OpenTTD

date.cpp
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1 /* $Id: date.cpp 26482 2014-04-23 20:13:33Z rubidium $ */
2
3 /*
4 * This file is part of OpenTTD.
5 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
6 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8 */
9
12 #include "stdafx.h"
13 #include "network/network.h"
14 #include "network/network_func.h"
15 #include "currency.h"
16 #include "window_func.h"
17 #include "settings_type.h"
18 #include "date_func.h"
19 #include "vehicle_base.h"
20 #include "rail_gui.h"
21 #include "linkgraph/linkgraph.h"
22 #include "saveload/saveload.h"
23
24 #include "safeguards.h"
25
26 Year _cur_year;
27 Month _cur_month;
28 Date _date;
29 DateFract _date_fract;
30 uint16 _tick_counter;
31
37 void SetDate(Date date, DateFract fract)
38 {
39 assert(fract < DAY_TICKS);
40
41 YearMonthDay ymd;
42
43 _date = date;
44 _date_fract = fract;
45 ConvertDateToYMD(date, &ymd);
46 _cur_year = ymd.year;
47 _cur_month = ymd.month;
48 }
49
50 #define M(a, b) ((a << 5) | b)
51 static const uint16 _month_date_from_year_day[] = {
52 M( 0, 1), M( 0, 2), M( 0, 3), M( 0, 4), M( 0, 5), M( 0, 6), M( 0, 7), M( 0, 8), M( 0, 9), M( 0, 10), M( 0, 11), M( 0, 12), M( 0, 13), M( 0, 14), M( 0, 15), M( 0, 16), M( 0, 17), M( 0, 18), M( 0, 19), M( 0, 20), M( 0, 21), M( 0, 22), M( 0, 23), M( 0, 24), M( 0, 25), M( 0, 26), M( 0, 27), M( 0, 28), M( 0, 29), M( 0, 30), M( 0, 31),
53 M( 1, 1), M( 1, 2), M( 1, 3), M( 1, 4), M( 1, 5), M( 1, 6), M( 1, 7), M( 1, 8), M( 1, 9), M( 1, 10), M( 1, 11), M( 1, 12), M( 1, 13), M( 1, 14), M( 1, 15), M( 1, 16), M( 1, 17), M( 1, 18), M( 1, 19), M( 1, 20), M( 1, 21), M( 1, 22), M( 1, 23), M( 1, 24), M( 1, 25), M( 1, 26), M( 1, 27), M( 1, 28), M( 1, 29),
54 M( 2, 1), M( 2, 2), M( 2, 3), M( 2, 4), M( 2, 5), M( 2, 6), M( 2, 7), M( 2, 8), M( 2, 9), M( 2, 10), M( 2, 11), M( 2, 12), M( 2, 13), M( 2, 14), M( 2, 15), M( 2, 16), M( 2, 17), M( 2, 18), M( 2, 19), M( 2, 20), M( 2, 21), M( 2, 22), M( 2, 23), M( 2, 24), M( 2, 25), M( 2, 26), M( 2, 27), M( 2, 28), M( 2, 29), M( 2, 30), M( 2, 31),
55 M( 3, 1), M( 3, 2), M( 3, 3), M( 3, 4), M( 3, 5), M( 3, 6), M( 3, 7), M( 3, 8), M( 3, 9), M( 3, 10), M( 3, 11), M( 3, 12), M( 3, 13), M( 3, 14), M( 3, 15), M( 3, 16), M( 3, 17), M( 3, 18), M( 3, 19), M( 3, 20), M( 3, 21), M( 3, 22), M( 3, 23), M( 3, 24), M( 3, 25), M( 3, 26), M( 3, 27), M( 3, 28), M( 3, 29), M( 3, 30),
56 M( 4, 1), M( 4, 2), M( 4, 3), M( 4, 4), M( 4, 5), M( 4, 6), M( 4, 7), M( 4, 8), M( 4, 9), M( 4, 10), M( 4, 11), M( 4, 12), M( 4, 13), M( 4, 14), M( 4, 15), M( 4, 16), M( 4, 17), M( 4, 18), M( 4, 19), M( 4, 20), M( 4, 21), M( 4, 22), M( 4, 23), M( 4, 24), M( 4, 25), M( 4, 26), M( 4, 27), M( 4, 28), M( 4, 29), M( 4, 30), M( 4, 31),
57 M( 5, 1), M( 5, 2), M( 5, 3), M( 5, 4), M( 5, 5), M( 5, 6), M( 5, 7), M( 5, 8), M( 5, 9), M( 5, 10), M( 5, 11), M( 5, 12), M( 5, 13), M( 5, 14), M( 5, 15), M( 5, 16), M( 5, 17), M( 5, 18), M( 5, 19), M( 5, 20), M( 5, 21), M( 5, 22), M( 5, 23), M( 5, 24), M( 5, 25), M( 5, 26), M( 5, 27), M( 5, 28), M( 5, 29), M( 5, 30),
