Describes the phase of the touch.

The touch phase refers to the action the finger has taken on the most recent frame update. Since a touch is tracked over its "lifetime" by the device, the start and end of a touch and movements in between can be reported on the frames they occur. The phase property can be used as the basis of a "switch' statement or as part of a more sophisitcated state handling system.

var startPos: Vector2;
var direction: Vector2;
var directionChosen: boolean;

function Update () {
	// Track a single touch as a direction control.
	if (Input.touchCount > 0) {
		var touch = Input.GetTouch(0);
		
		// Handle finger movements based on touch phase.
		switch (touch.phase) {
			// Record initial touch position.
			case TouchPhase.Began:
				startPos = touch.position;
				directionChosen = false;
				break;
			
			// Determine direction by comparing the current touch
			// position with the initial one.
			case TouchPhase.Moved:
				direction = touch.position - startPos;
				break;
			
			// Report that a direction has been chosen when the finger is lifted.
			case TouchPhase.Ended:
				directionChosen = true;
				break;
		}
	}
	
	if (directionChosen) {
		// Something that uses the chosen direction...
	}
}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public Vector2 startPos;
    public Vector2 direction;
    public bool directionChosen;
    void Update() {
        if (Input.touchCount > 0) {
            Touch touch = Input.GetTouch(0);
touch.phaseTouchPhase.Began            startPos = touch.position;
            directionChosen = false;
TouchPhase.Moved            direction = touch.position - startPos;
TouchPhase.Ended            directionChosen = true;
        }
        if (directionChosen) {
        }
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public startPos as Vector2

	public direction as Vector2

	public directionChosen as bool

	def Update() as void:
		if Input.touchCount > 0:
			touch as Touch = Input.GetTouch(0)
			UnityScript.Macros.Switch touch.phase:
				case TouchPhase.Began:
					startPos = touch.position
					directionChosen = false
					break 
				case TouchPhase.Moved:
					direction = (touch.position - startPos)
					break 
				case TouchPhase.Ended:
					directionChosen = true
					break 
		if directionChosen:
			pass