koobas.hobune.stream
Mathf.lerp not finishing the lerp(age)
I am currently trying to make a Slider that smoothly goes from 0f to 100f, taking 100 seconds.
On my current way of making it work, that looks like this:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class swordui : MonoBehaviour
{
public Slider swordslider;
public float valuee;
public float speed = 0.01f;
public bool commit;
public void Awake()
{
commit = false;
valuee = 100f;
}
public void settozero()
{
valuee = 0f;
}
public void commitmoment()
{
commit = true;
}
public void Update()
{
swordslider.value = valuee;
if(commit == true)
{
valuee = Mathf.Lerp(swordslider.value, 100f, speed);
if (swordslider.value == 100f)
{
commit = false;
}
}
}
}
but this causes it to slow down by the end of the countdown. When I try to change it to:
valuee = Mathf.Lerp(0f, 100f, speed * Time.deltaTime);
it only counts up to 1, and then stops lerping.
How can I make it fully count from 0f to 100f, taking 100 seconds to do that, and without stalling by the end?
In the first case, you experienced one of the Zeno's paradoxes. Basically you are overwriting the initial value of the interpolation over and over, which in turn makes the interpolation non-linear. Your second approach is better, but you are not accelerating the time, your value will stay the same forever. What you should do is:
private float _timeAccel = 0;
private float _start = 0.0f, _end = 100.0f;
private float _speed = 0.01f;
private void Update()
{
value = Mathf.Lerp( _start, _end, _timeAccel );
_timeAccel += Time.deltaTime * _speed;
}
Also, don't worry if _timeAccel exceeds 1, the Lerp will always clamp it between 0 and 1. Good luck!
