Method update

core/physics/PhysicsWorld.cpp:932–1021

}

void PhysicsWorld::update(float delta, bool userCall /* = false*/)
{

    if (_preUpdateCallback)
        _preUpdateCallback();  // fix #11154

    if (!_delayAddBodies.empty())
    {
        updateBodies();
    }
    else if (!_delayRemoveBodies.empty())
    {
        updateBodies();
    }

    auto sceneToWorldTransform = _scene->getNodeToParentTransform();
    beforeSimulation(_scene, sceneToWorldTransform, 1.f, 1.f, 0.f);

    if (!_delayAddJoints.empty() || !_delayRemoveJoints.empty())
    {
        updateJoints();
    }

    if (delta < FLT_EPSILON)
    {
        return;
    }

    if (userCall)
    {
#    if AX_TARGET_PLATFORM == AX_PLATFORM_WIN32
        cpSpaceStep(_cpSpace, delta);
#    else
        cpHastySpaceStep(_cpSpace, delta);
#    endif
    }
    else
    {
        _updateTime += delta;
        if (_fixedRate)
        {
            const float step = 1.0f / _fixedRate;
            const float dt   = step * _speed;
            while (_updateTime > step)
            {
                _updateTime -= step;
                for (auto&& body : _bodies)
                {
                    body->fixedUpdate(dt);
                }
                _scene->fixedUpdate(dt);

#    if AX_TARGET_PLATFORM == AX_PLATFORM_WIN32
                cpSpaceStep(_cpSpace, dt);
#    else
                cpHastySpaceStep(_cpSpace, dt);
#    endif
            }