]> git.pond.sub.org Git - empserver/blob - src/lib/commands/scra.c
Do not cast to float where usual arithmetic conversions obviously
[empserver] / src / lib / commands / scra.c
1 /*
2  *  Empire - A multi-player, client/server Internet based war game.
3  *  Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
4  *                           Ken Stevens, Steve McClure
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, write to the Free Software
18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  *  ---
21  *
22  *  See files README, COPYING and CREDITS in the root of the source
23  *  tree for related information and legal notices.  It is expected
24  *  that future projects/authors will amend these files as needed.
25  *
26  *  ---
27  *
28  *  scra.c: Scrap ships, planes or land units
29  * 
30  *  Known contributors to this file:
31  *     Steve McClure, 2000
32  */
33
34 #include <config.h>
35
36 #include "misc.h"
37 #include "player.h"
38 #include "xy.h"
39 #include "sect.h"
40 #include "ship.h"
41 #include "plane.h"
42 #include "land.h"
43 #include "nat.h"
44 #include "nsc.h"
45 #include "file.h"
46 #include "commands.h"
47 #include "optlist.h"
48
49 union item_u {
50     struct shpstr ship;
51     struct plnstr plane;
52     struct lndstr land;
53 };
54
55 int
56 scra(void)
57 {
58     struct nstr_item ni;
59     union item_u item;
60     int type;
61     struct sctstr sect;
62     struct mchrstr *mp;
63     struct plchrstr *pp;
64     struct lchrstr *lp;
65     char *p;
66     i_type i;
67     struct nstr_item ni2;
68     struct plnstr plane;
69     struct lndstr land;
70     struct sctstr sect2;
71     char prompt[128];
72     char buf[1024];
73     float eff;
74
75     if (!(p = getstarg(player->argp[1], "Ship, land, or plane? ", buf)))
76         return RET_SYN;
77     switch (*p) {
78     case 's':
79         type = EF_SHIP;
80         break;
81     case 'p':
82         type = EF_PLANE;
83         break;
84     case 'l':
85         type = EF_LAND;
86         break;
87     default:
88         pr("Ships, land units, or planes only! (s, l, p)\n");
89         return RET_SYN;
90     }
91     sprintf(prompt, "%s(s)? ", ef_nameof(type));
92     if ((p = getstarg(player->argp[2], prompt, buf)) == 0)
93         return RET_SYN;
94     if (!snxtitem(&ni, type, p))
95         return RET_SYN;
96     if (p && (isalpha(*p) || (*p == '*') || (*p == '~') || issector(p)
97               || islist(p))) {
98         char y_or_n[80], bbuf[80];
99
100         memset(y_or_n, 0, sizeof(y_or_n));
101         if (type == EF_SHIP) {
102             if (*p == '*')
103                 sprintf(bbuf, "all ships");
104             else if (*p == '~')
105                 sprintf(bbuf, "all unassigned ships");
106             else if (issector(p))
107                 sprintf(bbuf, "all ships in %s", p);
108             else if (isalpha(*p))
109                 sprintf(bbuf, "fleet %c", *p);
110             else
111                 sprintf(bbuf, "ships %s", p);
112         } else if (type == EF_LAND) {
113             if (*p == '*')
114                 sprintf(bbuf, "all land units");
115             else if (*p == '~')
116                 sprintf(bbuf, "all unassigned land units");
117             else if (issector(p))
118                 sprintf(bbuf, "all units in %s", p);
119             else if (isalpha(*p))
120                 sprintf(bbuf, "army %c", *p);
121             else
122                 sprintf(bbuf, "units %s", p);
123         } else {
124             if (*p == '*')
125                 sprintf(bbuf, "all planes");
126             else if (*p == '~')
127                 sprintf(bbuf, "all unassigned planes");
128             else if (issector(p))
129                 sprintf(bbuf, "all planes in %s", p);
130             else if (isalpha(*p))
131                 sprintf(bbuf, "wing %c", *p);
132             else
133                 sprintf(bbuf, "planes %s", p);
134         }
135
136         sprintf(y_or_n, "Really scrap %s [n]? ", bbuf);
137         if (!confirm(y_or_n))
138             return RET_FAIL;
139     }
140     while (nxtitem(&ni, &item)) {
141         if (!player->owner)
142             continue;
143
144         if (opt_MARKET) {
145             if (ontradingblock(type, &item.ship)) {
146                 pr("You cannot scrap an item on the trading block!\n");
147                 continue;
148             }
149         }
150
151         if (type == EF_SHIP) {
152             getsect(item.ship.shp_x, item.ship.shp_y, &sect);
153             if (sect.sct_type != SCT_HARBR)
154                 continue;
155             if (sect.sct_effic < 60 || sect.sct_own != player->cnum)
