Create a custom build script
To create a custom build script, you can create a class that extends the BuildScriptBase class, or implements the IDataBuilder interface.
You can then add the script to the Build and Play Mode Scripts section of the Addressable Asset Settings Inspector.
Implementing build scripts
You can override the ClearCachedData and CanBuildData<T> methods in BuildScriptBase and IDataBuilder to define how to create an Addressables build. If you're extending the BuildScriptBase class, you can also override the BuildDataImplementation method to setup or build content.
You must define a custom script as either a Build Script or a Play Mode Script with the CanBuildData<T> method. Build scripts can only build data of the type AddressablesPlayerBuildResult, so you must implement it like the following example:
public override bool CanBuildData<T>()
{
return typeof(T).IsAssignableFrom(typeof(AddressablesPlayerBuildResult));
}
When you implement a script in this way, it appears in the Build menu of the Addressables Groups window.
Play Mode Scripts can also only build data of the type AddressablesPlayModeBuildResult. The following is an example of how to implement this method:
public override bool CanBuildData<T>()
{
return typeof(T).IsAssignableFrom(typeof(AddressablesPlayModeBuildResult));
}
When you implement a script in this way, it appears in the Play Mode Scripts menu of the Addressables Groups window.
For further examples, refer to the Custom build and Play mode scripts sample.
Extend the default build script
You can extend and override the default build script BuildScriptPackedMode to treat specific groups or types of assets differently. If the group or asset the build script processes is one that you want to treat differently, you can run your own code. Otherwise, you can call the base class version of the method to use the default algorithm.
Save the content state
If you support remote content distribution and update your content between player releases, you must record the state of your Addressables groups at the time of the build. Recording the state lets you perform a differential build using the Update a Previous Build script.
For more information, refer to the implementation of BuildScriptPackedMode and ContentUpdateScript.