Game prototype

game.js

class Person {
  constructor(name) {
    this.name = name;
    this.age = 0;
    this.cash = 0;
    this.job = undefined;
    this.properties = [];
    this.children = [];
  }

  turn() {
    this.age = this.age + 0.5;
    this.cash += this.job.salary;
    this.properties.forEach(i => this.cash -= i.expenses);
    this.children.forEach(i => this.cash -= 10);
  }
}

class Property {
  constructor(description) {
    this.description = description;
    this.expenses = 10;
    this.value = 50000;
  }
}

class Job {
  constructor(description) {
    this.description = description;
    this.salary = 100;
  }
}

let me = new Person('Henrique');
let daughter = new Person('Letícia');
let son = new Person('Pedro Lucas');

let house = new Property('House');
let beachhouse = new Property('House in Miami');
let car = new Property('Car');

let job = new Job('Developer');

me.children.push(daughter, son);
me.properties.push(house, beachhouse, car);
me.job = job;

me.turn();
me.turn();
me.turn();

console.log(me);