89 lines
3.2 KiB
C#
89 lines
3.2 KiB
C#
using System.Collections;
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using Animancer;
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using UnityEngine;
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namespace BaseGames.Enemies.Abilities
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{
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/// <summary>
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/// 带动画的天花板跌落能力：播放 Fall 动画 + 切换物理体为 Dynamic 自由下落，落地后启用接触伤害并恢复巡逻。
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/// 取代 sealed 的 CeilingDropAbility，动画所有权完整封装在本能力中。
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/// 可复用于任何需要从天花板落下并造成接触伤害的敌人。
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/// </summary>
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[RequireComponent(typeof(Rigidbody2D))]
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public class AnimatedCeilingDropAbility : EnemyAbilityBase
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{
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[Header("动画")]
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[Tooltip("下落循环动画（旋转下落姿态，循环播放直到落地）")]
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[SerializeField] private ClipTransition _fallLoopClip;
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[Header("物理下落")]
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[Tooltip("切换 Dynamic 后使用的重力倍率")]
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[SerializeField] private float _fallGravityScale = 3.5f;
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[Tooltip("下落超时保护（秒），超时后强制继续执行")]
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[SerializeField] private float _maxFallTime = 3f;
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[SerializeField] private LayerMask _groundMask;
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[Header("落地后")]
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[Tooltip("落地后恢复帧延迟（秒），之后切换为 Patrol 阶段")]
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[SerializeField] private float _recoveryTime = 0.1f;
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[SerializeField] private BodyContactDamage _contactDamage;
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private Rigidbody2D _rb;
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protected override void Awake()
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{
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base.Awake();
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_rb = GetComponentInParent<Rigidbody2D>();
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}
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protected override IEnumerator ExecuteCoroutine()
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{
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Phase = AbilityRunState.Active;
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// 播放下落动画（能力脚本负责动画所有权）
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if (_fallLoopClip.Clip != null)
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_animancer.Play(_fallLoopClip);
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// 切换物理：Kinematic → Dynamic + 重力
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var origBodyType = _rb.bodyType;
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var origGravScale = _rb.gravityScale;
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_rb.bodyType = RigidbodyType2D.Dynamic;
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_rb.gravityScale = _fallGravityScale;
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_rb.velocity = Vector2.zero;
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// 等待落地（超时保护）
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float elapsed = 0f;
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while (elapsed < _maxFallTime)
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{
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elapsed += Time.fixedDeltaTime;
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yield return new WaitForFixedUpdate();
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if (elapsed > 0.05f && IsGrounded()) break;
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}
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_rb.velocity = Vector2.zero;
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// 落地后启用接触伤害
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if (_contactDamage != null)
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_contactDamage.enabled = true;
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yield return EnemyAbilityWaits.Get(_recoveryTime);
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// SetAiPhase(Patrol) 自动播放 AnimConfig.Walk（地面移动动画）
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_enemy.SetAiPhase(AiPhase.Patrol);
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}
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private bool IsGrounded()
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{
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var hit = Physics2D.Raycast(_rb.position, Vector2.down, 0.6f, _groundMask);
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return hit.collider != null;
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}
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protected override void OnInterrupted(InterruptReason reason)
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{
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if (_rb != null)
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_rb.velocity = Vector2.zero;
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if (_contactDamage != null)
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_contactDamage.enabled = false;
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}
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}
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}
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