public bool TryGetLinkInfo(BSPrimLinkable child, out BSLinkInfo foundInfo)
{
bool ret = false;
BSLinkInfo found = null;
lock (m_linksetActivityLock)
{
ret = m_children.TryGetValue(child, out found);
}
foundInfo = found;
return(ret);
}
public bool TryGetLinkInfo(BSPrimLinkable child, out BSLinkInfo foundInfo)
{
m_linksetActivityLock.AcquireReaderLock(-1);
try
{
return(m_children.TryGetValue(child, out foundInfo));
}
finally
{
m_linksetActivityLock.ReleaseReaderLock();
}
}
public bool TryGetLinkInfo(BSPrimLinkable child, out BSLinkInfo foundInfo)
{
bool ret = false;
BSLinkInfo found = null;
m_linksetActivityLock.AcquireReaderLock(-1);
try
{
ret = m_children.TryGetValue(child, out found);
}
finally
{
m_linksetActivityLock.ReleaseReaderLock();
}
foundInfo = found;
return(ret);
}
// Create a static constraint between the two passed objects
private BSConstraint BuildConstraint(BSPrimLinkable rootPrim, BSLinkInfo li)
{
BSLinkInfoConstraint linkInfo = li as BSLinkInfoConstraint;
if (linkInfo == null)
return null;
// Zero motion for children so they don't interpolate
li.member.ZeroMotion(true);
BSConstraint constrain = null;
switch (linkInfo.constraintType)
{
case ConstraintType.BS_FIXED_CONSTRAINT_TYPE:
case ConstraintType.D6_CONSTRAINT_TYPE:
// Relative position normalized to the root prim
// Essentually a vector pointing from center of rootPrim to center of li.member
OMV.Vector3 childRelativePosition = linkInfo.member.Position - rootPrim.Position;
// real world coordinate of midpoint between the two objects
OMV.Vector3 midPoint = rootPrim.Position + (childRelativePosition / 2);
DetailLog("{0},BSLinksetConstraint.BuildConstraint,6Dof,rBody={1},cBody={2},rLoc={3},cLoc={4},midLoc={5}",
rootPrim.LocalID, rootPrim.PhysBody, linkInfo.member.PhysBody,
rootPrim.Position, linkInfo.member.Position, midPoint);
// create a constraint that allows no freedom of movement between the two objects
// http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
constrain = new BSConstraint6Dof(
m_physicsScene.World, rootPrim.PhysBody, linkInfo.member.PhysBody, midPoint, true, true );
/* NOTE: below is an attempt to build constraint with full frame computation, etc.
* Using the midpoint is easier since it lets the Bullet code manipulate the transforms
* of the objects.
* Code left for future programmers.
// ==================================================================================
// relative position normalized to the root prim
OMV.Quaternion invThisOrientation = OMV.Quaternion.Inverse(rootPrim.Orientation);
OMV.Vector3 childRelativePosition = (liConstraint.member.Position - rootPrim.Position) * invThisOrientation;
// relative rotation of the child to the parent
OMV.Quaternion childRelativeRotation = invThisOrientation * liConstraint.member.Orientation;
OMV.Quaternion inverseChildRelativeRotation = OMV.Quaternion.Inverse(childRelativeRotation);
DetailLog("{0},BSLinksetConstraint.PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, liConstraint.member.LocalID);
constrain = new BS6DofConstraint(
PhysicsScene.World, rootPrim.Body, liConstraint.member.Body,
OMV.Vector3.Zero,
OMV.Quaternion.Inverse(rootPrim.Orientation),
OMV.Vector3.Zero,
OMV.Quaternion.Inverse(liConstraint.member.Orientation),
true,
true
);
// ==================================================================================
*/
break;
case ConstraintType.D6_SPRING_CONSTRAINT_TYPE:
constrain = new BSConstraintSpring(m_physicsScene.World, rootPrim.PhysBody, linkInfo.member.PhysBody,
linkInfo.frameInAloc, linkInfo.frameInArot, linkInfo.frameInBloc, linkInfo.frameInBrot,
linkInfo.useLinearReferenceFrameA,
true /*disableCollisionsBetweenLinkedBodies*/);
DetailLog("{0},BSLinksetConstraint.BuildConstraint,spring,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6}",
rootPrim.LocalID,
rootPrim.LocalID, rootPrim.PhysBody.AddrString,
linkInfo.member.LocalID, linkInfo.member.PhysBody.AddrString,
rootPrim.Position, linkInfo.member.Position);
break;
default:
break;
}
linkInfo.SetLinkParameters(constrain);
m_physicsScene.Constraints.AddConstraint(constrain);
return constrain;
}
public bool TryGetLinkInfo(BSPrimLinkable child, out BSLinkInfo foundInfo)
{
m_linksetActivityLock.AcquireReaderLock(-1);
try
{
return m_children.TryGetValue(child, out foundInfo);
}
finally
{
m_linksetActivityLock.ReleaseReaderLock();
}
}
public bool TryGetLinkInfo(BSPrimLinkable child, out BSLinkInfo foundInfo)
{
bool ret = false;
BSLinkInfo found = null;
lock (m_linksetActivityLock)
{
ret = m_children.TryGetValue(child, out found);
}
foundInfo = found;
return ret;
}
public override object Extension(string pFunct, params object[] pParams)
{
object ret = null;
switch (pFunct)
{
// pParams = [ BSPhysObject root, BSPhysObject child, integer linkType ]
case ExtendedPhysics.PhysFunctChangeLinkType:
if (pParams.Length > 2)
{
int requestedType = (int)pParams[2];
DetailLog("{0},BSLinksetConstraint.ChangeLinkType,requestedType={1}", LinksetRoot.LocalID, requestedType);
if (requestedType == (int)ConstraintType.BS_FIXED_CONSTRAINT_TYPE ||
requestedType == (int)ConstraintType.D6_CONSTRAINT_TYPE ||
requestedType == (int)ConstraintType.D6_SPRING_CONSTRAINT_TYPE ||
requestedType == (int)ConstraintType.HINGE_CONSTRAINT_TYPE ||
requestedType == (int)ConstraintType.CONETWIST_CONSTRAINT_TYPE ||
requestedType == (int)ConstraintType.SLIDER_CONSTRAINT_TYPE)
{
BSPrimLinkable child = pParams[1] as BSPrimLinkable;
if (child != null)
{
DetailLog("{0},BSLinksetConstraint.ChangeLinkType,rootID={1},childID={2},type={3}",
LinksetRoot.LocalID, LinksetRoot.LocalID, child.LocalID, requestedType);
m_physicsScene.TaintedObject(child.LocalID, "BSLinksetConstraint.PhysFunctChangeLinkType", delegate()
{
// Pick up all the constraints currently created.
RemoveDependencies(child);
BSLinkInfo linkInfo = null;
if (TryGetLinkInfo(child, out linkInfo))
{
BSLinkInfoConstraint linkInfoC = linkInfo as BSLinkInfoConstraint;
if (linkInfoC != null)
{
linkInfoC.constraintType = (ConstraintType)requestedType;
ret = (object)true;
DetailLog("{0},BSLinksetConstraint.ChangeLinkType,link={1},type={2}",
linkInfo.member.LocalID, linkInfo.member.LocalID, linkInfoC.constraintType);
}
else
{
DetailLog("{0},BSLinksetConstraint.ChangeLinkType,linkInfoNotConstraint,childID={1}", LinksetRoot.LocalID, child.LocalID);
}
}
else
{
DetailLog("{0},BSLinksetConstraint.ChangeLinkType,noLinkInfoForChild,childID={1}", LinksetRoot.LocalID, child.LocalID);
}
// Cause the whole linkset to be rebuilt in post-taint time.
