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, 6 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
#	User	Rev	Content
1	elmex	1.1	/*
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	root	1.8	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	elmex	1.1	*/
23
24			/* This file deals with range related commands (casting, shooting,
25			* throwing, etc.
26			*/
27
28			#include <global.h>
29	root	1.13	#include <sproto.h>
30	elmex	1.1	#include <spells.h>
31			#include <skills.h>
32			#include <commands.h>
33
34	root	1.5	int
35			command_invoke (object op, char params)
36	elmex	1.1	{
37	root	1.5	return command_cast_spell (op, params, 'i');
38	elmex	1.1	}
39
40	root	1.5	int
41			command_cast (object op, char params)
42	elmex	1.1	{
43	root	1.5	return command_cast_spell (op, params, 'c');
44	elmex	1.1	}
45
46	root	1.5	int
47			command_prepare (object op, char params)
48	elmex	1.1	{
49	root	1.5	return command_cast_spell (op, params, 'p');
50	elmex	1.1	}
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	root	1.5	static void
57			show_matching_spells (object op, char params)
58	elmex	1.1	{
59	root	1.5	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	root	1.2	}
85			}
86	elmex	1.1	}
87	root	1.5	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	root	1.2	}
119	root	1.5	new_draw_info (NDI_UNIQUE, 0, op, strchr (spell_sort[i], ':') + 1);
120	root	1.2	}
121	elmex	1.1	}
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	root	1.5	int
130			command_cast_spell (object op, char params, char command)
131	elmex	1.1	{
132	root	1.5	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	root	1.10	if (op->contr->ranges[range_golem])
141	root	1.5	{
142	root	1.12	op->contr->ranges[range_golem]->destroy ();
143	root	1.10	op->contr->ranges[range_golem] = 0;
144	elmex	1.1	}
145
146	root	1.5	if (params != NULL)
147			{
148			int spellnumber = 0;
149
150			if ((spellnumber = atoi (params)))
151	root	1.9	for (spob = op->inv; spob && spob->count != spellnumber; spob = spob->below)
152	root	1.6	/* nop */;
153	root	1.5	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	root	1.2	}
171			}
172	root	1.5	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	root	1.2	}
180	root	1.5	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	root	1.6	cast_spell (op, op, op->facing, spob, cp);
191	root	1.5	else
192			{
193			op->contr->ranges[range_magic] = spob;
194			op->contr->shoottype = range_magic;
195	root	1.7	assign (op->contr->spellparam, cp ? cp : "");
196	root	1.5	new_draw_info_format (NDI_UNIQUE, 0, op, "You ready the spell %s", &spob->name);
197	root	1.2	}
198	root	1.6
199	root	1.5	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	elmex	1.1	}
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	root	1.5	int
221			legal_range (object *op, int r)
222			{
223	elmex	1.1
224	root	1.5	switch (r)
225			{
226			case range_none: /* "Nothing" is always legal */
227			return 1;
228	root	1.10
229	root	1.2	case range_bow:
230			case range_misc:
231	root	1.5	case range_magic: /* cast spells */
232	root	1.10	return !!op->contr->ranges[r];
233	root	1.5
234			case range_golem: /* Use scrolls */
235	root	1.10	return !!op->contr->ranges[range_golem];
236	root	1.2
237			case range_skill:
238	root	1.10	return !!op->chosen_skill;
239	elmex	1.1	}
240	root	1.10
241	root	1.5	/* No match above, must not be valid */
242			return 0;
243	elmex	1.1	}
244
245	root	1.5	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	elmex	1.1
259	root	1.5	/* 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	root	1.2	case range_none:
266	root	1.5	new_draw_info (NDI_UNIQUE, 0, op, "No ranged attack chosen.");
267			break;
268	root	1.2
269			case range_golem:
270	root	1.5	new_draw_info (NDI_UNIQUE, 0, op, "You regain control of your golem.");
271			break;
272	root	1.2
273			case range_bow:
274	root	1.5	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	root	1.2
278			case range_magic:
279	root	1.5	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to spells (%s).", &op->contr->ranges[range_magic]->name);
280			break;
281	root	1.2
282			case range_misc:
283	root	1.5	new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s.", query_base_name (op->contr->ranges[range_misc], 0));
284			break;
285	root	1.2
286	root	1.5	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	elmex	1.1
290	root	1.2	default:
291	root	1.5	break;
292	elmex	1.1	}
293			}
294
295
296	root	1.5	int
297			command_rotateshoottype (object op, char params)
298	elmex	1.1	{
299			if (!params)
300	root	1.5	change_spell (op, '+');
301	elmex	1.1	else
302	root	1.5	change_spell (op, params[0]);
303	elmex	1.1	return 0;
304			}