Anh Pham Blog

I made this blog for sharing about technology and programming.

[apatu]

[C#] Regex sample

         using System.Text.RegularExpressions;         public static void ProcessFile(string path)          {             Regex linkParser = new Regex("\\_\\d{4}(\\_|\\.)", RegexOptions.Compiled | RegexOptions.IgnoreCase);             foreach (Match m in linkParser.Matches(path))             {                 Debug.Log(m.Value);               }         }

[apatu]

Can't update MacOS or Can't download the software because of a network problem

Solution:

1. Open Terminal 2. cd /var/folders/zz/ 3. sudo chown -R _softwareupdate:_softwareupdate zyxvpxvq6csfxvn_n00000s0000068 4. sudo chown -R _networkd:_networkd zyxvpxvq6csfxvn_n000003000000r

Work like a charm!

[apatu]

[Unity] BuildPipeline.BuildPlayer misnames .pbxuser file

If you start Unity in a terminal like this: USER=user open /Applications/Unity/Unity.app the file generated will be: user.pbxuser (it overrides your Unix user name)

if everyone who works on the project does this you can append your iOS build because everyone has the same naming of the pbxuser file.

[apatu]

[Unity] [C#] No-Garbage-Collector rules

You hate the garbage collector which is cause of 'suddenly fps drop'? Follow these rules:

Shouldn’t:

- Shouldn’t use .name every frame

- Shouldn’t use .ToString() every frame

- Shouldn’t use boxing / unboxing

- Shouldn’t use StartCoroutines

- Shouldn’t use foreach

- Shouldn’t use GetComponentsInChildren

- Shouldn’t use ParticleSystem.Play(), Clear()

Should:

- Use ParticleSystem.Play(false), Clear(false)

- Cache when use Delegate

- Use struck if possible. If use class, try to 're-use' instead of ‘new’.

- Use StringBuilder to concat strings

- Use game object pool

[apatu]

[Unity] Smooth rotate

In Update() method // Smoothly rotates towards target var targetPoint = targetPosition.transform.position;

var targetRotation = Quaternion.LookRotation(targetPoint - transform.position, Vector3.up); transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, Time.deltaTime * 2.0f);

[apatu]

[Unity] [QCAR] Crash on init with unity 4.5.4 or higher

How to fix:

You can manually edit the Info.plist file in your Xcode project generated by Unity and add this key:

<key>UIInterfaceOrientation</key>

<string>UIInterfaceOrientationPortrait</string>

[apatu]

[Unity] [Animator] SetTrigger work not fine?

If you want to SetTrigger an animator state "A" with trigger parameter "a", you should wait until the current state is not "A". If you do not, sometimes your trigger will be off at the time the state "A" finishes.

For example: IEnumerator Test() {             int A = Animator.StringToHash("A");             while (animator.GetCurrentAnimatorStateInfo(0).nameHash == A)             {                 yield return new WaitForEndOfFrame();             }             animator.SetTrigger("a"); }

[apatu]

[Unity] Optimizing Mobile Games (Specially for terrain and models)

http://indiedevspot.azurewebsites.net/2014/03/12/optimizing-mobile-games-in-unity/

Very nice topic!

[apatu]

[Unity] [iOS Build] FileNotFoundException: [path]/<username>.pbxuser

You get this error when you try to build iOS append to an existing build folder which get from an other Mac.

Solution: Go to the existing build folder, find <other-username>.pbxuser, rename it to <your-username>.pbxuser

[apatu]

[Unity] Package Import overwrite problem

The .meta file of each scene contains a unique id which is used for matching scene (overwrite or not) when you import packages.

Delete the .meta file of the scene if you want to make it new completely. Unity generates a new id for it automatically.

[apatu]

[Unity] Get Unity Sprite Runtime

Solution 1:  - Sprite.Create(Texture2D,Rect,Vector2,float)

Solution 2:  - Move your texture to your 'Resources' folder. - Get sprite array by Resources.LoadAll<Sprite>('texture name');

[apatu]

[Unity] [Android] [Plugin] Can't find class even if included .jar file

You can drop pre-compiled Android library projects into the  Assets/Plugins/Android folder.

Pre-compiled means all .java files must have been compiled into jar files located in either the bin/ or the libs/ folder of the project. 

AndroidManifest.xml from these folders will get automatically merged with the main manifest file when the project is built.

[apatu]

[Unity] [Prime31] [iOS 5] Symbol not found: _UICollectionElementKindSectionFooter

Etcetera

The promptForMultiplePhotos method requires iOS 6+! If you are still building for iOS 5 you will need to set UIKit.framework to be weak linked (as in this screenshot) and make sure to not call promptForMultiplePhotos unless the device is iOS 6+!

[apatu]

[Mono] Mono Compatibility

You want to check your scripts you wrote are compatibility with Micro mscorlib or not? Check here:

http://docs.unity3d.com/412/Documentation/ScriptReference/MonoCompatibility.html

[apatu]

[Sound] [SE] Some audacity tutorials I learned today

Louder and Softer with Audacity https://www.youtube.com/watch?v=Sjsd0MzCk-M

Audacity Tutorial - Lich King Voice https://www.youtube.com/watch?v=ythJI6Bq88Q

How to Make Your Voice Sound Demonic in Audacity https://www.youtube.com/watch?v=kwAWOyNCmz4

[apatu]

[Unity] Find children recursively by name

This way does not find all children recursively:

foreach (Transform child in transform)  {

  Debug.Log(child.name);

}

If you want to find all children, you must:

Transform[] children = transform.GetComponentsInChildren<Transform> (true);

foreach (Transform child in children)  {

  Debug.Log(child.name);

}

[apatu]

[C#] [Unity] [Reflection] InvokeMember & GetField

Examples using Refection: 1. SetProperty example:

uipanel.GetType ().InvokeMember ("baseClipRegion", 

BindingFlags.Instance | BindingFlags.Public | BindingFlags.SetProperty, 

System.Type.DefaultBinder, uipanel, new object[]{new Vector4 (0, 0, width, height)});

2. Access public-property example:

uianchor.GetType ().GetField ("runOnlyOnce").SetValue (uianchor, false);