private static void CreateAtlasRaw()
{
var path = AssetDatabase.GetAssetPath(Selection.activeObject);
path = string.IsNullOrEmpty(path) ? "Assets" : path;
if (File.Exists(path))
{
path = Path.GetDirectoryName(path);
}
var atlas = CreateInstance <AtlasRaw>();
atlas.bins = new BinRaw[0];
var setting = new PackSetting();
atlas.maxSize = setting.maxAtlasSize;
atlas.padding = setting.padding;
atlas.isPOT = setting.isPOT;
atlas.forceSquare = setting.forceSquare;
var assetPath = Path.Combine(path, PackConst.DefaultAtlasAssetName);
assetPath = AssetDatabase.GenerateUniqueAssetPath(assetPath);
atlas.id = PackUtil.GenerateAtlasId();
AssetDatabase.CreateAsset(atlas, assetPath);
Selection.activeObject = AssetDatabase.LoadAssetAtPath <AtlasRaw>(assetPath);
}
public PackSetting(PackSetting data)
{
maxAtlasSize = data.maxAtlasSize;
padding = data.padding;
isPOT = data.isPOT;
forceSquare = data.forceSquare;
}
public static AtlasRaw Pack(string targetFolder, IPackSprite[] textures, PackSetting setting)
{
EditorUtility.DisplayProgressBar("", "generate atlas...", 0.5f);
var atlasPath = Path.Combine(targetFolder, PackConst.DefaultAtlasAssetName);
atlasPath = AssetDatabase.GenerateUniqueAssetPath(atlasPath);
var atlasRaw = new PackAtlas(setting, atlasPath, textures).GenerateAtlas();
EditorUtility.ClearProgressBar();
return(atlasRaw);
}
public void Setup(PackSetting setting, BinRaw bin)
{
this.setting = setting;
this.bin = bin;
mainAsset = bin.main;
mainAssetPath = AssetDatabase.GetAssetPath(mainAsset);
mainImporter = AssetImporter.GetAtPath(mainAssetPath) as TextureImporter;
if (bin.addition != null)
{
addAsset = bin.addition;
addAssetPath = AssetDatabase.GetAssetPath(addAsset);
addImporter = AssetImporter.GetAtPath(addAssetPath) as TextureImporter;
}
transparency = PackUtil.CheckAtlasBinTranparency(bin);
maxTextureSize = PackUtil.Scale2POT(Mathf.Max((int)bin.size.x, (int)bin.size.y));
}
public PackAtlas(PackSetting setting, string atlasPath, IPackSprite[] sprites)
{
mSetting = setting;
mAtlasPath = atlasPath;
mSprites = sprites;
}
/// <summary>
/// Translate by sprite's type
/// </summary>
/// <param name="targetFolder">Target folder for generating atlas or sprite.</param>
/// <param name="forward">If true, translate sprite to atlas, else translate atlas to sprite</param>
public void Translate(string targetFolder, bool forward, string resourceFolder = null, PackSetting setting = null)
{
var collectors = new List <ICollector>();
var transfer = new List <UnityEngine.UI.Sprite>();
var exclude = new List <UnityEngine.UI.Sprite>();
var prefabs = AssetDatabase.FindAssets("t:prefab").Select(i => AssetDatabase.GUIDToAssetPath(i)).ToArray();
for (int i = 0; i < prefabs.Length; i++)
{
EditorUtility.DisplayProgressBar("Prefab", prefabs[i], (float)i / prefabs.Length);
var prefabCollector = new PrefabCollector();
prefabCollector.path = prefabs[i];
prefabCollector.Collect();
collectors.Add(prefabCollector);
transfer.AddRange(prefabCollector.sprites);
}
var scenes = AssetDatabase.FindAssets("t:scene").Select(i => AssetDatabase.GUIDToAssetPath(i)).ToArray();
for (int i = 0; i < scenes.Length; i++)
{
EditorUtility.DisplayProgressBar("Scene", scenes[i], (float)i / scenes.Length);
var sceneCollector = new SceneCollector();
sceneCollector.path = scenes[i];
sceneCollector.Collect();
collectors.Add(sceneCollector);
transfer.AddRange(sceneCollector.sprites);
}
var clips = AssetDatabase.FindAssets("t:animationclip").Select(i => AssetDatabase.GUIDToAssetPath(i)).ToArray();
for (int i = 0; i < clips.Length; i++)
{
EditorUtility.DisplayProgressBar("AnimationClip", clips[i], (float)i / scenes.Length);
var clipCollector = new AnimationClipCollector();
clipCollector.path = clips[i];
clipCollector.Collect();
exclude.AddRange(clipCollector.sprites);
