static bool IsNativeObjectAlive(UnityEngine.Object o)
{
if (o.GetCachedPtr() != IntPtr.Zero)
{
return(true);
}
//Ressurection of assets is complicated.
//For almost all cases, if you have a c# wrapper for an asset like a material,
//if the material gets moved, or deleted, and later placed back, the persistentmanager
//will ensure it will come back with the same instanceid.
//in this case, we want the old c# wrapper to still "work".
//we only support this behaviour in the editor, even though there
//are some cases in the player where this could happen too. (when unloading things from assetbundles)
//supporting this makes all operator== slow though, so we decided to not support it in the player.
//
//we have an exception for assets that "are" a c# object, like a MonoBehaviour in a prefab, and a ScriptableObject.
//in this case, the asset "is" the c# object, and you cannot actually pretend
//the old wrapper points to the new c# object. this is why we make an exception in the operator==
//for this case. If we had a c# wrapper to a persistent monobehaviour, and that one gets
//destroyed, and placed back with the same instanceID, we still will say that the old
//c# object is null.
if (o is MonoBehaviour || o is ScriptableObject)
{
return(false);
}
return(DoesObjectWithInstanceIDExist(o.GetInstanceID()));
}
private static bool IsNativeObjectAlive(UnityEngine.Object o)
{
if (o.GetCachedPtr() != IntPtr.Zero)
{
return(true);
}
if ((o is MonoBehaviour) || (o is ScriptableObject))
{
return(false);
}
return(DoesObjectWithInstanceIDExist(o.GetInstanceID()));
}
private static bool IsNativeObjectAlive(UnityEngine.Object o)
{
return((o.GetCachedPtr() != IntPtr.Zero) || ((!(o is MonoBehaviour) && !(o is ScriptableObject)) && DoesObjectWithInstanceIDExist(o.GetInstanceID())));
}
