449 lines
15 KiB
C#
449 lines
15 KiB
C#
using System;
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using AibisDream.Framework;
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using DG.Tweening;
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using UnityEngine;
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using UnityEngine.EventSystems;
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namespace AibisDream
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{
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public class ShapeDragger : MonoBehaviour, IInteraction
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{
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#region 编辑器字段
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[SerializeField] private bool isInteractable = true;
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[Header("交互模式（由外界赋值控制）")]
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[SerializeField] private InteractionMode interactionMode = InteractionMode.Drag;
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[SerializeField] private int sortingLayerId;
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[SerializeField] private int dragLayerOrder;
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[SerializeField] private int pressLayerOrder;
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/// <summary>
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/// 闲置时层级，由 BlockShape 在 LoadVisualPrefab 后从 Visual 的 SortingGroup 赋值
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/// </summary>
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public int IdleLayerOrder { get; set; }
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[Header("长按设置")]
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[SerializeField] private float longPressDuration = 0.65f;
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[SerializeField] private float longPressScale = 1.1f;
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[SerializeField] private float shakeIntensity = 1f;
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[Header("拖拽跟随")]
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[SerializeField] private float dragFollowSpeed = 15f;
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#endregion
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// 拖拽状态
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private DragState _currentState = DragState.Placed;
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public DragState CurrentState
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{
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get => _currentState;
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set
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{
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if (value == _currentState) return;
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// 处理状态切换
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HandleStateChange(value);
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_currentState = value;
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}
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}
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// 长按相关状态
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private bool _isPressing;
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private bool _isLongPressTriggered;
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private bool _canEndDragOnClick; // 标记是否可以通过点击结束拖拽
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private Sequence _longPressSequence;
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private Vector3 _originalScale;
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private Vector3 _originalPosition;
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// 组件引用
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private BlockShape _blockShape;
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private EventTriggerEx _eventTrigger;
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public bool IsInteractable { get => isInteractable; set => isInteractable = value; }
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public InteractionMode InteractionMode { get => interactionMode; set => interactionMode = value; }
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public IBlockPuzzleGrid TargetGrid => BlockPuzzleSystem.Instance.grid;
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public IBlockShape BlockShape => _blockShape;
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#region 事件定义
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/// <summary>
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/// 拖拽开始事件 - 携带详细信息
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/// </summary>
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public event EventHandler<DragStartEventArgs> OnDragStartDetailed;
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/// <summary>
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/// 拖拽更新事件 - 携带详细信息
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/// </summary>
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public event EventHandler<DragUpdateEventArgs> OnDragUpdateDetailed;
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/// <summary>
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/// 拖拽结束事件 - 携带详细信息，由订阅者处理具体逻辑
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/// </summary>
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public event EventHandler<DragEndEventArgs> OnDragEndDetailed;
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/// <summary>
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/// 点击事件
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/// </summary>
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public event Action<BlockShape> OnClick;
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// 保留原有简单事件以保持向后兼容
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public event Action<BlockShape> OnDragStart;
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public event Action<BlockShape> OnDragUpdate;
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public event Action<BlockShape, bool> OnDragEnd;
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#endregion
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private void Awake()
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{
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_blockShape = GetComponent<BlockShape>();
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_eventTrigger = GetComponent<EventTriggerEx>();
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RegisterEvent();
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}
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private void OnDestroy()
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{
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_eventTrigger.UnRegister(EventTriggerType.PointerDown, OnPointerDown);
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_eventTrigger.UnRegister(EventTriggerType.PointerUp, OnPointerUp);
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_eventTrigger.UnRegister(EventTriggerType.PointerClick, OnPointerClick);
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// 清理 DOTween 动画
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_longPressSequence?.Kill();
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transform.DOKill();
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}
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private void RegisterEvent()
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{
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_eventTrigger.Register(EventTriggerType.PointerDown, OnPointerDown);
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_eventTrigger.Register(EventTriggerType.PointerUp, OnPointerUp);
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_eventTrigger.Register(EventTriggerType.PointerClick, OnPointerClick);
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}
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private void Update()
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{
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if (CurrentState == DragState.Dragging)
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{
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UpdateDrag();
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}
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}
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private void OnPointerDown(BaseEventData eventData)
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{
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if (eventData is not PointerEventData { button: PointerEventData.InputButton.Left })
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{
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return;
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}
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if (!isInteractable) return;
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// 如果当前正在拖拽中，标记可以通过点击结束
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if (CurrentState == DragState.Dragging)
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{
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_canEndDragOnClick = true;
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}
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// 只有在静止状态才能开始拖拽（点击模式不启动拖拽）
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else if (interactionMode == InteractionMode.Drag)
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{
