What are best practices for using [Git][1] source control with Unity 3D, particularly in dealing with the binary nature of Unity 3D projects? Please describe the workflow, what paths would be included in .gitignore, what settings should be set in Unity and/or the project, and any other special things that should be noted.

Note: I realize that using the Asset Server is the Unity-recommended way, but I would like to use Git for a variety of reasons. Please no answers that state or argue that I should just use the Asset Server. The Asset Server really isn&#39;t an option for me.

  [1]: http://en.wikipedia.org/wiki/Git_%28software%29


How to use Git for Unity3D source control?

When I want to edit C# Unity scripts, they open in Visual Studio. It is supposed to provide auto complete for all Unity related code, but it doesn&#39;t work.

Here you can see the missing functionality:

![Video of missing autocomplete feature][3] 

As seen, the [`transform`][2] object does not open the autocomplete menu.


&gt; Unity version: 5.5.2f1   
&gt; Visual studio 2015  
&gt; Visual Studio Tools for Unity is installed


  [1]: https://www.youtube.com/watch?v=UA257uZkMzc
  [2]: https://docs.unity3d.com/ScriptReference/Transform.html
  [3]: https://i.stack.imgur.com/UbgaT.gif

Unity Scripts edited in Visual studio don&#39;t provide autocomplete

What are the steps necessary to prepare a Unity project for committing to a git repository eg. github? I don&#39;t want to store unnecessary files (specially temp files and avoid binary formats as much as possible). 

How to prepare a Unity project for git?

I understand the principle of coroutines. I know how to get the standard `StartCoroutine` / `yield return` pattern to work in C# in Unity, e.g. invoke a method  returning `IEnumerator` via `StartCoroutine` and in that method do something, do `yield return new WaitForSeconds(1);` to wait a second, then do something else.

My question is: what&#39;s really going on behind the scenes? What does `StartCoroutine` really do? What `IEnumerator` is `WaitForSeconds` returning? How does `StartCoroutine` return control to the &quot;something else&quot; part of the called method? How does all this interact with Unity&#39;s concurrency model (where lots of things are going on at the same time without use of coroutines)?

How does StartCoroutine / yield return pattern really work in Unity?

I have a list of items send from a PHP file to unity using `WWW`.

The `WWW.text` looks like:

    [
        {
            &quot;playerId&quot;: &quot;1&quot;,
            &quot;playerLoc&quot;: &quot;Powai&quot;
        },
        {
            &quot;playerId&quot;: &quot;2&quot;,
            &quot;playerLoc&quot;: &quot;Andheri&quot;
        },
        {
            &quot;playerId&quot;: &quot;3&quot;,
            &quot;playerLoc&quot;: &quot;Churchgate&quot;
        }
    ]

Where I trim the extra `[]` from the `string`. When I try to parse it using `Boomlagoon.JSON`, only the first object is retrieved. I found out that I have to `deserialize()` the list and have imported MiniJSON. 

But I am confused how to `deserialize()` this list. I want to loop through every JSON object and retrieve data. How can I do this in Unity using C#?

The class I am using is 

    public class player
    {
        public string playerId { get; set; }
        public string playerLoc { get; set; }
        public string playerNick { get; set; }
    }

After trimming the `[]` I am able to parse the json using MiniJSON. But it is returning only the first `KeyValuePair`. 

    IDictionary&lt;string, object&gt; players = Json.Deserialize(serviceData) as IDictionary&lt;string, object&gt;;

    foreach (KeyValuePair&lt;string, object&gt; kvp in players)
    {
        Debug.Log(string.Format(&quot;Key = {0}, Value = {1}&quot;, kvp.Key, kvp.Value));
    }


Thanks!

Serialize and Deserialize Json and Json Array in Unity

What is the difference between the `Update` and `FixedUpdate` methods, and when should these methods be used?

what is the difference between Update &amp; FixedUpdate in Unity?

How to detect UI object on Canvas on Touch in android?

For example, I have a canvas that have 5 objects such as `Image`, `RawImage`, `Buttons`, `InputField` and so on.

When I touch on Button UI object Then do something. Each button do different process when clicked depending.

The code will look like:


    private void Update()
    {
        if (Input.touches.Length &lt;= 0) return;
        
        for (int i = 0; i &lt; Input.touchCount; i++)
        {
            if (Button1.touch)
                if (Input.GetTouch(i).phase == TouchPhase.Began)
                    login();
            else if (Button2.touch &amp;&amp; Input.GetTouch(i).phase == TouchPhase.Began)
                LogOut();
        }
    }



So how to do it?


