Swim and water

Choose:

Rules

1. A water volume publishes enter/exit events and surface information. Movement state changes are logical transitions, not render-height guesses.
2. Surface buoyancy, dive depth, vertical authority and exit/ledge rules are authored data. locomotion integrates the selected water movement policy.
3. Breath/oxygen may use its own meter or a declared shared resource. Publish warning thresholds and failure behavior; do not assume stamina is always the correct owner.
4. camera-anti-clip handles solid geometry around/under water. The water surface itself is not universally treated as a solid camera collider; above/below-water presentation is a separate camera/render policy.
5. Water attack/cancel availability is an explicit graph subset. Do not automatically reuse land cancels.
6. fall-rules owns fall consequences; water may modify them only through published landing/volume rules.