Easy Save - The Complete Save Data & Serialization Asset

Hi Mr. Jingle,

Could you send me the code you are using to moodkie.com/contact so I can have a go at troubleshooting the error.

Thanks,
Joel

 

Hi there,

There are a couple of errors with your load script. Firstly, it should be LoadArray<Transform>. Secondly, you need to use the self-assigning functions to load Transforms in Easy Save 2. We're looking at including the loading of Transforms into an array like ES1, but because you cannot have a Transform without a GameObject to attach it to, it often confuses people.

 

Thank you for answer, but I dont understand ES2 at all
Now I have:

Code (csharp):

1. grass_prefab = ES2.LoadArray <Transform> ("Save.txt?tag=grass", Transform);

But I have some more errors, Iam doing something very wrong

 

The second parameter for the LoadArray function should be an array containing the Transforms you want to apply the saved data to, and you should remove the "grass_prefab =" part completely.

If you can wait until Monday, I'll release an update which will allow you to use the code:

Code (csharp):

1. grass_prefab = ES2.LoadArray <Transform> ("Save.txt?tag=grass");

You're not the first person who has found this confusing, so I'm sure this update will be welcomed

 

Hi there,
I just bought ES2 yesterday and am already glad I did, looks both powerful and easy to use.
I have a very basic problem though, chances are it's a very obvious mistake from me but I'm not seing what is wrong. This code works fine:
int SaveTest1 = 42;
int SaveTest2 = 666;

ES2.Save(SaveTest1, "SaveFile.test?savelocation=file&tag=Test1");
ES2.Save(SaveTest2, "SaveFile.test?savelocation=file&tag=Test2");
int LoadTest1 = ES2.Load<int>("SaveFile.test?savelocation=file&tag=Test1");
int LoadTest2 = ES2.Load<int>("SaveFile.test?savelocation=file&tag=Test2");

But this one, which should do exactly the same to my understanding does not:
int SaveTest1 = 42;
int SaveTest2 = 666;

ES2Settings settings = new ES2Settings();
settings.saveLocation = ES2.SaveLocation.File;
settings.tag = "Test1";
ES2.Save(SaveTest1, "SaveFile.test", settings);
settings.tag = "Test2";
ES2.Save(SaveTest2, "SaveFile.test", settings);

settings.tag = "Test1";
int LoadTest1 = ES2.Load<int>("SaveFile.test", settings);
settings.tag = "Test2";
int LoadTest2 = ES2.Load<int>("SaveFile.test", settings);
In the second example both LoadTest1 and LoadTest2 are set at 666.

It's not blocking me since I will just use the first method, but I would be interested to understand what I am doing wrong in the second one.
Thanks!

 

Hi Olivier,

Don't worry, it's not your mistake! There was a small bug where ES2 wasn't giving ES2Settings priority over the parameters, and thus was giving the default tag priority over the ES2Settings tag.

This bug will be fixed in our update on Monday, so you'll be able to use whichever method you want

All the best,
Joel

 

I've just submitted the update to allow for loading of Components/Transforms without using the self-assigning functions and it should be available today or Monday. Because Unity doesn't let you assign directly to a GameObject's Transform, you will have to do something like this:

Code (csharp):

1. // Load our Transforms
2. Transform[] loadedTransforms = ES2.LoadArray <Transform> ("Save.txt?tag=grass");
3. // Assign the elements of these loaded Transforms to our own Transforms.
4. // For each Transform in grass_prefab
5. for(int i=0; i<grass_prefab.Length; i++)
6. {
7.      grass_prefab[i].position = loadedTransforms[i].position;
8.      grass_prefab[i].rotation = loadedTransforms[i].rotation;
9.      grass_prefab[i].localScale = loadedTransforms[i].localScale;
10.      grass_prefab[i].tag = loadedTransforms[i].tag;
11. }
12.  

All the best,
Joel

 

Hello.

I've parchased ES2,and really appreciate this awesome work.

I would like to ask about save settings.

I use ES2 with settings below on Unity Android.

settings.saveLocation = ES2.SaveLocation.PlayerPrefs;

When uninstall my app , saved data still remains.
Though,This is not I intended.

