/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2015, 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/>.
*
* ---
*
- * 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.
+ * 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.
*
* ---
*
* getbit.c: Replaces old bitmap code
- *
+ *
* Known contributors to this file:
* Dave Pare, 1989
*/
#include <config.h>
-#include "misc.h"
-#include "player.h"
-#include "xy.h"
-#include "nsc.h"
-#include "sect.h"
-#include "nat.h"
-#include "prototypes.h"
#include "optlist.h"
-
-
+#include "prototypes.h"
+#include "sect.h"
/*
*
bitmap4,
};
-#define GCFx(x) ((x + WORLD_X) % WORLD_X)
-#define GCFy(y) ((y + WORLD_Y) % WORLD_Y)
-
int
-emp_getbit(int x, int y, u_char *bitmap)
+emp_getbit(int x, int y, unsigned char *bitmap)
{
- int id;
-
- id = (GCFy(y)) * WORLD_X / 2 + GCFx(x) / 2;
- return bitmap[id / 8] & bit(id & 07);
+ int id = sctoff(x, y);
+ if (id < 0)
+ return 0;
+ return bitmap[id >> 3] & bit(id & 07);
}
void
-emp_setbit(int x, int y, u_char *bitmap)
+emp_setbit(int x, int y, unsigned char *bitmap)
{
- register int id;
-
- id = (GCFy(y)) * WORLD_X / 2 + GCFx(x) / 2;
- bitmap[id / 8] |= bit(id & 07);
+ int id = sctoff(x, y);
+ if (id < 0)
+ return;
+ bitmap[id >> 3] |= bit(id & 07);
}
-void
-emp_setbitmap(register int x, register int y, register u_char *bitmap,
- int *bitmaps)
+static void
+emp_setbitmap(int x, int y, unsigned char *bitmap, int *bitmaps)
{
- register int *mp;
- register int id;
- register int dx, dy;
+ int *mp;
+ int id;
+ int dx, dy;
for (mp = bitmaps; *mp != 9999;) {
dx = x + *mp++;
dy = y + *mp++;
- id = (GCFy(dy)) * WORLD_X / 2 + GCFx(dx) / 2;
- bitmap[id / 8] |= bit(id & 07);
+ id = sctoff(dx, dy);
+ bitmap[id >> 3] |= bit(id & 07);
}
}
void
-bitinit2(struct nstr_sect *np, u_char *bitmap, int country)
+bitinit2(struct nstr_sect *np, unsigned char *bitmap, int country)
{
struct sctstr sect;
int eff;