import { Game } from "..";
interface SimulationOptions {
    /**
     * The millisecond value to pass to the second argument of `setInterval`. If left
     * unspecified, this will default to the default milliseconds per tick rate of the
     * physics.
     */
    frequency?: number;
}
declare class SimulationHandle {
    readonly stop: () => void;
    constructor(stop: () => void);
}
export default function simulatePhysics(game: Game, options?: SimulationOptions): SimulationHandle;
interface LoopCallback {
    /**
     * @returns If the loop should stop. In other words,
     *          `true` if it should stop, falsy if it should stop.
     */
    (elapsedMs: number): unknown;
}
export declare function loopRequestAnimationFrame(callback: LoopCallback): void;
export declare function loopSetInterval(callback: LoopCallback, interval: number): void;
export declare class PhysicsTicker {
    private readonly game;
    private readonly cap;
    constructor(game: Game, cap?: number);
    update(elapsedMs: number): void;
    private simulateTicks;
}
export {};