以递增和递减的速度启动物体旋转

Question

我目前有一个脚本，基本上是让一个对象旋转一旦按下空格键。当再次按下它时，对象将停止。很简单，对吧？

我如何继续做它，例如，通过按空格键激活旋转到速度从0到缓慢到(例如) 1000转/分钟。当我释放空间时，让速度降回0？

这是我到目前为止所知道的：

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class spin : MonoBehaviour
{
    public float speed = 500f;
    public Button starter;
    public Button stopper;
    bool isSpinning = false;

    IEnumerator spinnerCoroutine;

    void Start()
    {
        spinnerCoroutine = spinCOR();
    }

    void Update()
    {
        //Start if Space-key is pressed AND is not Spinning
        if (Input.GetKeyDown(KeyCode.Space) && !isSpinning)
        {
            FidgetSpinnerStart();
        }

        //Stop if Space-key is pressed AND is already Spinning   
        else if (Input.GetKeyDown(KeyCode.Space) && isSpinning)
        {
            FidgetSpinnerStop();
        }
    }

    IEnumerator spinCOR()
    {
        //Spin forever until FidgetSpinnerStop is called 
        while (true)
        {
            transform.Rotate(Vector3.up, speed * Time.deltaTime);
            //Wait for the next frame
            yield return null;
        }
    }

    void FidgetSpinnerStart()
    {
        //Spin only if it is not spinning
        if (!isSpinning)
        {
            isSpinning = true;
            StartCoroutine(spinnerCoroutine);
        }
    }

    void FidgetSpinnerStop()
    {
        //Stop Spinning only if it is already spinning
        if (isSpinning)
        {
            StopCoroutine(spinnerCoroutine);
            isSpinning = false;
        }
    }
}

干杯!

Answer 1

更改：

public float speed = 500f;

至：

public float speed = 0f;
public float maxspeed = 500f;
public float acceleration = 1f;

在Update中，添加：

if (isSpinning)
{
    if (speed < maxspeed)
    {
        speed += acceleration;
    }
    if (speed > maxspeed)
    {
        speed = maxspeed;
    }
}
else
{
    if (speed > 0)
    {
        speed -= acceleration;
    }
    if (speed < 0)
    {
        speed = 0;
    }
}

增加acceleration的值以使微调器更快地达到最大速度。