public void PackBatch(AtlasImageBatch batch)
{
PackBatchInternal(batch);
if (batch.SubBatches != null)
{
foreach (var subBatch in batch.SubBatches)
{
PackBatchInternal(subBatch);
}
}
}
private AtlasImageBatch CreateBatch(AtlasRootDescription desc, DirectoryInfo origin, DirectoryInfo dir)
{
var batch = new AtlasImageBatch(desc, dir);
foreach (var file in dir.GetFiles("*", SearchOption.TopDirectoryOnly))
{
string relativeFilePath = PathHelper.GetNormalizedPath(PathHelper.GetRelativePath(origin, file));
if (_exclusionSet.Contains(relativeFilePath))
{
continue;
}
var imgInfo = Image.Identify(_config, file.OpenRead());
if (imgInfo != null)
{
string relativeImgPath = PathHelper.GetNormalizedPath(PathHelper.GetRelativePath(_directory, file));
relativeImgPath = Path.ChangeExtension(relativeImgPath, null);
if (!desc.IncludeRootName)
{
int firstSeparator = relativeImgPath.IndexOf('/');
if (firstSeparator != -1)
{
relativeImgPath = relativeImgPath.Substring(firstSeparator + 1);
}
}
batch.Images.Add(new AtlasImage(file, relativeImgPath, imgInfo.Width, imgInfo.Height));
}
}
foreach (var subDir in dir.EnumerateDirectories("*", SearchOption.TopDirectoryOnly))
{
string relativeSubDirPath = PathHelper.GetNormalizedPath(PathHelper.GetRelativePath(origin, subDir));
if (_exclusionSet.Contains(relativeSubDirPath))
{
continue;
}
var subBatch = CreateBatch(desc, origin, subDir);
batch.SubBatches.Add(subBatch);
}
return(batch);
}
private void PackBatchInternal(AtlasImageBatch batch)
{
foreach (var img in batch.Images)
{
if (img.Width > MaxSize || img.Height > MaxSize)
{
_singles.Add(img);
continue;
}
int index = 0;
TryInsert:
AtlasPackerState state = _states[index];
if (!state.Insert(img, out Rect rect))
{
if (!state.Step())
{
index++;
while (index < _states.Count && _states[index].IsSingle)
{
index++;
}
if (index == _states.Count)
{
_states.Add(new AtlasPackerState(MaxSize, Spacing, false));
}
}
goto TryInsert;
}
state.Items.Add(new AtlasPackerState.Item(rect, img));
}
}