import React from 'react';
import * as THREE from 'three';
import { AnimationConfigMap, AnimationType } from '../types/animation';
import { VRM } from '@pixiv/three-vrm';
/**
 * Animation constants used throughout the animation system
 */
export declare const VRM_ANIMATION_CONSTANT: {
    /** Duration for fade in/out transitions (seconds) */
    readonly FADE_DURATION: 0.3;
    /** Default animation duration (seconds) */
    readonly DEFAULT_DURATION: 0.5;
    /** Animation frame rate limit for performance */
    readonly FRAME_RATE_LIMIT: 60;
};
/**
 * Hook for handling VRM character animations directly with the Animation Mixer
 *
 * @param animationConfigMap - Configuration map for all possible animations
 * @param animationClips - Available animation clips for the character
 * @param vrmRef - Reference to the VRM model instance
 * @param animationRef - Reference to the current animation type
 * @param onAnimationComplete - Callback function to call when animation completes
 * @returns The animation controller with play method
 */
export declare const useVRMAnimationHandler: (animationRef: React.RefObject<AnimationType | undefined>, animationConfigMap: AnimationConfigMap, animationClips: Record<string, THREE.AnimationClip>, vrmRef: React.RefObject<VRM | null>, onAnimationComplete?: (type: AnimationType) => void) => void;