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empserver/src/lib/commands/expl.c

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/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program 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
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* 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
*
* ---
*
* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
* related information and legal notices. It is expected that any future
* projects/authors will amend these files as needed.
*
* ---
*
* expl.c: Take over unoccupied sectors
*
* Known contributors to this file:
* Jeff Wallace, 1989
*/
#include "misc.h"
#include "player.h"
#include "var.h"
#include "sect.h"
#include "xy.h"
#include "nsc.h"
#include "item.h"
#include "file.h"
#include "nat.h"
#include "optlist.h"
#include "commands.h"
static int explore_map(s_char *what, coord curx, coord cury, s_char *arg);
int
explore(void)
{
register int amount;
struct sctstr sect;
struct sctstr endsect;
struct sctstr start;
struct sctstr chksect;
double weight;
int mcost, dam;
int infected;
int vtype;
int amt_src;
int amt_dst;
struct ichrstr *ip;
int work;
int loyal;
int own, mob;
int justtook;
coord x, y;
s_char *p;
int n;
int left;
s_char buf[1024];
s_char prompt[128];
if ((ip =
whatitem(player->argp[1], "explore with what? (civ/mil) ")) == 0)
return RET_SYN;
vtype = ip->i_vtype;
if ((vtype != V_CIVIL) && (vtype != V_MILIT)) {
pr("You can only explore with civs and mil.\n");
return RET_FAIL;
}
if ((p = getstarg(player->argp[2], "from sector : ", buf)) == 0)
return RET_SYN;
if (!sarg_xy(p, &x, &y))
return RET_SYN;
if (!getsect(x, y, &sect) || !player->owner) {
pr("Not yours\n");
return RET_FAIL;
}
infected = getvar(V_PSTAGE, (s_char *)&sect, EF_SECTOR) == PLG_INFECT;
if ((amt_src = getvar(vtype, (s_char *)&sect, EF_SECTOR)) <= 0) {
pr("No %s in %s\n", ip->i_name,
xyas(sect.sct_x, sect.sct_y, player->cnum));
return RET_SYN;
}
own = sect.sct_own;
mob = (int)sect.sct_mobil;
if (vtype == V_CIVIL && sect.sct_oldown != own) {
pr("You can't explore with conquered populace!\n");
return RET_SYN;
}
if (mob <= 0) {
pr("No mobility in %s\n",
xyas(sect.sct_x, sect.sct_y, player->cnum));
return RET_SYN;
}
if (vtype == V_CIVIL) {
work = sect.sct_work;
if (work != 100)
pr("Warning: civil unrest\n");
loyal = sect.sct_loyal;
} else if (vtype == V_MILIT) {
work = 100;
loyal = 0;
}
sprintf(prompt, "Number of %s to explore with? (max %d) ",
ip->i_name, amt_src);
amount = onearg(player->argp[3], prompt);
if (!check_sect_ok(&sect))
return RET_FAIL;
if (amount > amt_src) {
amount = amt_src;
pr("Only exploring with %d.\n", amount);
}
if (!want_to_abandon(&sect, vtype, amount, 0)) {
pr("Explore cancelled.\n");
return RET_FAIL;
}
if (!check_sect_ok(&sect))
return RET_FAIL;
if (amount <= 0)
return RET_SYN;
weight = amount * ip->i_lbs;
/* remove commodities from source sector */
getsect(x, y, &start);
amt_src = getvar(vtype, (s_char *)&start, EF_SECTOR);
amt_src -= amount;
if (amt_src < 0) {
pr("%s in %s are gone!\n", ip->i_name,
xyas(start.sct_x, start.sct_y, player->cnum));
return RET_OK;
}
putvar(vtype, amt_src, (s_char *)&start, EF_SECTOR);
start.sct_flags |= MOVE_IN_PROGRESS;
putsect(&start);
/*
* Now parse the path and return ending sector.
