1 /*
2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2021, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
5 *
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 *
19 * ---
20 *
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
24 *
25 * ---
26 *
27 * repo.c: Report on various levels (tech, research) of other nations
28 *
29 * Known contributors to this file:
30 * Keith Muller, 1983
31 * Dave Pare, 1986 (rewrite)
32 * Steve McClure, 2000
33 */
34
35 #include <config.h>
36
37 #include "commands.h"
38 #include "optlist.h"
39
40 static void repo_header(void);
41 static void repo_list(struct natstr *, struct natstr *);
42 static void printdiff(struct natstr *, struct natstr *, int what);
43 static int tryprdiff(double, double, double, int, int);
44
45 int
c_report(void)46 c_report(void)
47 {
48 struct natstr *natp;
49 struct natstr nat;
50 struct nstr_item ni;
51
52 if (!snxtitem(&ni, EF_NATION, player->argp[1], NULL))
53 return RET_SYN;
54 prdate();
55 natp = getnatp(player->cnum);
56 repo_header();
57 while (nxtitem(&ni, &nat)) {
58 if (nat.nat_stat == STAT_UNUSED)
59 continue;
60 if (opt_HIDDEN) {
61 if (!player->god && !in_contact(player->cnum, ni.cur))
62 continue;
63 }
64 if (!player->god && nat.nat_stat != STAT_ACTIVE)
65 continue;
66 repo_list(natp, &nat);
67 }
68 return RET_OK;
69 }
70
71 static void
repo_header(void)72 repo_header(void)
73 {
74 pr(" # name tech research education happiness"
75 " %s\n",
76 player->god ? "capital" : " status");
77 }
78
79 static void
repo_list(struct natstr * plnatp,struct natstr * natp)80 repo_list(struct natstr *plnatp, struct natstr *natp)
81 {
82 pr(" %-3d %-14.14s ", natp->nat_cnum, natp->nat_cnam);
83 if (player->god || player->cnum == natp->nat_cnum) {
84 pr(" %7.2f %7.2f %7.2f %7.2f%s",
85 natp->nat_level[NAT_TLEV], natp->nat_level[NAT_RLEV],
86 natp->nat_level[NAT_ELEV], natp->nat_level[NAT_HLEV],
87 player->god ? "" : " ");
88 } else {
89 printdiff(plnatp, natp, NAT_TLEV);
90 printdiff(plnatp, natp, NAT_RLEV);
91 printdiff(plnatp, natp, NAT_ELEV);
92 printdiff(plnatp, natp, NAT_HLEV);
93 }
94 if (player->god) {
95 prxy(" %4d,%-4d\n", natp->nat_xcap, natp->nat_ycap);
96 } else {
97 if (!opt_HIDDEN && influx(natp))
98 pr("In flux\n");
99 else if (!opt_HIDDEN && natp->nat_money < 0)
100 pr("Broke\n");
101 else
102 pr("Active\n");
103 }
104 }
105
106 static void
printdiff(struct natstr * plnatp,struct natstr * natp,int what)107 printdiff(struct natstr *plnatp, struct natstr *natp, int what)
108 {
109 double ours = plnatp->nat_level[what];
110 double theirs;
111 int shift;
112 int tolerance;
113
114 if (ours
115 && plnatp->nat_stat >= STAT_ACTIVE
116 && natp->nat_stat >= STAT_ACTIVE) {
117 theirs = natp->nat_level[what];
118 if ((shift = MIN((int)theirs, (int)ours) - 100) > 0) {
119 ours -= shift;
120 theirs -= shift;
121 } else
122 shift = 0;
123 switch (what) {
124 case NAT_TLEV:
125 tolerance = 20;
126 break;
127 case NAT_RLEV:
128 tolerance = 10;
129 break;
130 default:
131 tolerance = 5;
132 }
133 if (tolerance > 2 * ours)
134 tolerance = (int)(2 * ours);
135 if (tryprdiff(theirs, 2 * ours, -1.0, shift, tolerance))
136 ;
137 else if (tryprdiff(theirs, 1.5 * ours, 2.0 * ours, shift, tolerance))
138 ;
139 else if (tryprdiff(theirs, 1.2 * ours, 1.5 * ours, shift, tolerance))
140 ;
141 else if (tryprdiff(theirs, 1.1 * ours, 1.2 * ours, shift, tolerance))
142 ;
143 else if (tryprdiff(theirs, ours / 1.1, 1.1 * ours, shift, tolerance))
144 ;
145 else if (tryprdiff(theirs, ours / 1.2, ours / 1.1, shift, tolerance))
146 ;
147 else if (tryprdiff(theirs, ours / 1.5, ours / 1.2, shift, tolerance))
148 ;
149 else if (tryprdiff(theirs, ours / 2.0, ours / 1.5, shift, tolerance))
150 ;
151 else if (tryprdiff(theirs, -1.0, ours / 2.0, shift, tolerance)) ;
152 else
153 pr(" n/a ");
154 } else
155 pr(" n/a ");
156 }
157
158 static int
tryprdiff(double theirs,double min,double max,int shift,int tolerance)159 tryprdiff(double theirs, double min, double max, int shift, int tolerance)
160 {
161 double shove;
162
163 if (min < 0) {
164 if (theirs <= max) {
165 if (max < tolerance)
166 max = tolerance;
167 pr(" 0 - %-4d ", (int)max + shift);
168 return 1;
169 }
170 } else if (max < 0) {
171 if (theirs >= min) {
172 pr(" >= %-4d ", (int)min + shift);
173 return 1;
174 }
175 } else if (theirs >= min && theirs <= max) {
176 if (max - min < tolerance) {
177 shove = (tolerance - (max - min)) / 2;
178 if (min + shift - shove >= 0) {
179 min -= shove;
180 max += shove;
181 } else {
182 min = 0;
183 max = tolerance;
184 }
185 }
186 pr("%4d - %-4d ", (int)min + shift, (int)max + shift);
187 return 1;
188 }
189
190 return 0;
191 }
192