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
#	Content
1
2	/*
3	* static char *rcsid_c_range_c =
4	* "$Id: c_range.C,v 1.5 2006-09-10 15:59:57 root Exp $";
5	*/
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	# include <sproto.h>
37	#endif
38	#include <spells.h>
39	#include <skills.h>
40	#include <newclient.h>
41	#include <commands.h>
42
43
44	int
45	command_invoke (object op, char params)
46	{
47	return command_cast_spell (op, params, 'i');
48	}
49
50	int
51	command_cast (object op, char params)
52	{
53	return command_cast_spell (op, params, 'c');
54	}
55
56	int
57	command_prepare (object op, char params)
58	{
59	return command_cast_spell (op, params, 'p');
60	}
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	static void
67	show_matching_spells (object op, char params)
68	{
69	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	}
95	}
96	}
97	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	}
129	new_draw_info (NDI_UNIQUE, 0, op, strchr (spell_sort[i], ':') + 1);
130	}
131	}
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	int
140	command_cast_spell (object op, char params, char command)
141	{
142	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	}
158
159	op->contr->ranges[range_golem] = NULL;
160	op->contr->golem_count = 0;
161	}
162
163	if (params != NULL)
164	{
165	int spellnumber = 0;
166
167	if ((spellnumber = atoi (params)))
168	for (spob = op->inv; spob && spob->count != (tag_t) spellnumber; spob = spob->below)
169	/* nop */;
170	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	}
188	}
189	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	}
197	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	cast_spell (op, op, op->facing, spob, cp);
208	else
209	{
210	op->contr->ranges[range_magic] = spob;
211	op->contr->shoottype = range_magic;
212
213	if (cp != NULL)
214	{
215	strncpy (op->contr->spellparam, cp, MAX_BUF);
216	op->contr->spellparam[MAX_BUF - 1] = '\0';
217	}
218	else
219	op->contr->spellparam[0] = '\0';
220
221	new_draw_info_format (NDI_UNIQUE, 0, op, "You ready the spell %s", &spob->name);
222	}
223
224	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	}
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	int
246	legal_range (object *op, int r)
247	{
248
249	switch (r)
250	{
251	case range_none: /* "Nothing" is always legal */
252	return 1;
253	case range_bow:
254	case range_misc:
255	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
267	case range_skill:
268	if (op->chosen_skill)
269	return 1;
270	else
271	return 0;
272	}
273	/* No match above, must not be valid */
274	return 0;
275	}
276
277	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
291	/* 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	case range_none:
298	new_draw_info (NDI_UNIQUE, 0, op, "No ranged attack chosen.");
299	break;
300
301	case range_golem:
302	new_draw_info (NDI_UNIQUE, 0, op, "You regain control of your golem.");
303	break;
304
305	case range_bow:
306	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
310	case range_magic:
311	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to spells (%s).", &op->contr->ranges[range_magic]->name);
312	break;
313
314	case range_misc:
315	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s.", query_base_name (op->contr->ranges[range_misc], 0));
316	break;
317
318	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
322	default:
323	break;
324	}
325	}
326
327
328	int
329	command_rotateshoottype (object op, char params)
330	{
331	if (!params)
332	change_spell (op, '+');
333	else
334	change_spell (op, params[0]);
335	return 0;
336	}