Is there a way to delete all the saved data when uninstalling?
Or Is there to know the saved location to delete manually.

Thanks in advance.

 

I got a crash error when running encrypt() in iOS.
i added the try-catch block to the encrypt function, found out the following log when pdb.GetBytes(32) is called:

Code (csharp):

1.  
2. icall.c:1331:
3. System.NullReferenceException: A null value was found where an object instance was required.
4.   at System.Security.Cryptography.HMAC.Initialize () [0x00000] in <filename unknown>:0
5.   at System.Security.Cryptography.HMAC.HashCore (System.Byte[] rgb, Int32 ib, Int32 cb) [0x00000] in <filename unknown>:0
6.   at System.Security.Cryptography.HashAlgorithm.ComputeHash (System.Byte[] buffer, Int32 offset, Int32 count) [0x00000] in <filename unknown>:0
7.   at System.Security.Cryptography.HashAlgorithm.ComputeHash (System.Byte[] buffer) [0x00000] in <filename unknown>:0
8.   at System.Security.Cryptography.Rfc2898DeriveBytes.F (System.Byte[] s, Int32 c, Int32 i) [0x00000] in <filename unknown>:0
9.   at System.Security.Cryptography.Rfc2898DeriveBytes.GetBytes (Int32 cb) [0x00000] in <filename unknown>:0
10.   at EasySave.encrypt (System.Byte[] param, System.String password) [0x00019] in xxxxxxxxxxxxxxx/Assets/Plugins/Easy Save/Easy Save 1/EasySave.cs:3502

it works in the editor. it also works if stripping level of iOS setting is "disabled".
if iOS Stripping level is not "disabled", it will crash even i include the following link.xml to the project:

Code (csharp):

1. <linker>
2.     <assembly fullname="mscorlib">
3.         <type fullname="System.Security.Cryptography" preseve="all"/>
4.         <type fullname="System.Security.Cryptography.CipherMode" preseve="all"/>
5.         <type fullname="System.Security.Cryptography.CryptoConfig" preseve="all"/>
6.         <type fullname="System.Security.Cryptography.CryptoStream" preseve="all"/>
7.         <type fullname="System.Security.Cryptography.CryptoStreamMode" preseve="all"/>
8.         <type fullname="System.Security.Cryptography.CryptographicException" preseve="all"/>
9.         <type fullname="System.Security.Cryptography.CryptographicUnexpectedOperationException" preseve="all"/>
10.         <type fullname="System.Security.Cryptography.CspParameters" preseve="all"/>
11.         <type fullname="System.Security.Cryptography.DeriveBytes" preseve="all"/>
12.         <type fullname="System.Security.Cryptography.HashAlgorithm" preseve="all"/>
13.         <type fullname="System.Security.Cryptography.ICryptoTransform" preseve="all"/>
14.         <type fullname="System.Security.Cryptography.KeySizes" preseve="all"/>
15.         <type fullname="System.Security.Cryptography.PaddingMode" preseve="all"/>
16.         <type fullname="System.Security.Cryptography.PasswordDeriveBytes" preseve="all"/>
17.         <type fullname="System.Security.Cryptography.Rijndael" preseve="all"/>
18.         <type fullname="System.Security.Cryptography.SHA1" preseve="all"/>
19.         <type fullname="System.Security.Cryptography.SHA1CryptoServiceProvider" preseve="all"/>
20.         <type fullname="System.Security.Cryptography.SymmetricAlgorithm" preseve="all"/>
21.     </assembly>
22. </linker>

Did i miss anything? Thanks.

 

Hi Kays,
From what I've read, PlayerPrefs behaves differently on different phones. This thread says that PlayerPrefs are stored in Shared Preferences. It might be worth contacting Unity about this as we have no control over how PlayerPrefs work.
All the best,
Joel

 

Hi akwok,

I'm afraid that enabling stripping removes the libraries required for Easy Save 1 encryption. We've tried creating link.xml files ourselves using the specification presented by Unity but so far have had no luck at getting it to work either.

