Commit | Line | Data |
---|---|---|
717de9f0 | 1 | #ifndef lint |
6ca45914 | 2 | static char *sccsid = "@(#)dr_2.c 2.4 83/12/17"; |
717de9f0 | 3 | #endif |
717de9f0 | 4 | |
b3a57661 EW |
5 | #include "driver.h" |
6 | ||
7 | #define couldwin(f,t) (f->specs->crew2 > t->specs->crew2 * 1.5) | |
717de9f0 CL |
8 | |
9 | thinkofgrapples() | |
10 | { | |
b3a57661 EW |
11 | register struct ship *sp, *sq; |
12 | char friendly; | |
717de9f0 | 13 | |
b3a57661 EW |
14 | foreachship(sp) { |
15 | if (sp->file->captain[0] || sp->file->dir == 0) | |
16 | continue; | |
17 | foreachship(sq) { | |
18 | friendly = sp->nationality == capship(sq)->nationality; | |
19 | if (!friendly) { | |
20 | if (sp->file->struck || sp->file->captured != 0) | |
21 | continue; | |
22 | if (range(sp, sq) != 1) | |
23 | continue; | |
24 | if (grappled2(sp, sq)) | |
25 | if (toughmelee(sp, sq, 0, 0)) | |
26 | ungrap(sp, sq); | |
27 | else | |
28 | grap(sp, sq); | |
29 | else if (couldwin(sp, sq)) { | |
30 | grap(sp, sq); | |
31 | sp->file->loadwith = L_GRAPE; | |
717de9f0 | 32 | } |
b3a57661 EW |
33 | } else |
34 | ungrap(sp, sq); | |
717de9f0 CL |
35 | } |
36 | } | |
37 | } | |
38 | ||
717de9f0 CL |
39 | checkup() |
40 | { | |
b3a57661 EW |
41 | register struct ship *sp, *sq; |
42 | register char explode, sink; | |
717de9f0 | 43 | |
b3a57661 | 44 | foreachship(sp) { |
8b4ea3df EW |
45 | if (sp->file->dir == 0) |
46 | continue; | |
b3a57661 EW |
47 | explode = sp->file->explode; |
48 | sink = sp->file->sink; | |
b3a57661 EW |
49 | if (explode != 1 && sink != 1) |
50 | continue; | |
8b4ea3df EW |
51 | if (die() < 5) |
52 | continue; | |
53 | Write(sink == 1 ? W_SINK : W_EXPLODE, sp, 0, 2, 0, 0, 0); | |
6ca45914 EW |
54 | Write(W_DIR, sp, 0, 0, 0, 0, 0); |
55 | if (snagged(sp)) | |
56 | foreachship(sq) | |
57 | cleansnag(sp, sq, 1); | |
b3a57661 EW |
58 | if (sink != 1) { |
59 | makesignal(sp, "exploding!", (struct ship *)0); | |
60 | foreachship(sq) { | |
61 | if (sp != sq && sq->file->dir && range(sp, sq) < 4) | |
62 | table(RIGGING, L_EXPLODE, sp->specs->guns/13, sq, sp, 6); | |
63 | } | |
64 | } else | |
65 | makesignal(sp, "sinking!", (struct ship *)0); | |
717de9f0 CL |
66 | } |
67 | } | |
68 | ||
69 | prizecheck() | |
70 | { | |
b3a57661 EW |
71 | register struct ship *sp; |
72 | register int prisoners, points; | |
717de9f0 | 73 | |
b3a57661 EW |
74 | foreachship(sp) { |
75 | if (sp->file->captured == 0) | |
76 | continue; | |
77 | if (sp->file->struck || sp->file->dir == 0) | |
78 | continue; | |
79 | prisoners = sp->specs->crew1 + sp->specs->crew2 + sp->specs->crew3; | |
80 | if (prisoners > sp->file->pcrew * 6) { | |
81 | Write(W_CAPTURED, sp, 0, -1, 0, 0, 0); | |
82 | Write(W_SIGNAL, sp, 1, | |
83 | (int)"prize crew overthrown", 0, 0, 0); | |
