![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to warp.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSD / games / trek|
Return to warp.c CVS log | Up to [CSRG BSD Unix] / 43BSD / games / trek |
1.1 root 1: /*
2: * Copyright (c) 1980 Regents of the University of California.
3: * All rights reserved. The Berkeley software License Agreement
4: * specifies the terms and conditions for redistribution.
5: */
6:
7: #ifndef lint
8: static char sccsid[] = "@(#)warp.c 5.1 (Berkeley) 1/29/86";
9: #endif not lint
10:
11: # include "trek.h"
12:
13: /*
14: ** MOVE UNDER WARP POWER
15: **
16: ** This is both the "move" and the "ram" commands, differing
17: ** only in the flag 'fl'. It is also used for automatic
18: ** emergency override mode, when 'fl' is < 0 and 'c' and 'd'
19: ** are the course and distance to be moved. If 'fl' >= 0,
20: ** the course and distance are asked of the captain.
21: **
22: ** The guts of this routine are in the routine move(), which
23: ** is shared with impulse(). Also, the working part of this
24: ** routine is very small; the rest is to handle the slight chance
25: ** that you may be moving at some riduculous speed. In that
26: ** case, there is code to handle time warps, etc.
27: */
28:
29: warp(fl, c, d)
30: int fl, c;
31: double d;
32: {
33: int course;
34: double power;
35: double dist;
36: double time;
37: double speed;
38: double frac;
39: register int percent;
40: register int i;
41: extern double move();
42:
43: if (Ship.cond == DOCKED)
44: return (printf("%s is docked\n", Ship.shipname));
45: if (damaged(WARP))
46: {
47: return (out(WARP));
48: }
49: if (fl < 0)
50: {
51: course = c;
52: dist = d;
53: }
54: else
55: if (getcodi(&course, &dist))
56: return;
57:
58: /* check to see that we are not using an absurd amount of power */
59: power = (dist + 0.05) * Ship.warp3;
60: percent = 100 * power / Ship.energy + 0.5;
61: if (percent >= 85)
62: {
63: printf("Scotty: That would consume %d%% of our remaining energy.\n",
64: percent);
65: if (!getynpar("Are you sure that is wise"))
66: return;
67: }
68:
69: /* compute the speed we will move at, and the time it will take */
70: speed = Ship.warp2 / Param.warptime;
71: time = dist / speed;
72:
73: /* check to see that that value is not ridiculous */
74: percent = 100 * time / Now.time + 0.5;
75: if (percent >= 85)
76: {
77: printf("Spock: That would take %d%% of our remaining time.\n",
78: percent);
79: if (!getynpar("Are you sure that is wise"))
80: return;
81: }
82:
83: /* compute how far we will go if we get damages */
84: if (Ship.warp > 6.0 && ranf(100) < 20 + 15 * (Ship.warp - 6.0))
85: {
86: frac = franf();
87: dist *= frac;
88: time *= frac;
89: damage(WARP, (frac + 1.0) * Ship.warp * (franf() + 0.25) * 0.20);
90: }
91:
92: /* do the move */
93: Move.time = move(fl, course, time, speed);
94:
95: /* see how far we actually went, and decrement energy appropriately */
96: dist = Move.time * speed;
97: Ship.energy -= dist * Ship.warp3 * (Ship.shldup + 1);
98:
99: /* test for bizarre events */
100: if (Ship.warp <= 9.0)
101: return;
102: printf("\n\n ___ Speed exceeding warp nine ___\n\n");
103: sleep(2);
104: printf("Ship's safety systems malfunction\n");
105: sleep(2);
106: printf("Crew experiencing extreme sensory distortion\n");
107: sleep(4);
108: if (ranf(100) >= 100 * dist)
109: {
110: return (printf("Equilibrium restored -- all systems normal\n"));
111: }
112:
113: /* select a bizzare thing to happen to us */
114: percent = ranf(100);
115: if (percent < 70)
116: {
117: /* time warp */
118: if (percent < 35 || !Game.snap)
119: {
120: /* positive time warp */
121: time = (Ship.warp - 8.0) * dist * (franf() + 1.0);
122: Now.date += time;
123: printf("Positive time portal entered -- it is now Stardate %.2f\n",
124: Now.date);
125: for (i = 0; i < MAXEVENTS; i++)
126: {
127: percent = Event[i].evcode;
128: if (percent == E_FIXDV || percent == E_LRTB)
129: Event[i].date += time;
130: }
131: return;
132: }
133:
134: /* s/he got lucky: a negative time portal */
135: time = Now.date;
136: i = (int) Etc.snapshot;
137: bmove(i, Quad, sizeof Quad);
138: bmove(i += sizeof Quad, Event, sizeof Event);
139: bmove(i += sizeof Event, &Now, sizeof Now);
140: printf("Negative time portal entered -- it is now Stardate %.2f\n",
141: Now.date);
142: for (i = 0; i < MAXEVENTS; i++)
143: if (Event[i].evcode == E_FIXDV)
144: reschedule(&Event[i], Event[i].date - time);
145: return;
146: }
147:
148: /* test for just a lot of damage */
149: if (percent < 80)
150: lose(L_TOOFAST);
151: printf("Equilibrium restored -- extreme damage occured to ship systems\n");
152: for (i = 0; i < NDEV; i++)
153: damage(i, (3.0 * (franf() + franf()) + 1.0) * Param.damfac[i]);
154: Ship.shldup = 0;
155: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.