/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2011, 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, 2009-2011
*/
#include <config.h>
-#include "empobj.h"
#include "file.h"
+#include "path.h"
#include "player.h"
+#include "optlist.h"
#include "prototypes.h"
#include "unit.h"
+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";
+}
+
void
unit_list(struct emp_qelem *unit_list)
{
struct emp_qelem *qp;
struct emp_qelem *next;
struct ulist *ulp;
+ int type, npln, nch, nxl;
struct empobj *unit;
struct lndstr *lnd;
struct shpstr *shp;
- CANT_HAPPEN(QEMPTY(unit_list));
-
+ if (CANT_HAPPEN(QEMPTY(unit_list)))
+ return;
qp = unit_list->q_back;
ulp = (struct ulist *)qp;
+ type = ulp->unit.gen.ef_type;
+ if (CANT_HAPPEN(type != EF_LAND && type != EF_SHIP))
+ return;
- if (ulp->unit.ef_type == EF_LAND)
- pr("lnd# land type x,y a eff sh gun xl mu tech retr fuel\n");
+ if (type == EF_LAND)
+ 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;
lnd = &ulp->unit.land;
shp = &ulp->unit.ship;
unit = &ulp->unit.gen;
+ if (CANT_HAPPEN(type != unit->ef_type))
+ continue;
pr("%4d ", unit->uid);
- pr("%-16.16s ", emp_obj_chr_name(unit));
- prxy("%4d,%-4d ", unit->x, unit->y, unit->own);
+ pr("%-16.16s ", empobj_chr_name(unit));
+ prxy("%4d,%-4d ", unit->x, unit->y);
pr("%1.1s", &unit->group);
pr("%4d%%", unit->effic);
- if (unit->ef_type == EF_LAND) {
+ 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]);
- count_land_planes(lnd);
- pr("%3d", lnd->lnd_nxlight);
+ pr("%3d%3d", lnd_nxlight(lnd), lnd_nland(lnd));
} else {
pr("%4d", shp->shp_item[I_MILIT]);
pr("%4d", shp->shp_item[I_SHELL]);
pr("%4d", shp->shp_item[I_GUN]);
- count_planes(shp);
- pr("%3d", shp->shp_nplane);
- pr("%3d", shp->shp_nchoppers);
- pr("%3d", shp->shp_nxlight);
- count_units(shp);
- pr("%3d", shp->shp_nland);
+ npln = shp_nplane(shp, &nch, &nxl, NULL);
+ pr("%3d%3d%3d", npln - nch - nxl, nch, nxl);
+ pr("%3d", shp_nland(shp));
}
pr("%4d", unit->mobil);
pr("%4d", unit->tech);
- if (unit->ef_type == EF_LAND) {
+ if (type == EF_LAND) {
pr("%4d%%", lnd->lnd_retreat);
- pr("%5d", lnd->lnd_fuel);
}
pr("\n");
}
struct emp_qelem *qp;
struct emp_qelem *newqp;
struct ulist *ulp;
+ struct empobj *unit;
qp = list->q_back;
while (qp != list) {
ulp = (struct ulist *)qp;
+ unit = &ulp->unit.gen;
+ if (CANT_HAPPEN(unit->ef_type != EF_LAND
+ && unit->ef_type != EF_SHIP))
+ continue;
if (actor) {
- mpr(actor, "%s stopped at %s\n", obj_nameof(&ulp->unit.gen),
- xyas(ulp->unit.gen.x, ulp->unit.gen.y,
- ulp->unit.gen.own));
- if (ulp->unit.ef_type == EF_LAND) {
+ mpr(actor, "%s stopped at %s\n", unit_nameof(unit),
+ xyas(unit->x, unit->y, actor));
+ if (unit->ef_type == EF_LAND) {
if (ulp->mobil < -127)
ulp->mobil = -127;
- ulp->unit.land.lnd_mobil = ulp->mobil;
+ unit->mobil = ulp->mobil;
}
}
- if (ulp->unit.ef_type == EF_SHIP)
- ulp->unit.ship.shp_mobil = (int)ulp->mobil;
- put_empobj(&ulp->unit.gen);
+ if (unit->ef_type == EF_SHIP)
+ unit->mobil = (int)ulp->mobil;
+ put_empobj(unit->ef_type, unit->uid, unit);
newqp = qp->q_back;
emp_remque(qp);
free(qp);
}
char *
-unit_path(int together, struct empobj *unit, char *buf)
+unit_path(int together, 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;
+ return buf;
if (!together) {
- if (unit->ef_type == EF_SHIP)
- mpr(unit->own,
- "Cannot go to a destination sector if not all starting in the same sector\n");
- else
- pr("Cannot go to a destination sector if not all starting in the same sector\n");
- return 0;
- }
- if (!getsect(destx, desty, &d_sect)) {
- if (unit->ef_type == EF_SHIP)
- mpr(unit->own, "%d,%d is not a sector\n", destx, desty);
- else
- pr("%d,%d is not a sector\n", destx, desty);
