public static void BuildAssetBundles()
{
// Choose the output path according to the build target.
var outputPath = CreateAssetBundleDirectory();
const BuildAssetBundleOptions options = BuildAssetBundleOptions.ChunkBasedCompression;
var targetPlatform = EditorUserBuildSettings.activeBuildTarget;
var rules = GetBuildRules();
var builds = rules.GetBuilds();
var assetBundleManifest = BuildPipeline.BuildAssetBundles(outputPath, builds, options, targetPlatform);
if (assetBundleManifest == null)
{
return;
}
var manifest = GetManifest();
var dirs = new List <string>();
var assets = new List <AssetRef>();
var bundles = assetBundleManifest.GetAllAssetBundles();
var bundle2Ids = new Dictionary <string, int>();
for (var index = 0; index < bundles.Length; index++)
{
var bundle = bundles[index];
bundle2Ids[bundle] = index;
}
var bundleRefs = new List <BundleRef>();
for (var index = 0; index < bundles.Length; index++)
{
var bundle = bundles[index];
var deps = assetBundleManifest.GetAllDependencies(bundle);
var path = string.Format("{0}/{1}", outputPath, bundle);
if (File.Exists(path))
{
using (var stream = File.OpenRead(path))
{
bundleRefs.Add(new BundleRef
{
name = bundle,
id = index,
deps = Array.ConvertAll(deps, input => bundle2Ids[input]),
len = stream.Length,
hash = assetBundleManifest.GetAssetBundleHash(bundle).ToString(),
});
}
}
else
{
Debug.LogError(path + " file not exsit.");
}
}
for (var i = 0; i < rules.ruleAssets.Length; i++)
{
var item = rules.ruleAssets[i];
var path = item.path;
var dir = Path.GetDirectoryName(path);
var index = dirs.FindIndex(o => o.Equals(dir));
if (index == -1)
{
index = dirs.Count;
dirs.Add(dir);
}
var asset = new AssetRef {
bundle = bundle2Ids[item.bundle], dir = index, name = Path.GetFileName(path)
};
assets.Add(asset);
}
manifest.searchDirs = Array.ConvertAll(rules.rules, input => input.searchPath);
manifest.dirs = dirs.ToArray();
manifest.assets = assets.ToArray();
manifest.bundles = bundleRefs.ToArray();
EditorUtility.SetDirty(manifest);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
var version = 0;
var versionFile = string.Format("{0}/{1}", outputPath, Versions.BuildVersion);
if (File.Exists(versionFile))
{
version = int.Parse(File.ReadAllText(versionFile));
version = version + 1;
}
File.WriteAllText(versionFile, version.ToString());
var manifestBundleName = "manifest.unity3d";
builds = new[]
{
new AssetBundleBuild
{
assetNames = new[] { AssetDatabase.GetAssetPath(manifest), },
assetBundleName = manifestBundleName
}
};
BuildPipeline.BuildAssetBundles(outputPath, builds, options, targetPlatform);
ArrayUtility.Add(ref bundles, manifestBundleName);
ArrayUtility.Add(ref bundles, Versions.BuildVersion);
if (Directory.Exists(rules.outputPath))
{
var files = Directory.GetFiles(rules.outputPath);
foreach (var file in files)
{
File.Delete(file);
}
}
else
{
Directory.CreateDirectory(rules.outputPath);
}
foreach (var item in bundles)
{
var sourceFileName = string.Format("{0}/{1}", outputPath, item);
var destFileName = string.Format("{0}/{1}", rules.outputPath, item);
File.Copy(sourceFileName, destFileName, true);
}
Versions.MakeRecords(rules.outputPath);
}