import { AnyObject, Vec2 } from '../physics';
import { Box2DRigidBody } from './RigidBody';
import { Box2DJoint } from './Joint';
import { Box2DBaseJointOptions, Box2DRigidBodyOptions, Box2DWorldOptions } from './interface';
export declare class Box2DWorld {
    /**
     * 物理世界
     */
    protected _world: AnyObject;
    private _box2d;
    get Box2D(): AnyObject;
    set Box2D(value: AnyObject);
    get instance(): AnyObject;
    /**2D游戏默认单位为像素，物理默认单位为米，此值设置了像素和米的转换比率，默认50像素=1米*/
    pixelRatio: number;
    tempVector: any;
    tempVector2: any;
    tempVector3: any;
    tempVector4: any;
    tempBodyDef: any;
    tempFixtureDef: any;
    emptyBody: any;
    private _tempDistanceJointDef;
    get tempDistanceJointDef(): any;
    private _tempGearJointDef;
    get tempGearJointDef(): any;
    private _tempMotorJointDef;
    get tempMotorJointDef(): any;
    private _tempMouseJointDef;
    get tempMouseJointDef(): any;
    private _tempPrismaticJointDef;
    get tempPrismaticJointDef(): any;
    private _tempPulleyJointDef;
    get tempPulleyJointDef(): any;
    private _tempRevoluteJointDef;
    get tempRevoluteJointDef(): any;
    private _tempWeldJointDef;
    get tempWeldJointDef(): any;
    private _tempWheelJointDef;
    get tempWheelJointDef(): any;
    private _velocityIterations;
    private _positionIterations;
    init({ gravity, wasm, Box2D, positioniterations, velocityIterations, }: Box2DWorldOptions): Promise<AnyObject>;
    step(deltaTime: number): void;
    /**
     * 清除世界
     */
    clear(): void;
    addRigidBody(options: Box2DRigidBodyOptions): Box2DRigidBody;
    removeRigidBody(body: Box2DRigidBody): void;
    addJoint(options: Box2DBaseJointOptions): Box2DJoint;
    removeJoint(joint: Box2DJoint): void;
    setGravity(value: Vec2): void;
}