,0,cyl0,localInertia);
World.AddRigidBody(body);
body.LinearFactor = Vector3.Zero;
body.AngularFactor = new Vector3(0, 1, 0);
bodyA = body;
cylA = new CylinderShape(0.2f, 0.26f, 0.2f);
cylB = new CylinderShape(L_2, 0.025f, L_2);
cyl0 = new CompoundShape();
cyl0.AddChildShape(Matrix.Identity, cylA);
cyl0.AddChildShape(Matrix.Identity, cylB);
mass = 6.28f;
cyl0.CalculateLocalInertia(mass, out localInertia);
ci = new RigidBodyConstructionInfo(mass, null, cyl0, localInertia);
Quaternion orn = Quaternion.RotationAxis(new Vector3(0, 0, 1), -THETA);
ci.StartWorldTransform = Matrix.RotationQuaternion(orn) * Matrix.Translation(-10, 2, -8);
body = new RigidBody(ci);//1,0,cyl0,localInertia);
body.LinearFactor = Vector3.Zero;
HingeConstraint hinge = new HingeConstraint(body, Vector3.Zero, new Vector3(0, 1, 0), true);
World.AddConstraint(hinge);
bodyB = body;
body.AngularVelocity = new Vector3(0, 3, 0);
World.AddRigidBody(body);
Vector3 axisA = new Vector3(0, 1, 0);
Vector3 axisB = new Vector3(0, 1, 0);
orn = Quaternion.RotationAxis(new Vector3(0, 0, 1), -THETA);
Matrix mat = Matrix.RotationQuaternion(orn);
axisB = new Vector3(mat.M21, mat.M22, mat.M23);
GearConstraint gear = new GearConstraint(bodyA, bodyB, axisA, axisB, RATIO);
World.AddConstraint(gear, true);
mass = 1.0f;
RigidBody body0 = LocalCreateRigidBody(mass, Matrix.Translation(0, 20, 0), shape);
RigidBody body1 = null;//LocalCreateRigidBody(mass, Matrix.Translation(2*CUBE_HALF_EXTENTS,20,0), shape);
//RigidBody body1 = LocalCreateRigidBody(0, Matrix.Translation(2*CUBE_HALF_EXTENTS,20,0), null);
//body1.ActivationState = ActivationState.DisableDeactivation;
//body1.SetDamping(0.3f, 0.3f);
Vector3 pivotInA = new Vector3(CubeHalfExtents, -CubeHalfExtents, -CubeHalfExtents);
Vector3 axisInA = new Vector3(0, 0, 1);
Vector3 pivotInB;
if (body1 != null)
{
Matrix transform = Matrix.Invert(body1.CenterOfMassTransform) * body0.CenterOfMassTransform;
pivotInB = Vector3.TransformCoordinate(pivotInA, transform);
}
else
{
pivotInB = pivotInA;
}
Vector3 axisInB;
if (body1 != null)
{
Matrix transform = Matrix.Invert(body1.CenterOfMassTransform) * body1.CenterOfMassTransform;
axisInB = Vector3.TransformCoordinate(axisInA, transform);
}
else
{
axisInB = Vector3.TransformCoordinate(axisInA, body0.CenterOfMassTransform);
}
#if P2P
{
TypedConstraint p2p = new Point2PointConstraint(body0, pivotInA);
//TypedConstraint p2p = new Point2PointConstraint(body0, body1, pivotInA, pivotInB);
//TypedConstraint hinge = new HingeConstraint(body0, body1, pivotInA, pivotInB, axisInA, axisInB);
World.AddConstraint(p2p);
p2p.DebugDrawSize = 5;
}
#else
{
hinge = new HingeConstraint(body0, pivotInA, axisInA);
//use zero targetVelocity and a small maxMotorImpulse to simulate joint friction
//float targetVelocity = 0.f;
//float maxMotorImpulse = 0.01;
const float targetVelocity = 1.0f;
const float maxMotorImpulse = 1.0f;
hinge.EnableAngularMotor(true, targetVelocity, maxMotorImpulse);
World.AddConstraint(hinge);
hinge.DebugDrawSize = 5;
}
#endif
RigidBody pRbA1 = LocalCreateRigidBody(mass, Matrix.Translation(-20, 0, 30), shape);
//RigidBody pRbA1 = LocalCreateRigidBody(0.0f, Matrix.Translation(-20, 0, 30), shape);
pRbA1.ActivationState = ActivationState.DisableDeactivation;
// add dynamic rigid body B1
RigidBody pRbB1 = LocalCreateRigidBody(mass, Matrix.Translation(-20, 0, 30), shape);
//RigidBody pRbB1 = LocalCreateRigidBody(0.0f, Matrix.Translation(-20, 0, 30), shape);
pRbB1.ActivationState = ActivationState.DisableDeactivation;
