public static BuildCommandSet GenerateBuildCommandSet(BuildInput input, BuildSettings settings)
{
// Need to specal case sprites as we only want to include the source texutre in certain situations
m_SpriteMap.Clear();
// Create commands array matching the size of the input
var commandSet = new BuildCommandSet();
commandSet.commands = new BuildCommandSet.Command[input.definitions.Length];
for (var i = 0; i < input.definitions.Length; ++i)
{
var definition = input.definitions[i];
// Populate each command from asset bundle definition
var command = new BuildCommandSet.Command();
command.assetBundleName = definition.assetBundleName;
command.explicitAssets = new BuildCommandSet.AssetLoadInfo[definition.explicitAssets.Length];
// Fill out asset load info and references for each asset in the definition
var allObjects = new HashSet <ObjectIdentifier>();
for (var j = 0; j < definition.explicitAssets.Length; ++j)
{
var explicitAsset = new BuildCommandSet.AssetLoadInfo();
explicitAsset.asset = definition.explicitAssets[j];
explicitAsset.path = AssetDatabase.GUIDToAssetPath(explicitAsset.asset.ToString());
explicitAsset.includedObjects = AssetBundleBuildInterface.GetPlayerObjectIdentifiersInAsset(definition.explicitAssets[j]);
explicitAsset.referencedObjects = AssetBundleBuildInterface.GetPlayerDependenciesForObjects(explicitAsset.includedObjects);
// Is this asset a sprite?
var type = AssetDatabase.GetMainAssetTypeAtPath(explicitAsset.path);
if (type == typeof(Texture2D) && explicitAsset.referencedObjects.Length == 1)
{
// Source texture should always be the first included object, atlas should always be the first referenced object
m_SpriteMap.Add(explicitAsset.referencedObjects[0].guid);
}
command.explicitAssets[j] = explicitAsset;
allObjects.UnionWith(explicitAsset.includedObjects);
allObjects.UnionWith(explicitAsset.referencedObjects);
}
command.assetBundleObjects = allObjects.ToArray();
commandSet.commands[i] = command;
}
// TODO: Debug printing
DebugPrintCommandSet(ref commandSet);
// At this point, We have generated fully self contained asset bundles with 0 dependencies.
// Default implementation is to reduce duplication of objects by declaring dependencies to other asset
// bundles if that other asset bundle has an explicit asset declared that contains the objects needed
// We also remove any built in unity objects as they are built with the player (We may want to change this part in the future)
CalculateAssetBundleBuildDependencies(ref commandSet);
// Note: I may, or may not feel dirty doing mutable things to what otherwise should be immutable struct
// TODO: Debug printing
DebugPrintCommandSet(ref commandSet);
return(commandSet);
}
static void BuildAssetBundlesMenuItem()
{
var input = AssetBundleBuildInterface.GenerateAssetBundleBuildInput();
var settings = GenerateBuildSettings();
var compression = GenerateBuildCompression();
// Rebuild sprite atlas cache for correct dependency calculation & writting
Packer.RebuildAtlasCacheIfNeeded(settings.target, true, Packer.Execution.Normal);
// Generate command set with dependencies
var commands = GenerateBuildCommandSet(input, settings);
// Ensure the output path is created
// TODO: mabe we should do something if it exists, incremental building?
Directory.CreateDirectory(settings.outputFolder);
var output = AssetBundleBuildInterface.WriteResourcefilesForAssetBundles(commands, settings);
foreach (var bundle in output.results)
{
var filePath = Path.Combine(settings.outputFolder, bundle.assetBundleName);
Directory.CreateDirectory(Path.GetDirectoryName(filePath));
AssetBundleBuildInterface.ArchiveAndCompressAssetBundle(bundle.resourceFiles, filePath, compression);
}
CacheAssetBundleBuildOutput(output, settings);
}
static void BuildAssetBundlesMenuItem()
{
var input = AssetBundleBuildInterface.GenerateAssetBundleBuildInput();
var settings = GenerateBuildSettings();
var compression = GenerateBuildCompression();
var commands = GenerateBuildCommandSet(input, settings);
// Ensure the output path is created
// TODO: mabe we should do something if it exists, incremental building?
Directory.CreateDirectory(settings.outputFolder);
var output = AssetBundleBuildInterface.WriteResourcefilesForAssetBundles(commands, settings);
//foreach (var bundle in output.results)
// AssetBundleBuildInterface.ArchiveAndCompressAssetBundle(bundle.resourceFiles, Path.Combine(settings.outputFolder, bundle.assetBundleName), compression);
//CacheAssetBundleBuildOutput(output, settings);
}
