server/server/c_range.C


/*
 * static char *rcsid_c_range_c =
 *   "$Id: c_range.C,v 1.5 2006-09-10 15:59:57 root Exp $";
 */

/*
    CrossFire, A Multiplayer game for X-windows

    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-devel@real-time.com
*/

/* This file deals with range related commands (casting, shooting,
 * throwing, etc.
 */

#include <global.h>
#ifndef __CEXTRACT__
# include <sproto.h>
#endif
#include <spells.h>
#include <skills.h>
#include <newclient.h>
#include <commands.h>


int
command_invoke (object *op, char *params)
{
  return command_cast_spell (op, params, 'i');
}

int
command_cast (object *op, char *params)
{
  return command_cast_spell (op, params, 'c');
}

int
command_prepare (object *op, char *params)
{
  return command_cast_spell (op, params, 'p');
}

/* Shows all spells that op knows.  If params is supplied, the must match
 * that.  Given there is more than one skill, we can't supply break
 * them down to cleric/wizardry.
 */
static void
show_matching_spells (object *op, char *params)
{
  object *spell;
  char spell_sort[NROFREALSPELLS][MAX_BUF], tmp[MAX_BUF], *cp;
  int num_found = 0, i;

  /* We go and see what spells the player has.  We put them
   * into the spell_sort array so that we can sort them -
   * we prefix the skill in the name so that the sorting
   * works better.
   */
  for (spell = op->inv; spell != NULL; spell = spell->below)
    {
      /* If it is a spell, and no params are passed, or they
       * match the name, process this spell.
       */
      if (spell->type == SPELL && (!params || !strncmp (params, spell->name, strlen (params))))
        {
          if (spell->path_attuned & op->path_denied)
            {
              sprintf (spell_sort[num_found++], "%s:%-22s %3s %3s", spell->skill ? &spell->skill : "generic", &spell->name, "den", "den");
            }
          else
            {
              sprintf (spell_sort[num_found++],
                       "%s:%-22s %3d %3d", spell->skill ? &spell->skill : "generic",
                       &spell->name, spell->level, SP_level_spellpoint_cost (op, spell, SPELL_HIGHEST));
            }
        }
    }
  if (!num_found)
    {
      /* If a matching string was passed along, now try it without that
       * string.  It is odd to do something like 'cast trans',
       * and it say you have no spells, when really, you do, but just
       * nothing that matches.
       */
      if (params)
        show_matching_spells (op, NULL);
      else
        new_draw_info (NDI_UNIQUE, 0, op, "You know no spells");
    }
  else
    {
      /* Note in the code below that we make some
       * presumptions that there will be a colon in the
       * string.  given the code above, this is always
       * the case.
       */
      qsort (spell_sort, num_found, MAX_BUF, (int (*)(const void *, const void *)) strcmp);
      strcpy (tmp, "asdfg");    /* Dummy string so initial compare fails */
      for (i = 0; i < num_found; i++)
        {
          /* Different skill name, so print banner */
          if (strncmp (tmp, spell_sort[i], strlen (tmp)))
            {
              strcpy (tmp, spell_sort[i]);
              cp = strchr (tmp, ':');
              *cp = '\0';
              new_draw_info (NDI_UNIQUE, 0, op, "");
              new_draw_info_format (NDI_UNIQUE, 0, op, "%s spells %.*s [lvl] [sp]", tmp, 12 - strlen (tmp), "              ");
            }
          new_draw_info (NDI_UNIQUE, 0, op, strchr (spell_sort[i], ':') + 1);
        }
    }
}

/* sets up to cast a spell.  op is the caster, params is the spell name,
 * and command is the first letter of the spell type (c=cast, i=invoke, 
 * p=prepare).  Invoke casts a spell immediately, where as cast (and I believe
 * prepare) just set up the range type.
 */
int
command_cast_spell (object *op, char *params, char command)
{
  int castnow = 0;
  char *cp;
  object *spob;

  if (command == 'i')
    castnow = 1;

