| 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 |
#ifndef __CEXTRACT__ |
| 30 |
# include <sproto.h> |
| 31 |
#endif |
| 32 |
#include <spells.h> |
| 33 |
#include <skills.h> |
| 34 |
#include <newclient.h> |
| 35 |
#include <commands.h> |
| 36 |
|
| 37 |
int |
| 38 |
command_invoke (object *op, char *params) |
| 39 |
{ |
| 40 |
return command_cast_spell (op, params, 'i'); |
| 41 |
} |
| 42 |
|
| 43 |
int |
| 44 |
command_cast (object *op, char *params) |
| 45 |
{ |
| 46 |
return command_cast_spell (op, params, 'c'); |
| 47 |
} |
| 48 |
|
| 49 |
int |
| 50 |
command_prepare (object *op, char *params) |
| 51 |
{ |
| 52 |
return command_cast_spell (op, params, 'p'); |
| 53 |
} |
| 54 |
|
| 55 |
/* Shows all spells that op knows. If params is supplied, the must match |
| 56 |
* that. Given there is more than one skill, we can't supply break |
| 57 |
* them down to cleric/wizardry. |
| 58 |
*/ |
| 59 |
static void |
| 60 |
show_matching_spells (object *op, char *params) |
| 61 |
{ |
| 62 |
object *spell; |
| 63 |
char spell_sort[NROFREALSPELLS][MAX_BUF], tmp[MAX_BUF], *cp; |
| 64 |
int num_found = 0, i; |
| 65 |
|
| 66 |
/* We go and see what spells the player has. We put them |
| 67 |
* into the spell_sort array so that we can sort them - |
| 68 |
* we prefix the skill in the name so that the sorting |
| 69 |
* works better. |
| 70 |
*/ |
| 71 |
for (spell = op->inv; spell != NULL; spell = spell->below) |
| 72 |
{ |
| 73 |
/* If it is a spell, and no params are passed, or they |
| 74 |
* match the name, process this spell. |
| 75 |
*/ |
| 76 |
if (spell->type == SPELL && (!params || !strncmp (params, spell->name, strlen (params)))) |
| 77 |
{ |
| 78 |
if (spell->path_attuned & op->path_denied) |
| 79 |
{ |
| 80 |
sprintf (spell_sort[num_found++], "%s:%-22s %3s %3s", spell->skill ? &spell->skill : "generic", &spell->name, "den", "den"); |
| 81 |
} |
| 82 |
else |
| 83 |
{ |
| 84 |
sprintf (spell_sort[num_found++], |
| 85 |
"%s:%-22s %3d %3d", spell->skill ? &spell->skill : "generic", |
| 86 |
&spell->name, spell->level, SP_level_spellpoint_cost (op, spell, SPELL_HIGHEST)); |
| 87 |
} |
| 88 |
} |
| 89 |
} |
| 90 |
if (!num_found) |
| 91 |
{ |
| 92 |
/* If a matching string was passed along, now try it without that |
| 93 |
* string. It is odd to do something like 'cast trans', |
| 94 |
* and it say you have no spells, when really, you do, but just |
| 95 |
* nothing that matches. |
| 96 |
*/ |
| 97 |
if (params) |
| 98 |
show_matching_spells (op, NULL); |
| 99 |
else |
| 100 |
new_draw_info (NDI_UNIQUE, 0, op, "You know no spells"); |
| 101 |
} |
| 102 |
else |
| 103 |
{ |
| 104 |
/* Note in the code below that we make some |
| 105 |
* presumptions that there will be a colon in the |
| 106 |
* string. given the code above, this is always |
| 107 |
* the case. |
| 108 |
*/ |
| 109 |
qsort (spell_sort, num_found, MAX_BUF, (int (*)(const void *, const void *)) strcmp); |
| 110 |
strcpy (tmp, "asdfg"); /* Dummy string so initial compare fails */ |
| 111 |
for (i = 0; i < num_found; i++) |
| 112 |
{ |
| 113 |
/* Different skill name, so print banner */ |
| 114 |
if (strncmp (tmp, spell_sort[i], strlen (tmp))) |
| 115 |
{ |
| 116 |
strcpy (tmp, spell_sort[i]); |
| 117 |