Second:
How to detect Gameobject get touch? Is it same with that above or not?


How to detect click/touch events on UI and GameObjects

I&#39;m using SmartFoxServer API on Unity3d. It was working fine before I recovered my MacBook, but now gives a connection error as below:

    Http error creating http connection: System.Net.Sockets.SocketException: Connection refused
      at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP, Boolean requireSocketPolicy) [0x00000] in &lt;filename unknown&gt;:0 
      at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x00000] in &lt;filename unknown&gt;:0 
      at System.Net.Sockets.TcpClient.Connect (System.Net.IPEndPoint remote_end_point) [0x00000] in &lt;filename unknown&gt;:0 
      at System.Net.Sockets.TcpClient.Connect (System.Net.IPAddress[] ipAddresses, Int32 port) [0x00000] in &lt;filename unknown&gt;:0 
    UnityEngine.Debug:Log(Object)
    SFS2X_Connect:OnConnection(BaseEvent) (at Assets/SFS2X_Connect.cs:2758)
    Sfs2X.Core.EventDispatcher:DispatchEvent(BaseEvent)
    Sfs2X.SmartFox:ProcessEvents()
    SFS2X_Connect:Update() (at Assets/SFS2X_Connect.cs:2764)


Here is the connection code:

    using UnityEngine;
    using UnityEngine.Networking;
    using UnityEngine.UI;
    using System.Collections;
    using Sfs2X;
    using Sfs2X.Core;
    
        public class SFS2X_Connect : MonoBehaviour {
        
            public string Host = &quot;127.0.0.1&quot;;
            
        	[Tooltip(&quot;TCP port listened by the SmartFoxServer 2X instance; used for regular socket connection in all builds except WebGL&quot;)]
        	public int TcpPort = 9933;
        
        	[Tooltip(&quot;WebSocket port listened by the SmartFoxServer 2X instance; used for in WebGL build only&quot;)]
        	public int WSPort = 8888;
        
        	[Tooltip(&quot;Name of the SmartFoxServer 2X Zone to join&quot;)]
        	public string Zone = &quot;examplezone&quot;;
        
        
        SmartFox sfs;
        
              sfs = new SmartFox ();
        
              sfs.ThreadSafeMode = false;
        
             sfs.AddEventListener (SFSEvent.CONNECTION, OnConnection);
        
            ConfigData cfg = new ConfigData();
        
        	cfg.Host = Host;
        	cfg.Port = TcpPort;
        	cfg.Zone = Zone;
        
        	sfs.Connect (cfg);
        }

I&#39;ve removed and re-imported `smartfox.dll` but still encounter the same error.

What can I do?

Note: I create a new project and imported SnartFoxServer. It&#39;s connected to the server.



How to resolve SmartFoxServer connection error in unity

Error:

    Invalid command android
    UnityEditor.HostView:OnGUI()

CommandInvokationFailure: 

    Unable to list target platforms. Please make sure the android sdk path is correct. See the Console for more details. 
    C:/Program Files/Java/jdk1.8.0_121\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir=&quot;C:/Users/great/AppData/Local/Android/Sdk\tools&quot; -Dfile.encoding=UTF8 -jar &quot;C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar&quot; -
    
    stderr[
    Error:Invalid command android
    ]
    stdout[
    
    ]
    exit code: 64
    UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
    UnityEditor.Android.AndroidSDKTools.RunCommandInternal (System.String javaExe, System.String sdkToolsDir, System.String[] sdkToolCommand, Int32 memoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
    UnityEditor.Android.AndroidSDKTools.RunCommandSafe (System.String javaExe, System.String sdkToolsDir, System.String[] sdkToolCommand, Int32 memoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
    UnityEditor.HostView:OnGUI()

Error building Player: 

    CommandInvokationFailure: Unable to list target platforms. Please make sure the android sdk path is correct. See the Console for more details. 
    C:/Program Files/Java/jdk1.8.0_121\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir=&quot;C:/Users/great/AppData/Local/Android/Sdk\tools&quot; -Dfile.encoding=UTF8 -jar &quot;C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar&quot; -
    
    stderr[
    Error:Invalid command android
    ]
    stdout[
    
    ]
    exit code: 64

Screenshot:

![screenshot][1]


  [1]: https://i.stack.imgur.com/stCyA.jpg

not finding android sdk (Unity)

What language does one need to use when programming with Unity? Or is it an API for many languages?

I read through the docs and I guess I missed the point on the language used.

It says it has iOS deployment, would this still allow the programmer to code in objective C?

