How to make a Smooth speed reduction after MouseDrag?

Question

I'm new. Please help me with this task. What am I doing wrong? I've been suffering for 5 hours. It is necessary to gradually reduce the speed of rotation of the object, after I stopped rotating it with the mouse. I used Lerp, Boolean variables, it all works. But in the end nothing works.

 public class cloudRotate : MonoBehaviour
 {
     public float rotationSpeed;
     public int mouseMultiply;
     public float lerpRate;
 
     bool mouseControll;
     bool lerpNeed; 
 
     float X; //mouse drag speed
     float t; // lerp duration
 
     private void Start()
     {
         rotationSpeed = 0.2f;
         mouseMultiply = 30;
         lerpRate = 1f;
    
         mouseControll = false;
         lerpNeed = false;
     }
   
     private void Update()
     {
 
         if ( mouseControll == false ) {
             Debug.Log(rotationSpeed);
 
             if (lerpNeed) {
                 rotationSpeed = Mathf.Lerp(X, rotationSpeed, t);
                 t += lerpRate * Time.deltaTime;
                 Debug.Log(t);
             }
 
             if (t > 1.0f)
             {
                 lerpNeed = false;
                 t = 0.0f;
             }
            
         }
 
         transform.Rotate(0, rotationSpeed, 0);
 
     }
 
 
     void OnMouseDrag()
     {
         mouseControll = true;
         X = Input.GetAxis("Mouse X") * rotationSpeed * mouseMultiply;
         transform.Rotate(new Vector3(0, -1, 0), X);
     }
 
 
     private void OnMouseUp()
     {
         mouseControll = false;
         lerpNeed = true;
         t = 0;
     }
 
 }

Answer 1

Best Answer

Answer by qobion · Feb 09, 2019 at 03:42 PM

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class cloudRotate : MonoBehaviour
 {
     public float sensitivity = 0.2f;
     public float acceleration = 0.2f;
     public float rotationSpeed = 20.0f;
 
     private float accelerationX;
     private float mouseX;
 
     void Update()
     {
     if (Input.GetMouseButtonDown(0))
     {
         mouseX = Input.mousePosition.x;
     }
         transform.Rotate(new Vector3(0, accelerationX - rotationSpeed * Time.deltaTime, 0), Space.World);
         accelerationX = Mathf.Lerp(accelerationX, 0, Time.deltaTime / acceleration);
         if (Input.GetMouseButton(0))
         {
             float deltaX = mouseX - Input.mousePosition.x;
             accelerationX = deltaX * sensitivity;
             mouseX = Input.mousePosition.x;
         }
     }
 }

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Answer 2

Answer by exveln · Feb 09, 2019 at 04:30 PM

Thank you! Now I will try to understand how it works. There's a problem here: When you click the mouse set some value rotation and get a jump

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qobion · Feb 09, 2019 at 05:06 PM 0

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Add this at the top of update

         if (Input.Get$$anonymous$$ouseButtonDown(0))
         {
             mouseX = Input.mousePosition.x;
         }

exveln qobion · Feb 09, 2019 at 06:19 PM 0

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It's working! Thank you!

How to make a Smooth speed reduction after MouseDrag?

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