1 #ifndef lint 2 static char sccsid[] = "@(#)warp.c 4.2 (Berkeley) 05/27/83"; 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 double power; 29 double dist; 30 double time; 31 double speed; 32 double frac; 33 register int percent; 34 register int i; 35 extern double 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 = (int) 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 } 150