server/server/c_range.C

/*
    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@schmorp.de>
*/

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

#include <global.h>
#include <sproto.h>
#include <spells.h>
#include <skills.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])
    {
      op->contr->ranges[range_golem]->destroy ();
      op->contr->ranges[range_golem] = 0;
    }

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

      if ((spellnumber = atoi (params)))
        for (spob = op->inv; spob && spob->count != 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;
              assign (op->contr->spellparam, cp ? cp : "");
              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 */
          return !!op->contr->ranges[r];

        case range_golem:      /* Use scrolls */
          return !!op->contr->ranges[range_golem];

        case range_skill:
          return !!op->chosen_skill;
    }

  /* 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:	1.13
Committed:	Fri Dec 15 19:59:20 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.12:	+1 -4 lines
Log Message:	the rename for sanity campaign hits you died - renamed stuff - partially updated copyrights - some cleanups
#	Content
1	/*
2	CrossFire, A Multiplayer game for X-windows
3
4	Copyright (C) 2002 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/
23
24	/* This file deals with range related commands (casting, shooting,
25	* throwing, etc.
26	*/
27
28	#include <global.h>
29	#include <sproto.h>
30	#include <spells.h>
31	#include <skills.h>
32	#include <commands.h>
33
34	int
35	command_invoke (object op, char params)
36	{
37	return command_cast_spell (op, params, 'i');
38	}
39
40	int
41	command_cast (object op, char params)
42	{
43	return command_cast_spell (op, params, 'c');
44	}
45
46	int
47	command_prepare (object op, char params)
48	{
49	return command_cast_spell (op, params, 'p');
50	}
51
52	/* Shows all spells that op knows. If params is supplied, the must match
53	* that. Given there is more than one skill, we can't supply break
54	* them down to cleric/wizardry.
55	*/
56	static void
57	show_matching_spells (object op, char params)
58	{
59	object *spell;
60	char spell_sort[NROFREALSPELLS][MAX_BUF], tmp[MAX_BUF], *cp;
61	int num_found = 0, i;
62
63	/* We go and see what spells the player has. We put them
64	* into the spell_sort array so that we can sort them -
65	* we prefix the skill in the name so that the sorting
66	* works better.
67	*/
68	for (spell = op->inv; spell != NULL; spell = spell->below)
69	{
70	/* If it is a spell, and no params are passed, or they
71	* match the name, process this spell.
72	*/
73	if (spell->type == SPELL && (!params \|\| !strncmp (params, spell->name, strlen (params))))
74	{
75	if (spell->path_attuned & op->path_denied)
76	{
77	sprintf (spell_sort[num_found++], "%s:%-22s %3s %3s", spell->skill ? &spell->skill : "generic", &spell->name, "den", "den");
78	}
79	else
80	{
81	sprintf (spell_sort[num_found++],
82	"%s:%-22s %3d %3d", spell->skill ? &spell->skill : "generic",
83	&spell->name, spell->level, SP_level_spellpoint_cost (op, spell, SPELL_HIGHEST));
84	}
85	}
86	}
87	if (!num_found)
88	{
89	/* If a matching string was passed along, now try it without that
90	* string. It is odd to do something like 'cast trans',
91	* and it say you have no spells, when really, you do, but just
92	* nothing that matches.
93	*/
94	if (params)
95	show_matching_spells (op, NULL);
96	else
97	new_draw_info (NDI_UNIQUE, 0, op, "You know no spells");
98	}
99	else
100	{
101	/* Note in the code below that we make some
102	* presumptions that there will be a colon in the
103	* string. given the code above, this is always
104	* the case.
105	*/
106	qsort (spell_sort, num_found, MAX_BUF, (int ()(const void , const void *)) strcmp);
107	strcpy (tmp, "asdfg"); /* Dummy string so initial compare fails */
108	for (i = 0; i < num_found; i++)
109	{
110	/* Different skill name, so print banner */
111	if (strncmp (tmp, spell_sort[i], strlen (tmp)))
112	{
113	strcpy (tmp, spell_sort[i]);
114	cp = strchr (tmp, ':');
115	*cp = '\0';
116	new_draw_info (NDI_UNIQUE, 0, op, "");
117	new_draw_info_format (NDI_UNIQUE, 0, op, "%s spells %.*s [lvl] [sp]", tmp, 12 - strlen (tmp), " ");
118	}
119	new_draw_info (NDI_UNIQUE, 0, op, strchr (spell_sort[i], ':') + 1);
120	}
121	}
122	}
123
124	/* sets up to cast a spell. op is the caster, params is the spell name,
125	* and command is the first letter of the spell type (c=cast, i=invoke,
126	* p=prepare). Invoke casts a spell immediately, where as cast (and I believe
127	* prepare) just set up the range type.
128	*/
129	int
130	command_cast_spell (object op, char params, char command)
