public BSConstraintHinge(BulletWorld world, BulletBody obj1, BulletBody obj2,
Vector3 pivotInA, Vector3 pivotInB,
Vector3 axisInA, Vector3 axisInB,
bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
: base(world)
{
m_body1 = obj1;
m_body2 = obj2;
m_constraint = PhysicsScene.PE.CreateHingeConstraint(world, obj1, obj2,
pivotInA, pivotInB, axisInA, axisInB,
useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
m_enabled = true;
}
// Create a btGeneric6DofConstraint
public BSConstraint6Dof(BulletWorld world, BulletBody obj1, BulletBody obj2,
Vector3 frame1, Quaternion frame1rot,
Vector3 frame2, Quaternion frame2rot,
bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
: base(world)
{
m_body1 = obj1;
m_body2 = obj2;
m_constraint = PhysicsScene.PE.Create6DofConstraint(m_world, m_body1, m_body2,
frame1, frame1rot,
frame2, frame2rot,
useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
m_enabled = true;
world.physicsScene.DetailLog(
"{0},BS6DofConstraint,createFrame,wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
BSScene.DetailLogZero, world.worldID,
obj1.ID, obj1.AddrString, obj2.ID, obj2.AddrString);
}
// 6 Dof constraint based on a midpoint between the two constrained bodies
public BSConstraint6Dof(BulletWorld world, BulletBody obj1, BulletBody obj2,
Vector3 joinPoint,
bool useLinearReferenceFrameA, bool disableCollisionsBetweenLinkedBodies)
: base(world)
{
m_body1 = obj1;
m_body2 = obj2;
if (!obj1.HasPhysicalBody || !obj2.HasPhysicalBody)
{
world.physicsScene.DetailLog(
"{0},BS6DOFConstraint,badBodyPtr,wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
BSScene.DetailLogZero, world.worldID,
obj1.ID, obj1.AddrString, obj2.ID, obj2.AddrString);
world.physicsScene.Logger.ErrorFormat(
"{0} Attempt to build 6DOF constraint with missing bodies: wID={1}, rID={2}, rBody={3}, cID={4}, cBody={5}",
LogHeader, world.worldID, obj1.ID, obj1.AddrString, obj2.ID, obj2.AddrString);
m_enabled = false;
}
else
{
m_constraint = PhysicsScene.PE.Create6DofConstraintToPoint(m_world, m_body1, m_body2,
joinPoint,
useLinearReferenceFrameA, disableCollisionsBetweenLinkedBodies);
PhysicsScene.DetailLog(
"{0},BS6DofConstraint,createMidPoint,wID={1}, csrt={2}, rID={3}, rBody={4}, cID={5}, cBody={6}",
BSScene.DetailLogZero, world.worldID, m_constraint.AddrString,
obj1.ID, obj1.AddrString, obj2.ID, obj2.AddrString);
if (!m_constraint.HasPhysicalConstraint)
{
world.physicsScene.Logger.ErrorFormat(
"{0} Failed creation of 6Dof constraint. rootID={1}, childID={2}",
LogHeader, obj1.ID, obj2.ID);
m_enabled = false;
}
else
{
m_enabled = true;
}
}
}
// Remove all constraints that reference the passed body.
// Return 'true' if any constraints were destroyed.
public bool RemoveAndDestroyConstraint(BulletBody body1)
{
List<BSConstraint> toRemove = new List<BSConstraint>();
uint lookingID = body1.ID;
lock (m_constraints)
{
foreach (BSConstraint constrain in m_constraints)
{
if (constrain.Body1.ID == lookingID || constrain.Body2.ID == lookingID)
{
toRemove.Add(constrain);
}
}
foreach (BSConstraint constrain in toRemove)
{
m_constraints.Remove(constrain);
constrain.Dispose();
}
}
return (toRemove.Count > 0);
}
public abstract bool WantsSleeping(BulletBody obj);
public abstract void UpdateInertiaTensor(BulletBody obj);
public abstract void Translate(BulletBody obj, Vector3 trans);
public abstract void SetTranslation(BulletBody obj, Vector3 position, Quaternion rotation);
public abstract void SetRestitution(BulletBody obj, float val);
public abstract void SetGravity(BulletBody obj, Vector3 val);
public abstract void SetDeactivationTime(BulletBody obj, float dtime);
public abstract void SetDamping(BulletBody obj, float lin_damping, float ang_damping);
public abstract void SetContactProcessingThreshold(BulletBody obj, float val);
public abstract void SetCollisionShape(BulletWorld sim, BulletBody obj, BulletShape shape);
public abstract bool SetCollisionGroupMask(BulletBody body, UInt32 filter, UInt32 mask);
public abstract void SetMassProps(BulletBody obj, float mass, Vector3 inertia);
// Set the force being applied to the object as if its mass is one. public abstract void SetObjectForce(BulletBody obj, Vector3 force);
public abstract void SetHitFraction(BulletBody obj, float val);
public abstract void SetSleepingThresholds(BulletBody obj, float lin_threshold, float ang_threshold);
// public abstract IntPtr GetBroadphaseHandle(BulletBody obj); // public abstract void SetBroadphaseHandle(BulletBody obj, IntPtr handle); public abstract void SetInterpolationLinearVelocity(BulletBody obj, Vector3 vel);
public abstract void SetUserPointer(BulletBody obj, IntPtr val);
public abstract void SetInterpolationVelocity(BulletBody obj, Vector3 linearVel, Vector3 angularVel);
public abstract void UpdateDeactivation(BulletBody obj, float timeStep);
public abstract void SetInvInertiaDiagLocal(BulletBody obj, Vector3 inert);
// ===================================================================================== // btCollisionWorld entries public abstract void UpdateSingleAabb(BulletWorld world, BulletBody obj);
public abstract void SetLinearDamping(BulletBody obj, float lin_damping);
// Remove any constraint between the passed bodies.
// Presumed there is only one such constraint possible.
// Return 'true' if a constraint was found and destroyed.
public bool RemoveAndDestroyConstraint(BulletBody body1, BulletBody body2)
{
bool ret = false;
lock (m_constraints)
{
BSConstraint constrain;
if (this.TryGetConstraint(body1, body2, out constrain))
{
// remove the constraint from our collection
ret = RemoveAndDestroyConstraint(constrain);
}
}
return ret;
}
public abstract void SetLinearFactor(BulletBody obj, Vector3 factor);
// Get the constraint between two bodies. There can be only one.
// Return 'true' if a constraint was found.
public bool TryGetConstraint(BulletBody body1, BulletBody body2, out BSConstraint returnConstraint)
{
bool found = false;
BSConstraint foundConstraint = null;
uint lookingID1 = body1.ID;
uint lookingID2 = body2.ID;
lock (m_constraints)
{
foreach (BSConstraint constrain in m_constraints)
{
if ((constrain.Body1.ID == lookingID1 && constrain.Body2.ID == lookingID2)
|| (constrain.Body1.ID == lookingID2 && constrain.Body2.ID == lookingID1))
{
foundConstraint = constrain;
found = true;
break;
}
}
}
returnConstraint = foundConstraint;
return found;
}
public abstract void SetLinearVelocity(BulletBody obj, Vector3 val);