/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2015, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire 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
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
* ---
*
* unitsub.c: Common subroutines for multiple type of units
- *
+ *
* Known contributors to this file:
* Ron Koenderink, 2007
- * Markus Armbruster, 2008
+ * Markus Armbruster, 2009-2015
*/
#include <config.h>
-#include "empobj.h"
+#include <math.h>
#include "file.h"
+#include "map.h"
+#include "optlist.h"
+#include "path.h"
#include "player.h"
#include "prototypes.h"
#include "unit.h"
-void
+char *
+unit_nameof(struct empobj *gp)
+{
+ switch (gp->ef_type) {
+ case EF_SHIP:
+ return prship((struct shpstr *)gp);
+ case EF_PLANE:
+ return prplane((struct plnstr *)gp);
+ case EF_LAND:
+ return prland((struct lndstr *)gp);
+ case EF_NUKE:
+ return prnuke((struct nukstr *)gp);
+ }
+ CANT_REACH();
+ return "The Beast #666";
+}
+
+static void
unit_list(struct emp_qelem *unit_list)
{
struct emp_qelem *qp;
return;
qp = unit_list->q_back;
ulp = (struct ulist *)qp;
- type = ulp->unit.ef_type;
+ type = ulp->unit.gen.ef_type;
if (CANT_HAPPEN(type != EF_LAND && type != EF_SHIP))
return;
if (type == EF_LAND)
- pr("lnd# land type x,y a eff sh gun xl mu tech retr\n");
+ pr("lnd# land type x,y a eff mil sh gun xl ln mu tech retr\n");
else
- pr("shp# ship type x,y fl eff mil sh gun pn he xl ln mob tech\n");
+ pr("shp# ship type x,y fl eff mil sh gun pn he xl ln mob tech\n");
for (; qp != unit_list; qp = next) {
next = qp->q_back;
continue;
pr("%4d ", unit->uid);
pr("%-16.16s ", empobj_chr_name(unit));
- prxy("%4d,%-4d ", unit->x, unit->y, unit->own);
+ prxy("%4d,%-4d ", unit->x, unit->y);
pr("%1.1s", &unit->group);
pr("%4d%%", unit->effic);
if (type == EF_LAND) {
+ pr("%4d", lnd->lnd_item[I_MILIT]);
pr("%4d", lnd->lnd_item[I_SHELL]);
pr("%4d", lnd->lnd_item[I_GUN]);
- pr("%3d", lnd_nxlight(lnd));
+ pr("%3d%3d", lnd_nxlight(lnd), lnd_nland(lnd));
} else {
pr("%4d", shp->shp_item[I_MILIT]);
pr("%4d", shp->shp_item[I_SHELL]);
}
}
-void
-unit_put(struct emp_qelem *list, natid actor)
+static void
+unit_view(struct emp_qelem *list)
{
+ struct sctstr sect;
struct emp_qelem *qp;
- struct emp_qelem *newqp;
+ struct emp_qelem *next;
struct ulist *ulp;
- struct empobj *unit;
- qp = list->q_back;
- while (qp != list) {
+ for (qp = list->q_back; qp != list; qp = next) {
+ next = qp->q_back;
ulp = (struct ulist *)qp;
- unit = &ulp->unit.gen;
- if (CANT_HAPPEN(unit->ef_type != EF_LAND
- && unit->ef_type != EF_SHIP))
+ if (CANT_HAPPEN(!(ef_flags(ulp->unit.gen.ef_type) & EFF_XY)))
continue;
- if (actor) {
- mpr(actor, "%s stopped at %s\n", obj_nameof(unit),
- xyas(unit->x, unit->y, unit->own));
- if (unit->ef_type == EF_LAND) {
- if (ulp->mobil < -127)
- ulp->mobil = -127;
- unit->mobil = ulp->mobil;
- }
+ getsect(ulp->unit.gen.x, ulp->unit.gen.y, §);
