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a7aa4907 KM |
1 | #ifndef lint |
2 | static char sccsid[] = "@(#)warp.c 4.1 (Berkeley) %G%"; | |
3 | #endif not lint | |
4 | ||
5 | # include "trek.h" | |
6 | ||
7 | /* | |
8 | ** MOVE UNDER WARP POWER | |
9 | ** | |
10 | ** This is both the "move" and the "ram" commands, differing | |
11 | ** only in the flag 'fl'. It is also used for automatic | |
12 | ** emergency override mode, when 'fl' is < 0 and 'c' and 'd' | |
13 | ** are the course and distance to be moved. If 'fl' >= 0, | |
14 | ** the course and distance are asked of the captain. | |
15 | ** | |
16 | ** The guts of this routine are in the routine move(), which | |
17 | ** is shared with impulse(). Also, the working part of this | |
18 | ** routine is very small; the rest is to handle the slight chance | |
19 | ** that you may be moving at some riduculous speed. In that | |
20 | ** case, there is code to handle time warps, etc. | |
21 | */ | |
22 | ||
23 | warp(fl, c, d) | |
24 | int fl, c; | |
25 | double d; | |
26 | { | |
27 | int course; | |
28 | float power; | |
29 | float dist; | |
30 | float time; | |
31 | float speed; | |
32 | double frac; | |
33 | register int percent; | |
34 | register int i; | |
35 | extern float move(); | |
36 | ||
37 | if (Ship.cond == DOCKED) | |
38 | return (printf("%s is docked\n", Ship.shipname)); | |
39 | if (damaged(WARP)) | |
40 | { | |
41 | return (out(WARP)); | |
42 | } | |
43 | if (fl < 0) | |
44 | { | |
45 | course = c; | |
46 | dist = d; | |
47 | } | |
48 | else | |
49 | if (getcodi(&course, &dist)) | |
50 | return; | |
51 | ||
52 | /* check to see that we are not using an absurd amount of power */ | |
53 | power = (dist + 0.05) * Ship.warp3; | |
54 | percent = 100 * power / Ship.energy + 0.5; | |
55 | if (percent >= 85) | |
56 | { | |
57 | printf("Scotty: That would consume %d%% of our remaining energy.\n", | |
58 | percent); | |
59 | if (!getynpar("Are you sure that is wise")) | |
60 | return; | |
61 | } | |
62 | ||
63 | /* compute the speed we will move at, and the time it will take */ | |
64 | speed = Ship.warp2 / Param.warptime; | |
65 | time = dist / speed; | |
66 | ||
67 | /* check to see that that value is not ridiculous */ | |
68 | percent = 100 * time / Now.time + 0.5; | |
69 | if (percent >= 85) | |
70 | { | |
71 | printf("Spock: That would take %d%% of our remaining time.\n", | |
72 | percent); | |
73 | if (!getynpar("Are you sure that is wise")) | |
74 | return; | |
75 | } | |
76 | ||
77 | /* compute how far we will go if we get damages */ | |
78 | if (Ship.warp > 6.0 && ranf(100) < 20 + 15 * (Ship.warp - 6.0)) | |
79 | { | |
80 | frac = franf(); | |
81 | dist =* frac; | |
82 | time =* frac; | |
83 | damage(WARP, (frac + 1.0) * Ship.warp * (franf() + 0.25) * 0.20); | |
84 | } | |
85 | ||
86 | /* do the move */ | |
87 | Move.time = move(fl, course, time, speed); | |
88 | ||
89 | /* see how far we actually went, and decrement energy appropriately */ | |
90 | dist = Move.time * speed; | |
91 | Ship.energy =- dist * Ship.warp3 * (Ship.shldup + 1); | |
92 | ||
93 | /* test for bizarre events */ | |
94 | if (Ship.warp <= 9.0) | |
95 | return; | |
96 | printf("\n\n ___ Speed exceeding warp nine ___\n\n"); | |
97 | sleep(2); | |
98 | printf("Ship's safety systems malfunction\n"); | |
99 | sleep(2); | |
100 | printf("Crew experiencing extreme sensory distortion\n"); | |
101 | sleep(4); | |
102 | if (ranf(100) >= 100 * dist) | |
103 | { | |
104 | return (printf("Equilibrium restored -- all systems normal\n")); | |
105 | } | |
106 | ||
107 | /* select a bizzare thing to happen to us */ | |
108 | percent = ranf(100); | |
109 | if (percent < 70) | |
110 | { | |
111 | /* time warp */ | |
112 | if (percent < 35 || !Game.snap) | |
113 | { | |
114 | /* positive time warp */ | |
115 | time = (Ship.warp - 8.0) * dist * (franf() + 1.0); | |
116 | Now.date =+ time; | |
117 | printf("Positive time portal entered -- it is now Stardate %.2f\n", | |
118 | Now.date); | |
119 | for (i = 0; i < MAXEVENTS; i++) | |
120 | { | |
121 | percent = Event[i].evcode; | |
122 | if (percent == E_FIXDV || percent == E_LRTB) | |
123 | Event[i].date =+ time; | |
124 | } | |
125 | return; | |
126 | } | |
127 | ||
128 | /* s/he got lucky: a negative time portal */ | |
129 | time = Now.date; | |
130 | i = Etc.snapshot; | |
131 | bmove(i, &Quad, sizeof Quad); | |
132 | bmove(i =+ sizeof Quad, &Event, sizeof Event); | |
133 | bmove(i =+ sizeof Event, &Now, sizeof Now); | |
134 | printf("Negative time portal entered -- it is now Stardate %.2f\n", | |
135 | Now.date); | |
136 | for (i = 0; i < MAXEVENTS; i++) | |
137 | if (Event[i].evcode == E_FIXDV) | |
138 | reschedule(&Event[i], Event[i].date - time); | |
139 | return; | |
140 | } | |
141 | ||
142 | /* test for just a lot of damage */ | |
143 | if (percent < 80) | |
144 | lose(L_TOOFAST); | |
145 | printf("Equilibrium restored -- extreme damage occured to ship systems\n"); | |
146 | for (i = 0; i < NDEV; i++) | |
147 | damage(i, (3.0 * (franf() + franf()) + 1.0) * Param.damfac[i]); | |
148 | Ship.shldup = 0; | |
149 | } |