using UnityEngine;
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using System.Collections;
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using UnityEditor;
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using System.IO;
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using System.Collections.Generic;
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/// <summary>
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/// 切割
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/// </summary>
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public static class ImageSlicer
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{
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[MenuItem("Assets/ImageSlicer/Process to Sprites")]
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static void ProcessToSprite()
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{
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Texture2D image = Selection.activeObject as Texture2D;//获取旋转的对象
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string rootPath = Path.GetDirectoryName(AssetDatabase.GetAssetPath(image));//获取路径名称
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string path = rootPath + "/" + image.name + ".PNG";//图片路径名称
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TextureImporter texImp = AssetImporter.GetAtPath(path) as TextureImporter;//获取图片入口
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AssetDatabase.CreateFolder(rootPath, image.name);//创建文件夹
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foreach (SpriteMetaData metaData in texImp.spritesheet)//遍历小图集
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{
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Texture2D myimage = new Texture2D((int)metaData.rect.width, (int)metaData.rect.height);
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//abc_0:(x:2.00, y:400.00, width:103.00, height:112.00)
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for (int y = (int)metaData.rect.y; y < metaData.rect.y + metaData.rect.height; y++)//Y轴像素
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{
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for (int x = (int)metaData.rect.x; x < metaData.rect.x + metaData.rect.width; x++)
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myimage.SetPixel(x - (int)metaData.rect.x, y - (int)metaData.rect.y, image.GetPixel(x, y));
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}
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//转换纹理到EncodeToPNG兼容格式
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if (myimage.format != TextureFormat.ARGB32 && myimage.format != TextureFormat.RGB24)
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{
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Texture2D newTexture = new Texture2D(myimage.width, myimage.height);
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newTexture.SetPixels(myimage.GetPixels(0), 0);
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myimage = newTexture;
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}
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var pngData = myimage.EncodeToPNG();
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//AssetDatabase.CreateAsset(myimage, rootPath + "/" + image.name + "/" + metaData.name + ".PNG");
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File.WriteAllBytes(rootPath + "/" + image.name + "/" + metaData.name + ".PNG", pngData);
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// 刷新资源窗口界面
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AssetDatabase.Refresh();
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}
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}
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}
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