156                 continue;
157         } else if (type == EF_LAND) {
158             if (item.land.lnd_ship >= 0) {
159                 pr("%s is on a ship, and cannot be scrapped!\n",
160                    prland(&item.land));
161                 continue;
162             }
163             getsect(item.land.lnd_x, item.land.lnd_y, &sect);
164         } else {
165             getsect(item.plane.pln_x, item.plane.pln_y, &sect);
166             if (sect.sct_type != SCT_AIRPT)
167                 continue;
168             if (sect.sct_effic < 60 ||
169                 (sect.sct_own != player->cnum &&
170                  getrel(getnatp(sect.sct_own), player->cnum) < FRIENDLY))
171                 continue;
172         }
173         if (type == EF_SHIP) {
174             eff = item.ship.shp_effic / 100.0;
175             mp = &mchr[(int)item.ship.shp_type];
176             if (opt_TRADESHIPS) {
177                 if (mp->m_flags & M_TRADE) {
178                     pr("WARNING: You only collect money from trade ships if you \"scuttle\" them!\n");
179                     sprintf(prompt,
180                             "Are you really sure that you want to scrap %s (n)? ",
181                             prship(&item.ship));
182                     if (!confirm(prompt)) {
183                         pr("%s not scrapped\n", prship(&item.ship));
184                         continue;
185                     }
186                 }
187             }
188             pr("%s", prship(&item.ship));
189             for (i = I_NONE + 1; i <= I_MAX; i++) {
190                 sect.sct_item[i] += item.ship.shp_item[i];
191             }
192             sect.sct_item[I_LCM] += mp->m_lcm * 2 / 3 * eff;
193             sect.sct_item[I_HCM] += mp->m_hcm * 2 / 3 * eff;
194             getsect(item.ship.shp_x, item.ship.shp_y, &sect2);
195             snxtitem_all(&ni2, EF_PLANE);
196             while (nxtitem(&ni2, &plane)) {
197                 if (plane.pln_own == 0)
198                     continue;
199                 if (plane.pln_ship == item.ship.shp_uid) {
200                     wu(0, plane.pln_own,
201                        "Plane %d transferred off ship %d to %s\n",
202                        ni2.cur, item.ship.shp_uid,
203                        xyas(plane.pln_x, plane.pln_y, player->cnum));
204                     plane.pln_ship = -1;
205                     if (sect2.sct_own != plane.pln_own) {
206                         wu(0, plane.pln_own,
207                            "%s given to %s\n", prplane(&plane),
208                            cname(sect2.sct_own));
209                         wu(0, sect2.sct_own,
210                            "%s given to you by %s\n", prplane(&plane),
211                            cname(player->cnum));
212                     }
213                     makelost(EF_PLANE, plane.pln_own, plane.pln_uid,
214                              plane.pln_x, plane.pln_y);
215                     plane.pln_own = sect2.sct_own;
216                     makenotlost(EF_PLANE, plane.pln_own, plane.pln_uid,
217                                 plane.pln_x, plane.pln_y);
218                     putplane(plane.pln_uid, &plane);
219                 }
220             }
221             snxtitem_all(&ni2, EF_LAND);
222             while (nxtitem(&ni2, &land)) {
223                 if (land.lnd_own == 0)
224                     continue;
225                 if (land.lnd_ship == item.ship.shp_uid) {
226                     wu(0, land.lnd_own,
227                        "Land unit %d transferred off ship %d to %s\n",
228                        ni2.cur, item.ship.shp_uid,
229                        xyas(land.lnd_x, land.lnd_y, player->cnum));
230                     land.lnd_ship = -1;
231                     if (sect2.sct_own != land.lnd_own) {
232                         wu(0, land.lnd_own,
233                            "%s given to %s\n", prland(&land),
234                            cname(sect2.sct_own));
235                         wu(0, sect2.sct_own,
236                            "%s given to you by %s\n", prland(&land),
237                            cname(player->cnum));
238                     }
239                     makelost(EF_LAND, land.lnd_own, land.lnd_uid,
240                              land.lnd_x, land.lnd_y);
241                     land.lnd_own = sect2.sct_own;
242                     makenotlost(EF_LAND, land.lnd_own, land.lnd_uid,
243                                 land.lnd_x, land.lnd_y);
244                     putland(land.lnd_uid, &land);
245                 }
246             }
247             makelost(EF_SHIP, item.ship.shp_own, item.ship.shp_uid,
