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// Exercise 8 Melanie Mitchell

// Blowing Bubbles!

// 

let bubbles = new Array(70);

​

​

function setup() {

  createCanvas(500, 900);

​

​

​

  for (let i = 0; i < bubbles.length; i++) {

    bubbles[i] = new Bubble(40, 860, i * 10, random(5, 20), random(0.04, 0.2), random(-0.09,-0.2));

  }

​

}

​

function draw() {

  background (149, 208, 219);

  stroke(20, 33, 82);

  noFill();

  ellipse (40, 860, 40, 40);

  line (40, 880, 40, 900);

​

  for (let i = 0; i < bubbles.length; i++) {

    bubbles[i].displayBubble();

    bubbles[i].moveBubble();

  }

}

​

class Bubble {

  constructor(tempX, tempY, tempColour, tempRad, tempSpeedx, tempSpeedy) {

    this.x = tempX;

    this.y = tempY;

    this.color = tempColour;

    this.rad = tempRad; 

    this.speedx = tempSpeedx;

    this.speedy = tempSpeedy;

  }

​

  displayBubble() {

    stroke(255);

    noFill();

    ellipse(this.x, this.y, this.rad * 2, this.rad * 2);

​

​

    this.x += this.speedx;

    this.y += this.speedy;

​

    if (this.x < 0 + this.rad || this.x > width - this.rad) {

      this.speedx = this.speedx * -1;

    }

​

    if (this.y < 0 + this.rad || this.y > height - this.rad) {

      this.speedy = this.speedy * -1;

    }

  }

​

  moveBubble() {

    this.x += this.speedx;

    this.y += this.speedy;

  }

}