p5.js Web Editor | Asteroids Game (Midterm Project) copy

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let bullets = [];
let asteroid = [];
let shooter;
let asteroids;
let asteroidsnum = 0;
let number = 0;
let difficulty = 0; 
let currentScore = 0;
let prevScore = 0;
let gamestatus = "start";
let rate = 0;
let widthh = 400;
let fired = 0;
​
function preload() 
{
  img = loadImage('background.jpg');
  start = loadImage('startgame.jpg');
  ship = loadImage('ship.png');
  bullet = loadImage('bullet.png');
  asteroid1 = loadImage('asteroid1.jpg');
  asteroid2 = loadImage('asteroid2.jpg');
  asteroid3 = loadImage('asteroid3.jpg');
}
​
function setup() 
{
  createCanvas(400, 550);
  shooter = new shot();
  asteroids = [asteroid1,asteroid2,asteroid3] ;
}
​
​
function score()
{
  textSize(32);
  fill(250);
  text("Score: "+currentScore,20,50);
}
​
function upgrade()
{
  if(currentScore === 10 + prevScore)
  {
    difficulty += 0.5;
    prevScore = currentScore;
  }
  return random(1,5)+difficulty;
​
}
​
function keyPressed() 
{
  if(keyCode === ENTER)
  {
     gamestatus = "running";
  }
  if (keyCode === UP_ARROW)
  {
    makebullet(shooter.x,shooter.y);
  }
  if(keyCode === LEFT_ARROW)
  {
    rate = -5;
  }
  if(keyCode === RIGHT_ARROW)
  {
    rate = 5;
  }
  if(keyCode === BACKSPACE)
  {
    asteroid.splice(0,asteroid.length);
    asteroidsnum = 0;
  }
  
  
}
​
function removeAsteroid()
{
  asteroid.splice(0,asteroid.length);
  asteroidsnum = 0;
}
​
​
function keyReleased() 
{
  
  if (keyCode === RIGHT_ARROW || keyCode === LEFT_ARROW) 
  {
    rate = 0;
  }
  if(keyCode === ENTER)
  {
     gamestatus = "running";
  }
  if(keyCode === BACKSPACE)
  {
    asteroid.splice(0,asteroid.length);
    asteroidsnum = 0;
  }
}
​
​
function displayBullets()
{
  for(let i = 0; i < bullets.length; i++)
  {
    bullets[i].display();
    if(bullets[i].y < 0)
    {
      bullets.splice(i,1);
      number--;
    }
  }
}
​
function generateAsteroid()
{
  let rand = int(random(0, 100));
  let rand2 = int(random(0, 100));
  if(rand % 7 == 0)
  {
    if(rand2 % 3 == 0)
    {
      if(rand2 % 2 == 0 && rand % 2 == 0)
      {
          asteroid[asteroidsnum] = new type();
          asteroid[asteroidsnum].display();
          asteroidsnum++;
      }
    }
  }
}
​
function displayAsteroid()
{
  for(let i = 0; i < asteroid.length; i++)
  {
    asteroid[i].display();
    
    let temp = false;
    for(let j = 0; j < bullets.length; j++)
    {
      if(bullets[j].collision(asteroid[i]))
      {
        temp = true;
        bullets.splice(i,1);
        number--;
      }
    }
    
    if(shooter.collision(asteroid[i]))
    {
      asteroid.splice(i,1);
      asteroidsnum--;
      gamestatus = "end";
    }
    else if(asteroid[i].y > height || temp)
    {
      asteroid.splice(i,1);
      asteroidsnum--;
    }
  }
}
​
​
function makebullet(x,y)
{
  bullets[number] = new bulletClass(x,y);
  bullets[number].display();
  number++;
}
​
​
class type
{
  constructor()
  {
    this.x = random(0,widthh-50);
    this.y = -20;
    this.asteroidtype =  int(random(0, 3));
    this.rateFall = upgrade();
  }
  display()
  {
    image(asteroids[this.asteroidtype],this.x,this.y);
    this.move();
  }
  move()
  {
    this.y += this.rateFall;
  }
  width()
  {
    if(this.asteroidtype == 0)
    {
      return 71;
    }
    else if(this.asteroidtype == 1)
    {
      return 48;
    }
    else if(this.asteroidtype == 2)
    {
      return 91;
    }
  } 
}
​
​
class bulletClass
{
  constructor(x,y)
  {
    this.x = x;
    this.y = y;
    this.collision1 = false;
  }
  
  display()
  {
    image(bullet,this.x,this.y);
    this.move();
  }
  
  move()
  {
    this.y -= 7;
  }
  
  collision(other)
  {
    if ( (this.x <= (other.x + other.width())) && (this.x >= other.x)) 
    {
      if ((this.y <= (other.y + other.width())) && (this.y  >= other.y))
      {
        currentScore++;
        return true;
      }      
    }
  } 
}
​
​
class shot
{
  constructor()
  {
    this.x = 200;
    this.y = 450;
    this.display();
  }
  
  display()
  {
    imageMode(CENTER);
    image(ship,this.x,this.y);
​
    this.move();
    this.checkboundries();
​
​
    imageMode(CORNER);
  }
  
  move()
  {
    this.x += rate;
  }
  
  checkboundries()
  {
    if(this.x > widthh)
    {
      this.x = 0;
    }
    else if(this.x < 0)
    {
      this.x = widthh;
    }
  }
  
  collision(other)
  {
    if ( (this.x <= (other.x + other.width())) && (this.x >= other.x)) 
    {
      if ((this.y <= (other.y + other.width())) && (this.y  >= other.y))
      {
        return true;
      }      
    }
  }
}
​
function draw() 
{
  background(0);
  
  if(gamestatus == "running")
  {
    image(img, 0, 0);
    shooter.display();
    displayBullets();
    generateAsteroid();
    displayAsteroid();
    score();
  }
  else if(gamestatus == "end")
  {
    background(start);
    removeAsteroid();
    currentScore = 0;
    difficulty = 0;
    prevScore = 0;
  }
  else if(gamestatus == "start")
  {
    background(start);
  } 
}
​
​
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