}
// 过滤类型不符的sprite，过滤在AnimationClip引用的sprite，过滤不在resourceFolder中的资源
for (int i = transfer.Count - 1; i >= 0; i--)
{
if (transfer[i] != null &&
((transfer[i].type == UnityEngine.UI.Sprite.Type.Sprite) != forward ||
exclude.Any(e => e == transfer[i])))
{
transfer[i] = null;
}
}
if (!string.IsNullOrEmpty(resourceFolder))
{
for (int i = transfer.Count - 1; i >= 0; i--)
{
if (transfer[i] != null)
{
var transferPath = "";
if (transfer[i].type == UnityEngine.UI.Sprite.Type.Sprite)
{
transferPath = AssetDatabase.GetAssetPath(transfer[i].sprite);
}
else if (transfer[i].type == UnityEngine.UI.Sprite.Type.Atlas)
{
transferPath = AssetDatabase.GetAssetPath(transfer[i].atlasRaw);
}
if (!transferPath.Contains(resourceFolder))
{
transfer[i] = null;
}
}
}
}
if (forward)
{
MapSprite2Atlas(targetFolder, setting, transfer);
}
else
{
MapAtlas2Sprite(targetFolder, transfer);
}
Util.RebindThenTranslate(collectors, transfer);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
EditorUtility.ClearProgressBar();
}
private static void MapSprite2Atlas(string targetFolder, PackSetting setting, List <UnityEngine.UI.Sprite> sprites)
{
var spritePaths = new List <string>();
foreach (var sprite in sprites)
{
if (sprite != null && sprite.type == UnityEngine.UI.Sprite.Type.Sprite)
{
var path = AssetDatabase.GetAssetPath(sprite.sprite);
if (!string.IsNullOrEmpty(path) && !spritePaths.Contains(path))
{
spritePaths.Add(path);
}
}
}
var pathSpriteMap = new Dictionary <string, UnityEngine.UI.Sprite>();
var spriteGroups = spritePaths.GroupBy(path =>
{
var importer = AssetImporter.GetAtPath(path) as TextureImporter;
return(importer.spritePackingTag);
});
foreach (var group in spriteGroups)
{
var groupPaths = group.ToArray();
var groupNames = Util.MapSpritePath2SpriteNameInAtlas(groupPaths);
var groupSprites = new PackAssetSprite[groupPaths.Length];
for (int i = 0; i < groupPaths.Length; i++)
{
groupSprites[i] = new PackAssetSprite(groupPaths[i])
{
name = groupNames[i]
};
groupSprites[i].quality = PackUtil.CheckTextureCompressed(groupPaths[i]) ? PackQuality.AlphaSplit : PackQuality.Full;
}
var groupTag = string.IsNullOrEmpty(group.Key) ? EmptyTagName : group.Key;
var groupFolder = Path.Combine(targetFolder, groupTag);
if (!Directory.Exists(groupFolder))
{
Directory.CreateDirectory(groupFolder);
}
var atlasRaw = AtlasPacker.Pack(groupFolder, groupSprites, setting);
for (int i = 0; i < groupPaths.Length; i++)
{
pathSpriteMap[groupPaths[i]] = new UnityEngine.UI.Sprite(atlasRaw, groupNames[i]);
}
}
;
for (int i = 0; i < sprites.Count; i++)
{
var sprite = sprites[i];
if (sprite != null && sprite.type == UnityEngine.UI.Sprite.Type.Sprite)
{
var path = AssetDatabase.GetAssetPath(sprite.sprite);
if (!string.IsNullOrEmpty(path))
{
sprites[i] = pathSpriteMap[path];
}
}
}
}
public override void OnInspectorGUI()
{
OnValidateSelected();
var atlas = target as AtlasRaw;
EditorGUILayout.GetControlRect(false, 2);
int clickIndex = AtlasEditorUtil.TitleBar(new GUIContent[]
{
new GUIContent("+File"),
new GUIContent("+Folder"),
});
if (clickIndex == 0)
{
DisplayImportMenu(atlas, false);
}
else if (clickIndex == 1)
{
DisplayImportMenu(atlas, true);
}
mRepackFold = AtlasEditorUtil.ToggleBar(new GUIContent("Settings"), mRepackFold);
if (mRepackFold)
{
if (!mPackDataInit)
{
mPackDataInit = true;
mSetting = new PackSetting(atlas.maxSize, atlas.padding, atlas.isPOT, atlas.forceSquare);
}
EditorGUI.indentLevel += 1;
mSetting.maxAtlasSize = EditorGUILayout.IntPopup("Max Size", mSetting.maxAtlasSize, Array.ConvertAll(PackConst.AtlasSizeList, value => value.ToString()), PackConst.AtlasSizeList);
mSetting.padding = EditorGUILayout.IntField("Padding", mSetting.padding);
mSetting.isPOT = EditorGUILayout.Toggle("Power Of 2", mSetting.isPOT);
