heres an article on it

thank you for that article, but i think i'll rather
do a workaround.

i now save the frame to a folder. another program watches that folder and prints whatever new is in there.

now i have to figure out how to solve this:

i have two ideas for this:

1. i have 100 images and want to randomly load one of them (when a key is pressed).
but no image should load more than 20 times.

2. i have 2000 images and want to randomly load one of them (when a key is pressed),
but every image should just load once.

which option is more easy?
2000 images are not as easy to handle as 100 images, so i'd prefer to do the first idea.

how should i do that? any ideas?

I can think of the thought process for both methods but somebody here might be able to provide better code:

if you could draw up something? that would be awesome...

my code so far is (it's not that much...)

1. PImage img;
2. 
   
3. void setup() {
4. size (500,800);
5. noLoop();
6. }
7. 
   
8. void draw() {
9. }
10. 
    
11. void keypressed() {
12. img = loadImage("10.jpg");
13. image(img,0,0);
14. stroke(0);
15. fill(150);
16. rect(50,50,75,100);
17. saveframe("outputpic.jpg")
18. noLoop();
19. }

instead of the rectangle, i want to draw a text that says "x/20", where x is the number of the already printed images.

you know what i mean? but i could use the the array fot that, i think...

alright

i tried to come up with something:
but with 10 images and max 5 prints... (for testing)

1. void keyPressed() {
2. in i = int (random(10));
3. if (images[i] < 5) {
4. img = loadImag(i + ".jpg")
5. image(img,0,0)
6. x = Integer.toString(images[i]+1);
7. fill(0);
8. images[i] = images [i] + 1
9. text(x+"/5",100,100);
10. saveFrame("outputjpg.jpg");
11. noLoop;
12. }
13. }

it works fine, but if if() returns false, nothing happens... how does it look for another picture, thats not already has been printed 5 times?

and is there a way to save whats in the array? so when the program crashes, i can restart it and the array was where it was?

thank you.