Time a method?

Programming Questions

spiroz

in Programming Questions • 6 months ago

The request is this:

Everytime I call a method, i want to do sth for a specific ammount of time.

Ex1. Everytime i move the mouse, it appears a text saying "hallo", while i am moving it and it desappears 5 seconds after i left the mouse.

Ex2. if i mouse over a specific area, the background changes colour for some seconds and then restores its previous colour.

(I mean the mouse is just a condition and the result lasts for a specific amount of time).

How do i measure the time every time a codition is on, a method is activated and so on...?

I ve tried sth like:

void printHelloFor4second( ) {

while(millis( ) < 4000){

text("Hello", width/2, height/2);

}

But while loop causes a lot of problems either doesn' t work, or even processing crashes..

Replies(3)

PhiLho

Re: Time a method?

6 months ago

It is not simple in Processing, but it can be managed.
See the following articles:

and more in the Technical FAQ on the wiki.

GoToLoop

Re: Time a method?

6 months ago

Perhaps these posts can help ya a bit:

http://forum.processing.org/topic/timer-switch-on-and-off

http://forum.processing.org/topic/generating-time-specifies-flashes

v.k.

Re: Time a method?

6 months ago

something like this?

               
                int timeMoved;
                int period = 4000;
                

                void setup(){
                timeMoved = -period ;
                }
                

                void draw(){
                  background(0);
                  showText();
                }
                

                void mouseMoved(){
                  timeMoved = millis();
                }
                

                void showText(){
                  int elapsed = millis() - timeMoved;
                  if(elapsed < period){
                    text(period - elapsed, 10, height/2 + 20);
                    text("hello", 10, height/2);
                  }
                }

while is a trap... :)

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Time a method?

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