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(unsigned char type, natid own, int owner_or_god);
60 do_map(int bmap, int unit_type, char *arg, char *map_flags_arg)
67 if (!snxtsct(&ns, arg)) {
68 if (unit_map(unit_type, atoi(arg), &ns, &origin))
71 for (b = map_flags_arg; b && *b; b++) {
75 map_flags |= MAP_SHIP;
79 map_flags |= MAP_LAND;
83 map_flags |= MAP_PLANE;
87 map_flags |= MAP_NUKE;
91 map_flags |= MAP_HIGH;
110 pr("Bad flag %c!\n", *b);
114 return draw_map(bmap, origin, map_flags, &ns);
118 draw_map(int bmap, char origin, int map_flags, struct nstr_sect *nsp)
123 union empobj_storage unit;
126 /* Note this is not re-entrant anyway, so we keep the buffers
128 static unsigned char *bitmap = NULL;
129 static char *wmapbuf = NULL;
130 static char **wmap = NULL;
131 static int ef_mappable[] = { EF_PLANE, EF_SHIP, EF_LAND, EF_NUKE, EF_BAD };
132 static int ef_unit_map[] = { MAP_PLANE, MAP_SHIP, MAP_LAND, MAP_NUKE };
136 wmapbuf = malloc(WORLD_Y * MAPWIDTH(1));
138 wmap = malloc(WORLD_Y * sizeof(char *));
139 if (wmap && wmapbuf) {
140 for (i = 0; i < WORLD_Y; i++)
141 wmap[i] = &wmapbuf[MAPWIDTH(1) * i];
148 bitmap = malloc((WORLD_X * WORLD_Y) / 8);
149 if (!wmapbuf || !wmap || !bitmap) {
150 pr("Memory error, tell the deity.\n");
151 logerror("malloc failed in draw_map\n");
156 if (!confirm("Are you sure you want to revert your bmap? "))
159 if (!(player->command->c_flags & C_MOD)) {
160 logerror("%s command needs C_MOD flag set",
161 player->command->c_form);
162 player->command->c_flags |= C_MOD;
164 np = getnatp(player->cnum);
165 /* zap any conditionals */
167 xyrelrange(np, &nsp->range, &range);
168 border(&range, " ", "");
169 blankfill(wmapbuf, &nsp->range, 1);
178 while (bmnxtsct(nsp) && !player->aborted) {
179 if (0 != (c = player->bmap[sctoff(nsp->x, nsp->y)]))
180 wmap[nsp->dy][nsp->dx] = c;
184 while (bmnxtsct(nsp) && !player->aborted) {
185 if (0 != (c = player->map[sctoff(nsp->x, nsp->y)]))
186 wmap[nsp->dy][nsp->dx] = c;
190 while (bmnxtsct(nsp) && !player->aborted) {
191 player->bmap[sctoff(nsp->x, nsp->y)] =
192 player->map[sctoff(nsp->x, nsp->y)];
193 if (0 != (c = player->bmap[sctoff(nsp->x, nsp->y)]))
194 wmap[nsp->dy][nsp->dx] = c;
196 ef_write(EF_BMAP, player->cnum, player->bmap);
203 memset(bitmap, 0, (WORLD_X * WORLD_Y) / 8);
204 bitinit2(nsp, bitmap, player->cnum);
206 while (nxtsct(nsp, §) && !player->aborted) {
207 if (!player->god && !emp_getbit(nsp->x, nsp->y, bitmap))
209 wmap[nsp->dy][nsp->dx]
210 = map_char(sect.sct_newtype, sect.sct_own,
222 memset(bitmap, 0, (WORLD_X * WORLD_Y) / 8);
223 bitinit2(nsp, bitmap, player->cnum);
225 while (nxtsct(nsp, §) && !player->aborted) {
226 if (!player->god && !emp_getbit(nsp->x, nsp->y, bitmap))
228 mapch = map_char(sect.sct_type, sect.sct_own, player->owner);
229 wmap[nsp->dy][nsp->dx] = mapch;
230 changed |= map_set(player->cnum, nsp->x, nsp->y, mapch, 0);
233 writemap(player->cnum);
239 while (ef_mappable[i] != EF_BAD) {
240 if (map_flags & ef_unit_map[i]) {
241 snxtitem_all(&ni, ef_mappable[i]);
242 while (nxtitem(&ni, &unit)) {
243 if (unit.gen.own == 0)
245 if (unit.gen.own != player->cnum && !player->god)
247 if (!xyinrange(unit.gen.x, unit.gen.y, &nsp->range))
250 x = xnorm(unit.gen.x - nsp->range.lx);
251 y = ynorm(unit.gen.y - nsp->range.ly);
