initial import of 386bsd-0.1 sources

1 files changed, 182 insertions, 0 deletions

diff --git a/trek/warp.c b/trek/warp.c
new file mode 100644
index 00000000..2fc4852a
--- /dev/null
+++ b/trek/warp.c
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 1980 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)warp.c	5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+# include	"trek.h"
+
+/*
+**  MOVE UNDER WARP POWER
+**
+**	This is both the "move" and the "ram" commands, differing
+**	only in the flag 'fl'.  It is also used for automatic
+**	emergency override mode, when 'fl' is < 0 and 'c' and 'd'
+**	are the course and distance to be moved.  If 'fl' >= 0,
+**	the course and distance are asked of the captain.
+**
+**	The guts of this routine are in the routine move(), which
+**	is shared with impulse().  Also, the working part of this
+**	routine is very small; the rest is to handle the slight chance
+**	that you may be moving at some riduculous speed.  In that
+**	case, there is code to handle time warps, etc.
+*/
+
+warp(fl, c, d)
+int	fl, c;
+double	d;
+{
+	int			course;
+	double			power;
+	double			dist;
+	double			time;
+	double			speed;
+	double			frac;
+	register int		percent;
+	register int		i;
+	extern double		move();
+
+	if (Ship.cond == DOCKED)
+		return (printf("%s is docked\n", Ship.shipname));
+	if (damaged(WARP))
+	{
+		return (out(WARP));
+	}
+	if (fl < 0)
+	{
+		course = c;
+		dist = d;
+	}
+	else
+		if (getcodi(&course, &dist))
+			return;
+
+	/* check to see that we are not using an absurd amount of power */
+	power = (dist + 0.05) * Ship.warp3;
+	percent = 100 * power / Ship.energy + 0.5;
+	if (percent >= 85)
+	{
+		printf("Scotty: That would consume %d%% of our remaining energy.\n",
+			percent);
+		if (!getynpar("Are you sure that is wise"))
+			return;
+	}
+
+	/* compute the speed we will move at, and the time it will take */
+	speed = Ship.warp2 / Param.warptime;
+	time = dist / speed;
+
+	/* check to see that that value is not ridiculous */
+	percent = 100 * time / Now.time + 0.5;
+	if (percent >= 85)
+	{
+		printf("Spock: That would take %d%% of our remaining time.\n",
+			percent);
+		if (!getynpar("Are you sure that is wise"))
+			return;
+	}
+
+	/* compute how far we will go if we get damages */
+	if (Ship.warp > 6.0 && ranf(100) < 20 + 15 * (Ship.warp - 6.0))
+	{
+		frac = franf();
+		dist *= frac;
+		time *= frac;
+		damage(WARP, (frac + 1.0) * Ship.warp * (franf() + 0.25) * 0.20);
+	}
+
+	/* do the move */
+	Move.time = move(fl, course, time, speed);
+
+	/* see how far we actually went, and decrement energy appropriately */
+	dist = Move.time * speed;
+	Ship.energy -= dist * Ship.warp3 * (Ship.shldup + 1);
+
+	/* test for bizarre events */
+	if (Ship.warp <= 9.0)
+		return;
+	printf("\n\n  ___ Speed exceeding warp nine ___\n\n");
+	sleep(2);
+	printf("Ship's safety systems malfunction\n");
+	sleep(2);
+	printf("Crew experiencing extreme sensory distortion\n");
+	sleep(4);
+	if (ranf(100) >= 100 * dist)
+	{
+		return (printf("Equilibrium restored -- all systems normal\n"));
+	}
+
+	/* select a bizzare thing to happen to us */
+	percent = ranf(100);
+	if (percent < 70)
+	{
+		/* time warp */
+		if (percent < 35 || !Game.snap)
+		{
+			/* positive time warp */
+			time = (Ship.warp - 8.0) * dist * (franf() + 1.0);
+			Now.date += time;
+			printf("Positive time portal entered -- it is now Stardate %.2f\n",
+				Now.date);
+			for (i = 0; i < MAXEVENTS; i++)
+			{
+				percent = Event[i].evcode;
+				if (percent == E_FIXDV || percent == E_LRTB)
+					Event[i].date += time;
+			}
+			return;
+		}
+
+		/* s/he got lucky: a negative time portal */
+		time = Now.date;
+		i = (int) Etc.snapshot;
+		bmove(i, Quad, sizeof Quad);
+		bmove(i += sizeof Quad, Event, sizeof Event);
+		bmove(i += sizeof Event, &Now, sizeof Now);
+		printf("Negative time portal entered -- it is now Stardate %.2f\n",
+			Now.date);
+		for (i = 0; i < MAXEVENTS; i++)
+			if (Event[i].evcode == E_FIXDV)
+				reschedule(&Event[i], Event[i].date - time);
+		return;
+	}
+
+	/* test for just a lot of damage */
+	if (percent < 80)
+		lose(L_TOOFAST);
+	printf("Equilibrium restored -- extreme damage occured to ship systems\n");
+	for (i = 0; i < NDEV; i++)
+		damage(i, (3.0 * (franf() + franf()) + 1.0) * Param.damfac[i]);
+	Ship.shldup = 0;
+}