//save all of our games data in one go.
public void SaveJson()
{
//get the loaded scenes from the scene manager.
string[] loaded = CustomSceneManager.GetLoadedScenes();
if (loaded.Length == 0) //if we have no scenes loaded, just set some random ones for testing purposes.
{
loaded = new string[] { "hello", "world", "12345Scene" };
}
//set up some fake player data to save.
PlayerSaveData data = new PlayerSaveData()
{
loadedScenes = loaded,
x = 1,
y = 2,
z = 5
};
//get the JSON string, looks something like this:
// {
// "loadedScenes": [
// "hello",
// "world",
// "12345Scene"
// ],
// "x": 1.0,
// "y": 2.0,
// "z": 5.0
// }
string save = JsonUtility.ToJson(data, true);
//get the file path. this is at CurrentUser/AppData/LocalLow/Company/Product/saveFile.sf
//Company and Product are set by us in the Project Settings / Player.
string filePath = Path.Combine(Application.persistentDataPath, "saveFile.sf");
//Open the File: Create a new one
FileStream stream = File.Open(filePath, FileMode.Create);
//We need a byte array to actually write anything to our FileStream, we get this from standard UTF8 encoding
//? What is UTF8? https://en.wikipedia.org/wiki/UTF-8
//! A lot of modern websites use UTF-8 Encoding since it has support for a pretty wide variety of characters :)
byte[] buffer = Encoding.UTF8.GetBytes(save);
//Write the entire buffer array to the stream.
stream.Write(buffer, 0, buffer.Length);
//Flush the stream. This is essential to "dumping" all the data from the RAM that C# uses into the storage on the harddrive.
stream.Flush();
//Dispose the stream, this can be simplified when utilizing a using block: https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/using-statement
stream.Dispose();
}