Refresh(child);
});
}
else
{
DetailLog("{0},BSLinksetConstraint.SetLinkType,childNotBSPrimLinkable", LinksetRoot.LocalID);
}
}
else
{
DetailLog("{0},BSLinksetConstraint.SetLinkType,illegalRequestedType,reqested={1},spring={2}",
LinksetRoot.LocalID, requestedType, ((int)ConstraintType.D6_SPRING_CONSTRAINT_TYPE));
}
}
break;
// pParams = [ BSPhysObject root, BSPhysObject child ]
case ExtendedPhysics.PhysFunctGetLinkType:
if (pParams.Length > 0)
{
BSPrimLinkable child = pParams[1] as BSPrimLinkable;
if (child != null)
{
BSLinkInfo linkInfo = null;
if (TryGetLinkInfo(child, out linkInfo))
{
BSLinkInfoConstraint linkInfoC = linkInfo as BSLinkInfoConstraint;
if (linkInfoC != null)
{
ret = (object)(int)linkInfoC.constraintType;
DetailLog("{0},BSLinksetConstraint.GetLinkType,link={1},type={2}",
linkInfo.member.LocalID, linkInfo.member.LocalID, linkInfoC.constraintType);
}
}
}
}
break;
// pParams = [ BSPhysObject root, BSPhysObject child, int op, object opParams, int op, object opParams, ... ]
case ExtendedPhysics.PhysFunctChangeLinkParams:
// There should be two parameters: the childActor and a list of parameters to set
if (pParams.Length > 2)
{
BSPrimLinkable child = pParams[1] as BSPrimLinkable;
BSLinkInfo baseLinkInfo = null;
if (TryGetLinkInfo(child, out baseLinkInfo))
{
BSLinkInfoConstraint linkInfo = baseLinkInfo as BSLinkInfoConstraint;
if (linkInfo != null)
{
int valueInt;
float valueFloat;
bool valueBool;
OMV.Vector3 valueVector;
OMV.Vector3 valueVector2;
OMV.Quaternion valueQuaternion;
int axisLow, axisHigh;
int opIndex = 2;
while (opIndex < pParams.Length)
{
int thisOp = 0;
string errMsg = "";
try
{
thisOp = (int)pParams[opIndex];
DetailLog("{0},BSLinksetConstraint.ChangeLinkParams2,op={1},val={2}",
linkInfo.member.LocalID, thisOp, pParams[opIndex + 1]);
switch (thisOp)
{
case ExtendedPhysics.PHYS_PARAM_LINK_TYPE:
valueInt = (int)pParams[opIndex + 1];
ConstraintType valueType = (ConstraintType)valueInt;
if (valueType == ConstraintType.BS_FIXED_CONSTRAINT_TYPE ||
valueType == ConstraintType.D6_CONSTRAINT_TYPE ||
valueType == ConstraintType.D6_SPRING_CONSTRAINT_TYPE ||
valueType == ConstraintType.HINGE_CONSTRAINT_TYPE ||
valueType == ConstraintType.CONETWIST_CONSTRAINT_TYPE ||
valueType == ConstraintType.SLIDER_CONSTRAINT_TYPE)
{
linkInfo.constraintType = valueType;
}
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_FRAMEINA_LOC:
errMsg = "PHYS_PARAM_FRAMEINA_LOC takes one parameter of type vector";
valueVector = (OMV.Vector3)pParams[opIndex + 1];
linkInfo.frameInAloc = valueVector;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_FRAMEINA_ROT:
errMsg = "PHYS_PARAM_FRAMEINA_ROT takes one parameter of type rotation";
valueQuaternion = (OMV.Quaternion)pParams[opIndex + 1];
linkInfo.frameInArot = valueQuaternion;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_FRAMEINB_LOC:
errMsg = "PHYS_PARAM_FRAMEINB_LOC takes one parameter of type vector";
valueVector = (OMV.Vector3)pParams[opIndex + 1];
linkInfo.frameInBloc = valueVector;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_FRAMEINB_ROT:
errMsg = "PHYS_PARAM_FRAMEINB_ROT takes one parameter of type rotation";
valueQuaternion = (OMV.Quaternion)pParams[opIndex + 1];
linkInfo.frameInBrot = valueQuaternion;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_LINEAR_LIMIT_LOW:
errMsg = "PHYS_PARAM_LINEAR_LIMIT_LOW takes one parameter of type vector";
valueVector = (OMV.Vector3)pParams[opIndex + 1];
linkInfo.linearLimitLow = valueVector;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_LINEAR_LIMIT_HIGH:
errMsg = "PHYS_PARAM_LINEAR_LIMIT_HIGH takes one parameter of type vector";
valueVector = (OMV.Vector3)pParams[opIndex + 1];
linkInfo.linearLimitHigh = valueVector;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_ANGULAR_LIMIT_LOW:
