How can I do timing animations?

NaeimGhomorlou

Hi there, I would know how can I do timing animations in processing. For example: in an animation, 10 seconds after the sketch has been run, a CAR comes in from the left side of the screen and goes out from right . Then, at 20th second, a PLANE comes in from the left side and goes out from right . At 30th second, BLUE car comes in and goes out . And so on....

Chrisir

you can use millis()

Store the millis at end of setup() in a var startTime

Then calculate the time since that:

passedTime = startTime - millis() ;

if this value is >= 10 etc. trigger the event

NaeimGhomorlou

Thanks Frank, but could you show me in a simple example with code

Ater

int startTime;
int x = -50;

void setup() {    
size(250, 250);
startTime = millis();
}

void draw() { 
background(0);
if (millis() - startTime > 10000){
    animation();
    } 

    println(millis());
}

void animation(){
rect(x, height/2, 50, 50);
x+=5;
}

NaeimGhomorlou

Thanks for the answer Ater, but after 10 second, how can I cancel this loop, and for example, at the 11th second an ellipse come in ?

Chrisir

You could make an array of objects TimeEvent - a class which you then have to write

Each object holds when to start and when to stop and what

Ater

Just have void animation2() and do the same, if you want to stop previous animation on 11s second, line 11 should be if (millis() - startTime > 10000 && millis() - startTime < 11000)

GoToLoop

https://forum.Processing.org/two/discussions/tagged/timertask

NaeimGhomorlou

Thanks a lot guys