3rd homework

let vecLocation = [];

let vecVelocity = [];

let iro = [];

let okisa = [];

const NUM = 100;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  frameRate(60);

  for(let i = 0; i<NUM; i++){

    vecLocation[i] = createVector(width/2, height/2);

    vecVelocity[i] = createVector(random(-10,10), random(-10,10));

    iro[i] = color(random(255),random(255),random(255),200);

    okisa[i] = random(10,50);

  }

}

​

function draw() {

  background(0);

  for(let i = 0; i<NUM; i++){

    vecLocation[i].add(vecVelocity[i]);

    if(vecLocation[i].x > width || vecLocation[i].x < 0){

      vecVelocity[i].x = vecVelocity[i].x * -1;

    }

    if(vecLocation[i].y > height || vecLocation[i].y < 0){

      vecVelocity[i].y = vecVelocity[i].y * -1;

    }

    noStroke();

    fill(iro[i]);

    ellipse(vecLocation[i].x ,vecLocation[i].y, okisa[i], okisa[i]);

  }

}