Hi,

I hope someone can anser my question, cos I need this for a project I have to hand in on Friday and I don't have the slightest idea what I'm doing.

What I want is that the rectangles "glow" when a key is pressed and that they do this randomly, but if one rectangle is glowing, the others don't. So I've done this with a switch and an array to randomly access the states.

This is my code:

char State;
int rectWidth = 100;
int rectHeight = 100;
int glow = 5; //setting strokeWeight when rectangle is the stimulus (thus glowing)
int noGlow = 2; //strokeWeight when rectangle is not the stimulus

/*
States:
U = upRight
D = downRight
L = upLeft
M = downLeft
*/


void setup(){
  size(700,700);
  background(0);
  State = 'U';
}
//four rectangles which can glow or not glow
void Rect(boolean upRight, boolean downRight, boolean upLeft, boolean downLeft){
  stroke(0,255,0);
  noFill();
  rectMode (CENTER);
 
  if(upRight){ //if the upRight rectangle is the stimulus, it is glowing, otherwise it's not
    strokeWeight(glow);
   }
   else{
     strokeWeight(noGlow);
   }
   rect(550,150,rectWidth,rectHeight); //rectangle in the up right corner
 
  if(downRight){ //if it is the stimulus, it's glowing
    strokeWeight(glow);
  }
  else{
    strokeWeight(noGlow);
  }
  rect(550,550,rectWidth,rectHeight); //rectangle in the down right corner
 
  if(upLeft){ //same here, if it's the stimulus, it's glowing
    strokeWeight(glow);
  }
  else{
    strokeWeight(noGlow);
  }
  rect(150,150,rectWidth,rectHeight); //rectangle in the up left corner
 
  if(downLeft){ //and again, if stimulus --> glowing
    strokeWeight(glow);
  }
  else{
    strokeWeight(noGlow);
  }
  rect(150,550,rectWidth,rectHeight); //rectangle in the down left corner
}

//array for the states, so that they can be accessed randomly
char [] states = {'U','D','L','M'};

//cycle through the glowing rectangles randomly on keyPress
void keyPressed(){
  switch(State){
    case 'U':
    State = states[int(random(0,4))];
    println("upRight to downRight");
    break;
    case 'D':
    State = states[int(random(0,4))];
    println("downRight to upLeft");
    break;
    case 'L':
    State = states[int(random(0,4))];
    println("upLeft to downLeft");
    break;
    case 'M':
    State = states[int(random(0,4))];
    println("downLeft to upRight");
    break;
  }
}
 
  //assign to the states which argument is true
void draw(){
  if(State == 'U'){
    Rect(true,false,false,false);
  }
  if(State == 'D'){
    Rect(false,true,false,false);
  }
  if(State == 'L'){
    Rect(false,false,true,false);
  }
  if(State == 'M'){
    Rect(false,false,false,true);
  }
}

But somehow, the rectangles don't stop to glow, so I guess something is wrong with my "else"condition.
I really hope someone can help me! I'm getting kinda desperate here!
Thanks in advance!
Greets, Isabel