/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2003-2006,2007 Mark Wedel & Crossfire Development Team
 * Copyright (©) 2000,2007 Tim Rightnour 
 * Copyright (©) 1992,2007 Frank Tore Johansen
 * 
 * Deliantra 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 3 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, see <http://www.gnu.org/licenses/>.
 * 
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

#ifndef TOD_H_
#define TOD_H_

#define TICK                    (MAX_TIME * 1e-6)

#define TICK2TIME(tick)         (tstamp (tick) * TICK)
#define TIME2TICK(time)         tstamp ((time) / TICK)

#define RUNTIME_PER_HOUR	180.
#define TICKS_PER_HOUR		int (RUNTIME_PER_HOUR / MAX_TIME * 1e6)

/* game time */
#define HOURS_PER_DAY		28
#define DAYS_PER_WEEK		 7
#define WEEKS_PER_MONTH		 5
#define MONTHS_PER_YEAR		17

/* convenience */
#define WEEKS_PER_YEAR		(WEEKS_PER_MONTH * MONTHS_PER_YEAR)
#define DAYS_PER_MONTH		(DAYS_PER_WEEK   * WEEKS_PER_MONTH)
#define DAYS_PER_YEAR		(DAYS_PER_MONTH  * MONTHS_PER_YEAR)
#define HOURS_PER_WEEK		(HOURS_PER_DAY   * DAYS_PER_WEEK)
#define HOURS_PER_MONTH		(HOURS_PER_WEEK  * WEEKS_PER_MONTH)
#define HOURS_PER_YEAR		(HOURS_PER_MONTH * MONTHS_PER_YEAR)

#define LUNAR_DAYS		DAYS_PER_MONTH

struct timeofday_t
{
  int year;
  int month;
  int day;
  int dayofweek;
  int hour;
  int minute;
  int weekofmonth;
  int season;
};

/* from common/time.c */
extern void get_tod (timeofday_t *tod);

#if 0
/* weather stuff */

#define POLAR_BASE_TEMP		0	/* C */
#define EQUATOR_BASE_TEMP	30	/* C */
#define SEASONAL_ADJUST		10	/* polar distance */
#define GULF_STREAM_WIDTH       3       /* width of gulf stream */
#define GULF_STREAM_BASE_SPEED  40      /* base speed of gulf stream */

/* don't muck with these unless you are sure you know what they do */
#define PRESSURE_ITERATIONS		30
#define PRESSURE_AREA			180
#define PRESSURE_ROUNDING_FACTOR	2
#define PRESSURE_ROUNDING_ITER		1
#define PRESSURE_SPIKES			3
#define PRESSURE_MAX			1040
#define PRESSURE_MIN			960

/* This is a multiplier for the wind caused by pressure differences.
 * The type of overal climate you get depends on this.
 * Too little wind, and the rain hugs the coast.
 * Too much wind, and there are hurricanes and blizzards everywhere.
 * 1 is too little.
 */
#define WIND_FACTOR  4.0 

/* editing the below might require actual changes to code */
#define WEATHERMAPTILESX		100
#define WEATHERMAPTILESY		100

/* sky conditions */
#define SKY_CLEAR         0
#define SKY_LIGHTCLOUD    1
#define SKY_OVERCAST      2
#define SKY_LIGHT_RAIN    3
#define SKY_RAIN          4 /* rain -> storm has lightning */
#define SKY_HEAVY_RAIN    5
#define SKY_HURRICANE     6
/* wierd weather 7-12 */
#define SKY_FOG           7
#define SKY_HAIL          8
/* snow */
#define SKY_LIGHT_SNOW    13 /* add 10 to rain to get snow */
#define SKY_SNOW          14
#define SKY_HEAVY_SNOW    15
#define SKY_BLIZZARD      16

typedef struct _weather_avoids {
        const char *name;
        int snow;
        archetype *what; /*inited from name, faste to compare arch pointers than strings*/
} weather_avoids_t;

typedef struct _weather_replace {
        const char *tile;
        const char *special_snow;
        const char *doublestack_arch;
        int arch_or_name;
} weather_replace_t;

typedef struct _weather_grow {
        const char *herb; /* arch name of item to grow */
        const char *tile; /* arch tile to grow on, NULL if anything */
        int random; /* random factor.  min 1, higher = lower chance of
                     * appearance */
        float rfmin;
        float rfmax; /* rainfall min/max (inches/day) */
        int humin;
        int humax; /* humidity min/max */
        int tempmin;
        int tempmax; /* temp min/max */
        int elevmin;
        int elevmax; /* elevation min/max */
        int season; /* 0=any or 1-5 */
} weather_grow_t;
#endif

#endif