248                      item.ship.shp_x, item.ship.shp_y);
249             item.ship.shp_own = 0;
250             putship(item.ship.shp_uid, &item.ship);
251         } else if (type == EF_LAND) {
252             eff = item.land.lnd_effic / 100.0;
253             lp = &lchr[(int)item.land.lnd_type];
254             pr("%s", prland(&item.land));
255             for (i = I_NONE + 1; i <= I_MAX; i++) {
256                 sect.sct_item[i] += item.land.lnd_item[i];
257             }
258             sect.sct_item[I_LCM] += lp->l_lcm * 2 / 3 * eff;
259             sect.sct_item[I_HCM] += lp->l_hcm * 2 / 3 * eff;
260             getsect(item.land.lnd_x, item.land.lnd_y, &sect2);
261
262             snxtitem_all(&ni2, EF_LAND);
263             while (nxtitem(&ni2, &land)) {
264                 if (land.lnd_own == 0)
265                     continue;
266                 if (land.lnd_land == item.land.lnd_uid) {
267                     wu(0, land.lnd_own,
268                        "Land unit %d transferred off land unit %d to %s\n",
269                        land.lnd_uid, item.land.lnd_uid,
270                        xyas(land.lnd_x, land.lnd_y, player->cnum));
271                     land.lnd_land = -1;
272                     if (sect2.sct_own != land.lnd_own) {
273                         wu(0, land.lnd_own,
274                            "%s given to %s\n", prland(&land),
275                            cname(sect2.sct_own));
276                         wu(0, sect2.sct_own,
277                            "%s given to you by %s\n", prland(&land),
278                            cname(player->cnum));
279                     }
280                     makelost(EF_LAND, land.lnd_own, land.lnd_uid,
281                              land.lnd_x, land.lnd_y);
282                     land.lnd_own = sect2.sct_own;
283                     makenotlost(EF_LAND, land.lnd_own, land.lnd_uid,
284                                 land.lnd_x, land.lnd_y);
285                     putland(land.lnd_uid, &land);
286                 }
287             }
288
289             snxtitem_all(&ni2, EF_PLANE);
290             while (nxtitem(&ni2, &plane)) {
291                 if (plane.pln_own == 0)
292                     continue;
293                 if (plane.pln_land == item.land.lnd_uid) {
294                     wu(0, plane.pln_own,
295                        "Plane %d transferred off land unit %d to %s\n",
296                        ni2.cur, item.land.lnd_uid,
297                        xyas(plane.pln_x, plane.pln_y, player->cnum));
298                     plane.pln_land = -1;
299                     if (sect2.sct_own != plane.pln_own) {
300                         wu(0, plane.pln_own,
301                            "%s given to %s\n", prplane(&plane),
302                            cname(sect2.sct_own));
303                         wu(0, sect2.sct_own,
304                            "%s given to you by %s\n", prplane(&plane),
305                            cname(player->cnum));
306                     }
307                     makelost(EF_PLANE, plane.pln_own, plane.pln_uid,
308                              plane.pln_x, plane.pln_y);
309                     plane.pln_own = sect2.sct_own;
310                     makenotlost(EF_PLANE, plane.pln_own, plane.pln_uid,
311                                 plane.pln_x, plane.pln_y);
312                     putplane(plane.pln_uid, &plane);
313                 }
314             }
315             makelost(EF_LAND, item.land.lnd_own, item.land.lnd_uid,
316                      item.land.lnd_x, item.land.lnd_y);
317             item.land.lnd_own = 0;
318             putland(item.land.lnd_uid, &item.land);
319         } else {
320             eff = item.land.lnd_effic / 100.0;
321             pp = &plchr[(int)item.plane.pln_type];
322             pr("%s", prplane(&item.plane));
323             sect.sct_item[I_LCM] += pp->pl_lcm * 2 / 3 * eff;
324             sect.sct_item[I_HCM] += pp->pl_hcm * 2 / 3 * eff;
325             sect.sct_item[I_MILIT] += pp->pl_crew;
326             makelost(EF_PLANE, item.plane.pln_own, item.plane.pln_uid,
327                      item.plane.pln_x, item.plane.pln_y);
328             item.plane.pln_own = 0;
329             putplane(item.plane.pln_uid, &item.plane);
330         }
331         pr(" scrapped in %s\n",
332            xyas(sect.sct_x, sect.sct_y, player->cnum));
333         for (i = I_NONE + 1; i <= I_MAX; i++) {
334             if (sect.sct_item[i] > ITEM_MAX)
335                 sect.sct_item[i] = ITEM_MAX;
336         }
337         putsect(&sect);
338     }
339     return RET_OK;
340 }