server/server/weather.C

/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 2002 Tim Rightnour
    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    This program 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; either version 2 of the License, or
    (at your option) any later version.

    This program 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.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    The authors can be reached via e-mail to <crossfire@schmorp.de>
*/

/* This weather system was written for crossfire by Tim Rightnour */

#include <global.h>
#include <tod.h>
#include <map.h>
#ifndef __CEXTRACT__
# include <sproto.h>
#endif

extern unsigned long todtick;

static const int season_timechange[5][HOURS_PER_DAY] = {
  /* 0  1   2   3   4   5   6   7   8   9  10  11  12  13  14   1   2   3   4   5   6   7   8   9  10  11  12  13 */
  { 0,  0,  0,  0,  0,  0,  0, -1, -1, -1, -1, -1, -1, -1, -1,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1,  1},
  { 0,  0,  0,  0,  0,  0, -1, -1, -1, -1, -1, -1, -1,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1,  0},
  { 0,  0,  0,  0,  0, -1, -1, -1, -1, -1, -1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  0},
  { 0,  0,  0,  0,  0, -1, -1, -1, -1, -1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  0},
  { 0,  0,  0,  0,  0,  0, -1, -1, -1, -1, -1, -1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  0}
};

void
maptile::set_darkness_map ()
{
  timeofday_t tod;

  if (!outdoor)
    return;

  get_tod (&tod);
  darkness = 0;

  for (int i = HOURS_PER_DAY / 2; i < HOURS_PER_DAY; i++)
    change_map_light (season_timechange[tod.season][i]);

  for (int i = 0; i <= tod.hour; i++)
    change_map_light (season_timechange[tod.season][i]);
}

/*
 * Compute the darkness level for all maps in the game.  Requires the
 * time of day as an argument.
 */

static void
dawn_to_dusk (const timeofday_t * tod)
{
  /* If the light level isn't changing, no reason to do all
   * the work below.
   */
  if (season_timechange[tod->season][tod->hour] == 0)
    return;

  maptile::change_all_map_light (season_timechange[tod->season][tod->hour]);
}

/*
 * This performs the basic function of advancing the clock one tick
 * forward.  Every 20 ticks, the clock is saved to disk.  It is also
 * saved on shutdown.  Any time dependant functions should be called
 * from this function, and probably be passed tod as an argument.
 * Please don't modify tod in the dependant function.
 */
void
tick_the_clock (void)
{
  timeofday_t tod;

  todtick++;
  if (todtick % 20 == 0)
    write_todclock ();

  get_tod (&tod);
  dawn_to_dusk (&tod);
}
Revision:	1.14
Committed:	Sat Dec 30 10:16:11 2006 UTC (17 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.13:	+16 -3373 lines
Log Message:	preliminary snapshot check-in, DO NOT USE IN PRODUCTION SYSTEMS See the Changes file for details
#	User	Rev	Content
1	elmex	1.1	/*
2			CrossFire, A Multiplayer game for X-windows
3
4			Copyright (C) 2002 Tim Rightnour
5			Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6			Copyright (C) 1992 Frank Tore Johansen
7
8			This program is free software; you can redistribute it and/or modify
9			it under the terms of the GNU General Public License as published by
10			the Free Software Foundation; either version 2 of the License, or
11			(at your option) any later version.
12
13			This program is distributed in the hope that it will be useful,
14			but WITHOUT ANY WARRANTY; without even the implied warranty of
15			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			GNU General Public License for more details.
17
18			You should have received a copy of the GNU General Public License
19			along with this program; if not, write to the Free Software
20			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22	root	1.7	The authors can be reached via e-mail to <crossfire@schmorp.de>
23	elmex	1.1	*/
24
25			/* This weather system was written for crossfire by Tim Rightnour */
26
27			#include <global.h>
28			#include <tod.h>
29			#include <map.h>
30			#ifndef __CEXTRACT__
31	root	1.5	# include <sproto.h>
32	elmex	1.1	#endif
33
34			extern unsigned long todtick;
35
36			static const int season_timechange[5][HOURS_PER_DAY] = {
37	root	1.14	/* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 */
38			{ 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1},
39			{ 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0},
40			{ 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0},
41			{ 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0},
42			{ 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0}
43	elmex	1.1	};
44
45	root	1.5	void
46	root	1.14	maptile::set_darkness_map ()
47	elmex	1.1	{
48	root	1.5	timeofday_t tod;
49	elmex	1.1
50	root	1.14	if (!outdoor)
51	root	1.5	return;
52	elmex	1.1
53	root	1.5	get_tod (&tod);
54	root	1.14	darkness = 0;
55
56			for (int i = HOURS_PER_DAY / 2; i < HOURS_PER_DAY; i++)
57			change_map_light (season_timechange[tod.season][i]);
58
59			for (int i = 0; i <= tod.hour; i++)
60			change_map_light (season_timechange[tod.season][i]);
61	elmex	1.1	}
62
63			/*
64			* Compute the darkness level for all maps in the game. Requires the
65			* time of day as an argument.
66			*/
67
68	root	1.5	static void
69			dawn_to_dusk (const timeofday_t * tod)
70	elmex	1.1	{
71	root	1.5	/* If the light level isn't changing, no reason to do all
72			* the work below.
73			*/
74			if (season_timechange[tod->season][tod->hour] == 0)
75			return;
76
77	root	1.14	maptile::change_all_map_light (season_timechange[tod->season][tod->hour]);
78	elmex	1.1	}
79
80			/*
81			* This performs the basic function of advancing the clock one tick
82			* forward. Every 20 ticks, the clock is saved to disk. It is also
83			* saved on shutdown. Any time dependant functions should be called
84			* from this function, and probably be passed tod as an argument.
85			* Please don't modify tod in the dependant function.
86			*/
87	root	1.5	void
88			tick_the_clock (void)
89	elmex	1.1	{
90	root	1.5	timeofday_t tod;
91
92			todtick++;
93			if (todtick % 20 == 0)
94			write_todclock ();
95	root	1.13
96	root	1.5	get_tod (&tod);
97			dawn_to_dusk (&tod);
98	elmex	1.1	}