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Cryville.Input

Project #A013 [cin] Cryville.Input is a realtime input library under .NET Framework 3.5.

This project was created on 2023-04-30. It has been open-sourced since 2023-05-05.

Building

There is no release at the moment, so you need to build the project by yourself.

Building the core library

1. Clone Cryville.Common and Cryville.Input into the same folder.
2. Open Cryville.Common.sln in the Cryville.Common repository and build the solution.
3. Open Cryville.Input.sln in the Cryville.Input repository, switch to the Release configuration, and build the project Cryville.Input.
4. The output libraries and documentations should now be in Cryville.Input/bin/Release.

Setting up the core library in Unity

Simply copy all the files in Cryville.Input/bin/Release to the Assets/Plugins folder in your unity project.

Setting up Unity built-in input in Unity

Simply copy all the contents in Cryville.Input.Unity.Builtin to the Assets/Plugins/Cryville.Input.Unity.Builtin folder in your unity project.

Setting up Android native input in Unity

1. Copy all the contents in Cryville.Input.Unity.Android to the Assets/Plugins/Cryville.Input.Unity.Android folder in your unity project.
2. Make sure you have Android NDK installed. Open a command prompt in Cryville.Input.Unity.Android.Native (as the working directory) and run ndk-build in your Android NDK.
3. Copy the two folders in Cryville.Input.Unity.Android.Native/libs to the Assets/Plugins/Android folder in your unity project.

Usage

The simplest way to use the library is to construct a SimpleInputConsumer and check new input events periodically, typically every game tick. You need to construct an InputManager before constructing a SimpleInputConsumer, and before that, you need to call InputManager.HandlerRegistries.Add() for every handler types you want to use. See the following example:

InputManager manager;
SimpleInputConsumer consumer;
Action<InputEvent> d_eventcb;
void Start() {
	InputManager.HandlerRegistries.Add(typeof(AndroidTouchHandler), new object[0]); // Register AndroidTouchHandler
	manager = new InputManager();
	consumer = new SimpleInputConsumer(manager);
	consumer.Activate();
	d_eventcb = HandleInputEvent;
}
void Update() {
	consumer.EnumerateEvents(d_eventcb);
}
void HandleInputEvent(InputEvent ev) {
	// Handle input events here
}

Supported input devices

Unity built-in input

• Unity GUI input (via Event in UnityEngine.IMGUIModule)
• Unity mouse input
• Unity touch input

Android native input (via UnityEngine.AndroidJNIModule or Xamarin)

• Android sensor
  • Accelerometer
  • Accelerometer Uncalibrated
  • Ambient Temperature
  • Geomagnetic Rotation Vector
  • Gravity
  • Gyroscope
  • Gyroscope Uncalibrated
  • Heart Beat
  • Heart Rate
  • Light
  • Linear Acceleration
  • Magnetic Field
  • Magnetic Field Uncalibrated
  • Pressure
  • Proximity
  • Relative Humidity
  • Rotation Vector
  • Step Counter
• Android touch

Windows native input

• Windows key (WM_KEY*)
• Windows mouse (WM_MOUSE*)
• Windows pointer (WM_POINTER*)
• Windows touch (WM_TOUCH)

FAQ

An error occurred while running ndk-build: Expected two items in TARGET_TOOLCHAIN_LIST.

Go into the .mk file shown in the error message and modify the line ifneq ($(words $(TARGET_TOOLCHAIN_LIST)), 1) to ifneq ($(words $(TARGET_TOOLCHAIN_LIST)), 2).

What coordinate system do the input handlers use?

The coordinate system an input handler uses depends on its underlying API. Use ReferenceCue.InverseTransform(InputFrame) to transform a received frame to a universal reference. If the device has a boundary, use ReferenceCue.InverseTransform(InputFrame, InputVector) instead and specify the size in the second parameter.