diff --git a/Program.cs b/Program.cs
index 80699ef..705468d 100644
--- a/Program.cs
+++ b/Program.cs
@@ -1,29 +1,131 @@
-Console.Write("Block Name(diamon_ore): ");
-string blockname = Console.ReadLine();
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.PixelFormats;
+using SixLabors.ImageSharp.Processing;
 
-if (string.IsNullOrEmpty(blockname))
+
+namespace txtgen;
+
+public class Program
 {
-    blockname = "diamond_ore";
-}
 
-Console.Write("top texture url: ");
-string top_texture = Console.ReadLine().Trim('\"');
-
-Console.Write("bottom texture url: ");
-string bottom_texture = Console.ReadLine().Trim('\"');
-
-Console.Write("both texture url: ");
-string both_texture = Console.ReadLine().Trim('\"');
-
-Console.Write("none texture url: ");
-string none_texture = Console.ReadLine().Trim('\"');    
+    // string blockname;
+    static string ctm_dir;
+    static void Main()
+    {
 
 
-string working_dir = Directory.GetCurrentDirectory();
-// string blockname = "blockname";
-Directory.CreateDirectory(working_dir + "/output/assets");
+        Console.Write("Block Name(diamon_ore): ");
+        string blockname = Console.ReadLine();
 
-string mcmeta = @"{
+        if (string.IsNullOrEmpty(blockname))
+        {
+            blockname = "diamond_ore";
+        }
+
+        if (Directory.Exists("output/assets/minecraft/optifine/ctm/" + blockname))
+        {
+            Console.WriteLine("that block already exists, delete it and try again");
+            return;
+        }
+        Create_pack(blockname);
+
+        // Console.Write("top texture url: ");
+        // string top_texture = Console.ReadLine().Trim('\"');
+
+        // Console.Write("bottom texture url: ");
+        // string bottom_texture = Console.ReadLine().Trim('\"');
+
+        Console.Write("full texture path: ");
+        string full_texture = Console.ReadLine().Trim('\"');
+
+        Console.Write("none texture path: ");
+        string none_texture = Console.ReadLine().Trim('\"');
+
+
+        Image full_img = Image.Load(full_texture);
+        Image none_img = Image.Load(none_texture);
+
+        Image bottom_img = Image.Load(full_texture);
+        Image top_img = Image.Load(none_texture);
+        int size = full_img.Height;
+
+
+        bottom_img.Mutate(x => x.DrawImage(none_img, new Rectangle(0, 0, size, size / 2), 1f));
+        top_img.Mutate(x => x.DrawImage(full_img, new Rectangle(0, 0, size, size / 2), 1f));
+
+
+        // g.Save();
+        if (Directory.Exists("tmp"))
+        {
+            Directory.Delete("tmp", true);
+        }
+        Directory.CreateDirectory("tmp");
+
+        bottom_img.Save("tmp/bottom.png");
+        top_img.Save("tmp/top.png");
+
+        string top_texture = "tmp/top.png";
+        string bottom_texture = "tmp/bottom.png";
+
+        Add_block(blockname, top_texture, bottom_texture, full_texture, none_texture);
+
+        Directory.Delete("tmp", true);
+        // string blockname = "blockname";
+
+
+        // Directory.CreateDirectory(working_dir + "/output/assets/minecraft");
+        // Directory.CreateDirectory(working_dir + "/output/assets/minecraft/optifine");
+        // Directory.CreateDirectory(working_dir + "/output/assets/minecraft/optifine/ctm");
+
+
+
+
+    }
+   static void Add_block(string blockname, string top_texture, string bottom_texture, string full_texture, string none_texture)
+    {
+        string ctmproperties = @"matchTiles=" + blockname + @"
+method=ctm
+tiles=0-47";
+
+        File.WriteAllText(ctm_dir + "/" + blockname + ".properties", ctmproperties);
+
+        int[] top = { 4, 5, 7, 12, 13, 14, 15, 29, 31 };
+        int[] bottom = { 16, 17, 18, 36, 37, 38, 39, 40, 42 };
+        int[] both = { 0, 1, 2, 3 };
+        int[] none = { 6, 8, 9, 10, 11, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 41, 43, 44, 45, 46 };
+
+
+
+
+        foreach (int i in top)
+        {
+            File.Copy(top_texture, ctm_dir + "/" + i + ".png");
+        }
+        foreach (int i in bottom)
+        {
+            File.Copy(bottom_texture, ctm_dir + "/" + i + ".png");
+        }
+        foreach (int i in both)
+        {
+            File.Copy(full_texture, ctm_dir + "/" + i + ".png");
+        }
+        foreach (int i in none)
+        {
+            File.Copy(none_texture, ctm_dir + "/" + i + ".png");
+        }
+    }
+    static void Create_pack(string blockname)
+    {
+        string working_dir = Directory.GetCurrentDirectory();
+
+        string pack_Name = "output";
+
+        ctm_dir =  Path.Combine(working_dir,pack_Name, "assets/minecraft/optifine/ctm/" + blockname);
+
+        Directory.CreateDirectory(ctm_dir);
+        // Directory.CreateDirectory(working_dir + "/1output/assets");
+
+        string mcmeta = @"{
     ""pack"": {
         ""description"": """",
         ""pack_format"": 15,
@@ -33,42 +135,7 @@ string mcmeta = @"{
     }
 }";
 
