Character Rotation (28480)

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1

Alright so i am trying to write a movement script kind of like what would be used for a 2d side scroller. my problem lies in having the character rotate to the direction he is walking. i cant seem to figure out a solution to make this work properly. here is the current code i have atm

using UnityEngine;
using System.Collections;

public class PlayerMovement : MonoBehaviour 
{
	public float speed = 10.0f;
	public float rotationspeed = 100.0f;
	private float moveBack = -1.0f;
	private float moveForward = 1.0f;

	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () 
	{
		if(Input.GetKey(KeyCode.A))
		{
			float translation = moveBack * speed;
			//float rotation = moveBack * rotationspeed;
			translation *= Time.deltaTime;
			//rotation *= Time.deltaTime;
			transform.position += Vector3.right * translation;
		}
		
		if(Input.GetKey(KeyCode.D))
		{
			float translation = moveForward * speed;
			//float rotation = moveBack * rotationspeed;
			translation *= Time.deltaTime;
			//rotation *= Time.deltaTime;
			transform.position += Vector3.right * translation;
		}
	}
}

I presume the problem is that the player keeps rotating forever? Also you might want to use Vector3.forward as the move direction, assuming the player character faces the walk direction. In case my assumption was correct, you may want to try a Mathf.Clamp method to constraint the rotation.

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2 Answers

2
2

Try this:

transform.forward = Vector3.Slerp(transform.forward, Vector3.right * translation, rotationspeed);

Thank you so much this worked perfectly. just had to multiply Time.deltaTime to rotationspeed for it to rotate smoothly. i cant thank you enough for this.

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3

This might be what you are looking for.

[RequireComponent(typeof(CharacterController))]
public class PlayerMovement : MonoBehaviour
{
    public float movementSpeed = 10.0f;
    public float rotationSpeed = 100.0f;

    private CharacterController controller;

    void Start()
    {
        // Finds the objects charactercontroller.
        controller = GetComponent<CharacterController>();
    }

    void Update()
    {
        if (Input.GetKey(KeyCode.A))
        {
            LookAtDirection(-Vector3.right);
            Move();
        }

        if (Input.GetKey(KeyCode.D))
        {
            LookAtDirection(Vector3.right);
            Move();
        }

    }

    public void LookAtDirection(Vector3 targetDirection)
    {
        gameObject.transform.rotation = Quaternion.Slerp(gameObject.transform.rotation,
                                        Quaternion.LookRotation(targetDirection),
                                        rotationSpeed * Time.deltaTime);
    }

    public void Move()
    {
        Vector3 moveDirection = gameObject.transform.forward * movementSpeed;

        // Move the controller
        controller.Move(moveDirection * Time.deltaTime);
    }
}

*Updated to include some movement code.