3 nav-leaf"><a href="../../guides/actors/actors-with-physics/">How to use physics with actors</a></li>
    <li class="level2 nav-node"><a href="../../guides/animation/">Animation</a></li>
    <li class="level3 nav-leaf"><a href="../../guides/animation/part-1-basics/">Part 1: Animation Fundamentals</a></li>
    <li class="level3 nav-leaf"><a href="../../guides/animation/part-2-signals/">Part 2: Using Signals</a></li>
    <li class="level3 nav-leaf"><a href="../../guides/animation/part-3-timelines/">Part 3: T