/**
 * EnvironmentPresets.ts
 *
 * Pre-built environment configurations for skybox, lighting, fog, and atmosphere.
 * Provides time-of-day and weather systems.
 *
 * @module environment
 */
import { IVector3 } from '../physics/PhysicsTypes';
export interface SkyboxConfig {
    type: 'color' | 'gradient' | 'hdri' | 'procedural';
    topColor: string;
    bottomColor: string;
    horizonColor?: string;
    hdriAsset?: string;
    turbidity?: number;
    rayleigh?: number;
    sunPosition?: IVector3;
}
export interface LightConfig {
    type: 'directional' | 'ambient' | 'point' | 'spot';
    color: string;
    intensity: number;
    direction?: IVector3;
    position?: IVector3;
    castShadows?: boolean;
    shadowMapSize?: number;
}
export interface FogConfig {
    type: 'none' | 'linear' | 'exponential' | 'exponential2';
    color: string;
    near?: number;
    far?: number;
    density?: number;
}
export interface AtmosphereConfig {
    ambientOcclusion: boolean;
    bloom: boolean;
    bloomIntensity: number;
    bloomThreshold: number;
    toneMappingExposure: number;
    colorGrading?: {
        saturation: number;
        contrast: number;
        temperature: number;
    };
}
export interface EnvironmentConfig {
    id: string;
    name: string;
    skybox: SkyboxConfig;
    lights: LightConfig[];
    fog: FogConfig;
    atmosphere: AtmosphereConfig;
}
export interface TimeOfDayConfig {
    sunriseHour: number;
    sunsetHour: number;
    currentHour: number;
    daySpeed: number;
}
export interface WeatherState {
    type: 'clear' | 'cloudy' | 'rain' | 'storm' | 'snow' | 'fog';
    intensity: number;
    windDirection: IVector3;
    windSpeed: number;
    transitionProgress: number;
}
export declare const PRESET_SUNNY_DAY: EnvironmentConfig;
export declare const PRESET_SUNSET: EnvironmentConfig;
export declare const PRESET_NIGHT: EnvironmentConfig;
export declare const PRESET_OVERCAST: EnvironmentConfig;
export declare const PRESET_SCIFI: EnvironmentConfig;
export declare const ALL_PRESETS: EnvironmentConfig[];
export declare class EnvironmentManager {
    private currentEnv;
    private timeOfDay;
    private weather;
    constructor(preset?: EnvironmentConfig);
    setEnvironment(config: EnvironmentConfig): void;
    getEnvironment(): EnvironmentConfig;
    setPreset(presetId: string): boolean;
    getPresetIds(): string[];
    setTimeOfDay(hour: number): void;
    advanceTime(deltaSeconds: number): void;
    getTimeOfDay(): TimeOfDayConfig;
    private updateSunFromTime;
    setWeather(type: WeatherState['type'], intensity?: number): void;
    getWeather(): WeatherState;
    updateWeatherTransition(dt: number): void;
}
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