Rodrigo Pérez

Implementing unsuported iOS capabilities in Unity

I needed to add a capability to the tvOS version of an app that wasn’t on the ProjectCapabilityManager class, so I digged around a bit and realized the capabilities file was a plist so I could use the PlistDocument class to edit it. My solution was really simple but as I couldn’t find anything online I decided to write a post about it. This is implemented on my asset Unity Autobuilder, an open…

For the game I worked on last GGJ (here) I needed to collect data from the microphone and analyze it real time. I googled around and could find something that helped me after hours of looking (here), so I decided to write a little something to make it easier to find (and add a little something).

First things first, you’ll need to record whatever is coming from the microphone. For that we have the Microphone class. We’ll need a device from Microphone.devices (we’ll just use the first one for this example) and we’ll use Microphone.Start() to save the recording on an AudioClip.

AudioClip _clipRecord = new AudioClip(); public void InitMic() { if (_device == null) _device = Microphone.devices[0]; _clipRecord = Microphone.Start(_device, true, 999, 44100); }

In order to get the data, you can use the function GetData in AudioClip. You need to specify the length and the offset, to find the offset, Microphone.GetPosition will get you the position in the recording for the device, you need to substract the length plus one.

float[] waveData = new float[_sampleWindow]; int micPosition = Microphone.GetPosition(_device) - (_sampleWindow + 1); if (micPosition < 0) return 0; _clipRecord.GetData(waveData, micPosition);

In order to stop the recording while the window isn't focused, you can use OnEnable, OnDisable, OnDestroy and OnApplicationFocus

bool _isInitialized; // start mic when scene starts void OnEnable() { InitMic(); _isInitialized = true; } //stop mic when loading a new level or quit application void OnDisable() { StopMicrophone(); } void OnDestroy() { StopMicrophone(); } // make sure the mic gets started & stopped when application gets focused void OnApplicationFocus(bool focus) { if (focus) { //Debug.Log("Focus"); if (!_isInitialized) { //Debug.Log("Init Mic"); InitMic(); _isInitialized = true; } } if (!focus) { //Debug.Log("Pause"); StopMicrophone(); //Debug.Log("Stop Mic"); _isInitialized = false; } } void StopMicrophone() { Microphone.End(_device); }

I used this script persistently between scenes and I found sometimes it would stop working when a new scene was loaded. It was in the latest hours of the jam so I tried stuff until something worked, and deactivating and activating again seemed to work (though it was probably just stopping and resuming the mic), so I added a callback to SceneManager.sceneLoaded to start a coroutine that would deactivate and reactivate the GameObject

private void Awake() { if (_inst != null && _inst != this) { Destroy(gameObject); return; } _inst = this; DontDestroyOnLoad(gameObject); SceneManager.sceneLoaded += OnSceneLoad; } void OnSceneLoad(Scene aScene, LoadSceneMode aMode) { StartCoroutine(TurnOffAndOn()); } IEnumerator TurnOffAndOn() { gameObject.SetActive(false); yield return null; gameObject.SetActive(true); }

You can use the data, for instance, to get a frequency range thourgh a FFT or to analyze it’s amplitude. I haven’t tried much so I’ll write again if I keep working on it.

Here's the full script I used to get a level of "loudness" on the microphone (I edited it a bit so it would work off the bat)

I made a big update for the aseprite importer (check it out on the asset store). I wanted to do this since I released the first version, now you can do everything from the file’s inspector and animations auto import when changes are made to the original ase file.

This is a view of the inspector for ase files:

You can still use the original menu to import animations and now you have the option to chose a target directory, but after it is imported, the configuration will be saved in the ase file and the auto import will take care of changes modifying the original files even if you move the around.

Back in November 2015 I wrote about a simple script to import animations from aseprite. Now I present to you a complete asset that will import everything you need directly from the .ase file and even create a prefab with the animation in it.

As I tweeted earlier today, I wrote a little script that allows me to install an Android build on a device from the Unity editor.

Last tweet gave me an idea to put an option to install to #Android device inside #Unity3D. Will post it soon. #gamedev #indiedev #androiddev

— Rho (@freakrho) 6 de marzo de 2017

In the past Global Game Jam we experimented a bit with waves which gave me the idea to try something we wanted to do on Rumpus using shaders.

We needed a “waving flag” effect, it was really simple to do applying a simple wave displacement to the renderer. I made it so you can adjust frequency, amplitude and velocity.

Basic knowledge of Unity shaders is required to understand this.