/**
 * HandTracker — Joint positions, gesture recognition, pinch/grab/point
 *
 * @version 1.0.0
 */
export type HandSide = 'left' | 'right';
export type GestureType = 'none' | 'pinch' | 'grab' | 'point' | 'fist' | 'open' | 'thumbsUp';
export type JointPosition = [number, number, number];
export interface HandState {
    side: HandSide;
    tracked: boolean;
    joints: Map<string, JointPosition>;
    gesture: GestureType;
    confidence: number;
    pinchStrength: number;
    gripStrength: number;
}
export declare class HandTracker {
    private hands;
    private gestureHistory;
    private maxHistory;
    constructor();
    private createDefaultState;
    /**
     * Update joint positions for a hand
     */
    updateJoints(side: HandSide, joints: Record<string, JointPosition>): void;
    /**
     * Update pinch/grip strength
     */
    updateStrength(side: HandSide, pinch: number, grip: number): void;
    /**
     * Detect gesture from joint positions
     */
    private detectGesture;
    getHand(side: HandSide): HandState;
    isTracked(side: HandSide): boolean;
    getGesture(side: HandSide): GestureType;
    getGestureHistory(): typeof this.gestureHistory;
    getJoint(side: HandSide, joint: string): JointPosition | undefined;
}
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