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Location: cpp/openttd-patchpack/source/src/date_type.h - annotation
r8781:bd977c904a17
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text/x-c
(svn r12482) -Fix: [build train] we don't need to have a depot in order to just check the price of a rail vehicle so don't check for compatible rails on the tile either
also wagons will only need tracks they can drive on in order to be build so there is no reason to check for power in the depot
also wagons will only need tracks they can drive on in order to be build so there is no reason to check for power in the depot
r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 r8140:9424f012f6a2 | /* $Id$ */
/** @file date_type.h Types related to the dates in OpenTTD. */
#ifndef DATE_TYPE_H
#define DATE_TYPE_H
/**
* 1 day is 74 ticks; _date_fract used to be uint16 and incremented by 885. On
* an overflow the new day begun and 65535 / 885 = 74.
* 1 tick is approximately 30 ms.
* 1 day is thus about 2 seconds (74 * 30 = 2220) on a machine that can run OpenTTD normally
*/
#define DAY_TICKS 74
/*
* ORIGINAL_BASE_YEAR, ORIGINAL_MAX_YEAR and DAYS_TILL_ORIGINAL_BASE_YEAR are
* primarily used for loading newgrf and savegame data and returning some
* newgrf (callback) functions that were in the original (TTD) inherited
* format, where '_date == 0' meant that it was 1920-01-01.
*/
/** The minimum starting year/base year of the original TTD */
#define ORIGINAL_BASE_YEAR 1920
/** The maximum year of the original TTD */
#define ORIGINAL_MAX_YEAR 2090
/**
* The offset in days from the '_date == 0' till
* 'ConvertYMDToDate(ORIGINAL_BASE_YEAR, 0, 1)'
*/
#define DAYS_TILL_ORIGINAL_BASE_YEAR (365 * ORIGINAL_BASE_YEAR + ORIGINAL_BASE_YEAR / 4 - ORIGINAL_BASE_YEAR / 100 + ORIGINAL_BASE_YEAR / 400)
/* The absolute minimum & maximum years in OTTD */
#define MIN_YEAR 0
/* MAX_YEAR, nicely rounded value of the number of years that can
* be encoded in a single 32 bits date, about 2^31 / 366 years. */
#define MAX_YEAR 5000000
typedef int32 Date;
typedef uint16 DateFract;
typedef int32 Year;
typedef uint8 Month;
typedef uint8 Day;
struct YearMonthDay {
Year year;
Month month;
Day day;
};
static const Year INVALID_YEAR = -1;
static const Date INVALID_DATE = -1;
#endif /* DATE_TYPE_H */
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