lavaRiseRate(elapsed: number) → number

How fast the tide is climbing this instant, in world units a second.

L.state.lavaHeight += L.lavaRiseRate(L.state.elapsed) * dt

dawn( ) → number

Dawn is a function of the player's HEIGHT, not the clock: the sun is exactly on the horizon when the player reaches the rim. `L.dawn()` reads 0 at the floor and 1 at the rim.

cantoAt(height: number) → void

Canto index for a height (1-based), and the canto record.

on(event: string, fn: (...any) → void

emit(event: string, ...: any) → void

setPhase(phase: string) → void

layout( ) → void

Read `ui.screenSize()` every build; never a fixed pixel position. The filmed shape is 1080x1440 (3:4 portrait) and the game also ships wide.