84 | points = sp->file->captured->file->points | |
85 | - 2 * sp->specs->pts; | |
86 | Write(W_POINTS, sp->file->captured, 0, points, 0, 0, 0); | |
717de9f0 CL |
87 | } |
88 | } | |
89 | } | |
90 | ||
b3a57661 | 91 | strend(str) |
717de9f0 CL |
92 | char *str; |
93 | { | |
b3a57661 | 94 | register char *p; |
717de9f0 | 95 | |
b3a57661 EW |
96 | for (p = str; *p; p++) |
97 | ; | |
98 | return p == str ? 0 : p[-1]; | |
717de9f0 CL |
99 | } |
100 | ||
b3a57661 EW |
101 | closeon(from, to, command, ta, ma, af) |
102 | register struct ship *from, *to; | |
103 | char command[]; | |
104 | int ma, ta, af; | |
717de9f0 CL |
105 | { |
106 | int high; | |
107 | char temp[10]; | |
108 | ||
109 | temp[0] = command[0] = '\0'; | |
110 | high = -30000; | |
b3a57661 | 111 | try(command, temp, ma, ta, af, ma, from->file->dir, from, to, &high, 0); |
717de9f0 CL |
112 | } |
113 | ||
b3a57661 | 114 | int dtab[] = {0,1,1,2,3,4,4,5}; /* diagonal distances in x==y */ |
717de9f0 | 115 | |
b3a57661 EW |
116 | score(movement, ship, to, onlytemp) |
117 | char movement[]; | |
118 | register struct ship *ship, *to; | |
119 | char onlytemp; | |
717de9f0 | 120 | { |
1eda8103 EW |
121 | char drift; |
122 | int row, col, dir, total, ran; | |
b3a57661 | 123 | register struct File *fp = ship->file; |
717de9f0 | 124 | |
b3a57661 EW |
125 | if ((dir = fp->dir) == 0) |
126 | return 0; | |
127 | row = fp->row; | |
128 | col = fp->col; | |
129 | drift = fp->drift; | |
130 | move(movement, ship, &fp->dir, &fp->row, &fp->col, &drift); | |
131 | if (!*movement) | |
132 | (void) strcpy(movement, "d"); | |
133 | ||
134 | ran = range(ship, to); | |
135 | total = -50 * ran; | |
136 | if (ran < 4 && gunsbear(ship, to)) | |
137 | total += 60; | |
138 | if ((ran = portside(ship, to, 1) - fp->dir) == 4 || ran == -4) | |
139 | total = -30000; | |
140 | ||
141 | if (!onlytemp) { | |
142 | fp->row = row; | |
143 | fp->col = col; | |
144 | fp->dir = dir; | |
145 | } | |
146 | return total; | |
147 | } | |
148 | ||
b3a57661 EW |
149 | move(p, ship, dir, row, col, drift) |
150 | register char *p; | |
151 | register struct ship *ship; | |
1eda8103 EW |
152 | register char *dir; |
153 | register short *row, *col; | |
154 | register char *drift; | |
b3a57661 EW |
155 | { |
156 | int dist; | |
157 | char moved = 0; | |
158 | ||
159 | for (; *p; p++) { | |
160 | switch (*p) { | |
161 | case 'r': | |
162 | if (++*dir == 9) | |
163 | *dir = 1; | |
164 | break; | |
165 | case 'l': | |
166 | if (--*dir == 0) | |
167 | *dir = 8; | |
168 | break; | |
169 | case '1': case '2': case '3': case '4': | |
170 | case '5': case '6': case '7': | |
171 | moved++; | |
172 | if (*dir % 2 == 0) | |
173 | dist = dtab[*p - '0']; | |
174 | else | |
175 | dist = *p - '0'; | |
