Struct TileCache 

pub struct TileCache { /* private fields */ }

Pre-rendered RGBA tile cache for a (tileset, palette) pair.

Stores each tile from a TileSet rendered through a Palette as an RgbaTile, avoiding per-pixel palette lookups on repeat renders.

Implementations

impl TileCache

pub fn new() -> Self

pub fn ensure(&mut self, tileset: &TileSet, palette: &Palette)

Populate the cache from a tileset and palette, unless already valid.

pub fn ensure_with_format<C: ColorIndex>( &mut self, tileset: &TileSet, palette: &Palette<C>, )

Populate the cache from a tileset and palette using a generic ColorIndex.

Unlike ensure, this method is format-aware:

• TileFormat::FullColor: uses TileSet::get_rgba directly — no palette lookup.
• TileFormat::Gb2bpp / TileFormat::Gba4bpp: applies palette.color(C::from_u8(...)).

pub fn invalidate(&mut self)

Invalidate the cache so the next ensure rebuilds it.

pub fn get(&self, index: usize) -> Option<&RgbaTile>

Get a cached RGBA tile by tile index, or None if out of bounds.

Trait Implementations

impl Default for TileCache

fn default() -> Self

Returns the “default value” for a type.