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Lock enemy's y-axis when using Vector3.MoveTowards to follow the player

Unity Vector3.MoveTowards over the span of a minute with Time.deltaTime2D Lock x Axis on characterVector3.MoveTowards on y axis onlyLock Z axis from the gyroscope rotation [UNITY 3D]How does Vector3.MoveTowards work in Unity?RectTransform Button Start shaking with Vector3.MoveTowards()Only make camera follow player on x axis?Why is Vector3.MoveTowards only working on a single frame?Different animations depending on multiple factors on Unity mechanim animatorHow to completely stop the camera from clipping into the ground

5

1

$begingroup$

I am using the following code to make a zombie move towards me, but when playing the scene the zombie seems to be moving towards me, but also off the ground and not fixed on the y-axis

 public GameObject ThePlayer;

public float TargetDistance;

public float AllowedRange = 10;

public GameObject TheEnemy;

public float EnemySpeed;

public int AttackTrigger;

public RaycastHit Shot;



void Update()

{

    transform.LookAt(ThePlayer.transform);

    if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out Shot))

    {

        TargetDistance = Shot.distance;

        if (TargetDistance < AllowedRange)

        {

            EnemySpeed = 0.01f;

            if (AttackTrigger == 0)

            {

                //TheEnemy.GetComponent<Animation>().Play("Walking");

                transform.position = Vector3.MoveTowards(transform.position, ThePlayer.transform.position, EnemySpeed);

            }

        }

        else

        {

            EnemySpeed = 0;

            //TheEnemy.GetComponent<Animation>().Play("Idle");

        }

    }



    if (AttackTrigger == 1)

    {

        EnemySpeed = 0;

        //TheEnemy.GetComponent<Animation>().Play("Attacking");

    }

}



void OnTriggerEnter()

{

    AttackTrigger = 1;

}



void OnTriggerExit()

{

    AttackTrigger = 0;

}

What can i do to ensure that it is sticking to the y axis at all times

unity c#

share|improve this question

edited 19 hours ago

Alex Myers

2458

asked 22 hours ago

GurdeepGurdeep

261

New contributor

Gurdeep is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

add a comment | 

5

1

$begingroup$

I am using the following code to make a zombie move towards me, but when playing the scene the zombie seems to be moving towards me, but also off the ground and not fixed on the y-axis

 public GameObject ThePlayer;

public float TargetDistance;

public float AllowedRange = 10;

public GameObject TheEnemy;

public float EnemySpeed;

public int AttackTrigger;

public RaycastHit Shot;



void Update()

{

    transform.LookAt(ThePlayer.transform);

    if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out Shot))

    {

        TargetDistance = Shot.distance;

        if (TargetDistance < AllowedRange)

        {

            EnemySpeed = 0.01f;

            if (AttackTrigger == 0)

            {

                //TheEnemy.GetComponent<Animation>().Play("Walking");

                transform.position = Vector3.MoveTowards(transform.position, ThePlayer.transform.position, EnemySpeed);

            }

        }

        else

        {

            EnemySpeed = 0;

            //TheEnemy.GetComponent<Animation>().Play("Idle");

        }

    }



    if (AttackTrigger == 1)

    {

        EnemySpeed = 0;

        //TheEnemy.GetComponent<Animation>().Play("Attacking");

    }

}



void OnTriggerEnter()

{

    AttackTrigger = 1;

}



void OnTriggerExit()

{

    AttackTrigger = 0;

}

What can i do to ensure that it is sticking to the y axis at all times

unity c#

share|improve this question

edited 19 hours ago

Alex Myers

2458

asked 22 hours ago

GurdeepGurdeep

261

New contributor

Gurdeep is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

add a comment | 

$begingroup$

I am using the following code to make a zombie move towards me, but when playing the scene the zombie seems to be moving towards me, but also off the ground and not fixed on the y-axis

 public GameObject ThePlayer;

public float TargetDistance;

public float AllowedRange = 10;

public GameObject TheEnemy;

public float EnemySpeed;

public int AttackTrigger;

public RaycastHit Shot;



void Update()

{

    transform.LookAt(ThePlayer.transform);

    if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out Shot))

    {

        TargetDistance = Shot.distance;

        if (TargetDistance < AllowedRange)

        {

            EnemySpeed = 0.01f;

            if (AttackTrigger == 0)

