interface ParticleConfig {
    x: number;
    y: number;
    vx?: number;
    vy?: number;
    size?: number;
    color?: string;
    maxLife?: number;
    gravity?: number;
    rotation?: number;
    rotationSpeed?: number;
    shape?: 'star' | 'rectangle' | 'circle' | 'snowflake' | 'bubble' | 'cross' | 'oval';
    wobbleAmplitude?: number;
    wobbleSpeed?: number;
    windDrift?: number;
    image?: HTMLImageElement;
    initialScale?: number;
    scaleUpDuration?: number;
}
interface EffectOptions {
    colors?: string[];
    particleCount?: number;
    particleSize?: number;
    gravity?: number;
    maxLife?: number;
    velocity?: number;
    throttle?: number;
    minMoveDistance?: number;
}
interface EngineOptions {
    canvas?: HTMLCanvasElement;
    container?: HTMLElement;
}
interface Effect {
    onMouseMove: (x: number, y: number) => Particle[];
    throttle?: number;
    minMoveDistance?: number;
}
type EffectFunction = (x: number, y: number, options?: EffectOptions) => void;

declare class Particle {
    x: number;
    y: number;
    vx: number;
    vy: number;
    size: number;
    color: string;
    life: number;
    maxLife: number;
    gravity: number;
    opacity: number;
    rotation: number;
    rotationSpeed: number;
    shape: 'star' | 'rectangle' | 'circle' | 'snowflake' | 'bubble' | 'cross' | 'oval';
    wobbleAmplitude: number;
    wobbleSpeed: number;
    wobblePhase: number;
    windDrift: number;
    image?: HTMLImageElement;
    scale: number;
    initialScale: number;
    scaleUpDuration: number;
    constructor(config: ParticleConfig);
    update(): void;
    isDead(): boolean;
    draw(ctx: CanvasRenderingContext2D): void;
}

declare class ImageLoader {
    private static images;
    private static loading;
    static loadImage(src: string): Promise<HTMLImageElement>;
    static loadBubbles(basePath?: string): Promise<HTMLImageElement[]>;
    static loadSnowflakes(basePath?: string): Promise<HTMLImageElement[]>;
    static getRandomBubble(): HTMLImageElement | null;
    static getRandomSnowflake(): HTMLImageElement | null;
    static isLoaded(): boolean;
    static clear(): void;
}

export { type EffectOptions as E, ImageLoader as I, Particle as P, type Effect as a, type ParticleConfig as b, type EngineOptions as c, type EffectFunction as d };