////////////////////////////////////////////////////////////////////////////////
//Date and Time Functions
//
//inc_datetime
//
//Scripted By Warspawn
//warspawn@cox.net
//
//These functions are great to use with Due Dates, Birthdays, Timed by Cycle
//Feel free to modify, use, copy, distribute this any way you like.
//If you make this better please let me know!
//If you use this and love it please let me know!
//If you have any problems, I'll try to help. Just email me.
////////////////////////////////////////////////////////////////////////////////
string GetCurrentDate()//generates MM/DD/YYYY string of current date
{
string sResult;
sResult = IntToString(GetCalendarMonth()) + "/" + IntToString(GetCalendarDay()) + "/" + IntToString(GetCalendarYear());
return sResult;
}
string GetDateString(int iDay = 1, int iMonth = 1, int iYear = 1)//generates a string MM/DD/YYYY out of given dates
{
string sResult;
sResult = IntToString(iMonth) + "/" + IntToString(iDay) + "/" + IntToString(iYear);
return sResult;
}
//usage: iDay = ParseDateString("9/7/1977", "day");
int ParseDateString(string sDateString, string sOption)//option = day, month, year
{
string sTemp1;
int iResult, iSlash1, iSlash2, iIndex, iStrLength;
iSlash1 = 0;
iSlash2 = 0;
iStrLength = GetStringLength(sDateString);
for(iIndex = 0; iIndex <= (iStrLength - 1); iIndex++)//get position of slashes
{
sTemp1 = GetSubString(sDateString, iIndex, 1);
if(sTemp1 == "/")
{
if(iSlash1 == 0)
{
iSlash1 = iIndex;
}
else if (iSlash2 == 0)
{
iSlash2 = iIndex;
}
}
}
if(sOption == "month")
{
sTemp1 = GetStringLeft(sDateString, iSlash1);
iResult = StringToInt(sTemp1);
}
else if(sOption == "day")
{
sTemp1 = GetSubString(sDateString, iSlash1 + 1, (iSlash2 - iSlash1) -1);
iResult = StringToInt(sTemp1);
}
else if(sOption == "year")
{
sTemp1 = GetSubString(sDateString, iSlash2 + 1, (iStrLength - 1) - iSlash2);
iResult = StringToInt(sTemp1);
}
else
return -1;//invalid option
return iResult;
}
//usage: iNumOfDaysElapsed = GetDateDifference("1/14/1352", "9/7/1977", "days");
//uses NWN calendar settings for # of days in month (28)
//note: sDate1 MUST BE <= SDate2
//i.e. GetDateDifference("1/14/1356", "1/14/1355", "months") will result in BADNESS!
//
int GetDateDifference(string sDate1, string sDate2, string sOption)//option = "days", "months", "years"
{
int iTempDay1, iTempMonth1, iTempYear1;
int iTempDay2, iTempMonth2, iTempYear2;
int iResult;
int iYears, iDays, iMonths;
iTempDay1 = ParseDateString(sDate1, "day");
iTempMonth1 = ParseDateString(sDate1, "month");
iTempYear1 = ParseDateString(sDate1, "year");
iTempDay2 = ParseDateString(sDate2, "day");
iTempMonth2 = ParseDateString(sDate2, "month");
iTempYear2 = ParseDateString(sDate2, "year");
if(iTempYear2 == iTempYear1)//same year
{
iYears = 0;
if(iTempMonth2 == iTempMonth1)//same year and same month
{
iMonths = 0;
iDays = iTempDay2 - iTempDay1;
}
else //same year and different month
{
if(iTempDay2 == iTempDay1)//same year, different month, same day
{
iMonths = iTempMonth2 - iTempMonth1;
