UIAtlasMaker.cs

Unity3d通用工具類之NGUI圖集分解 - 走看看

有些圖片邊界一些alpha通道沒有分解出來 在上面基礎上 修改了下.

static void ExportTexturePNGFromAtlas(string folderPath, UIAtlas atlas){List<UISpriteData> exitSpritesList = atlas.spriteList;Texture2D atlasTexture = NGUIEditorTools.ImportTexture(atlas.texture, true, false, !atlas.premultipliedAlpha);int oldwith = atlasTexture.width;int oldHeight = atlasTexture.height;Color32[] oldPixels = null;foreach (var es in exitSpritesList){int xmin = Mathf.Clamp(es.x, 0, oldwith);int ymin = Mathf.Clamp(es.y, 0, oldHeight);int newWidth = Mathf.Clamp(es.width+es.paddingLeft+es.paddingRight, 0, oldwith);int newHeight = Mathf.Clamp(es.height+es.paddingBottom+es.paddingTop, 0, oldHeight);if (newWidth == 0 || newHeight == 0) continue;if (oldPixels == null) oldPixels = atlasTexture.GetPixels32();Color32[] newPixels = new Color32[newWidth * newHeight];for (int y = 0; y < newHeight; ++y){for (int x = 0; x < newWidth; ++x){if (y>=es.paddingTop && y<newHeight-es.paddingBottom && x>=es.paddingLeft && x<newWidth-es.paddingRight){int newIndex = (newHeight - 1 - y) * newWidth + x;int oldIndex = (oldHeight - 1 - (ymin + y-es.paddingTop)) * oldwith + (xmin + x-es.paddingLeft);newPixels[newIndex] = oldPixels[oldIndex];}else{int newIndex = (newHeight - 1 - y) * newWidth + x;newPixels[newIndex] = new Color32(0,0,0,0);}}}Texture2D t = new Texture2D(newWidth, newHeight);t.SetPixels32(newPixels);t.Apply();byte[] bytes = t.EncodeToPNG();Texture2D.DestroyImmediate(t);t = null;if (!Directory.Exists(folderPath)){Directory.CreateDirectory(folderPath);}using (FileStream fs = new FileStream(folderPath + "/" + es.name + ".png", FileMode.CreateNew)){BinaryWriter writer = new BinaryWriter(fs);writer.Write(bytes);}}}

UIAtlasMaker.cs 完整文件

//------------------------------------------------- // NGUI: Next-Gen UI kit // Copyright ? 2011-2018 Tasharen Entertainment Inc //-------------------------------------------------using UnityEngine; using UnityEditor; using System.Collections.Generic; using System.IO;/// <summary> /// Atlas maker lets you create atlases from a bunch of small textures. It's an alternative to using the external Texture Packer. /// </summary>public class UIAtlasMaker : EditorWindow {static public UIAtlasMaker instance;public class SpriteEntry : UISpriteData{// Sprite texture -- original texture or a temporary texturepublic Texture2D tex;// Temporary game object -- used to prevent Unity from unloading the texturepublic GameObject tempGO;// Temporary material -- same usage as the temporary game objectpublic Material tempMat;// Whether the texture is temporary and should be deletedpublic bool temporaryTexture = false;/// <summary>/// HACK: Prevent Unity from unloading temporary textures./// Discovered by "alexkring": http://www.tasharen.com/forum/index.php?topic=3079.45/// </summary>public void SetTexture (Color32[] newPixels, int newWidth, int newHeight){Release();temporaryTexture = true;tex = new Texture2D(newWidth, newHeight);tex.name = name;tex.SetPixels32(newPixels);tex.Apply();tempMat = new Material(NGUISettings.atlas.spriteMaterial);tempMat.hideFlags = HideFlags.HideAndDontSave;tempMat.SetTexture("_MainTex", tex);tempGO = EditorUtility.CreateGameObjectWithHideFlags(name, HideFlags.HideAndDontSave, typeof(MeshRenderer));tempGO.GetComponent<MeshRenderer>().sharedMaterial = tempMat;}/// <summary>/// Release temporary resources./// </summary>public void Release (){if (temporaryTexture){Object.DestroyImmediate(tempGO);Object.DestroyImmediate(tempMat);Object.DestroyImmediate(tex);tempGO = null;tempMat = null;tex = null;temporaryTexture = false;}}}Vector2 mScroll = Vector2.zero;List<string> mDelNames = new List<string>();UIAtlas mLastAtlas;void OnEnable () { instance = this; }void OnDisable () { instance = null; }/// <summary>/// Atlas selection callback./// </summary>void OnSelectAtlas (Object obj){if (NGUISettings.atlas != obj){NGUISettings.atlas = obj as UIAtlas;Repaint();}}/// <summary>/// Refresh the window on selection./// </summary>void OnSelectionChange () { mDelNames.Clear(); Repaint(); }/// <summary>/// Helper function that retrieves the list of currently selected textures./// </summary>List<Texture> GetSelectedTextures (){var textures = new List<Texture>();var names = new List<string>();if (Selection.objects != null && Selection.objects.Length > 0){var objects = Selection.GetFiltered(typeof(Texture), SelectionMode.DeepAssets);foreach (Object o in objects){var tex = o as Texture;if (tex == null || tex.name == "Font Texture") continue;if (names.Contains(tex.name)) continue;if (NGUISettings.atlas == null || NGUISettings.atlas.texture != tex){names.Add(tex.name);textures.Add(tex);}}}return textures;}/// <summary>/// Load the specified list of textures as Texture2Ds, fixing their import properties as necessary./// </summary>static List<Texture2D> LoadTextures (List<Texture> textures){List<Texture2D> list = new List<Texture2D>();foreach (Texture tex in textures){Texture2D t2 = NGUIEditorTools.ImportTexture(tex, true, false, true);if (t2 != null) list.Add(t2);}return list;}/// <summary>/// Used to sort the sprites by pixels used/// </summary>static int Compare (SpriteEntry a, SpriteEntry b){// A is null b is not b is greater so put it at the front of the listif (a == null && b != null) return 1;// A is not null b is null a is greater so put it at the front of the listif (a != null && b == null) return -1;// Get the total pixels used for each spriteint aPixels = a.width * a.height;int bPixels = b.width * b.height;if (aPixels > bPixels) return -1;else if (aPixels < bPixels) return 1;return 0;}/// <summary>/// Pack all of the specified sprites into a single texture, updating the outer and inner rects of the sprites as needed./// </summary>static bool PackTextures (Texture2D tex, List<SpriteEntry> sprites){Texture2D[] textures = new Texture2D[sprites.Count];Rect[] rects;#if UNITY_3_5 || UNITY_4_0int maxSize = 4096; #elseint maxSize = SystemInfo.maxTextureSize; #endif#if UNITY_ANDROID || UNITY_IPHONEmaxSize = Mathf.Min(maxSize, NGUISettings.allow4096 ? 4096 : 2048); #endifif (NGUISettings.unityPacking){for (int i = 0; i < sprites.Count; ++i) textures[i] = sprites[i].tex;rects = tex.PackTextures(textures, NGUISettings.atlasPadding, maxSize);}else{sprites.Sort(Compare);for (int i = 0; i < sprites.Count; ++i) textures[i] = sprites[i].tex;rects = UITexturePacker.PackTextures(tex, textures, 4, 4, NGUISettings.atlasPadding, maxSize);}for (int i = 0; i < sprites.Count; ++i){Rect rect = NGUIMath.ConvertToPixels(rects[i], tex.width, tex.height, true);// Apparently Unity can take the liberty of destroying temporary textures without any warningif (textures[i] == null) return false;// Make sure that we don't shrink the texturesif (Mathf.RoundToInt(rect.width) != textures[i].width) return false;SpriteEntry se = sprites[i];se.x = Mathf.RoundToInt(rect.x);se.y = Mathf.RoundToInt(rect.y);se.width = Mathf.RoundToInt(rect.width);se.height = Mathf.RoundToInt(rect.height);}return true;}/// <summary>/// Helper function that creates a single sprite list from both the atlas's sprites as well as selected textures./// Dictionary value meaning:/// 0 = No change/// 1 = Update/// 2 = Add/// </summary>Dictionary<string, int> GetSpriteList (List<Texture> textures){Dictionary<string, int> spriteList = new Dictionary<string, int>();// If we have textures to work with, include them as wellif (textures.Count > 0){List<string> texNames = new List<string>();foreach (Texture tex in textures) texNames.Add(tex.name);texNames.Sort();foreach (string tex in texNames) spriteList.Add(tex, 2);}if (NGUISettings.atlas != null){BetterList<string> spriteNames = NGUISettings.atlas.GetListOfSprites();foreach (string sp in spriteNames){if (spriteList.ContainsKey(sp)) spriteList[sp] = 1;else spriteList.Add(sp, 0);}}return