server/common/exp.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992 Frank Tore Johansen
 * 
 * Deliantra is free software: you can redistribute it and/or modify it under
 * the terms of the Affero 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 Affero GNU General Public License
 * and 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>
 */

#include <stdio.h>
#include <global.h>

sint64 *levels;

static float exp_att_mult[NROFATTACKS + 2] = {
  0.0,                          /* AT_PHYSICAL  */
  0.0,                          /* AT_MAGIC     */
  0.0,                          /* AT_FIRE      */
  0.0,                          /* AT_ELECTRICITY */
  0.0,                          /* AT_COLD      */
  0.0,                          /* AT_WATER     *//*AT_CONFUSION! */
  0.4,                          /* AT_ACID      */
  1.5,                          /* AT_DRAIN     */
  0.0,                          /* AT_WEAPONMAGIC */
  0.1,                          /* AT_GHOSTHIT  */
  0.3,                          /* AT_POISON    */
  0.2,                          /* AT_DISEASE   */
  0.3,                          /* AT_PARALYZE  */
  0.0,                          /* AT_TURN_UNDEAD */
  0.0,                          /* AT_FEAR      */
  0.0,                          /* AT_CANCELLATION */
  0.0,                          /* AT_DEPLETE */
  0.0,                          /* AT_DEATH */
  0.0,                          /* AT_CHAOS */
  0.0                           /* AT_COUNTERSPELL */
};

static float exp_prot_mult[NROFATTACKS + 2] = {
  0.4,                          /* AT_PHYSICAL  */
  0.5,                          /* AT_MAGIC     */
  0.1,                          /* AT_FIRE      */
  0.1,                          /* AT_ELECTRICITY */
  0.1,                          /* AT_COLD      */
  0.1,                          /* AT_WATER     */
  0.1,                          /* AT_ACID      */
  0.1,                          /* AT_DRAIN     */
  0.1,                          /* AT_WEAPONMAGIC */
  0.1,                          /* AT_GHOSTHIT  */
  0.1,                          /* AT_POISON    */
  0.1,                          /* AT_DISEASE   */
  0.1,                          /* AT_PARALYZE  */
  0.1,                          /* AT_TURN_UNDEAD */
  0.1,                          /* AT_FEAR      */
  0.0,                          /* AT_CANCELLATION */
  0.0,                          /* AT_DEPLETE */
  0.0,                          /* AT_DEATH */
  0.0,                          /* AT_CHAOS */
  0.0                           /* AT_COUNTERSPELL */
};

/*
 * Returns true if the monster specified has any innate abilities.
 */
static int
has_ability (const object *ob)
{
  object *tmp;

  for (tmp = ob->inv; tmp != NULL; tmp = tmp->below)
    if (tmp->type == SPELL || tmp->type == SPELLBOOK)
      return true;
  return false;
}

/*
 * new_exp() is an alternative way to calculate experience based
 * on the ability of a monster.
 * It's far from perfect, and doesn't consider everything which
 * can be considered, thus it's only used in debugging.
 * this is only used with one of the dumpflags,
 * and not anyplace in the code.
 */
int
new_exp (const object *ob)
{
  double att_mult, prot_mult, spec_mult;
  double exp;
  int i;
  long mask = 1;

  att_mult = prot_mult = spec_mult = 1.0;
  for (i = 0; i < NROFATTACKS; i++)
    {
      mask = 1 << i;
      att_mult += (exp_att_mult[i] * ((ob->attacktype & mask) != 0));
      /* We multiply & then divide to prevent roundoffs on the floats.
       * the doubling is to take into account the table and resistances
       * are lower than they once were.
       */
      prot_mult += (exp_prot_mult[i] * 200 * ob->resist[i]) / 100.0;
    }

  spec_mult += (0.3 * (QUERY_FLAG (ob, FLAG_SEE_INVISIBLE) != 0)) +
    (0.5 * (QUERY_FLAG (ob, FLAG_SPLITTING) != 0)) +
    (0.3 * (QUERY_FLAG (ob, FLAG_HITBACK) != 0)) +
    (0.1 * (QUERY_FLAG (ob, FLAG_REFL_MISSILE) != 0)) +
    (0.3 * (QUERY_FLAG (ob, FLAG_REFL_SPELL) != 0)) +
    (1.0 * (QUERY_FLAG (ob, FLAG_NO_MAGIC) != 0)) +
    (0.1 * (QUERY_FLAG (ob, FLAG_PICK_UP) != 0)) +
    (0.1 * (QUERY_FLAG (ob, FLAG_USE_SCROLL) != 0)) +
    (0.2 * (QUERY_FLAG (ob, FLAG_USE_RANGE) != 0)) + (0.1 * (QUERY_FLAG (ob, FLAG_USE_BOW) != 0));

