306 lines
8.7 KiB
C++
306 lines
8.7 KiB
C++
#pragma once
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/************************************************************************
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使用32位的原子数据描述日期和时间的数据类型
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由于使用32位的原子数据，导致数据的存储值范围有限，因此时间值的最小单位是秒。对于一个
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时间值，本类型实际存储的就是自2010年1月1日0点到当前时间所经过的秒数！
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取得两个时间对象的时间差，可以直接使用减法运算。将一个日期值增加一定的时间，可以直接
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增加时间的秒数。
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★实际上，数据存储的时间值使用0到30位，第31位表示此时间是否开始计时的记录标志位，例
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如一个装备在产生的时候肯能带有一个使用时限，时间值表示的是该装备可以使用的时长，例如1天，
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30天。而装备仅在第一次被玩家穿戴的时候才开始计时。当计时开始的时候，时间值被修改为使用
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时长加当前时间值，且最高位被置位来表示这个物品的时间已经开始了计时。
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★短时间类型能够描述的最大日期为2079年1月1日。
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************************************************************************/
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#pragma pack (push, 1)
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#include <string.h>
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#include "_osdef.h"
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struct CMiniDateTime
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{
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public:
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//定义短时间类型开始的年份
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static const int YearBase = 2010;
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//定义时间是否已经开始计时的标志位
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static const unsigned int RecordFlag = 0x80000000;
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//定义各种单位的时间的秒数
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static const unsigned int SecOfMin = 60;
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static const unsigned int SecOfHour = SecOfMin * 60;
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static const unsigned int SecOfDay = SecOfHour * 24;
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static const unsigned int SecOfYear[2];
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static const unsigned int SecOfMonth[2][13];//以月为第二数组的下标，免去月份-1的操作！
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static const unsigned int MonthDays[2][13];//以月为第二数组的下标，免去月份-1的操作！
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public:
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/* 从规定的日期和时间中设置短日期时间类型值
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* year 公元年份，例如2012；
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* month 月份，注意：1表示1月，而非0；
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* day 日份，注意：1表示1号，而非0；
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* hour 小时，0表示0点，23表示晚上11点；
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* min 分钟，0表示0分；
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* sec 秒钟，0表示0秒；
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* ★★★运算函数不会改变时间的记录标志位
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*/
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inline CMiniDateTime& encode(const unsigned int year, const unsigned int mon, const unsigned int day,
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const unsigned int hour, const unsigned int min, const unsigned int sec)
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{
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int i;
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unsigned int v = 0;
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//计算年份经过的秒数
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for (i=year - 1; i>=YearBase; --i)
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{
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v += SecOfYear[isLeapYear(i)];
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}
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//计算当年1月到本月的秒数
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bool boLeepYear = isLeapYear(year);
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for (i=mon -1; i>=1; --i)
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{
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v += SecOfMonth[boLeepYear][i];
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}
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//计算当年1号到今天的秒数
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v += (day - 1) * SecOfDay;
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//计算今天0点到现在的秒数
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v += hour * SecOfHour;
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//计算当前小时的0分到现在的秒数
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v += min * SecOfMin;
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v += sec;
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tv = (tv & RecordFlag) | (v & (~RecordFlag));
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return *this;
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}
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// 从MiniDataTime转化到系统时间。暂时只精确到天。
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inline void decode(SYSTEMTIME &sysTime)
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{
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unsigned int v = tv & (~RecordFlag);
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// 年
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int year = YearBase;
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while (true)
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{
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unsigned int nSecOfCurrYear = SecOfYear[isLeapYear(year)];
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if (v >= nSecOfCurrYear)
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{
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v -= nSecOfCurrYear;
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year++;
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}
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else
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break;
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}
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// 月
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bool bIsLeepYear = isLeapYear(year);
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int month = 1; // index based 1 <<<<
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while (true)
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{
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unsigned int nSecOfCurrMonth = SecOfMonth[bIsLeepYear][month];
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if (v >= nSecOfCurrMonth)
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{
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v -= nSecOfCurrMonth;
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month++;
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}
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else
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break;
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}
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// 日
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int day = v / SecOfDay + 1; // index based 1 <<<<
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memset(&sysTime, 0, sizeof sysTime);
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sysTime.wYear = year;
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sysTime.wMonth = month;
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sysTime.wDay = day;
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//小时、分、秒
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UINT SecOfToday = v % (24 * 3600);
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sysTime.wHour = SecOfToday / 3600;
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sysTime.wMinute = (SecOfToday % 3600) / 60;
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sysTime.wSecond = SecOfToday % 60;
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}
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inline bool isSameDay(const CMiniDateTime &rhs)
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{
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return ((tv & (~RecordFlag)) / SecOfDay) == ((rhs.tv & (~RecordFlag)) / SecOfDay) ? true : false;
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}
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//从SYSTEMTIME结构中设置日期时间值
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inline CMiniDateTime& encode(const SYSTEMTIME& sysTime)
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{
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return encode(sysTime.wYear, sysTime.wMonth, sysTime.wDay, sysTime.wHour, sysTime.wMinute, sysTime.wSecond);
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}
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//开始记录时间，timeOfNow参数表示当前时间的短时间类型值
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inline CMiniDateTime& startRecord(const unsigned int timeOfNow)
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{
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if ( !(tv & RecordFlag) )
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tv = RecordFlag | ((timeOfNow & (~RecordFlag)) + tv);
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return *this;
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}
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//获取当前日期时间的短时间值
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inline static unsigned int now()
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{
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CMiniDateTime tv;
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SYSTEMTIME sysTime;
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GetLocalTime(&sysTime);
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tv.encode(sysTime.wYear, sysTime.wMonth, sysTime.wDay, sysTime.wHour, sysTime.wMinute, sysTime.wSecond);
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return tv.tv;
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}
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//获取今天凌晨的时间
