using UnityEngine;
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using DG.Tweening;
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/// <summary>
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/// 控制天子看板战箱子（回血时）掉落和收集动画的组件。
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/// 动画序列: 抛射弧形 -> 多次弹跳 -> 等待 -> 飞向收集点 -> 销毁
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/// </summary>
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[RequireComponent(typeof(RectTransform))]
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public class TianziBillboradBox : MonoBehaviour
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{
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private RectTransform rectTransform;
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[Header("1. 抛射阶段 (从Boss位置)")]
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[SerializeField]
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[Tooltip("初始位置的X/Y偏移量（像素单位）。箱子将从[Boss位置 + 偏移]开始抛射。")]
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Vector2 initialPositionOffset = Vector2.zero; // NEW: 初始位置偏移
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[SerializeField]
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[Tooltip("箱子抛射的持续时间（秒）。")]
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float throwDuration = 0.6f;
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[SerializeField]
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[Tooltip("抛射的缓动动画类型。\n" +
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"Ease.OutQuad: 模拟抛物线，开始快，落地慢。")]
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Ease throwEase = Ease.OutQuad;
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[SerializeField]
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[Tooltip("抛射的基础水平距离（像素单位）。")]
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float throwHorizontalDistance = 200f;
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[SerializeField]
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[Tooltip("抛射距离的随机变化范围（百分比）。")]
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[Range(0f, 1f)]
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float throwDistanceRandomness = 0.3f;
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[SerializeField]
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[Tooltip("抛射的弧形最高点，相对于起点的高度（像素单位）。")]
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float throwArcHeight = 150f;
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[SerializeField]
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[Tooltip("抛射落地的最小垂直距离（像素单位），即比起点低多少。")]
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float minThrowVerticalDrop = 120f;
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[SerializeField]
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[Tooltip("抛射落地的最大垂直距离（像素单位），即比起点低多少。")]
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float maxThrowVerticalDrop = 180f;
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[Header("2. 弹跳阶段")]
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[SerializeField]
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[Tooltip("弹跳次数（1-3次）。")]
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[Range(1, 3)]
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int bounceCount = 2;
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[SerializeField]
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[Tooltip("第一次弹跳的高度（像素单位）。")]
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float firstBounceHeight = 80f;
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[SerializeField]
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[Tooltip("第二次弹跳的高度（像素单位）。")]
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float secondBounceHeight = 50f;
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[SerializeField]
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[Tooltip("第三次弹跳的高度（像素单位）。")]
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float thirdBounceHeight = 30f;
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[SerializeField]
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[Tooltip("每次弹跳的基础水平距离（像素单位）。")]
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float bounceHorizontalDistance = 100f;
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[SerializeField]
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[Tooltip("弹跳距离的随机变化范围（百分比）。")]
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[Range(0f, 1f)]
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float bounceDistanceRandomness = 0.4f;
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[SerializeField]
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[Tooltip("每次弹跳的持续时间（秒）。")]
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float bounceDuration = 0.3f;
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[SerializeField]
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[Tooltip("弹跳的缓动动画类型。")]
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Ease bounceEase = Ease.OutQuad;
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[Header("3. 等待阶段")]
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[SerializeField]
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[Tooltip("弹跳停止后等待的时间（秒）。")]
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float waitAfterBounce = 0.5f;
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[Header("4. 收集移动阶段 (飞向终点)")]
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[SerializeField]
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[Tooltip("箱子从地面移动到最终收集位置（rectBoxEnd）所需的时间（秒）。")]
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float moveDuration = 0.4f;
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[SerializeField]
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[Tooltip("移动时的缓动动画类型。\n" +
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"Ease.InSine: 实现先慢后快的加速效果。")]
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Ease moveEase = Ease.InSine;
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// ----------------------------------------------------------------------
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private void Awake()
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{
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rectTransform = GetComponent<RectTransform>();
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}
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/// <summary>
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/// 启动箱子动画序列
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/// </summary>
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/// <param name="startWorldPos">动画开始的世界坐标（例如 Boss 头像位置）</param>
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/// <param name="endWorldPos">动画结束的世界坐标（rectBoxEnd 的位置）</param>
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public void StartAnimation(Vector3 startWorldPos, Vector3 endWorldPos)
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{
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/// Debug.Log($"TianziBillboradBox startWorldPos {startWorldPos} endWorldPos {endWorldPos}");
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if (rectTransform == null)
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{
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rectTransform = GetComponent<RectTransform>();
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}
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// --- 0. 在开始动画前，将箱子移动到boss的父物体 ---
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Transform currentParent = transform.parent;
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if (currentParent != null)
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{
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Transform bossParent = currentParent.parent; // boss的父物体
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if (bossParent != null)
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{
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transform.SetParent(bossParent);
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transform.localScale = Vector3.one; // 将scale设置为1
