52 lines
2.0 KiB
C#
52 lines
2.0 KiB
C#
using UnityEngine;
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namespace BaseGames.World.Map
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{
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/// <summary>
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/// 将玩家世界坐标转换为地图格子坐标，供 MapPanel 显示玩家位置图标（架构 15_MapShopModule §1.4）。
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/// 挂在 Player GameObject 上（LateUpdate 每帧计算）。
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/// </summary>
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public class MapPlayerTracker : MonoBehaviour
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{
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[SerializeField] private Transform _playerTransform;
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[SerializeField] private MapDatabaseSO _database;
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[Header("世界坐标 → 格子坐标换算参数")]
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[SerializeField] private float _worldUnitsPerCell = 18f; // 1 格 = N 世界单位
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/// <summary>玩家当前所在房间 ID（用于地图高亮当前房间）。</summary>
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public string CurrentRoomId { get; private set; }
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/// <summary>玩家在当前格子房间内的归一化坐标（0~1）。</summary>
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public Vector2 NormalizedPositionInRoom { get; private set; }
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private void LateUpdate()
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{
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if (_playerTransform == null || _database?.AllRooms == null) return;
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Vector2 worldPos = _playerTransform.position;
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Vector2Int cellPos = WorldToCell(worldPos);
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foreach (var room in _database.AllRooms)
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{
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if (room == null) continue;
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var rect = new RectInt(room.GridPosition, room.GridSize);
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if (rect.Contains(cellPos))
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{
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CurrentRoomId = room.RoomId;
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Vector2 inRoom = (Vector2)(cellPos - room.GridPosition);
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NormalizedPositionInRoom = new Vector2(
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inRoom.x / Mathf.Max(1, room.GridSize.x),
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inRoom.y / Mathf.Max(1, room.GridSize.y));
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return;
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}
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}
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}
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private Vector2Int WorldToCell(Vector2 worldPos)
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=> new(
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Mathf.FloorToInt(worldPos.x / _worldUnitsPerCell),
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Mathf.FloorToInt(worldPos.y / _worldUnitsPerCell));
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}
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}
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