cp = strchr (tmp, ':'); |
| 118 |
*cp = '\0'; |
| 119 |
new_draw_info (NDI_UNIQUE, 0, op, ""); |
| 120 |
new_draw_info_format (NDI_UNIQUE, 0, op, "%s spells %.*s [lvl] [sp]", tmp, 12 - strlen (tmp), " "); |
| 121 |
} |
| 122 |
new_draw_info (NDI_UNIQUE, 0, op, strchr (spell_sort[i], ':') + 1); |
| 123 |
} |
| 124 |
} |
| 125 |
} |
| 126 |
|
| 127 |
/* sets up to cast a spell. op is the caster, params is the spell name, |
| 128 |
* and command is the first letter of the spell type (c=cast, i=invoke, |
| 129 |
* p=prepare). Invoke casts a spell immediately, where as cast (and I believe |
| 130 |
* prepare) just set up the range type. |
| 131 |
*/ |
| 132 |
int |
| 133 |
command_cast_spell (object *op, char *params, char command) |
| 134 |
{ |
| 135 |
int castnow = 0; |
| 136 |
char *cp; |
| 137 |
object *spob; |
| 138 |
|
| 139 |
if (command == 'i') |
| 140 |
castnow = 1; |
| 141 |
|
| 142 |
/* Remove control of the golem */ |
| 143 |
if (op->contr->ranges[range_golem]) |
| 144 |
{ |
| 145 |
op->contr->ranges[range_golem]->destroy (); |
| 146 |
op->contr->ranges[range_golem] = 0; |
| 147 |
} |
| 148 |
|
| 149 |
if (params != NULL) |
| 150 |
{ |
| 151 |
int spellnumber = 0; |
| 152 |
|
| 153 |
if ((spellnumber = atoi (params))) |
| 154 |
for (spob = op->inv; spob && spob->count != spellnumber; spob = spob->below) |
| 155 |
/* nop */; |
| 156 |
else |
| 157 |
spob = lookup_spell_by_name (op, params); |
| 158 |
|
| 159 |
if (spob && spob->type == SPELL) |
| 160 |
{ |
| 161 |
/* Now grab any extra data, if there is any. Forward pass |
| 162 |
* any 'of' delimiter |
| 163 |
*/ |
| 164 |
if (spellnumber) |
| 165 |
{ |
| 166 |
/* if we passed a number, the options start at the second word */ |
| 167 |
cp = strchr (params, ' '); |
| 168 |
if (cp) |
| 169 |
{ |
| 170 |
cp++; |
| 171 |
if (!strncmp (cp, "of ", 3)) |
| 172 |
cp += 3; |
| 173 |
} |
| 174 |
} |
| 175 |
else if (strlen (params) > (size_t) strlen (spob->name)) |
| 176 |
{ |
| 177 |
cp = params + strlen (spob->name); |
| 178 |
*cp = 0; |
| 179 |
cp++; |
| 180 |
if (!strncmp (cp, "of ", 3)) |
| 181 |
cp += 3; |
| 182 |
} |
| 183 |
else |
| 184 |
cp = NULL; |
| 185 |
|
| 186 |
if (spob->skill && !find_skill_by_name (op, spob->skill)) |
| 187 |
{ |
| 188 |
new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s!", &spob->skill, &spob->name); |
| 189 |
return 1; |
| 190 |
} |
| 191 |
|
| 192 |
if (castnow) |
| 193 |
cast_spell (op, op, op->facing, spob, cp); |
| 194 |
else |
| 195 |
{ |
| 196 |
op->contr->ranges[range_magic] = spob; |
| 197 |
op->contr->shoottype = range_magic; |
| 198 |
assign (op->contr->spellparam, cp ? cp : ""); |
| 199 |
new_draw_info_format (NDI_UNIQUE, 0, op, "You ready the spell %s", &spob->name); |
| 200 |
} |
| 201 |
|
| 202 |
return 0; |
| 203 |
} /* else fall through to below and print spells */ |
| 204 |
} /* params supplied */ |
| 205 |
|
| 206 |
/* We get here if cast was given without options or we could not find |
| 207 |
* the requested spell. List all the spells the player knows. |
| 208 |
*/ |
| 209 |
new_draw_info (NDI_UNIQUE, 0, op, "Cast what spell? Choose one of:"); |
| 210 |
show_matching_spells (op, params); |
| 211 |
return 1; |
| 212 |
} |
| 213 |
|
| 214 |