spriteList;}/// <summary>/// Add a new sprite to the atlas, given the texture it's coming from and the packed rect within the atlas./// </summary>static public UISpriteData AddSprite (List<UISpriteData> sprites, SpriteEntry se){// See if this sprite already existsforeach (UISpriteData sp in sprites){if (sp.name == se.name){sp.CopyFrom(se);return sp;}}UISpriteData sprite = new UISpriteData();sprite.CopyFrom(se);sprites.Add(sprite);return sprite;}/// <summary>/// Create a list of sprites using the specified list of textures./// </summary>static public List<SpriteEntry> CreateSprites (List<Texture> textures){List<SpriteEntry> list = new List<SpriteEntry>();foreach (Texture tex in textures){Texture2D oldTex = NGUIEditorTools.ImportTexture(tex, true, false, true);if (oldTex == null) oldTex = tex as Texture2D;if (oldTex == null) continue;// If we aren't doing trimming, just use the texture as-isif (!NGUISettings.atlasTrimming && !NGUISettings.atlasPMA){SpriteEntry sprite = new SpriteEntry();sprite.SetRect(0, 0, oldTex.width, oldTex.height);sprite.tex = oldTex;sprite.name = oldTex.name;sprite.temporaryTexture = false;list.Add(sprite);continue;}// If we want to trim transparent pixels, there is more work to be doneColor32[] pixels = oldTex.GetPixels32();int xmin = oldTex.width;int xmax = 0;int ymin = oldTex.height;int ymax = 0;int oldWidth = oldTex.width;int oldHeight = oldTex.height;// Find solid pixelsif (NGUISettings.atlasTrimming){for (int y = 0, yw = oldHeight; y < yw; ++y){for (int x = 0, xw = oldWidth; x < xw; ++x){Color32 c = pixels[y * xw + x];if (c.a != 0){if (y < ymin) ymin = y;if (y > ymax) ymax = y;if (x < xmin) xmin = x;if (x > xmax) xmax = x;}}}}else{xmin = 0;xmax = oldWidth - 1;ymin = 0;ymax = oldHeight - 1;}int newWidth = (xmax - xmin) + 1;int newHeight = (ymax - ymin) + 1;if (newWidth > 0 && newHeight > 0){SpriteEntry sprite = new SpriteEntry();sprite.x = 0;sprite.y = 0;sprite.width = oldTex.width;sprite.height = oldTex.height;// If the dimensions match, then nothing was actually trimmedif (!NGUISettings.atlasPMA && (newWidth == oldWidth && newHeight == oldHeight)){sprite.tex = oldTex;sprite.name = oldTex.name;sprite.temporaryTexture = false;}else{// Copy the non-trimmed texture data into a temporary bufferColor32[] newPixels = new Color32[newWidth * newHeight];for (int y = 0; y < newHeight; ++y){for (int x = 0; x < newWidth; ++x){int newIndex = y * newWidth + x;int oldIndex = (ymin + y) * oldWidth + (xmin + x);if (NGUISettings.atlasPMA) newPixels[newIndex] = NGUITools.ApplyPMA(pixels[oldIndex]);else newPixels[newIndex] = pixels[oldIndex];}}// Create a new texturesprite.name = oldTex.name;sprite.SetTexture(newPixels, newWidth, newHeight);// Remember the padding offsetsprite.SetPadding(xmin, ymin, oldWidth - newWidth - xmin, oldHeight - newHeight - ymin);}list.Add(sprite);}}return list;}/// <summary>/// Release all temporary textures created for the sprites./// </summary>static public void ReleaseSprites (List<SpriteEntry> sprites){foreach (SpriteEntry se in sprites) se.Release();Resources.UnloadUnusedAssets();}/// <summary>/// Replace the sprites within the atlas./// </summary>static public void ReplaceSprites (UIAtlas atlas, List<SpriteEntry> sprites){// Get the list of sprites we'll be updatingList<UISpriteData> spriteList = atlas.spriteList;List<UISpriteData> kept = new List<UISpriteData>();// Run through all the textures we added and add them as sprites to the atlasfor (int i = 0; i < sprites.Count; ++i){SpriteEntry se = sprites[i];UISpriteData sprite = AddSprite(spriteList, se);kept.Add(sprite);}// Remove unused spritesfor (int i = spriteList.Count; i > 0; ){UISpriteData sp = spriteList[--i];if (!kept.Contains(sp)) spriteList.RemoveAt(i);}// Sort the sprites so that they are alphabetical within the atlasatlas.SortAlphabetically();atlas.MarkAsChanged();}/// <summary>/// Duplicate the specified sprite./// </summary>static public