How to restart object position in Unity?-CodePudding

I have a problem with refreshing object position, the condition I want to make is pretty easy. If a game object moves too far by X axis, then restart its position where it was at the beginning

My code

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    public float playerSpeed = 5.0f;
    private Rigidbody playerRb;
    private Vector3 startPos;
    
    

    // Start is called before the first frame update
    void Start() 
    {
        playerRb = GetComponent<Rigidbody>();
        startPos = GameObject.Find("Player").transform.position;
    }
    
    void restartPlayerPosition() 
    {
        if(transform.position.x > 10 || transform.position.x < 10){ 
            this.transform.position = startPos;
    }

    }

    // Update is called once per frame
    void Update()
    {
        float horizontalnput = Input.GetAxis("Horizontal");
        float verticalInput = Input.GetAxis("Vertical");

        playerRb.AddForce(Vector3.forward * playerSpeed * verticalInput);
        playerRb.AddForce(Vector3.right * playerSpeed * horizontalnput);

        restartPlayerPosition();
    }

}

But instead of move back and forth, it rotates, and I don't know why. The thing I know, is that something wrong happens when I call startPos in the start() method, It is trying to refresh location immediately instead of looking on if statement condition first. Do I miss something?

I've also tried to find position of an object by using this method

gameObject.transform.position = sartPos

No errors, but won't work as I wanted it to

CodePudding user response：

I think you forget the minus for the position to -10 < x < 10.

Change the condition to like this in restartPlayerPosition().

if(transform.position.x > 10 || transform.position.x < -10)

That's it. It will work.

CodePudding user response：

In the Update method, the code adds force to the playerRb in the forward and right directions, causing it to move in those directions. However, the restartPlayerPosition method is called after this, which sets the transform position of the player object to the startPos. This causes the player to jump back to its starting position and rotate around the startPos point.

To fix this issue, the restartPlayerPosition method should be called before the playerRb is moved in the Update method. This will ensure that the player stays at its starting position unless it is moved by user input.

The updated code would be:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
public float playerSpeed = 5.0f;
private Rigidbody playerRb;
private Vector3 startPos;

// Start is called before the first frame update
void Start() 
{
    playerRb = GetComponent<Rigidbody>();
    startPos = GameObject.Find("Player").transform.position;
}

void restartPlayerPosition() 
{
    if(transform.position.x > 10 || transform.position.x < 10){ 
        this.transform.position = startPos;
}

}

// Update is called once per frame
void Update()
{
    restartPlayerPosition();

    float horizontalnput = Input.GetAxis("Horizontal");
    float verticalInput = Input.GetAxis("Vertical");

    playerRb.AddForce(Vector3.forward * playerSpeed * verticalInput);
    playerRb.AddForce(Vector3.right * playerSpeed * horizontalnput);
}

CodePudding user response：

Change your RestartPlayerPosition method with this:

void restartPlayerPosition() 
{
    if(transform.position.x > (startPos.x  10) || transform.position.x < (startPos.x - 10)
    { 
        this.transform.position = startPos;
    }
}