Custom Build Script for platform-specific assets

Let's say I have two asset variants: Standalone and Mobile. Such assets could be a texture, prefab or even scene with it's corresponding references. I want them both to be available in Use Asset Database Play Mode Script in Editor but one of them (and all it's references that are not referencing by other assets) should be excluded from final platform-specific generated bundles.

I tried to achieve this with custom Build Script derived from BuildScriptPackedMode by removing labeled asset entries in overridden DoBuild / ProcessGroup methods with no luck.

 

Ok I've found a temporary solution for this using custom AddressableAssetGroupSchema attached to groups.

Custom build script

Code (CSharp):

1. public class PlatformSpecificBuildScript : BuildScriptPackedMode
2.     {
3.         protected override string ProcessGroup(AddressableAssetGroup assetGroup, AddressableAssetsBuildContext aaContext)
4.         {
5.             var platformSchema = assetGroup.GetSchema<PlatformSpecificGroupSchema>();
6.             var groupSchema = assetGroup.GetSchema<BundledAssetGroupSchema>();
7.             if (platformSchema != null && groupSchema != null)
8.             {
9.                 var activePlatform = PlatformMappingService.GetPlatform();
10.                 groupSchema.IncludeInBuild = platformSchema.TargetPlatforms.Contains(activePlatform);
11.             }
12.  
13.             return base.ProcessGroup(assetGroup, aaContext);
14.         }
15.     }

Custom AddressableAssetGroupSchema

Code (CSharp):

1. public class PlatformSpecificGroupSchema : AddressableAssetGroupSchema
2.     {
3.         public AddressablesPlatform[] TargetPlatforms => _targetPlatforms;
4.         [SerializeField] private AddressablesPlatform[] _targetPlatforms = new AddressablesPlatform[0];
5.     }

Group settings


This is however requires a separate group for each platform. Still looking for better solution using labels for example.