Why is my character movement jerky/stuttry/jettry?

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Hi , I'm trying to make a 2D game and I'm trying to nail the movement down, but no matter what I use it's always as I described it in the title, until I tumbled upon a characterController2D script made by Prime31 and when I used it the movement became buttery smooth in the right way I wanted to do it, I tried to understand the gentleman's code but I'm not an expert so im still in the process of understanding it

this is a video to show the difference between my movement code (bottom cube) and prim31's script (top cube)

The video

here is prime31's code on Github, and for me I used all possible ways of movement that I know of, through the rigidbody and or through the transform

so if I can get some insight on how to get same results without having to use prime31's code or at least how I could improve the jerkiness seen in video

pardon my English , thank you

Answer 1

Answer by KingKong320 · Apr 09, 2019 at 06:51 AM

@xxmariofer this is the script attached on camera

 public Transform leftSideLimt, rightSideLimit;
 
 public GameObject FollowTargetOBJ;
 public float FollowSpeed;

 //Paralax layers
 public GameObject[] BackgroundROOTS;



 private bool PlayerJustDied;


 void Start ()
 {
     FollowTargetOBJ = GameObject.FindGameObjectWithTag ("Player");

 
 }


 void FixedUpdate ()
 {
     if (PlayerJustDied == false && FollowTargetOBJ.transform.position.x > leftSideLimt.position.x && FollowTargetOBJ.transform.position.x < rightSideLimit.position.x) {
         //Smoothly Follow Target
         Vector3 PositionBefore = transform.position;
         Vector3 NewPosition = Vector3.Lerp (transform.position, FollowTargetOBJ.transform.position, FollowSpeed * Time.deltaTime);
 
         transform.position = new Vector3 (NewPosition.x + 2.5f, NewPosition.y + 1.3f, transform.position.z);
 
         //Paralax layer movement
         Vector3 CameraMovementAmount = PositionBefore - this.transform.position;
 
         BackgroundROOTS [0].transform.Translate (-CameraMovementAmount * 0.8f);
 
     }
 
 }

i set interpolate to interpolate..it started jerks,but when i set interpolate to none camera follows fine but characters movement is not smooth.Please help me out

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xxmariofer · Apr 09, 2019 at 07:21 AM 0

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first change the FixedUpdate to the Update, i thought your issue was the player not being smooth not the camera

KingKong320 xxmariofer · Apr 10, 2019 at 04:04 AM 0

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i have done that but that did not fix in update :(.... And my character is moving smoothly but not the camera is following it smoothly...i have attached this script on empty gameobject and that empty gameobject contains 2 cameras in scene,,one is following background and the other is following character.

xxmariofer KingKong320 · Apr 10, 2019 at 07:34 AM 0

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ok try changing this 2 lines

 Vector3 NewPosition = Vector3.Lerp (transform.position, FollowTargetOBJ.transform.position, FollowSpeed * Time.deltaTime);
  
 transform.position = new Vector3 (NewPosition.x + 2.5f, NewPosition.y + 1.3f, transform.position.z);

to this

     Vector3 NewPosition = Vector3.Lerp (transform.position, FollowTargetOBJ.transform.position  + new Vector3(2.5f, 1.3f, 0.0f), FollowSpeed * Time.deltaTime);
      
     transform.position = new Vector3 (NewPosition.x, NewPosition.y, transform.position.z);

Answer 2

Answer by zakkaiokenx10 · Apr 09, 2019 at 07:18 AM

Please use a cinemachine 2d camera and make it follow the player. That will help you better than hard coding a new camera, as well as giving you features you'll enjoy..

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Why is my character movement jerky/stuttry/jettry?

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