176 | *row -= dr[*dir] * dist; | |
177 | *col -= dc[*dir] * dist; | |
178 | break; | |
717de9f0 | 179 | } |
717de9f0 | 180 | } |
b3a57661 EW |
181 | if (!windspeed) |
182 | *drift = 1; | |
183 | if (!moved) { | |
184 | if (++*drift > 2) { | |
185 | if (ship->specs->class >= 3 && !snagged(ship) | |
acfebbf7 | 186 | || (turn & 1) == 0) { |
b3a57661 EW |
187 | *row -= dr[winddir]; |
188 | *col -= dc[winddir]; | |
189 | } | |
190 | } | |
191 | } else | |
acfebbf7 | 192 | *drift = 0; |
717de9f0 CL |
193 | } |
194 | ||
b3a57661 EW |
195 | try(command, temp, ma, ta, af, vma, dir, f, t, high, rakeme) |
196 | register struct ship *f, *t; | |
197 | int ma, ta, af, *high, rakeme; | |
198 | char command[], temp[]; | |
717de9f0 CL |
199 | { |
200 | register int new, n; | |
201 | char st[4]; | |
b3a57661 | 202 | #define rakeyou (gunsbear(f, t) && !gunsbear(t, f)) |
717de9f0 CL |
203 | |
204 | if ((n = strend(temp)) < '1' || n > '9') | |
b3a57661 EW |
205 | for (n = 1; vma - n >= 0; n++) { |
206 | (void) sprintf(st, "%d", n); | |
207 | (void) strcat(temp, st); | |
208 | new = score(temp, f, t, rakeme); | |
209 | if (new > *high && (!rakeme || rakeyou)) { | |
717de9f0 | 210 | *high = new; |
b3a57661 | 211 | (void) strcpy(command, temp); |
717de9f0 | 212 | } |
b3a57661 EW |
213 | try(command, temp, ma-n, ta, af, vma-n, |
214 | dir, f, t, high, rakeme); | |
717de9f0 CL |
215 | rmend(temp); |
216 | } | |
b3a57661 EW |
217 | if (ma > 0 && ta > 0 && (n = strend(temp)) != 'l' && n != 'r' || !strlen(temp)) { |
218 | (void) strcat(temp, "r"); | |
219 | new = score(temp, f, t, rakeme); | |
220 | if (new > *high && (!rakeme || gunsbear(f, t) && !gunsbear(t, f))) { | |
717de9f0 | 221 | *high = new; |
b3a57661 | 222 | (void) strcpy(command, temp); |
717de9f0 | 223 | } |
b3a57661 | 224 | try(command, temp, ma-1, ta-1, af, min(ma-1, maxmove(f, (dir == 8 ? 1 : dir+1), 0)), (dir == 8 ? 1 : dir+1),f,t,high,rakeme); |
717de9f0 CL |
225 | rmend(temp); |
226 | } | |
b3a57661 EW |
227 | if ((ma > 0 && ta > 0 && (n = strend(temp)) != 'l' && n != 'r') || !strlen(temp)){ |
228 | (void) strcat(temp, "l"); | |
229 | new = score(temp, f, t, rakeme); | |
230 | if (new > *high && (!rakeme || (gunsbear(f, t) && !gunsbear(t, f)))){ | |
717de9f0 | 231 | *high = new; |
b3a57661 | 232 | (void) strcpy(command, temp); |
717de9f0 | 233 | } |
b3a57661 | 234 | try(command, temp, ma-1, ta-1, af, (min(ma-1,maxmove(f, (dir-1 ? dir-1 : 8), 0))), (dir-1 ? dir -1 : 8), f, t, high, rakeme); |
717de9f0 CL |
235 | rmend(temp); |
236 | } | |
237 | } | |
9224751f EW |
238 | |
239 | rmend(str) | |
240 | char *str; | |
241 | { | |
242 | register char *p; | |
243 | ||
244 | for (p = str; *p; p++) | |
245 | ; | |
246 | if (p != str) | |
247 | *--p = 0; | |
248 | } |