/** Character-only motion — see MOTION-EVOO-CHARACTER.md */

/** Eyes lead mouth on pose change (ms). */
export const EVOO_MOUTH_LAG_MS = { min: 40, max: 80 } as const;

/** Full pose transition duration (ms). */
export const EVOO_POSE_TRANSITION_MS = { min: 220, max: 320 } as const;

/** Midpoint transition used in SVG/CSS. */
export const EVOO_POSE_TRANSITION_S =
  (EVOO_POSE_TRANSITION_MS.min + EVOO_POSE_TRANSITION_MS.max) / 2 / 1000;

/** Cute / soft / snap — character springs only. */
export const EVOO_CHARACTER_SPRING = "cubic-bezier(0.34, 1.25, 0.64, 1)";

export function evooMouthLagMs(seed = Math.random()): number {
  return Math.round(EVOO_MOUTH_LAG_MS.min + seed * (EVOO_MOUTH_LAG_MS.max - EVOO_MOUTH_LAG_MS.min));
}