  /* Remove control of the golem */
  if (op->contr->ranges[range_golem] != NULL)
    {
      if (op->contr->golem_count == op->contr->ranges[range_golem]->count)
        {
          remove_friendly_object (op->contr->ranges[range_golem]);
          remove_ob (op->contr->ranges[range_golem]);
          free_object (op->contr->ranges[range_golem]);
        }

      op->contr->ranges[range_golem] = NULL;
      op->contr->golem_count = 0;
    }

  if (params != NULL)
    {
      int spellnumber = 0;

      if ((spellnumber = atoi (params)))
        for (spob = op->inv; spob && spob->count != (tag_t) spellnumber; spob = spob->below)
          /* nop */;
      else
        spob = lookup_spell_by_name (op, params);

      if (spob && spob->type == SPELL)
        {
          /* Now grab any extra data, if there is any.  Forward pass
           * any 'of' delimiter
           */
          if (spellnumber)
            {
              /* if we passed a number, the options start at the second word */
              cp = strchr (params, ' ');
              if (cp)
                {
                  cp++;
                  if (!strncmp (cp, "of ", 3))
                    cp += 3;
                }
            }
          else if (strlen (params) > (size_t) strlen (spob->name))
            {
              cp = params + strlen (spob->name);
              *cp = 0;
              cp++;
              if (!strncmp (cp, "of ", 3))
                cp += 3;
            }
          else
            cp = NULL;

          if (spob->skill && !find_skill_by_name (op, spob->skill))
            {
              new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s!", &spob->skill, &spob->name);
              return 1;
            }

          if (castnow)
            cast_spell (op, op, op->facing, spob, cp);
          else
            {
              op->contr->ranges[range_magic] = spob;
              op->contr->shoottype = range_magic;

              if (cp != NULL)
                {
                  strncpy (op->contr->spellparam, cp, MAX_BUF);
                  op->contr->spellparam[MAX_BUF - 1] = '\0';
                }
              else
                op->contr->spellparam[0] = '\0';

              new_draw_info_format (NDI_UNIQUE, 0, op, "You ready the spell %s", &spob->name);
            }

          return 0;
        }                       /* else fall through to below and print spells */
    }                           /* params supplied */

  /* We get here if cast was given without options or we could not find
   * the requested spell.  List all the spells the player knows.
   */
  new_draw_info (NDI_UNIQUE, 0, op, "Cast what spell?  Choose one of:");
  show_matching_spells (op, params);
  return 1;
}

/**************************************************************************/

/* Returns TRUE if the range specified (int r) is legal - that is,
 * the character has an item that is equipped for that range type.
 * return 0 if there is no item of that range type that is usable.
 * This function could probably be simplified, eg, everything
 * should index into the ranges[] array.
 */

int
legal_range (object *op, int r)
{

  switch (r)
    {
        case range_none:       /* "Nothing" is always legal */
          return 1;
        case range_bow:
        case range_misc:
        case range_magic:      /* cast spells */
          if (op->contr->ranges[r])
            return 1;
          else
            return 0;

        case range_golem:      /* Use scrolls */
          if (op->contr->ranges[range_golem] && op->contr->ranges[range_golem]->count == op->contr->golem_count)
            return 1;
          else
            return 0;

        case range_skill:
          if (op->chosen_skill)
            return 1;
          else
            return 0;
    }
  /* No match above, must not be valid */
  return 0;
}

void
change_spell (object *op, char k)
{

  do
    {
      op->contr->shoottype = (rangetype) (op->contr->shoottype + ((k == '+') ? 1 : -1));
      if (op->contr->shoottype >= range_size)
        op->contr->shoottype = range_none;
      else if (op->contr->shoottype <= range_bottom)
        op->contr->shoottype = (rangetype) (range_size - 1);
    }
  while (!legal_range (op, op->contr->shoottype));

  /* Legal range has already checked that we have an appropriate item
   * that uses the slot, so we don't need to be too careful about 
   * checking the status of the object.
   */
  switch (op->contr->shoottype)
    {
        case range_none:
          new_draw_info (NDI_UNIQUE, 0, op, "No ranged attack chosen.");
          break;

        case range_golem:
          new_draw_info (NDI_UNIQUE, 0, op, "You regain control of your golem.");
          break;

        case range_bow:
          new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s and %s.", query_name (op->contr->ranges[range_bow]),
                                op->contr->ranges[range_bow]->race ? &op->contr->ranges[range_bow]->race : "nothing");
          break;

