var numAgents = 2000;

var noiseStrength = 0.009;

var noiseScale = 100;

​

function setup() { 

  createCanvas(windowWidth, windowHeight);

  background(220);

  for (var i = 0; i < numAgents; i = i + 1) {

   agents[i] = new Agent(); 

  }

} 

​

function draw() {

  background(255, 5);

  for (var i = 0; i < numAgents; i = i + 1) {

    agents[i].draw(); 

    agents[i].update(noiseStrength, noiseScale); 

  }

}