SpriteEntry DuplicateSprite (UIAtlas atlas, string spriteName){if (atlas == null || atlas.texture == null) return null;UISpriteData sd = atlas.GetSprite(spriteName);if (sd == null) return null;Texture2D tex = NGUIEditorTools.ImportTexture(atlas.texture, true, true, false);SpriteEntry se = ExtractSprite(sd, tex);if (se != null){se.name = se.name + " (Copy)";List<UIAtlasMaker.SpriteEntry> sprites = new List<UIAtlasMaker.SpriteEntry>();UIAtlasMaker.ExtractSprites(atlas, sprites);sprites.Add(se);UIAtlasMaker.UpdateAtlas(atlas, sprites);se.Release();}else NGUIEditorTools.ImportTexture(atlas.texture, false, false, !atlas.premultipliedAlpha);return se;}/// <summary>/// Extract the specified sprite from the atlas./// </summary>static public SpriteEntry ExtractSprite (UIAtlas atlas, string spriteName){if (atlas.texture == null) return null;UISpriteData sd = atlas.GetSprite(spriteName);if (sd == null) return null;Texture2D tex = NGUIEditorTools.ImportTexture(atlas.texture, true, true, false);SpriteEntry se = ExtractSprite(sd, tex);NGUIEditorTools.ImportTexture(atlas.texture, false, false, !atlas.premultipliedAlpha);return se;}/// <summary>/// Extract the specified sprite from the atlas texture./// </summary>static SpriteEntry ExtractSprite (UISpriteData es, Texture2D tex){return (tex != null) ? ExtractSprite(es, tex.GetPixels32(), tex.width, tex.height) : null;}/// <summary>/// Extract the specified sprite from the atlas texture./// </summary>static SpriteEntry ExtractSprite (UISpriteData es, Color32[] oldPixels, int oldWidth, int oldHeight){int xmin = Mathf.Clamp(es.x, 0, oldWidth);int ymin = Mathf.Clamp(es.y, 0, oldHeight);int xmax = Mathf.Min(xmin + es.width, oldWidth - 1);int ymax = Mathf.Min(ymin + es.height, oldHeight - 1);int newWidth = Mathf.Clamp(es.width, 0, oldWidth);int newHeight = Mathf.Clamp(es.height, 0, oldHeight);if (newWidth == 0 || newHeight == 0) return null;Color32[] newPixels = new Color32[newWidth * newHeight];for (int y = 0; y < newHeight; ++y){int cy = ymin + y;if (cy > ymax) cy = ymax;for (int x = 0; x < newWidth; ++x){int cx = xmin + x;if (cx > xmax) cx = xmax;int newIndex = (newHeight - 1 - y) * newWidth + x;int oldIndex = (oldHeight - 1 - cy) * oldWidth + cx;newPixels[newIndex] = oldPixels[oldIndex];}}// Create a new spriteSpriteEntry sprite = new SpriteEntry();sprite.CopyFrom(es);sprite.SetRect(0, 0, newWidth, newHeight);sprite.SetTexture(newPixels, newWidth, newHeight);return sprite;}/// <summary>/// Extract sprites from the atlas, adding them to the list./// </summary>static public void ExtractSprites (UIAtlas atlas, List<SpriteEntry> finalSprites){ShowProgress(0f);// Make the atlas texture readableTexture2D tex = NGUIEditorTools.ImportTexture(atlas.texture, true, true, false);if (tex != null){Color32[] pixels = null;int width = tex.width;int height = tex.height;List<UISpriteData> sprites = atlas.spriteList;float count = sprites.Count;int index = 0;foreach (UISpriteData es in sprites){ShowProgress((index++) / count);bool found = false;foreach (SpriteEntry fs in finalSprites){if (es.name == fs.name){fs.CopyBorderFrom(es);found = true;break;}}if (!found){if (pixels == null) pixels = tex.GetPixels32();SpriteEntry sprite = ExtractSprite(es, pixels, width, height);if (sprite != null) finalSprites.Add(sprite);}}}// The atlas no longer needs to be readableNGUIEditorTools.ImportTexture(atlas.texture, false, false, !atlas.premultipliedAlpha);ShowProgress(1f);}/// <summary>/// Combine all sprites into a single texture and save it to disk./// </summary>static public bool UpdateTexture (UIAtlas atlas, List<SpriteEntry> sprites){// Get the texture for the atlasTexture2D tex = atlas.texture as Texture2D;string oldPath = (tex != null) ? AssetDatabase.GetAssetPath(tex.GetInstanceID()) : "";string newPath = NGUIEditorTools.GetSaveableTexturePath(atlas);// Clear the read-only flag in texture file attributesif (System.IO.File.Exists(newPath)){System.IO.FileAttributes newPathAttrs = System.IO.File.GetAttributes(newPath);newPathAttrs &= ~System.IO.FileAttributes.ReadOnly;System.IO.File.SetAttributes(newPath, newPathAttrs);}bool newTexture = (tex == null || oldPath != newPath);if (newTexture){// Create a new texture for the atlastex = new Texture2D(1, 1, TextureFormat.ARGB32, false);}else{// Make the atlas readable so we can save ittex = NGUIEditorTools.ImportTexture(oldPath, true, false, false);}// Pack the sprites into this textureif (PackTextures(tex, sprites)){byte[] bytes = tex.EncodeToPNG();System.IO.File.WriteAllBytes(newPath, bytes);bytes = null;// Load the texture we just saved as a Texture2DAssetDatabase.SaveAssets();AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);tex = NGUIEditorTools.ImportTexture(newPath, false, true, !atlas.premultipliedAlpha);// Update the atlas textureif (newTexture){if (tex == null) Debug.LogError("Failed to load the created atlas saved as " + newPath);else atlas.spriteMaterial.mainTexture = tex;ReleaseSprites(sprites);AssetDatabase.SaveAssets();AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);}return true;}else{if (!newTexture) NGUIEditorTools.ImportTexture(oldPath, false, true, !atlas.premultipliedAlpha);//Debug.LogError("Operation canceled: The selected sprites can't fit into the atlas.\n" +// "Keep large sprites outside the atlas (use UITexture), and/or use multiple atlases instead.");EditorUtility.DisplayDialog("Operation Canceled", "The selected sprites can't fit into the atlas.\n" +"Keep large sprites outside the atlas (use UITexture), and/or use multiple atlases instead", "OK");return false;}}/// <summary>/// Show a progress bar./// </summary>static public void ShowProgress (float val){EditorUtility.DisplayProgressBar("Updating", "Updating the atlas, please wait...", val);}/// <summary>/// Add the specified texture to the atlas, or update an existing one./// </summary>static public void AddOrUpdate (UIAtlas atlas, Texture2D tex){if (atlas != null && tex != null){List<Texture> textures = new List<Texture>();textures.Add(tex);List<SpriteEntry> sprites = CreateSprites(textures);ExtractSprites(atlas, sprites);UpdateAtlas(atlas, sprites);}}/// <summary>/// Add the specified texture to the atlas, or update an existing one./// </summary>static public void AddOrUpdate (UIAtlas atlas, SpriteEntry se){if (atlas != null && se != null){List<SpriteEntry> sprites = new List<SpriteEntry>();sprites.Add(se);ExtractSprites(atlas, sprites);UpdateAtlas(atlas, sprites);}}/// <summary>/// Update the sprites within the texture atlas, preserving the sprites that have not been selected./// </summary>void UpdateAtlas (List<Texture> textures, bool keepSprites){// Create a list of sprites using the collected texturesList<SpriteEntry> sprites = CreateSprites(textures);if (sprites.Count > 0){// Extract sprites from the atlas, filling in the missing piecesif (keepSprites) ExtractSprites(NGUISettings.atlas, sprites);// NOTE: It doesn't seem to be possible to undo writing to disk, and there also seems to be no way of// detecting an Undo event. Without either of these it's not possible to restore the texture saved to disk,// so the undo process doesn't work right. Because of this I'd rather disable it altogether until a solution is found.// The ability to undo this action is always useful//NGUIEditorTools.RegisterUndo("Update Atlas", UISettings.atlas, UISettings.atlas.texture, UISettings.atlas.material);// Update the atlasUpdateAtlas(NGUISettings.atlas, sprites);}else if (!keepSprites){UpdateAtlas(NGUISettings.atlas, sprites);}}/// <summary>/// Update the sprite atlas, keeping only the sprites that are on the specified list./// </summary>static public void UpdateAtlas (UIAtlas atlas, List<SpriteEntry> sprites){if (sprites.Count > 0){// Combine all sprites into a single texture and save itif (UpdateTexture(atlas, sprites)){// Replace the sprites within