Add Skin.cs and utilities to Serialize and Deserialize them

PCK-Studio/Extensions/PckFileDataExtensions.cs

@@ -7,8 +7,10 @@ using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using OMI.Formats.Languages;
 using OMI.Formats.Pck;
 using OMI.Workers;
+using PckStudio.Internal;
 
 namespace PckStudio.Extensions
 {
@@ -26,18 +28,107 @@ namespace PckStudio.Extensions
             {
                 throw new Exception("File is not suitable to contain image data.");
             }
-            using (var stream = new MemoryStream(file.Data))
+            using var stream = new MemoryStream(file.Data);
+
+            try
             {
-                try
-                {
-                    return Image.FromStream(stream);
-                }
-                catch(Exception ex)
-                {
-                    Trace.WriteLine($"Failed to read image from pck file data({file.Filename}).", category: nameof(PckFileDataExtensions) + "." + nameof(GetTexture));
-                    Debug.WriteLine(ex.Message);
-                    return EmptyImage;
-                }
+                return Image.FromStream(stream);
+            }
+            catch (Exception ex)
+            {
+                Trace.TraceError($"Failed to read image from pck file data({file.Filename}).");
+                Debug.WriteLine(ex.Message);
+                return EmptyImage;
+            }
+        }
+
+        /// <summary>
+        /// Tries to get the skin id of the skin <paramref name="file"/>
+        /// </summary>
+        /// <param name="file"></param>
+        /// <returns>Non-zero base number on success, otherwise 0</returns>
+        /// <exception cref="InvalidOperationException"></exception>
+        internal static int GetSkinId(this PckFileData file)
+        {
+            if (file.Filetype != PckFileType.SkinFile)
+                throw new InvalidOperationException("File is not a skin file");
+            
+            string filename = Path.GetFileNameWithoutExtension(file.Filename);
+            if (!filename.StartsWith("dlcskin"))
+            {
+                Trace.TraceWarning($"[{nameof(GetSkin)}] File does not start with 'dlcskin'");
+                return 0;
+            }
+
+            int skinId = 0;
+            if (!int.TryParse(filename.Substring("dlcskin".Length), out skinId))
+            {
+                Trace.TraceWarning($"[{nameof(GetSkin)}] Failed to parse Skin Id");
+            }
+            return skinId;
+        }
+
+        internal static Skin GetSkin(this PckFileData file)
+        {
+            if (file.Filetype != PckFileType.SkinFile)
+                throw new InvalidOperationException("File is not a skin file");
+
+            if (file.Properties.Contains("CAPEPATH"))
+                Debug.WriteLine($"[{nameof(GetSkin)}] TODO: add cape texture/path.");
+
+            int skinId = file.GetSkinId();
+
+            string name = file.Properties.GetPropertyValue("DISPLAYNAME");
+            Image texture = file.GetTexture();
+            SkinANIM anim = file.Properties.GetPropertyValue("ANIM", SkinANIM.FromString);
+            IEnumerable<SkinBOX> boxes = file.Properties.GetProperties("BOX").Select(kv => SkinBOX.FromString(kv.Value));
+            IEnumerable<SkinPartOffset> offsets = file.Properties.GetProperties("OFFSET").Select(kv => SkinPartOffset.FromString(kv.Value));
+            return new Skin(name, skinId, texture, anim, boxes, offsets);
+        }
+
+        internal static void SetSkin(this PckFileData file, Skin skin, LOCFile localizationFile)
+        {
+            if (file.Filetype != PckFileType.SkinFile)
+                throw new InvalidOperationException("File is not a skin file");
+
+            file.SetData(skin.Texture, ImageFormat.Png);
+
+            string skinId = skin.Id.ToString("d08");
+
+            // TODO: keep filepath 
+            file.Filename = $"dlcskin{skinId}.png";
+
+            string skinLocKey = $"IDS_dlcskin{skinId}_DISPLAYNAME";
+            file.Properties.SetProperty("DISPLAYNAME", skin.Name);
+            file.Properties.SetProperty("DISPLAYNAMEID", skinLocKey);
+            localizationFile.AddLocKey(skinLocKey, skin.Name);
+
+            if (!string.IsNullOrEmpty(skin.Theme))
+            {
+                file.Properties.SetProperty("THEMENAME", skin.Theme);
+                file.Properties.SetProperty("THEMENAMEID", $"IDS_dlcskin{skinId}_THEMENAME");
+                localizationFile.AddLocKey($"IDS_dlcskin{skinId}_THEMENAME", skin.Theme);
+            }
+
+            if (skin.HasCape)
+            {
+                file.Properties.SetProperty("CAPEPATH", $"dlccape{skinId}.png");
+            }
+
+            file.Properties.SetProperty("ANIM", skin.ANIM.ToString());
+            file.Properties.SetProperty("GAME_FLAGS", "0x18");
+            file.Properties.SetProperty("FREE", "1");
+
+            file.Properties.RemoveAll(kv => kv.Key == "BOX");
+            file.Properties.RemoveAll(kv => kv.Key == "OFFSET");
+
+            foreach (SkinBOX box in skin.AdditionalBoxes)
+            {
+                file.Properties.Add(box.ToProperty());
+            }
+            foreach (SkinPartOffset offset in skin.PartOffsets)
+            {
+                file.Properties.Add(offset.ToProperty());
             }
         }