How to achieve an undertale style camera

Question

I'm looking for 2D camera, that will allow the player to move a certain radius before following him, like in undertale. i have written some code which does this but it jitters a bit and doesnt seem like a good way of going about it.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class CameraFollowPlayer : MonoBehaviour
 {
     public GameOb`enter code here`ject followTarget;
     private float cameraZ = 0;
 
     private Camera camera;
 
     public float cameraDistanceThreshold = 4f;
 
     public float speed = 4;
 
     
 
     void Start()
     {
         cameraZ = transform.position.z;
         camera = GetComponent<Camera>();
     }
 
     void FixedUpdate()
     {
         CheckForThreshold();
     }
 
     private void CheckForThreshold()
     {
         if (Vector2.Distance(followTarget.transform.position, transform.position) > cameraDistanceThreshold)
         {
             Vector3 delta = followTarget.transform.position - camera.ViewportToWorldPoint(new Vector3(0.5f, 0.5f, cameraZ));
 
             Vector3 destination = transform.position + delta;
 
             destination.z = cameraZ;
 
             transform.position = Vector3.MoveTowards(transform.position, destination, speed*Time.deltaTime);
         }
     }
 
 }

I have looked everywhere. and for the love of god i cant find any clean solution. i will be extremely appreciative for any help i can get :)

Answer 1

Answer by Hellium · Jun 20, 2019 at 09:17 PM

I've never played Undertale, but give the following script a shot:

 using UnityEngine;
 
 [RequireComponent(typeof(Camera))]
 public class CameraFollowPlayer : MonoBehaviour
 {
     public Transform Target;
     public float MaxDistance = 4f;
     public float Speed = 4;
 
     private new Camera camera;
     private Vector3 viewportPoint;
     private Vector3 desiredPosition;
 
     void Start()
     {
         camera = GetComponent<Camera>();
         viewportPoint = new Vector3( 0.5f, 0.5f, Mathf.Abs( transform.position.z - Target.position.z ) );
         desiredPosition = transform.position;
     }
 
     void LateUpdate()
     {
         FollowTarget();
     }
 
     private void FollowTarget()
     {
         Vector3 centerPoint = camera.ViewportToWorldPoint( viewportPoint );
         Vector3 deltaPosition = Target.position - centerPoint;
 
         if ( deltaPosition.sqrMagnitude > MaxDistance * MaxDistance )
             desiredPosition = transform.position + deltaPosition;
 
         transform.position = Vector3.MoveTowards( transform.position, desiredPosition, Speed * Time.deltaTime );
     }
 
 }

Add comment · Show 2 · Share

micheal_s · Jun 22, 2019 at 06:30 PM 0

Share

Thanks for the help, however it still jitters :/ ill try to look around

Hellium micheal_s · Jun 24, 2019 at 07:16 AM 0

Share

Do you have an heavy scene? Is your character managed by the Physics engine?

If so, you may need to use coroutines for this script. (Following script not tested)

  public Rigidbody Target;

  void Start()
  {
      camera = GetComponent<Camera>();
      viewportPoint = new Vector3( 0.5f, 0.5f, $$anonymous$$athf.Abs( transform.position.z - Target.position.z ) );
      desiredPosition = transform.position;
      StartCoroutine( FollowTarget() ) ;
  }
 
  private IEnumerator FollowTarget()
  {
      WaitForFixedUpdate wait = new WaitForFixedUpdate();
      while( true )
      {
          Vector3 centerPoint = camera.ViewportToWorldPoint( viewportPoint );
          Vector3 deltaPosition = Target.position - centerPoint;
 
          if ( deltaPosition.sqr$$anonymous$$agnitude > $$anonymous$$axDistance * $$anonymous$$axDistance )
              desiredPosition = transform.position + deltaPosition;
 
          transform.position = Vector3.$$anonymous$$oveTowards( transform.position, desiredPosition, Speed * Time.deltaTime );
          yield return wait;
     }
  }

How to achieve an undertale style camera

1 Reply

Your answer

Follow this Question

Related Questions