speed += speedGain while holding button?

Unity Engine
1

I’m trying to increase the speed of my character by an amount as long as space (or touch) is held. The following does not seem to work. I have to spam the space bar to see any speed increase.

if(Input.GetButtonDown("Jump")){

speed += speedGain;

}

Any help would be greatly appreciated, thank you!

2 
if (Input.GetButton("Jump")) {
    speed += speedGain * Time.deltaTime;
}

–Eric

3

Multiply speedGain by Time.deltaTime, too.

http://unity3d.com/support/documentation/ScriptReference/index.Keeping_Track_of_Time.html

Edit: The result will be what Eric gave you. :wink:

4

speed = speed + amount;
or
speed ++; // +1

5

Ah, it was checking if i pushed it down on that frame. And I always forget deltaTime… I’m a doofus, thank you guys!

6

That won’t work, because it will be framerate-dependent.

–Eric

7

Sorry, i didn’t read his question… and only looked at his script.