ActionScript 3.0 for the Lunder Algorithm

package com.feiruo.Calendar.LunderCalendar
{

/*
*@ClassName: package:com.feiruo.Calendar.LunderCalendar::LunarDate
*@INTRO: Calculating lunar and solar terms and other settings. 
*@Author: feiruo
*@Language: ActionScript 3.0
*@SDKVersion: Flash Player 11.2
*@Date: 2015.08.24
*/

public class LunarDate
{
private var num_info:Array =
                                         [0x4bd8, 0x4ae0, 0xa570, 0x54d5, 0xd260, 0xd950,
                                          0x5554, 0x56af, 0x9ad0, 0x55d2, 0x4ae0, 0xa5b6,
                                          0xa4d0, 0xd250, 0xd255, 0xb54f, 0xd6a0, 0xada2,
                                          0x95b0, 0x4977, 0x497f, 0xa4b0, 0xb4b5, 0x6a50,
                                          0x6d40, 0xab54, 0x2b6f, 0x9570, 0x52f2, 0x4970,
                                          0x6566, 0xd4a0, 0xea50, 0x6a95, 0x5adf, 0x2b60,
                                          0x86e3, 0x92ef, 0xc8d7, 0xc95f, 0xd4a0, 0xd8a6,
                                          0xb55f, 0x56a0, 0xa5b4, 0x25df, 0x92d0, 0xd2b2,
                                          0xa950, 0xb557, 0x6ca0, 0xb550, 0x5355, 0x4daf,
                                          0xa5b0, 0x4573, 0x52bf, 0xa9a8, 0xe950, 0x6aa0,
                                          0xaea6, 0xab50, 0x4b60, 0xaae4, 0xa570, 0x5260,
                                          0xf263, 0xd950, 0x5b57, 0x56a0, 0x96d0, 0x4dd5,
                                          0x4ad0, 0xa4d0, 0xd4d4, 0xd250, 0xd558, 0xb540,
                                          0xb6a0, 0x95a6, 0x95bf, 0x49b0, 0xa974, 0xa4b0,
                                          0xb27a, 0x6a50, 0x6d40, 0xaf46, 0xab60, 0x9570,
                                          0x4af5, 0x4970, 0x64b0, 0x74a3, 0xea50, 0x6b58,
                                          0x5ac0, 0xab60, 0x96d5, 0x92e0, 0xc960, 0xd954,
                                          0xd4a0, 0xda50, 0x7552, 0x56a0, 0xabb7, 0x25d0,
                                          0x92d0, 0xcab5, 0xa950, 0xb4a0, 0xbaa4, 0xad50,
                                          0x55d9, 0x4ba0, 0xa5b0, 0x5176, 0x52bf, 0xa930,
                                          0x7954, 0x6aa0, 0xad50, 0x5b52, 0x4b60, 0xa6e6,
                                          0xa4e0, 0xd260, 0xea65, 0xd530, 0x5aa0, 0x76a3,
                                          0x96d0, 0x4afb, 0x4ad0, 0xa4d0, 0xd0b6, 0xd25f, 
                                          0xd520, 0xdd45, 0xb5a0, 0x56d0, 0x55b2, 0x49b0, 
                                          0xa577, 0xa4b0, 0xaa50, 0xb255, 0x6d2f, 0xada0,
                                          0x4b63, 0x937f, 0x49f8, 0x4970, 0x64b0, 0x68a6,
                                          0xea5f, 0x6b20, 0xa6c4, 0xaaef, 0x92e0, 0xd2e3, 
                                          0xc960, 0xd557, 0xd4a0, 0xda50, 0x5d55, 0x56a0,
                                          0xa6d0, 0x55d4, 0x52d0, 0xa9b8, 0xa950, 0xb4a0, 
                                          0xb6a6, 0xad50, 0x55a0, 0xaba4, 0xa5b0, 0x52b0,
                                          0xb273, 0x6930, 0x7337, 0x6aa0, 0xad50, 0x4b55,
                                          0x4b6f, 0xa570, 0x54e4, 0xd260, 0xe968, 0xd520,
                                          0xdaa0, 0x6aa6, 0x56df, 0x4ae0, 0xa9d4, 0xa4d0, 
                                          0xd150, 0xf252, 0xd520];


private var solarMonth:Array = [31,28,31,30,31,30,31,31,30,31,30,31];
private var Gan:Array = ["甲","乙","丙","丁","戊","己","庚","辛","壬","癸"];

private var nStr1 = new Array('日','一','二','三','四','五','六','七','八','九','十');
private var nStr2 = new Array('初','十','廿','卅');


