Hi,

In this simple code I expect that the rectangle's colour keeps changing indefinetly. For some reason that's not happening. It changes the colour once and get's freezed on that one.

Code:

void setup() {  
size(200,200);
rectMode(CENTER);
}



void draw() {  
  background(0);  
  fill(255,0,0);
  rect(100,100,50,50);
  delay(200);
  background(0); 
  fill(0,0,255);
  rect(100,100,50,50);
  delay(200);
} 
  

I can`t find the reason why the code doesn't keep looping inside "draw()".

I need to figure this out because I'm having problems with a code that has to display different images depending on the information recieved from the serial port. I realized that after loading and displaying an image, the screen does not refresh (the next image is not displayed). I'm sure it's a display problem because the event that triggers the image change is working fine.

I hope that someone can help me with this.

Thanks!

Martin

The reason is that what you see on screen is the result of the whole draw() function: so you will see the total result of all drawing actions after a 400ms delay...
sw01 gave the right way to do this.