65 lines
2.1 KiB
C#
65 lines
2.1 KiB
C#
using UnityEngine;
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using PathBerserker2d;
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using BaseGames.Enemies;
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namespace BaseGames.Enemies.Navigation
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{
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/// <summary>
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/// PathBerserker2d 导航代理包装器（架构 07_EnemyModule §5）。
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/// 实现 IPathAgent 接口，使 EnemyBase 和 BD Task 无需直接依赖 PB2d 类型。
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/// PB2d API：UpdatePath(Vector2)、Stop()、TransformBasedMovement.movementSpeed、IsFollowingAPath。
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/// </summary>
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[RequireComponent(typeof(NavAgent))]
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[RequireComponent(typeof(TransformBasedMovement))]
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public class EnemyNavAgent : MonoBehaviour, IPathAgent
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{
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private NavAgent _navAgent;
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private TransformBasedMovement _movement;
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/// <summary>正在沿路径移动时为 true。</summary>
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public bool IsMoving => _navAgent != null && _navAgent.IsFollowingAPath;
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public event System.Action OnNavPathFailed;
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private void Awake()
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{
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_navAgent = GetComponent<NavAgent>();
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_movement = GetComponent<TransformBasedMovement>();
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}
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public void RequestMoveTo(Vector2 target)
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{
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_navAgent?.UpdatePath(target);
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}
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public void StopNavigation()
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{
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_navAgent?.Stop();
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}
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public bool IsAtDestination()
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{
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if (_navAgent == null) return true;
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// 已停止 OR 在目标线段上且不再跟随路径
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return _navAgent.IsIdle;
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}
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public void SetSpeed(float speed)
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{
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if (_movement != null) _movement.movementSpeed = speed;
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}
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public bool IsNearEdge()
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{
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// 双射线检测：脚下前方是否有地面
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if (_navAgent == null) return false;
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var origin = (Vector2)transform.position;
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var facing = transform.localScale.x >= 0f ? Vector2.right : Vector2.left;
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var groundMask = ~0; // 检测所有层；可收窄至 Ground 层
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bool groundAhead = Physics2D.Raycast(origin + facing * 0.3f, Vector2.down, 0.5f, groundMask);
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return !groundAhead;
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}
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}
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}
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