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/* |
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CrossFire, A Multiplayer game for X-windows |
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|
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Copyright (C) 2002 Tim Rightnour |
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Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
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Copyright (C) 1992 Frank Tore Johansen |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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|
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The authors can be reached via e-mail to <crossfire@schmorp.de> |
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*/ |
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|
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/* This weather system was written for crossfire by Tim Rightnour */ |
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|
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#include <global.h> |
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#include <tod.h> |
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#include <map.h> |
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#ifndef __CEXTRACT__ |
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# include <sproto.h> |
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#endif |
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|
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extern unsigned long todtick; |
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|
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static const int season_timechange[5][HOURS_PER_DAY] = { |
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/* 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 */ |
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{ 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}, |
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{ 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}, |
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{ 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}, |
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{ 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}, |
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{ 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} |
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}; |
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|
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void |
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maptile::set_darkness_map () |
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{ |
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timeofday_t tod; |
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|
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if (!outdoor) |
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return; |
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|
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get_tod (&tod); |
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darkness = 0; |
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|
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for (int i = HOURS_PER_DAY / 2; i < HOURS_PER_DAY; i++) |
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change_map_light (season_timechange[tod.season][i]); |
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|
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for (int i = 0; i <= tod.hour; i++) |
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change_map_light (season_timechange[tod.season][i]); |
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} |
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|
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/* |
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* Compute the darkness level for all maps in the game. Requires the |
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* time of day as an argument. |
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*/ |
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|
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static void |
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dawn_to_dusk (const timeofday_t * tod) |
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{ |
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/* If the light level isn't changing, no reason to do all |
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* the work below. |
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*/ |
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if (season_timechange[tod->season][tod->hour] == 0) |
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return; |
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|
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maptile::change_all_map_light (season_timechange[tod->season][tod->hour]); |
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} |
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|
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/* |
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* This performs the basic function of advancing the clock one tick |
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* forward. Every 20 ticks, the clock is saved to disk. It is also |
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* saved on shutdown. Any time dependant functions should be called |
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* from this function, and probably be passed tod as an argument. |
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* Please don't modify tod in the dependant function. |
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*/ |
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void |
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tick_the_clock (void) |
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{ |
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timeofday_t tod; |
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|
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todtick++; |
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if (todtick % 20 == 0) |
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write_todclock (); |
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|
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get_tod (&tod); |
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dawn_to_dusk (&tod); |
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} |
