empserver/src/lib/player/dispatch.c
2005-06-13 19:02:49 +00:00

119 lines
3.2 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2005, 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.
*
* ---
*
* dispatch.c: Actually execute the command given
*
* Known contributors to this file:
* Dave Pare, 1994
* Steve McClure, 1998
*/
#include "prototypes.h"
#include "misc.h"
#include "player.h"
#include "com.h"
#include "match.h"
#include "nat.h"
#include "file.h"
#include "proto.h"
#include "empio.h"
#include "optlist.h"
#include "subs.h"
#include "common.h"
#include "server.h"
/*
* Execute command named by player->argp[0].
* BUF is the raw UTF-8 command line. It should have been passed to
* parse() to set up player->argp.
* If REDIR is not null, it's the command's redirection, in UTF-8.
* Return -1 if the command is not unique or doesn't exist, else 0.
*/
int
dispatch(char *buf, char *redir)
{
struct natstr *np;
struct cmndstr *command;
int cmd;
cmd = comtch(player->argp[0], player_coms,
player->ncomstat, player->god);
if (cmd < 0) {
if (cmd == M_NOTUNIQUE)
pr("Command \"%s\" is ambiguous -- ", player->argp[0]);
else if (cmd == M_IGNORE)
return 0;
else {
pr("\"%s\" is not a legal command ", player->argp[0]);
if (player->nstat != player->ncomstat)
pr("now ");
pr("\n");
}
return -1;
}
command = &player_coms[cmd];
np = getnatp(player->cnum);
if (np->nat_btu < command->c_cost && command->c_cost > 0) {
if (player->god || opt_BLITZ)
np->nat_btu = max_btus;
else {
pr("You don't have the BTU's, bozo\n");
return 0;
}
}
if (command->c_addr == 0) {
pr("Command not implemented\n");
return 0;
}
if (update_pending) {
pr("Update in progress...command failed\n");
return 0;
}
if (redir) {
prredir(redir);
uprnf(buf);
pr("\n");
}
player->command = command;
switch (command->c_addr()) {
case RET_OK:
player->btused += command->c_cost;
break;
case RET_FAIL:
pr("command failed\n");
player->btused += command->c_cost;
break;
case RET_SYN:
pr("Usage: %s\n", command->c_form);
break;
default:
logerror("%s: returned bad value", command->c_form);
break;
}
player->command = 0;
return 0;
}