// create slider constraint between A1 and B1 and add it to world
SliderConstraint spSlider1 = new SliderConstraint(pRbA1, pRbB1, Matrix.Identity, Matrix.Identity, true);
//spSlider1 = new SliderConstraint(pRbA1, pRbB1, Matrix.Identity, Matrix.Identity, false);
spSlider1.LowerLinearLimit = -15.0f;
spSlider1.UpperLinearLimit = -5.0f;
spSlider1.LowerLinearLimit = 5.0f;
spSlider1.UpperLinearLimit = 15.0f;
spSlider1.LowerLinearLimit = -10.0f;
spSlider1.UpperLinearLimit = -10.0f;
spSlider1.LowerAngularLimit = -(float)Math.PI / 3.0f;
spSlider1.UpperAngularLimit = (float)Math.PI / 3.0f;
World.AddConstraint(spSlider1, true);
spSlider1.DebugDrawSize = 5.0f;
//create a slider, using the generic D6 constraint
Vector3 sliderWorldPos = new Vector3(0, 10, 0);
Vector3 sliderAxis = Vector3.UnitX;
const float angle = 0; //SIMD_RADS_PER_DEG * 10.f;
Matrix trans = Matrix.RotationAxis(sliderAxis, angle) * Matrix.Translation(sliderWorldPos);
d6body0 = LocalCreateRigidBody(mass, trans, shape);
d6body0.ActivationState = ActivationState.DisableDeactivation;
RigidBody fixedBody1 = LocalCreateRigidBody(0, trans, null);
World.AddRigidBody(fixedBody1);
Matrix frameInA = Matrix.Translation(0, 5, 0);
Matrix frameInB = Matrix.Translation(0, 5, 0);
//bool useLinearReferenceFrameA = false;//use fixed frame B for linear llimits
const bool useLinearReferenceFrameA = true; //use fixed frame A for linear llimits
spSlider6Dof = new Generic6DofConstraint(fixedBody1, d6body0, frameInA, frameInB, useLinearReferenceFrameA)
{
LinearLowerLimit = lowerSliderLimit,
LinearUpperLimit = hiSliderLimit,
//range should be small, otherwise singularities will 'explode' the constraint
//AngularLowerLimit = new Vector3(-1.5f,0,0),
//AngularUpperLimit = new Vector3(1.5f,0,0),
//AngularLowerLimit = new Vector3(0,0,0),
//AngularUpperLimit = new Vector3(0,0,0),
AngularLowerLimit = new Vector3((float)-Math.PI, 0, 0),
AngularUpperLimit = new Vector3(1.5f, 0, 0)
};
//spSlider6Dof.TranslationalLimitMotor.EnableMotor[0] = true;
spSlider6Dof.TranslationalLimitMotor.TargetVelocity = new Vector3(-5.0f, 0, 0);
spSlider6Dof.TranslationalLimitMotor.MaxMotorForce = new Vector3(0.1f, 0, 0);
World.AddConstraint(spSlider6Dof);
spSlider6Dof.DebugDrawSize = 5;
// create a door using hinge constraint attached to the world
CollisionShape pDoorShape = new BoxShape(2.0f, 5.0f, 0.2f);
CollisionShapes.Add(pDoorShape);
RigidBody pDoorBody = LocalCreateRigidBody(1.0f, Matrix.Translation(-5.0f, -2.0f, 0.0f), pDoorShape);
pDoorBody.ActivationState = ActivationState.DisableDeactivation;
Vector3 btPivotA = new Vector3(10.0f + 2.1f, -2.0f, 0.0f); // right next to the door slightly outside
Vector3 btAxisA = Vector3.UnitY; // pointing upwards, aka Y-axis
spDoorHinge = new HingeConstraint(pDoorBody, btPivotA, btAxisA);
//spDoorHinge.SetLimit(0.0f, (float)Math.PI / 2);
// test problem values
//spDoorHinge.SetLimit(-(float)Math.PI, (float)Math.PI * 0.8f);
//spDoorHinge.SetLimit(1, -1);
//spDoorHinge.SetLimit(-(float)Math.PI * 0.8f, (float)Math.PI);
//spDoorHinge.SetLimit(-(float)Math.PI * 0.8f, (float)Math.PI, 0.9f, 0.3f, 0.0f);
//spDoorHinge.SetLimit(-(float)Math.PI * 0.8f, (float)Math.PI, 0.9f, 0.01f, 0.0f); // "sticky limits"
spDoorHinge.SetLimit(-(float)Math.PI * 0.25f, (float)Math.PI * 0.25f);
//spDoorHinge.SetLimit(0, 0);
World.AddConstraint(spDoorHinge);
spDoorHinge.DebugDrawSize = 5;
RigidBody pDropBody = LocalCreateRigidBody(10.0f, Matrix.Translation(-5.0f, 2.0f, 0.0f), shape);