        case range_magic:
          new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to spells (%s).", &op->contr->ranges[range_magic]->name);
          break;

        case range_misc:
          new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s.", query_base_name (op->contr->ranges[range_misc], 0));
          break;

        case range_skill:
          new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to skill: %s", op->chosen_skill ? &op->chosen_skill->name : "none");
          break;

        default:
          break;
    }
}


int
command_rotateshoottype (object *op, char *params)
{
  if (!params)
    change_spell (op, '+');
  else
    change_spell (op, params[0]);
  return 0;
}
Revision:	1.6
Committed:	Tue Sep 12 17:23:01 2006 UTC (17 years, 9 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.5:	+9 -11 lines
Log Message:	indent
#	User	Rev	Content
1	root	1.5
2	elmex	1.1	/*
3			* static char *rcsid_c_range_c =
4	root	1.6	* "$Id: c_range.C,v 1.5 2006-09-10 15:59:57 root Exp $";
5	elmex	1.1	*/
6
7			/*
8			CrossFire, A Multiplayer game for X-windows
9
10			Copyright (C) 2002 Mark Wedel & Crossfire Development Team
11			Copyright (C) 1992 Frank Tore Johansen
12
13			This program is free software; you can redistribute it and/or modify
14			it under the terms of the GNU General Public License as published by
15			the Free Software Foundation; either version 2 of the License, or
16			(at your option) any later version.
17
18			This program is distributed in the hope that it will be useful,
19			but WITHOUT ANY WARRANTY; without even the implied warranty of
20			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21			GNU General Public License for more details.
22
23			You should have received a copy of the GNU General Public License
24			along with this program; if not, write to the Free Software
25			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26
27			The authors can be reached via e-mail at crossfire-devel@real-time.com
28			*/
29
30			/* This file deals with range related commands (casting, shooting,
31			* throwing, etc.
32			*/
33
34			#include <global.h>
35			#ifndef __CEXTRACT__
36	root	1.5	# include <sproto.h>
37	elmex	1.1	#endif
38			#include <spells.h>
39			#include <skills.h>
40			#include <newclient.h>
41			#include <commands.h>
42
43
44	root	1.5	int
45			command_invoke (object op, char params)
46	elmex	1.1	{
47	root	1.5	return command_cast_spell (op, params, 'i');
48	elmex	1.1	}
49
50	root	1.5	int
51			command_cast (object op, char params)
52	elmex	1.1	{
53	root	1.5	return command_cast_spell (op, params, 'c');
54	elmex	1.1	}
55
56	root	1.5	int
57			command_prepare (object op, char params)
58	elmex	1.1	{
59	root	1.5	return command_cast_spell (op, params, 'p');
60	elmex	1.1	}
61
62			/* Shows all spells that op knows. If params is supplied, the must match
63			* that. Given there is more than one skill, we can't supply break
64			* them down to cleric/wizardry.
65			*/
66	root	1.5	static void
67			show_matching_spells (object op, char params)
68	elmex	1.1	{
69	root	1.5	object *spell;
70			char spell_sort[NROFREALSPELLS][MAX_BUF], tmp[MAX_BUF], *cp;
71			int num_found = 0, i;
72
73			/* We go and see what spells the player has. We put them
74			* into the spell_sort array so that we can sort them -
75			* we prefix the skill in the name so that the sorting
76			* works better.
77			*/
78			for (spell = op->inv; spell != NULL; spell = spell->below)
79			{
80			/* If it is a spell, and no params are passed, or they
81			* match the name, process this spell.
82			*/
83			if (spell->type == SPELL && (!params \|\| !strncmp (params, spell->name, strlen (params))))
84			{
85			if (spell->path_attuned & op->path_denied)
86			{
87			sprintf (spell_sort[num_found++], "%s:%-22s %3s %3s", spell->skill ? &spell->skill : "generic", &spell->name, "den", "den");
88			}
89			else
90			{
91			sprintf (spell_sort[num_found++],