  exp = (ob->stats.maxhp < 5) ? 5 : ob->stats.maxhp;
  exp *= (QUERY_FLAG (ob, FLAG_CAST_SPELL) && has_ability (ob)) ? (40 + (ob->stats.maxsp > 80 ? 80 : ob->stats.maxsp)) / 40 : 1;
  exp *= (80.0 / (70.0 + ob->stats.wc)) * (80.0 / (70.0 + ob->stats.ac)) * (50.0 + ob->stats.dam) / 50.0;
  exp *= att_mult * prot_mult * spec_mult;
  exp *= 2.0 / (2.0 - min (ob->speed, 0.95));
  exp *= (20.0 + ob->stats.Con) / 20.0;
  if (QUERY_FLAG (ob, FLAG_STAND_STILL))
    exp /= 2;

  return exp;
}

/* This loads the experience table from the exp_table
 * file.  This tends to exit on any errors, since it
 * populates the table as it goes along, so if there
 * are errors, the table is likely in an inconsistent
 * state.
 */
void
init_experience ()
{
  char buf[MAX_BUF], *cp;
  int lastlevel = 0, comp;
  sint64 lastexp = -1, tmpexp;
  FILE *fp;

  sprintf (buf, "%s/exp_table", settings.confdir);

  if ((fp = open_and_uncompress (buf, 0, &comp)) == NULL)
    {
      return;
    }
  while (fgets (buf, MAX_BUF - 1, fp) != NULL)
    {
      if (buf[0] == '#')
        continue;

      /* eliminate newline */
      if ((cp = strrchr (buf, '\n')) != NULL)
        *cp = '\0';

      /* Skip over empty lines */
      if (buf[0] == 0)
        continue;
      cp = buf;
      while (isspace (*cp) && *cp != 0)
        cp++;
      if (!strncasecmp (cp, "max_level", 9))
        {
          if (settings.max_level)
            {
              LOG (llevDebug, "Got more than one max_level value from exp_table file?\n");
              free (levels);
            }
          settings.max_level = atoi (cp + 9);
          if (!settings.max_level)
            {
              LOG (llevDebug, "Got invalid max_level from exp_table file? %s\n", buf);
            }
          else
            {
              levels = (sint64 *) calloc (settings.max_level + 1, sizeof (sint64));
            }
        }
      while (isdigit (*cp) && *cp != 0)
        {
          if (!settings.max_level)
            {
              LOG (llevError, "max_level is not set in exp_table file.  Did you remember to update it?\n");
              exit (1);
            }

          tmpexp = atoll (cp);
          /* Do some sanity checking - if value is bogus, just exit because
           * the table otherwise is probably in an inconsistent state
           */
          if (tmpexp <= lastexp)
            {
              LOG (llevError, "Experience for level %d is lower than previous level (%" PRId64 " <= %" PRId64 ")\n", lastlevel + 1, tmpexp, lastexp);
              exit (1);
            }
          lastlevel++;
          if (lastlevel > settings.max_level)
            {
              LOG (llevError, "Too many levels specified in table (%d > %d)\n", lastlevel, settings.max_level);
              exit (1);
            }
          levels[lastlevel] = tmpexp;
          lastexp = tmpexp;
          /* First, skip over the number we just processed. Then skip over
           * any spaces, commas, etc.
           */
          while (isdigit (*cp) && *cp != 0)
            cp++;
          while (!isdigit (*cp) && *cp != 0)
            cp++;
        }
    }
  close_and_delete (fp, comp);
  if (lastlevel != settings.max_level && lastlevel != 0)
    {
      LOG (llevError, "Warning: exp_table does not have %d entries (%d)\n", settings.max_level, lastlevel);
      exit (1);
    }
}

