var precision = preci || 0,

    power = Math.pow(10, precision),

    absValue = Math.abs(Math.round(value * power)),

    result = (value < 0 ? '-' : '') + String(Math.floor(absValue / power));

​

  if (precision > 0) {

    var fraction = String(absValue % power),

      padding = new Array(Math.max(precision - fraction.length, 0) + 1).join('0');

    result += '.' + padding + fraction;

  }

  return result;

}

​

const AccountTypes = Object.freeze({

  "OA": 0,

  "SA": 1,

  "MA": 2,

  "RA": 3

});

const RetirementAge = 65;

​

class CPFSimulator {

  constructor(age, salary) {

    this.currentAge = age;

    this.currentSalary = salary;

    this.yearlyBalance = {};

    this.yearlyContributions = {};

    this.yearlyInterests = {};

    this.yearlyDeductions = {};

    this.BHS = {};

    this.FRS = {};

    this.BHSRate = 0.025;

    this.FRSRate = 0.025;

    var today = new Date();

    this.RetirementYear = RetirementAge - this.currentAge + today.getCurrentYear();

  }

​

  init() {

    if (this.BHSRate > 0) {

      // auto calculate yearly BHS.

      var age = this.currentAge;

      this.BHS[age] = 60000.0;

      while(age <= RetirementAge){

        this.BHS[age+=1] = this.BHS[age-1]*(1+this.BHSRate); 

      }

    }

  }

​

  getAllocationRate(age) {

    if (age < 35) return [0.23, 0.06, 0.08];

    if (age >= 35 && age < 45) return [0.21, 0.07, 0.09];

    if (age >= 45 && age < 50) return [0.19, 0.08, 0.10];

    if (age >= 50 && age < 55) return [0.15, 0.115, 0.105];

    if (age >= 55 && age < 60) return [0.12, 0.035, 0.105];

    if (age >= 60 && age < 65) return [0.035, 0.025, 0.105];

    if (age >= 65) return [0.01, 0.01, 0.105];

  }

​

  simulate() {

    var age = this.currentAge;

    var today = new Date();

    var year = today.getCurrentYear();

​

    while (age <= 65) {

      simulateContributions(age, year);

      age++;

      year++;

    }

  }

}

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

}