private var Zhi:Array = ["子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"];
private var Animals:Array = ["猴","鸡","狗","猪","鼠","牛","虎","兔","龙","蛇","马","羊"];
private var monthName:Array = ["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"];
private var solarTerm:Array = ["小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至"];
private var TermInfo:Array =                                                                     [0,21208,42467,63836,85337,107014,128867,150921,173149,195551,218072,240693,263343,285989,308563,331033,353350,375494,397447,419210,440795,462224,483532,504758];

private var cyear:Number;
private var cmonth:Number;
private var cday:Number;
private var isLeap:Boolean;
private var nianzhu:String;
private var yuezhu:String;
private var rizhu:String;
private var jie:String;
private var y:Number,m:Number,d:Number;

public function LunarDate(myDate:Date)
{
var leap:Number = 0;
var temp:Number = 0;

y = myDate.getFullYear();
m = myDate.getMonth();
d = myDate.getDate();

var offset=(Date.UTC(y,m,d)-Date.UTC(1900,0,31))/86400000;

for (var i = 1900; i<2100 && offset>0; i++)
{
temp = lYearDays(i);
offset -= temp;
}
if (offset<0)
{
offset += temp;
i--;
}

cyear = i;
leap = leapMonth(i);
isLeap = false;

for (var j = 1; j<13 && offset>0; j++)
{
if (leap>0 && j == (leap+1) && isLeap == false)
{
--j;
isLeap = true;
temp = leapDays(cyear);
}
else
{
temp = monthDays(cyear,j);
}
if (isLeap == true && j == (leap+1))
{
isLeap = false;
}
offset -= temp;
}
if (offset == 0 && leap>0 && j == leap+1)
{
if (isLeap)
{
isLeap = false;
}
else
{
isLeap = true;
--j;
}
}
if (offset<0)
{
offset += temp;
--j;
}
cmonth = j;
cday = offset + 1;

var cY,cM,cD;

m<2 ? cY = cyclical(y-1900+36-1) : cY = cyclical(y-1900+36);

cM = cyclical((y-1900)*12+m+12);

var tmp1 = sTerm(y,m * 2);
var tmp2 = sTerm(y,m * 2 + 1);

if (d == tmp1)
{
jie = solarTerm[m * 2];
}
else
{
if (d == tmp2)
{
jie = solarTerm[m * 2 + 1];
}
else
{
jie = "";
}
}
this.jie = jie;

var term2 = sTerm(y,2);
var firstNode = sTerm(y,m * 2);
if (m == 1 && d>=term2)
{
cY = cyclical(y-1900+36);
}

if ((d+1)>=firstNode)
{
cM = cyclical((y-1900)*12+m+13);
}
var dayCyclical = Date.UTC(y,m,1,0,0,0,0) / 86400000 + 25567 + 10;
cD = cyclical(dayCyclical+d-1);
nianzhu = cY;
yuezhu = cM;
rizhu = cD;
}
public function getAnimal():String
{
return Animals[cyear%12];
}
public function getLunarYear():Number
{
return cyear;
}
public function getLunarMonth():Number
{
return cmonth;
}
public function getLunarDay():Number
{
return cday;
}
public function get_Month():Number
{
return m + 1;
}
public function getJNianZhu():String
{
return nianzhu;
}
public function getYueZhu():String
{
return yuezhu;
}
public function getRiZhu():String
{
return rizhu;
}
public function getJieQi():String
{
return jie;
}
private function lYearDays(y):Number
{
var sum:Number = 348;

for (var i = 0x8000; i>0x8; i >>= 1)
{
sum += (num_info[y-1900] & i) ? 1 : 0;
}

return sum + leapDays(y);
}

//small month or big Month;
private function leapDays(y):int
{
if (leapMonth(y))
{
return num_info[y - 1899] & 0xf == 0xf?30:29;
}
else
{
return 0;
}
}
private function leapMonth(y):int
{
var lm = num_info[y - 1900] & 0xf;
return lm == 0xf?0:lm;
}
private function monthDays(y, m):int
{
return num_info[y - 1900] & 0x10000 >> m?30:29;
}
private function sTerm(y, n)
{
var offDate = new Date((31556925974.7*(y-1900)+TermInfo[n]*60000)+Date.UTC(1900, 0, 6, 2, 5));
return (offDate.getUTCDate());
}
private function solarDays(y, m):uint
{
if (m == 1)
{
return y % 4 == 0 && y % 100 != 0 || y % 400 == 0?29:28;
}
else
{
return solarMonth[m];
}
}
private function cyclical(num):String
{
return Gan[num % 10] + Zhi[num % 12];
}

}

}