Fast-forward?

Programming Questions

macko123

in Programming Questions • 2 years ago

How would I implement a fast-forward into my sketch, without losing data? I can't just up the FrameRate because it's running at around 30fps and the max it can run is around 45-50fps, which isn't even 2x. I really need a 4x speed.

I can't see how this is possible, unless I have a variable that makes everything 4x it's original value, but then that would mean losing a lot of data, ie. an 'if (var == 0)', when 'var--;' is running every frame, would end up missing a lot if var is dropping by 4 instead of 1 each frame. Any ideas?

Replies(4)

PhiLho

Re: Fast-forward?

2 years ago

It strongly depends on your sketch... What you do there. In most cases, it is hard to impossible to do...

nardove

Re: Fast-forward?

2 years ago

How about changing your animation to time-based animation, this way you are not tied to the frame rate and also allows you to adjust the time step to increase or decrease

deceaseds..

Re: Fast-forward?

2 years ago

void draw(){

int gamespeed=4;

for(int i=0; i<gamespeed; i++){

//put your sketch stuff here

}

This will run your sketch /gamespeed/ times per frame.

Displaying our images usually uses most of our processing power. So compress that, by running the display after the gamespeed loop, basically a frameskip (sequentially) but the user will still see 30fps animation.

example:

void draw(){

int gamespeed=4;

for(int i=0; i<gamespeed; i++){

for(int i=0; i<Objects.length; i++){

Objects[i].run();

}

}//end gamespeed loop

for(int i=0; i<Objects.length; i++){

Objects[i].display();

}

}//end draw

i've used this in games and it works beautifully.

macko123

Re: Re: Fast-forward?

2 years ago

Sounds like this will work quite well.

What happens if I have say, an animation that displays for only 3 frames? 1/4 times it won't display at all, should I just make sure that everything displays for at least one frame at the highest speed?

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