How to reload a background using millis()

Jamiel

Hello All,

Is it possible to bring the background forward and clear the screen? effectively I want blank canvas for everything apart from the background. I also want this to be timed, I am aware of Millis() but lack the knowledge to where to put the lines of code.

Thank you!!

:)>- :)>- :)>- :)>-

int frames = 10; 

PImage bg; 

PGraphics pg[] = new PGraphics[frames];

void setup() {

size(1024, 768);

 bg = loadImage("003-2.jpg");

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

pg[i] = createGraphics(width, height);

pg[i].beginDraw();

pg[i].background(bg);

pg[i].stroke(255);

pg[i].strokeWeight(3);

pg[i].endDraw();

}

 }

void draw() {

int currFrame = frameCount % frames; // 0 .. 19

if(mousePressed) {

pg[currFrame].beginDraw();

pg[currFrame].line(mouseX, mouseY, pmouseX, pmouseY);

pg[currFrame].endDraw();

  }

 image(pg[currFrame], 0, 0);

   }

PhiLho

I fear I don't fully understand your question.
Perhaps you just need to call background() at the sketch level?

Jamiel

Hi PhiLho

I'm afraid I am a bit of a novice. I'm not quite sure where to put that line of code, I've tried repeatedly.

Also Is there anyway I can do that at timed intervals using millis()?

_vk

You can search forum for "timing" or millis().

this is an example I wrote for some other question:

PFont font;
String time = "000";
int initialTime;
int interval = 1000;
color c = color(200);


void setup()
{
  size(300, 300);
  font = createFont("Arial", 30);
  background(255);
  fill(0);
  initialTime = millis();
}

void draw()
{
  background(c);
  if (millis() - initialTime > interval)
  {
    time = nf(int(millis()/1000), 3);
    initialTime = millis();
  }

  text(time, width/2, height/2);
  if (int(time) % 10 == 0){
    c = color(random(255));
  }
}

I didn't understand the rest of your question. :)