/*!
 * BVHEcctrl
 * https://github.com/pmndrs/BVHEcctrl
 * (c) 2025 @ErdongChen-Andrew
 * Released under the MIT License.
 */
/**
 * Physics formulas:
 * 1. F = m * a
 * 2. v = d / t     (constant velocity)
 * 3. a = Δv / t
 * 4. d = v0t + 1/2 * a * t^2
 * 5. v = v0 + a * t
 * 6. J = F * Δt
 * 7. Δv = F * Δt / m
 * 8. E = 1/2 * m * v^2
 * 9. F_drag = -kv
 *
 * Usefull formulas in ecctrl:
 * 1. pos += velocity * delta
 * 2. vel += acceleration * delta
 * 3. Fg = mass * gravity
 * 4. F(spring) = -k(x - x0)
 * 5. F(damping) = -c * v
 * 6. linVel = radius x angVel
 * 7. K < 1 / (Δt)^2    (60Hz => 3600)
 * 8. C < 2 / Δt    (60Hz => 120)
 */
import * as THREE from "three";
import React, { type ReactNode } from "react";
import type { MovementInput, CharacterAnimationStatus, FloatCheckType } from ".";
declare const _default: React.ForwardRefExoticComponent<EcctrlProps & React.RefAttributes<BVHEcctrlApi>>;
export default _default;
/**
 * Export values/features/functions
 */
export declare const characterStatus: CharacterStatus;
/**
 * Export ecctrl types
 */
export interface EcctrlProps extends Omit<React.ComponentProps<'group'>, 'ref'> {
    children?: ReactNode;
    debug?: boolean;
    colliderCapsuleArgs?: [radius: number, length: number, capSegments: number, radialSegments: number];
    paused?: boolean;
    delay?: number;
    gravity?: number;
    fallGravityFactor?: number;
    maxFallSpeed?: number;
    mass?: number;
    sleepTimeout?: number;
    slowMotionFactor?: number;
    turnSpeed?: number;
    maxWalkSpeed?: number;
    maxRunSpeed?: number;
    acceleration?: number;
    deceleration?: number;
    counterAccFactor?: number;
    airDragFactor?: number;
    jumpVel?: number;
    floatCheckType?: FloatCheckType;
    maxSlope?: number;
    floatHeight?: number;
    floatPullBackHeight?: number;
    floatSensorRadius?: number;
    floatSpringK?: number;
    floatDampingC?: number;
    collisionCheckIteration?: number;
    collisionPushBackVelocity?: number;
    collisionPushBackDamping?: number;
    collisionPushBackThreshold?: number;
}
export interface BVHEcctrlApi {
    group: THREE.Group | null;
    model: THREE.Group | null;
    resetLinVel: () => void;
    addLinVel: (v: THREE.Vector3) => void;
    setLinVel: (v: THREE.Vector3) => void;
    setMovement: (input: MovementInput) => void;
}
export interface CharacterStatus {
    position: THREE.Vector3;
    linvel: THREE.Vector3;
    quaternion: THREE.Quaternion;
    inputDir: THREE.Vector3;
    movingDir: THREE.Vector3;
    isOnGround: boolean;
    isOnMovingPlatform: boolean;
    animationStatus: CharacterAnimationStatus;
}