/**************************************************************************/ |
| 215 |
|
| 216 |
/* Returns TRUE if the range specified (int r) is legal - that is, |
| 217 |
* the character has an item that is equipped for that range type. |
| 218 |
* return 0 if there is no item of that range type that is usable. |
| 219 |
* This function could probably be simplified, eg, everything |
| 220 |
* should index into the ranges[] array. |
| 221 |
*/ |
| 222 |
|
| 223 |
int |
| 224 |
legal_range (object *op, int r) |
| 225 |
{ |
| 226 |
|
| 227 |
switch (r) |
| 228 |
{ |
| 229 |
case range_none: /* "Nothing" is always legal */ |
| 230 |
return 1; |
| 231 |
|
| 232 |
case range_bow: |
| 233 |
case range_misc: |
| 234 |
case range_magic: /* cast spells */ |
| 235 |
return !!op->contr->ranges[r]; |
| 236 |
|
| 237 |
case range_golem: /* Use scrolls */ |
| 238 |
return !!op->contr->ranges[range_golem]; |
| 239 |
|
| 240 |
case range_skill: |
| 241 |
return !!op->chosen_skill; |
| 242 |
} |
| 243 |
|
| 244 |
/* No match above, must not be valid */ |
| 245 |
return 0; |
| 246 |
} |
| 247 |
|
| 248 |
void |
| 249 |
change_spell (object *op, char k) |
| 250 |
{ |
| 251 |
|
| 252 |
do |
| 253 |
{ |
| 254 |
op->contr->shoottype = (rangetype) (op->contr->shoottype + ((k == '+') ? 1 : -1)); |
| 255 |
if (op->contr->shoottype >= range_size) |
| 256 |
op->contr->shoottype = range_none; |
| 257 |
else if (op->contr->shoottype <= range_bottom) |
| 258 |
op->contr->shoottype = (rangetype) (range_size - 1); |
| 259 |
} |
| 260 |
while (!legal_range (op, op->contr->shoottype)); |
| 261 |
|
| 262 |
/* Legal range has already checked that we have an appropriate item |
| 263 |
* that uses the slot, so we don't need to be too careful about |
| 264 |
* checking the status of the object. |
| 265 |
*/ |
| 266 |
switch (op->contr->shoottype) |
| 267 |
{ |
| 268 |
case range_none: |
| 269 |
new_draw_info (NDI_UNIQUE, 0, op, "No ranged attack chosen."); |
| 270 |
break; |
| 271 |
|
| 272 |
case range_golem: |
| 273 |
new_draw_info (NDI_UNIQUE, 0, op, "You regain control of your golem."); |
| 274 |
break; |
| 275 |
|
| 276 |
case range_bow: |
| 277 |
new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s and %s.", query_name (op->contr->ranges[range_bow]), |
| 278 |
op->contr->ranges[range_bow]->race ? &op->contr->ranges[range_bow]->race : "nothing"); |
| 279 |
break; |
| 280 |
|
| 281 |
case range_magic: |
| 282 |
new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to spells (%s).", &op->contr->ranges[range_magic]->name); |
| 283 |
break; |
| 284 |
|
| 285 |
case range_misc: |
| 286 |
new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to %s.", query_base_name (op->contr->ranges[range_misc], 0)); |
| 287 |
break; |
| 288 |
|
| 289 |
case range_skill: |
| 290 |
new_draw_info_format (NDI_UNIQUE, 0, op, "Switched to skill: %s", op->chosen_skill ? &op->chosen_skill->name : "none"); |
| 291 |
break; |
| 292 |
|
| 293 |
default: |
| 294 |
break; |
| 295 |
} |
| 296 |
} |
| 297 |
|
| 298 |
|
| 299 |
int |
| 300 |
command_rotateshoottype (object *op, char *params) |
| 301 |
{ |
| 302 |
if (!params) |
| 303 |
change_spell (op, '+'); |
| 304 |
else |
| 305 |
change_spell (op, params[0]); |
| 306 |
return 0; |
| 307 |
} |
