[FEATURE] Procedural Texture2D/Sprite Generation

MCPForUnity/Editor/Helpers/TextureOps.cs

@@ -0,0 +1,162 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Newtonsoft.Json.Linq;
+using UnityEngine;
+
+namespace MCPForUnity.Editor.Helpers
+{
+    public static class TextureOps
+    {
+        public static byte[] EncodeTexture(Texture2D texture, string assetPath)
+        {
+            if (texture == null)
+                return null;
+
+            string extension = Path.GetExtension(assetPath);
+            if (string.IsNullOrEmpty(extension))
+            {
+                McpLog.Warn($"[TextureOps] No file extension for '{assetPath}', defaulting to PNG.");
+                return texture.EncodeToPNG();
+            }
+
+            switch (extension.ToLowerInvariant())
+            {
+                case ".png":
+                    return texture.EncodeToPNG();
+                case ".jpg":
+                case ".jpeg":
+                    return texture.EncodeToJPG();
+                default:
+                    McpLog.Warn($"[TextureOps] Unsupported extension '{extension}' for '{assetPath}', defaulting to PNG.");
+                    return texture.EncodeToPNG();
+            }
+        }
+
+        public static void FillTexture(Texture2D texture, Color32 color)
+        {
+            if (texture == null)
+                return;
+
+            Color32[] pixels = new Color32[texture.width * texture.height];
+            for (int i = 0; i < pixels.Length; i++)
+            {
+                pixels[i] = color;
+            }
+            texture.SetPixels32(pixels);
+        }
+
+        public static Color32 ParseColor32(JArray colorArray)
+        {
+            if (colorArray == null || colorArray.Count < 3)
+                return new Color32(255, 255, 255, 255);
+
+            byte r = (byte)Mathf.Clamp(colorArray[0].ToObject<int>(), 0, 255);
+            byte g = (byte)Mathf.Clamp(colorArray[1].ToObject<int>(), 0, 255);
+            byte b = (byte)Mathf.Clamp(colorArray[2].ToObject<int>(), 0, 255);
+            byte a = colorArray.Count > 3 ? (byte)Mathf.Clamp(colorArray[3].ToObject<int>(), 0, 255) : (byte)255;
+
+            return new Color32(r, g, b, a);
+        }
+
+        public static List<Color32> ParsePalette(JArray paletteArray)
+        {
+            if (paletteArray == null)
+                return null;
+
+            List<Color32> palette = new List<Color32>();
+            foreach (var item in paletteArray)
+            {
+                if (item is JArray colorArray)
+                {
+                    palette.Add(ParseColor32(colorArray));
+                }
+            }
+            return palette.Count > 0 ? palette : null;
+        }
+
+        public static void ApplyPixelData(Texture2D texture, JToken pixelsToken, int width, int height)
+        {
+            ApplyPixelDataToRegion(texture, pixelsToken, 0, 0, width, height);
+        }
+
+        public static void ApplyPixelDataToRegion(Texture2D texture, JToken pixelsToken, int offsetX, int offsetY, int regionWidth, int regionHeight)
+        {
+            if (texture == null || pixelsToken == null)
+                return;
+
+            int textureWidth = texture.width;
+            int textureHeight = texture.height;
+
+            if (pixelsToken is JArray pixelArray)
+            {
+                int index = 0;
+                for (int y = 0; y < regionHeight && index < pixelArray.Count; y++)
+                {
+                    for (int x = 0; x < regionWidth && index < pixelArray.Count; x++)
+                    {
+                        var pixelColor = pixelArray[index] as JArray;
+                        if (pixelColor != null)
+                        {
+                            int px = offsetX + x;
+                            int py = offsetY + y;
+                            if (px >= 0 && px < textureWidth && py >= 0 && py < textureHeight)
+                            {
+                                texture.SetPixel(px, py, ParseColor32(pixelColor));
+                            }
+                        }
+                        index++;
+                    }
+                }
+
+                int expectedCount = regionWidth * regionHeight;
+                if (pixelArray.Count != expectedCount)
+                {
+                    McpLog.Warn($"[TextureOps] Pixel array size mismatch: expected {expectedCount} entries, got {pixelArray.Count}");
+                }
+            }
+            else if (pixelsToken.Type == JTokenType.String)
+            {
+                string pixelString = pixelsToken.ToString();
+                string base64 = pixelString.StartsWith("base64:") ? pixelString.Substring(7) : pixelString;
+                if (!pixelString.StartsWith("base64:"))
+                {
+                    McpLog.Warn("[TextureOps] Base64 pixel data missing 'base64:' prefix; attempting to decode.");
+                }
+
+                byte[] rawData = Convert.FromBase64String(base64);
+
+                // Assume RGBA32 format: 4 bytes per pixel
+                int expectedBytes = regionWidth * regionHeight * 4;
+                if (rawData.Length == expectedBytes)
+                {
+                    int pixelIndex = 0;
+                    for (int y = 0; y < regionHeight; y++)
+                    {
+                        for (int x = 0; x < regionWidth; x++)
+                        {
+                            int px = offsetX + x;
+                            int py = offsetY + y;
+                            if (px >= 0 && px < textureWidth && py >= 0 && py < textureHeight)
+                            {
+                                int byteIndex = pixelIndex * 4;
+                                Color32 color = new Color32(
+                                    rawData[byteIndex],
+                                    rawData[byteIndex + 1],
+                                    rawData[byteIndex + 2],
+                                    rawData[byteIndex + 3]
+                                );
+                                texture.SetPixel(px, py, color);
+                            }
+                            pixelIndex++;
+                        }
+                    }
+                }
+                else
+                {
+                    McpLog.Warn($"[TextureOps] Base64 data size mismatch: expected {expectedBytes} bytes, got {rawData.Length}");
+                }
+            }
+        }
+    }
+}

MCPForUnity/Editor/Tools/ManageAsset.cs

@@ -45,7 +45,7 @@ public static class ManageAsset
 
         public static object HandleCommand(JObject @params)
         {
-            string action = @params["action"]?.ToString().ToLower();
+            string action = @params["action"]?.ToString()?.ToLowerInvariant();
             if (string.IsNullOrEmpty(action))
             {
                 return new ErrorResponse("Action parameter is required.");

MCPForUnity/Editor/Tools/ManageEditor.cs

@@ -24,7 +24,7 @@ public static class ManageEditor
         /// </summary>
         public static object HandleCommand(JObject @params)
         {
-            string action = @params["action"]?.ToString().ToLower();
+            string action = @params["action"]?.ToString()?.ToLowerInvariant();
             // Parameters for specific actions
             string tagName = @params["tagName"]?.ToString();
             string layerName = @params["layerName"]?.ToString();

MCPForUnity/Editor/Tools/ManageMaterial.cs

@@ -13,7 +13,7 @@ public static class ManageMaterial
     {
         public static object HandleCommand(JObject @params)
         {
-            string action = @params["action"]?.ToString();
+            string action = @params["action"]?.ToString()?.ToLowerInvariant();
             if (string.IsNullOrEmpty(action))
             {
                 return new ErrorResponse("Action is required");

MCPForUnity/Editor/Tools/ManageShader.cs

@@ -21,7 +21,7 @@ public static class ManageShader
         public static object HandleCommand(JObject @params)
         {
             // Extract parameters
-            string action = @params["action"]?.ToString().ToLower();
+            string action = @params["action"]?.ToString()?.ToLowerInvariant();
             string name = @params["name"]?.ToString();
             string path = @params["path"]?.ToString(); // Relative to Assets/
             string contents = null;