Import of Empire 4.2.12

src/lib/common/getvar.c

@@ -0,0 +1,118 @@
+/*
+ *  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.
+ *
+ *  ---
+ *
+ *  getvar.c: Routines for manipulating variable lists.
+ * 
+ *  Known contributors to this file:
+ *     Dave Pare, 1989
+ */
+
+#include "misc.h"
+#include "var.h"
+#include "file.h"
+#include "common.h"
+
+int
+getvar(int vtype, s_char *sp, int ptype)
+{
+	u_char	*vtypep;
+	u_short	*vamtp;
+	u_char	*nvp;
+	int	amt;
+
+	if (ef_vars(ptype, sp, &nvp, &vtypep, &vamtp) < 0) {
+		logerror("getvar: ptype %d has no vars", ptype);
+		return 0;
+	}
+	amt = vl_find(vtype, vtypep, vamtp, (int) *nvp);
+	if (amt < 0) {
+		logerror("getvar: vl_find returns %d, vtype %d",
+			amt, vtype);
+		return 0;
+	}
+	return amt;
+}
+
+int
+getvec(int class, int *vec, s_char *sp, int ptype)
+{
+	u_char	*vtypep;
+	u_short	*vamtp;
+	u_char	*nvp;
+	int	nv;
+
+	if (ef_vars(ptype, sp, &nvp, &vtypep, &vamtp) < 0) {
+		logerror("getvec: ptype %d has no vars", ptype);
+		return 0;
+	}
+	nv = vl_getvec(vtypep, vamtp, (int)*nvp, class, vec);
+	if (nv < 0) {
+		logerror("vl_getvec: returns %d, ptype %d\n",
+			nv, ptype);
+		return 0;
+	}
+	return nv;
+}
+
+int
+putvar(int vtype, int amt, s_char *sp, int ptype)
+{
+	u_char	*vtypep;
+	u_short	*vamtp;
+	u_char	*nvp;
+	int	maxv;
+
+	if (vtype < 0 || vtype > V_MAX) {
+		logerror("putvar: bad vtype %d\n", vtype);
+		return 0;
+	}
+	if ((maxv = ef_vars(ptype, sp, &nvp, &vtypep, &vamtp)) < 0) {
+		logerror("putvar: ptype %d has no vars", ptype);
+		return 0;
+	}
+	if (amt < 0)
+		amt = 0;
+	return vl_set(vtype, (u_int)amt, vtypep, vamtp, nvp, maxv);
+}
+
+int
+putvec(int class, int *vec, s_char *sp, int ptype)
+{
+	u_char	*vtypep;
+	u_short	*vamtp;
+	u_char	*nvp;
+	int	maxv,x;
+
+	if ((maxv = ef_vars(ptype, sp, &nvp, &vtypep, &vamtp)) < 0) {
+		logerror("putvec: ptype %d has no vars", ptype);
+		return 0;
+	}
+	for(x=0;x<I_MAX;x++)
+		if (vec[x] < 0)
+			vec[x] = 0;
+	return vl_setvec(vtypep, vamtp, nvp, maxv, class, vec);
+}