Script for Swipe detection, uses Playmaker to Fire Events

ControllerSwipe.cs

using UnityEngine;
using System.Collections;
using HutongGames.PlayMaker;

public class ControllerSwipe : MonoBehaviour {
    public float comfortZone = 70.0f;
    public float minSwipeDist = 14.0f;
    public float maxSwipeTime = 0.5f;
    public float fastSwipeReaction = 15f;

    public FsmEvent right;
    public FsmEvent left;
    public FsmEvent down;
    public FsmEvent up;

    private float swipeTimeStart;
    private Vector2 swipePosStart;
    private bool couldBeSwipe;
    private bool swipeDone;

    public float acceleromterZone = 0.5f;
    private Vector3 initAccelerometer;

    public enum SwipeDirection {
        None,
        Up,
        Down,
        Right,
        Left
    }

    public SwipeDirection swipeType = SwipeDirection.None;

    void Update()
    {
        UpdateSwipeAction();
    }

    private void UpdateSwipeAction()
    {
        if (Input.touchCount > 0)
        {
            Touch touch = Input.touches[0];
            switch (touch.phase)
            {
                case TouchPhase.Began:
                    swipeType = SwipeDirection.None;

                    couldBeSwipe = true;
                    swipeDone = false;

                    swipePosStart = touch.position;
                    swipeTimeStart = Time.time;
                    break;

                case TouchPhase.Moved:
                    var offset = touch.position - swipePosStart;
                    switch (swipeType)
                    {
                        case SwipeDirection.None:
                            var isVertical = Mathf.Abs(offset.y) > Mathf.Abs(offset.x);

                            if (offset.x < -minSwipeDist && !isVertical)
                                swipeType = SwipeDirection.Left;
                            else if (offset.x > minSwipeDist && !isVertical)
                                swipeType = SwipeDirection.Right;
                            else if (offset.y > minSwipeDist && isVertical)
                                swipeType = SwipeDirection.Up;
                            else if (offset.y < -minSwipeDist && isVertical)
                                swipeType = SwipeDirection.Down;
                            break;
                        case SwipeDirection.Left:
                        case SwipeDirection.Right:
                            if (Mathf.Abs(offset.y) > comfortZone)
                                couldBeSwipe = false;
                            break;
                        case SwipeDirection.Up:
                        case SwipeDirection.Down:
                            if (Mathf.Abs(offset.x) > comfortZone)
                                couldBeSwipe = false;
                            break;

                    }

                    if (offset.magnitude > fastSwipeReaction)
                        DoSwipeAction();

                    break;

                case TouchPhase.Ended:
                    DoSwipeAction();
                    break;
            }
        }
    }

    private void DoSwipeAction()
    {
        if (couldBeSwipe && !swipeDone && Time.time - swipeTimeStart < maxSwipeTime)
        {
            switch (swipeType)
            {
                case SwipeDirection.Left: PlayMakerFSM.BroadcastEvent(left.Name); break;
                case SwipeDirection.Right: PlayMakerFSM.BroadcastEvent(right.Name); break;
                case SwipeDirection.Down: PlayMakerFSM.BroadcastEvent(down.Name); break;
                case SwipeDirection.Up: PlayMakerFSM.BroadcastEvent(up.Name); break;
            }
            swipeDone = true;
        }
    }
}