How to use easing inside coroutine to change a float value?

Questions & Answers
1

I would like to increase the value of a float over time but with added In-Out easing.
Here I’m using Mathf.Lerp and I know there is Mathf.Smoothstep but in SmoothStep, I can’t seem to control the speed of the easing itself. I would like the easing to start from a certain value to another value over a specific time(range?) I choose. For example, if the float is changing from 0 to 100, I would like the easing to be from 0 to 20 and again from 70 to 100.

Here is the current code I’m using:

float minValue = 0;
float maxValue = 100;
float duration = 10;

float value;

void Start()
    {
          StartCoroutine(IncreaseSpeed(minValue, maxValue, duration));
    }

 private IEnumerator IncreaseSpeed(float start, float end, float duration)
    {
        float time = 0;
        while (time <= duration)
        {
            time = time + Time.deltaTime;
            value = Mathf.Lerp(start, end, time / duration);

            yield return null;
        }
    }
2

hi (: try this:

    float minValue = 1;
    float maxValue = 2;
    float duration = 3;
    float value;
    void Start()
    {
        StartCoroutine(IncreaseSpeed(minValue, maxValue, duration));
    }
    private IEnumerator IncreaseSpeed(float start, float end, float duration)
    {
        float percent = 0;
        float timeFactor = 1 / duration;
        while (percent < 1)
        {
            percent += Time.deltaTime * timeFactor;
            value = Mathf.Lerp(start, end, Mathf.SmoothStep(0,1,percent));
            yield return null;
        }
    }