+ if (ulp->unit.gen.ef_type == EF_SHIP) {
+ if (mchr[ulp->unit.ship.shp_type].m_flags & M_FOOD)
+ pr("[fert:%d] ", sect.sct_fertil);
+ if (mchr[ulp->unit.ship.shp_type].m_flags & M_OIL)
+ pr("[oil:%d] ", sect.sct_oil);
}
- if (unit->ef_type == EF_SHIP)
- unit->mobil = (int)ulp->mobil;
- put_empobj(unit->ef_type, unit->uid, unit);
- newqp = qp->q_back;
+ pr("%s @ %s %d%% %s\n", unit_nameof(&ulp->unit.gen),
+ xyas(ulp->unit.gen.x, ulp->unit.gen.y, player->cnum),
+ sect.sct_effic, dchr[sect.sct_type].d_name);
+ }
+}
+
+void
+unit_rad_map_set(struct emp_qelem *list)
+{
+ struct emp_qelem *qp;
+ struct empobj *unit;
+
+ for (qp = list->q_back; qp != list; qp = qp->q_back) {
+ unit = &((struct ulist *)qp)->unit.gen;
+ rad_map_set(unit->own, unit->x, unit->y, unit->effic, unit->tech,
+ unit->ef_type == EF_SHIP
+ ? mchr[unit->type].m_vrnge : lchr[unit->type].l_spy);
+ }
+}
+
+static struct empobj *
+get_leader(struct emp_qelem *list)
+{
+ return &((struct ulist *)(list->q_back))->unit.gen;
+}
+
+static void
+switch_leader(struct emp_qelem *list, char *arg)
+{
+ int uid = arg ? atoi(arg) : -1;
+
+ struct emp_qelem *qp, *save;
+ struct ulist *ulp;
+
+ if (QEMPTY(list))
+ return;
+
+ save = qp = list->q_back;
+ do {
emp_remque(qp);
- free(qp);
- qp = newqp;
+ emp_insque(qp, list);
+ qp = list->q_back;
+ ulp = (struct ulist *)qp;
+ if (ulp->unit.gen.uid == uid || uid == -1)
+ break;
+ } while (list->q_back != save);
+}
+
+static char *
+unit_move_parse(char *cp, char *arg1_default)
+{
+ int ac;
+
+ ac = parse(cp, player->argbuf, player->argp, NULL, NULL, NULL);
+ if (CANT_HAPPEN(ac <= 0)) {
+ player->argp[0] = "";
+ return "";
+ }
+ if (ac == 1) {
+ player->argp[1] = arg1_default;
+ return cp + 1;
}
+ return "";
}
-char *
-unit_path(int together, struct empobj *unit, char *buf)
+static char *
+unit_move_non_dir(struct emp_qelem *list, char *cp, int *map_shown)
+{
+ struct empobj *leader = get_leader(list);
+ int bmap = 0, stopping;
+ char leader_str[32];
+
+ *map_shown = 0;
+ sprintf(leader_str, "%d", leader->uid);
+
+ switch (*cp) {
+ case 'B':
+ bmap = 'b';
+ /* fall through */
+ case 'M':
+ cp = unit_move_parse(cp, leader_str);
+ display_region_map(bmap, leader->ef_type, leader->x, leader->y,
+ player->argp[1], player->argp[2]);
+ *map_shown = 1;
+ break;
+ case 'f':
+ cp = unit_move_parse(cp, NULL);
+ switch_leader(list, player->argp[1]);
+ break;
+ case 'i':
+ cp++;
+ unit_list(list);
+ break;
+ case 'm':
+ cp++;
+ if (leader->ef_type == EF_SHIP)
+ stopping = shp_sweep(list, 1, 1, player->cnum);
+ else
+ stopping = lnd_sweep(list, 1, 1, player->cnum);
+ if (stopping)
+ cp = "";
+ break;
+ case 'r':
+ cp = unit_move_parse(cp, leader_str);
+ radar(leader->ef_type);
+ player->btused++; /* FIXME use player_coms[].c_cost */
+ *map_shown = 1;
+ break;
+ case 'l':
+ cp = unit_move_parse(cp, leader_str);
+ do_look(leader->ef_type);
