1

Hello Unity folks,

In my 2D game I have a floating character which is the main player. If the player is floating towards the left it is leaning left till it reaches 45 degrees on the z axis of Rotation. My question is; How can I make it rotate back to start position when key is released?

This is the script to make it lean to 45 degrees in both direction;

using UnityEngine;
using System.Collections;

public class PlayerMovement : MonoBehaviour {
	public float speed = 1f;
	private Vector3 myRotation;
	
	void Start() {
		myRotation = gameObject.transform.rotation.eulerAngles;
	}
	
	void Update() {
		if(Input.GetKey(KeyCode.D))
			transform.position += new Vector3
				(speed * Time.deltaTime, 0.0f, 0.0f);
		
		if(Input.GetKey(KeyCode.A))
			transform.position -= new Vector3
				(speed * Time.deltaTime, 0.0f, 0.0f);
		
		if(Input.GetKey(KeyCode.D)) {
			myRotation.z = Mathf.Clamp(myRotation.z - 1f, -45f, 45f);
			transform.rotation = Quaternion.Euler(myRotation);
		}
		
		if (Input.GetKey (KeyCode.A)) {
						myRotation.z = Mathf.Clamp (myRotation.z + 1f, -45f, 45f);
						transform.rotation = Quaternion.Euler (myRotation);

				}
	}
}

I have tried this code to make it return to start position but it looks strange as the player is not returning slowly to its position:

if(Input.GetKeyUp(KeyCode.A) || Input.GetKeyUp(KeyCode.D)) {
             gameObject.transform.rotation = Quaternion.identity;
         }
2

If you want create smooth rotate back, use SLerp and see simple example below (write on CSharp):

 private bool isBack = false;

 void Update() {
  //This your code with Getkey
  if(Input.GetKey(KeyCode.D)) {
   isBack = false; //in each condition, contains GetKey add this line
   transform.position += new Vector3(speed * Time.deltaTime, 0.0f, 0.0f);
  }
  //...
  //Than check up key and doing smooth rotate
  if(Input.GetKeyUp(KeyCode.A) || Input.GetKeyUp(KeyCode.D)) {
   isBack = true;
  }
  if (isBack) {
   transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.identity, 2.0f * Time.deltaTime);
   //Check, if end rotation
   if (Quaternion.Angle(transform.rotation, Quaternion.identity) < 2.0f) {
    transform.rotation = Quaternion.identity;
    isBack = false;
   }
  }
 }

But, better use always Quaternion instead eulerAngle. I hope that it will help you.