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Diffstat (limited to 'games/trek/move.c')
-rw-r--r-- | games/trek/move.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/games/trek/move.c b/games/trek/move.c deleted file mode 100644 index 6e413c7..0000000 --- a/games/trek/move.c +++ /dev/null @@ -1,237 +0,0 @@ -/* - * Copyright (c) 1980, 1993 - * The 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 -#if 0 -static char sccsid[] = "@(#)move.c 8.1 (Berkeley) 5/31/93"; -#endif -static const char rcsid[] = - "$FreeBSD$"; -#endif /* not lint */ - -# include "trek.h" - -/* -** Move Under Warp or Impulse Power -** -** `Ramflag' is set if we are to be allowed to ram stars, -** Klingons, etc. This is passed from warp(), which gets it from -** either play() or ram(). Course is the course (0 -> 360) at -** which we want to move. `Speed' is the speed we -** want to go, and `time' is the expected time. It -** can get cut short if a long range tractor beam is to occur. We -** cut short the move so that the user doesn't get docked time and -** energy for distance which he didn't travel. -** -** We check the course through the current quadrant to see that he -** doesn't run into anything. After that, though, space sort of -** bends around him. Note that this puts us in the awkward posi- -** tion of being able to be dropped into a sector which is com- -** pletely surrounded by stars. Oh Well. -** -** If the SINS (Space Inertial Navigation System) is out, we ran- -** domize the course accordingly before ever starting to move. -** We will still move in a straight line. -** -** Note that if your computer is out, you ram things anyway. In -** other words, if your computer and sins are both out, you're in -** potentially very bad shape. -** -** Klingons get a chance to zap you as you leave the quadrant. -** By the way, they also try to follow you (heh heh). -** -** Return value is the actual amount of time used. -** -** -** Uses trace flag 4. -*/ - -double move(ramflag, course, time, speed) -int ramflag; -int course; -double time; -double speed; -{ - double angle; - double x, y, dx, dy; - int ix, iy; - double bigger; - int n; - int i; - double dist; - double sectsize; - double xn; - double evtime; - -# ifdef xTRACE - if (Trace) - printf("move: ramflag %d course %d time %.2f speed %.2f\n", - ramflag, course, time, speed); -# endif - sectsize = NSECTS; - /* initialize delta factors for move */ - angle = course * 0.0174532925; - if (damaged(SINS)) - angle += Param.navigcrud[1] * (franf() - 0.5); - else - if (Ship.sinsbad) - angle += Param.navigcrud[0] * (franf() - 0.5); - dx = -cos(angle); - dy = sin(angle); - bigger = fabs(dx); - dist = fabs(dy); - if (dist > bigger) - bigger = dist; - dx /= bigger; - dy /= bigger; - - /* check for long range tractor beams */ - /**** TEMPORARY CODE == DEBUGGING ****/ - evtime = Now.eventptr[E_LRTB]->date - Now.date; -# ifdef xTRACE - if (Trace) - printf("E.ep = %p, ->evcode = %d, ->date = %.2f, evtime = %.2f\n", - (void *)Now.eventptr[E_LRTB], - Now.eventptr[E_LRTB]->evcode, - Now.eventptr[E_LRTB]->date, evtime); -# endif - if (time > evtime && Etc.nkling < 3) - { - /* then we got a LRTB */ - evtime += 0.005; - time = evtime; - } - else - evtime = -1.0e50; - dist = time * speed; - - /* move within quadrant */ - Sect[Ship.sectx][Ship.secty] = EMPTY; - x = Ship.sectx + 0.5; - y = Ship.secty + 0.5; - xn = NSECTS * dist * bigger; - n = xn + 0.5; -# ifdef xTRACE - if (Trace) - printf("dx = %.2f, dy = %.2f, xn = %.2f, n = %d\n", dx, dy, xn, n); -# endif - Move.free = 0; - - for (i = 0; i < n; i++) - { - ix = (x += dx); - iy = (y += dy); -# ifdef xTRACE - if (Trace) - printf("ix = %d, x = %.2f, iy = %d, y = %.2f\n", ix, x, iy, y); -# endif - if (x < 0.0 || y < 0.0 || x >= sectsize || y >= sectsize) - { - /* enter new quadrant */ - dx = Ship.quadx * NSECTS + Ship.sectx + dx * xn; - dy = Ship.quady * NSECTS + Ship.secty + dy * xn; - if (dx < 0.0) - ix = -1; - else - ix = dx + 0.5; - if (dy < 0.0) - iy = -1; - else - iy = dy + 0.5; -# ifdef xTRACE - if (Trace) - printf("New quad: ix = %d, iy = %d\n", ix, iy); -# endif - Ship.sectx = x; - Ship.secty = y; - compkldist(0); - Move.newquad = 2; - attack(0); - checkcond(); - Ship.quadx = ix / NSECTS; - Ship.quady = iy / NSECTS; - Ship.sectx = ix % NSECTS; - Ship.secty = iy % NSECTS; - if (ix < 0 || Ship.quadx >= NQUADS || iy < 0 || Ship.quady >= NQUADS) - { - if (!damaged(COMPUTER)) - { - dumpme(0); - } - else - lose(L_NEGENB); - } - initquad(0); - n = 0; - break; - } - if (Sect[ix][iy] != EMPTY) - { - /* we just hit something */ - if (!damaged(COMPUTER) && ramflag <= 0) - { - ix = x - dx; - iy = y - dy; - printf("Computer reports navigation error; %s stopped at %d,%d\n", - Ship.shipname, ix, iy); - Ship.energy -= Param.stopengy * speed; - break; - } - /* test for a black hole */ - if (Sect[ix][iy] == HOLE) - { - /* get dumped elsewhere in the galaxy */ - dumpme(1); - initquad(0); - n = 0; - break; - } - ram(ix, iy); - break; - } - } - if (n > 0) - { - dx = Ship.sectx - ix; - dy = Ship.secty - iy; - dist = sqrt(dx * dx + dy * dy) / NSECTS; - time = dist / speed; - if (evtime > time) - time = evtime; /* spring the LRTB trap */ - Ship.sectx = ix; - Ship.secty = iy; - } - Sect[Ship.sectx][Ship.secty] = Ship.ship; - compkldist(0); - return (time); -} |