253 if (ef_mappable[i] == EF_NUKE)
256 if ((name = emp_obj_chr_name(&unit.gen)) == NULL)
258 wmap[y][x] = *name & ~0x20;
264 if (map_flags & MAP_HIGH) {
269 memset(bitmap, 0, (WORLD_X * WORLD_Y) / 8);
270 bitinit2(nsp, bitmap, player->cnum);
272 while (nxtsct(nsp, §) && !player->aborted) {
273 if (!player->god && !emp_getbit(nsp->x, nsp->y, bitmap))
275 if (sect.sct_own == player->cnum)
276 wmap[nsp->dy][nsp->dx] |= 0x80;
280 wmap[5][10] = origin & ~0x20;
281 for (y = nsp->range.ly, i = 0; i < nsp->range.height; y++, i++) {
285 wmap[i][nsp->range.width] = '\0';
286 pr("%4d %s %-4d\n", yval, wmap[i], yval);
290 border(&range, " ", "");
295 * get the next sector in the range
298 bmnxtsct(struct nstr_sect *np)
303 if (np->x >= WORLD_X)
305 if (np->dx >= np->range.width) {
307 np->x = np->range.lx;
309 if (np->dy >= np->range.height)
312 if (np->y >= WORLD_Y)
315 if ((np->y + np->x) & 01)
317 if (np->type == NS_DIST) {
318 np->curdist = mapdist(np->x, np->y, np->cx, np->cy);
319 if (np->curdist > np->dist)
322 np->id = sctoff(np->x, np->y);
329 * Return character to use in maps for sector type TYPE owned by OWN.
330 * If OWNER_OR_GOD, the map is for the sector's owner or a deity.
333 map_char(unsigned char type, natid own, int owner_or_god)
335 if (CANT_HAPPEN(type > SCT_TYPE_MAX || !dchr[type].d_mnem))
338 || type == SCT_WATER || type == SCT_MOUNT || type == SCT_WASTE
339 || (!own && (type == SCT_RURAL || type == SCT_PLAINS)))
340 return dchr[type].d_mnem;
345 unit_map(int unit_type, int uid, struct nstr_sect *nsp, char *originp)
351 gp = get_empobjp(unit_type, uid);
352 if (!gp || (gp->own != player->cnum && !player->god) || gp->own == 0)
355 if (unit_type == EF_NUKE)
358 if ((name = emp_obj_chr_name(gp)) == NULL)
363 range.lx = xnorm(gp->x - 10);
364 range.hx = xnorm(gp->x + 11);
365 range.ly = ynorm(gp->y - 5);
366 range.hy = ynorm(gp->y + 6);
367 xysize_range(&range);
368 snxtsct_area(nsp, &range);
373 display_region_map(int bmap, int unit_type, coord curx, coord cury,
376 char coordinates[80];
382 np = getnatp(player->cnum);
383 sprintf(coordinates, "%d:%d,%d:%d",
384 xrel(np, curx - 10), xrel(np, curx + 11),
385 yrel(np, cury - 5), yrel(np, cury + 6));
389 map_flag_arg = strchr(arg, ' ');
390 if (map_flag_arg != NULL) {
391 *map_flag_arg++ = '\0';
392 while (isspace(*map_flag_arg)) map_flag_arg++;
395 player->condarg = NULL;
396 return do_map(bmap, unit_type, arg, map_flag_arg);
400 bmaps_intersect(natid a, natid b)
402 char *mapa = ef_ptr(EF_MAP, a);
403 char *mapb = ef_ptr(EF_MAP, b);
406 for (i = 0; i < WORLD_SZ(); i++)
407 if (mapa[i] && mapa[i] != ' ' && mapb[i] && mapb[i] != ' ')
412 /* Note that this requires that the BMAP is mapped into memory */
415 share_bmap(natid from, natid to, struct nstr_sect *ns, char des,
418 char *from_bmap = ef_ptr(EF_BMAP, from);
419 char *to_bmap = ef_ptr(EF_BMAP, to);
424 char from_des = *from_name;
426 if (isalpha(from_des))
429 while (nxtsct(ns, §)) {
430 if (!(fromdes = from_bmap[sctoff(ns->x, ns->y)]))
432 todes = to_bmap[sctoff(ns->x, ns->y)];
435 todes != '.' && todes != ' ' && todes != from_des)
437 if (sect.sct_own == from) {
438 if (fromdes != '=' && fromdes != 'h' && fromdes != des)
441 if (todes == fromdes)
443 n += map_set(to, ns->x, ns->y, fromdes, 1);