snake.js

class Snake {

  constructor() {
    this.body = [];
    this.body[0] = createVector(floor(w/2),floor(h/2));
    this.xdir = 0;
    this.ydir = 0;
    this.len = 1;
  }

  update() {
    let head = this.body[this.body.length - 1].copy();
    this.body.shift();
    head.x += this.xdir;
    head.y += this.ydir;
    this.body.push(head);
  }
  grow() {
    this.len++;
    let head = this.body[this.body.length - 1].copy();
    this.body.push(head)
  }
endGame() {
  	let x = this.body[this.body.length-1].x;
    let y = this.body[this.body.length-1].y;
    if(x > w-1 || x < 0 || y > h-1 || y < 0) {
       return true;
    }
    for(let i = 0; i < this.body.length-1; i++) {
    	let part = this.body[i];
      if(part.x == x && part.y == y) {
      	return true;
      }
    }
    return false;
  }

  eat(pos) {
    let x = this.body[this.body.length - 1].x;
    let y = this.body[this.body.length - 1].y;
    if (x == pos.x && y == pos.y) {
      this.grow();
      return true;
    }
    return false;
    // if (x == pos.x && y == pos.y) {
    //   for(let i = 0; i < ){
    //     console.log('Score : ')
    //   }
    // }

  }
  setDir(x, y) {
    this.xdir = x;
    this.ydir = y;
  }
  show() {
    for (let i = 0; i < this.body.length; i++) {
      noStroke();
      fill(255);
      rect(this.body[i].x, this.body[i].y, 1, 1);
    }

  }


}