// example args: -input.path=D:\some\path\to\images\here -filter=*.jpg -prefix=team -output.extension=jpg -output.path= -output.resize=240
static void Main(string[] args)
{
string folder = null;
string filter = "*.*";
string atlasPath = Directory.GetCurrentDirectory();
string cssPath = null;
string jsonPath = null;
string xmlPath = null;
string csvPath = null;
string atlasExtension = "jpg";
string prefix = null;
int resize = 0;
var globalMargin = new Margin();
bool normalize = false;
foreach (var entry in args)
{
var arg = entry;
if (!arg.StartsWith("-"))
{
Console.WriteLine("Invalid argument: " + arg);
return;
}
arg = arg.Substring(1);
var temp = arg.Split(new char[] { '=' }, 2);
var key = temp[0].ToLower();
var val = temp.Length == 2 ? temp[1] : null;
switch (key)
{
case "input.path": folder = val; break;
case "input.filter": filter = val; break;
case "prefix": prefix = val; break;
case "atlas.extension": atlasExtension = val.Replace(".", ""); break;
case "atlas.path": atlasPath = val; break;
case "resize": resize = int.Parse(val); break;
case "css.path": cssPath = val; break;
case "json.path": jsonPath = val; break;
case "xml.path": xmlPath = val; break;
case "csv.path": csvPath = val; break;
case "margin.X": globalMargin.X = int.Parse(val); break;
case "margin.Y": globalMargin.Y = int.Parse(val); break;
case "margin": globalMargin.X = int.Parse(val); globalMargin.Y = globalMargin.X; break;
case "normalize": normalize = bool.Parse(val); break;
}
}
if (normalize && resize > 0)
{
Console.WriteLine("Normalize and resize options are mutually exclusive.");
return;
}
FixPath(ref atlasPath);
FixPath(ref cssPath);
FixPath(ref jsonPath);
FixPath(ref xmlPath);
FixPath(ref csvPath);
if (folder == null)
{
Console.WriteLine("Please specify a folder. Eg: -input.path=some_path");
return;
}
if (prefix == null)
{
Console.WriteLine("Please specify a atlas prefix. Eg: --prefix=something");
return;
}
var outPicName = prefix + "." + atlasExtension;
var outCSSName = prefix + ".css";
var files = Directory.GetFiles(folder, filter);
var images = new Dictionary <string, Bitmap>();
int count = 0;
int avgWidth = 0;
int avgHeight = 0;
int maxWidth = 0;
int maxHeight = 0;
foreach (var file in files)
{
var img = new Bitmap(Bitmap.FromFile(file));
if (resize != 0)
{
img = new Bitmap(img, new Size(resize, resize));
}
images[file] = img;
count++;
maxWidth = Math.Max(maxWidth, img.Width);
maxHeight = Math.Max(maxHeight, img.Height);
avgWidth += img.Width;
avgHeight += img.Height;
}
int maxSize = Math.Max(maxHeight, maxWidth);
avgWidth /= count;
avgHeight /= count;
int side = (int)Math.Ceiling(Math.Sqrt(count));
int atlasWidth = avgWidth * side;
int atlasHeight = avgHeight * side;
int tot;
int tries = 0;
RectanglePacker <string> packer;
var margins = new Dictionary <string, Margin>();
if (normalize)
{
foreach (var file in files)
{
var img = images[file];
var margin = new Margin()
{
X = (maxSize - img.Width) / 2 + globalMargin.X,
Y = (maxSize - img.Height) / 2 + globalMargin.Y,
};
margins[file] = margin;
}
}
else
{
foreach (var file in files)
{
margins[file] = globalMargin;
}
}
do
{
packer = new RectanglePacker <string>();
foreach (var entry in images)
{
var margin = margins[entry.Key];
packer.AddRect(entry.Value.Width + margin.X * 2, entry.Value.Height + margin.Y * 2, entry.Key);
}
tot = packer.Pack(0, 0, atlasWidth, atlasHeight);
if (tot == 0)
{
break;
}
if (tries % 2 == 0)
{
atlasWidth *= 2;
}
else
{
atlasHeight *= 2;
}
tries++;
if (tries > 5)
{
break;
}
} while (true);
if (tot == 0)
{
var output = new Bitmap(atlasWidth, atlasHeight);
using (Graphics g = Graphics.FromImage(output))
{
foreach (var file in files)
{
int x, y;
packer.GetRect(file, out x, out y);
var margin = margins[file];
x += margin.X;
y += margin.Y;
var img = images[file];
g.DrawImage(img, x, y, img.Width, img.Height);
Console.WriteLine("Merged " + file);
}
}
output.Save(atlasPath + outPicName);
Console.WriteLine("Generated " + atlasPath + outPicName);
if (cssPath != null)
{
var sb = new StringBuilder();
int index = 0;
foreach (var file in files)
{
var name = Path.GetFileNameWithoutExtension(file).ToLower();
if (index > 0)
{
sb.Append(", ");
}
if (index % side == side - 1)
{
sb.AppendLine();
}
sb.Append($".{prefix}-{name}");
index++;
}
sb.Append('{');
sb.AppendLine();
sb.AppendLine($"\tbackground-image: url('{outPicName}');");
sb.AppendLine("\tbackground-repeat: no-repeat;");
sb.Append('}');
sb.AppendLine();
foreach (var file in files)
{
int x, y;
packer.GetRect(file, out x, out y);
var margin = margins[file];
x += margin.X;
y += margin.Y;
var name = Path.GetFileNameWithoutExtension(file).ToLower();
var img = images[file];
sb.AppendLine();
sb.AppendLine("." + prefix + "-" + name + " {");
sb.AppendLine($"\twidth: {img.Width}px;");
sb.AppendLine($"\theight: {img.Height}px;");
sb.AppendLine($"\tbackground-position: -{x}px -{y}px;");
sb.Append('}');
sb.AppendLine();
}
File.WriteAllText(cssPath + outCSSName, sb.ToString());
Console.WriteLine("Generated " + cssPath + outCSSName);
}
if (xmlPath != null || csvPath != null || jsonPath != null)
{
if (jsonPath != null)
{
var node = ExportToNode(files, images, margins, packer, false);
var json = JSONWriter.WriteToString(node);
File.WriteAllText(jsonPath + prefix + ".json", json);
}
if (xmlPath != null)
{
var node = ExportToNode(files, images, margins, packer, true);
var xml = XMLWriter.WriteToString(node);
File.WriteAllText(xmlPath + prefix + ".xml", xml);
}
if (csvPath != null)
{
var node = ExportToNode(files, images, margins, packer, false);
var csv = CSVWriter.WriteToString(node);
File.WriteAllText(csvPath + prefix + ".csv", csv);
}
}
}
else
{
Console.WriteLine("Failed packing...");
}
}