How to animate a spinning wheel?

Questions & Answers
1

Hello. I am working on a simple project where a roulette wheel spins for a few seconds then slows to a stop using a coroutine. When I tun the program the wheel only moves a few pixels then stops. I’m thinking it has something to do with the way my IEnumerator is set up but I am not sure how to go about fixing it. The code is posted below. Thanks for any help.

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

public class WheelController : MonoBehaviour
{
    float rotSpeed = 0;
    public float activeRotSpeed = 20f;
    public float rotDecrease = 0.90f;
    // Start is called before the first frame update
    void Start()
    {
        this.rotSpeed = activeRotSpeed;

    }

    IEnumerator WheelCon()
    {

        transform.Rotate(0, 0, this.rotSpeed);

        yield return new WaitForSeconds(5);

        this.rotSpeed *= rotDecrease;

    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            StartCoroutine(WheelCon());
        }

    }
}
2

Coroutine:

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

public class WheelController : MonoBehaviour
{
    
    [SerializeField] AnimationCurve _spinCurve = new AnimationCurve(
        new Keyframe( 0f , 0f , -1f , 0f ) ,
        new Keyframe( 0.1f , 1f , -1f , 0f ) ,
        new Keyframe( 0.8f , 1f , -1f , 0f ) ,
        new Keyframe( 1f , 0f , -1f , 0f )
    );
    [SerializeField] float _spinAmplitude = 200f;// stretches spin curve vertically
    [SerializeField] float _spinDuration = 5f;// stretches spin curve horizontally

    void Update ()
    {
        if( Input.GetMouseButtonDown(0) )
        {
            StartCoroutine( StartSpinning() );
        }
    }

    IEnumerator StartSpinning ()
    {
        float spinStartTime = Time.time;
        while( ( Time.time - spinStartTime ) < _spinDuration )
        {
            float curveTime = ( Time.time - spinStartTime ) / _spinDuration;
            float degrees = _spinCurve.Evaluate( curveTime ) * _spinAmplitude;
            if( Mathf.Abs(degrees)>0 )
            {
                transform.Rotate( 0 , 0 , degrees * Time.deltaTime , Space.Self );
            }
            yield return null;
        }
    }

}

_

No coroutine:

using UnityEngine;

public class WheelController : MonoBehaviour
{
    [SerializeField] AnimationCurve _spinCurve = new AnimationCurve(
        new Keyframe( 0f , 0f , -1f , 0f ) ,
        new Keyframe( 0.1f , 1f , -1f , 0f ) ,
        new Keyframe( 0.8f , 1f , -1f , 0f ) ,
        new Keyframe( 1f , 0f , -1f , 0f )
    );
    [SerializeField] float _spinAmplitude = 200f;// stretches spin curve vertically
    [SerializeField] float _spinDuration = 5f;// stretches spin curve horizontally
    float _spinStartTime = -1000;

    void Update ()
    {
        if( Input.GetMouseButtonDown(0) )
        {
            _spinStartTime = Time.time;
        }

        float curveTime = ( Time.time - _spinStartTime ) / _spinDuration;
        float degrees = _spinCurve.Evaluate( curveTime ) * _spinAmplitude;
        if( Mathf.Abs(degrees)>0 )
        {
            transform.Rotate( 0 , 0 , degrees * Time.deltaTime , Space.Self );
        }
    }

}
3

Thanks for the help! I never considered doing it this way.