Describes the phase of 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