Swipe movement limitation

Question

Hi guys, i'd like to move my player with rigidbody2d by swipe left and right, and i'd like to move it into a specific point, i saw the api mathf.clamp to create the movement limitations, but i don't know how to create multiple limitations

I post a gif to make you understand better:

alt text

 using UnityEngine;
 using System.Collections;
 
 public class Gestures : MonoBehaviour {
 
 
 
     public Rigidbody2D playerRigibody2D;
     public Transform playerTransform;
     public float speed;
     public Vector2 movementRight;
     public Vector2 movementLeft;
 
 
 
     private GameController gamecontroller;
 
     void Start ()
     {
 
         GameObject GameControllerObject = GameObject.FindWithTag ("GameController");
                 if (GameControllerObject != null) {
             
                         gamecontroller = GameControllerObject.GetComponent <GameController> ();
                 }
                 
 
                 if (gamecontroller == null) {
                         Debug.Log ("Cannot find 'GameController' script ");
                 }
             
         }
 
     void OnEnable(){
         EasyTouch.On_SwipeEnd += On_SwipeEnd;
     }
 
     void OnDestroy(){
         EasyTouch.On_SwipeEnd -= On_SwipeEnd;
 
     }
         
     void On_SwipeEnd (Gesture gesture) 
     {
 
         switch (gesture.swipe) {
         case EasyTouch.SwipeDirection.DownLeft:
         case EasyTouch.SwipeDirection.UpLeft:
         case EasyTouch.SwipeDirection.Left:
             playerRigibody2D.rigidbody2D.velocity = movementLeft * speed;
             break;
 
         case EasyTouch.SwipeDirection.DownRight:
         case EasyTouch.SwipeDirection.UpRight:
         case EasyTouch.SwipeDirection.Right:
             playerRigibody2D.rigidbody2D.velocity = movementRight * speed;
             break;
     
         }
         }
     void FixedUpdate () 
     {
     }
 
 
 }

Answer 1

I used mathf.lerp and mathf.clamp functions

 using UnityEngine;
 using System.Collections;
 
 public class PlayerMoviment_Lerp : MonoBehaviour {
 
         public float smooth;
         public float distance;
         private Vector3 newPosition;
 
         void Awake ()
         {
         newPosition = transform.position;
         }
         
     void OnEnable(){
         EasyTouch.On_SwipeEnd += On_SwipeEnd;
     }
     
     void OnDestroy(){
         EasyTouch.On_SwipeEnd -= On_SwipeEnd;
         
     }
     
     void On_SwipeEnd (Gesture gesture) 
     {
         switch (gesture.swipe) {
         case EasyTouch.SwipeDirection.DownLeft:
         case EasyTouch.SwipeDirection.UpLeft:
         case EasyTouch.SwipeDirection.Left:
             newPosition += Vector3.left * distance;
             break;
             
         case EasyTouch.SwipeDirection.DownRight:
         case EasyTouch.SwipeDirection.UpRight:
         case EasyTouch.SwipeDirection.Right:
             newPosition += Vector3.right * distance;
             break;
         }
     }    
 
         void Update ()
         {
             PositionChanging();
             transform.position = new Vector3 (Mathf.Clamp (transform.position.x,-2.0f,2.0f),-8.51f,0.0f);
             newPosition = new Vector3 (Mathf.Clamp (newPosition.x, -2.0f,2.0f),-8.51f,0.0f);
             Debug.Log (newPosition);
         }
         
         
         void PositionChanging ()
         {
             transform.position = Vector3.Lerp(transform.position, newPosition, smooth * Time.deltaTime);
         }
         
 
 }

Answer 2

Answer by fafase · Feb 25, 2015 at 05:25 PM

You have 5 possible positions from -2 to 2 but those could be stored as positions in an array.

You get the direction of your swipe so that you can convert it to -1 or 1.

Then you have an index that is your current position:

 int [] array = {-2, -1, 0, 1, 2};
 int value = GetSwipe(); 
 index += value;
 index = Mathf.Clamp(index, 0 , array.Length - 1);
 
 int position = array[index];

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Swipe movement limitation

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