Revision:	1.27
Committed:	Fri Mar 26 01:04:43 2010 UTC (14 years, 2 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.26:	+1 -1 lines
Log Message:	update copyright for up to 2010
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.17	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	pippijn	1.11	*
4	root	1.27	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.26	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	pippijn	1.11	*
8	root	1.20	* Deliantra is free software: you can redistribute it and/or modify it under
9			* the terms of the Affero GNU General Public License as published by the
10			* Free Software Foundation, either version 3 of the License, or (at your
11			* option) any later version.
12	pippijn	1.11	*
13	root	1.16	* 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	pippijn	1.11	*
18	root	1.20	* You should have received a copy of the Affero GNU General Public License
19			* and the GNU General Public License along with this program. If not, see
20			* <http://www.gnu.org/licenses/>.
21	root	1.15	*
22	root	1.17	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.11	*/
24	elmex	1.1
25			#include <stdio.h>
26			#include <global.h>
27
28			sint64 *levels;
29
30	root	1.22	static float exp_att_mult[NROFATTACKS + 2] = {
31	root	1.5	0.0, /* AT_PHYSICAL */
32			0.0, /* AT_MAGIC */
33			0.0, /* AT_FIRE */
34			0.0, /* AT_ELECTRICITY */
35			0.0, /* AT_COLD */
36			0.0, /* AT_WATER //AT_CONFUSION! */
37			0.4, /* AT_ACID */
38			1.5, /* AT_DRAIN */
39			0.0, /* AT_WEAPONMAGIC */
40			0.1, /* AT_GHOSTHIT */
41			0.3, /* AT_POISON */
42			0.2, /* AT_DISEASE */
43			0.3, /* AT_PARALYZE */
44			0.0, /* AT_TURN_UNDEAD */
45			0.0, /* AT_FEAR */
46			0.0, /* AT_CANCELLATION */
47			0.0, /* AT_DEPLETE */
48			0.0, /* AT_DEATH */
49			0.0, /* AT_CHAOS */
50			0.0 /* AT_COUNTERSPELL */
51	elmex	1.1	};
52
53	root	1.22	static float exp_prot_mult[NROFATTACKS + 2] = {
54	root	1.5	0.4, /* AT_PHYSICAL */
55			0.5, /* AT_MAGIC */
56			0.1, /* AT_FIRE */
57			0.1, /* AT_ELECTRICITY */
58			0.1, /* AT_COLD */
59			0.1, /* AT_WATER */
60			0.1, /* AT_ACID */
61			0.1, /* AT_DRAIN */
62			0.1, /* AT_WEAPONMAGIC */
63			0.1, /* AT_GHOSTHIT */
64			0.1, /* AT_POISON */
65			0.1, /* AT_DISEASE */
66			0.1, /* AT_PARALYZE */
67			0.1, /* AT_TURN_UNDEAD */
68			0.1, /* AT_FEAR */
69			0.0, /* AT_CANCELLATION */
70			0.0, /* AT_DEPLETE */
71			0.0, /* AT_DEATH */
72			0.0, /* AT_CHAOS */
73			0.0 /* AT_COUNTERSPELL */
74	elmex	1.1	};
75
76			/*
77	root	1.21	* Returns true if the monster specified has any innate abilities.
78			*/
79	root	1.23	static int
80	root	1.21	has_ability (const object *ob)
81			{
82			object *tmp;
83
84			for (tmp = ob->inv; tmp != NULL; tmp = tmp->below)
85			if (tmp->type == SPELL \|\| tmp->type == SPELLBOOK)
86			return true;
87			return false;
88			}
89
90			/*
91	elmex	1.1	* new_exp() is an alternative way to calculate experience based
92			* on the ability of a monster.
93			* It's far from perfect, and doesn't consider everything which
94			* can be considered, thus it's only used in debugging.
95			* this is only used with one of the dumpflags,
96			* and not anyplace in the code.
97			*/
98	root	1.5	int
99			new_exp (const object *ob)
100			{
101			double att_mult, prot_mult, spec_mult;
102			double exp;
103			int i;
104			long mask = 1;
105
106			att_mult = prot_mult = spec_mult = 1.0;
107			for (i = 0; i < NROFATTACKS; i++)
108			{
109			mask = 1 << i;
110			att_mult += (exp_att_mult[i] * ((ob->attacktype & mask) != 0));
111			/* We multiply & then divide to prevent roundoffs on the floats.
112			* the doubling is to take into account the table and resistances
113			* are lower than they once were.
114			*/
115			prot_mult += (exp_prot_mult[i] * 200 * ob->resist[i]) / 100.0;
116			}
117	root	1.24
118	root	1.5	spec_mult += (0.3 * (QUERY_FLAG (ob, FLAG_SEE_INVISIBLE) != 0)) +
