import { System } from 'common/engine/system';
import { IEntity } from 'common/engine/state';
export interface IBodyComponent {
    mass?: number;
    size?: number[];
    velocity?: number[];
}
export declare class Physics extends System {
    components: {
        body: string;
    };
    private bodies;
    private world;
    start(state: any): void;
    add(entity: IEntity): void;
    remove(entity: IEntity): void;
    update(entity: IEntity): void;
    tick(delta: any): void;
}