-File.WriteAllText(working_dir + "/output/pack.mcmeta", mcmeta);
+        File.WriteAllText(Path.Combine(working_dir, pack_Name, "pack.mcmeta"), mcmeta);
+    }
 
-Directory.CreateDirectory(working_dir + "/output/assets/minecraft");
-Directory.CreateDirectory(working_dir + "/output/assets/minecraft/optifine");
-Directory.CreateDirectory(working_dir + "/output/assets/minecraft/optifine/ctm");
-Directory.CreateDirectory(working_dir + "/output/assets/minecraft/optifine/ctm/" + blockname);
-
-
-string ctm_dir = working_dir + "/output/assets/minecraft/optifine/ctm/" + blockname;
-string ctmproperties = @"matchTiles=" + blockname + @"
-method=ctm
-tiles=0-47";
-
-File.WriteAllText(ctm_dir + "/" + blockname + ".properties", ctmproperties);
-
-int[] top = {4,5,7,12,13,14,15,29,31};
-int[] bottom = {16,17,18,36,37,38,39,40,42};
-int[] both = {0,1,2,3};
-int[] none = {6,8,9,10,11,19,20,21,22,23,24,25,26,27,28,30,32,33,34,35,41,43,44,45,46};
-
-
-
-
-foreach (int i in top)
-{
-    File.Copy(top_texture, ctm_dir + "/" + i + ".png");
-}
-foreach (int i in bottom)
-{
-    File.Copy(bottom_texture, ctm_dir + "/" + i + ".png");
-}
-foreach (int i in both)
-{
-    File.Copy(both_texture, ctm_dir + "/" + i + ".png");
-}
-foreach (int i in none)
-{
-    File.Copy(none_texture, ctm_dir + "/" + i + ".png");
-}
+}
\ No newline at end of file
diff --git a/example/bottom.png b/example/bottom.png
deleted file mode 100644
index a7cc171..0000000
Binary files a/example/bottom.png and /dev/null differ
diff --git a/example/top.png b/example/top.png
deleted file mode 100644
index 60a7f9f..0000000
Binary files a/example/top.png and /dev/null differ
diff --git a/txtgen.csproj b/txtgen.csproj
index bb73c99..24d4bcd 100644
--- a/txtgen.csproj
+++ b/txtgen.csproj
@@ -8,4 +8,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
+  </ItemGroup>
+
 </Project>