Method updateCollidersComponents

src/systems/BroadPhaseSystem.cpp:159–189

Update the broad-phase state of some colliders components

// Update the broad-phase state of some colliders components
void BroadPhaseSystem::updateCollidersComponents(uint32 startIndex, uint32 nbItems) {

    RP3D_PROFILE("BroadPhaseSystem::updateCollidersComponents()", mProfiler);

    assert(nbItems > 0);
    assert(startIndex < mCollidersComponents.getNbComponents());
    assert(startIndex + nbItems <= mCollidersComponents.getNbComponents());

    // For each collider component to update
    for (uint32 i = startIndex; i < startIndex + nbItems; i++) {

        const int32 broadPhaseId = mCollidersComponents.mBroadPhaseIds[i];
        if (broadPhaseId != -1) {

            const Entity& bodyEntity = mCollidersComponents.mBodiesEntities[i];
            const Transform& transform = mTransformsComponents.getTransform(bodyEntity);

            // Recompute the world-space AABB of the collision shape
            const AABB aabb = mCollidersComponents.mCollisionShapes[i]->computeTransformedAABB(transform * mCollidersComponents.mLocalToBodyTransforms[i]);

            // If the size of the collision shape has been changed by the user,
            // we need to reset the broad-phase AABB to its new size
            const bool forceReInsert = mCollidersComponents.mHasCollisionShapeChangedSize[i];

            // Update the broad-phase state of the collider
            updateColliderInternal(broadPhaseId, mCollidersComponents.mColliders[i], aabb, forceReInsert);

            mCollidersComponents.mHasCollisionShapeChangedSize[i] = false;
        }
    }
}


// Add a collider in the array of colliders that have moved in the last simulation step