GUI.enabled = mSetting.isPOT;
if (!mSetting.isPOT)
{
mSetting.forceSquare = false;
}
mSetting.forceSquare = EditorGUILayout.Toggle("Force Square", mSetting.forceSquare);
GUI.enabled = true;
var rect = EditorGUILayout.GetControlRect(false, 20);
if (GUI.Button(new Rect(rect.center.x - 75, rect.y, 150, rect.height), "Repack"))
{
AtlasPacker.Repack(atlas, null, mSetting);
}
EditorGUI.indentLevel -= 1;
EditorGUILayout.Space();
}
EditorGUI.BeginChangeCheck();
mSearchPattern = AtlasEditorUtil.SearchBar(new GUIContent("Search Sprite"), mSearchPattern);
if (EditorGUI.EndChangeCheck() || mAtlasDirty)
{
mSearchResults.Clear();
if (!string.IsNullOrEmpty(mSearchPattern))
{
mSearchResults.AddRange(AtlasEditorUtil.SearchSprites(atlas, 0, mSearchPattern));
}
}
if (mAtlasDirty)
{
mAtlasDirty = false;
mSelectedBin = Mathf.Clamp(mSelectedBin, 0, atlas.bins.Length - 1);
mSelectedSprites.Clear();
}
EditorGUI.indentLevel += 1;
if (!string.IsNullOrEmpty(mSearchPattern))
{
EditorGUILayout.LabelField(string.Format("{0} results", mSearchResults.Count));
}
if (mSearchResults != null && mSearchResults.Count > 0)
{
OnValidateResult();
OnSearchResultGUI();
}
EditorGUI.indentLevel -= 1;
if (atlas.bins.Length > 0)
{
var titleRect = EditorGUILayout.GetControlRect(false, EditorStyles.toolbar.fixedHeight);
var controlId = GUIUtility.GetControlID(FocusType.Passive);
var eventType = Event.current.GetTypeForControl(controlId);
if (eventType == EventType.Repaint)
{
EditorStyles.toolbar.Draw(titleRect, GUIContent.none, controlId);
}
var binNames = Array.ConvertAll(atlas.bins, i => PackUtil.GetDisplayName(i));
var binIndexes = new int[binNames.Length];
for (int i = 0; i < binNames.Length; i++)
{
binIndexes[i] = i;
}
mSelectedBin = EditorGUI.IntPopup(new Rect(10, titleRect.y, titleRect.width - 10, titleRect.height), "Preview Bin", mSelectedBin, binNames, binIndexes, EditorStyles.toolbarPopup);
mSelectedBin = Mathf.Clamp(mSelectedBin, 0, atlas.bins.Length - 1);
EditorGUILayout.Space();
var bin = atlas.bins[mSelectedBin];
var previewRect = EditorGUILayout.GetControlRect(false, 512);
previewRect.width = Mathf.Min(previewRect.width, (float)bin.main.width / bin.main.height * previewRect.height);
previewRect.height = (float)bin.main.height / bin.main.width * previewRect.width;
OnPreviewBin(previewRect);
}
}
protected virtual BinRaw[] PackSprites(PackSetting setting, IPackSprite[] sprites)
{
var textures = sprites.Select(sprite => new Packer.Area((int)sprite.rect.width, (int)sprite.rect.height)).ToArray();
var spriteRaws = new List <SpriteRaw>();
var packers = new List <Packer>();
var sizeList = PackConst.AtlasSizeList;
var maxSize = setting.maxAtlasSize;
var padding = setting.padding;
var isPOT = forcePowerOf2 || setting.isPOT;
var forceSquare = this.forceSquare || setting.forceSquare;
var index = 0;
while (index < textures.Length)
{
var texArea = textures[index];
Packer.Rect texRect = null;
for (int i = 0; i < packers.Count; i++)
{
var packer = packers[i];
while (true)
{
if (packer.Push(texArea, out texRect))
{
spriteRaws.Add(new SpriteRaw()
{
bin = i,
rect = new Rect(texRect.x, texRect.y, texRect.width, texRect.height),
});
break;
}
var width = packer.bin.width;
var height = packer.bin.height;
if (forceSquare)
{
width *= 2;
height *= 2;
}
else
{
if (width > height)
{
height *= 2;
}
else
{
width *= 2;
}
}
if (width > maxSize || height > maxSize)
{
break;
}
packer.Extend(new Packer.Bin(width, height));
}
if (texRect != null)
{
break;
}
}
if (texRect == null)
{
packers.Add(new Packer(Packer.Algorithm.AdvancedHorizontalSkyline,
new Packer.Bin(sizeList[0], sizeList[0]), padding));
}
else
{
index += 1;
}
}
var bins = new BinRaw[packers.Count];
for (int i = 0; i < packers.Count; i++)
{
bins[i] = new BinRaw();
bins[i].size = !isPOT && !forceSquare ?
