2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
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.
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.
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
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.
28 * maps.c: Map routines
30 * Known contributors to this file:
33 * Ron Koenderink, 2006
51 #include "prototypes.h"
56 static int bmnxtsct(struct nstr_sect *);
57 static char map_char(int, natid, int);
58 static int unit_map(int, int, struct nstr_sect *, char *);
61 do_map(int bmap, int unit_type, char *arg, char *map_flags_arg)
68 if (!snxtsct(&ns, arg)) {
69 if (unit_map(unit_type, atoi(arg), &ns, &origin))
72 for (b = map_flags_arg; b && *b; b++) {
76 map_flags |= MAP_SHIP;
80 map_flags |= MAP_LAND;
84 map_flags |= MAP_PLANE;
88 map_flags |= MAP_NUKE;
92 map_flags |= MAP_HIGH;
111 pr("Bad flag %c!\n", *b);
115 return draw_map(bmap, origin, map_flags, &ns);
119 draw_map(int bmap, char origin, int map_flags, struct nstr_sect *nsp)
124 union empobj_storage unit;
127 /* Note this is not re-entrant anyway, so we keep the buffers
129 static unsigned char *bitmap = NULL;
130 static char *wmapbuf = NULL;
131 static char **wmap = NULL;
132 static int ef_mappable[] = { EF_PLANE, EF_SHIP, EF_LAND, EF_NUKE, EF_BAD };
133 static int ef_unit_map[] = { MAP_PLANE, MAP_SHIP, MAP_LAND, MAP_NUKE };
137 wmapbuf = malloc(WORLD_Y * MAPWIDTH(1));
139 wmap = malloc(WORLD_Y * sizeof(char *));
140 if (wmap && wmapbuf) {
141 for (i = 0; i < WORLD_Y; i++)
142 wmap[i] = &wmapbuf[MAPWIDTH(1) * i];
149 bitmap = malloc((WORLD_X * WORLD_Y) / 8);
150 if (!wmapbuf || !wmap || !bitmap) {
151 pr("Memory error, tell the deity.\n");
152 logerror("malloc failed in draw_map\n");
157 if (!confirm("Are you sure you want to revert your bmap? "))
160 if (!(player->command->c_flags & C_MOD)) {
161 logerror("%s command needs C_MOD flag set",
162 player->command->c_form);
163 player->command->c_flags |= C_MOD;
165 np = getnatp(player->cnum);
166 /* zap any conditionals */
168 xyrelrange(np, &nsp->range, &range);
169 border(&range, " ", "");
170 blankfill(wmapbuf, &nsp->range, 1);
179 while (bmnxtsct(nsp) && !player->aborted) {
180 if (0 != (c = player->bmap[sctoff(nsp->x, nsp->y)]))
181 wmap[nsp->dy][nsp->dx] = c;
185 while (bmnxtsct(nsp) && !player->aborted) {
186 if (0 != (c = player->map[sctoff(nsp->x, nsp->y)]))
187 wmap[nsp->dy][nsp->dx] = c;
191 while (bmnxtsct(nsp) && !player->aborted) {
192 player->bmap[sctoff(nsp->x, nsp->y)] =
193 player->map[sctoff(nsp->x, nsp->y)];
194 if (0 != (c = player->bmap[sctoff(nsp->x, nsp->y)]))
195 wmap[nsp->dy][nsp->dx] = c;
197 ef_write(EF_BMAP, player->cnum, player->bmap);
204 memset(bitmap, 0, (WORLD_X * WORLD_Y) / 8);
205 bitinit2(nsp, bitmap, player->cnum);
207 while (nxtsct(nsp, §) && !player->aborted) {
208 if (!player->god && !emp_getbit(nsp->x, nsp->y, bitmap))
210 wmap[nsp->dy][nsp->dx]
211 = map_char(sect.sct_newtype, sect.sct_own,
223 memset(bitmap, 0, (WORLD_X * WORLD_Y) / 8);
224 bitinit2(nsp, bitmap, player->cnum);
226 while (nxtsct(nsp, §) && !player->aborted) {
227 if (!player->god && !emp_getbit(nsp->x, nsp->y, bitmap))
229 mapch = map_char(sect.sct_type, sect.sct_own, player->owner);
230 wmap[nsp->dy][nsp->dx] = mapch;
231 changed |= map_set(player->cnum, nsp->x, nsp->y, mapch, 0);
234 writemap(player->cnum);
240 while (ef_mappable[i] != EF_BAD) {
241 if (map_flags & ef_unit_map[i]) {
242 snxtitem_all(&ni, ef_mappable[i]);
243 while (nxtitem(&ni, &unit)) {