- return 0;
+ pr("Cannot go to a destination sector if not all starting in the same sector\n");
+ return NULL;
}
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) {
- mpr(unit->own, "Can't get to '%s' right now.\n",
- xyas(d_sect.sct_x, d_sect.sct_y, player->cnum));
- return 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(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;
+ }
+ if (unit->ef_type == EF_LAND)
+ pr("Using path '%s'\n", buf);
+ return buf;
}
void
for (qp = list->q_back; qp != list; qp = next) {
next = qp->q_back;
ulp = (struct ulist *)qp;
+ if (CANT_HAPPEN(!(ef_flags(ulp->unit.gen.ef_type) & EFF_XY)))
+ continue;
getsect(ulp->unit.gen.x, ulp->unit.gen.y, §);
- if (ulp->unit.ef_type == EF_SHIP) {
+ if (ulp->unit.gen.ef_type == EF_SHIP) {
if (((struct mchrstr *)ulp->chrp)->m_flags & M_FOOD)
- mpr(ulp->unit.gen.own, "[fert:%d] ", sect.sct_fertil);
+ pr("[fert:%d] ", sect.sct_fertil);
if (((struct mchrstr *)ulp->chrp)->m_flags & M_OIL)
- mpr(ulp->unit.gen.own, "[oil:%d] ", sect.sct_oil);
+ pr("[oil:%d] ", sect.sct_oil);
+ }
+ 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);
+ }
+}
+
+/*
+ * 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.
+ */
+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", 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;
+}
+
+/*
+ * Drop cargo of UNIT.
+ * Give it to NEWOWN, unless it's zero.
+ */
+void
+unit_drop_cargo(struct empobj *unit, natid newown)
+{
+ int type;
+ struct nstr_item ni;
+ union empobj_storage cargo;
+
+ for (type = EF_PLANE; type <= EF_NUKE; type++) {
+ snxtitem_cargo(&ni, type, unit->ef_type, unit->uid);
+ while (nxtitem(&ni, &cargo)) {
+ switch (type) {
+ case EF_PLANE:
+ cargo.plane.pln_ship = cargo.plane.pln_land = -1;
+ break;
+ case EF_LAND:
+ cargo.land.lnd_ship = cargo.land.lnd_land = -1;
+ break;
+ case EF_NUKE:
+ cargo.nuke.nuk_plane = -1;
+ break;
+ }
+ mpr(cargo.gen.own, "%s transferred off %s %d to %s\n",
+ unit_nameof(&cargo.gen),
+ ef_nameof(unit->ef_type), unit->uid,
+ xyas(cargo.gen.x, cargo.gen.y, cargo.gen.own));
+ if (newown)
+ unit_give_away(&cargo.gen, newown, cargo.gen.own);
+ put_empobj(type, cargo.gen.uid, &cargo.gen);
+ }
+ }
+}
+
+/*
+ * Give UNIT and its cargo to RECIPIENT.
+ * No action if RECIPIENT already owns UNIT.
+ * If GIVER is non-zero, inform RECIPIENT and GIVER of the transaction.
+ * Clears mission and group on the units given away.
+ */
+void
+unit_give_away(struct empobj *unit, natid recipient, natid giver)
+{
+ int type;
+ struct nstr_item ni;
+ union empobj_storage cargo;
+
+ if (unit->own == recipient)
+ return;
+
+ if (giver) {
+ mpr(unit->own, "%s given to %s\n",
+ unit_nameof(unit), cname(recipient));
+ mpr(recipient, "%s given to you by %s\n",
+ unit_nameof(unit), cname(giver));
+ }
+
+ unit->own = recipient;
+ 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))
+ unit_give_away(&cargo.gen, recipient, giver);
+ }
+}
+
+/*
+ * Wipe orders and such from UNIT.
+ */
+void
+unit_wipe_orders(struct empobj *unit)
+{
+ struct shpstr *sp;
+ struct plnstr *pp;
+ struct lndstr *lp;
+ int i;
+
+ 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_destx[0] = sp->shp_desty[0] = 0;
+ sp->shp_destx[1] = sp->shp_desty[1] = 0;
+ for (i = 0; i < TMAX; ++i) {
+ sp->shp_tstart[i] = I_NONE;
+ sp->shp_tend[i] = I_NONE;
+ sp->shp_lstart[i] = 0;
+ sp->shp_lend[i] = 0;
}
- mpr(ulp->unit.gen.own, "%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);
+ sp->shp_autonav = 0;
+ sp->shp_mobquota = 0;
+ sp->shp_path[0] = 0;
+ sp->shp_follow = sp->shp_uid;
+ 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();
}
}
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