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if (CurrentState == DragState.Placed)
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{
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// Placed状态：需要长按才能拖拽（防止误触）
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_isPressing = true;
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_isLongPressTriggered = false;
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_canEndDragOnClick = false; // 长按开始时不允许点击结束
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StartLongPressAnimation();
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}
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else if (CurrentState == DragState.Idle)
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{
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// Idle状态：点击立即开始拖拽（快速取用）
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StartDrag();
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}
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}
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}
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private void OnPointerUp(BaseEventData eventData)
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{
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if (eventData is not PointerEventData { button: PointerEventData.InputButton.Left })
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{
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return;
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}
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// 如果还在长按过程中（未完成），则取消
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if (_isPressing && !_isLongPressTriggered)
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{
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CancelLongPress();
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}
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}
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private void OnPointerClick(BaseEventData eventData)
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{
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if (eventData is not PointerEventData { button: PointerEventData.InputButton.Left })
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{
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return;
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}
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if (interactionMode == InteractionMode.Click)
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{
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if (!isInteractable) return;
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OnClick?.Invoke(_blockShape);
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PlayClickFeedback();
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return;
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}
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// 拖拽模式：只有在拖拽中且允许点击结束时才结束拖拽
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if (CurrentState == DragState.Dragging && _canEndDragOnClick)
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{
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EndDrag();
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_canEndDragOnClick = false; // 重置标记
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}
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}
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public void StartDrag()
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{
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if (!isInteractable) return;
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// 记录原始位置
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_originalPosition = transform.position;
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CurrentState = DragState.Dragging;
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// 创建事件参数
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var args = new DragStartEventArgs
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{
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Shape = _blockShape,
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StartPosition = transform.position
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};
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// 触发详细事件
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OnDragStartDetailed?.Invoke(this, args);
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// 触发兼容事件
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OnDragStart?.Invoke(_blockShape);
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}
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public void EndDrag()
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{
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// 清理长按状态
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CancelLongPress();
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// 创建事件参数，由订阅者处理具体逻辑
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var args = new DragEndEventArgs
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{
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Shape = _blockShape,
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EndPosition = transform.position,
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FinalState = DragState.Idle, // 默认状态
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IsHandled = false,
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ResultType = DragEndResultType.None
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};
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// 触发事件，让订阅者处理回收、吸附等逻辑
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OnDragEndDetailed?.Invoke(this, args);
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// 根据事件处理结果更新状态
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if (args.IsHandled)
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{
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CurrentState = args.FinalState;
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// 应用视觉状态
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ApplyVisualState(args.FinalState);
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}
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else
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{
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// 未被处理，恢复原状
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CurrentState = DragState.Idle;
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transform.localScale = Vector3.one;
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// 可选：播放未吸附的动画（如弹回）
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PlayDropAnimation();
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}
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// 触发兼容事件
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OnDragEnd?.Invoke(_blockShape, CurrentState == DragState.Placed);
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}
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/// <summary>
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/// 应用视觉状态
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/// </summary>
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private void ApplyVisualState(DragState state)
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{
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switch (state)
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{
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case DragState.Placed:
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transform.localScale = Vector3.one;
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break;
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case DragState.Idle:
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transform.localScale = Vector3.one;
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break;
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}
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}
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/// <summary>
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/// 播放放下动画（未吸附时）
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/// </summary>
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private void PlayDropAnimation()
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{
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// 可以在这里实现弹回动画或其他视觉反馈
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transform.localScale = Vector3.one;
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}
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public void UpdateDrag()
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{
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// 检测右键点击进行旋转（仅在拖动中）
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if (Input.GetMouseButtonDown(1)) // 1 = 右键
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{
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_blockShape.RotateClockwise();
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// 旋转后立即重置位置，避免 Lerp 造成的延迟感
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var snappedPos = GetMouseWorldPosition() - _blockShape.GetCenterPosition();
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transform.position = snappedPos;
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}
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// 更新拖拽位置（带轻微滞后感）
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var targetPos = GetMouseWorldPosition() - _blockShape.GetCenterPosition();
