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Question by SirMalarkey · Mar 17, 2013 at 09:35 AM · c#functionlog

Debug.Log(); question.

i have a a bool function:

 public bool Jump()
     {
         if (m_Controller.isGrounded)
         {
             m_MotorThrottle += new Vector3(0, MotorJumpForce, 0);
             return true;
         }
         else
         {
             return false;
         }
     }

and im trying to check whether it is true or not with Debug.Log(Jump()); but every time Debug log is called it causes the Jump function to run. and i don't know how to use print. Will print cause the same issue?

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avatar image Chronos-L · Mar 17, 2013 at 09:43 AM 0
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To check whether a function is returning true or false, the function have to be run first to capture the return value.

If you are talking about m_Controller.isGrounded, then just use Debug.Log(m_Controller.isGrounded).

Or are you looking for

 public bool Jump()
     {
        if (m_Controller.isGrounded)
        {
          Debug.Log( true );
          m_$$anonymous$$otorThrottle += new Vector3(0, $$anonymous$$otorJumpForce, 0);
          return true;
        }
        else
        {
          Debug.Log( false );
          return false;
        }
     }
avatar image SirMalarkey · Mar 17, 2013 at 09:46 AM 0
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i want to call debug log in update so it runs every frame.

Edit: nvm i figured it out.

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Answer by Owen-Reynolds · Mar 17, 2013 at 04:03 PM

You certainly can call Debug.Log on functions, for example, Debug.Log(Mathf.magnitude(p1-p2)); or your own: Debug.Log(nearestEnemy())'. Nothing wrong with that.

In formal terms, Jump has a side-effect. It figures out if you can jump and makes you jump. So, of course calling it jumps you. Formal programming says to split into bool canJump() and void doJump(). For longer stuff, that can sometimes help avoid confusion -- is the function computing numbers for me, or doing something?

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avatar image N-8-D-e-v · Jun 05, 2020 at 07:01 PM 0
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This wasn't my solution, but I forgot the double parentheses, so I wrote it as Debug.Log(GroundCheck); and not Debug.Log(GroundCheck()); Dumb, I know, but this could be a common solution for people who aren't used to writing variable methods

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