Power up weapon shot before releasing and resetting power

Question

What would be the code so that holding down a button will charge up shot,then releasing that button fires the charged shot and resets the charge; as used in games like r-type?

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Answer by Peter G · Aug 13, 2010 at 04:30 PM

I would do something like this. It starts charging when the user clicks the fire button and will release when they let go.

var chargeLevel : float = 0; //Don't change this in the inspector. var chargeSpeed : float = 1; //Default, the charge will go up 1 per second var isCharging = false;

function Update () {
     if (Input.GetButtonDown("FireButton")) { //Did the user click?
          if(!isCharging) { //Some what unnecessary due to the way the Input is
          // setup
               isCharging = true;
               CalculateCharge();
          }
     }
}

function CalculateCharge () {
     while(Input.GetButton("FireButton")) { //Add to the charge as long as the
     // user is holding the button
          chargeLevel += Time.deltaTime * chargeSpeed;
          yield; //Will cause a crash without this.
      }

  //Fire Projectile
  // Reset the vars.
  chargeLevel = 0.0;
  isCharging = false;

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maggot · Aug 13, 2010 at 05:06 PM 0

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Yes, thats what i was getting - crashes with while loops, thanks

Selocanus · Jul 20, 2020 at 07:08 AM 0

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Hey dude thanks for the idea. I appreciate that :thumbs_up:

Power up weapon shot before releasing and resetting power

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