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inline static unsigned int today()
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{
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CMiniDateTime tv;
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SYSTEMTIME sysTime;
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GetLocalTime(&sysTime);
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tv.encode(sysTime.wYear, sysTime.wMonth, sysTime.wDay, 0, 0, 0);
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return tv.tv;
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}
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//计算明日凌晨的值
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inline static unsigned int tomorrow()
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{
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int dayofMonth[] = {31,28,31,30,31,30,31,31,30,31,30,31};
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CMiniDateTime tv;
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SYSTEMTIME sysTime;
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GetLocalTime(&sysTime);
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sysTime.wDay++;
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if (sysTime.wMonth == 2 && isLeapYear(sysTime.wYear))
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{
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if (sysTime.wDay > 29)
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{
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sysTime.wMonth++;
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sysTime.wDay = 1;
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}
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}
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else if (sysTime.wDay > dayofMonth[sysTime.wMonth-1])
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{
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sysTime.wMonth++;
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sysTime.wDay = 1;
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}
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if (sysTime.wMonth > 12)
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{
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sysTime.wYear++;
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sysTime.wMonth = 1;
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}
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tv.encode(sysTime.wYear, sysTime.wMonth, sysTime.wDay, 0, 0, 0);
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return tv.tv;
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}
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// 计算相对于当前MiniDateTime所指示的时间点的明天
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inline unsigned int rel_tomorrow()
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{
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unsigned v = tv & (~RecordFlag);
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v = (v + SecOfDay) / SecOfDay * SecOfDay;
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return (tv & RecordFlag) | v;
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}
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// // 计算相对于当前MiniDateTime所指示的时间点的当前开始时间点
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inline unsigned int rel_today()
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{
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unsigned v = tv & (~RecordFlag);
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v = v / SecOfDay * SecOfDay;
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return (tv & RecordFlag) | v;
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}
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// // 计算相对于当前MiniDateTime所指示的时间点的当前开始时间点
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inline unsigned int rel_today(unsigned int hours, unsigned int mins, unsigned int seconds)
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{
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unsigned v = tv & (~RecordFlag);
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v = v / SecOfDay * SecOfDay;
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return ((tv & RecordFlag) | v) + SecOfHour*hours + SecOfMin*mins + seconds;
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}
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//判断是否是闰年的函数
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inline static bool isLeapYear(const unsigned int year)
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{
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return ((year & 3) == 0) && ((year % 100 != 0) || (year % 400 == 0));
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}
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public:
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//转换为unsigned int的类型转换运算符
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inline operator unsigned int() const
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{
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return tv;
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}
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//从unsigned int复制的运算符函数
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inline CMiniDateTime& operator = (const unsigned int time)
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{
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tv = time;
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return *this;
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}
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//重载相等判断的运算符
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inline bool operator == (const unsigned int time)
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{
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return tv == time;
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}
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//重载不等判断的运算符
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inline bool operator != (const unsigned int time)
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{
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return tv != time;
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}
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inline bool operator > (const unsigned int time)
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{
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return (tv & (~RecordFlag)) > (time & (~RecordFlag));
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}
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inline bool operator >= (const unsigned int time)
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{
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return (tv & (~RecordFlag)) >= (time & (~RecordFlag));
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}
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inline bool operator < (const unsigned int time)
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{
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return (tv & (~RecordFlag)) < (time & (~RecordFlag));
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}
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inline bool operator <= (const unsigned int time)
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{
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return (tv & (~RecordFlag)) <= (time & (~RecordFlag));
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}
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//重载+运算符，避免对是否使用的标志位进行运算
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inline unsigned int operator + (const unsigned int time)
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{
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return ((tv & (~RecordFlag)) + (time & (~RecordFlag))) & (~RecordFlag);
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}
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//重载-运算符，避免对是否使用的标志位进行运算
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inline unsigned int operator - (const unsigned int time)
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{
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return ((tv & (~RecordFlag)) - (time & (~RecordFlag))) & (~RecordFlag);
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}
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//重载+=运算符，避免对是否使用的标志位进行运算
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inline CMiniDateTime& operator += (const unsigned int time)
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{
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tv = (tv & RecordFlag) | (((tv & (~RecordFlag)) + (time & (~RecordFlag))) & (~RecordFlag));
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return *this;
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}
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//重载-=运算符，避免对是否使用的标志位进行运算
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inline CMiniDateTime& operator -= (const unsigned int time)
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{
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tv = (tv & RecordFlag) | (((tv & (~RecordFlag)) - (time & (~RecordFlag))) & (~RecordFlag));
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return *this;
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}
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public:
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CMiniDateTime()
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{
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tv = 0;
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}
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CMiniDateTime(const CMiniDateTime &mt)
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{
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tv = mt.tv;
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}
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CMiniDateTime(const unsigned int tva)
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{
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tv = tva;
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}
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public:
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unsigned int tv;
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};
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#pragma pack (pop)
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