server/server/weather.C

/*
 * CrossFire, A Multiplayer game for X-windows
 * 
 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
 * 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:	1.16
Committed:	Mon Jan 15 21:06:20 2007 UTC (17 years, 5 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_0
Changes since 1.15:	+23 -23 lines
Log Message:	comments
#	User	Rev	Content
1	elmex	1.1	/*
2	pippijn	1.16	* CrossFire, A Multiplayer game for X-windows
3			*
4			* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
5			* Copyright (C) 2002 Tim Rightnour
6			* Copyright (C) 2002 Mark Wedel & Crossfire Development Team
7			* Copyright (C) 1992 Frank Tore Johansen
8			*
9			* This program is free software; you can redistribute it and/or modify
10			* it under the terms of the GNU General Public License as published by
11			* the Free Software Foundation; either version 2 of the License, or
12			* (at your option) any later version.
13			*
14			* This program is distributed in the hope that it will be useful,
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17			* GNU General Public License for more details.
18			*
19			* You should have received a copy of the GNU General Public License
20			* along with this program; if not, write to the Free Software
21			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22			*
23			* The authors can be reached via e-mail to <crossfire@schmorp.de>
24			*/
25	elmex	1.1
26			/* This weather system was written for crossfire by Tim Rightnour */
27
28			#include <global.h>
29			#include <tod.h>
30			#include <map.h>
31			#ifndef __CEXTRACT__
32	root	1.5	# include <sproto.h>
33	elmex	1.1	#endif
34
35			extern unsigned long todtick;
36
37			static const int season_timechange[5][HOURS_PER_DAY] = {
38	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 */
39			{ 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},
40			{ 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},
41			{ 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},
42			{ 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},
43			{ 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}
44	elmex	1.1	};
45
46	root	1.5	void
47	root	1.14	maptile::set_darkness_map ()
48	elmex	1.1	{
49	root	1.5	timeofday_t tod;
50	elmex	1.1
51	root	1.14	if (!outdoor)
52	root	1.5	return;
53	elmex	1.1
54	root	1.5	get_tod (&tod);
55	root	1.14	darkness = 0;
56
57			for (int i = HOURS_PER_DAY / 2; i < HOURS_PER_DAY; i++)
58			change_map_light (season_timechange[tod.season][i]);
59
60			for (int i = 0; i <= tod.hour; i++)
61			change_map_light (season_timechange[tod.season][i]);
62	elmex	1.1	}
63
64			/*
65			* Compute the darkness level for all maps in the game. Requires the
66			* time of day as an argument.
67			*/
68
69	root	1.5	static void
70			dawn_to_dusk (const timeofday_t * tod)
71	elmex	1.1	{
72	root	1.5	/* If the light level isn't changing, no reason to do all
73			* the work below.
74			*/
75			if (season_timechange[tod->season][tod->hour] == 0)
76			return;
77
78	root	1.14	maptile::change_all_map_light (season_timechange[tod->season][tod->hour]);
79	elmex	1.1	}
80
81			/*
82			* This performs the basic function of advancing the clock one tick
83			* forward. Every 20 ticks, the clock is saved to disk. It is also
84			* saved on shutdown. Any time dependant functions should be called
85			* from this function, and probably be passed tod as an argument.
86			* Please don't modify tod in the dependant function.
87			*/
88	root	1.5	void
89			tick_the_clock (void)
90	elmex	1.1	{
91	root	1.5	timeofday_t tod;
92
93			todtick++;
94			if (todtick % 20 == 0)
95			write_todclock ();
96	root	1.13
97	root	1.5	get_tod (&tod);
98			dawn_to_dusk (&tod);
99	elmex	1.1	}