92			"%s:%-22s %3d %3d", spell->skill ? &spell->skill : "generic",
93			&spell->name, spell->level, SP_level_spellpoint_cost (op, spell, SPELL_HIGHEST));
94	root	1.2	}
95			}
96	elmex	1.1	}
97	root	1.5	if (!num_found)
98			{
99			/* If a matching string was passed along, now try it without that
100			* string. It is odd to do something like 'cast trans',
101			* and it say you have no spells, when really, you do, but just
102			* nothing that matches.
103			*/
104			if (params)
105			show_matching_spells (op, NULL);
106			else
107			new_draw_info (NDI_UNIQUE, 0, op, "You know no spells");
108			}
109			else
110			{
111			/* Note in the code below that we make some
112			* presumptions that there will be a colon in the
113			* string. given the code above, this is always
114			* the case.
115			*/
116			qsort (spell_sort, num_found, MAX_BUF, (int ()(const void , const void *)) strcmp);
117			strcpy (tmp, "asdfg"); /* Dummy string so initial compare fails */
118			for (i = 0; i < num_found; i++)
119			{
120			/* Different skill name, so print banner */
121			if (strncmp (tmp, spell_sort[i], strlen (tmp)))
122			{
123			strcpy (tmp, spell_sort[i]);
124			cp = strchr (tmp, ':');
125			*cp = '\0';
126			new_draw_info (NDI_UNIQUE, 0, op, "");
127			new_draw_info_format (NDI_UNIQUE, 0, op, "%s spells %.*s [lvl] [sp]", tmp, 12 - strlen (tmp), " ");
128	root	1.2	}
129	root	1.5	new_draw_info (NDI_UNIQUE, 0, op, strchr (spell_sort[i], ':') + 1);
130	root	1.2	}
131	elmex	1.1	}
132			}
133
134			/* sets up to cast a spell. op is the caster, params is the spell name,
135			* and command is the first letter of the spell type (c=cast, i=invoke,
136			* p=prepare). Invoke casts a spell immediately, where as cast (and I believe
137			* prepare) just set up the range type.
138			*/
139	root	1.5	int
140			command_cast_spell (object op, char params, char command)
141	elmex	1.1	{
142	root	1.5	int castnow = 0;
143			char *cp;
144			object *spob;
145
146			if (command == 'i')
147			castnow = 1;
148
149			/* Remove control of the golem */
150			if (op->contr->ranges[range_golem] != NULL)
151			{
152			if (op->contr->golem_count == op->contr->ranges[range_golem]->count)
153			{
154			remove_friendly_object (op->contr->ranges[range_golem]);
155			remove_ob (op->contr->ranges[range_golem]);
156			free_object (op->contr->ranges[range_golem]);
157	root	1.2	}
158	root	1.6
159	root	1.5	op->contr->ranges[range_golem] = NULL;
160			op->contr->golem_count = 0;
161	elmex	1.1	}
162
163	root	1.5	if (params != NULL)
164			{
165			int spellnumber = 0;
166
167			if ((spellnumber = atoi (params)))
168	root	1.6	for (spob = op->inv; spob && spob->count != (tag_t) spellnumber; spob = spob->below)
169			/* nop */;
170	root	1.5	else
171			spob = lookup_spell_by_name (op, params);
172
173			if (spob && spob->type == SPELL)
174			{
175			/* Now grab any extra data, if there is any. Forward pass
176			* any 'of' delimiter
177			*/
178			if (spellnumber)
179			{
180			/* if we passed a number, the options start at the second word */
181			cp = strchr (params, ' ');
182			if (cp)
183			{
184			cp++;
185			if (!strncmp (cp, "of ", 3))
186			cp += 3;
187	root	1.2	}
188			}
189	root	1.5	else if (strlen (params) > (size_t) strlen (spob->name))
190			{
191			cp = params + strlen (spob->name);
192			*cp = 0;
193			cp++;
194			if (!strncmp (cp, "of ", 3))
195			cp += 3;
196	root	1.2	}
197	root	1.5	else
198			cp = NULL;
199
200			if (spob->skill && !find_skill_by_name (op, spob->skill))
201			{
202			new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s!", &spob->skill, &spob->name);
203			return 1;
204			}
205
206			if (castnow)
207	root	1.6	cast_spell (op, op, op->facing, spob, cp);
208	root	1.5	else
209			{
210			op->contr->ranges[range_magic] = spob;
211			op->contr->shoottype = range_magic;
212	root	1.6
213	root	1.5	if (cp != NULL)
214			{
215			strncpy (op->contr->spellparam, cp, MAX_BUF);