58 M( 6, 1), M( 6, 2), M( 6, 3), M( 6, 4), M( 6, 5), M( 6, 6), M( 6, 7), M( 6, 8), M( 6, 9), M( 6, 10), M( 6, 11), M( 6, 12), M( 6, 13), M( 6, 14), M( 6, 15), M( 6, 16), M( 6, 17), M( 6, 18), M( 6, 19), M( 6, 20), M( 6, 21), M( 6, 22), M( 6, 23), M( 6, 24), M( 6, 25), M( 6, 26), M( 6, 27), M( 6, 28), M( 6, 29), M( 6, 30), M( 6, 31),
59 M( 7, 1), M( 7, 2), M( 7, 3), M( 7, 4), M( 7, 5), M( 7, 6), M( 7, 7), M( 7, 8), M( 7, 9), M( 7, 10), M( 7, 11), M( 7, 12), M( 7, 13), M( 7, 14), M( 7, 15), M( 7, 16), M( 7, 17), M( 7, 18), M( 7, 19), M( 7, 20), M( 7, 21), M( 7, 22), M( 7, 23), M( 7, 24), M( 7, 25), M( 7, 26), M( 7, 27), M( 7, 28), M( 7, 29), M( 7, 30), M( 7, 31),
60 M( 8, 1), M( 8, 2), M( 8, 3), M( 8, 4), M( 8, 5), M( 8, 6), M( 8, 7), M( 8, 8), M( 8, 9), M( 8, 10), M( 8, 11), M( 8, 12), M( 8, 13), M( 8, 14), M( 8, 15), M( 8, 16), M( 8, 17), M( 8, 18), M( 8, 19), M( 8, 20), M( 8, 21), M( 8, 22), M( 8, 23), M( 8, 24), M( 8, 25), M( 8, 26), M( 8, 27), M( 8, 28), M( 8, 29), M( 8, 30),
61 M( 9, 1), M( 9, 2), M( 9, 3), M( 9, 4), M( 9, 5), M( 9, 6), M( 9, 7), M( 9, 8), M( 9, 9), M( 9, 10), M( 9, 11), M( 9, 12), M( 9, 13), M( 9, 14), M( 9, 15), M( 9, 16), M( 9, 17), M( 9, 18), M( 9, 19), M( 9, 20), M( 9, 21), M( 9, 22), M( 9, 23), M( 9, 24), M( 9, 25), M( 9, 26), M( 9, 27), M( 9, 28), M( 9, 29), M( 9, 30), M( 9, 31),
62 M(10, 1), M(10, 2), M(10, 3), M(10, 4), M(10, 5), M(10, 6), M(10, 7), M(10, 8), M(10, 9), M(10, 10), M(10, 11), M(10, 12), M(10, 13), M(10, 14), M(10, 15), M(10, 16), M(10, 17), M(10, 18), M(10, 19), M(10, 20), M(10, 21), M(10, 22), M(10, 23), M(10, 24), M(10, 25), M(10, 26), M(10, 27), M(10, 28), M(10, 29), M(10, 30),
63 M(11, 1), M(11, 2), M(11, 3), M(11, 4), M(11, 5), M(11, 6), M(11, 7), M(11, 8), M(11, 9), M(11, 10), M(11, 11), M(11, 12), M(11, 13), M(11, 14), M(11, 15), M(11, 16), M(11, 17), M(11, 18), M(11, 19), M(11, 20), M(11, 21), M(11, 22), M(11, 23), M(11, 24), M(11, 25), M(11, 26), M(11, 27), M(11, 28), M(11, 29), M(11, 30), M(11, 31),
64 };
65 #undef M
66
67 enum DaysTillMonth {
68 ACCUM_JAN = 0,
69 ACCUM_FEB = ACCUM_JAN + 31,
70 ACCUM_MAR = ACCUM_FEB + 29,
71 ACCUM_APR = ACCUM_MAR + 31,
72 ACCUM_MAY = ACCUM_APR + 30,
73 ACCUM_JUN = ACCUM_MAY + 31,
74 ACCUM_JUL = ACCUM_JUN + 30,
75 ACCUM_AUG = ACCUM_JUL + 31,
76 ACCUM_SEP = ACCUM_AUG + 31,
77 ACCUM_OCT = ACCUM_SEP + 30,
78 ACCUM_NOV = ACCUM_OCT + 31,
79 ACCUM_DEC = ACCUM_NOV + 30,
80 };
81
83 static const uint16 _accum_days_for_month[] = {
84 ACCUM_JAN, ACCUM_FEB, ACCUM_MAR, ACCUM_APR,
85 ACCUM_MAY, ACCUM_JUN, ACCUM_JUL, ACCUM_AUG,
86 ACCUM_SEP, ACCUM_OCT, ACCUM_NOV, ACCUM_DEC,
87 };
88
94 void ConvertDateToYMD(Date date, YearMonthDay *ymd)
95 {
96 /* Year determination in multiple steps to account for leap
97 * years. First do the large steps, then the smaller ones.
