Unity Swipe Input Creation

 Hello everyone, in this post I will explain how to create Swipe Input in Unity, a method commonly used in mobile games, especially endless runner games.

using UnityEngine;

// ReSharper disable once CheckNamespace
namespace UrhobA.Inputs.Swipe
{
public class MouseMovement : MonoBehaviour
{
    private Vector2
        _startedPos, // We take the position where the mouse is first clicked
        _secondPos, // We take the position where the mouse is released
        _currentPos; // We get the current mouse position
    
    private Direction.Direction _returnedValue; // We keep the value to be returned
    public Direction.Direction GetValue() // Function to access the current position
    {
        return _returnedValue;
    }
    public void ResetValue() // Function to reset the current position
    {
        _returnedValue = Direction.Direction.None;
    }
    private void Update()
    {
        if (Input.GetMouseButtonDown(0))
            _startedPos = Input.mousePosition; // When the mouse is first clicked, we get its position

        if (!Input.GetMouseButtonUp(0)) return; // As long as the mouse button is not released, we return.
        _secondPos = Input.mousePosition; // We get the position at the moment the mouse is released
        _currentPos = new Vector2(_secondPos.x - _startedPos.x, _secondPos.y - _startedPos.y); // We make the necessary calculations and assign as the current mouse position
        _currentPos.Normalize(); // We normalize it.

		// Down below, we're sending the mouse positions.
        if (_currentPos.y > 0 && _currentPos.x > -0.5f && _currentPos.x < .5f)
            _returnedValue = Direction.Direction.Up;

        if (_currentPos.y < 0 && _currentPos.x > -0.5f && _currentPos.x < .5f)
            _returnedValue = Direction.Direction.Down;

        if (_currentPos.x < 0 && _currentPos.y > -0.5f && _currentPos.y < .5f)
            _returnedValue = Direction.Direction.Left;

        if (_currentPos.x > 0 && _currentPos.y > -0.5f && _currentPos.y < .5f)
            _returnedValue = Direction.Direction.Right;

    }
    
    
}
}
// ReSharper disable once CheckNamespace
namespace UrhobA.Inputs.Swipe.Direction
{
	// We are creating an enum value to send our directions
    public enum Direction
    {
        None,
        Left,
        Right,
        Up,
        Down
    }
}

We use our code as follows.

MouseMovement _mouseMovement;

awake(){

    _mouseMovement = new MouseMovement(); // It is better to add it using add component here.

}

switch(_mouseMovement.GetValue()){

    case Direction.Left:

        // Slide left codes..

        // If you don't want it to keep happening forever

        _mouseMovement.ResetValue();

        // Enter the command.

    break;

    case Direction.Right:

        // Slide right codes..

    break;

}

As I mentioned above, you can use it in your project.

You can use the link below to go to the GitHub page of the code.

UrhobA Swipe Movement -> GitHub