export declare function degToRad(degrees: number): number;
/**
 * Throttles `func` to at most once per animation frame, always invoking it with
 * the most recent arguments. Keeps high-frequency pointer moves smooth without
 * dropping the final position.
 */
export declare function rafThrottle<Args extends unknown[]>(func: (...args: Args) => void): {
    (...args: Args): void;
    cancel(): void;
};
export declare function changeToControlAngle(startValue: number, change: number, shiftModifier?: boolean): number;
export declare function controlAngleToValue(minValue: number, maxValue: number, controlAngle: number): number;
/**
 * Snaps `value` to the nearest multiple of `step` measured from `minValue`, then
 * clamps to the range. A falsy `step` leaves the value untouched (continuous).
 * Rounds to the step's decimal places to avoid floating-point drift (e.g. 0.01).
 */
export declare function quantize(minValue: number, maxValue: number, step: number, value: number): number;
export declare function valueToControlAngle(minValue: number, maxValue: number, value: number): number;