Easy Save 2 uses an external library for encryption, so if you need to use stripping, it'll be worth giving that a try. I've not currently got access to a copy of Unity iOS Pro so I can't try this out myself at the moment.

Regards,
Joel

 

Thanks for the answer. Is Easy Save 2 stable enough to be used?

 

Yes, it's very stable (with thanks to all of the people who have been helping with testing over the past few months).

All we're working on now is improving the documentation, and then it will be out of beta. After that we'll be working on adding more of the features that everyone has suggested.

 

Nice to know! If i code ES2.Save("test", "save.xml"); Where will the save.xml be saved in the iphone?

 

By default it will be saved to PlayerPrefs, so it's not technically saved to a file but saved in the registry. If saving using 'File' as the save location, it'll be saved at the path specified by Application.persistentDataPath.

If you put Debug.Log(Application.persistentDataPath); in your code and build it to your iPhone, it'll output the save location for your device to the console in XCode.

 

Joel, I am using ES2, iOS, stripping bytecode, it still gives error:

Code (csharp):

1. System.NullReferenceException: A null value was found where an object instance was required.
2.   at System.Security.Cryptography.PasswordDeriveBytes.Reset () [0x00000] in <filename unknown>:0
3.   at System.Security.Cryptography.PasswordDeriveBytes.GetBytes (Int32 cb) [0x00000] in <filename unknown>:0
4.   at Elixis.AESEncryptor.Decrypt (System.Byte[] data) [0x00000] in <filename unknown>:0
5.   at MoodkieReader.GetDecryptedBytes () [0x00000] in <filename unknown>:0
6.   at MoodkieReader.ReadEncrypted[String] () [0x00000] in <filename unknown>:0
7.   at MoodkieReader.Read[String] () [0x00000] in <filename unknown>:0
8.   at MoodkieLoad.Load[String] (.ES2Settings settings) [0x00000] in <filename unknown>:0
9.   at ES2.Load[String] (System.String identifier, .ES2Settings settings) [0x00000] in <filename unknown>:0
10.   at XMLSerializer.Deserialize[SerializableDictionary`2] (System.String fileName) [0x00000] in <filename unknown>:0

any clue? Thanks~

 

Hi Akwok,

Could you send me the code you are using at moodkie.com/contact. From this error it looks like you are using a null value as a parameter somewhere.

 

Sent your the email, thanks.

 

My code is:

Code (csharp):

1.  
2. function Start () {
3.     var loadPath : String = "ObjectName";
4.  
5.     ES2.Save(gameObject.name, loadPath);
6.     if(ES2.Exists(loadPath)) {
7.         gameObject.name = ES2.Load.<String>(loadPath);
8.     }
9. }
10.  

I get errors using the ES2 in webplayer.

What am I doing wrong?
(I'm sorry. This document has been translated in Google Translate. . .)

 

Hi kamakura,

The code you have posted is working fine at our end. Please make sure you have updated Easy Save and are using the latest version of the Unity engine.

If this does not fix your problems, please let us know what settings you have changed and if you have modified Easy Save in any way. It might be easier for you to email me directly at moodkie.com/contact. If your project is below 10mb when compressed, you might also want to send this to me if you're happy to do so.

Joel

 

Also try deleting Easy Save and reinstalling it from the Asset Store.

 

Hi there,
just a suggestion, but it would be nice for you to have a forum on your website to talk about everything EasySave. Doing so in a single forum thread feels a bit awkward.

 

Hi,

Does this work with unity 3.4?

 

Hi OlivierT. Sorry for the late reply; I didn't get an email saying that there were new posts in this thread.

We've used dedicated forums for other products in the past, but we felt the time spent maintaining it was better spent on other things. Maybe when we have more time we will look into this.

 

Hi nicunity,

I can see no reason why not, though I cannot guarantee it. Future updates of Easy Save will certainly not work as they will support saving Audio data, which if I remember rightly was only accessible in 3.5 onwards.

 

No problem, I was not mentionning it for a reason of reply time. Rather because I had some ideas/suggestions I felt could be intersesting for EasySave, but it feels unconfortable to begin and follow a discussion about that in the middle of this thread (at least to me )

 

Please help!
EasySave2 is good plugs. I'm a beginner to use it.

