Unity developers introduced the DontDestroyOnLoad method to preserve all objects that inherit from Object, Component or GameObject. Luckily, there’s another way of preserving these between the scenes, although it comes with a little caveat. That’s because Unity will destroy any of these objects whenever you load a new scene even when you declare them as static. However, you cannot use it for anything that inherits from Object, Component and MonoBehaviour. The below listing is an example of a script that has been placed under the project’s ‘Assets’:ĭebug.Log('The current score is now: ' + MySharedData.GetCurrentScore()) Īt this point it is worth mentioning that this solution works only with built-in primitives, such as int, bool, string, float, double. declare all the variables and methods you want to use across the scripts in your game as public static.DO NOT make this class inherit from MonoBehaviour.make sure that you do not import any of the UnityEngine libraries and make the class static.

inside the ‘Assets’ panel create a script called MySharedData.cs or similar.However, for a small project it can be quite a handy solution that doesn’t need too much elaboration.

This can be perceived as a very crude way of storing and accessing the data across your scenes. It is entirely possible to write a public static class and access all it’s primitive components and member functions from any script in your scenes. This one should be pretty obvious, but I noticed that some developers are not aware of it. I’ll try my best to structure this article to act as a reference point whenever you find yourself stuck with your project. In this section I will focus on the main commonly used solutions for data persistence in Unity games. Let me describe all the possible solutions that are commonly known to the best of my knowledge. Each of them comes with pros and cons and it depends on what kind of data you want to preserve. There are multiple ways of dealing with this problem. Similarly, the same principle applies whenever you start / stop the game. The way Unity deals with any kind of Object, especially Component or GameObject type instances, is that it destroys them every time you transit from one scene to another. However, that is not the case and you will still be faced with losing the data. One may think that this can be easily solved by marking any of these objects as static. All scripts and components that are attached to GameObject inside a Unity project are destroyed each time you load a scene. In order to tackle the problem, let’s first define it.

The ScriptableObject data persistent object.

The PlayerPrefs data persistence concept.

In this tutorial I’ll describe the most important ones. All of them have pros and cons and it is entirely up to developer to decide which one is the best for the project. Luckily, both C# and Unity provide few solutions to this problem. That goes without saying that even the smallest game may require persistent data, which you can always access from various scripts inside your system’s architecture. Save states, game configuration settings or characters statistics – these are just the examples of data you would ideally want to somehow store on a game’s platform for later use. It may occur at the stage in your development when you have to maintain information between loading different scenes or even different game sessions. See for more information.', DiagnosticId='SYSLIB0011', UrlFormat='.', de.Key, de.While you work on your project in Unity, sooner or later you will come across a problem of data persistence. Virtual void Serialize(System::IO::Stream ^ serializationStream, System::Object ^ graph) [System.Obsolete('BinaryFormatter serialization is obsolete and should not be used. Serializes the object, or graph of objects with the specified top (root), to the given stream.

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