// create a generic 6DOF constraint
//RigidBody pBodyA = LocalCreateRigidBody(mass, Matrix.Translation(10.0f, 6.0f, 0), shape);
RigidBody pBodyA = LocalCreateRigidBody(0, Matrix.Translation(10, 6, 0), shape);
//RigidBody pBodyA = LocalCreateRigidBody(0, Matrix.Translation(10, 6, 0), null);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
RigidBody pBodyB = LocalCreateRigidBody(mass, Matrix.Translation(0, 6, 0), shape);
//RigidBody pBodyB = LocalCreateRigidBody(0, Matrix.Translation(0, 6, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
frameInA = Matrix.Translation(-5, 0, 0);
frameInB = Matrix.Translation(5, 0, 0);
Generic6DofConstraint pGen6DOF = new Generic6DofConstraint(pBodyA, pBodyB, frameInA, frameInB, true);
//Generic6DofConstraint pGen6DOF = new Generic6DofConstraint(pBodyA, pBodyB, frameInA, frameInB, false);
pGen6DOF.LinearLowerLimit = new Vector3(-10, -2, -1);
pGen6DOF.LinearUpperLimit = new Vector3(10, 2, 1);
//pGen6DOF.LinearLowerLimit = new Vector3(-10, 0, 0);
//pGen6DOF.LinearUpperLimit = new Vector3(10, 0, 0);
//pGen6DOF.LinearLowerLimit = new Vector3(0, 0, 0);
//pGen6DOF.LinearUpperLimit = new Vector3(0, 0, 0);
//pGen6DOF.TranslationalLimitMotor.EnableMotor[0] = true;
//pGen6DOF.TranslationalLimitMotor.TargetVelocity = new Vector3(5, 0, 0);
//pGen6DOF.TranslationalLimitMotor.MaxMotorForce = new Vector3(0.1f, 0, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(0, (float)Math.PI * 0.9f, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(0, -(float)Math.PI * 0.9f, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(0, 0, -(float)Math.PI);
//pGen6DOF.AngularUpperLimit = new Vector3(0, 0, (float)Math.PI);
pGen6DOF.AngularLowerLimit = new Vector3(-(float)Math.PI / 4, -0.75f, -(float)Math.PI * 0.4f);
pGen6DOF.AngularUpperLimit = new Vector3((float)Math.PI / 4, 0.75f, (float)Math.PI * 0.4f);
//pGen6DOF.AngularLowerLimit = new Vector3(0, -0.75f, (float)Math.PI * 0.8f);
//pGen6DOF.AngularUpperLimit = new Vector3(0, 0.75f, -(float)Math.PI * 0.8f);
//pGen6DOF.AngularLowerLimit = new Vector3(0, -(float)Math.PI * 0.8f, (float)Math.PI * 1.98f);
//pGen6DOF.AngularUpperLimit = new Vector3(0, (float)Math.PI * 0.8f, -(float)Math.PI * 1.98f);
//pGen6DOF.AngularLowerLimit = new Vector3(-0.75f, -0.5f, -0.5f);
//pGen6DOF.AngularUpperLimit = new Vector3(0.75f, 0.5f, 0.5f);
//pGen6DOF.AngularLowerLimit = new Vector3(-0.75f, 0, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(0.75f, 0, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(0, -0.7f, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(0, 0.7f, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(-1, 0, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(1, 0, 0);
// create a ConeTwist constraint
pBodyA = LocalCreateRigidBody(1.0f, Matrix.Translation(-10, 5, 0), shape);
//pBodyA = LocalCreateRigidBody(0, Matrix.Translation(-10, 5, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
pBodyB = LocalCreateRigidBody(0, Matrix.Translation(-10, -5, 0), shape);
//pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(-10, -5, 0), shape);
frameInA = Matrix.RotationYawPitchRoll(0, 0, (float)Math.PI / 2);
frameInA *= Matrix.Translation(0, -5, 0);
frameInB = Matrix.RotationYawPitchRoll(0, 0, (float)Math.PI / 2);
frameInB *= Matrix.Translation(0, 5, 0);
coneTwist = new ConeTwistConstraint(pBodyA, pBodyB, frameInA, frameInB);
//coneTwist.SetLimit((float)Math.PI / 4, (float)Math.PI / 4, (float)Math.PI * 0.8f);
//coneTwist.SetLimit((((float)Math.PI / 4) * 0.6f), (float)Math.PI / 4, (float)Math.PI * 0.8f, 1.0f); // soft limit == hard limit