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}
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}
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// --- 1. 计算并设置初始位置 (应用偏移) ---
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Vector3 actualStartPos = new Vector3(
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startWorldPos.x + initialPositionOffset.x / 100f,
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startWorldPos.y + initialPositionOffset.y / 100f,
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startWorldPos.z
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);
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rectTransform.position = actualStartPos; // MODIFIED: 使用偏移后的位置
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gameObject.SetActive(true);
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// --- 2. 随机选择抛射方向（左或右）和角度 ---
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bool throwRight = Random.Range(0, 2) == 1;
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float horizontalDirection = throwRight ? 1f : -1f;
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// 添加随机角度偏移
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float angleOffset = Random.Range(-45f, 45f);
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float angleRad = angleOffset * Mathf.Deg2Rad;
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// 计算带随机性的抛射距离
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float randomThrowDistance = throwHorizontalDistance *
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(1f + Random.Range(-throwDistanceRandomness, throwDistanceRandomness));
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// --- 3. 计算抛射终点位置 ---
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//计算随机的垂直下落距离
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float randomVerticalDrop = Random.Range(minThrowVerticalDrop, maxThrowVerticalDrop);
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Vector3 throwEndPos = new Vector3(
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actualStartPos.x + randomThrowDistance / 100 * Mathf.Cos(angleRad) * horizontalDirection, // MODIFIED
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actualStartPos.y - randomVerticalDrop / 100, // MODIFIED
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actualStartPos.z
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);
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// --- 4. 计算抛射控制点（用于弧形轨迹）---
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Vector3 controlPoint = new Vector3(
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actualStartPos.x + randomThrowDistance / 100 * Mathf.Cos(angleRad) * horizontalDirection * 0.5f, // MODIFIED
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actualStartPos.y + throwArcHeight / 100, // MODIFIED
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actualStartPos.z
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);
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// --- 5. 创建一个动画序列 ---
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Sequence animSequence = DOTween.Sequence();
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// --- 6. 抛射阶段（弧形轨迹）---
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animSequence.Append(
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rectTransform.DOPath(
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new Vector3[] { actualStartPos, controlPoint, throwEndPos }, // MODIFIED
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throwDuration,
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PathType.CatmullRom
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).SetEase(throwEase)
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);
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// --- 7. 弹跳阶段（向抛射方向继续跳1-3次）---
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Vector3 currentPos = throwEndPos;
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int actualBounceCount = Random.Range(1, bounceCount + 1); // 随机1-3次
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for (int i = 0; i < actualBounceCount; i++)
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{
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// 计算当前弹跳的高度
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float currentBounceHeight = i switch
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{
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0 => firstBounceHeight,
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1 => secondBounceHeight,
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_ => thirdBounceHeight
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};
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// 计算带随机性的弹跳距离
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float randomBounceDistance = bounceHorizontalDistance *
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(1f + Random.Range(-bounceDistanceRandomness, bounceDistanceRandomness));
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// 计算弹跳终点位置（继续向抛射方向移动）
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Vector3 bounceEndPos = new Vector3(
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currentPos.x + randomBounceDistance / 100 * horizontalDirection,
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currentPos.y,
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currentPos.z
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);
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// 弹跳控制点（弧形轨迹）
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Vector3 bounceControlPoint = new Vector3(
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currentPos.x + randomBounceDistance / 100 * horizontalDirection * 0.5f,
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currentPos.y + currentBounceHeight / 100,
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currentPos.z
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);
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// 添加弹跳动画（弧形轨迹）
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animSequence.Append(
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rectTransform.DOPath(
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new Vector3[] { currentPos, bounceControlPoint, bounceEndPos },
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bounceDuration,
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PathType.CatmullRom
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).SetEase(bounceEase)
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);
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currentPos = bounceEndPos; // 更新当前位置
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}
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// --- 8. 等待阶段 ---
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animSequence.AppendInterval(waitAfterBounce);
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// --- 9. 移动到终点 ---
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animSequence.Append(
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rectTransform.DOMove(endWorldPos, moveDuration)
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.SetEase(moveEase)
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);
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// --- 10. 动画播放完毕后销毁 ---
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animSequence.OnComplete(() =>
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{
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if (this != null && gameObject != null)
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{
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Destroy(gameObject);
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}
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});
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// --- 11. 关联生命周期 ---
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animSequence.SetTarget(this);
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}
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}
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