I tried to save a Array to file, but it's failed. this is my code ( javascript code ):

var pointArr : Vector3[];
pointArr = new Vector3[4];
pointArr[0] = Vector3(0,0,6);
pointArr[1] = Vector3(6,0,6);
pointArr[2] = Vector3(0,0,0);
pointArr[3] = Vector3(6,0,0);
ES2.Save ( pointArr, "myDataFile.txt"); // this is error highlight in unity

Console error:
ES2TypeNotSupportedException: Easy Save Type Not Supported Exception: Easy Save does not support saving this type. If you are trying to load a collection such as a Dictionary, use the collection classes (for example, LoadDictionary<>()).
MoodkieWriter.Write (System.Object param)

 

Hi kenshako,

We've tried your code at our end and we are not getting any errors. Please ensure that you are using the latest version of Unity and Easy Save. Also ensure that there are no errors earlier in your code as this can cause later pieces of code to fail. For reference, here is the code we used to test that it is working:

Code (csharp):

1. #pragma strict
2.  
3. function Start ()
4. {
5.     var pointArr : Vector3[];
6.     pointArr = new Vector3[4];
7.     pointArr[0] = Vector3(0,0,6);
8.     pointArr[1] = Vector3(6,0,6);
9.     pointArr[2] = Vector3(0,0,0);
10.     pointArr[3] = Vector3(6,0,0);
11.     ES2.Save ( pointArr, "myDataFile.txt");
12.    
13.     // This loads our saved data and outputs it to console.
14.     var newPointArr : Vector3[] = ES2.LoadArray.<Vector3>("myDataFile.txt");
15.     for(var i : int =0; i<newPointArr.Length; i++)
16.         Debug.Log(pointArr[i]);
17. }

 

Hi,

Can someone tell me where is easysave saving by default on a MAC ?
Also, joeltebbett, the contact form on the moodkie page doens't work.
What's your email ?

 

Hi BigB,
We're looking at getting the contact form fixed today.

By default Easy Save saves to PlayerPrefs, which is technically a registry.
If saving to File, the default path is /Users/YourUserName/Library/Caches/Moodkie/Easy Save 2.

All the best,
Joel

 

that's right, it seem that my ES2 version made a mistake, that code has passed in my testing.
Thank you so much!

 

If there is a class Unit.cs that is inherited from MonoBehaviour, it contains some public properties, such as hp, move, damage etc. Is it possible to have something like ES2.Save( unit , "save.txt" ); and ES2.Load<Unit>( "save.txt", unit ); ??

 

Hi yuewah,

You can create your own functions to save and load your own classes. The best way to do this would be to add Save Load functions to the Unit class. Here's an example I've created for you:

Code (csharp):

1. public class Unit : MonoBehaviour
2. {
3.     public int id; // This allows us to uniquely identify this Unit.
4.     public string path = "myFile.txt"; // Where we want to save our data.
5.    
6.     public int hp;
7.     public int move;
8.     public int damage;
9.    
10.     // This handles the saving of an item.
11.     public void Save()
12.     {
13.         string pathWithID = path+"?tag="+id; // Create our path.
14.        
15.         // Now we save our variables.
16.         ES2.Save(hp, pathWithID+"hp");
17.         ES2.Save(hp, pathWithID+"move");
18.         ES2.Save(hp, pathWithID+"damage");
19.     }
20.    
21.     // This handles the loading of an item.
22.     public void Load()
23.     {
24.         string pathWithID = path+"?tag="+id; // Create our path.
25.        
26.         // If there's no data to load, do nothing.
27.         if(!ES2.Exists(pathWithID+"hp"))
28.             return;
29.        
30.         // Now we load our variables.
31.         hp = ES2.Load<int>(pathWithID+"hp");
32.         move = ES2.Load<int>(pathWithID+"move");
33.         damage = ES2.Load<int>(pathWithID+"damage");
34.     }
35. }

 

Dictionary<,> is support but it cannot contains duplicate Key, So can you support List< KeyValuePair < string, string > > ??

 

We've put support for List<KeyValuePair<TKey, TValue>> on our To Do list.

