server/common/exp.C

/*
 * CrossFire, A Multiplayer game for X-windows
 * 
 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
 * 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 at <crossfire@schmorp.de>
 */

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

sint64 *levels;

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 */
};

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 */
};

/*
 * 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 - ((fabs (ob->speed) < 0.95) ? fabs (ob->speed) : 0.95));
  exp *= (20.0 + ob->stats.Con) / 20.0;
  if (QUERY_FLAG (ob, FLAG_STAND_STILL))
    exp /= 2;

  return (int) exp;
}

/*
 * Returns true if the monster specified has any innate abilities.
 */

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;
}

/* 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 (void)
{
  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);
    }
}

/* Dump the table - useful in terms of debugging to make sure the
 * format of the exp_table is correct.
 */

void
dump_experience ()
{
  int i;

  for (i = 1; i <= settings.max_level; i++)
    {
      fprintf (logfile, "%4d %20lld\n", i, (long long) levels[i]);
    }
  exit (0);
}
Revision:	1.12
Committed:	Sun Jan 21 21:28:27 2007 UTC (17 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_0
Changes since 1.11:	+1 -1 lines
Log Message:	mark watchers as reentrant, some FABS => fabs
#	User	Rev	Content
1	elmex	1.1	/*
2	pippijn	1.11	* CrossFire, A Multiplayer game for X-windows
3			*
4			* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
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			* The authors can be reached via e-mail at <crossfire@schmorp.de>
23			*/
24	elmex	1.1
25			#include <stdio.h>
26			#include <global.h>
27
28			sint64 *levels;
29
30	root	1.5	float exp_att_mult[NROFATTACKS + 2] = {
31			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	1.5	float exp_prot_mult[NROFATTACKS + 2] = {
54			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			* new_exp() is an alternative way to calculate experience based
78			* on the ability of a monster.
79			* It's far from perfect, and doesn't consider everything which
80			* can be considered, thus it's only used in debugging.
81			* this is only used with one of the dumpflags,
82			* and not anyplace in the code.
83			*/
84	root	1.5
85			int
86			new_exp (const object *ob)
87			{
88			double att_mult, prot_mult, spec_mult;
89			double exp;
90			int i;
91			long mask = 1;
92
93			att_mult = prot_mult = spec_mult = 1.0;
94			for (i = 0; i < NROFATTACKS; i++)
95			{
96			mask = 1 << i;
97			att_mult += (exp_att_mult[i] * ((ob->attacktype & mask) != 0));
98			/* We multiply & then divide to prevent roundoffs on the floats.
99			* the doubling is to take into account the table and resistances
100			* are lower than they once were.
101			*/
102			prot_mult += (exp_prot_mult[i] * 200 * ob->resist[i]) / 100.0;
103			}
104			spec_mult += (0.3 * (QUERY_FLAG (ob, FLAG_SEE_INVISIBLE) != 0)) +
105			(0.5 * (QUERY_FLAG (ob, FLAG_SPLITTING) != 0)) +
106			(0.3 * (QUERY_FLAG (ob, FLAG_HITBACK) != 0)) +
107			(0.1 * (QUERY_FLAG (ob, FLAG_REFL_MISSILE) != 0)) +
108			(0.3 * (QUERY_FLAG (ob, FLAG_REFL_SPELL) != 0)) +
109			(1.0 * (QUERY_FLAG (ob, FLAG_NO_MAGIC) != 0)) +
110			(0.1 * (QUERY_FLAG (ob, FLAG_PICK_UP) != 0)) +
111			(0.1 * (QUERY_FLAG (ob, FLAG_USE_SCROLL) != 0)) +
112			(0.2 * (QUERY_FLAG (ob, FLAG_USE_RANGE) != 0)) + (0.1 * (QUERY_FLAG (ob, FLAG_USE_BOW) != 0));
113
114			exp = (ob->stats.maxhp < 5) ? 5 : ob->stats.maxhp;
115			exp *= (QUERY_FLAG (ob, FLAG_CAST_SPELL) && has_ability (ob)) ? (40 + (ob->stats.maxsp > 80 ? 80 : ob->stats.maxsp)) / 40 : 1;
116			exp = (80.0 / (70.0 + ob->stats.wc)) (80.0 / (70.0 + ob->stats.ac)) * (50.0 + ob->stats.dam) / 50.0;
117	elmex	1.1	exp = att_mult prot_mult * spec_mult;