            {

                //TheEnemy.GetComponent<Animation>().Play("Walking");

                transform.position = Vector3.MoveTowards(transform.position, ThePlayer.transform.position, EnemySpeed);

            }

        }

        else

        {

            EnemySpeed = 0;

            //TheEnemy.GetComponent<Animation>().Play("Idle");

        }

    }



    if (AttackTrigger == 1)

    {

        EnemySpeed = 0;

        //TheEnemy.GetComponent<Animation>().Play("Attacking");

    }

}



void OnTriggerEnter()

{

    AttackTrigger = 1;

}



void OnTriggerExit()

{

    AttackTrigger = 0;

}

What can i do to ensure that it is sticking to the y axis at all times

unity c#

share|improve this question

edited 19 hours ago

Alex Myers

2458

asked 22 hours ago

GurdeepGurdeep

261

New contributor

Gurdeep is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

 public GameObject ThePlayer;

public float TargetDistance;

public float AllowedRange = 10;

public GameObject TheEnemy;

public float EnemySpeed;

public int AttackTrigger;

public RaycastHit Shot;



void Update()

{

    transform.LookAt(ThePlayer.transform);

    if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out Shot))

    {

        TargetDistance = Shot.distance;

        if (TargetDistance < AllowedRange)

        {

            EnemySpeed = 0.01f;

            if (AttackTrigger == 0)

            {

                //TheEnemy.GetComponent<Animation>().Play("Walking");

                transform.position = Vector3.MoveTowards(transform.position, ThePlayer.transform.position, EnemySpeed);

            }

        }

        else

        {

            EnemySpeed = 0;

            //TheEnemy.GetComponent<Animation>().Play("Idle");

        }

    }



    if (AttackTrigger == 1)

    {

        EnemySpeed = 0;

        //TheEnemy.GetComponent<Animation>().Play("Attacking");

    }

}



void OnTriggerEnter()

{

    AttackTrigger = 1;

}



void OnTriggerExit()

{

    AttackTrigger = 0;

}

share|improve this question

edited 19 hours ago

Alex Myers

2458

asked 22 hours ago

GurdeepGurdeep

261

New contributor

Gurdeep is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 19 hours ago

Alex Myers

2458

asked 22 hours ago

GurdeepGurdeep

261

New contributor

Gurdeep is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 19 hours ago

Alex Myers

2458

edited 19 hours ago

Alex Myers

2458

asked 22 hours ago

GurdeepGurdeep

261

New contributor

Gurdeep is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 22 hours ago

GurdeepGurdeep

261

3 Answers
3

active

oldest

votes

7

$begingroup$

The reason this is happening is because Vector3.MoveTowards will move all axes toward the target.

You can specifically exclude changes to the Y axis by creating a new target Vector3 having the Y axis set to the value it should stay at.

transform.position = Vector3.MoveTowards(

    transform.position,

    new Vector3(

        ThePlayer.transform.position.x,

        transform.position.y,

        ThePlayer.transform.position.z

    ),

    EnemySpeed

);

The above code creates a new Vector3 target where the Y axis is the same as the current position instead of the target, preventing Vector3.MoveTowards from changing the Y axis at all.

share|improve this answer

answered 21 hours ago

EstelSEstelS

711

New contributor

EstelS is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  This works perfectly thank you! But when the zombie gets into close contact with me it seems to lean back and fall into the floor (weird), is it possible to state when it gets within a certain distance of me, stop moving towards me?
  $endgroup$
  – Gurdeep
  21 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  Sure, you can use Vector3.Distance(a, b) to check the distance between two objects. docs.unity3d.com/ScriptReference/Vector3.Distance.html
  $endgroup$
  – EstelS
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Is there any benefit to this approach over calculating the move-towards vector as normal and then just maintaining the current Y position during the assignment? i.e. Vector3 moveTowards = Vector3.MoveTowards(transform.position, ThePlater.transform.position, EnemySpeed); transform.position = new Vector3(moveTowards.x, transform.position.Y, moveTowards.z);
  $endgroup$
  – Abion47
  14 hours ago
  

  
  
  
  

add a comment | 

4

$begingroup$

You can break out the Vector3 target parameter of Vector3.MoveTowards to prevent movement on the y-axis. Simply set the y value of the target position to the same y value as the current position. For example:

Vector3 currentPosition = transform.position;

Vector3 targetPosition = new Vector3(ThePlayer.transform.position.x, transform.position.y, ThePlayer.transform.position.z);



transform.position = Vector3.MoveTowards(currentPosition, targetPosition, EnemySpeed);

share|improve this answer

edited 11 hours ago

answered 21 hours ago

Alex MyersAlex Myers

2458

$endgroup$

add a comment | 

1

$begingroup$

The other answers are great. But if you have a RigidBody attached, you can freeze the y rotation via constraints. Then no code change would be necessary.

share|improve this answer

answered 11 hours ago

EvorlorEvorlor

2,41632567

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Except that the current code is moving the object via transform.position, which completely bypasses the Rigidbody and ignores any locking on its axes.
  $endgroup$
  – DMGregory♦
  1 hour ago
  

  
  
  
  

add a comment | 

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7

$begingroup$

The reason this is happening is because Vector3.MoveTowards will move all axes toward the target.

You can specifically exclude changes to the Y axis by creating a new target Vector3 having the Y axis set to the value it should stay at.

transform.position = Vector3.MoveTowards(

    transform.position,

    new Vector3(

        ThePlayer.transform.position.x,

        transform.position.y,

        ThePlayer.transform.position.z

    ),

    EnemySpeed

);

The above code creates a new Vector3 target where the Y axis is the same as the current position instead of the target, preventing Vector3.MoveTowards from changing the Y axis at all.

share|improve this answer

answered 21 hours ago

EstelSEstelS

711

New contributor

EstelS is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  This works perfectly thank you! But when the zombie gets into close contact with me it seems to lean back and fall into the floor (weird), is it possible to state when it gets within a certain distance of me, stop moving towards me?
  $endgroup$
  – Gurdeep
  21 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  Sure, you can use Vector3.Distance(a, b) to check the distance between two objects. docs.unity3d.com/ScriptReference/Vector3.Distance.html
  $endgroup$
  – EstelS
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Is there any benefit to this approach over calculating the move-towards vector as normal and then just maintaining the current Y position during the assignment? i.e. Vector3 moveTowards = Vector3.MoveTowards(transform.position, ThePlater.transform.position, EnemySpeed); transform.position = new Vector3(moveTowards.x, transform.position.Y, moveTowards.z);
  $endgroup$
  – Abion47
  14 hours ago
  

  
  
  
  

add a comment | 

7

$begingroup$

The reason this is happening is because Vector3.MoveTowards will move all axes toward the target.

You can specifically exclude changes to the Y axis by creating a new target Vector3 having the Y axis set to the value it should stay at.

transform.position = Vector3.MoveTowards(

    transform.position,

    new Vector3(

        ThePlayer.transform.position.x,

        transform.position.y,

        ThePlayer.transform.position.z

    ),

    EnemySpeed

);

The above code creates a new Vector3 target where the Y axis is the same as the current position instead of the target, preventing Vector3.MoveTowards from changing the Y axis at all.

share|improve this answer

answered 21 hours ago

EstelSEstelS

711

New contributor

EstelS is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  This works perfectly thank you! But when the zombie gets into close contact with me it seems to lean back and fall into the floor (weird), is it possible to state when it gets within a certain distance of me, stop moving towards me?
  $endgroup$
  – Gurdeep
  21 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  Sure, you can use Vector3.Distance(a, b) to check the distance between two objects. docs.unity3d.com/ScriptReference/Vector3.Distance.html
  $endgroup$
  – EstelS
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Is there any benefit to this approach over calculating the move-towards vector as normal and then just maintaining the current Y position during the assignment? i.e. Vector3 moveTowards = Vector3.MoveTowards(transform.position, ThePlater.transform.position, EnemySpeed); transform.position = new Vector3(moveTowards.x, transform.position.Y, moveTowards.z);
  $endgroup$
  – Abion47
  14 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

The reason this is happening is because Vector3.MoveTowards will move all axes toward the target.