iDays = iMonths * 28;
}
else //same year, diff month, diff day
{
if(iTempDay2 >= iTempDay1)//different month at least one month
{
iMonths = iTempMonth2 - iTempMonth1;
iDays = (iTempDay2 - iTempDay1) + (iMonths * 28);
}
else //different month, at least one month, ending in incomplete month
{
iMonths = (iTempMonth2 - iTempMonth1) - 1;
iDays = (28 * iMonths) + (28 - (iTempDay1 - 1)) + (28 - ((28 - iTempDay2) + 1));
}
}
}
}
if(iTempYear2 > iTempYear1)//not same year
{
if(iTempMonth2 == iTempMonth1)//diff year, same month
{
if(iTempDay2 == iTempDay1)//diff year, same month, same day
{
iYears = iTempYear2 - iTempYear1;
iMonths = 12 * iYears;
iDays = 28 * iMonths;
}
else //diff year, same month, diff day
{
if(iTempDay2 > iTempDay1)//diff year, same month, at least one year
{
iYears = iTempYear2 - iTempYear1;
iMonths = 12 * iYears;
iDays = (28 * iMonths) + (iTempDay2 - iTempDay1);
}
else //diff year, same month, one less year
{
iYears = (iTempYear2 - iTempYear1) -1;
iMonths = (12 * iYears) + 11;
iDays = (28 * iMonths) + (28 + (iTempDay2 - iTempDay1));
}
}
}
else //diff year, diff month
{
if(iTempMonth2 > iTempMonth1)//diff year, diff month, at least one year, extra months
{
if(iTempDay2 == iTempDay1)//diff year, diff month, same day
{
iYears = iTempYear2 - iTempYear1;
iMonths = (12 * iYears) + (iTempMonth2 - iTempMonth1);
iDays = 28 * iMonths;
}
else //diff year, diff month, diff day
{
if(iTempDay2 > iTempDay1)//diff year, diff month, extra days
{
iYears = iTempYear2 - iTempYear1;
iMonths = (12 * iYears) + (iTempMonth2 - iTempMonth1);
iDays = (28 * iMonths) + (iTempDay2 - iTempDay1);
}
else //diff year, diff month, fewer days
{
iYears = iTempYear2 - iTempYear1;
iMonths = (12 * iYears) + (iTempMonth2 - iTempMonth1);
iDays =(28 * iMonths) + (28 + (iTempDay2 - iTempDay1));
}
}
}
else //diff year, diff month, one year less (fewer months)
{
if(iTempDay2 == iTempDay1)//diff year, less months, same day
{
iYears = (iTempYear2 - iTempYear1) -1;
iMonths = (12 * iYears) - (iTempMonth2 - iTempMonth1);
iDays = 28 * iMonths;
}
else //diff year, fewer months, diff day
{
if(iTempDay2 > iTempDay1)//diff year, fewer months, extra days
{
iYears = (iTempYear2 - iTempYear1) -1;
iMonths = (12 * iYears) - (iTempMonth2 - iTempMonth1);
iDays = (28 * iMonths) + (iTempDay2 - iTempDay1);
}
else //diff year, fewer months, less days
{
iYears = (iTempYear2 - iTempYear1) -1;
iMonths = (12 * iYears) - (iTempMonth2 - iTempMonth1);
iDays =(28 * iMonths) + (28 + (iTempDay2 - iTempDay1));
}
}
}
}
}
if(iTempYear2 < iTempYear1)
return -1;//badness insues
if(sOption == "days")
{
return iDays;
}
else if(sOption == "months")
{
return iMonths;
}
else if(sOption == "years")
{
return iYears;
}
else
return -1; //invalid option
}
//usage: sDueDate = GetFutureDate(GetCurrentDate(), 7, 1, 0);
//this will return a string 1 week and 1 month later
string GetFutureDate(string sStartDate, int iIncDay = 0, int iIncMonth = 0, int iIncYear = 0)
{
string sResult;
int iIndex, iRolloverBuffer;
int iStartDay, iStartMonth, iStartYear;
