Randomly choosing between 3 options

Question

Basically i want the character to either jump up and left, up and right or just straight up.

Sorry if it' simple to do, i'm new to this

Here is my code so far:

 if (Random.Range(0, 2) == 0)
                 rb.AddForce(Vector2.up * upforce, ForceMode2D.Impulse);
                 rb.AddForce(Vector2.left * directionforce, ForceMode2D.Impulse);
             else
                 rb.AddForce(Vector2.up * upforce, ForceMode2D.Impulse);
                 rb.AddForce(Vector2.right * directionforce, ForceMode2D.Impulse);
             else
                 rb.AddForce(Vector2.up * upforce, ForceMode2D.Impulse);

Answer 1

Best Answer

Answer by Chikari · Feb 13, 2017 at 01:57 PM

     switch(Random.Range(0,3))
     {
     case 0:
         rb.AddForce(Vector2.up * upforce, ForceMode2D.Impulse);
         rb.AddForce(Vector2.left * directionforce, ForceMode2D.Impulse);
         break;
     case 1:
         rb.AddForce (Vector2.up * upforce, ForceMode2D.Impulse);
         rb.AddForce (Vector2.right * directionforce, ForceMode2D.Impulse);
         break;
     case 2:
         rb.AddForce (Vector2.up * upforce, ForceMode2D.Impulse);
         break;
     }

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PizzaPie · Feb 13, 2017 at 03:33 PM 0

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Random.Range should be Random.Range(0,3) if you want it to reach the case 2. (int)Random.Range will exclude the max value.

Chikari · Feb 13, 2017 at 03:42 PM 0

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No. See the documentation: "Returns a random float number between and $$anonymous$$ [inclusive] and max [inclusive]. "

It's odd, but correct.

PizzaPie Chikari · Feb 13, 2017 at 03:56 PM 1

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For floats yes but not for integers, scroll down to the doc. In this case it is an int so it will exclude the max, if it was float it would hardly ever reach any case.

Chikari PizzaPie · Feb 13, 2017 at 03:59 PM 1

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Thanks for the heads up! I have adjusted my answer.

Randomly choosing between 3 options

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