118	root	1.12	exp *= 2.0 / (2.0 - ((fabs (ob->speed) < 0.95) ? fabs (ob->speed) : 0.95));
119	root	1.5	exp *= (20.0 + ob->stats.Con) / 20.0;
120			if (QUERY_FLAG (ob, FLAG_STAND_STILL))
121	elmex	1.1	exp /= 2;
122
123			return (int) exp;
124			}
125
126			/*
127			* Returns true if the monster specified has any innate abilities.
128			*/
129
130	root	1.5	int
131			has_ability (const object *ob)
132			{
133			object *tmp;
134	elmex	1.1
135	root	1.5	for (tmp = ob->inv; tmp != NULL; tmp = tmp->below)
136			if (tmp->type == SPELL \|\| tmp->type == SPELLBOOK)
137			return true;
138			return false;
139	elmex	1.1	}
140
141			/* This loads the experience table from the exp_table
142			* file. This tends to exit on any errors, since it
143			* populates the table as it goes along, so if there
144			* are errors, the table is likely in an inconsistent
145			* state.
146			*/
147	root	1.5	void
148			init_experience (void)
149	elmex	1.1	{
150	root	1.5	char buf[MAX_BUF], *cp;
151			int lastlevel = 0, comp;
152			sint64 lastexp = -1, tmpexp;
153			FILE *fp;
154	elmex	1.1
155
156	root	1.5	sprintf (buf, "%s/exp_table", settings.confdir);
157
158			if ((fp = open_and_uncompress (buf, 0, &comp)) == NULL)
159			{
160			return;
161	elmex	1.1	}
162	root	1.5	while (fgets (buf, MAX_BUF - 1, fp) != NULL)
163			{
164			if (buf[0] == '#')
165			continue;
166
167			/* eliminate newline */
168			if ((cp = strrchr (buf, '\n')) != NULL)
169			*cp = '\0';
170
171			/* Skip over empty lines */
172			if (buf[0] == 0)
173			continue;
174			cp = buf;
175			while (isspace (cp) && cp != 0)
176			cp++;
177			if (!strncasecmp (cp, "max_level", 9))
178			{
179			if (settings.max_level)
180			{
181			LOG (llevDebug, "Got more than one max_level value from exp_table file?\n");
182			free (levels);
183			}
184			settings.max_level = atoi (cp + 9);
185			if (!settings.max_level)
186			{
187			LOG (llevDebug, "Got invalid max_level from exp_table file? %s\n", buf);
188			}
189			else
190			{
191			levels = (sint64 *) calloc (settings.max_level + 1, sizeof (sint64));
192	root	1.2	}
193			}
194	root	1.5	while (isdigit (cp) && cp != 0)
195			{
196			if (!settings.max_level)
197			{
198			LOG (llevError, "max_level is not set in exp_table file. Did you remember to update it?\n");
199			exit (1);
200	root	1.2	}
201
202	root	1.5	tmpexp = atoll (cp);
203			/* Do some sanity checking - if value is bogus, just exit because
204			* the table otherwise is probably in an inconsistent state
205			*/
206			if (tmpexp <= lastexp)
207			{
208	root	1.9	LOG (llevError, "Experience for level %d is lower than previous level (%" PRId64 " <= %" PRId64 ")\n", lastlevel + 1, tmpexp, lastexp);
209	root	1.5	exit (1);
210			}
211			lastlevel++;
212			if (lastlevel > settings.max_level)
213			{
214			LOG (llevError, "Too many levels specified in table (%d > %d)\n", lastlevel, settings.max_level);
215			exit (1);
216	root	1.2	}
217	root	1.5	levels[lastlevel] = tmpexp;
218			lastexp = tmpexp;
219			/* First, skip over the number we just processed. Then skip over
220			* any spaces, commas, etc.
221			*/
222			while (isdigit (cp) && cp != 0)
223			cp++;
224			while (!isdigit (cp) && cp != 0)
225			cp++;
226	root	1.2	}
227	elmex	1.1	}
228	root	1.5	close_and_delete (fp, comp);
229			if (lastlevel != settings.max_level && lastlevel != 0)
230			{
231			LOG (llevError, "Warning: exp_table does not have %d entries (%d)\n", settings.max_level, lastlevel);
232			exit (1);
233	elmex	1.1	}
234			}
235
236			/* Dump the table - useful in terms of debugging to make sure the
237			* format of the exp_table is correct.
238			*/
239
240	root	1.5	void
241			dump_experience ()
242	elmex	1.1	{
243	root	1.5	int i;
244	elmex	1.1
245	root	1.5	for (i = 1; i <= settings.max_level; i++)
246			{
247			fprintf (logfile, "%4d %20lld\n", i, (long long) levels[i]);
248	elmex	1.1	}
249	root	1.5	exit (0);
250	elmex	1.1	}