We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.
Index › Programming Questions & Help › Programs › simple code, execute an event list
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
simple code, execute an event list (Read 847 times)
a4000
simple code, execute an event list
Aug 22nd, 2009, 9:42am  
i remember old times when Amiga demo rules the scene.

I'd like to create with Processing a script like Amiga demo "Friday at Eight " Polka Brothers, or a script like an intro.


my question is simple, i need a simple code, how i can subdivide event in the same code, example:

moving text, after ended, load an image, after ended , bouncing ball , after ended, draw ellipse?

a sequence of event subdivided by time that i decide for every event,


I have the code for every video effect , but i cannot insert in sequence........


sorry but i'm new in Processing .....

Undecided
Back to top
 
 
blindfish
Re: simple code, execute an event list
Reply #1 - Aug 22nd, 2009, 10:02am  
Can't you simply use a number variable and launch functions/methods based on its current state by checking it with a condition?  

Actually I guess it's not entirely that simple - you'd need to keep a particular function running for a certain amount of time.  You could either use a timer (using millis() ) or a crude counter variable incremented each frame.

This would be one simple implementation (untested):

Code:
int currentFunction = 1;
int counter = 0;

void setup() {
  size(400,300);
  frameRate(30);
}

void draw() {
  switch(currentFunction) {
  case 1: 
    myFunction01();
    break;
  case 2: 
    myFunction02();
    break;
  }

}

myFunction01() {
  // do stuff
  // after approx 3 seconds assuming 30 fps
  if (counter > 90) {
    currentFunction = 2;
    counter = 0;
  }
  counter ++;
}

myFunction02() {
  // stuff
  // after approx 3 seconds assuming 30 fps
  if (counter > 90) {
    currentFunction = 3;
    counter = 0;
  }
  counter ++;
}

// etc...

Back to top
 
Where is the what if the what is in why?
 
PhiLho 
Re: simple code, execute an event list
Reply #2 - Aug 22nd, 2009, 11:12am  
See joining a lot of sketches into one thread too.
Back to top
 
WWW  
a4000
Re: simple code, execute an event list
Reply #3 - Aug 22nd, 2009, 12:50pm  
thanks , very interesting!  i will try to include music and other items inside !  Smiley
Back to top
 
 
Page Index Toggle Pages: 1
‹ Previous Topic | Next Topic ›