119			(0.5 * (QUERY_FLAG (ob, FLAG_SPLITTING) != 0)) +
120			(0.3 * (QUERY_FLAG (ob, FLAG_HITBACK) != 0)) +
121			(0.1 * (QUERY_FLAG (ob, FLAG_REFL_MISSILE) != 0)) +
122			(0.3 * (QUERY_FLAG (ob, FLAG_REFL_SPELL) != 0)) +
123			(1.0 * (QUERY_FLAG (ob, FLAG_NO_MAGIC) != 0)) +
124			(0.1 * (QUERY_FLAG (ob, FLAG_PICK_UP) != 0)) +
125			(0.1 * (QUERY_FLAG (ob, FLAG_USE_SCROLL) != 0)) +
126			(0.2 * (QUERY_FLAG (ob, FLAG_USE_RANGE) != 0)) + (0.1 * (QUERY_FLAG (ob, FLAG_USE_BOW) != 0));
127
128			exp = (ob->stats.maxhp < 5) ? 5 : ob->stats.maxhp;
129			exp *= (QUERY_FLAG (ob, FLAG_CAST_SPELL) && has_ability (ob)) ? (40 + (ob->stats.maxsp > 80 ? 80 : ob->stats.maxsp)) / 40 : 1;
130			exp = (80.0 / (70.0 + ob->stats.wc)) (80.0 / (70.0 + ob->stats.ac)) * (50.0 + ob->stats.dam) / 50.0;
131	elmex	1.1	exp = att_mult prot_mult * spec_mult;
132	root	1.25	exp *= 2.0 / (2.0 - min (ob->speed, 0.95));
133	root	1.5	exp *= (20.0 + ob->stats.Con) / 20.0;
134			if (QUERY_FLAG (ob, FLAG_STAND_STILL))
135	elmex	1.1	exp /= 2;
136
137	root	1.25	return exp;
138	elmex	1.1	}
139
140			/* This loads the experience table from the exp_table
141			* file. This tends to exit on any errors, since it
142			* populates the table as it goes along, so if there
143			* are errors, the table is likely in an inconsistent
144			* state.
145			*/
146	root	1.5	void
147	root	1.25	init_experience ()
148	elmex	1.1	{
149	root	1.5	char buf[MAX_BUF], *cp;
150			int lastlevel = 0, comp;
151			sint64 lastexp = -1, tmpexp;
152			FILE *fp;
153	elmex	1.1
154	root	1.5	sprintf (buf, "%s/exp_table", settings.confdir);
155
156			if ((fp = open_and_uncompress (buf, 0, &comp)) == NULL)
157			{
158			return;
159	elmex	1.1	}
160	root	1.5	while (fgets (buf, MAX_BUF - 1, fp) != NULL)
161			{
162			if (buf[0] == '#')
163			continue;
164
165			/* eliminate newline */
166			if ((cp = strrchr (buf, '\n')) != NULL)
167			*cp = '\0';
168
169			/* Skip over empty lines */
170			if (buf[0] == 0)
171			continue;
172			cp = buf;
173			while (isspace (cp) && cp != 0)
174			cp++;
175			if (!strncasecmp (cp, "max_level", 9))
176			{
177			if (settings.max_level)
178			{
179			LOG (llevDebug, "Got more than one max_level value from exp_table file?\n");
180			free (levels);
181			}
182			settings.max_level = atoi (cp + 9);
183			if (!settings.max_level)
184			{
185			LOG (llevDebug, "Got invalid max_level from exp_table file? %s\n", buf);
186			}
187			else
188			{
189			levels = (sint64 *) calloc (settings.max_level + 1, sizeof (sint64));
190	root	1.2	}
191			}
192	root	1.5	while (isdigit (cp) && cp != 0)
193			{
194			if (!settings.max_level)
195			{
196			LOG (llevError, "max_level is not set in exp_table file. Did you remember to update it?\n");
197			exit (1);
198	root	1.2	}
199
200	root	1.5	tmpexp = atoll (cp);
201			/* Do some sanity checking - if value is bogus, just exit because
202			* the table otherwise is probably in an inconsistent state
203			*/
204			if (tmpexp <= lastexp)
205			{
206	root	1.9	LOG (llevError, "Experience for level %d is lower than previous level (%" PRId64 " <= %" PRId64 ")\n", lastlevel + 1, tmpexp, lastexp);
207	root	1.5	exit (1);
208			}
209			lastlevel++;
210			if (lastlevel > settings.max_level)
211			{
212			LOG (llevError, "Too many levels specified in table (%d > %d)\n", lastlevel, settings.max_level);
213			exit (1);
214	root	1.2	}
215	root	1.5	levels[lastlevel] = tmpexp;
216			lastexp = tmpexp;
217			/* First, skip over the number we just processed. Then skip over
218			* any spaces, commas, etc.
219			*/
220			while (isdigit (cp) && cp != 0)
221			cp++;
222			while (!isdigit (cp) && cp != 0)
223			cp++;
224	root	1.2	}
225	elmex	1.1	}
226	root	1.5	close_and_delete (fp, comp);
227			if (lastlevel != settings.max_level && lastlevel != 0)
228			{
229			LOG (llevError, "Warning: exp_table does not have %d entries (%d)\n", settings.max_level, lastlevel);
230			exit (1);
231	elmex	1.1	}
232			}
233