import { b2TimeStep, b2Body } from "@box2d/core";
/**
 * A controller edge is used to connect bodies and controllers
 * together in a bipartite graph.
 */
export declare class b2ControllerEdge {
    /** Provides quick access to other end of this edge. */
    readonly controller: b2Controller;
    /** The body */
    readonly body: b2Body;
    /** The previous controller edge in the controller's joint list */
    prevBody: b2ControllerEdge | null;
    /** The next controller edge in the controller's joint list */
    nextBody: b2ControllerEdge | null;
    /** The previous controller edge in the body's joint list */
    prevController: b2ControllerEdge | null;
    /** The next controller edge in the body's joint list */
    nextController: b2ControllerEdge | null;
    constructor(controller: b2Controller, body: b2Body);
}
/**
 * Base class for controllers. Controllers are a convience for
 * encapsulating common per-step functionality.
 */
export declare abstract class b2Controller {
    m_bodyList: b2ControllerEdge | null;
    m_bodyCount: number;
    m_prev: b2Controller | null;
    m_next: b2Controller | null;
    /**
     * Controllers override this to implement per-step functionality.
     */
    abstract Step(step: b2TimeStep): void;
    /**
     * Get the next controller in the world's body list.
     */
    GetNext(): b2Controller | null;
    /**
     * Get the previous controller in the world's body list.
     */
    GetPrev(): b2Controller | null;
    /**
     * Get the parent world of this body.
     */
    /**
     * Get the attached body list
     */
    GetBodyList(): b2ControllerEdge | null;
    /**
     * Adds a body to the controller list.
     */
    AddBody(body: b2Body): void;
    /**
     * Removes a body from the controller list.
     */
    RemoveBody(body: b2Body): void;
    /**
     * Removes all bodies from the controller list.
     */
    Clear(): void;
}
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