Struct EdgeUnlockAnim 

pub struct EdgeUnlockAnim {
    pub from: TreeCoord,
    pub to: TreeCoord,
    pub ticks: u32,
    pub gates_destination: bool,
}

In-flight “path lights up” animation when a buy lights an edge. Lives only at runtime — #[serde(skip)]-projected fields don’t ever reach disk.

gates_destination is true when the buy newly made the destination reachable — those destinations are held in “not yet reachable” UX until the wave arrives, and get the gold unlock_flash on completion. Edges to already-reachable neighbors animate decoratively (so every newly-lit edge gets the snake) but DON’T gate the destination, since the player was free to buy it before this animation started.

Wave geometry (leading_inside / trailing_inside / visible length) is computed lazily against node::edge_path_cells(from, to), which returns a canonical lo→hi-ordered path. Caching the offsets on the anim would couple them to the call-site direction; under a renderer that iterated the edge in the opposite (a, b) order they pointed at the wrong end of the line.

Fields

from: TreeCoord

to: TreeCoord

ticks: u32

gates_destination: bool

Implementations

impl EdgeUnlockAnim

pub fn visible_advance(&self) -> usize

Visible-cell offset of the wavefront — how many cells past the source-side leading-inside region the head has advanced.

Trait Implementations

impl Clone for EdgeUnlockAnim

fn clone(&self) -> EdgeUnlockAnim

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EdgeUnlockAnim

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for EdgeUnlockAnim