coneTwist.SetLimit((((float)Math.PI / 4) * 0.6f), (float)Math.PI / 4, (float)Math.PI * 0.8f, 0.5f);
World.AddConstraint(coneTwist, true);
coneTwist.DebugDrawSize = 5;
// Hinge connected to the world, with motor (to hinge motor with new and old constraint solver)
RigidBody pBody = LocalCreateRigidBody(1.0f, Matrix.Identity, shape);
pBody.ActivationState = ActivationState.DisableDeactivation;
Vector3 pivotA = new Vector3(10.0f, 0.0f, 0.0f);
btAxisA = new Vector3(0.0f, 0.0f, 1.0f);
HingeConstraint pHinge = new HingeConstraint(pBody, pivotA, btAxisA);
//pHinge.EnableAngularMotor(true, -1.0f, 0.165f); // use for the old solver
pHinge.EnableAngularMotor(true, -1.0f, 1.65f); // use for the new SIMD solver
World.AddConstraint(pHinge);
pHinge.DebugDrawSize = 5;
// create a universal joint using generic 6DOF constraint
// create two rigid bodies
// static bodyA (parent) on top:
pBodyA = LocalCreateRigidBody(0, Matrix.Translation(20, 4, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
// dynamic bodyB (child) below it :
pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(20, 0, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
// add some (arbitrary) data to build constraint frames
Vector3 parentAxis = new Vector3(1, 0, 0);
Vector3 childAxis = new Vector3(0, 0, 1);
Vector3 anchor = new Vector3(20, 2, 0);
UniversalConstraint pUniv = new UniversalConstraint(pBodyA, pBodyB, anchor, parentAxis, childAxis);
pUniv.SetLowerLimit(-(float)Math.PI / 4, -(float)Math.PI / 4);
pUniv.SetUpperLimit((float)Math.PI / 4, (float)Math.PI / 4);
// add constraint to world
World.AddConstraint(pUniv, true);
// draw constraint frames and limits for debugging
pUniv.DebugDrawSize = 5;
World.AddConstraint(pGen6DOF, true);
pGen6DOF.DebugDrawSize = 5;
// create a generic 6DOF constraint with springs
pBodyA = LocalCreateRigidBody(0, Matrix.Translation(-20, 16, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(-10, 16, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
frameInA = Matrix.Translation(10, 0, 0);
frameInB = Matrix.Identity;
Generic6DofSpringConstraint pGen6DOFSpring = new Generic6DofSpringConstraint(pBodyA, pBodyB, frameInA, frameInB, true)
{
LinearUpperLimit = new Vector3(5, 0, 0),
LinearLowerLimit = new Vector3(-5, 0, 0),
AngularLowerLimit = new Vector3(0, 0, -1.5f),
AngularUpperLimit = new Vector3(0, 0, 1.5f),
DebugDrawSize = 5
};
World.AddConstraint(pGen6DOFSpring, true);
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();
// create a Hinge2 joint
// create two rigid bodies
// static bodyA (parent) on top:
pBodyA = LocalCreateRigidBody(0, Matrix.Translation(-20, 4, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
// dynamic bodyB (child) below it :
pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(-20, 0, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
// add some data to build constraint frames
parentAxis = new Vector3(0, 1, 0);
childAxis = new Vector3(1, 0, 0);
anchor = new Vector3(-20, 0, 0);
Hinge2Constraint pHinge2 = new Hinge2Constraint(pBodyA, pBodyB, anchor, parentAxis, childAxis);
pHinge2.SetLowerLimit(-(float)Math.PI / 4);
pHinge2.SetUpperLimit((float)Math.PI / 4);
// add constraint to world
World.AddConstraint(pHinge2, true);
// draw constraint frames and limits for debugging
pHinge2.DebugDrawSize = 5;
// create a Hinge joint between two dynamic bodies
// create two rigid bodies
// static bodyA (parent) on top:
pBodyA = LocalCreateRigidBody(1.0f, Matrix.Translation(-20, -2, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
// dynamic bodyB:
pBodyB = LocalCreateRigidBody(10.0f, Matrix.Translation(-30, -2, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
// add some data to build constraint frames
axisA = new Vector3(0, 1, 0);
axisB = new Vector3(0, 1, 0);
Vector3 pivotA2 = new Vector3(-5, 0, 0);
Vector3 pivotB = new Vector3(5, 0, 0);
spHingeDynAB = new HingeConstraint(pBodyA, pBodyB, pivotA2, pivotB, axisA, axisB);
spHingeDynAB.SetLimit(-(float)Math.PI / 4, (float)Math.PI / 4);
// add constraint to world
World.AddConstraint(spHingeDynAB, true);
// draw constraint frames and limits for debugging
spHingeDynAB.DebugDrawSize = 5;
}
public override void InitializeDemo()
{
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 (ball socket)
//SEEMS OK
{
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;
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
#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(Quaternion.CreateFromAxisAngle(sliderAxis.ToVector3(), 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.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, MathUtil.SIMD_QUARTER_PI, MathUtil.SIMD_PI * 0.8f, 1.0f, 0.3f, 1.0f); // 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
}
public Physics()
{
SetupEmptyDynamicsWorld();
CollisionShape groundShape = new BoxShape(50, 1, 50);
//CollisionShape groundShape = new StaticPlaneShape(Vector3.UnitY, 40);
CollisionShapes.Add(groundShape);
RigidBody body = LocalCreateRigidBody(0, Matrix.Translation(0, -16, 0), groundShape);
body.UserObject = "Ground";
CollisionShape shape = new BoxShape(new Vector3(CubeHalfExtents));
CollisionShapes.Add(shape);
float mass = 1.0f;
RigidBody body0 = LocalCreateRigidBody(mass, Matrix.Translation(0, 20, 0), shape);
RigidBody body1 = null;//LocalCreateRigidBody(mass, Matrix.Translation(2*CUBE_HALF_EXTENTS,20,0), shape);
//RigidBody body1 = LocalCreateRigidBody(0, Matrix.Translation(2*CUBE_HALF_EXTENTS,20,0), null);
//body1.ActivationState = ActivationState.DisableDeactivation;
//body1.SetDamping(0.3f, 0.3f);
Vector3 pivotInA = new Vector3(CubeHalfExtents, -CubeHalfExtents, -CubeHalfExtents);
Vector3 axisInA = new Vector3(0, 0, 1);
Vector3 pivotInB;
if (body1 != null)
{
Matrix transform = Matrix.Invert(body1.CenterOfMassTransform) * body0.CenterOfMassTransform;
pivotInB = Vector3.TransformCoordinate(pivotInA, transform);
}
else
{
pivotInB = pivotInA;
}
Vector3 axisInB;
if (body1 != null)
{
Matrix transform = Matrix.Invert(body1.CenterOfMassTransform) * body1.CenterOfMassTransform;
axisInB = Vector3.TransformCoordinate(axisInA, transform);
}
else
{
axisInB = Vector3.TransformCoordinate(axisInA, body0.CenterOfMassTransform);
}
if (P2P)
{
TypedConstraint p2p = new Point2PointConstraint(body0, pivotInA);
//TypedConstraint p2p = new Point2PointConstraint(body0,body1,pivotInA,pivotInB);
//TypedConstraint hinge = new HingeConstraint(body0,body1,pivotInA,pivotInB,axisInA,axisInB);
World.AddConstraint(p2p);
p2p.DebugDrawSize = 5;
}
else
{
HingeConstraint hinge = new HingeConstraint(body0, pivotInA, axisInA);
//use zero targetVelocity and a small maxMotorImpulse to simulate joint friction
//float targetVelocity = 0.f;
//float maxMotorImpulse = 0.01;
float targetVelocity = 1.0f;
float maxMotorImpulse = 1.0f;
hinge.EnableAngularMotor(true, targetVelocity, maxMotorImpulse);
World.AddConstraint(hinge);
hinge.DebugDrawSize = 5;
}
//create a slider, using the generic D6 constraint
