120 lines
4.6 KiB
C#
120 lines
4.6 KiB
C#
using BaseGames.Core.Events;
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using MoreMountains.Feedbacks;
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using UnityEngine;
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namespace BaseGames.World
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{
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/// <summary>
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/// 单向触发机关。支持玩家按键/玩家接触/攻击三种触发方式。
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/// 通过 VoidEventChannelSO 零耦合激活/停用目标（门/升降台/灯光等）。
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/// _isOneShot = true 时激活状态持久化到 WorldStateRegistry。
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/// </summary>
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[RequireComponent(typeof(Collider2D))]
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public class DirectionalInteractable : MonoBehaviour, IInteractable
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{
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public enum TriggerSide { Left, Right, Top, Any }
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public enum TriggerCondition { PlayerAttack, PlayerBody, InteractKey }
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[Header("触发条件")]
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[SerializeField] private TriggerSide _triggerSide = TriggerSide.Any;
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[SerializeField] private TriggerCondition _triggerCondition = TriggerCondition.InteractKey;
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[Header("行为")]
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[SerializeField] private bool _isOneShot;
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[SerializeField] private string _interactableId;
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[Header("事件频道")]
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[SerializeField] private VoidEventChannelSO _activationChannel;
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[SerializeField] private VoidEventChannelSO _deactivationChannel;
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[Header("反馈")]
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[SerializeField] private MMF_Player _activateFeedback;
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[Header("持久化")]
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[SerializeField] private WorldStateRegistry _worldState;
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private bool _activated;
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// ── IInteractable ─────────────────────────────────────────────────────
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public bool CanInteract => !(_isOneShot && _activated);
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public string InteractPrompt => _activated ? "已激活" : "交互";
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public void Interact(Transform player)
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{
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if (_triggerCondition != TriggerCondition.InteractKey) return;
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if (!CheckSide(player.position)) return;
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TryActivate();
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}
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public void OnPlayerEnterRange(Transform player) { }
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public void OnPlayerExitRange() { }
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// ── Physics Triggers ──────────────────────────────────────────────────
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private void OnTriggerEnter2D(Collider2D other)
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{
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if (_triggerCondition != TriggerCondition.PlayerBody) return;
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if (!other.CompareTag("Player")) return;
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if (!CheckSide(other.transform.position)) return;
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TryActivate();
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}
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private void OnTriggerExit2D(Collider2D other)
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{
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if (_triggerCondition != TriggerCondition.PlayerBody) return;
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if (!other.CompareTag("Player") || _isOneShot) return;
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_activated = false;
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_deactivationChannel?.Raise();
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}
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// ── Damage-based Trigger（由 HurtBox/TileDamageReceiver 调用）────────
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public void TryInteractFromDamage(BaseGames.Combat.DamageInfo info)
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{
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if (_triggerCondition != TriggerCondition.PlayerAttack) return;
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if (!CheckSide(info.SourcePosition)) return;
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TryActivate();
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}
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// ── Core ──────────────────────────────────────────────────────────────
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protected void TryActivate()
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{
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if (_isOneShot && _activated) return;
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_activated = true;
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_activateFeedback?.PlayFeedbacks();
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_activationChannel?.Raise();
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if (_isOneShot && !string.IsNullOrEmpty(_interactableId))
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_worldState?.SetFlag("mechanism_" + _interactableId);
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}
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private bool CheckSide(Vector2 sourcePos)
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{
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if (_triggerSide == TriggerSide.Any) return true;
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var dir = (sourcePos - (Vector2)transform.position).normalized;
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return _triggerSide switch
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{
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TriggerSide.Left => dir.x < -0.4f,
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TriggerSide.Right => dir.x > 0.4f,
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TriggerSide.Top => dir.y > 0.4f,
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_ => true
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};
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}
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private void Start()
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{
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// 读档恢复：若机关已激活则静默还原
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if (_isOneShot && !string.IsNullOrEmpty(_interactableId)
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&& _worldState != null
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&& _worldState.HasFlag("mechanism_" + _interactableId))
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{
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_activated = true;
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_activationChannel?.Raise();
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}
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}
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}
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}
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