+ player->btused++; /* FIXME likewise */
+ break;
+ case 's':
+ if (leader->ef_type != EF_SHIP)
+ return NULL;
+ cp = unit_move_parse(cp, leader_str);
+ sona();
+ player->btused++; /* FIXME likewise */
+ *map_shown = 1;
+ break;
+ case 'd':
+ cp = unit_move_parse(cp, NULL);
+ if (!player->argp[1]) {
+ player->argp[1] = leader_str;
+ player->argp[2] = "1";
+ } else if (!player->argp[2]) {
+ player->argp[2] = player->argp[1];
+ player->argp[1] = leader_str;
+ }
+ if (leader->ef_type == EF_SHIP)
+ mine();
+ else
+ landmine();
+ player->btused++; /* FIXME likewise */
+ *map_shown = 1;
+ break;
+ case 'v':
+ cp++;
+ unit_view(list);
+ break;
+ default:
+ return NULL;
+ }
+
+ return cp;
+}
+
+static char *
+unit_move_getpath(struct emp_qelem *list, int suppress_map, char *path)
+{
+ struct empobj *leader = get_leader(list);
+ double minmob, maxmob;
+ struct emp_qelem *qp;
+ struct ulist *ulp;
+ char prompt[64];
+
+ minmob = HUGE_VAL;
+ maxmob = -HUGE_VAL;
+ for (qp = list->q_back; qp != list; qp = qp->q_back) {
+ ulp = (struct ulist *)qp;
+ if (ulp->mobil < minmob)
+ minmob = ulp->mobil;
+ if (ulp->mobil > maxmob)
+ maxmob = ulp->mobil;
+ }
+ if (!suppress_map)
+ nav_map(leader->x, leader->y,
+ leader->ef_type == EF_SHIP
+ ? !(mchr[leader->type].m_flags & M_SUB) : 1);
+ snprintf(prompt, sizeof(prompt), "<%.1f:%.1f: %s> ",
+ maxmob, minmob,
+ xyas(leader->x, leader->y, player->cnum));
+ return getstring(prompt, path);
+}
+
+static char *
+unit_move_route(struct empobj *unit, char *buf, size_t bufsz)
{
coord destx;
coord desty;
- struct sctstr d_sect, sect;
- char *cp;
- double dummy;
+ struct sctstr sect;
+ size_t len;
+ double c;
int mtype;
if (CANT_HAPPEN(unit->ef_type != EF_LAND && unit->ef_type != EF_SHIP))
return NULL;
if (!sarg_xy(buf, &destx, &desty))
- return 0;
- if (!together) {
- pr("Cannot go to a destination sector if not all starting in the same sector\n");
- return 0;
- }
- if (!getsect(destx, desty, &d_sect)) {
- pr("%d,%d is not a sector\n", destx, desty);
- return 0;
- }
+ return buf;
if (unit->ef_type == EF_SHIP) {
- cp = BestShipPath(buf, unit->x, unit->y,
- d_sect.sct_x, d_sect.sct_y, player->cnum);
- if (!cp || unit->mobil <= 0) {
+ c = path_find(unit->x, unit->y, destx, desty,
+ player->cnum, MOB_SAIL);
+ if (c < 0 || unit->mobil <= 0) {
pr("Can't get to '%s' right now.\n",
- xyas(d_sect.sct_x, d_sect.sct_y, player->cnum));
- return 0;
+ xyas(destx, desty, player->cnum));
+ return NULL;
}
} else {
getsect(unit->x, unit->y, §);
mtype = lnd_mobtype((struct lndstr *)unit);
- cp = BestLandPath(buf, §, &d_sect, &dummy, mtype);
- if (!cp) {
+ /*
+ * Note: passing sect.sct_own for actor is funny, but works:
+ * its only effect is to confine the search to that nation's
+ * land. It doesn't affect mobility costs. The real actor is
+ * different for marching in allied land, and passing it would
+ * break path finding there.
