/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2014, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2021, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure, Markus Armbruster
*
* Empire is free software: you can redistribute it and/or modify
*
* Known contributors to this file:
* Ron Koenderink, 2007
- * Markus Armbruster, 2009-2014
+ * Markus Armbruster, 2009-2015
*/
#include <config.h>
-#include "file.h"
+#include <math.h>
+#include "map.h"
+#include "optlist.h"
#include "path.h"
#include "player.h"
-#include "optlist.h"
#include "prototypes.h"
#include "unit.h"
return "The Beast #666";
}
-void
+static void
unit_list(struct emp_qelem *unit_list)
{
struct emp_qelem *qp;
}
}
-char *
-unit_path(int together, struct empobj *unit, char *buf, size_t bufsz)
+static void
+unit_view(struct emp_qelem *list)
+{
+ struct sctstr sect;
+ struct emp_qelem *qp;
+ struct emp_qelem *next;
+ struct ulist *ulp;
+
+ 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.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);
+ }
+ 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);
+ 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 "";
+}
+
+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);
+ c_sonar();
+ 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)
+ c_mine();
+ else
+ c_lmine();
+ 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;
if (!sarg_xy(buf, &destx, &desty))
return buf;
- if (!together) {
- pr("Cannot go to a destination sector if not all starting in the same sector\n");
- return NULL;
- }
if (unit->ef_type == EF_SHIP) {
c = path_find(unit->x, unit->y, destx, desty,
player->cnum, MOB_SAIL);
xyas(destx, desty, player->cnum));
return NULL;
}
- if (unit->ef_type == EF_LAND)
- pr("Using path '%s'\n", buf);
+ 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.gen.ef_type) & EFF_XY)))
- continue;
- getsect(ulp->unit.gen.x, ulp->unit.gen.y, §);
- if (ulp->unit.gen.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) {
+ if (type == EF_SHIP) {
+ shp_nav_stay_behind(list, player->cnum);
+ shp_nav_put(list, player->cnum);
+ } else {
+ lnd_mar_stay_behind(list, player->cnum);
+ lnd_mar_put(list, player->cnum);
+ }
+ 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)) {
+ lnd_mar_put(list, player->cnum);
+ return RET_FAIL;
+ }
+ stopping = lnd_mar_dir(list, dir, player->cnum)
+ || lnd_mar_gauntlet(list, 1, player->cnum);
+ }
+ if (dir == DIR_STOP) {
+ CANT_HAPPEN(!QEMPTY(list));
+ 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 sweep mines\n");
+ cp = "";
+ }
}
- 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);
+
+ 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;
+ }
+
+ 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.
+ * 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)
}
/*
- * Update cargo of CARRIER for movement or destruction.
+ * 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
}
/*
- * Drop cargo of UNIT.
- * Give it to NEWOWN, unless it's zero.
+ * Drop cargo of @unit.
+ * Give it to @newown, unless it's zero.
*/
void
unit_drop_cargo(struct empobj *unit, natid newown)
}
/*
- * 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.
+ * 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
}
/*
- * Wipe orders and such from UNIT.
+ * 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;
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;
- }
- 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;