Ball breaker goes to game over scene

[Rohit_Keswani]

Hello, I am building the ball breaker game after seeing videos through udemy. I am still at level 1, I have created paddle and ball. Ball moves upon clicking but if I don’t do anything on the screen, it goes to Game Over scene. Is it normal behavior ? Or am I missing something here. Pls help.

[Nina]

Hi Rohit,

Welcome to our community!

Unity’s physic engine is highly optimised meaning it checks the position of a collider occasionally only. You could try to set the Collision Detection mode of the ball’s Rigidbody2D to “Continuous”. In most cases, that fixes the problem.

In our particular case, the problem is that we manipulate the transform.position via code and override the calculated values of the physics engine. It is likely that the position of the ball does not match the position of the collider anymore.

A better solution would be to disable the physics simulation for the ball while manipulating the position via code.

void Start ()
{
  paddleToBallVector = transform.position - paddle1.transform.position;
  myAudioSource = GetComponent<AudioSource>();
  myRigidBody2D = GetComponent<Rigidbody2D>();
  myRigidBody2D.simulated = false; // <-------- add this
}
 
private void LaunchOnMouseClick()
{
  if (Input.GetMouseButtonDown(0))
  {
    hasStarted = true;
    myRigidBody2D.velocity = new Vector2(xPush, yPush);
    myRigidBody2D.simulated = true; // <-------- add this
  }
}

I hope that makes sense.

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