using UnityEngine;

namespace HotUpdate.Gameplay
{
    /// <summary>Plays Idle or Walk on the camp guide from how far the root moved.</summary>
    public sealed class ExplorerLocomotion : MonoBehaviour
    {
        Animator _animator;
        bool _hasMotion;
        Vector3 _last;

        void Awake()
        {
            _animator = GetComponentInChildren<Animator>();
            if (_animator != null)
            {
                _animator.applyRootMotion = false;
                foreach (var parameter in _animator.parameters)
                    if (parameter.name == "Motion" && parameter.type == AnimatorControllerParameterType.Int)
                        _hasMotion = true;
            }
            _last = transform.position;
        }

        void LateUpdate()
        {
            if (_animator == null || !_hasMotion) return;
            Vector3 delta = transform.position - _last;
            _last = transform.position;
            float speed = new Vector2(delta.x, delta.z).magnitude / Mathf.Max(Time.deltaTime, 0.0001f);
            _animator.SetInteger("Motion", speed > 0.04f ? 1 : 0);
        }
    }
}