Vector3 sliderWorldPos = new Vector3(0, 10, 0);
Vector3 sliderAxis = Vector3.UnitX;
float angle = 0;//SIMD_RADS_PER_DEG * 10.f;
Matrix trans = Matrix.RotationAxis(sliderAxis, angle) * Matrix.Translation(sliderWorldPos);
d6body0 = LocalCreateRigidBody(mass, trans, shape);
d6body0.ActivationState = ActivationState.DisableDeactivation;
RigidBody fixedBody1 = LocalCreateRigidBody(0, trans, null);
World.AddRigidBody(fixedBody1);
Matrix frameInA = Matrix.Translation(0, 5, 0);
Matrix frameInB = Matrix.Translation(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, frameInA, frameInB, useLinearReferenceFrameA);
spSlider6Dof.LinearLowerLimit = lowerSliderLimit;
spSlider6Dof.LinearUpperLimit = hiSliderLimit;
//range should be small, otherwise singularities will 'explode' the constraint
//spSlider6Dof.AngularLowerLimit = new Vector3(-1.5f,0,0);
//spSlider6Dof.AngularUpperLimit = new Vector3(1.5f,0,0);
//spSlider6Dof.AngularLowerLimit = new Vector3(0,0,0);
//spSlider6Dof.AngularUpperLimit = new Vector3(0,0,0);
spSlider6Dof.AngularLowerLimit = new Vector3((float)-Math.PI, 0, 0);
spSlider6Dof.AngularUpperLimit = new Vector3(1.5f, 0, 0);
spSlider6Dof.TranslationalLimitMotor.EnableMotor[0] = true;
spSlider6Dof.TranslationalLimitMotor.TargetVelocity = new Vector3(-5.0f, 0, 0);
spSlider6Dof.TranslationalLimitMotor.MaxMotorForce = new Vector3(0.1f, 0, 0);
World.AddConstraint(spSlider6Dof);
spSlider6Dof.DebugDrawSize = 5;
// create a door using hinge constraint attached to the world
CollisionShape pDoorShape = new BoxShape(2.0f, 5.0f, 0.2f);
CollisionShapes.Add(pDoorShape);
RigidBody pDoorBody = LocalCreateRigidBody(1.0f, Matrix.Translation(-5.0f, -2.0f, 0.0f), pDoorShape);
pDoorBody.ActivationState = ActivationState.DisableDeactivation;
Vector3 btPivotA = new Vector3(10.0f + 2.1f, -2.0f, 0.0f); // right next to the door slightly outside
Vector3 btAxisA = Vector3.UnitY; // pointing upwards, aka Y-axis
spDoorHinge = new HingeConstraint(pDoorBody, btPivotA, btAxisA);
//spDoorHinge.SetLimit(0.0f, (float)Math.PI / 2);
// test problem values
//spDoorHinge.SetLimit(-(float)Math.PI, (float)Math.PI * 0.8f);
//spDoorHinge.SetLimit(1, -1);
//spDoorHinge.SetLimit(-(float)Math.PI * 0.8f, (float)Math.PI);
//spDoorHinge.SetLimit(-(float)Math.PI * 0.8f, (float)Math.PI, 0.9f, 0.3f, 0.0f);
//spDoorHinge.SetLimit(-(float)Math.PI * 0.8f, (float)Math.PI, 0.9f, 0.01f, 0.0f); // "sticky limits"
spDoorHinge.SetLimit(-(float)Math.PI * 0.25f, (float)Math.PI * 0.25f);
//spDoorHinge.SetLimit(0, 0);
World.AddConstraint(spDoorHinge);
spDoorHinge.DebugDrawSize = 5;
RigidBody pDropBody = LocalCreateRigidBody(10.0f, Matrix.Translation(-5.0f, 2.0f, 0.0f), shape);
// create a generic 6DOF constraint
//RigidBody pBodyA = LocalCreateRigidBody(mass, Matrix.Translation(10.0f, 6.0f, 0), shape);
RigidBody pBodyA = LocalCreateRigidBody(0, Matrix.Translation(10, 6, 0), shape);
//RigidBody pBodyA = LocalCreateRigidBody(0, Matrix.Translation(10, 6, 0), null);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
RigidBody pBodyB = LocalCreateRigidBody(mass, Matrix.Translation(0, 6, 0), shape);
//RigidBody pBodyB = LocalCreateRigidBody(0, Matrix.Translation(0, 6, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
frameInA = Matrix.Translation(-5, 0, 0);
frameInB = Matrix.Translation(5, 0, 0);
Generic6DofConstraint pGen6DOF = new Generic6DofConstraint(pBodyA, pBodyB, frameInA, frameInB, true);
//Generic6DofConstraint pGen6DOF = new Generic6DofConstraint(pBodyA, pBodyB, frameInA, frameInB, false);