You can specifically exclude changes to the Y axis by creating a new target Vector3 having the Y axis set to the value it should stay at.

transform.position = Vector3.MoveTowards(

    transform.position,

    new Vector3(

        ThePlayer.transform.position.x,

        transform.position.y,

        ThePlayer.transform.position.z

    ),

    EnemySpeed

);

The above code creates a new Vector3 target where the Y axis is the same as the current position instead of the target, preventing Vector3.MoveTowards from changing the Y axis at all.

share|improve this answer

answered 21 hours ago

EstelSEstelS

711

New contributor

EstelS is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

transform.position = Vector3.MoveTowards(

    transform.position,

    new Vector3(

        ThePlayer.transform.position.x,

        transform.position.y,

        ThePlayer.transform.position.z

    ),

    EnemySpeed

);

share|improve this answer

answered 21 hours ago

EstelSEstelS

711

New contributor

EstelS is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 21 hours ago

EstelSEstelS

711

New contributor

EstelS is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 21 hours ago

EstelSEstelS

711

4

$begingroup$

You can break out the Vector3 target parameter of Vector3.MoveTowards to prevent movement on the y-axis. Simply set the y value of the target position to the same y value as the current position. For example:

Vector3 currentPosition = transform.position;

Vector3 targetPosition = new Vector3(ThePlayer.transform.position.x, transform.position.y, ThePlayer.transform.position.z);



transform.position = Vector3.MoveTowards(currentPosition, targetPosition, EnemySpeed);

share|improve this answer

edited 11 hours ago

answered 21 hours ago

Alex MyersAlex Myers

2458

$endgroup$

add a comment | 

4

$begingroup$

You can break out the Vector3 target parameter of Vector3.MoveTowards to prevent movement on the y-axis. Simply set the y value of the target position to the same y value as the current position. For example:

Vector3 currentPosition = transform.position;

Vector3 targetPosition = new Vector3(ThePlayer.transform.position.x, transform.position.y, ThePlayer.transform.position.z);



transform.position = Vector3.MoveTowards(currentPosition, targetPosition, EnemySpeed);

share|improve this answer

edited 11 hours ago

answered 21 hours ago

Alex MyersAlex Myers

2458

$endgroup$

add a comment | 

$begingroup$

You can break out the Vector3 target parameter of Vector3.MoveTowards to prevent movement on the y-axis. Simply set the y value of the target position to the same y value as the current position. For example:

Vector3 currentPosition = transform.position;

Vector3 targetPosition = new Vector3(ThePlayer.transform.position.x, transform.position.y, ThePlayer.transform.position.z);



transform.position = Vector3.MoveTowards(currentPosition, targetPosition, EnemySpeed);

share|improve this answer

edited 11 hours ago

answered 21 hours ago

Alex MyersAlex Myers

2458

$endgroup$

Vector3 currentPosition = transform.position;

Vector3 targetPosition = new Vector3(ThePlayer.transform.position.x, transform.position.y, ThePlayer.transform.position.z);



transform.position = Vector3.MoveTowards(currentPosition, targetPosition, EnemySpeed);

share|improve this answer

edited 11 hours ago

answered 21 hours ago

Alex MyersAlex Myers

2458

answered 21 hours ago

Alex MyersAlex Myers

2458

answered 21 hours ago

Alex MyersAlex Myers

2458

1

$begingroup$

The other answers are great. But if you have a RigidBody attached, you can freeze the y rotation via constraints. Then no code change would be necessary.

share|improve this answer

answered 11 hours ago

EvorlorEvorlor

2,41632567

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Except that the current code is moving the object via transform.position, which completely bypasses the Rigidbody and ignores any locking on its axes.
  $endgroup$
  – DMGregory♦
  1 hour ago
  

  
  
  
  

add a comment | 

1

$begingroup$

The other answers are great. But if you have a RigidBody attached, you can freeze the y rotation via constraints. Then no code change would be necessary.

share|improve this answer

answered 11 hours ago

EvorlorEvorlor

2,41632567

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Except that the current code is moving the object via transform.position, which completely bypasses the Rigidbody and ignores any locking on its axes.
  $endgroup$
  – DMGregory♦
  1 hour ago
  

  
  
  
  

add a comment | 

$begingroup$

The other answers are great. But if you have a RigidBody attached, you can freeze the y rotation via constraints. Then no code change would be necessary.

share|improve this answer

answered 11 hours ago

EvorlorEvorlor

2,41632567

$endgroup$

share|improve this answer

answered 11 hours ago

EvorlorEvorlor

2,41632567

answered 11 hours ago

EvorlorEvorlor

2,41632567

answered 11 hours ago

EvorlorEvorlor

2,41632567