Lock rotation of player

[JonathanXD12]

I’m currently making a 2D game as a beginner and I made a spinning platform. But when it’s rotating the player’s rotation (z-axis) also changes because it’s a child of the platform. I need this when I use moving platforms. Now I want to lock the z-axis of the rotation of the player. I already tried it in 3 different ways, but none of them seems to be working. Does anybody know how to do this?

These are the three ways I tried:

// 1
PlayerTrans.transform.Rotate(
    PlayerTrans.transform.rotation.x, 
    PlayerTrans.transform.rotation.y, 
    0);

// 2
PlayerTrans.transform.Rotate(
    PlayerTrans.transform.rotation.x, 
    PlayerTrans.transform.rotation.y, 
    0, 
    Space.Self);

// 3
PlayerTrans.transform.localRotation = Quaternion.Euler(new Vector3(
    PlayerTrans.transform.localEulerAngles.x, 
    PlayerTrans.transform.localEulerAngles.y, 
    0f));

and this is, what my code looks like for staying on the moving platforms. I used raycasting for this:

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

public class Raycasting : MonoBehaviour
{
    // Start is called before the first frame update
    Transform PlayerTrans;
    public float RayCastRange = 3;
    void Start()
    {
        PlayerTrans = transform.parent;
    }

    // Update is called once per frame
    void Update()
    {
        RaycastHit2D PlattformCheck = Physics2D.Raycast(transform.position, -Vector2.up, RayCastRange);

        if (PlattformCheck.collider != null)
        {
            if (PlattformCheck.collider.gameObject.tag == "Platform")
            {
                PlayerTrans.transform.SetParent(PlattformCheck.collider.gameObject.transform);
            }
            else
            {
                PlayerTrans.transform.SetParent(null);
            }
        }
        else
        {
            PlayerTrans.transform.SetParent(null);
        }
    }
}

[kevinhart1001001]

Hello, if you are using a Rigidbody, you can easily lock the z.rotation (image)

,Hello, i guess you can disable rotation, if you use a Rigidbody (Disable Rotation on Z-Axis)

[The-Peaceful]

I think all you need to do is set the global eulerAngles like this:

Vector3 eulers = PlayerTrans.eulerAngles;
PlayerTrans.eulerAngles = new Vector3(eulers.x, eulers.y, 0f);

Though this would mean that you set the rotation around your Z-axis to 0 which you might not want to do. So maybe then go and create a variable storing the global angle around the Z-axis and use that instead:

float zRotation = 0f; //Add the rotation value onto this variable when changing the Z-Rotation

void Update() {
    Vector3 eulers = PlayerTrans.eulerAngles;
    PlayerTrans.eulerAngles = new Vector3(eulers.x, eulers.y, zRotation);
}

And to answer why the methods you’ve tried didn’t work:

transform.Rotate:

• Rotates given degrees over given angles
• if you rotate 0 over the Z-axis you won’t rotate it at all
• Also rotation is not a value in degrees! The rotation is stored in Quaternions, to get angles in degrees you have to use EulerAngles

transform.localRotation = Quaternion.Euler(…
validt option, but you take the local (relative to it’s parent) eulerAngles so 0 degrees on the Z-axis is equal the degrees that it’s parent has on that axis (so it will still rotate if it’s parent rotates)

---

Hope that helps, if not let me know