Is Unity an sdk which can be used for many platforms or how does it work? It mentions deploy the same code on multiple platforms.

What Language is Used To Develop Using Unity

I am trying to use this code for NET.reflector using Reflexil. I am trying to replace code with this:

    if(Input.GetKeyDown(KeyCode.Keypad5)) { 
    int i = 0; 
    Character localPlayer = PlayerClient.GetLocalPlayer().controllable.GetComponent&lt;Character&gt;(); 
    foreach (UnityEngine.Object obj2 in UnityEngine.Object.FindObjectsOfType(typeof(LootableObject))) 
    { 
        if (obj2 != null) 
        { 
            i++; 
            LootableObject loot = (LootableObject) obj2; 
            Debug.Log(&quot;Loot &quot;+i+&quot;: &quot;+loot.transform.position.ToString()); 
            CCMotor ccmotor = localPlayer.ccmotor; 
            if(ccmotor != null &amp;&amp; tpPos1 != Vector3.zero) { 
                ccmotor.Teleport(loot.transform.position); 
                Notice.Popup(&quot;&quot;, &quot;Teleported to &quot;+loot.name, 1.5f); 
            } 
            break; 
        } 
    } 
}


But it gives me an error when I try to compile:

    Line: 1 Column: 1 Error Number: CS0116	Error Message: &quot;A namespace does not directly contain members such as fields or methods&quot;


This is Unity code I think. I am not that experienced. Could anyone fix this for me? Or tell me what to do? Thanks!


&quot;A namespace cannot directly contain members such as fields or methods&quot;

I see that we can initialize Variable in `Awake()` or `Start()` and  `Awake()` will be called before `Start()`.
       
When should we initialize in `Awake` and `Start` to have the best performance?

Awake() and Start()

How can I put  a sleep function between the `TextUI.text = ....`, to wait 3 seconds between each phrase?

    public Text GuessUI;
	public Text TextUI;

    [...truncated...]

    TextUI.text = &quot;Welcome to Number Wizard!&quot;;
    TextUI.text = (&quot;The highest number you can pick is &quot; + max);
	TextUI.text = (&quot;The lowest number you can pick is &quot; + min);

I already tried various things but none have worked, such as this:

    TextUI.text = &quot;Welcome to Number Wizard!&quot;;
    yield WaitForSeconds (3);
    TextUI.text = (&quot;The highest number you can pick is &quot; + max);
    yield WaitForSeconds (3);
	TextUI.text = (&quot;The lowest number you can pick is &quot; + min);


In bash, it would be:

    echo &quot;Welcome to Number Wizard!&quot;
    sleep 3
    echo &quot;The highest number you can pick is 1000&quot;
    sleep 3
    .....

but I can&#39;t figure out how to do this in Unity with C#

How to make the script wait/sleep in a simple way in unity

Unity creates and deletes meta files for *folders* inside the Asset folder.

That can create an annoying situation when using version control (that you can skip and go to the questions): someone creates a folder of files that will be ignored but forget to ignore the folder&#39;s meta file. Unity creates the meta file and this person adds the meta to version control. Another person gets the changesets and, since they don&#39;t have the folder, _their_ Unity deletes the meta file and they remove the meta file from version control. Not everyone in the team understand this, so the process is perpetuated in a loop from hell.

Surprisingly this happens all the time. So, two questions:

1. Is it important to version folder meta files? 
2. Is there a way to automatically ignore folder meta files - particularly on git or mercurial?

Ignoring folder meta files on version control

How can I pass score value from one scene to another?

I&#39;ve tried the following:

**Scene one:**

    void Start () {
        score = 0;
        updateScoreView ();
        StartCoroutine (DelayLoadlevel(20));
    }
    
    public void updateScoreView(){
        score_text.text = &quot;The Score: &quot;+ score;
    }
    	
    public void AddNewScore(int NewscoreValue){
        score = score + NewscoreValue;
        updateScoreView ();
    }
        
    IEnumerator DelayLoadlevel(float seconds){        
        yield return new WaitForSeconds(10);
        secondsLeft = seconds;
        loadingStart = true;
        do {        
            yield return new WaitForSeconds(1);
        } while(--secondsLeft &gt;0);
        
        // here I should store my last score before move to level two
        PlayerPrefs.SetInt (&quot;player_score&quot;, score);
        Application.LoadLevel (2);
    }


**Scene two:**

    public Text score_text;
    private int old_score;
    
    // Use this for initialization
    void Start () {    
    	old_score = PlayerPrefs.GetInt (&quot;player_score&quot;);
    	score_text.text = &quot;new score&quot; + old_score.ToString ();    	
    }

but nothing displayed on screen, and there&#39;s no error.

