Method removeConcavePairWithIndex

src/engine/OverlappingPairs.cpp:203–236

Remove a concave pair at a given index

// Remove a concave pair at a given index
void OverlappingPairs::removeConcavePairWithIndex(uint64 pairIndex, bool removeFromColliders) {

    RP3D_PROFILE("OverlappingPairs::removeConcavePairWithIndex()", mProfiler);

    const uint64 nbConcavePairs = mConcavePairs.size();

    assert(pairIndex < nbConcavePairs);

    assert(mColliderComponents.getOverlappingPairs(mConcavePairs[pairIndex].collider1).find(mConcavePairs[pairIndex].pairID) != mColliderComponents.getOverlappingPairs(mConcavePairs[pairIndex].collider1).end());
    assert(mColliderComponents.getOverlappingPairs(mConcavePairs[pairIndex].collider2).find(mConcavePairs[pairIndex].pairID) != mColliderComponents.getOverlappingPairs(mConcavePairs[pairIndex].collider2).end());

    if (removeFromColliders) {

        // Remove the involved overlapping pair from the two colliders
        mColliderComponents.getOverlappingPairs(mConcavePairs[pairIndex].collider1).remove(mConcavePairs[pairIndex].pairID);
        mColliderComponents.getOverlappingPairs(mConcavePairs[pairIndex].collider2).remove(mConcavePairs[pairIndex].pairID);
    }

    assert(mMapConcavePairIdToPairIndex[mConcavePairs[pairIndex].pairID] == pairIndex);
    mMapConcavePairIdToPairIndex.remove(mConcavePairs[pairIndex].pairID);

    // Destroy all the LastFrameCollisionInfo objects
    mConcavePairs[pairIndex].destroyLastFrameCollisionInfos();

    // Change the mapping between the pairId and the index in the convex pairs array if we swap the last item with the one to remove
    if (mConcavePairs.size() > 1 && pairIndex < (nbConcavePairs - 1)) {

        mMapConcavePairIdToPairIndex[mConcavePairs[nbConcavePairs - 1].pairID] = pairIndex;
    }

    // We want to keep the arrays tightly packed. Therefore, when a pair is removed,
    // we replace it with the last element of the array.
    mConcavePairs.removeAtAndReplaceByLast(pairIndex);
}

// Enable an overlapping pair (because at least one body of the pair is awaken or not static anymore)
void OverlappingPairs::enablePair(uint64 pairId) {