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Question by Wuagliono98 · Jun 20, 2020 at 02:29 PM · physics3drandomtrajectory

How to generate a random trajectory when the ball is kicked ?

I'm trying to do a simple scene where a ball is kicked at the press of space bar.

Now I have this code that use AddForce() to "kick" the ball with a random direction, but I'm not sure that is the correct solution because I set these parameters by trying and trying again setting them gradually.

There is the code:

 private void FixedUpdate()
          {
              float randomY = Random.Range(0.1f, 1.3f);
              float randomX = Random.Range(-0.2f, 0.2f);
              Vector3 direction = new Vector3(randomX,randomY,1);
      
              if (Input.GetButtonDown("Jump"))
                  _ballRb.AddForce(direction * kickForce,ForceMode.Impulse);
           }

Its possible to create a sort of cone in which a trajectory is randomly generate?

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Answer by AZOM2004 · Jun 20, 2020 at 03:13 PM

If you don’t want it so you have to try and adjust, it it because the “triangle of random” will be arranged in a different way (the ball further, the net wider...) because if that’s the case, I think you could use trigonometry to get the angles of the limits of the net. I am not very good at Unity and C#, but I can help with ideas...

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