errMsg = "PHYS_PARAM_ANGULAR_LIMIT_LOW takes one parameter of type vector";
valueVector = (OMV.Vector3)pParams[opIndex + 1];
linkInfo.angularLimitLow = valueVector;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_ANGULAR_LIMIT_HIGH:
errMsg = "PHYS_PARAM_ANGULAR_LIMIT_HIGH takes one parameter of type vector";
valueVector = (OMV.Vector3)pParams[opIndex + 1];
linkInfo.angularLimitHigh = valueVector;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_USE_FRAME_OFFSET:
errMsg = "PHYS_PARAM_USE_FRAME_OFFSET takes one parameter of type integer (bool)";
valueBool = ((int)pParams[opIndex + 1]) != 0;
linkInfo.useFrameOffset = valueBool;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_ENABLE_TRANSMOTOR:
errMsg = "PHYS_PARAM_ENABLE_TRANSMOTOR takes one parameter of type integer (bool)";
valueBool = ((int)pParams[opIndex + 1]) != 0;
linkInfo.enableTransMotor = valueBool;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_TRANSMOTOR_MAXVEL:
errMsg = "PHYS_PARAM_TRANSMOTOR_MAXVEL takes one parameter of type float";
valueFloat = (float)pParams[opIndex + 1];
linkInfo.transMotorMaxVel = valueFloat;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_TRANSMOTOR_MAXFORCE:
errMsg = "PHYS_PARAM_TRANSMOTOR_MAXFORCE takes one parameter of type float";
valueFloat = (float)pParams[opIndex + 1];
linkInfo.transMotorMaxForce = valueFloat;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_CFM:
errMsg = "PHYS_PARAM_CFM takes one parameter of type float";
valueFloat = (float)pParams[opIndex + 1];
linkInfo.cfm = valueFloat;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_ERP:
errMsg = "PHYS_PARAM_ERP takes one parameter of type float";
valueFloat = (float)pParams[opIndex + 1];
linkInfo.erp = valueFloat;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_SOLVER_ITERATIONS:
errMsg = "PHYS_PARAM_SOLVER_ITERATIONS takes one parameter of type float";
valueFloat = (float)pParams[opIndex + 1];
linkInfo.solverIterations = valueFloat;
opIndex += 2;
break;
case ExtendedPhysics.PHYS_PARAM_SPRING_AXIS_ENABLE:
errMsg = "PHYS_PARAM_SPRING_AXIS_ENABLE takes two parameters of types integer and integer (bool)";
valueInt = (int)pParams[opIndex + 1];
valueBool = ((int)pParams[opIndex + 2]) != 0;
GetAxisRange(valueInt, out axisLow, out axisHigh);
for (int ii = axisLow; ii <= axisHigh; ii++)
{
linkInfo.springAxisEnable[ii] = valueBool;
}
opIndex += 3;
break;
case ExtendedPhysics.PHYS_PARAM_SPRING_DAMPING:
errMsg = "PHYS_PARAM_SPRING_DAMPING takes two parameters of types integer and float";
valueInt = (int)pParams[opIndex + 1];
valueFloat = (float)pParams[opIndex + 2];
GetAxisRange(valueInt, out axisLow, out axisHigh);
for (int ii = axisLow; ii <= axisHigh; ii++)
{
linkInfo.springDamping[ii] = valueFloat;
}
opIndex += 3;
break;
case ExtendedPhysics.PHYS_PARAM_SPRING_STIFFNESS:
errMsg = "PHYS_PARAM_SPRING_STIFFNESS takes two parameters of types integer and float";
valueInt = (int)pParams[opIndex + 1];
valueFloat = (float)pParams[opIndex + 2];
GetAxisRange(valueInt, out axisLow, out axisHigh);
for (int ii = axisLow; ii <= axisHigh; ii++)
{
linkInfo.springStiffness[ii] = valueFloat;
}
opIndex += 3;
break;
case ExtendedPhysics.PHYS_PARAM_SPRING_EQUILIBRIUM_POINT:
errMsg = "PHYS_PARAM_SPRING_EQUILIBRIUM_POINT takes two parameters of type vector";
valueVector = (OMV.Vector3)pParams[opIndex + 1];
valueVector2 = (OMV.Vector3)pParams[opIndex + 2];
linkInfo.springLinearEquilibriumPoint = valueVector;
linkInfo.springAngularEquilibriumPoint = valueVector2;
opIndex += 3;
break;
case ExtendedPhysics.PHYS_PARAM_USE_LINEAR_FRAMEA:
errMsg = "PHYS_PARAM_USE_LINEAR_FRAMEA takes one parameter of type integer (bool)";
valueBool = ((int)pParams[opIndex + 1]) != 0;
linkInfo.useLinearReferenceFrameA = valueBool;
opIndex += 2;
break;
default:
break;
}
}