98 */
99
100 /* There are 97 leap years in 400 years */
101 Year yr = 400 * (date / (DAYS_IN_YEAR * 400 + 97));
102 int rem = date % (DAYS_IN_YEAR * 400 + 97);
103 uint16 x;
104
105 if (rem >= DAYS_IN_YEAR * 100 + 25) {
106 /* There are 25 leap years in the first 100 years after
107 * every 400th year, as every 400th year is a leap year */
108 yr += 100;
109 rem -= DAYS_IN_YEAR * 100 + 25;
110
111 /* There are 24 leap years in the next couple of 100 years */
112 yr += 100 * (rem / (DAYS_IN_YEAR * 100 + 24));
113 rem = (rem % (DAYS_IN_YEAR * 100 + 24));
114 }
115
116 if (!IsLeapYear(yr) && rem >= DAYS_IN_YEAR * 4) {
117 /* The first 4 year of the century are not always a leap year */
118 yr += 4;
119 rem -= DAYS_IN_YEAR * 4;
120 }
121
122 /* There is 1 leap year every 4 years */
123 yr += 4 * (rem / (DAYS_IN_YEAR * 4 + 1));
124 rem = rem % (DAYS_IN_YEAR * 4 + 1);
125
126 /* The last (max 3) years to account for; the first one
127 * can be, but is not necessarily a leap year */
128 while (rem >= (IsLeapYear(yr) ? DAYS_IN_LEAP_YEAR : DAYS_IN_YEAR)) {
129 rem -= IsLeapYear(yr) ? DAYS_IN_LEAP_YEAR : DAYS_IN_YEAR;
130 yr++;
131 }
132
133 /* Skip the 29th of February in non-leap years */
134 if (!IsLeapYear(yr) && rem >= ACCUM_MAR - 1) rem++;
135
136 ymd->year = yr;
137
138 x = _month_date_from_year_day[rem];
139 ymd->month = x >> 5;
140 ymd->day = x & 0x1F;
141 }
142
149 Date ConvertYMDToDate(Year year, Month month, Day day)
150 {
151 /* Day-offset in a leap year */
152 int days = _accum_days_for_month[month] + day - 1;
153
154 /* Account for the missing of the 29th of February in non-leap years */
155 if (!IsLeapYear(year) && days >= ACCUM_MAR) days--;
156
157 return DAYS_TILL(year) + days;
158 }
159
162 extern void EnginesDailyLoop();
163 extern void DisasterDailyLoop();
164 extern void IndustryDailyLoop();
165
166 extern void CompaniesMonthlyLoop();
167 extern void EnginesMonthlyLoop();
168 extern void TownsMonthlyLoop();
169 extern void IndustryMonthlyLoop();
170 extern void StationMonthlyLoop();
171 extern void SubsidyMonthlyLoop();
172
173 extern void CompaniesYearlyLoop();
174 extern void VehiclesYearlyLoop();
175 extern void TownsYearlyLoop();
176
177 extern void ShowEndGameChart();
178
179
181 static const Month _autosave_months[] = {
182 0,
183 1,
184 3,
185 6,
186 12,
187 };
188
192 static void OnNewYear()
193 {
194 CompaniesYearlyLoop();
195 VehiclesYearlyLoop();
196 TownsYearlyLoop();
197 InvalidateWindowClassesData(WC_BUILD_STATION);
198 #ifdef ENABLE_NETWORK
199 if (_network_server) NetworkServerYearlyLoop();
200 #endif /* ENABLE_NETWORK */
201
202 if (_cur_year == _settings_client.gui.semaphore_build_before) ResetSignalVariant();
203
204 /* check if we reached end of the game */
205 if (_cur_year == ORIGINAL_END_YEAR) {
206 ShowEndGameChart();
207 /* check if we reached the maximum year, decrement dates by a year */
