import { default as p5ex } from '../p5exInterface';
import { ShapeColor } from '../color';
/**
 * (To be filled)
 */
export declare abstract class ScreenEffect {
    protected readonly p: p5ex;
    constructor(p: p5ex);
    abstract apply(): void;
    abstract reset(): void;
}
/**
 * (To be filled)
 */
export declare class ScreenShake extends ScreenEffect {
    dampingRatio: number;
    protected amplitude: number;
    protected offsetX: number;
    protected offsetY: number;
    constructor(p: p5ex, dampingRatio?: number);
    apply(): void;
    set(amplitude: number): void;
    reset(): void;
    cancel(): void;
}
/**
 * (To be filled)
 */
export declare class ScreenFlash extends ScreenEffect {
    protected readonly flashColor: ShapeColor;
    protected alphaValue: number;
    protected valueChange: number;
    constructor(p: p5ex, flashColor?: p5.Color);
    apply(): void;
    set(initialAlphaValue: number, durationSeconds: number): void;
    reset(): void;
}