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Question by sayuki801 · Sep 05, 2015 at 01:09 AM · c#cameratransform

getting the position of player for the minimap to follow

using UnityEngine; using System.Collections;

public class MapFollow : MonoBehaviour {

 [SerializeField] public Transform target;

 void Update () 
 {
     gameObject.transform.position.z = target.transform.position.z;
     gameObject.transform.position.x = target.transform.position.x;
 }

}

This is the error:

Assets/IBN/MapFollow.cs(15,38): error CS1612: Cannot modify a value type return value of UnityEngine.Transform.position'. Consider storing the value in a temporary variable Assets/IBN/MapFollow.cs(16,38): error CS1612: Cannot modify a value type return value of UnityEngine.Transform.position'. Consider storing the value in a temporary variable

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Answer by getyour411 · Sep 05, 2015 at 01:10 AM

A C# gotcha; create a new Vector3(someX, someY, someZ)

assign gameObject.transform.position to that new Vector3; you can't do the x= new x, y=new y z=new z stuff in C#

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avatar image Adamcbrz · Sep 05, 2015 at 03:08 AM 1
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Just to clarify a little. Position on a transform is a property with a getter setter. In c# you can't modify a properties fields of a value type. Vector3 in unity is a struct which is a value type. So what @getyour411 is saying is create a new vector3 and set the position to that.

 transform.position = new Vector3(target.position.x, transform.position.y, target.position.z);
avatar image sayuki801 · Sep 06, 2015 at 09:42 AM 0
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Thank you guys :))

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