using UnityEngine;

namespace HotUpdate.Gameplay
{
    /// <summary>Placeholder explorer: swings the authored legs while the root is moved.</summary>
    public sealed class ExplorerPuppet : MonoBehaviour
    {
        Transform _legL, _legR, _body;
        Vector3 _last;
        Vector3 _bodyRest;

        void Awake()
        {
            _legL = transform.Find("LegL");
            _legR = transform.Find("LegR");
            _body = transform.Find("Body");
            if (_body != null) _bodyRest = _body.localPosition;
            _last = transform.position;
        }

        void LateUpdate()
        {
            Vector3 delta = transform.position - _last;
            _last = transform.position;
            float speed = new Vector2(delta.x, delta.z).magnitude / Mathf.Max(Time.deltaTime, 0.0001f);
            bool walking = speed > 0.05f;
            float swing = walking ? Mathf.Sin(Time.time * 8f) * 32f : 0f;
            if (_legL != null) _legL.localRotation = Quaternion.Euler(swing, 0, 0);
            if (_legR != null) _legR.localRotation = Quaternion.Euler(-swing, 0, 0);
            if (_body != null)
                _body.localPosition = _bodyRest + Vector3.up * (walking ? Mathf.Abs(Mathf.Sin(Time.time * 8f)) * 0.05f : Mathf.Sin(Time.time * 2f) * 0.015f);
        }
    }
}