Struct WindowLayer 

pub struct WindowLayer {
    pub tilemap: Tilemap,
    pub wx: u32,
    pub wy: u32,
    pub enabled: bool,
}

Window layer state.

Fields

tilemap: Tilemap

The window’s tile map (same format as BG: 32×32 entries).

wx: u32

Window X position register (WX). The window starts at screen column (wx - 7). Valid range: 0–166. A value of 7 means the window starts at screen column 0.

wy: u32

Window Y position register (WY). The window starts at this screen row. Valid range: 0–143.

enabled: bool

Whether the window layer is enabled.

Implementations

impl WindowLayer

pub fn new() -> Self

pub fn screen_x(&self) -> u32

The actual screen X where the window starts. WX=7 means column 0. WX<7 is clamped to 0.

pub fn render( &self, fb: &mut impl FbSurface, tileset: &TileSet, palette: &Palette, )

Render the window layer on top of the existing framebuffer content. Only renders pixels where the window is visible (at and below WY, at and right of WX-7).

pub fn render_scanline( &self, fb: &mut impl FbSurface, tileset: &TileSet, palette: &Palette, screen_y: u32, )

Render a single scanline of the window layer.

Trait Implementations

impl Clone for WindowLayer

fn clone(&self) -> WindowLayer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WindowLayer

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

Formats the value using the given formatter.

impl Default for WindowLayer

fn default() -> Self

Returns the “default value” for a type.