Function evaluateAllEventLayers

evaluateAllEventLayers(
    eventLayers: (EventLayer | null)[],
    beat: number,
    bpmList: Bpm[],
): { alpha: number; x: number; y: number; rotation: number }
Evaluate all event layers for a line, summing the results (as the game does).
Parameters
- eventLayers: (EventLayer | null)[]
  Array of event layers.
- beat: number
  Current beat (already divided by bpmfactor if needed).
- bpmList: Bpm[]
  BPM list.
Returns { alpha: number; x: number; y: number; rotation: number }
Combined alpha, x, y, rotation values.
- Defined in events.ts:455