/**
 * CameraShake.ts
 *
 * Trauma-based camera shake: Perlin noise sampling,
 * configurable decay, multi-layer shake, and intensity control.
 *
 * @module camera
 */
export interface ShakeLayer {
    id: string;
    trauma: number;
    decay: number;
    frequency: number;
    amplitude: number;
    rotationAmount: number;
}
export interface ShakeOutput {
    offsetX: number;
    offsetY: number;
    rotation: number;
}
export declare class CameraShake {
    private layers;
    private time;
    addLayer(id: string, config?: Partial<ShakeLayer>): void;
    removeLayer(id: string): void;
    addTrauma(layerId: string, amount: number): void;
    setTrauma(layerId: string, amount: number): void;
    update(dt: number): ShakeOutput;
    private noise;
    getTrauma(layerId: string): number;
    isShaking(): boolean;
}
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