Error whit c# code 'UnityEngine.Transform.position' because it is not a variable.

Questions & Answers
1

hi I am develop in C# but I have a error with this

 Player01.position.x = mainCam.ScreenToWorldPoint(new Vector3(75f, 0f, 0f)).x;
 Player02.position.x = mainCam.ScreenToWorldPoint(new Vector3(Screen.width - 75f, 0f, 0f)).x;

in the 2 lines, those is the messages of error:

Assets/GameSetup.cs(36,5): error CS0165: Use of unassigned local variable Player01' Assets/GameSetup.cs(36,5): error CS0165: Use of unassigned local variable Player02’

and

Cannot modify the return value of ‘UnityEngine.Transform.position’ because it is not a variable.

this is all script:

using UnityEngine;
using System.Collections;


public class GameSetup : MonoBehaviour
{
    //Reference the camera
    public Camera mainCam;

    //Reference the colliders we are going to adjust
    public BoxCollider2D topWall;
    public BoxCollider2D bottomWall;
    public BoxCollider2D leftWall;
    public BoxCollider2D rightWall;
    //Reference the players
    public Transform Player01;
    public Transform Player02;

    void start() 
    {
        //Only set this to Update if you know the screen size can change during a playsession.

        //Move each wall to its edge location:
        topWall.size = new Vector2(mainCam.ScreenToWorldPoint(new Vector3(Screen.width * 2f, 0f, 0f)).x, 1);
        topWall.center = new Vector2(0f, mainCam.ScreenToWorldPoint(new Vector3(0f, Screen.height, 0f)).y + 0.5f);

        bottomWall.size = new Vector2(mainCam.ScreenToWorldPoint(new Vector3(Screen.width * 2f, 0f, 0f)).x, 1f);
        bottomWall.center = new Vector2(0f, mainCam.ScreenToWorldPoint(new Vector3(0f, 0f, 0f)).y - 0.5f);

        leftWall.size = new Vector2(1f, mainCam.ScreenToWorldPoint(new Vector3(0f, Screen.height * 2f, 0f)).y); ;
        leftWall.center = new Vector2(mainCam.ScreenToWorldPoint(new Vector3(0f, 0f, 0f)).x - 0.5f, 0f);

        rightWall.size = new Vector2(1f, mainCam.ScreenToWorldPoint(new Vector3(0f, Screen.height * 2f, 0f)).y);
        rightWall.center = new Vector2(mainCam.ScreenToWorldPoint(new Vector3(Screen.width, 0f, 0f)).x + 0.5f, 0f);


        //Move the players to a fixed distance from the edges of the screen:
        Player01.position.x = mainCam.ScreenToWorldPoint(new Vector3(75f, 0f, 0f)).x;
        Player02.position.x = mainCam.ScreenToWorldPoint(new Vector3(Screen.width - 75f, 0f, 0f)).x;

    }
}

this is that I want getting:

alt text

2

In CSharp you can’t modify elements of position by one. Create another Vector3. Example see bellow:

 Vector3 tempVec = Vector3.zero;
 tempVect = Player01.position;
 tempVec.x = mainCam.ScreenToWorldPoint(new Vector3(75f, 0f, 0f)).x;
 Player01.position = tempVec;
 tempVect = Player02.position;
 tempVec.x = mainCam.ScreenToWorldPoint(new Vector3(Screen.width - 75f, 0f, 0f)).x;
 Player02.position = tempVec;

I he that it will help you.