Struct TileAnimState 

pub struct TileAnimState { /* private fields */ }

Per-frame water/flower background-tile animation.

• counter1 increments every frame; at 20 the water tile rotates one pixel; at 21 (TileAnimKind::WaterFlower only) the flower tile advances and counter1 resets. For water-only tilesets counter1 resets right after the water update.
• counter2 increments on each water update (& 7); its bit 2 selects the water rotation direction (right for 4 updates, then left for 4), and counter2 & 3 selects the flower frame (0/1 → 1, 2 → 2, 3 → 3).

Implementations

impl TileAnimState

pub fn new() -> Self

pub fn set_tileset(&mut self, kind: TileAnimKind)

Adopt a tileset’s animation kind and reset counter1 (counter2 and the accumulated water shift persist, matching the classic WRAM behavior on map load).

pub fn tick(&mut self)

Advance one frame. No-op when the tileset has no animated tiles.

pub fn water_shift(&self) -> i8

Current horizontal rotation of the water tile in pixels (positive = right). Sample source column (x - shift) mod 8.

pub fn flower_frame(&self) -> Option<u8>

Flower frame (1..=3) to display, or None before the first flower update (the tileset’s base flower tile shows).

pub fn kind(&self) -> TileAnimKind

Animation kind for the current tileset.

Trait Implementations

impl Clone for TileAnimState

fn clone(&self) -> TileAnimState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TileAnimState

impl Debug for TileAnimState

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

Formats the value using the given formatter.

impl Default for TileAnimState

fn default() -> Self

Returns the “default value” for a type.