208 } else if (_cur_year == MAX_YEAR + 1) {
209 Vehicle *v;
210 int days_this_year;
211
212 _cur_year--;
213 days_this_year = IsLeapYear(_cur_year) ? DAYS_IN_LEAP_YEAR : DAYS_IN_YEAR;
214 _date -= days_this_year;
215 FOR_ALL_VEHICLES(v) v->date_of_last_service -= days_this_year;
216
217 LinkGraph *lg;
218 FOR_ALL_LINK_GRAPHS(lg) lg->ShiftDates(-days_this_year);
219
220 #ifdef ENABLE_NETWORK
221 /* Because the _date wraps here, and text-messages expire by game-days, we have to clean out
222 * all of them if the date is set back, else those messages will hang for ever */
223 NetworkInitChatMessage();
224 #endif /* ENABLE_NETWORK */
225 }
226
227 if (_settings_client.gui.auto_euro) CheckSwitchToEuro();
228 }
229
233 static void OnNewMonth()
234 {
235 if (_settings_client.gui.autosave != 0 && (_cur_month % _autosave_months[_settings_client.gui.autosave]) == 0) {
236 _do_autosave = true;
237 SetWindowDirty(WC_STATUS_BAR, 0);
238 }
239
240 SetWindowClassesDirty(WC_CHEATS);
241 CompaniesMonthlyLoop();
242 EnginesMonthlyLoop();
243 TownsMonthlyLoop();
244 IndustryMonthlyLoop();
245 SubsidyMonthlyLoop();
246 StationMonthlyLoop();
247 #ifdef ENABLE_NETWORK
248 if (_network_server) NetworkServerMonthlyLoop();
249 #endif /* ENABLE_NETWORK */
250 }
251
255 static void OnNewDay()
256 {
257 #ifdef ENABLE_NETWORK
258 if (_network_server) NetworkServerDailyLoop();
259 #endif /* ENABLE_NETWORK */
260
261 DisasterDailyLoop();
262 IndustryDailyLoop();
263
264 SetWindowWidgetDirty(WC_STATUS_BAR, 0, 0);
265 EnginesDailyLoop();
266
267 /* Refresh after possible snowline change */
268 SetWindowClassesDirty(WC_TOWN_VIEW);
269 }
270
275 void IncreaseDate()
276 {
277 /* increase day, and check if a new day is there? */
278 _tick_counter++;
279
280 if (_game_mode == GM_MENU) return;
281
282 _date_fract++;
283 if (_date_fract < DAY_TICKS) return;
284 _date_fract = 0;
285
286 /* increase day counter */
287 _date++;
288
289 YearMonthDay ymd;
290 ConvertDateToYMD(_date, &ymd);
291
292 /* check if we entered a new month? */
293 bool new_month = ymd.month != _cur_month;
294
295 /* check if we entered a new year? */
296 bool new_year = ymd.year != _cur_year;
297
298 /* update internal variables before calling the daily/monthly/yearly loops */
299 _cur_month = ymd.month;
300 _cur_year = ymd.year;
301
302 /* yes, call various daily loops */
303 OnNewDay();
304
305 /* yes, call various monthly loops */
306 if (new_month) OnNewMonth();
307
308 /* yes, call various yearly loops */
309 if (new_year) OnNewYear();
310 }
CompaniesYearlyLoop
void CompaniesYearlyLoop()
A year has passed, update the economic data of all companies, and perhaps show the financial overview...
Definition: company_cmd.cpp:722
IncreaseDate
void IncreaseDate()
Increases the tick counter, increases date and possibly calls procedures that have to be called daily...
