Struct PlaceholderGenerator 

pub struct PlaceholderGenerator;

Builds LoadingPlaceholder entries from the current visible tile set.

Stateless – call generate each frame with the latest visible tiles and a monotonic time value.

Implementations

impl PlaceholderGenerator

pub fn generate( visible_tiles: &[VisibleTile], style: &PlaceholderStyle, time_seconds: f64, ) -> Vec<LoadingPlaceholder>

Scan the visible tile set and emit a LoadingPlaceholder for every tile that has no data.

Arguments

• visible_tiles – The current frame’s visible tile set from the tile manager.
• style – Active placeholder style (controls animation speed).
• time_seconds – Monotonic time in seconds (e.g. std::time::Instant::elapsed().as_secs_f64()). Used to compute the shimmer animation phase.