Rhythm Component — Patapon's beat clock, drum input, command parser, combo / FEVER, and the whole game's audio. Lives on the scene's "Game" entity beside Battle and Hud. Talks to them only through game/Rules.module (R.state rhythm fields + the bus): emits beat { beat, measure, inMeasure } every 0.5 s (120 BPM) drum { drum, quality, offset } each drum struck (perfect|good|miss) command { name, measure, perfect } a 4-drum command was entered perform { name, measure } first beat of the measure the army performs it comboBreak { reason } offbeat | wrong | silence fever { on } hears start, phase (clock reset / stings), hit, unitDied, fortressDown (sfx) Timing model (spec rules 2-4). Beat k sounds at beatTime = k * BEAT. A drum is judged against the NEAREST beat: |offset| <= PERFECT perfect, <= GOOD good, wider is a miss that breaks the combo. Out of a combo chain the four drums may start on any beat but must fall on consecutive beats. When the 4th drum lands on beat B the command fires, the measure grid re-aligns so beat B+1 is beat 1 of a measure, and the army performs during beats B+1..B+4 (drums there break the combo). Within a chain the next command must be drummed on beats B+5..B+8, starting on B+5; a window that passes without one is a "silence" break (or "wrong" when it was left half-drummed). Sound: every clip under game/rhythm/sounds/ is synthesised in Luau by game/rhythm/tools/bake_sounds.luau and played through non-spatial Audio components on three child hosts ("RhythmMusic", "RhythmDrums", "RhythmSfx"). The groove is a one-measure clip retriggered on every downbeat, so it stays locked to the beat clock instead of drifting against it.

entity.find("Game").component.get("Rhythm"):debugState()