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Question by unityfanboy · Mar 05, 2014 at 07:38 PM · c#gameobjectcommunicationsidescroller

how to communicate with the target gameobject?

I am trying my camera to follow a 2d player only on x position but c# is very strict

this is the script of my camera

 public class Follow : MonoBehaviour {
     public Transform target;
 
 
     
     // Update is called once per frame
     void Update () {
         transform.position.x = target.position.x;
     }
 }

I dont know the data type to make store them as a variable, I tried vector but it cant be explicitly convert from float? an explanation as to why this code won't work and why your code would work is a big help. thank you

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Answer by robertbu · Mar 05, 2014 at 07:40 PM

Transform.position is a Vector3, and C# is a stickler about how you modify an a single component of transform.position. You can do it this way:

 void Update () {
     Vector3 pos = transform.position;
     pos.x = target.position.x;
     transform.position = pos;
 }
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Answer by unityfanboy · Mar 05, 2014 at 08:19 PM

 void Update () {
     Vector3 pos = transform.position;
     pos.x = target.position.x;
     transform.position.x = pos;
 }

I dont know why but this did not work, I got 2 errors

Assets/Follow.cs(13,27): error CS1612: Cannot modify a value type return value of UnityEngine.Transform.position'. Consider storing the value in a temporary variable* and *Assets/Follow.cs(13,36): error CS0029: Cannot implicitly convert type UnityEngine.Vector3' to `float'

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avatar image robertbu · Mar 05, 2014 at 08:20 PM 0
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I caught my error, but apparently you'd already read the answer. Look at the last code line:

 transform.position = pos;
avatar image unityfanboy · Mar 05, 2014 at 08:35 PM 0
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omg it works! its so amazing. thank you so much robertu you really helped me a lot! :D

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