| author | rubidium |
| Tue, 15 Aug 2006 16:49:48 +0000 | |
| changeset 4288 | 393de75451b1 |
| parent 4286 | 5395d94a7cf2 |
| child 4295 | 51b5d00b5f09 |
| permissions | -rw-r--r-- |
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/* $Id$ */ |
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/** |
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* 1 day is 74 ticks; _date_fract used to be uint16 and incremented by 885. On |
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* an overflow the new day begun and 65535 / 885 = 74. |
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28670f743746
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* 1 tick is approximately 30 ms. |
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* 1 day is thus about 2 seconds (74 * 30 = 2220) on a machine that can run OpenTTD normally |
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*/ |
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#define DAY_TICKS 74 |
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#define BASE_YEAR 1920 |
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#define MIN_YEAR 1920 |
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#define MAX_YEAR 2090 |
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/* Year and Date are defined elsewhere */ |
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typedef uint8 Month; |
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typedef uint8 Day; |
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typedef uint16 DateFract; |
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typedef struct YearMonthDay {
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Year year; |
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Month month; |
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Day day; |
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} YearMonthDay; |
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extern Year _cur_year; |
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extern Month _cur_month; |
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extern Date _date; |
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extern DateFract _date_fract; |
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void SetDate(Date date); |
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void ConvertDateToYMD(Date date, YearMonthDay *ymd); |
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393de75451b1
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Date ConvertYMDToDate(Year year, Month month, Day day); |
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Date ConvertIntDate(uint date); |