pGen6DOF.LinearLowerLimit = new Vector3(-10, -2, -1);
pGen6DOF.LinearUpperLimit = new Vector3(10, 2, 1);
//pGen6DOF.LinearLowerLimit = new Vector3(-10, 0, 0);
//pGen6DOF.LinearUpperLimit = new Vector3(10, 0, 0);
//pGen6DOF.LinearLowerLimit = new Vector3(0, 0, 0);
//pGen6DOF.LinearUpperLimit = new Vector3(0, 0, 0);
//pGen6DOF.TranslationalLimitMotor.EnableMotor[0] = true;
//pGen6DOF.TranslationalLimitMotor.TargetVelocity = new Vector3(5, 0, 0);
//pGen6DOF.TranslationalLimitMotor.MaxMotorForce = new Vector3(0.1f, 0, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(0, (float)Math.PI * 0.9f, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(0, -(float)Math.PI * 0.9f, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(0, 0, -(float)Math.PI);
//pGen6DOF.AngularUpperLimit = new Vector3(0, 0, (float)Math.PI);
pGen6DOF.AngularLowerLimit = new Vector3(-(float)Math.PI / 4, -0.75f, -(float)Math.PI * 0.4f);
pGen6DOF.AngularUpperLimit = new Vector3((float)Math.PI / 4, 0.75f, (float)Math.PI * 0.4f);
//pGen6DOF.AngularLowerLimit = new Vector3(0, -0.75f, (float)Math.PI * 0.8f);
//pGen6DOF.AngularUpperLimit = new Vector3(0, 0.75f, -(float)Math.PI * 0.8f);
//pGen6DOF.AngularLowerLimit = new Vector3(0, -(float)Math.PI * 0.8f, (float)Math.PI * 1.98f);
//pGen6DOF.AngularUpperLimit = new Vector3(0, (float)Math.PI * 0.8f, -(float)Math.PI * 1.98f);
//pGen6DOF.AngularLowerLimit = new Vector3(-0.75f, -0.5f, -0.5f);
//pGen6DOF.AngularUpperLimit = new Vector3(0.75f, 0.5f, 0.5f);
//pGen6DOF.AngularLowerLimit = new Vector3(-0.75f, 0, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(0.75f, 0, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(0, -0.7f, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(0, 0.7f, 0);
//pGen6DOF.AngularLowerLimit = new Vector3(-1, 0, 0);
//pGen6DOF.AngularUpperLimit = new Vector3(1, 0, 0);
// create a ConeTwist constraint
pBodyA = LocalCreateRigidBody(1.0f, Matrix.Translation(-10, 5, 0), shape);
//pBodyA = LocalCreateRigidBody(0, Matrix.Translation(-10, 5, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
pBodyB = LocalCreateRigidBody(0, Matrix.Translation(-10, -5, 0), shape);
//pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(-10, -5, 0), shape);
frameInA = Matrix.RotationYawPitchRoll(0, 0, (float)Math.PI / 2);
frameInA *= Matrix.Translation(0, -5, 0);
frameInB = Matrix.RotationYawPitchRoll(0, 0, (float)Math.PI / 2);
frameInB *= Matrix.Translation(0, 5, 0);
coneTwist = new ConeTwistConstraint(pBodyA, pBodyB, frameInA, frameInB);
//coneTwist.SetLimit((float)Math.PI / 4, (float)Math.PI / 4, (float)Math.PI * 0.8f);
//coneTwist.SetLimit((((float)Math.PI / 4) * 0.6f), (float)Math.PI / 4, (float)Math.PI * 0.8f, 1.0f); // soft limit == hard limit
coneTwist.SetLimit((((float)Math.PI / 4) * 0.6f), (float)Math.PI / 4, (float)Math.PI * 0.8f, 0.5f);
World.AddConstraint(coneTwist, true);
coneTwist.DebugDrawSize = 5;
// Hinge connected to the world, with motor (to hinge motor with new and old constraint solver)
RigidBody pBody = LocalCreateRigidBody(1.0f, Matrix.Identity, shape);
pBody.ActivationState = ActivationState.DisableDeactivation;
Vector3 PivotA = new Vector3(10.0f, 0.0f, 0.0f);
btAxisA = new Vector3(0.0f, 0.0f, 1.0f);
HingeConstraint pHinge = new HingeConstraint(pBody, btPivotA, btAxisA);
//pHinge.EnableAngularMotor(true, -1.0f, 0.165f); // use for the old solver
pHinge.EnableAngularMotor(true, -1.0f, 1.65f); // use for the new SIMD solver
World.AddConstraint(pHinge);
pHinge.DebugDrawSize = 5;