Definition: date.cpp:275
DAYS_IN_YEAR
static const int DAYS_IN_YEAR
days per year
Definition: date_type.h:31
SetWindowDirty
void SetWindowDirty(WindowClass cls, WindowNumber number)
Mark window as dirty (in need of repainting)
Definition: window.cpp:3120
StationMonthlyLoop
void StationMonthlyLoop()
Monthly loop for stations.
Definition: station_cmd.cpp:3649
date_func.h
Functions related to dates.
YearMonthDay::day
Day day
Day (1..31)
Definition: date_type.h:106
currency.h
Functions to handle different currencies.
CompaniesMonthlyLoop
void CompaniesMonthlyLoop()
Monthly update of the economic data (of the companies as well as economic fluctuations).
Definition: economy.cpp:1943
OnNewYear
static void OnNewYear()
Runs various procedures that have to be done yearly.
Definition: date.cpp:192
Vehicle
Vehicle data structure.
Definition: vehicle_base.h:212
DAY_TICKS
static const int DAY_TICKS
1 day is 74 ticks; _date_fract used to be uint16 and incremented by 885.
Definition: date_type.h:30
LinkGraph::ShiftDates
void ShiftDates(int interval)
Shift all dates by given interval.
Definition: linkgraph.cpp:54
Year
int32 Year
Type for the year, note: 0 based, i.e. starts at the year 0.
Definition: date_type.h:20
_cur_year
Year _cur_year
Current year, starting at 0.
Definition: date.cpp:26
NetworkServerDailyLoop
void NetworkServerDailyLoop()
Daily "callback".
Definition: network_server.cpp:1946
rail_gui.h
Functions/types etc.
LinkGraph
A connected component of a link graph.
Definition: linkgraph.h:40
InvalidateWindowClassesData
void InvalidateWindowClassesData(WindowClass cls, int data, bool gui_scope)
Mark window data of all windows of a given class as invalid (in need of re-computing) Note that by de...
Definition: window.cpp:3238
SetDate
void SetDate(Date date, DateFract fract)
Set the date.
Definition: date.cpp:37
saveload.h
Functions/types related to saving and loading games.
_date_fract
DateFract _date_fract
Fractional part of the day.
Definition: date.cpp:29
GUISettings::auto_euro
bool auto_euro
automatically switch to euro in 2002
Definition: settings_type.h:122
_settings_client
ClientSettings _settings_client
The current settings for this game.
Definition: settings.cpp:76
settings_type.h
Types related to global configuration settings.
NetworkServerYearlyLoop
void NetworkServerYearlyLoop()
Yearly "callback".
Definition: network_server.cpp:1931
stdafx.h
Definition of base types and functions in a cross-platform compatible way.
YearMonthDay
Data structure to convert between Date and triplet (year, month, and day).
Definition: date_type.h:103
safeguards.h
A number of safeguards to prevent using unsafe methods.
ResetSignalVariant
bool ResetSignalVariant(int32 p)
Updates the current signal variant used in the signal GUI to the one adequate to current year...
Definition: rail_gui.cpp:1953
GUISettings::semaphore_build_before
Year semaphore_build_before
build semaphore signals automatically before this year
Definition: settings_type.h:125
DateFract
uint16 DateFract
The fraction of a date we&#39;re in, i.e. the number of ticks since the last date changeover.
Definition: date_type.h:17
DAYS_TILL
#define DAYS_TILL(year)
Calculate the date of the first day of a given year.
Definition: date_type.h:76
YearMonthDay::year
Year year
Year (0...)
Definition: date_type.h:104
network.h
Basic functions/variables used all over the place.
WC_BUILD_STATION
Build station; Window numbers:
Definition: window_type.h:392
Month
uint8 Month
Type for the month, note: 0 based, i.e. 0 = January, 11 = December.
Definition: date_type.h:21
YearMonthDay::month
Month month
Month (0..11)
Definition: date_type.h:105
IsLeapYear
static bool IsLeapYear(Year yr)
Checks whether the given year is a leap year or not.
Definition: date_func.h:32
CheckSwitchToEuro
void CheckSwitchToEuro()
Verify if the currency chosen by the user is about to be converted to Euro.
Definition: currency.cpp:135
_cur_month
Month _cur_month
Current month (0..11)
Definition: date.cpp:27
_tick_counter
uint16 _tick_counter
Ever incrementing (and sometimes wrapping) tick counter for setting off various events.