131	{
132	int castnow = 0;
133	char *cp;
134	object *spob;
135
136	if (command == 'i')
137	castnow = 1;
138
139	/* Remove control of the golem */
140	if (op->contr->ranges[range_golem])
141	{
142	op->contr->ranges[range_golem]->destroy ();
143	op->contr->ranges[range_golem] = 0;
144	}
145
146	if (params != NULL)
147	{
148	int spellnumber = 0;
149
150	if ((spellnumber = atoi (params)))
151	for (spob = op->inv; spob && spob->count != spellnumber; spob = spob->below)
152	/* nop */;
153	else
154	spob = lookup_spell_by_name (op, params);
155
156	if (spob && spob->type == SPELL)
157	{
158	/* Now grab any extra data, if there is any. Forward pass
159	* any 'of' delimiter
160	*/
161	if (spellnumber)
162	{
163	/* if we passed a number, the options start at the second word */
164	cp = strchr (params, ' ');
165	if (cp)
166	{
167	cp++;
168	if (!strncmp (cp, "of ", 3))
169	cp += 3;
170	}
171	}
172	else if (strlen (params) > (size_t) strlen (spob->name))
173	{
174	cp = params + strlen (spob->name);
175	*cp = 0;
176	cp++;
177	if (!strncmp (cp, "of ", 3))
178	cp += 3;
179	}
180	else
181	cp = NULL;
182
183	if (spob->skill && !find_skill_by_name (op, spob->skill))
184	{
185	new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s!", &spob->skill, &spob->name);
186	return 1;
187	}
188
189	if (castnow)
190	cast_spell (op, op, op->facing, spob, cp);
191	else
192	{
193	op->contr->ranges[range_magic] = spob;
194	op->contr->shoottype = range_magic;
195	assign (op->contr->spellparam, cp ? cp : "");
196	new_draw_info_format (NDI_UNIQUE, 0, op, "You ready the spell %s", &spob->name);
197	}
198
199	return 0;
200	} /* else fall through to below and print spells */
201	} /* params supplied */
202
203	/* We get here if cast was given without options or we could not find
204	* the requested spell. List all the spells the player knows.
205	*/
206	new_draw_info (NDI_UNIQUE, 0, op, "Cast what spell? Choose one of:");
207	show_matching_spells (op, params);
208	return 1;
209	}
210
211	/**************************************************************************/
212
213	/* Returns TRUE if the range specified (int r) is legal - that is,
214	* the character has an item that is equipped for that range type.
215	* return 0 if there is no item of that range type that is usable.
216	* This function could probably be simplified, eg, everything
217	* should index into the ranges[] array.
218	*/
219
220	int
221	legal_range (object *op, int r)
222	{
223
224	switch (r)
225	{
226	case range_none: /* "Nothing" is always legal */
227	return 1;
228
229	case range_bow:
230	case range_misc:
231	case range_magic: /* cast spells */
232	return !!op->contr->ranges[r];
233
234	case range_golem: /* Use scrolls */
235	return !!op->contr->ranges[range_golem];
236
237	case range_skill:
238	return !!op->chosen_skill;
239	}
240
241	/* No match above, must not be valid */
242	return 0;
243	}
244
245	void
246	change_spell (object *op, char k)
247	{
248
249	do
250	{
251	op->contr->shoottype = (rangetype) (op->contr->shoottype + ((k == '+') ? 1 : -1));
252	if (op->contr->shoottype >= range_size)
253	op->contr->shoottype = range_none;
254	else if (op->contr->shoottype <= range_bottom)
255	op->contr->shoottype = (rangetype) (range_size - 1);
256	}
257	while (!legal_range (op, op->contr->shoottype));
258
259	/* Legal range has already checked that we have an appropriate item
260	* that uses the slot, so we don't need to be too careful about
261	* checking the status of the object.
262	*/
263	switch (op->contr->shoottype)
264	{
265	case range_none:
266	new_draw_info (NDI_UNIQUE, 0, op, "No ranged attack chosen.");
267	break;
268
269	case range_golem:
270	new_draw_info (NDI_UNIQUE, 0, op, "You regain control of your golem.");
271	break;
272
273	case range_bow:
274	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s and %s.", query_name (op->contr->ranges[range_bow]),
275	op->contr->ranges[range_bow]->race ? &op->contr->ranges[range_bow]->race : "nothing");
276	break;
277
278	case range_magic:
279	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to spells (%s).", &op->contr->ranges[range_magic]->name);
280	break;
281
282	case range_misc:
283	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s.", query_base_name (op->contr->ranges[range_misc], 0));
284	break;
285
286	case range_skill:
287	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to skill: %s", op->chosen_skill ? &op->chosen_skill->name : "none");
288	break;
289
290	default:
291	break;
292	}
293	}
294
295
296	int
297	command_rotateshoottype (object op, char params)
298	{
299	if (!params)
300	change_spell (op, '+');
301	else
302	change_spell (op, params[0]);
303	return 0;
304	}