empserver/src/lib/subs/border.c

117 lines
2.7 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2009, 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 files README, COPYING and CREDITS in the root of the source
* tree for related information and legal notices. It is expected
* that future projects/authors will amend these files as needed.
*
* ---
*
* border.c: Create a border around a map
*
* Known contributors to this file:
*
*/
#include <config.h>
#include "map.h"
#include "optlist.h"
#include "prototypes.h"
#include "xy.h"
/*
* space-fill a map or radar scan;
* null terminate
*/
void
blankfill(char *ptr, struct range *range, int size)
{
char *p;
int row;
int col;
for (row = 0; row < range->height; row++) {
col = (range->width + 1) * (size + 1) / 2 - 1;
p = ptr;
while (--col >= 0)
*p++ = ' ';
*p++ = 0;
ptr += MAPWIDTH(size);
}
}
void
border(struct range *rp, char *prefstr, char *sep)
/* prefixes each line */
/* separates the numbers */
{
int posi, n, x;
if ((WORLD_X / 2) >= 100) {
if (rp->lx + rp->width > 100 || rp->hx - rp->width < -100) {
/*
* hundreds
*/
pr("%s", prefstr);
for (x = rp->lx, n = 0; n < rp->width; n++, x++) {
if (x >= WORLD_X / 2)
x -= WORLD_X;
pr("%s", sep);
if (x < 0 && x > -100) {
pr("-");
} else {
posi = (x < 0 ? -x : x) / 100;
pr("%d", posi % 10);
}
}
pr("\n");
}
}
/*
* tens
*/
pr("%s", prefstr);
for (x = rp->lx, n = 0; n < rp->width; n++, x++) {
if (x >= WORLD_X / 2)
x -= WORLD_X;
pr("%s", sep);
if (x < 0 && x > -10) {
pr("-");
} else {
posi = (x < 0 ? -x : x) / 10;
pr("%d", posi % 10);
}
}
pr("\n");
/*
* units...
*/
pr("%s", prefstr);
for (x = rp->lx, n = 0; n < rp->width; n++, x++) {
if (x >= WORLD_X / 2)
x -= WORLD_X;
posi = (x < 0 ? -x : x);
pr("%s%d", sep, posi % 10);
}
pr("\n");
}