the atlasReplaceSprites(atlas, sprites);}// Release the temporary texturesReleaseSprites(sprites);EditorUtility.ClearProgressBar();return;}else{atlas.spriteList.Clear();string path = NGUIEditorTools.GetSaveableTexturePath(atlas);atlas.spriteMaterial.mainTexture = null;if (!string.IsNullOrEmpty(path)) AssetDatabase.DeleteAsset(path);}atlas.MarkAsChanged();Selection.activeGameObject = (NGUISettings.atlas != null) ? NGUISettings.atlas.gameObject : null;EditorUtility.ClearProgressBar();}static void ExportTexturePNGFromAtlas(string folderPath, UIAtlas atlas){List<UISpriteData> exitSpritesList = atlas.spriteList;Texture2D atlasTexture = NGUIEditorTools.ImportTexture(atlas.texture, true, false, !atlas.premultipliedAlpha);int oldwith = atlasTexture.width;int oldHeight = atlasTexture.height;Color32[] oldPixels = null;foreach (var es in exitSpritesList){int xmin = Mathf.Clamp(es.x, 0, oldwith);int ymin = Mathf.Clamp(es.y, 0, oldHeight);int newWidth = Mathf.Clamp(es.width+es.paddingLeft+es.paddingRight, 0, oldwith);int newHeight = Mathf.Clamp(es.height+es.paddingBottom+es.paddingTop, 0, oldHeight);if (newWidth == 0 || newHeight == 0) continue;if (oldPixels == null) oldPixels = atlasTexture.GetPixels32();Color32[] newPixels = new Color32[newWidth * newHeight];for (int y = 0; y < newHeight; ++y){for (int x = 0; x < newWidth; ++x){if (y>=es.paddingTop && y<newHeight-es.paddingBottom && x>=es.paddingLeft && x<newWidth-es.paddingRight){int newIndex = (newHeight - 1 - y) * newWidth + x;int oldIndex = (oldHeight - 1 - (ymin + y-es.paddingTop)) * oldwith + (xmin + x-es.paddingLeft);newPixels[newIndex] = oldPixels[oldIndex];}else{int newIndex = (newHeight - 1 - y) * newWidth + x;newPixels[newIndex] = new Color32(0,0,0,0);}}}Texture2D t = new Texture2D(newWidth, newHeight);t.SetPixels32(newPixels);t.Apply();byte[] bytes = t.EncodeToPNG();Texture2D.DestroyImmediate(t);t = null;if (!Directory.Exists(folderPath)){Directory.CreateDirectory(folderPath);}using (FileStream fs = new FileStream(folderPath + "/" + es.name + ".png", FileMode.CreateNew)){BinaryWriter writer = new BinaryWriter(fs);writer.Write(bytes);}}}/// <summary>/// Draw the UI for this tool./// </summary>void OnGUI (){if (mLastAtlas != NGUISettings.atlas)mLastAtlas = NGUISettings.atlas;bool update = false;bool replace = false;NGUIEditorTools.SetLabelWidth(84f);GUILayout.Space(3f);NGUIEditorTools.DrawHeader("Input", true);NGUIEditorTools.BeginContents(false);GUILayout.BeginHorizontal();{ComponentSelector.Draw<UIAtlas>("Atlas", NGUISettings.atlas, OnSelectAtlas, true, GUILayout.MinWidth(80f));EditorGUI.BeginDisabledGroup(NGUISettings.atlas == null);if (GUILayout.Button("New", GUILayout.Width(40f)))NGUISettings.atlas = null;EditorGUI.EndDisabledGroup();}GUILayout.EndHorizontal();List<Texture> textures = GetSelectedTextures();if (NGUISettings.atlas != null){Material mat = NGUISettings.atlas.spriteMaterial;Texture tex = NGUISettings.atlas.texture;// Material informationGUILayout.BeginHorizontal();{if (mat != null){if (GUILayout.Button("Material", GUILayout.Width(76f))) Selection.activeObject = mat;GUILayout.Label(" " + mat.name);}else{GUI.color = Color.grey;GUILayout.Button("Material", GUILayout.Width(76f));GUI.color = Color.white;GUILayout.Label(" N/A");}}GUILayout.EndHorizontal();// Texture atlas informationGUILayout.BeginHorizontal();{if (tex != null){if (GUILayout.Button("Texture", GUILayout.Width(76f))) Selection.activeObject = tex;GUILayout.Label(" " + tex.width + "x" + tex.height);}else{GUI.color = Color.grey;GUILayout.Button("Texture", GUILayout.Width(76f));GUI.color = Color.white;GUILayout.Label(" N/A");}}GUILayout.EndHorizontal();GUILayout.BeginHorizontal();{if (tex != null){if (GUILayout.Button("導出貼圖(PNG)", GUILayout.Width(120f))){string filePath = EditorUtility.SaveFolderPanel("保存貼圖到指定文件夾", "", "");ExportTexturePNGFromAtlas(filePath, NGUISettings.atlas);}}}GUILayout.EndHorizontal();}GUILayout.BeginHorizontal();NGUISettings.atlasPadding = Mathf.Clamp(EditorGUILayout.IntField("Padding", NGUISettings.atlasPadding, GUILayout.Width(100f)), 0, 8);GUILayout.Label((NGUISettings.atlasPadding == 1 ? "pixel" : "pixels") + " between sprites");GUILayout.EndHorizontal();GUILayout.BeginHorizontal();NGUISettings.atlasTrimming = EditorGUILayout.Toggle("Trim Alpha", NGUISettings.atlasTrimming, GUILayout.Width(100f));GUILayout.Label("Remove empty space");GUILayout.EndHorizontal();bool fixedShader = false;if (NGUISettings.atlas != null){Material mat = NGUISettings.atlas.spriteMaterial;if (mat != null){Shader shader = mat.shader;if (shader != null){if (shader.name == "Unlit/Transparent Colored"){NGUISettings.atlasPMA = false;fixedShader = true;}else if (shader.name == "Unlit/Premultiplied Colored"){NGUISettings.atlasPMA = true;fixedShader = true;}}}}if (!fixedShader){GUILayout.BeginHorizontal();NGUISettings.atlasPMA = EditorGUILayout.Toggle("PMA Shader", NGUISettings.atlasPMA, GUILayout.Width(100f));GUILayout.Label("Pre-multiplied alpha", GUILayout.MinWidth(70f));GUILayout.EndHorizontal();}//GUILayout.BeginHorizontal();//NGUISettings.keepPadding = EditorGUILayout.Toggle("Keep Padding", NGUISettings.keepPadding, GUILayout.Width(100f));//GUILayout.Label("or replace with trimmed pixels", GUILayout.MinWidth(70f));//GUILayout.EndHorizontal();#if !UNITY_5_6GUILayout.BeginHorizontal();NGUISettings.unityPacking = EditorGUILayout.Toggle("Unity Packer", NGUISettings.unityPacking, GUILayout.Width(100f));GUILayout.Label("or custom packer", GUILayout.MinWidth(70f));GUILayout.EndHorizontal();#endifGUILayout.BeginHorizontal();NGUISettings.trueColorAtlas = EditorGUILayout.Toggle("Truecolor", NGUISettings.trueColorAtlas, GUILayout.Width(100f));GUILayout.Label("force ARGB32 textures", GUILayout.MinWidth(70f));GUILayout.EndHorizontal();GUILayout.BeginHorizontal();NGUISettings.autoUpgradeSprites = EditorGUILayout.Toggle("Auto-upgrade", NGUISettings.autoUpgradeSprites, GUILayout.Width(100f));GUILayout.Label("replace textures with sprites", GUILayout.MinWidth(70f));GUILayout.EndHorizontal();#if !UNITY_5_6if (!NGUISettings.unityPacking){GUILayout.BeginHorizontal();NGUISettings.forceSquareAtlas = EditorGUILayout.Toggle("Force Square", NGUISettings.forceSquareAtlas, GUILayout.Width(100f));GUILayout.Label("if on, forces a square atlas texture", GUILayout.MinWidth(70f));GUILayout.EndHorizontal();}#endif#if UNITY_IPHONE || UNITY_ANDROIDGUILayout.BeginHorizontal();NGUISettings.allow4096 = EditorGUILayout.Toggle("4096x4096", NGUISettings.allow4096, GUILayout.Width(100f));GUILayout.Label("if off, limit atlases to 2048x2048");GUILayout.EndHorizontal(); #endifNGUIEditorTools.EndContents();if (NGUISettings.atlas != null){GUILayout.BeginHorizontal();GUILayout.Space(20f);if (textures.Count > 0){update = GUILayout.Button("Add/Update");}else if (GUILayout.Button("View Sprites")){SpriteSelector.ShowSelected();}GUILayout.Space(20f);GUILayout.EndHorizontal();}else{EditorGUILayout.HelpBox("You can create a new atlas by selecting one or more textures in the Project View window, then clicking \"Create\".", MessageType.Info);EditorGUI.BeginDisabledGroup(textures.Count == 0);GUILayout.BeginHorizontal();GUILayout.Space(20f);bool create = GUILayout.Button("Create");GUILayout.Space(20f);GUILayout.EndHorizontal();EditorGUI.EndDisabledGroup();if (create){string path = EditorUtility.SaveFilePanelInProject("Save As","New Atlas.prefab", "prefab", "Save atlas as...", NGUISettings.currentPath);if (!string.IsNullOrEmpty(path)){NGUISettings.currentPath = System.IO.Path.GetDirectoryName(path);GameObject go = AssetDatabase.LoadAssetAtPath(path, typeof(GameObject)) as GameObject;string matPath = path.Replace(".prefab", ".mat");replace = true;// Try to load the materialMaterial mat = AssetDatabase.LoadAssetAtPath(matPath, typeof(Material)) as Material;// If the material doesn't exist, create itif (mat == null){Shader shader = Shader.Find(NGUISettings.atlasPMA ? "Unlit/Premultiplied Colored" : "Unlit/Transparent Colored");mat = new Material(shader);// Save the materialAssetDatabase.CreateAsset(mat, matPath);AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);// Load the material so it's usablemat = AssetDatabase.LoadAssetAtPath(matPath, typeof(Material)) as Material;}// Create a new prefab for the atlasObject prefab = (go != null) ? go : PrefabUtility.CreateEmptyPrefab(path);// Create a new game object for the atlasstring atlasName = path.Replace(".prefab", "");atlasName = atlasName.Substring(path.LastIndexOfAny(new char[] { '/', '\\' }) + 1);go = new GameObject(atlasName);go.AddComponent<UIAtlas>().spriteMaterial = mat;// Update the prefabPrefabUtility.ReplacePrefab(go, prefab);DestroyImmediate(go);AssetDatabase.SaveAssets();AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);// Select the atlasgo = AssetDatabase.LoadAssetAtPath(path, typeof(GameObject)) as GameObject;NGUISettings.atlas = go.GetComponent<UIAtlas>();Selection.activeGameObject = go;}}}string selection = null;Dictionary<string, int> spriteList = GetSpriteList(textures);if (spriteList.Count > 0){NGUIEditorTools.DrawHeader("Sprites", true);{GUILayout.BeginHorizontal();GUILayout.Space(3f);GUILayout.BeginVertical();mScroll = GUILayout.BeginScrollView(mScroll);bool delete = false;int index = 0;foreach (KeyValuePair<string, int> iter in spriteList){++index;GUILayout.Space(-1f);bool highlight = (UIAtlasInspector.instance != null) && (NGUISettings.selectedSprite == iter.Key);GUI.backgroundColor = highlight ? Color.white : new Color(0.8f, 0.8f, 0.8f);GUILayout.BeginHorizontal(NGUIEditorTools.textArea, GUILayout.MinHeight(20f));GUI.backgroundColor = Color.white;GUILayout.Label(index.ToString(), GUILayout.Width(24f));if (GUILayout.Button(iter.Key, "OL TextField", GUILayout.Height(20f)))selection = iter.Key;if (iter.Value == 2){GUI.color = Color.green;GUILayout.Label("Add", GUILayout.Width(27f));GUI.color = Color.white;}else if (iter.Value == 1){GUI.color = Color.cyan;GUILayout.Label("Update", GUILayout.Width(45f));GUI.color = Color.white;}else{if (mDelNames.Contains(iter.Key)){GUI.backgroundColor = Color.red;if (GUILayout.Button("Delete", GUILayout.Width(60f))){delete = true;}GUI.backgroundColor = Color.green;if (GUILayout.Button("X", GUILayout.Width(22f))){mDelNames.Remove(iter.Key);delete = false;}GUI.backgroundColor = Color.white;}else{// If we have not yet selected a sprite for deletion, show a small "X" buttonif (GUILayout.Button("X", GUILayout.Width(22f))) mDelNames.Add(iter.Key);}}GUILayout.EndHorizontal();}GUILayout.EndScrollView();GUILayout.EndVertical();GUILayout.Space(3f);GUILayout.EndHorizontal();// If this sprite was marked for deletion, remove it from the atlasif (delete){List<SpriteEntry> sprites = new List<SpriteEntry>();ExtractSprites(NGUISettings.atlas, sprites);for (int i = sprites.Count; i > 0; ){SpriteEntry ent = sprites[--i];if (mDelNames.Contains(ent.name))sprites.RemoveAt(i);}UpdateAtlas(NGUISettings.atlas, sprites);mDelNames.Clear();NGUIEditorTools.RepaintSprites();}else if (update) UpdateAtlas(textures, true);else if (replace) UpdateAtlas(textures, false);if (NGUISettings.atlas != null && !string.IsNullOrEmpty(selection)){NGUIEditorTools.SelectSprite(selection);}else if (NGUISettings.autoUpgradeSprites && (update || replace)){NGUIEditorTools.UpgradeTexturesToSprites(NGUISettings.atlas);NGUIEditorTools.RepaintSprites();}}}if (NGUISettings.atlas != null && textures.Count == 0)EditorGUILayout.HelpBox("You can reveal more options by selecting one or more textures in the Project View window.", MessageType.Info);// Uncomment this line if you want to be able to force-sort the atlas//if (NGUISettings.atlas != null && GUILayout.Button("Sort Alphabetically")) NGUISettings.atlas.SortAlphabetically();} }

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