Is this the correct way to pass data ?

I am using Unity 5 free edition, develop game for Gear VR (meaning the game will run in android devices).

Any suggestion? 

How to pass data (and references) between scenes in Unity

I have a problem with autocompletion in VS 2017 Community.

Previously I had VS 2017 Enterprise from school, but the key expired so I moved to Community. 

Before, everything works great, but now it doesn&#39;t work at all.

I found a solution on Stack Overflow [here](https://stackoverflow.com/questions/42597501/autocompletion-not-working-in-visual-studio) but it doesn&#39;t work, so found another solution at GitHub [here](https://github.com/dotnet/roslyn/wiki/Diagnosing-Project-System-Build-Errors).

And I got this:

&gt; Build FAILED.
&gt;
&gt; C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(1601,5): error MSB4036: 
The &quot;GetReferenceNearestTargetFrameworkTask&quot; task was not found. Check the following: 
1.) The name of the task in the project file is the same as the name of the task class. 
2.) The task class is &quot;public&quot; and implements the Microsoft.Build.Framework.ITask interface. 
3.) The task is correctly declared with &lt;UsingTask&gt; in the project file, or in the *.tasks files located in the 
&quot;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin&quot; directory.
    0 Warning(s)
    1 Error(s)
&gt;
&gt; Time Elapsed 00:00:00.11

Do you know what to do next?

The &quot;GetReferenceNearestTargetFrameworkTask&quot; task was not found

I&#39;m using Unity 4.3.3 for my game. I&#39;m making a game for Android and iOS devices. Since I&#39;m pretty new to unity, I can&#39;t seem to find a way to work with different screen resolution.
I&#39;m using c# for my scripts. 

I want my game to run full screen. I&#39;ve tested it on iPad 2 and it runs perfect but for iPhone 4 the sides are clipped and for iPhone 5 they are clipped even more. What is the solution? Which option should I choose under Player Settings &gt; iOS &gt; OtherSettings &gt; Target Resolution?

How to Work With Different Screen Resolutions

I have a very tiny Objective-C library built for iOS and I want to export it to Unity. I understand the basic process of writing a csharp wrapper that marshals all the invocations to native library, but I completely have no idea where to start. Could anyone please explain step-by-step how to create a unity package with my library so I could also distribute it to other developers.

Unity3d documentation is pretty brief and does not explain anything.

Thanks.

How to build Unity3d Plugin for iOS

I&#39;m making simple game manager. I have a script, which will be accessible from all scenes in the game. And I need to check values of its variables after loading new scene. But my code runs only once after starting the simulation while an object with this script exists in all scenes. What is wrong? Why doesn&#39;t it work after loading a new scene?



Unity game manager. Script works only one time

I&#39;m currently working on adding sound effects to a game, and although my current code is working fine, I&#39;m looking for a way to simplify it.
Basically, each object in the game has a string value indicating its material (ie. &quot;wood&quot;, &quot;metal&quot;, etc.), and when two objects collide, a sound effect is played based on the combination. The code essentially looks like this:

    if( (matA == &quot;metal&quot; &amp;&amp; matB == &quot;wood&quot;) || (matA == &quot;wood&quot; &amp;&amp; matB == &quot;metal&quot;) )
	{
		//play sound for metal-wood collision
	}

But I&#39;m wondering if there&#39;s a way to simplify the if-statement to something like this:

    if( one of the materials is wood &amp;&amp; one of the materials is metal )
	{
		//play sound for metal-wood collision
	}

Is it possible to simplify an if-statement that checks for a combination?

I&#39;ve been trying to upload .abb to the google play console. When I upload it, it gives me this error:

This release is not compliant with the Google Play 64-bit requirement

The following APKs or App Bundles are available to 64-bit devices, but they only have 32-bit native code: 2.

From 1. August 2019 all releases must be compliant with the Google Play 64-bit requirement.

Include 64-bit and 32-bit native code in your app. Use the Android App Bundle publishing format to automatically ensure that each device architecture receives only the native code it needs. This avoids increasing the overall size of your app.

I tried to export an 64-bit version but I couldnt do it.

Unity Export Android 64-bit

I want to change the name of a Unity project to something else such that Unity Editor shows the new name at the top or when I open a script using Visual Studio, it shows the new name at the top of VS. How to do that?

Does changing the project name change the game&#39;s name (the name that appears on top left corner of the game window)?

