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Question by Ennkhy · Jan 07, 2016 at 10:28 PM · movementrigidbody2dupleftright

Rigidbody2d Moving up and Down but not left and right

Hello guys,

Fresh unity user here,

My RigidBody2D (pong game) is correctly moving up and down, but not left and right. The code seems simple, but i can't understand why it's not moving.

I have set the controls to the correct KeyCode.

Can you explain what mistake i have made?

There is my code :

 var moveUp : KeyCode; 
 var moveDown : KeyCode;
 var moveLeft : KeyCode;
 var moveRight : KeyCode;
 
 var speed : float = 12;
 
 function Update () {
 
     if (Input.GetKey(moveUp))
     {
         GetComponent.<Rigidbody2D>().velocity.y = speed;
     }
     else if (Input.GetKey(moveDown))
     {
         GetComponent.<Rigidbody2D>().velocity.y = -speed;
     }
     else if (Input.GetKey(moveLeft))
     {
         GetComponent.<Rigidbody2D>().velocity.x = -speed;
     }
     else if (Input.GetKey(moveRight))
     {
         GetComponent.<Rigidbody2D>().velocity.x = speed;
     }
     else
     {
         GetComponent.<Rigidbody2D>().velocity.y = 0;
     }
 
     GetComponent.<Rigidbody2D>().velocity.x = 0;
 
 }

Thanks a lot.

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avatar image DroidifyDevs · Jan 07, 2016 at 10:35 PM 0
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Well you used GetComponent.().velocity.y = 0;` So why didn't you use GetComponent.().velocity.x ?

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Answer by mikelortega · Jan 07, 2016 at 10:33 PM

You are resetting x velocity to 0 in line 31. So, you set speed correctly, but then you set it to 0 in the end.

Somet$$anonymous$$ng like t$$anonymous$$s would be better:

 function Update ()
 {
  
      GetComponent.<Rigidbody2D>().velocity.y = 0;
      GetComponent.<Rigidbody2D>().velocity.x = 0;
 
      if (Input.GetKey(moveUp))
          GetComponent.<Rigidbody2D>().velocity.y = speed;
 
      if (Input.GetKey(moveDown))
          GetComponent.<Rigidbody2D>().velocity.y = -speed;
 
      if (Input.GetKey(moveLeft))
          GetComponent.<Rigidbody2D>().velocity.x = -speed;
 
      if (Input.GetKey(moveRight))
          GetComponent.<Rigidbody2D>().velocity.x = speed;
 
  }
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