93 lines
2.5 KiB
C#
93 lines
2.5 KiB
C#
using System.Collections.Generic;
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using System.IO;
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using UnityEngine;
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public static class LocalImageLoader
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{
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/// <summary>
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/// 加载文件夹下的所有图片，返回 Texture2D 列表
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/// </summary>
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/// <param name="folderPath">图片文件夹完整路径</param>
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public static List<Texture2D> LoadImages(string folderPath)
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{
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List<Texture2D> textures = new List<Texture2D>();
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if (!Directory.Exists(folderPath))
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{
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Debug.LogError($"[LocalImageLoader] 文件夹不存在: {folderPath}");
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return textures;
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}
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string[] files = Directory.GetFiles(folderPath);
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foreach (string file in files)
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{
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if (!IsImageFile(file))
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continue;
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byte[] data = File.ReadAllBytes(file);
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Texture2D tex = new Texture2D(2, 2, TextureFormat.RGBA32, false);
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if (tex.LoadImage(data))
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{
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tex.name = Path.GetFileNameWithoutExtension(file);
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textures.Add(tex);
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}
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else
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{
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Object.Destroy(tex);
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Debug.LogWarning($"图片加载失败: {file}");
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}
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}
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return textures;
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}
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/// <summary>
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/// 加载单张本地图片
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/// </summary>
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/// <param name="filePath">图片完整路径</param>
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/// <returns>Texture2D，失败返回 null</returns>
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public static Texture2D LoadImage(string filePath)
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{
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if (!File.Exists(filePath))
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{
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Debug.LogError($"[LocalImageLoader] 图片不存在: {filePath}");
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return null;
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}
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if (!IsImageFile(filePath))
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{
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Debug.LogError($"[LocalImageLoader] 非图片格式: {filePath}");
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return null;
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}
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try
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{
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byte[] data = File.ReadAllBytes(filePath);
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Texture2D tex = new Texture2D(2, 2, TextureFormat.RGBA32, false);
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if (!tex.LoadImage(data))
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{
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Object.Destroy(tex);
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Debug.LogError($"[LocalImageLoader] 图片解析失败: {filePath}");
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return null;
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}
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tex.name = Path.GetFileNameWithoutExtension(filePath);
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return tex;
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}
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catch (System.Exception e)
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{
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Debug.LogError($"[LocalImageLoader] 加载图片异常: {e.Message}");
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return null;
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}
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}
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private static bool IsImageFile(string path)
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{
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string ext = Path.GetExtension(path).ToLower();
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return ext == ".png" || ext == ".jpg" || ext == ".jpeg";
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}
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}
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