hi,
i've tried to put into this code a button to turn on/off the connecting lines of the network. it seemed to be very easy in other codes... i have no idea why it is not working in this code......
any ideas??
thx!


int o = 25;

float cDist = 75;      // length of connecting lines

void keyPressed(){  
 if (key=='d'){  
   drawLine=!drawLine;    
 } else {
   drawLine = drawLine;
 }
}



BoidsBlue[] boidsblue = new BoidsBlue[o];

int canvasX = 700;     // canvas size x-direction
int canvasY = 500;     // canvas size y-direction


void setup() {
   
size(canvasX, canvasY);
smooth();



for (int f = 0; f < o; f++){
    boidsblue[f] = new BoidsBlue(random(50,width-50),random(50,height-50)); //initial position of each boid is defined here
}

     
}

void draw() {
background(255);
//stroke(234,45,65);
//strokeWeight(1);


for (int f=0; f<o; f++){
   boidsblue[f].update();
   boidsblue[f].display();
   boidsblue[f].drawLine();
   

}

}







class BoidsBlue{

 float ptsX ;
 float ptsY ;
 float posX;
 float posY;  
 float inc = 0.001;
 


 BoidsBlue(float _ptsX, float _ptsY){
   // We cannot change these variables because we still need the extension of the code later on
   // still don't know what the [i] really means but has been in the original code all the time....
   ptsX = _ptsX;
   ptsY = _ptsY;
   posX = ptsX;
   posY = ptsY;  

 }

 void update(){//added update function, to enable movement [from original code]

   posX = noise(ptsX) * canvasX;
   posY= noise(ptsY) * canvasY;
   ptsX+=inc; //just another way to write ptsX=ptsX+inc
   ptsY+=inc;  


 }


 void display() {
  stroke (random (10,15), random (120,130), random (185,195));
  strokeWeight(0);
  //noStroke();
  ellipseMode(CENTER);
  fill(random (10,15), random (120,130), random (185,195),200);
  ellipse(posX, posY, 16, 16);  
}
 
 void drawLine() {

 for (int f = 0; f < o-1; f++) {
  BoidsBlue bl=boidsblue[f];
     if (dist(posX, posY, bl.posX, bl.posY) < cDist) {
       line(posX, posY, bl.posX, bl.posY);
     }
   }
 }
 

}