catch (InvalidCastException e)
{
m_physicsScene.Logger.WarnFormat("{0} value of wrong type in physSetLinksetParams: {1}, err={2}",
LogHeader, errMsg, e);
}
catch (Exception e)
{
m_physicsScene.Logger.WarnFormat("{0} bad parameters in physSetLinksetParams: {1}", LogHeader, e);
}
}
}
// Something changed so a rebuild is in order
Refresh(child);
}
}
break;
default:
ret = base.Extension(pFunct, pParams);
break;
}
return(ret);
}
// Create a static constraint between the two passed objects
private BSConstraint BuildConstraint(BSPrimLinkable rootPrim, BSLinkInfo li)
{
BSLinkInfoConstraint linkInfo = li as BSLinkInfoConstraint;
if (linkInfo == null)
{
return(null);
}
// Zero motion for children so they don't interpolate
li.member.ZeroMotion(true);
BSConstraint constrain = null;
switch (linkInfo.constraintType)
{
case ConstraintType.BS_FIXED_CONSTRAINT_TYPE:
case ConstraintType.D6_CONSTRAINT_TYPE:
// Relative position normalized to the root prim
// Essentually a vector pointing from center of rootPrim to center of li.member
OMV.Vector3 childRelativePosition = linkInfo.member.Position - rootPrim.Position;
// real world coordinate of midpoint between the two objects
OMV.Vector3 midPoint = rootPrim.Position + (childRelativePosition / 2);
DetailLog("{0},BSLinksetConstraint.BuildConstraint,6Dof,rBody={1},cBody={2},rLoc={3},cLoc={4},midLoc={5}",
rootPrim.LocalID, rootPrim.PhysBody, linkInfo.member.PhysBody,
rootPrim.Position, linkInfo.member.Position, midPoint);
// create a constraint that allows no freedom of movement between the two objects
// http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
constrain = new BSConstraint6Dof(
m_physicsScene.World, rootPrim.PhysBody, linkInfo.member.PhysBody, midPoint, true, true);
/* NOTE: below is an attempt to build constraint with full frame computation, etc.
* Using the midpoint is easier since it lets the Bullet code manipulate the transforms
* of the objects.
* Code left for future programmers.
* // ==================================================================================
* // relative position normalized to the root prim
* OMV.Quaternion invThisOrientation = OMV.Quaternion.Inverse(rootPrim.Orientation);
* OMV.Vector3 childRelativePosition = (liConstraint.member.Position - rootPrim.Position) * invThisOrientation;
*
* // relative rotation of the child to the parent
* OMV.Quaternion childRelativeRotation = invThisOrientation * liConstraint.member.Orientation;
* OMV.Quaternion inverseChildRelativeRotation = OMV.Quaternion.Inverse(childRelativeRotation);
*
* DetailLog("{0},BSLinksetConstraint.PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, liConstraint.member.LocalID);
* constrain = new BS6DofConstraint(
* PhysicsScene.World, rootPrim.Body, liConstraint.member.Body,
* OMV.Vector3.Zero,
* OMV.Quaternion.Inverse(rootPrim.Orientation),
* OMV.Vector3.Zero,
* OMV.Quaternion.Inverse(liConstraint.member.Orientation),
* true,
* true
* );
* // ==================================================================================
*/
break;
case ConstraintType.D6_SPRING_CONSTRAINT_TYPE:
constrain = new BSConstraintSpring(m_physicsScene.World, rootPrim.PhysBody, linkInfo.member.PhysBody,
linkInfo.frameInAloc, linkInfo.frameInArot, linkInfo.frameInBloc, linkInfo.frameInBrot,
linkInfo.useLinearReferenceFrameA,
true /*disableCollisionsBetweenLinkedBodies*/);
DetailLog("{0},BSLinksetConstraint.BuildConstraint,spring,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6}",
rootPrim.LocalID,
rootPrim.LocalID, rootPrim.PhysBody.AddrString,
linkInfo.member.LocalID, linkInfo.member.PhysBody.AddrString,
rootPrim.Position, linkInfo.member.Position);
break;
default:
break;
}
linkInfo.SetLinkParameters(constrain);
m_physicsScene.Constraints.AddConstraint(constrain);
return(constrain);
}
