Instructions per frame

Dandruff · 04-14-2011 04:15 AM

I noticed that instructions ran faster/slower depending on the fps. How can i make it so stuff is called once a second/few milliseconds instead of per frame?

Example: A button is clicked and the y of a window increases (like an animated drop down menu) - called per frame:

Code:

...gui_window->size().y+dropspeed...

The menu will either get bigger at the intended speed (based on the fps i got) or get bigger, slower (on lower fps). Any ideas?

Driklyn · 04-14-2011 04:53 AM

Use Time.d(), not frames. For instance:

Code:

Flt time = 0;

void Update() {

    time += Time.d();

    if (time >= 1.0f) {

        // one second has occurred...

        time = 0;

    }

}

Dandruff · 04-29-2011 04:27 AM

Thanks! I tried it but i don't know how make use of that to make the speed of things go at the intended speed, but it will be useful for later. I came up with something like this:

Code:

Flt lagscale;

if(Time.d()>0.007) //0.007 is target frame time duration

lagscale=Time.d()-0.007;

...

speedofwhatever+=speedofwhatever*lagscale;

but i would have to do this for everything that needs to be scaled. Is there another way to do this? Like input.turn.x=Kb.b(KB_Q)-Kb.b(KB_E); - no matter how laggy the game is, it always turns at the same speed.

**Esenthel** · 04-29-2011 11:48 AM

pos+=vel*Time.d();

Driklyn · 04-29-2011 11:40 PM

(04-29-2011 04:27 AM)Dandruff Wrote: Thanks! I tried it but i don't know how make use of that to make the speed of things go at the intended speed, but it will be useful for later.

Haha, yes, do what Esenthel posted. I thought you needed a timer by the way this question is worded: "How can i make it so stuff is called once a second/few milliseconds instead of per frame?"

Dandruff · 04-30-2011 12:30 AM

lol, yeah i don't know why i worded it that way either. Thanks for it though, im certain i would have made another topic sooner or later asking about making a timer smile

edit: works fine esenthel, thanks

Instructions per frame
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