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transform.position = Vector3.Lerp(transform.position, targetPos, Time.deltaTime * dragFollowSpeed);
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// 创建事件参数
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var args = new DragUpdateEventArgs
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{
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Shape = _blockShape,
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CurrentPosition = transform.position
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};
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// 触发详细事件 - 由订阅者处理 Snap 检查和预览显示
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OnDragUpdateDetailed?.Invoke(this, args);
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// 触发兼容事件
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OnDragUpdate?.Invoke(_blockShape);
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}
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private void HandleStateChange(DragState newState)
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{
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var sortingGroup = _blockShape?.SortingGroup;
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if (sortingGroup == null) return;
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sortingGroup.sortingLayerID = sortingLayerId;
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switch (newState)
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{
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case DragState.Idle:
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case DragState.Dragging:
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sortingGroup.sortingOrder = dragLayerOrder;
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break;
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case DragState.Placed:
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sortingGroup.sortingOrder = IdleLayerOrder;
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break;
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}
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}
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private Vector3 GetMouseWorldPosition()
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{
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var mouseWorldPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
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return new Vector3(mouseWorldPos.x, mouseWorldPos.y, 0);
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}
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private void StartLongPressAnimation()
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{
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_originalScale = transform.localScale;
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_originalPosition = transform.localPosition;
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// 开始抖动时提升层级
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var sortingGroup = _blockShape?.SortingGroup;
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if (sortingGroup != null)
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{
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sortingGroup.sortingLayerID = sortingLayerId;
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sortingGroup.sortingOrder = dragLayerOrder;
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}
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// 杀掉之前的动画
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_longPressSequence?.Kill();
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// 创建 DOTween 序列
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_longPressSequence = DOTween.Sequence();
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// 放大效果（使用 EaseOutQuad）
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_longPressSequence.Append(
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transform.DOScale(_originalScale * longPressScale, longPressDuration)
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.SetEase(Ease.OutQuad)
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);
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// 抖动效果（使用 DOShakePosition，与放大同时进行）
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_longPressSequence.Join(
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transform.DOShakePosition(
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longPressDuration-0.35f,
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new Vector3(shakeIntensity, shakeIntensity, 0), // 只在 X 轴抖动
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60, // 振动频率
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90, // 随机性
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false, // 不淡出
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true // 使用局部坐标
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)
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.SetEase(Ease.OutCubic)
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);
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// 完成时的回调
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_longPressSequence.OnComplete(() =>
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{
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_isLongPressTriggered = true;
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StartDrag();
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});
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// 设置为不自动销毁
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_longPressSequence.SetAutoKill(true);
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}
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private void CancelLongPress()
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{
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// 杀掉 DOTween 动画
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if (_longPressSequence != null && _longPressSequence.IsActive())
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{
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_longPressSequence.Kill();
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_longPressSequence = null;
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}
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// 恢复原始状态
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if (_isPressing && !_isLongPressTriggered)
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{
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transform.DOKill(); // 确保所有动画都停止
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transform.localScale = _originalScale;
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transform.localPosition = _originalPosition;
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// 抖动但没拿起来，降回原层级
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var sortingGroup = _blockShape?.SortingGroup;
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if (sortingGroup != null)
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{
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sortingGroup.sortingOrder = IdleLayerOrder;
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}
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}
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_isPressing = false;
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_isLongPressTriggered = false;
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_canEndDragOnClick = false;
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}
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/// <summary>
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/// 恢复点击反馈状态（缩放与层级），供外部在切换选中或切换模式时调用
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/// </summary>
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public void ResetClickFeedback()
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{
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transform.DOKill();
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transform.localScale = Vector3.one;
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var sortingGroup = _blockShape?.SortingGroup;
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if (sortingGroup != null)
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{
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sortingGroup.sortingOrder = IdleLayerOrder;
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}
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}
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private void PlayClickFeedback()
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{
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transform.DOScale(1.05f, 0.15f).SetEase(Ease.OutQuad);
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var sortingGroup = _blockShape?.SortingGroup;
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if (sortingGroup != null)
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{
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sortingGroup.sortingOrder = pressLayerOrder;
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}
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}
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// 实现IInteraction接口
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public bool IsActive => true;
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public bool IsAvailable => true;
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public GameObject GetGameObject() => gameObject;
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}
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}
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