import * as i0 from "@angular/core";
export interface BubbleOptions {
    xLowerBound: number;
    xUpperBound: number;
    yLowerBound: number;
    yUpperBound: number;
    x: number;
    y: number;
    minSpeed: number;
    maxSpeed: number;
    minOpacity: number;
    maxOpacity: number;
    minSize: number;
    maxSize: number;
}
export declare class BubbleOptionFactory {
    create(): BubbleOptions;
}
export declare class PgBubble {
    options: BubbleOptions;
    id: number;
    xPos: number;
    yPos: number;
    xTarget: number;
    yTarget: number;
    opacity: number;
    speed: number;
    size: number;
    _rotationFactor: number;
    _rotationLg: number;
    _rotDirection: number;
    rotation: number;
    canDestroy: boolean;
    deleteStartFrame: any;
    opacityStep: any;
    state: 'running' | 'deleting';
    constructor(options: BubbleOptions);
    update(frame: any): void;
    runningFrame(frame: any): void;
    deletingFrame(frame: any): void;
    delete(): void;
    setRandomVelocity(): void;
}
export declare class PgBubbleService {
    status: 'running' | 'paused' | 'stopped';
    bubbles: PgBubble[];
    maxBubbles: number;
    frames: number;
    animationFrameRef: any;
    constructor();
    update(): void;
    start(): void;
    stop(): void;
    addBubble(bubble?: {
        x: number;
        y: number;
    }): void;
    static ɵfac: i0.ɵɵFactoryDef<PgBubbleService, never>;
    static ɵprov: i0.ɵɵInjectableDef<PgBubbleService>;
}