i want the camera stop follwing my player only on y axis when he jumps...

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Hi everyone. Im new to scripting. Im writing this code for my player. It moves great, it jumps well, and ive attached the camera to my player to be a child of it, but the problem is that i dont want the camera to follow the player when he jumps. Actually i want the camera to remain on where it is right now on its y axis but still be a child of my player and follow it on x axis and i have to mention that its a 2d game and ive attached this script to my player. I really need your help. tnxx alot...

 var playerSpeed : int;
 var jumpHeight  : int;
 
 function Update () 
 {
     //1- childing the main camera to the player, so that it will follow the player transform.position
     // getting the transform of the main camera and put it in a new var.
     var cameraTransform = Camera.main.transform;
     
     // making the camera child of the player.
     cameraTransform.parent = transform; 
     
     //2- moving the player...
     // amount to move the player 
     amtToMove = playerSpeed * Input.GetAxis("Horizontal") * Time.deltaTime;
     
     // transform/translate the movement of the player...
     transform.Translate(Vector3.right * amtToMove);
     
     //3- player jump
     // player can countinusly jump when you hold the space. if its transform position in y axis is equal to 0.73(on the ground)
     if ( Input.GetKey("space") && transform.position.y == 0.73)
     {
         amtToJump = jumpHeight + Time.deltaTime;
         transform.Translate(Vector3.up * amtToJump );
     }
  
     // now here i want to add something that can prevent the camera to follow my player when he jumps! and i need your help :(
 
 }

Answer 1

Best Answer

Answer by shahinexir · Aug 10, 2012 at 08:28 PM

oh here we go :D i fixed it myself! :P i just added this function out of my update function after parenting the camera to the player,and just changed the value to what works...easyy :

 function LateUpdate()
 {
     Camera.main.transform.position.y = 2.77;  
 }

now theres another problem! i want the player rotate when i press for example left arrow,and countinue moving to the left direction.just like old super mario movement . when u press left it would rotate and walk,and when u hold right arrow it could walk at the opposit direction.now i want something like that.i wrote some roatation code but when i hold the left or right arrow it just rotates and stops moving.and also my camera is a child of my player,and when player rotates the camera rotates too! i want to stop that too. really need your helpp. tnx

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BLarentis · Aug 11, 2012 at 03:11 AM 0

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$$anonymous$$y answer will resolve the problem of the camera rotation. I'll make some test here and soon i'll post the code to rotate the character along his movement direction.

BLarentis · Aug 11, 2012 at 03:23 AM 0

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Ok, use this code(if the script that control the character is attached into the player) when you press the right arrow: this.gameObject.transform.rotation = Quaternion.Euler(0,0,0); and use this one when you press the left arrow: this.gameObject.transform.rotation = Quaternion.Euler(0,180,0);

Hope it helps. Take care

Answer 2

Answer by BLarentis · Aug 10, 2012 at 08:31 PM

Hello, what you can do is take the camera out of the player. Don't put it as a child of player. Inside the camera you can put a script that will follow the player only in X axis:

C#- Script

 using UnityEngine;
 using System.Collections;
 
 public class FollowPlayer : MonoBehaviour {
  
  public GameObject player;
  
  // Update is called once per frame
  void Update () {
  
  this.gameObject.transform.position = new Vector3(player.gameObject.transform.position.x,this.gameObject.transform.position.y,this.gameObject.transform.position.z);
  
  }
 }

Javascript:

 public var player : GameObject;
 
 function Update () {
 
  this.gameObject.transform.position = new Vector3(player.gameObject.transform.position.x, this.gameObject.transform.position.y, this.gameObject.transform.position.z);
 
 }

After you drag the script inside the camera, just reference the player object.

Hope this helped you. Take care!

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Bunny83 · Aug 11, 2012 at 03:46 AM 0

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Uhmm... Don't you think you can make it a bit more complicated?

The "this" keyword is redundant and is only required in some really rare cases. As long as you are within the class scope you can access any method, property or variable.

Every component has access to the shortcut properties like ".transform", so there's no need to use gameObject

Vector3 is a struct and therefore a value-type, you can simply assign Vector3 values to other variables:

Your player variable already points the the gameObject, so there it's again useless.

 transform.position = player.transform.position;

Finally you should use variable types that are most useful for your usage. GameObject is not a very useful type since you can't do much with it. When you just need the Transform component of a GameObject, make the variable a Transform, so you can directly access the position.

 public Transform player;
 
 void Update()
 {
     transform.position = player.position;
 }

Btw: No one prevents you from doing something like that:

 transform.gameObject.transform.gameObject.transform.transform.position

But it doesn't make much sense and just slows everything down.

