115 lines
3.9 KiB
C#
115 lines
3.9 KiB
C#
using UnityEngine;
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using UnityEngine.UI;
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using System.Collections;
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namespace GameFramework
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{
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/// <summary>
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/// 魂灵掉落物 —— 敌人被灵灯击杀后掉落。
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/// 从敌人位置飞向 HUD 魂灵计数图标，到达后加分并自毁。
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/// </summary>
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public class SoulDrop : MonoBehaviour
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{
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[Header("飞行参数")]
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[Tooltip("飞向 HUD 的飞行时间（秒）")]
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[SerializeField] private float flyDuration = 0.8f;
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[Tooltip("每个掉落物的分数")]
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[SerializeField] private int scoreValue = 1;
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[Header("延迟")]
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[Tooltip("出生后的随机延迟范围（秒），避免所有掉落物同时起飞")]
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[SerializeField] private float delayMin = 0f;
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[SerializeField] private float delayMax = 0.3f;
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private RectTransform _targetUI;
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private SpriteRenderer _sr;
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private void Awake()
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{
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_sr = GetComponent<SpriteRenderer>();
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}
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/// <summary>
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/// 初始化掉落物：设置目标 UI 并启动飞行协程。
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/// </summary>
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public void Initialize(RectTransform targetUI)
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{
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_targetUI = targetUI;
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StartCoroutine(DelayedFly());
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}
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private IEnumerator DelayedFly()
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{
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// 随机延迟，让掉落物有先后起飞的效果
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float delay = Random.Range(delayMin, delayMax);
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if (delay > 0f)
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yield return new WaitForSeconds(delay);
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yield return StartCoroutine(FlyToHUD());
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}
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private IEnumerator FlyToHUD()
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{
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Vector3 startPos = transform.position;
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Camera cam = Camera.main;
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if (cam == null || _targetUI == null)
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{
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// 降级处理：直接加分
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AddScoreAndDestroy();
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yield break;
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}
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// 目标：HUD 魂灵图标的屏幕位置
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Vector3 targetScreenPos = _targetUI.position;
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// 保持深度一致，避免转换出错
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float depth = Mathf.Abs(cam.WorldToScreenPoint(startPos).z);
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targetScreenPos.z = depth;
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Vector3 targetWorldPos = cam.ScreenToWorldPoint(targetScreenPos);
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float elapsed = 0f;
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while (elapsed < flyDuration)
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{
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elapsed += Time.deltaTime;
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float t = Mathf.Clamp01(elapsed / flyDuration);
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// 带弧度的飞行轨迹（先高后低）
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float arc = Mathf.Sin(t * Mathf.PI) * 0.5f;
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Vector3 pos = Vector3.Lerp(startPos, targetWorldPos, t);
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pos.y += arc;
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transform.position = pos;
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// 逐渐缩小 + 旋转
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float scale = Mathf.Lerp(1f, 0.3f, t);
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transform.localScale = Vector3.one * scale;
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transform.Rotate(0, 0, 360f * Time.deltaTime);
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// 渐隐效果（最后 30% 开始变淡）
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if (_sr != null && t > 0.7f)
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{
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float fadeT = (t - 0.7f) / 0.3f;
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_sr.color = new Color(_sr.color.r, _sr.color.g, _sr.color.b, 1f - fadeT);
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}
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yield return null;
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}
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AddScoreAndDestroy();
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}
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private void AddScoreAndDestroy()
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{
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// 确保 ScoreManager 存在（直接从 Gameplay 场景启动时可能没有）
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if (ScoreManager.Instance == null)
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{
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var go = new GameObject("ScoreManager");
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go.AddComponent<ScoreManager>();
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Debug.Log("[SoulDrop] 自动创建 ScoreManager");
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}
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Debug.Log($"[SoulDrop] 加分 +{scoreValue}，当前总分: {ScoreManager.Instance.CurrentScore + scoreValue}");
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ScoreManager.Instance.AddScore(scoreValue);
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Destroy(gameObject);
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}
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}
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}
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