Vector2.zero : new Vector2(packers[i].bin.width, packers[i].bin.height);
}
if (!isPOT && !forceSquare)
{
for (int i = 0; i < spriteRaws.Count; i++)
{
var sprite = spriteRaws[i];
var bin = bins[sprite.bin];
bin.size = new Vector2(
Mathf.Max(bin.size.x, sprite.rect.xMax),
Mathf.Max(bin.size.y, sprite.rect.yMax));
}
if (forceMultiplyOf4)
{
foreach (var bin in bins)
{
bin.size = new Vector2(
Mathf.CeilToInt(bin.size.x / 4) * 4,
Mathf.CeilToInt(bin.size.y / 4) * 4);
}
}
}
for (int i = 0; i < sprites.Length; i++)
{
var sprite = sprites[i];
var spriteRaw = spriteRaws[i];
spriteRaw.name = sprite.name.Replace("\\", "/");
spriteRaw.border = sprite.border;
spriteRaw.pivot = sprite.pivot;
var rect = spriteRaw.rect;
var binRaw = bins[spriteRaw.bin];
binRaw.sprites = binRaw.sprites ?? new SpriteRaw[0];
Array.Resize(ref binRaw.sprites, binRaw.sprites.Length + 1);
binRaw.sprites[binRaw.sprites.Length - 1] = spriteRaw;
var main = binRaw.main;
var add = binRaw.addition;
var colors = sprite.Read();
if (main == null)
{
main = PackUtil.CreateBlankTexture((int)binRaw.size.x, (int)binRaw.size.y,
!alphaSplit && transparency ? TextureFormat.RGBA32 : TextureFormat.RGB24);
main.hideFlags = HideFlags.DontUnloadUnusedAsset;
binRaw.main = main;
}
main.SetPixels(
(int)rect.x, (int)rect.y,
(int)rect.width, (int)rect.height,
colors);
if (alphaSplit && transparency)
{
if (add == null)
{
add = PackUtil.CreateBlankTexture((int)binRaw.size.x, (int)binRaw.size.y, TextureFormat.RGB24);
add.hideFlags = HideFlags.DontUnloadUnusedAsset;
binRaw.addition = add;
}
for (int c = 0; c < colors.Length; c++)
{
colors[c] = new Color(colors[c].a, 0, 0);
}
add.SetPixels(
(int)rect.x, (int)rect.y,
(int)rect.width, (int)rect.height,
colors);
}
}
return(bins);
}
public void Setup(PackSetting setting, IPackSprite[] sprites, bool transparency)
{
mSetting = setting;
mSprites = sprites;
mTransparency = transparency;
}
public static AtlasRaw Repack(AtlasRaw atlasRaw, IPackSprite[] textures = null, PackSetting setting = null)
{
EditorUtility.DisplayProgressBar("", "repack atlas...", 0.5f);
textures = textures ?? PackAtlasSprite.ListSprites(atlasRaw);
setting = setting ?? new PackSetting(atlasRaw.maxSize, atlasRaw.padding, atlasRaw.isPOT, atlasRaw.forceSquare);
var atlasPath = AssetDatabase.GetAssetPath(atlasRaw);
atlasRaw = new PackAtlas(setting, atlasPath, textures).GenerateAtlas();
EditorUtility.ClearProgressBar();
if (atlasRaw == null)
{
Debug.LogError("Pack failed.");
return(null);
}
RefreshUI();
return(atlasRaw);
}