Game Development
The new Input System
Briefly learn the differences between the old and new Input System.
Legacy vs New Input System
The Input class (legacy input manager) used for years in Unity is quick for simple prototypes, but lacks proper multi-device, gamepad, and key re-binding support. To solve these shortcomings, Unity developed the modern and modular Input System package. The new system is added to the project via the Package Manager.
// The new system is installed via Package Manager:
// com.unity.inputsystem
Input Actions
At the heart of the new Input System lies Input Actions. Instead of hardcoding key names (e.g. W key), you define an abstract action (e.g. "Move" or "Jump"). This makes it possible to bind keyboards, gamepads, or touch controls to the same action without touching the code.
// Action-based approach:
// "Jump" action can bind to both Space and Gamepad button South.
Exercise Input Action State Check
If the simulated InputAction object's IsTriggered() method is true, print Debug.Log("Eylem tetiklendi");.
Show example solution
using System;
public class InputAction
{
public string Name { get; set; }
public bool IsTriggered() => true;
}
public static class Debug
{
public static void Log(object message) => Console.WriteLine(message);
}
public class Program
{
public static void Main()
{
InputAction jumpAction = new InputAction { Name = "Jump" };
if (jumpAction.IsTriggered())
{
Debug.Log("Eylem tetiklendi");
}
}
}
Test yourself
-
Which tool is used to include Unity's modern Input System package into a project?
- Console Window
- Package Manager
- Hierarchy Window
- Build Settings
Show answer
Package Manager — Because the new Input System is an independent package, it is installed from Window > Package Manager.
-
New Package Name
string paketAdi = "com.unity.____";
Show answer
string paketAdi = "com.unity.inputsystem";
-
System Comparison
- Klasik Input
- Built-in system using GetKey / GetAxis
- Package Manager
- Where the new Input System is installed
- Input Action
- Structure binding keys to actions
- Re-binding
- Changing key bindings in-game
Next lesson: Movement vector