int iEndDay, iEndMonth, iEndYear;
iStartDay = ParseDateString(sStartDate, "day");
iStartMonth = ParseDateString(sStartDate, "month");
iStartYear = ParseDateString(sStartDate, "year");
iEndYear = iStartYear + iIncYear;
iEndMonth = iStartMonth + iIncMonth;
iEndDay = iStartDay + iIncDay;
if((iStartDay + iIncDay) > 28) //rollover days and months
{
iRolloverBuffer = iEndDay - 28;
iIndex = 1;
while (iRolloverBuffer >= 28)
{
iRolloverBuffer = iRolloverBuffer - 28;
iIndex++;
}
iEndDay = iRolloverBuffer;
iEndMonth = iEndMonth + iIndex;
}
if(iEndMonth > 12) //rollover months and years
{
iRolloverBuffer = iEndMonth - 12;
iIndex = 1;
while (iRolloverBuffer >= 12)
{
iRolloverBuffer = iRolloverBuffer - 12;
iIndex++;
}
iEndMonth = iRolloverBuffer;
iEndYear = iEndYear + iIndex;
}
sResult = IntToString(iEndMonth) + "/" + IntToString(iEndDay) + "/" + IntToString(iEndYear);
return sResult;
}
//usage: sBDay = GetPastDate(GetCurrentDate(), 0, 0, 50);
//this will return a string 50 years earlier
string GetPastDate(string sStartDate, int iIncDay = 0, int iIncMonth = 0, int iIncYear = 0)
{
string sResult;
int iIndex, iRolloverBuffer;
int iStartDay, iStartMonth, iStartYear;
int iEndDay, iEndMonth, iEndYear;
iStartDay = ParseDateString(sStartDate, "day");
iStartMonth = ParseDateString(sStartDate, "month");
iStartYear = ParseDateString(sStartDate, "year");
iEndYear = iStartYear - iIncYear;
iEndMonth = iStartMonth - iIncMonth;
iEndDay = iStartDay - iIncDay;
if(iEndDay < 1) //rollover days and months
{
iRolloverBuffer = iEndDay + 28;
iIndex = 1;
while (iRolloverBuffer <= 1)
{
iRolloverBuffer = iRolloverBuffer + 28;
iIndex++;
}
iEndDay = iRolloverBuffer;
iEndMonth = iEndMonth - iIndex;
}
if(iEndMonth < 1) //rollover months and years
{
iRolloverBuffer = iEndMonth + 12;
iIndex = 1;
while (iRolloverBuffer <= 1)
{
iRolloverBuffer = iRolloverBuffer + 12;
iIndex++;
}
iEndMonth = iRolloverBuffer;
iEndYear = iEndYear - iIndex;
}
sResult = IntToString(iEndMonth) + "/" + IntToString(iEndDay) + "/" + IntToString(iEndYear);
return sResult;
}
//purpose: test if sDate1 is > sDate2
int CompareDates(string sDate1, string sDate2)
{
int iResult;
int iTempDay1, iTempMonth1, iTempYear1;
int iTempDay2, iTempMonth2, iTempYear2;
iTempDay1 = ParseDateString(sDate1, "day");
iTempMonth1 = ParseDateString(sDate1, "month");
iTempYear1 = ParseDateString(sDate1, "year");
iTempDay2 = ParseDateString(sDate2, "day");
iTempMonth2 = ParseDateString(sDate2, "month");
iTempYear2 = ParseDateString(sDate2, "year");
if(iTempYear1 == iTempYear2) //same year
{
if(iTempMonth1 == iTempMonth2) //same month
{
if(iTempDay1 > iTempDay2) //same year and month, just check day
iResult = TRUE;
else
iResult = FALSE;
}
else
{
if(iTempMonth1 > iTempMonth2)//same year, if month is bigger date is >
iResult = TRUE;
else
iResult = FALSE;
}
}
else
{
if(iTempYear1 > iTempYear2)//if the year is bigger, day and month don't matter
iResult = TRUE;
else
iResult = FALSE;
}
return iResult;
}
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