BLarentis · Aug 11, 2012 at 03:54 AM 0

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Yep, i know about the transform.gameObject.transform.gameObject.transform.transform.position i just wanted to specify the most so shahinexir can understand what kind of value i'm acessing. And your method of transform.position = player.position wont prevent the camera to follow while the player jumps, that its the problem that he is facing. Thats why i specified the x,y,z parameters into a new Vector3, so that i can track the player in x, and keep the camera position in y and z.

Bunny83 · Aug 11, 2012 at 04:14 AM 0

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Yes, sorry, but those little differences in these long lines can be easily skipped by accident.

In UnityScript you can simply do it like this:

 transform.position.x = player.transform.position.x;

However this won't work in C#.

btw:
I don't get why the more complicated and slower way should be easier to understand... ;)

Paulo-Henrique025 · Aug 22, 2012 at 09:50 PM 0

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Hey @Bunny83 can you confirm that accessing a variable this way: this.gameobject.transform.position is slower than just doing transform.position?

I prefer to use the this.gameobject or this.transform to access my stuff so the code gets more readable.

Yllier · May 07, 2014 at 03:41 PM 0

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The script that you posted was in Update. This caused jittery movement, most camera scripts should be put in LateUpdate.

Answer 3

hey guys realy apreciate for your helps but i think im done with the camera section,as i mentiond earlear by using the late update function it works well right now.

AND also tnx alot BLarentis but still it doesnt work :(( let me give u my latest player script:

var playerSpeed : int;

var jumpHeight : int;

function Update () {

//1- childing the main camera to the player, so that it will follow the player transform.position

// getting the transform of the main camera and put it in a new var.

var cameraTransform = Camera.main.transform;

// making the camera child of the player.

cameraTransform.parent = transform;

//2- moving our player...

// amount to move the player

  amtToMove = playerSpeed * Input.GetAxis("Horizontal") * Time.deltaTime;

// transform/translate the movement of our player...

  transform.Translate(Vector3.right * amtToMove);

//------------------------------------------------------------------------

//3- player rotation...!

  if (Input.GetKey("left") || Input.GetKey("a"))
    {
        this.gameObject.transform.rotation = Quaternion.Euler(0,0,0); 
    }
         
  if (Input.GetKey("right") || Input.GetKey("d"))
    {
        this.gameObject.transform.rotation = Quaternion.Euler(0,180,0);
    }

//--------------------------------------------------------------------------

//4- player jump

// player can countinusly jump when you hold the up button. if its transform position in y axis is equal to 0.73(on the ground)

if ( Input.GetKey("up") && transform.position.y == 0.73) {

     amtToJump = jumpHeight + Time.smoothDeltaTime ;
     
     transform.Translate(Vector3.up * amtToJump );
     

   }

}

 //5- camera follow
 
 // this function lets the camera be parented to the player but prevent it from moving along the y axis when the player jumps.

function LateUpdate()

{

Camera.main.transform.position.y = 2.77;

}

now i can move,jump,and the camera works well.but im facing new problems . its been about a day that im thinking to fix this.now i cant rotate, even if i rotate the camera rotates too.but i dont want that happen.and also ive got a cube like wall and i want my player to stop passing through it when it hits the wall.now i have box colider on both my player and wall with is trigger off,and have rigid body with use gravity on and is kinemati off on my player and wall. i think they colide cuz the wall doesnt move but my player suddenly jumps to the sky when it hits the wall! i dont know whats the problem. really need your help.and really apreciate that. and by the way :D forgive me for my bad english ! ;)

Answer 4

Answer by chesterhilly · May 08, 2015 at 01:25 PM

the script I used would always snap to a set position, and I tried many things to fix it. In the end I just tried using this script:

 function LateUpdate () {
     transform.position.y = 3.05;
     transform.position.z = -6.94;
 }

Make sure it is a late update or else it will not work! When the object your the camera is following, the camera should remain in the place you said in the script, but the x axis will still move

(I also made the axis as 3.05 and -6.94 as that because that was the right camera positon)

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i want the camera stop follwing my player only on y axis when he jumps...

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