// create a universal joint using generic 6DOF constraint
// create two rigid bodies
// static bodyA (parent) on top:
pBodyA = LocalCreateRigidBody(0, Matrix.Translation(20, 4, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
// dynamic bodyB (child) below it :
pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(20, 0, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
// add some (arbitrary) data to build constraint frames
Vector3 parentAxis = new Vector3(1, 0, 0);
Vector3 childAxis = new Vector3(0, 0, 1);
Vector3 anchor = new Vector3(20, 2, 0);
UniversalConstraint pUniv = new UniversalConstraint(pBodyA, pBodyB, anchor, parentAxis, childAxis);
pUniv.SetLowerLimit(-(float)Math.PI / 4, -(float)Math.PI / 4);
pUniv.SetUpperLimit((float)Math.PI / 4, (float)Math.PI / 4);
// add constraint to world
World.AddConstraint(pUniv, true);
// draw constraint frames and limits for debugging
pUniv.DebugDrawSize = 5;
World.AddConstraint(pGen6DOF, true);
pGen6DOF.DebugDrawSize = 5;
// create a generic 6DOF constraint with springs
pBodyA = LocalCreateRigidBody(0, Matrix.Translation(-20, 16, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(-10, 16, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
frameInA = Matrix.Translation(10, 0, 0);
frameInB = Matrix.Identity;
Generic6DofSpringConstraint pGen6DOFSpring = new Generic6DofSpringConstraint(pBodyA, pBodyB, frameInA, frameInB, true);
pGen6DOFSpring.LinearUpperLimit = new Vector3(5, 0, 0);
pGen6DOFSpring.LinearLowerLimit = new Vector3(-5, 0, 0);
pGen6DOFSpring.AngularLowerLimit = new Vector3(0, 0, -1.5f);
pGen6DOFSpring.AngularUpperLimit = new Vector3(0, 0, 1.5f);
World.AddConstraint(pGen6DOFSpring, true);
pGen6DOFSpring.DebugDrawSize = 5;
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();
// create a Hinge2 joint
// create two rigid bodies
// static bodyA (parent) on top:
pBodyA = LocalCreateRigidBody(0, Matrix.Translation(-20, 4, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
// dynamic bodyB (child) below it :
pBodyB = LocalCreateRigidBody(1.0f, Matrix.Translation(-20, 0, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
// add some data to build constraint frames
parentAxis = new Vector3(0, 1, 0);
childAxis = new Vector3(1, 0, 0);
anchor = new Vector3(-20, 0, 0);
Hinge2Constraint pHinge2 = new Hinge2Constraint(pBodyA, pBodyB, anchor, parentAxis, childAxis);
pHinge2.SetLowerLimit(-(float)Math.PI / 4);
pHinge2.SetUpperLimit((float)Math.PI / 4);
// add constraint to world
World.AddConstraint(pHinge2, true);
// draw constraint frames and limits for debugging
pHinge2.DebugDrawSize = 5;
// create a Hinge joint between two dynamic bodies
// create two rigid bodies
// static bodyA (parent) on top:
pBodyA = LocalCreateRigidBody(1.0f, Matrix.Translation(-20, -2, 0), shape);
pBodyA.ActivationState = ActivationState.DisableDeactivation;
// dynamic bodyB:
pBodyB = LocalCreateRigidBody(10.0f, Matrix.Translation(-30, -2, 0), shape);
pBodyB.ActivationState = ActivationState.DisableDeactivation;
// add some data to build constraint frames
Vector3 axisA = new Vector3(0, 1, 0);
Vector3 axisB = new Vector3(0, 1, 0);
Vector3 pivotA = new Vector3(-5, 0, 0);
Vector3 pivotB = new Vector3(5, 0, 0);
spHingeDynAB = new HingeConstraint(pBodyA, pBodyB, pivotA, pivotB, axisA, axisB);
spHingeDynAB.SetLimit(-(float)Math.PI / 4, (float)Math.PI / 4);
// add constraint to world
World.AddConstraint(spHingeDynAB, true);
// draw constraint frames and limits for debugging
spHingeDynAB.DebugDrawSize = 5;
}
