Method remove

perro_source/runtime_project/perro_runtime/src/cns/node_arena.rs:223–239

Remove a node and invalidate old ids for that slot. Successful removal bumps the slot generation and pushes the slot onto the free list for later reuse.

(&mut self, id: NodeID)

    pub fn physics_revision(&self) -> u64 {
        self.physics_revision
    }

    /// Record a possible physics-relevant data change. Pairs with
    /// [`Self::get_mut_untracked_non_physics`].
    #[inline]
    pub fn mark_physics_change(&mut self) {
        self.physics_revision = self.physics_revision.wrapping_add(1);
    }

    /// Structural revision: chg only on insert / remove / clear / reparent —
    /// NOT on data mutations. Cheap gate 4 systems that care only whether the
    /// node set or topology chg (e.g. audio scene-flag rescan).
    #[inline]
    pub fn structural_revision(&self) -> u64 {
        self.structural_revision
    }

    #[inline]
    fn bump_mutation_revision(&mut self) {
        self.mutation_revision = self.mutation_revision.wrapping_add(1);