addforce2D is not applying negative vector

Question

Hi i'm making a pong game where the ball would randomly move left or right at the start of the game. The script follows:

 function Start () {

 var randomNumber = Random.Range(0f,1f);

 if(randomNumber<=0.5){
 rigidbody2D.AddForce(new Vector2(80,10));
 }

 else{
 rigidbody2D.AddForce(new Vector2(-80,-10));
 }

the script works fine, and has a 50/50 chance on going into if or else clause, but when it goes through the else clause, the ball doesn't move left(i.e vector2(-80,10)), but moves right(i.e. vector2(80,10)). i'm following a tutorial for Unity 4.3, but coding in Unity 4.6. Was there any changes during versions?

Answer 1

Answer by Limesta · Jan 02, 2015 at 07:43 AM

Hi there! I think your issue is simple, try this code:

 function Start () {
  
  var randomNumber = Random.Range(0f,1f);
  
  Vector2 force = new Vector2(80, 10);
 
  if(randomNumber<=0.5){
  rigidbody2D.AddForce(force);
  }
  
  else{
  rigidbody2D.AddForce(force * -1);
  }

Add comment · Share

addforce2D is not applying negative vector

1 Reply

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions