void FConstraintInstance::SetAngularSwing2Limit(EAngularConstraintMotion Swing2Motion, float InSwing2LimitAngle)
{
AngularSwing2Motion = Swing2Motion;
Swing2LimitAngle = InSwing2LimitAngle;
UpdateAngularLimit();
}
void FConstraintInstance::SetAngularTwistLimit(EAngularConstraintMotion TwistMotion, float InTwistLimitAngle)
{
AngularTwistMotion = TwistMotion;
TwistLimitAngle = InTwistLimitAngle;
UpdateAngularLimit();
}
/**
* Create physics engine constraint.
*/
void FConstraintInstance::InitConstraint(USceneComponent* Owner, FBodyInstance* Body1, FBodyInstance* Body2, float Scale)
{
OwnerComponent = Owner;
#if WITH_PHYSX
PhysxUserData = FPhysxUserData(this);
// if there's already a constraint, get rid of it first
if (ConstraintData)
{
TermConstraint();
}
PxRigidActor* PActor1 = nullptr;
PxRigidActor* PActor2 = nullptr;
PxScene* PScene = GetPScene_LockFree(Body1, Body2);
SCOPED_SCENE_WRITE_LOCK(PScene);
const bool bValidConstraintSetup = PScene && GetPActors_AssumesLocked(Body1, Body2, &PActor1, &PActor2) && CreatePxJoint_AssumesLocked(PActor1, PActor2, PScene, Scale);
if (!bValidConstraintSetup)
{
return;
}
// update mass
UpdateAverageMass_AssumesLocked(PActor1, PActor2);
//flags and projection settings
UpdateConstraintFlags_AssumesLocked();
//limits
UpdateAngularLimit();
UpdateLinearLimit();
//breakable
UpdateBreakable();
//motors
SetLinearDriveParams(LinearDriveSpring, LinearDriveDamping, LinearDriveForceLimit);
SetAngularDriveParams(AngularDriveSpring, AngularDriveDamping, AngularDriveForceLimit);
UpdateDriveTarget();
EnsureSleepingActorsStaySleeping_AssumesLocked(PActor1, PActor2);
#endif // WITH_PHYSX
}