Class TrackedObject

Provides common Property Variant functionality for a Unity object. You can inherit from this class to create custom object trackers. This shows how to create a UnityEngine.Localization.PropertyVariants.TrackedObjects to support the component.

[Serializable]
[DisplayName("Audio Source")]
[CustomTrackedObject(typeof(AudioSource), false)]
public class TrackedAudioSource : TrackedObject
{
public override AsyncOperationHandle ApplyLocale(Locale variantLocale, Locale defaultLocale)
{
    var audioClipProperty = GetTrackedProperty("m_audioClip");
    if (audioClipProperty == null)
        return default;

    // Check if the Asset is stored in an Asset Table
    if (audioClipProperty is LocalizedAssetProperty localizedAssetProperty &&
        localizedAssetProperty.LocalizedObject is LocalizedAudioClip localizedAudioClip)
    {
        localizedAudioClip.LocaleOverride = variantLocale;
        var loadHandle = localizedAudioClip.LoadAssetAsync();
        if (loadHandle.IsDone)
            AudioClipLoaded(loadHandle);
        else
        {
            loadHandle.Completed += AudioClipLoaded;
            return loadHandle;
        }
    }
    // Check if the Asset is stored locally
    else if (audioClipProperty is UnityObjectProperty localAssetProperty)
    {
        if (localAssetProperty.GetValue(variantLocale.Identifier, defaultLocale.Identifier, out var clip))
            SetAudioClip(clip as AudioClip);
    }

    return default;
}

void AudioClipLoaded(AsyncOperationHandle<AudioClip> loadHandle)
{
    SetAudioClip(loadHandle.Result);
}

void SetAudioClip(AudioClip clip)
{
    var source = (AudioSource)Target;
    source.Stop();
    source.clip = clip;
    if (clip != null)
        source.Play();
}

public override bool CanTrackProperty(string propertyPath)
{
    // We only care about the Audio clip
    return propertyPath == "m_audioClip";
}
}

Inheritance

Object

TrackedObject

JsonSerializerTrackedObject

TrackedTransform

Namespace: UnityEngine.Localization.PropertyVariants.TrackedObjects

Syntax

public abstract class TrackedObject : ISerializationCallbackReceiver

Properties

Target

The target that the variants will be applied to.

Declaration

public Object Target { get; set; }

Property Value

Type	Description
Object

TrackedProperties

The tracked properties for this object.

Declaration

public IList<ITrackedProperty> TrackedProperties { get; }

Property Value

Type	Description
IList<ITrackedProperty>

Methods

AddTrackedProperty(ITrackedProperty)

Add a tracked property for this object.

Declaration

public virtual void AddTrackedProperty(ITrackedProperty trackedProperty)

Parameters

Type	Name	Description
ITrackedProperty	trackedProperty

AddTrackedProperty<T>(String)

Create and add a tracked property for this object.

Declaration

public T AddTrackedProperty<T>(string propertyPath)
    where T : ITrackedProperty, new()

Parameters

Type	Name	Description
String	propertyPath

Returns

Type	Description
T

Type Parameters

Name	Description
T

ApplyLocale(Locale, Locale)

Apply the TrackedProperties for variantLocale. If a value does not exist for this locale then the value for defaultLocale is used as a fallback.

Declaration

public abstract AsyncOperationHandle ApplyLocale(Locale variantLocale, Locale defaultLocale)

Parameters

Type	Name	Description
Locale	variantLocale	The chosen variant to apply to Target.
Locale	defaultLocale	The fallback Locale to use when a value does not exist for this variant.

Returns

Type	Description
AsyncOperationHandle

CanTrackProperty(String)

Can be used to reject certain properties.

Declaration

public virtual bool CanTrackProperty(string propertyPath)

Parameters

Type	Name	Description
String	propertyPath

Returns

Type	Description
Boolean

CreateCustomTrackedProperty(String)

Declaration

public virtual ITrackedProperty CreateCustomTrackedProperty(string propertyPath)

Parameters

Type	Name	Description
String	propertyPath

Returns

Type	Description
ITrackedProperty

GetTrackedProperty(String)

Return the tracked property for the property path.

Declaration

public virtual ITrackedProperty GetTrackedProperty(string propertyPath)

Parameters

Type	Name	Description
String	propertyPath	The serialized property path.

Returns

Type	Description
ITrackedProperty

GetTrackedProperty<T>(String, Boolean)

Return the tracked property for the property path.

Declaration

public T GetTrackedProperty<T>(string propertyPath, bool create = true)
    where T : ITrackedProperty, new()

Parameters

Type	Name	Description
String	propertyPath	The serialized property path.
Boolean	create	Specify whether to create a property if no existing property is found.

Returns

Type	Description
T

Type Parameters

Name	Description
T

PostApplyTrackedProperties()

Called when the variants have been applied to Target.

Declaration

protected virtual void PostApplyTrackedProperties()