function scenery(){

  noStroke();

  //Sunset Sky

  for (let i = 0; i < 200; i = i + 2){

    fill(255, 170 - i/1.5, 85);

    rect(0, i, 600, 5);

  //Sun

  fill(255, 190, 40);

  arc(300, 200, 200, 200, radians(180), radians(0));

  }

  //Ocean

  for (let i = 0; i < 400; i = i + 4){

    fill(100 - i/4, 130 - i/4, 255);

    rect(0, i + 200, 600, 5);

  } 

}

​

//Create Array for Fish

let fish = [];

​

//Create Class for Fish

class Fish{

  constructor(){

    this.xPos = random(0, 600);

    this.yPos = random(230, 580);

    this.xSpeed = random(-5, -1);

    this.ySpeed = random(-2, 2);

  }

  //Function for Drawing Fish

  draw(){

    fill(240, 145, 40);

    ellipse(this.xPos, this.yPos, 60, 30);

    triangle(this.xPos + 10, this.yPos, this.xPos + 40, this.yPos - 15, this.xPos + 40, this.yPos + 15);

    fill(0);

    ellipse(this.xPos - 20, this.yPos - 4, 5);

    arc(this.xPos - 30, this.yPos, 15, 7, radians(0), radians(90));

  }

  //Function for Fish Movement

  move(){

    //Check to Stop Fish from Leaving Water

    this.xPos += this.xSpeed;

    if (0 > this.yPos > 300){

      while (this.ySpeed < 0){

      this.ySpeed += 1

      }

    }

    else {

      this.yPos += this.ySpeed;

    }

    //Check to Stop Fish from Staying Below Frame

    if(this.yPos < 630){

      this.yPos += this.ySpeed;

    }

    else {

      this.ySpeed = random(-1, 0);

      this.yPos += this.ySpeed;

      }

    }

  //Function for Resetting Position and Rerolling Speed of Fish Out of Frame

  reset(){

    if(this.xPos < -50){

      this.xPos = 650;

      this.yPos = random(230, 580);

      this.xSpeed = random(-5, -1);

      this.ySpeed = random(-2, 2);

    }

  }

}

​

function setup() {

  createCanvas(600, 600);

  //Generate Multiple Values in Array for Multiple Fish

  for (let i = 0; i < 10; i++){

    fish[i] = new Fish();

  }

}

​

function draw() {

  //Draw In Scenery

    scenery();

  //Draw In Fish

  for (let i = 0; i < 10; i++){

    fish[i].move();

    fish[i].draw();

    fish[i].reset();

  }

}