Does changing project name change the name of the game&#39;s executable file?


How to Rename a Unity Project?

I created the following structure:

    ├── Assets
    ├── Scenes
    ├── Scripts
    │   └── MyExample.cs
    ├── Tests
    │   ├── MyExampleTest.cs
    │   └── Tests.asmdef

Now, when I click on Run All, in the Test Runner window, in Unity, I have the following error:

    The type or namespace name `MyExample&#39; could not be found. Are you missing an assembly reference?

In Visual Studio I have two projects:
 
- Assembly-CSharp (containing src)
 
- Tests (containing Tests)

I added Assembly-CSharp as a reference in the second project. Visual Studio is able to build the solution with no errors.

Does anyone know how to properly setup a UnitTest regression for a Unity project?


This is Tests.asmdef

    {
        &quot;name&quot;: &quot;Tests&quot;,
        &quot;optionalUnityReferences&quot;: [
            &quot;TestAssemblies&quot;
        ]
    }

MyExampleTest.cs

    using UnityEngine;
    using UnityEngine.TestTools;
    using NUnit.Framework;
    using System.Collections;
    using abc;
    
    public class MyExampleTest{
    
        [Test]
        public void NewTestScriptSimplePasses() {
            // Use the Assert class to test conditions.
        }
    
        [UnityTest]
        public IEnumerator NewTestScriptWithEnumeratorPasses() {
            abc.Example m;
            Assert.That(false);
            yield return null;
        }
    }

MyExample.cs

    namespace abc
    {
        public class Example
        {
    
           
        }
    }

How to set up unit tests in Unity and fix missing assembly reference error?

We are having the same issue found [here][1], [here][2], [here][3] and [here][4]

Basically we upgraded to xcode 6.1 and our build are getting the &quot;ResourceRules.plist: cannot read resources&quot; error.

We have a Jenkins server that does our ios builds for us.  We are using the [Xcode plugin][5] on Jenkins to do the actual build and signing.  Any thoughts on how we can make this change without manually opening xcode and doing this solution found on the other answers:

&gt; Click on your project &gt; Targets &gt; Select your target &gt; Build Settings &gt;

&gt; Code Signing Resource Rules Path

&gt;and add :

&gt;$(SDKROOT)/ResourceRules.plist

I&#39;m very new to Xcode and iOS build in general.  I have found the project.pbxproj file inside the Unity-iPhone.xcodeproj file.  It looks like this contains the build settings under the **/* Begin XCBuildConfiguration section */** section it lists what looks like similar build properties foundin Xcode, however I do not see anything like &quot;Code Signing Resource Rules Path&quot;.

Does anyone have experience manually editing this file?  Is that a bad idea in general?

Thanks


  [1]: https://stackoverflow.com/questions/26497863/xcode-6-1-error-while-building-ipa-using-testflight-app/26499526#26499526
  [2]: https://stackoverflow.com/questions/26500558/packageapplication-stopped-working-with-os-x-10-10-yosemite-today
  [3]: https://stackoverflow.com/questions/7138525/xcode-sharing-app-packageapplication-failed-with-exit-code-1
  [4]: https://devforums.apple.com/message/1052189#1052189
  [5]: https://wiki.jenkins-ci.org/display/JENKINS/Xcode+Plugin

How do we manually fix &quot;ResourceRules.plist: cannot read resources&quot; error after xcode 6.1 upgrade?

I need to create an android application which consists of parts written on Unity3d (animation and so on) and on AndroidSDK (by androidSDK I mean few activities written in java, manifest and resources)

In fact I already have those parts (At least mocks are ready=)) And I can&#39;t figure out how to communicate between them.

I&#39;ve read a lot of articles about unity3d android integration (mostly about things called &quot;plugins&quot;) and failed to understand how this staff works=( The main thing I understood (everyone exept official refs wrote about that) is that documentation about plugins is very poor... =)

The only way to communicate which I can understand is to make an intent (broadcast) from unity3d script (using AndroidJavaClass and AndroidJavaObject) so my activity (written in java) can handle it. But something tells me it&#39;s not the best solution...


What I read about the problem is that I need to use JNI (which is java native interface - WHY?!? - why do I need to use native code?)

Do I need to create some middle-level code on java which purpose is to communicate with my java activity, compile it using AndroidNDK and include into my Unity3d project as a plugin? How can I write that middle layer than? Do I need to use UnityPlayer instead of &quot;Activity&quot; as a base class and why?

All Unity3d Solutions on Gang of Coders

Total of 25 Unity3d Solutions