Make an object follow a curved path using iTween

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Hi, I have asked a few questions now and have gotten responses for all so i am grateful and hope this trend continues. My current question is in regards itween. Say you have a cube at (0,0,0). How do you make it travel along a curved path? Bear in mind moveToBezier is deprecated in 2.0. A code snippet would be much appreciated. Thank you all in advance.

Answer 1

Best Answer

Answer by Shrandis · Oct 03, 2012 at 10:29 AM

You can use iTween's PutOnPath function.

Simple example:

Create "waypoint" gameobjects. (empty gameobjects). Then, assign those waypoints in the order you want to waypointArray.

     public Transform[] waypointArray;
     float percentsPerSecond = 0.02f; // %2 of the path moved per second
     float currentPathPercent = 0.0f; //min 0, max 1
         
     void Update () 
     {
         currentPathPercent += percentsPerSecond * Time.deltaTime;
         iTween.PutOnPath(gameObject, waypointArray, currentPathPercent);
     }
     
     void OnDrawGizmos()
     {
         //Visual. Not used in movement
         iTween.DrawPath(waypointArray);
     }

Keep in mind that PutOnPath may have some issues if your goal is to make a movement with constant speed. (I'm not going into detail because it isn't what OP asked)

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Alter · Feb 25, 2013 at 12:43 AM 0

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This is actually perfect for what I was looking for myself, however how would I go about making the gameobject turn/face the way it's moving also to add a jump feature?

I have this setup if it helps;

 using UnityEngine;
 using System.Collections;
 
 public class $$anonymous$$ovement : $$anonymous$$onoBehaviour {
  
     private float smoothing = 1.0f;
     private Vector3 targetPosition;
     
     public float runSpeed = 0;
     private int jumpCount = 0;
     public float jumpForce = 1.0f;
     
     public float gravity = 10;
     
     public Transform[] path;
     
     float percentsPerSecond = 0.02f; // %2 of the path moved per second
     float currentPathPercent = 0.0f; //$$anonymous$$ 0, max 1
 
  
     // Use this for initialization
     void Start () {
         
         Physics.gravity = new Vector3(0, -gravity, 0);
  
     }

     // Update is called once per frame
     void Update () 
     {
         
         bool grounded;
         
         
         currentPathPercent += percentsPerSecond * Time.deltaTime;
            iTween.PutOnPath(gameObject, path, currentPathPercent);
         
         
         //JU$$anonymous$$P//
         if (Physics.Raycast (transform.position, -transform.up, 1)) 
        {
          grounded = true;        
          //reset our jump count since we hit the ground //0 for double jump
          jumpCount = 1;   
                 
        } 
  
        else 
        {
          grounded = false;
          float amtTo$$anonymous$$ove = Input.GetAxisRaw ("Horizontal") * 0.1f * Time.deltaTime;     
        }
  
  
        if (Input.Get$$anonymous$$eyDown ("space") && (grounded || jumpCount < 1)) 
        {
          rigidbody.AddRelativeForce (transform.up * jumpForce, Force$$anonymous$$ode.Impulse);
        }
 
     }
     
     void OnDrawGizmos(){
         iTween.DrawPath(path);
     }
 }

aceleeon5 · Jun 26, 2014 at 01:52 AM 0

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Sounds like you got pretty far with it! how did this turn out?

Answer 2

Answer by Koyemsi · Sep 12, 2019 at 11:08 AM

Replying to an old thread, but some may find this useful...

One can also use iTween.MoveTo() with a "path" attribute. The path has to be an array of Transform or Vector3.

Here is an example :

 public GameObject movingObject;
 public Transform[] waypoints;
 float speed = 2f;
 
  iTween.MoveTo(movingObject, iTween.Hash(
             "path", waypoints,
             "time", speed,
             "easetype", iTween.EaseType.easeInOutQuad));

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Make an object follow a curved path using iTween

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