Definition: date.cpp:30
ShowEndGameChart
void ShowEndGameChart()
Show the endgame victory screen in 2050.
Definition: highscore_gui.cpp:241
NetworkInitChatMessage
void NetworkInitChatMessage()
Initialize all buffers of the chat visualisation.
Definition: network_chat_gui.cpp:118
_accum_days_for_month
static const uint16 _accum_days_for_month[]
Number of days to pass from the first day in the year before reaching the first of a month...
Definition: date.cpp:83
OnNewDay
static void OnNewDay()
Runs various procedures that have to be done daily.
Definition: date.cpp:255
OnNewMonth
static void OnNewMonth()
Runs various procedures that have to be done monthly.
Definition: date.cpp:233
ClientSettings::gui
GUISettings gui
settings related to the GUI
Definition: settings_type.h:561
WC_CHEATS
Cheat window; Window numbers:
Definition: window_type.h:620
SetWindowWidgetDirty
void SetWindowWidgetDirty(WindowClass cls, WindowNumber number, byte widget_index)
Mark a particular widget in a particular window as dirty (in need of repainting)
Definition: window.cpp:3134
vehicle_base.h
Base class for all vehicles.
Vehicle::date_of_last_service
Date date_of_last_service
Last date the vehicle had a service at a depot.
Definition: vehicle_base.h:260
WC_TOWN_VIEW
Town view; Window numbers:
Definition: window_type.h:328
_autosave_months
static const Month _autosave_months[]
Available settings for autosave intervals.
Definition: date.cpp:181
Day
uint8 Day
Type for the day of the month, note: 1 based, first day of a month is 1.
Definition: date_type.h:22
WC_STATUS_BAR
Statusbar (at the bottom of your screen); Window numbers:
Definition: window_type.h:59
network_func.h
Network functions used by other parts of OpenTTD.
_network_server
bool _network_server
network-server is active
Definition: network.cpp:57
SubsidyMonthlyLoop
void SubsidyMonthlyLoop()
Perform the monthly update of open subsidies, and try to create a new one.
Definition: subsidy.cpp:469
IndustryDailyLoop
void IndustryDailyLoop()
Daily handler for the industry changes Taking the original map size of 256*256, the number of random ...
Definition: industry_cmd.cpp:2677
linkgraph.h
Declaration of link graph classes used for cargo distribution.
Date
int32 Date
The type to store our dates in.
Definition: date_type.h:16
FOR_ALL_VEHICLES
#define FOR_ALL_VEHICLES(var)
Iterate over all vehicles.
Definition: vehicle_base.h:986
NetworkServerMonthlyLoop
void NetworkServerMonthlyLoop()
Monthly "callback".
Definition: network_server.cpp:1938
ConvertYMDToDate
Date ConvertYMDToDate(Year year, Month month, Day day)
Converts a tuple of Year, Month and Day to a Date.
Definition: date.cpp:149
window_func.h
Window functions not directly related to making/drawing windows.
SetWindowClassesDirty
void SetWindowClassesDirty(WindowClass cls)
Mark all windows of a particular class as dirty (in need of repainting)
Definition: window.cpp:3148
_date
Date _date
Current date in days (day counter)
Definition: date.cpp:28
ConvertDateToYMD
void ConvertDateToYMD(Date date, YearMonthDay *ymd)
Converts a Date to a Year, Month & Day.
Definition: date.cpp:94
EnginesMonthlyLoop
void EnginesMonthlyLoop()
Monthly update of the availability, reliability, and preview offers of the engines.
Definition: engine.cpp:967
GUISettings::autosave
byte autosave
how often should we do autosaves?
Definition: settings_type.h:104
MAX_YEAR
static const Year MAX_YEAR
MAX_YEAR, nicely rounded value of the number of years that can be encoded in a single 32 bits date...
Definition: date_type.h:94
_do_autosave
bool _do_autosave
are we doing an autosave at the moment?
Definition: saveload.cpp:278
EnginesDailyLoop
void EnginesDailyLoop()
Functions used by the IncreaseDate function.
Definition: engine.cpp:799
DAYS_IN_LEAP_YEAR
static const int DAYS_IN_LEAP_YEAR
sometimes, you need one day more...
Definition: date_type.h:32
ORIGINAL_END_YEAR
static const Year ORIGINAL_END_YEAR
The original ending year.
Definition: date_type.h:53