+ */
+ c = path_find(unit->x, unit->y, destx, desty, sect.sct_own, mtype);
+ if (c < 0) {
pr("No owned %s from %s to %s!\n",
mtype == MOB_RAIL ? "railway" : "path",
xyas(unit->x, unit->y, player->cnum),
- xyas(d_sect.sct_x, d_sect.sct_y, player->cnum));
- return 0;
+ xyas(destx, desty, player->cnum));
+ return NULL;
}
- pr("Using path '%s'\n", cp);
}
- return cp;
+ len = path_find_route(buf, bufsz, unit->x, unit->y, destx, desty);
+ if (len == 0 || unit->ef_type == EF_LAND) {
+ if (len + 1 < bufsz)
+ strcpy(buf + len, "h");
+ len++;
+ }
+ if (len >= bufsz) {
+ pr("Can't handle path to %s, it's too long, sorry\n",
+ xyas(destx, desty, player->cnum));
+ return NULL;
+ }
+ pr("Using path '%s'\n", buf);
+ return buf;
}
-void
-unit_view(struct emp_qelem *list)
+int
+unit_move(struct emp_qelem *list)
{
- struct sctstr sect;
- struct emp_qelem *qp;
- struct emp_qelem *next;
- struct ulist *ulp;
+ struct empobj *leader = get_leader(list);
+ int leader_uid = leader->uid;
+ int type = leader->ef_type;
+ int moved, suppress_map, dir, stopping;
+ char *cp;
+ char path[1024];
- for (qp = list->q_back; qp != list; qp = next) {
- next = qp->q_back;
- ulp = (struct ulist *)qp;
- if (CANT_HAPPEN(!(ef_flags(ulp->unit.ef_type) & EFF_XY)))
- continue;
- getsect(ulp->unit.gen.x, ulp->unit.gen.y, §);
- if (ulp->unit.ef_type == EF_SHIP) {
- if (((struct mchrstr *)ulp->chrp)->m_flags & M_FOOD)
- pr("[fert:%d] ", sect.sct_fertil);
- if (((struct mchrstr *)ulp->chrp)->m_flags & M_OIL)
- pr("[oil:%d] ", sect.sct_oil);
+ unit_rad_map_set(list);
+
+ pr("%s is %s\n",
+ type == EF_SHIP ? "Flagship" : "Leader",
+ unit_nameof(leader));
+
+ cp = "";
+ if (player->argp[2]) {
+ strcpy(path, player->argp[2]);
+ cp = unit_move_route(leader, path, sizeof(path));
+ if (!cp)
+ cp = "";
+ }
+
+ moved = suppress_map = 0;
+ for (;;) {
+ /*
+ * Invariants:
+ * - shp_may_nav() true for all ships
+ * - lnd_may_mar() true for all land units
+ * - leader is up-to-date
+ * Implies all are in the same sector
+ */
+ if (!*cp) {
+ cp = unit_move_getpath(list, suppress_map, path);
+ if (!cp)
+ return RET_FAIL;
+ cp = unit_move_route(leader, path, sizeof(path));
+ if (!cp || !*cp)
+ cp = "h";
+ suppress_map = 0;
+ } else if ((dir = chkdir(*cp, DIR_STOP, DIR_LAST)) >= 0) {
+ cp++;
+ if (type == EF_SHIP)
+ stopping = shp_nav_dir(list, dir, player->cnum)
+ || shp_nav_gauntlet(list, 1, player->cnum);
+ else {
+ if (!moved && !lnd_abandon_askyn(list))
+ return RET_FAIL;
+ stopping = lnd_mar_dir(list, dir, player->cnum)
+ || lnd_mar_gauntlet(list, 1, player->cnum);
+ }
+ if (dir == DIR_STOP)
+ return RET_OK;
+ moved = 1;
+ if (stopping)
+ cp = "";
+ } else {
+ cp = unit_move_non_dir(list, cp, &suppress_map);
+ if (!cp) {
+ direrr("`%c' to stop", ", `%c' to view", NULL);
+ pr(", `i' to list %s, `f' to change %s,\n",
+ type == EF_SHIP ? "ships" : "units",
+ type == EF_SHIP ? "flagship" : "leader");
+ pr("`r' to radar, %s`l' to look, `M' to map, `B' to bmap,\n",
+ type == EF_SHIP ? "`s' to sonar, " : "");
+ pr("`d' to drop mines, and `m' to minesweep\n");
+ cp = "";
+ }
+ }
+
+ if (type == EF_SHIP)
+ shp_nav_stay_behind(list, player->cnum);
+ else
+ lnd_mar_stay_behind(list, player->cnum);
+
+ if (QEMPTY(list)) {
+ pr("No %s left\n", type == EF_SHIP ? "ships" : "lands");
+ return RET_OK;
}
- pr("%s @ %s %d%% %s\n", obj_nameof(&ulp->unit.gen),
- xyas(ulp->unit.gen.x, ulp->unit.gen.y, player->cnum),
- sect.sct_effic, dchr[sect.sct_type].d_name);
+
+ leader = get_leader(list);
+ if (leader->uid != leader_uid) {
+ leader_uid = leader->uid;
+ pr("Changing %s to %s\n",
+ leader->ef_type == EF_SHIP ? "flagship" : "leader",
+ unit_nameof(leader));
+ }
+ unit_rad_map_set(list);
}
}
+/*
+ * Teleport UNIT to X,Y.