*/
dam = 1;
mcost = move_ground((s_char *)ip, &sect, &endsect,
weight, player->argp[4],
explore_map, 1, &dam);
if (dam) {
left = effdamage(amount, dam);
if (left < amount) {
if (left) {
pr("%d of the %s you were exploring with were destroyed!\nOnly %d %s made it to %s\n", amount - left, ip->i_name, left, ip->i_name, xyas(endsect.sct_x, endsect.sct_y, player->cnum));
} else {
pr("All of the %s you were exploring with were destroyed!\n", ip->i_name);
}
amount = left;
}
}
if (mcost > 0)
pr("Total movement cost = %d", mcost);
else
pr("No mobility used");
if (mcost < 0) {
pr("\nExplore aborted");
getsect(start.sct_x, start.sct_y, &sect);
sect.sct_mobil = (u_char)mob;
} else {
/* Charge mobility */
getsect(sect.sct_x, sect.sct_y, &sect);
n = sect.sct_mobil - mcost;
if (n < 0)
n = 0;
sect.sct_mobil = (u_char)n;
pr(", %d mob left in %s", sect.sct_mobil,
xyas(sect.sct_x, sect.sct_y, player->cnum));
putsect(&sect);
getsect(endsect.sct_x, endsect.sct_y, &sect);
}
pr("\n");
justtook = 0;
/*
* Check for a multitude of problems
*/
getsect(endsect.sct_x, endsect.sct_y, &chksect);
if (chksect.sct_type == '.') {
pr("Bridge disappeared!\n");
getsect(start.sct_x, start.sct_y, &start);
start.sct_flags &= ~MOVE_IN_PROGRESS;
putsect(&start);
return RET_FAIL;
}
if (!player->god && chksect.sct_own && chksect.sct_own != player->cnum
&& chksect.sct_type != SCT_SANCT) {
pr("Somebody beat you there!\n");
/* Send them back home */
getsect(start.sct_x, start.sct_y, &sect);
if (sect.sct_own != own) {
pr("Someone captured the sector you started from!\n");
pr("Your exploring people die of disappointment!\n");
sect.sct_flags &= ~MOVE_IN_PROGRESS;
putsect(&sect);
return RET_FAIL;
}
}
if (!player->god && !player->owner && sect.sct_type != SCT_SANCT) {
(void)takeover(&sect, player->cnum);
justtook = 1;
sect.sct_oldown = own;
sect.sct_work = work;
sect.sct_loyal = loyal;
}
if (vtype == V_CIVIL && sect.sct_oldown != player->cnum) {
pr("Your civilians don't want to stay!\n");
getsect(start.sct_x, start.sct_y, &sect);
if (sect.sct_own != own) {
pr("Someone captured the sector you started from!\n");
pr("Your exploring people die of disappointment!\n");
sect.sct_flags &= ~MOVE_IN_PROGRESS;
putsect(&sect);
return RET_FAIL;
}
}
getsect(start.sct_x, start.sct_y, &start);
start.sct_flags &= ~MOVE_IN_PROGRESS;
putsect(&start);
amt_dst = getvar(vtype, (s_char *)&sect, EF_SECTOR);
if (32767 - amt_dst < amount) {
amount = 32767 - amt_dst;
pr("Only %d can be left there.\n", amount);
if (amount <= 0)
getsect(start.sct_x, start.sct_y, &sect);
}
if (putvar(vtype, amount + amt_dst, (s_char *)&sect, EF_SECTOR) < 0) {
pr("No more room in %s.\n",
xyas(sect.sct_x, sect.sct_y, player->cnum));
return RET_OK;
}
/*
* Now add commodities to destination sector,
* along with plague that came along for the ride.
* Takeover unowned sectors if not deity.
*/
if (!player->god && sect.sct_type != SCT_SANCT && justtook) {
pr("Sector %s is now yours.\n",
xyas(sect.sct_x, sect.sct_y, player->cnum));
if (opt_MOB_ACCESS) {
time(&sect.sct_access);
sect.sct_mobil = -(etu_per_update / sect_mob_neg_factor);
} else {
sect.sct_mobil = 0;
}
}
if (infected && getvar(V_PSTAGE, (s_char *)&sect, EF_SECTOR) == 0)
putvar(V_PSTAGE, PLG_EXPOSED, (s_char *)&sect, EF_SECTOR);
if (vtype == V_CIVIL) {
if (opt_NEW_WORK) {
sect.sct_loyal = ((amt_dst * sect.sct_loyal) +
(amount * loyal)) / (amt_dst + amount);
sect.sct_work = ((amt_dst * sect.sct_work) +
(amount * work)) / (amt_dst + amount);
} else { /* ! NEW_WORK */
/* It only takes one bad apple... */
if (sect.sct_loyal < loyal)
sect.sct_loyal = loyal;
if (sect.sct_work > work)
sect.sct_work = work;
} /* end NEW_WORK */
}
putsect(&sect);
return RET_OK;
}
/*ARGSUSED*/
static int
explore_map(s_char *what, coord curx, coord cury, s_char *arg)
{
struct nstr_sect ns;
struct natstr *np;
struct sctstr sect;
coord rel_x, rel_y;
s_char range[128];
s_char view[7];
int i;
int changed = 0;
np = getnatp(player->cnum);
rel_x = xrel(np, curx);
rel_y = yrel(np, cury);
sprintf(range, "%d:%d,%d:%d", rel_x - 2, rel_x + 2, rel_y - 1,
rel_y + 1);
if (!snxtsct(&ns, range))
return RET_FAIL;
i = 0;
while (i < 7 && nxtsct(&ns, &sect)) {
view[i] = dchr[sect.sct_type].d_mnem;
switch (sect.sct_type) {
case SCT_WATER:
case SCT_RURAL:
case SCT_MOUNT:
case SCT_WASTE:
case SCT_PLAINS:
break;
default:
if (sect.sct_own != player->cnum && !player->god)
view[i] = '?';
break;
}
changed += map_set(player->cnum, ns.x, ns.y, view[i], 0);
i++;
}
if (changed)
writemap(player->cnum);
if (!getsect(curx, cury, &sect))
return RET_FAIL;
pr(" %c %c min gold fert oil uran\n", view[0], view[1]);
pr(" %c %c %c %3d %4d %4d %4d %4d\n",
view[2], view[3], view[4],
sect.sct_min, sect.sct_gmin, sect.sct_fertil, sect.sct_oil,
sect.sct_uran);
pr(" %c %c\n", view[5], view[6]);
return RET_OK;
}
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