Method moveComponentToIndex

src/components/FixedJointComponents.cpp:170–200

Move a component from a source to a destination index in the components array The destination location must contain a constructed object

// Move a component from a source to a destination index in the components array
// The destination location must contain a constructed object
void FixedJointComponents::moveComponentToIndex(uint32 srcIndex, uint32 destIndex) {

    const Entity entity = mJointEntities[srcIndex];

    // Copy the data of the source component to the destination location
    new (mJointEntities + destIndex) Entity(mJointEntities[srcIndex]);
    mJoints[destIndex] = mJoints[srcIndex];
    new (mLocalAnchorPointBody1 + destIndex) Vector3(mLocalAnchorPointBody1[srcIndex]);
    new (mLocalAnchorPointBody2 + destIndex) Vector3(mLocalAnchorPointBody2[srcIndex]);
    new (mR1World + destIndex) Vector3(mR1World[srcIndex]);
    new (mR2World + destIndex) Vector3(mR2World[srcIndex]);
    new (mI1 + destIndex) Matrix3x3(mI1[srcIndex]);
    new (mI2 + destIndex) Matrix3x3(mI2[srcIndex]);
    new (mImpulseTranslation + destIndex) Vector3(mImpulseTranslation[srcIndex]);
    new (mImpulseRotation + destIndex) Vector3(mImpulseRotation[srcIndex]);
    new (mInverseMassMatrixTranslation + destIndex) Matrix3x3(mInverseMassMatrixTranslation[srcIndex]);
    new (mInverseMassMatrixRotation + destIndex) Matrix3x3(mInverseMassMatrixRotation[srcIndex]);
    new (mBiasTranslation + destIndex) Vector3(mBiasTranslation[srcIndex]);
    new (mBiasRotation + destIndex) Vector3(mBiasRotation[srcIndex]);
    new (mInitOrientationDifferenceInv + destIndex) Quaternion(mInitOrientationDifferenceInv[srcIndex]);

    // Destroy the source component
    destroyComponent(srcIndex);

    assert(!mMapEntityToComponentIndex.containsKey(entity));

    // Update the entity to component index mapping
    mMapEntityToComponentIndex.add(Pair<Entity, uint32>(entity, destIndex));

    assert(mMapEntityToComponentIndex[mJointEntities[destIndex]] == destIndex);
}

// Swap two components in the array
void FixedJointComponents::swapComponents(uint32 index1, uint32 index2) {