244 if (unit.gen.own == 0)
246 if (unit.gen.own != player->cnum && !player->god)
248 if (!xyinrange(unit.gen.x, unit.gen.y, &nsp->range))
251 x = xnorm(unit.gen.x - nsp->range.lx);
252 y = ynorm(unit.gen.y - nsp->range.ly);
254 if (ef_mappable[i] == EF_NUKE)
257 if ((name = emp_obj_chr_name(&unit.gen)) == NULL)
259 wmap[y][x] = *name & ~0x20;
265 if (map_flags & MAP_HIGH) {
270 memset(bitmap, 0, (WORLD_X * WORLD_Y) / 8);
271 bitinit2(nsp, bitmap, player->cnum);
273 while (nxtsct(nsp, §) && !player->aborted) {
274 if (!player->god && !emp_getbit(nsp->x, nsp->y, bitmap))
276 if (sect.sct_own == player->cnum)
277 wmap[nsp->dy][nsp->dx] |= 0x80;
281 wmap[5][10] = origin & ~0x20;
282 for (y = nsp->range.ly, i = 0; i < nsp->range.height; y++, i++) {
286 wmap[i][nsp->range.width] = '\0';
287 pr("%4d %s %-4d\n", yval, wmap[i], yval);
291 border(&range, " ", "");
296 * get the next sector in the range
299 bmnxtsct(struct nstr_sect *np)
304 if (np->x >= WORLD_X)
306 if (np->dx >= np->range.width) {
308 np->x = np->range.lx;
310 if (np->dy >= np->range.height)
313 if (np->y >= WORLD_Y)
316 if ((np->y + np->x) & 01)
318 if (np->type == NS_DIST) {
319 np->curdist = mapdist(np->x, np->y, np->cx, np->cy);
320 if (np->curdist > np->dist)
323 np->id = sctoff(np->x, np->y);
330 * Return character to use in maps for sector type TYPE owned by OWN.
331 * If OWNER_OR_GOD, the map is for the sector's owner or a deity.
334 map_char(int type, natid own, int owner_or_god)
336 if (CANT_HAPPEN(type > SCT_TYPE_MAX || !dchr[type].d_mnem))
339 || type == SCT_WATER || type == SCT_MOUNT || type == SCT_WASTE
340 || (!own && (type == SCT_RURAL || type == SCT_PLAINS)))
341 return dchr[type].d_mnem;
346 unit_map(int unit_type, int uid, struct nstr_sect *nsp, char *originp)
352 gp = get_empobjp(unit_type, uid);
353 if (!gp || (gp->own != player->cnum && !player->god) || gp->own == 0)
356 if (unit_type == EF_NUKE)
359 if ((name = emp_obj_chr_name(gp)) == NULL)
364 range.lx = xnorm(gp->x - 10);
365 range.hx = xnorm(gp->x + 11);
366 range.ly = ynorm(gp->y - 5);
367 range.hy = ynorm(gp->y + 6);
368 xysize_range(&range);
369 snxtsct_area(nsp, &range);
374 display_region_map(int bmap, int unit_type, coord curx, coord cury,
377 char coordinates[80];
383 np = getnatp(player->cnum);
384 sprintf(coordinates, "%d:%d,%d:%d",
385 xrel(np, curx - 10), xrel(np, curx + 11),
386 yrel(np, cury - 5), yrel(np, cury + 6));
390 map_flag_arg = strchr(arg, ' ');
391 if (map_flag_arg != NULL) {
392 *map_flag_arg++ = '\0';
393 while (isspace(*map_flag_arg)) map_flag_arg++;
396 player->condarg = NULL;
397 return do_map(bmap, unit_type, arg, map_flag_arg);
401 bmaps_intersect(natid a, natid b)
403 char *mapa = ef_ptr(EF_MAP, a);
404 char *mapb = ef_ptr(EF_MAP, b);
407 for (i = 0; i < WORLD_SZ(); i++)
408 if (mapa[i] && mapa[i] != ' ' && mapb[i] && mapb[i] != ' ')
413 /* Note that this requires that the BMAP is mapped into memory */
416 share_bmap(natid from, natid to, struct nstr_sect *ns, char des,
419 char *from_bmap = ef_ptr(EF_BMAP, from);
420 char *to_bmap = ef_ptr(EF_BMAP, to);
425 char from_des = *from_name;
427 if (isalpha(from_des))
430 while (nxtsct(ns, §)) {
431 if (!(fromdes = from_bmap[sctoff(ns->x, ns->y)]))
433 todes = to_bmap[sctoff(ns->x, ns->y)];
436 todes != '.' && todes != ' ' && todes != from_des)
438 if (sect.sct_own == from) {
439 if (fromdes != '=' && fromdes != 'h' && fromdes != des)
442 if (todes == fromdes)
444 n += map_set(to, ns->x, ns->y, fromdes, 1);