 

ES2.Save(go1.name, "save.txt");
ES2.Save(go2.name, "save.txt");
ES2.Save(go3.name, "save.txt");

Is it have 3 write access to file ? if yes, it is possible to batch write to file ?

 

You can save multiple things to one file using tags. For example:

Code (csharp):

1. ES2.Save(go1.name, "save.txt?tag=nameOne");
2. ES2.Save(go2.name, "save.txt?tag=nameTwo");
3. ES2.Save(go3.name, "save.txt?tag=nameThree");

And load using:

Code (csharp):

1. string nameOne = ES2.Load<string>("save.txt?tag=nameOne");
2. string nameTwo = ES2.Load<string>("save.txt?tag=nameTwo");
3. string nameThree = ES2.Load<string>("save.txt?tag=nameThree");

 

sorry, what I concern is the performance of the read / write operation. As I have many Save operations to do.

 

The overhead actually isn't very high. However, if you want to save a bit of performance then put all of the objects into an array and save that.

 

apart from performance, I think it will be easy to have corrupted data file. How to avoid this ?

e.g.
ES2.Save(go1.name, "save.txt?tag=nameOne"); // succeed
ES2.Save(go2.name, "save.txt?tag=nameTwo"); // succeed
ES2.Save(go3.name, "save.txt?tag=nameThree"); // fail

go1.name = ES2.Load<string>("save.txt?tag=nameOne"); // succeed
go2.name = ES2.Load<string>("save.txt?tag=nameTwo"); // succeed
go3.name = ES2.Load<string>("save.txt?tag=nameThree"); // fail

 

You may use a try/catch block to catch a number of exceptions. A list of these exceptions can be found at http://www.moodkie.com/easysave/Exceptions.php. However, we have not had a single case of data corruption in any version of Easy Save; we estimate that we've made in excess of 250,000 Save calls with Easy Save in the past 6 months alone.

 

is it possible to save as human readable text format, e.g. XML or JSON ?

 

Has anyone tried using this in conjunction with uScript?

Also, I'm curious whether Easy Save supports GameObject variables or lists of GameObjects.

 

This is on our To Do list, but we've not currently had much demand for it.

 

You cannot save entire GameObjects as such. However, you can save individual components and assign them to GameObjects. For a list of supported types, please see http://www.moodkie.com/easysave/SupportedTypes.php.

 

Hello ,

is it possible to use your plug in for a tower defense games ?

 

Hi kbomb,

Any game should be possible with Easy Save, but how easy it is to implement depends on how you have implemented your game. The best way to find this out is to check out the Coding Reference and Beginners Guide to see if it provides the functionality you need.

Regards,
Joel

 

Is the basic concept of EasySave that if you want to store, say, playerHealth (an int), and then you also have a variable called player name, each of these has to have it's own separate file? So there can't be one large file containing lots of different data types?

I was really hoping for a solution that could help keep the save player data clean and organized when dealing with large amounts of data that must be saved. But either way this is still very good and definitely easy to use once some Documentation reading and experimenting has been done.

In the future it would be awesome if you could add a way to make some sort of batch file or something similar that contains keys for identifying different parts of the file for saving to and loading from so a bunch of single files aren't needed.

 

Hi disastercake,

Luckily we already support this functionality with the use of tags, which is a type of parameter. For example, we could achieve what you want by doing the following:

Code (csharp):

1. ES2.Save(playerHealth, "myFile.txt?tag=playerHealth");
2. ES2.Save(playerName, "myFile.txt?tag=playerName");

and then to load:

Code (csharp):

1. if(ES2.Exists("myFile.txt"))
2.    playerHealth = ES2.Load<int>("myFile.txt?tag=playerHealth");
3.    playerName = ES2.Load<string>("myFile.txt?tag=playerName");

I'm working on an FAQ section at the moment which will make Easy Save much easier to learn. For the time being, you can find more information on parameters HERE.

All the best,
Joel

 

Very cool! =D

Thank you for the quick response. I will be testing this out later.

So if you append to a tag you add an extra field to it that you can pull from, or does it just combine the 2 values?