+ * If UNIT's mission op-area is centered on it, keep it centered.
+ */
+void
+unit_teleport(struct empobj *unit, coord x, coord y)
+{
+ if (unit->opx == unit->x && unit->opy == unit->y) {
+ unit->opx = x;
+ unit->opy = y;
+ }
+ unit->x = x;
+ unit->y = y;
+}
+
/*
* Update cargo of CARRIER for movement or destruction.
* If the carrier is destroyed, destroy its cargo (planes, land units,
* nukes).
* Else update their location to the carrier's. Any op sectors equal
* to location get updated, too.
+ * Return number of units updated.
*/
-void
+int
unit_update_cargo(struct empobj *carrier)
{
int cargo_type;
struct nstr_item ni;
union empobj_storage obj;
+ int n = 0;
for (cargo_type = EF_PLANE; cargo_type <= EF_NUKE; cargo_type++) {
snxtitem_cargo(&ni, cargo_type, carrier->ef_type, carrier->uid);
while (nxtitem(&ni, &obj)) {
- if (!carrier->own) {
- mpr(obj.gen.own, "%s lost!\n", obj_nameof(&obj.gen));
+ if (carrier->own)
+ unit_teleport(&obj.gen, carrier->x, carrier->y);
+ else {
+ mpr(obj.gen.own, "%s lost!\n", unit_nameof(&obj.gen));
obj.gen.effic = 0;
- } else {
- /* mission op-area centered on the obj travels with it */
- if (obj.gen.opx == obj.gen.x && obj.gen.opy == obj.gen.y) {
- obj.gen.opx = carrier->x;
- obj.gen.opy = carrier->y;
- }
- obj.gen.x = carrier->x;
- obj.gen.y = carrier->y;
}
put_empobj(cargo_type, obj.gen.uid, &obj);
+ n++;
}
}
+ return n;
}
/*
break;
}
mpr(cargo.gen.own, "%s transferred off %s %d to %s\n",
- obj_nameof(&cargo.gen),
+ unit_nameof(&cargo.gen),
ef_nameof(unit->ef_type), unit->uid,
xyas(cargo.gen.x, cargo.gen.y, cargo.gen.own));
if (newown)
if (giver) {
mpr(unit->own, "%s given to %s\n",
- obj_nameof(unit), cname(recipient));
+ unit_nameof(unit), cname(recipient));
mpr(recipient, "%s given to you by %s\n",
- obj_nameof(unit), cname(giver));
+ unit_nameof(unit), cname(giver));
}
unit->own = recipient;
- unit->mission = 0;
- unit->group = 0;
+ unit_wipe_orders(unit);
+ put_empobj(unit->ef_type, unit->uid, unit);
for (type = EF_PLANE; type <= EF_NUKE; type++) {
snxtitem_cargo(&ni, type, unit->ef_type, unit->uid);
- while (nxtitem(&ni, &cargo)) {
+ while (nxtitem(&ni, &cargo))
unit_give_away(&cargo.gen, recipient, giver);
- put_empobj(type, cargo.gen.uid, &cargo.gen);
- }
+ }
+}
+
+/*
+ * Wipe orders and such from UNIT.
+ */
+void
+unit_wipe_orders(struct empobj *unit)
+{
+ struct shpstr *sp;
+ struct plnstr *pp;
+ struct lndstr *lp;
+
+ unit->group = 0;
+ unit->opx = unit->opy = 0;
+ unit->mission = 0;
+ unit->radius = 0;
+
+ switch (unit->ef_type) {
+ case EF_SHIP:
+ sp = (struct shpstr *)unit;
+ sp->shp_rflags = 0;
+ sp->shp_rpath[0] = 0;
+ break;
+ case EF_PLANE:
+ pp = (struct plnstr *)unit;
+ pp->pln_range = pln_range_max(pp);
+ break;
+ case EF_LAND:
+ lp = (struct lndstr *)unit;
+ lp->lnd_retreat = morale_base;
+ lp->lnd_rflags = 0;
+ lp->lnd_rpath[0] = 0;
+ break;
+ case EF_NUKE:
+ break;
+ default:
+ CANT_REACH();
}
}
projects / empserver / blobdiff