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Question by Salman_Shh · Apr 18, 2015 at 11:52 PM · c#gameobjectlerppostion

How can I LERP the X position to the X position of the player

with my code i've only gotten the game object to to go directly to the X position of the player - though it moves in a jagged manner

 using UnityEngine;
 using System.Collections;
 
 public class SetPositonToPlayerX : MonoBehaviour {
     private Transform myTarget;  // Using it to grab the player's position
     private float playerXPosition;
     // Use this for initialization
     void Start () {
         
     
     }
     
     // Update is called once per frame
     void Update () {
         // Looks for the "the player" + the transform
 
         if (myTarget == null)
         {
             myTarget = GameObject.Find("The Player").transform;
             Debug.Log("Yo dawg Where'd the Player Ship go!?");
 
             return;// if The TARGET iS NOT FOUND - try again in the next frame.   
         }
         ///////////////////////////////////////////////////////////////////////////////
         if (myTarget != null) {
             playerXPosition = myTarget.position.x;
             transform.position = new Vector2(playerXPosition, transform.position.y);
 
 
         }
     }
 }
 


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avatar image Soos621 · Apr 19, 2015 at 12:13 AM 0
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try running it under FixedUpdate ins$$anonymous$$d of update

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Answer by Salman_Shh · Apr 22, 2015 at 02:12 AM

 using UnityEngine;
 using System.Collections;
 
 public class SetPositonToPlayerX : MonoBehaviour{
     private float x;
     private float y;
     private float z;
     Vector3 pos;
 
     private Transform myTarget;  // Using it to grab the player's position
     private float playerXPosition;
     public float Smoothing = 0.2f;
     // Use this for initialization
 
 
     // Update is called once per frame
     void Update()
     {
         //the game object's X Position
         //float goXPosition = transform.position.y;
         // Looks for the "the player" + the transform
 
         if (myTarget == null)
         {
             myTarget = GameObject.Find("The Player").transform;
             Debug.Log("Yo dawg Where'd the Player Ship go!?");
 
             return;// if The TARGET iS NOT FOUND - try again in the next frame.   
         }
 
         // if the player target is found
         if (myTarget != null)
         {
             //Updates the Player X Position variable to the target's X position
             playerXPosition = myTarget.position.x;
             setToPositionX();
           
         }
     }
 
     void setToPositionX(){
         //gameObject.transform.position
             //transform.position = new Vector3(Vector3.Lerp(transform.position.x, playerXPosition, Time.deltaTime), transform.position.y), transform.position.z);
         //Sets the x position  float with lerp.
         x = Mathf.Lerp(playerXPosition, transform.position.y, Smoothing);
         //Sets the Y Position to gameobjects's y Position
         y = transform.position.y;
         //sets the Z Position to the gameobject's Z Position.
         z = gameObject.transform.position.z;
         //Puts all the positions together
         pos = new Vector3(x, y, z);
         //Sets the objects position to the new position from "pos"
         transform.position = pos;
 
         }
 }

I found out my own solution - this worked for me I'm able to change the rate in which the gameobject moves towards the target x position by the "smoothing" variable.

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Answer by Berge · Apr 19, 2015 at 03:18 PM

See the documentation on Vector2.Lerp. http://docs.unity3d.com/ScriptReference/Vector2.Lerp.html

transform.position = Vector2.Lerp(transform.position, new Vector2(playerXPosition, transform.position.y), 0.2);

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avatar image Salman_Shh · Apr 19, 2015 at 11:43 PM 0
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Didn't work :L

avatar image Berge · Apr 20, 2015 at 06:41 AM 0
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Can you specify? Did it move at all?

avatar image Salman_Shh · Apr 22, 2015 at 01:44 AM 0
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the gameobject doesnt stay in its zposition + moves to the exact X position (moving all jagged-like)

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