public void ConvexSweepTest(ConvexShape castShape, ref IndexedMatrix convexFromWorld, ref IndexedMatrix convexToWorld, ConvexResultCallback resultCallback, float allowedCcdPenetration)
{
IndexedMatrix convexFromTrans = convexFromWorld;
IndexedMatrix convexToTrans = convexToWorld;
IndexedVector3 castShapeAabbMin;
IndexedVector3 castShapeAabbMax;
/* Compute AABB that encompasses angular movement */
IndexedVector3 linVel, angVel;
TransformUtil.CalculateVelocity(ref convexFromTrans, ref convexToTrans, 1.0f, out linVel, out angVel);
// FIXME MAN check this - should be a get/set rotation call, basis copy like this may break with scale?
IndexedMatrix R = IndexedMatrix.Identity;
R.SetRotation(convexFromTrans.GetRotation());
castShape.CalculateTemporalAabb(ref R, ref linVel, ref angVel, 1.0f, out castShapeAabbMin, out castShapeAabbMax);
/// go over all objects, and if the ray intersects their aabb + cast shape aabb,
// do a ray-shape query using convexCaster (CCD)
for (int i = 0; i < m_overlappingObjects.Count; i++)
{
CollisionObject collisionObject = m_overlappingObjects[i];
//only perform raycast if filterMask matches
if (resultCallback.NeedsCollision(collisionObject.GetBroadphaseHandle()))
{
//RigidcollisionObject* collisionObject = ctrl->GetRigidcollisionObject();
IndexedVector3 collisionObjectAabbMin;
IndexedVector3 collisionObjectAabbMax;
IndexedMatrix t = collisionObject.GetWorldTransform();
collisionObject.GetCollisionShape().GetAabb(ref t, out collisionObjectAabbMin, out collisionObjectAabbMax);
AabbUtil2.AabbExpand(ref collisionObjectAabbMin, ref collisionObjectAabbMax, ref castShapeAabbMin, ref castShapeAabbMax);
float hitLambda = 1f; //could use resultCallback.m_closestHitFraction, but needs testing
IndexedVector3 hitNormal;
if (AabbUtil2.RayAabb(convexFromWorld._origin, convexToWorld._origin, ref collisionObjectAabbMin, ref collisionObjectAabbMax, ref hitLambda, out hitNormal))
{
IndexedMatrix wt = collisionObject.GetWorldTransform();
CollisionWorld.ObjectQuerySingle(castShape, ref convexFromTrans, ref convexToTrans,
collisionObject,
collisionObject.GetCollisionShape(),
ref wt,
resultCallback,
allowedCcdPenetration);
}
}
}
}
public virtual void RemoveCollisionObject(CollisionObject collisionObject)
{
//bool removeFromBroadphase = false;
{
BroadphaseProxy bp = collisionObject.GetBroadphaseHandle();
if (bp != null)
{
//
// only clear the cached algorithms
//
GetBroadphase().GetOverlappingPairCache().CleanProxyFromPairs(bp, m_dispatcher1);
GetBroadphase().DestroyProxy(bp, m_dispatcher1);
collisionObject.SetBroadphaseHandle(null);
}
}
//swapremove
m_collisionObjects.Remove(collisionObject);
}
public void UpdateSingleAabb(CollisionObject colObj)
{
IndexedVector3 minAabb;
IndexedVector3 maxAabb;
IndexedMatrix wt = colObj.GetWorldTransform();
colObj.GetCollisionShape().GetAabb(ref wt, out minAabb, out maxAabb);
//need to increase the aabb for contact thresholds
IndexedVector3 contactThreshold = new IndexedVector3(BulletGlobals.gContactBreakingThreshold);
minAabb -= contactThreshold;
maxAabb += contactThreshold;
if (GetDispatchInfo().m_useContinuous && colObj.GetInternalType() == CollisionObjectTypes.CO_RIGID_BODY && !colObj.IsStaticOrKinematicObject())
{
IndexedVector3 minAabb2,maxAabb2;
colObj.GetCollisionShape().GetAabb(colObj.GetInterpolationWorldTransform(),out minAabb2 ,out maxAabb2);
minAabb2 -= contactThreshold;
maxAabb2 += contactThreshold;
MathUtil.VectorMin(ref minAabb2,ref minAabb);
MathUtil.VectorMax(ref maxAabb2, ref maxAabb);
}
if (BulletGlobals.g_streamWriter != null && BulletGlobals.debugCollisionWorld)
{
MathUtil.PrintVector3(BulletGlobals.g_streamWriter, "updateSingleAabbMin", minAabb);
MathUtil.PrintVector3(BulletGlobals.g_streamWriter, "updateSingleAabbMax", maxAabb);
}
IBroadphaseInterface bp = m_broadphasePairCache as IBroadphaseInterface;
//moving objects should be moderately sized, probably something wrong if not
if (colObj.IsStaticObject() || ((maxAabb - minAabb).LengthSquared() < 1e12f))
{
bp.SetAabb(colObj.GetBroadphaseHandle(), ref minAabb, ref maxAabb, m_dispatcher1);
}
else
{
//something went wrong, investigate
//this assert is unwanted in 3D modelers (danger of loosing work)
colObj.SetActivationState(ActivationState.DISABLE_SIMULATION);
//static bool reportMe = true;
bool reportMe = true;
if (reportMe && m_debugDrawer != null)
{
reportMe = false;
m_debugDrawer.ReportErrorWarning("Overflow in AABB, object removed from simulation");
m_debugDrawer.ReportErrorWarning("If you can reproduce this, please email [email protected]\n");
m_debugDrawer.ReportErrorWarning("Please include above information, your Platform, version of OS.\n");
m_debugDrawer.ReportErrorWarning("Thanks.\n");
}
}
}
