Add value once when Trigger is pressed

Question

I'm new to Unity and C# and currently playing around with character movements. I want my character to run when pressing the right trigger of my xbox one controller. I only have following problem: when pressing the right trigger, my running speed is added infinitely; when releasing the right trigger the running speed is subtracted infinitely. How can I apply my running speed to my character only when the right trigger is pressed? (Meaning as soon as I release the Trigger the speed is my 'normal speed').

This is the code:

 if (Input.GetAxis("Run") == 1)
         {
             speed += running;
         }
 
 if (Input.GetAxis("Run") == -1)
         {
             speed -= running;
         }

Answer 1

Answer by Deadog103 · Mar 29 at 10:28 PM

Its because you are constantly adding/subtracting the speed value whenever you use the triggers. Try making a variable that keeps the original speed then make speed equal that.

  public float speed;
     float origSpeed;
     
     start()
     {
     origSpeed = speed;
     }
     
     //then in your IF statement put this:
 if (Input.GetAxis("Run") == 1)
          {
              speed = running + origSpeed;
          }
  
  if (Input.GetAxis("Run") == -1)
          {
              speed = running - origSpeed;
          }

I hope that helps

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Add value once when Trigger is pressed

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