216			op->contr->spellparam[MAX_BUF - 1] = '\0';
217			}
218			else
219	root	1.6	op->contr->spellparam[0] = '\0';
220
221	root	1.5	new_draw_info_format (NDI_UNIQUE, 0, op, "You ready the spell %s", &spob->name);
222	root	1.2	}
223	root	1.6
224	root	1.5	return 0;
225			} /* else fall through to below and print spells */
226			} /* params supplied */
227
228			/* We get here if cast was given without options or we could not find
229			* the requested spell. List all the spells the player knows.
230			*/
231			new_draw_info (NDI_UNIQUE, 0, op, "Cast what spell? Choose one of:");
232			show_matching_spells (op, params);
233			return 1;
234	elmex	1.1	}
235
236			/**************************************************************************/
237
238			/* Returns TRUE if the range specified (int r) is legal - that is,
239			* the character has an item that is equipped for that range type.
240			* return 0 if there is no item of that range type that is usable.
241			* This function could probably be simplified, eg, everything
242			* should index into the ranges[] array.
243			*/
244
245	root	1.5	int
246			legal_range (object *op, int r)
247			{
248	elmex	1.1
249	root	1.5	switch (r)
250			{
251			case range_none: /* "Nothing" is always legal */
252			return 1;
253	root	1.2	case range_bow:
254			case range_misc:
255	root	1.5	case range_magic: /* cast spells */
256			if (op->contr->ranges[r])
257			return 1;
258			else
259			return 0;
260
261			case range_golem: /* Use scrolls */
262			if (op->contr->ranges[range_golem] && op->contr->ranges[range_golem]->count == op->contr->golem_count)
263			return 1;
264			else
265			return 0;
266	root	1.2
267			case range_skill:
268	root	1.5	if (op->chosen_skill)
269			return 1;
270			else
271			return 0;
272	elmex	1.1	}
273	root	1.5	/* No match above, must not be valid */
274			return 0;
275	elmex	1.1	}
276
277	root	1.5	void
278			change_spell (object *op, char k)
279			{
280
281			do
282			{
283			op->contr->shoottype = (rangetype) (op->contr->shoottype + ((k == '+') ? 1 : -1));
284			if (op->contr->shoottype >= range_size)
285			op->contr->shoottype = range_none;
286			else if (op->contr->shoottype <= range_bottom)
287			op->contr->shoottype = (rangetype) (range_size - 1);
288			}
289			while (!legal_range (op, op->contr->shoottype));
290	elmex	1.1
291	root	1.5	/* Legal range has already checked that we have an appropriate item
292			* that uses the slot, so we don't need to be too careful about
293			* checking the status of the object.
294			*/
295			switch (op->contr->shoottype)
296			{
297	root	1.2	case range_none:
298	root	1.5	new_draw_info (NDI_UNIQUE, 0, op, "No ranged attack chosen.");
299			break;
300	root	1.2
301			case range_golem:
302	root	1.5	new_draw_info (NDI_UNIQUE, 0, op, "You regain control of your golem.");
303			break;
304	root	1.2
305			case range_bow:
306	root	1.5	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s and %s.", query_name (op->contr->ranges[range_bow]),
307			op->contr->ranges[range_bow]->race ? &op->contr->ranges[range_bow]->race : "nothing");
308			break;
309	root	1.2
310			case range_magic:
311	root	1.5	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to spells (%s).", &op->contr->ranges[range_magic]->name);
312			break;
313	root	1.2
314			case range_misc:
315	root	1.5	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s.", query_base_name (op->contr->ranges[range_misc], 0));
316			break;
317	root	1.2
318	root	1.5	case range_skill:
319			new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to skill: %s", op->chosen_skill ? &op->chosen_skill->name : "none");
320			break;
321	elmex	1.1
322	root	1.2	default:
323	root	1.5	break;
324	elmex	1.1	}
325			}
326
327
328	root	1.5	int
329			command_rotateshoottype (object op, char params)
330	elmex	1.1	{
331			if (!params)
332	root	1.5	change_spell (op, '+');
333	elmex	1.1	else
334	root	1.5	change_spell (op, params[0]);
335	elmex	1.1	return 0;
336			}