BSD 4_3 release

[unix-history] / usr / src / games / sail / assorted.c

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/

#ifndef lint
static char sccsid[] = "@(#)assorted.c  5.1 (Berkeley) 5/29/85";
#endif not lint

#include "externs.h"

table(rig, shot, hittable, on, from, roll)
struct ship *on, *from;
int rig, shot, hittable, roll;
{
       register int hhits = 0, chits = 0, ghits = 0, rhits = 0;
       int Ghit = 0, Hhit = 0, Rhit = 0, Chit = 0;
       int guns, car, pc, hull;
       int crew[3];
       register int n;
       int rigg[4];
       char *message;
       struct Tables *tp;

       pc = on->file->pcrew;
       hull = on->specs->hull;
       crew[0] = on->specs->crew1;
       crew[1] = on->specs->crew2;
       crew[2] = on->specs->crew3;
       rigg[0] = on->specs->rig1;
       rigg[1] = on->specs->rig2;
       rigg[2] = on->specs->rig3;
       rigg[3] = on->specs->rig4;
       if (shot == L_GRAPE)
               Chit = chits = hittable;
       else {
               tp = &(rig ? RigTable : HullTable)[hittable][roll-1];
               Chit = chits = tp->C;
               Rhit = rhits = tp->R;
               Hhit = hhits = tp->H;
               Ghit = ghits = tp->G;
               if (on->file->FS)
                       rhits *= 2;
               if (shot == L_CHAIN) {
                       Ghit = ghits = 0;
                       Hhit = hhits = 0;
               }
       }
       if (on->file->captured != 0) {
               pc -= (chits + 1) / 2;
               chits /= 2;
       }
       for (n = 0; n < 3; n++)
               if (chits > crew[n]) {
                       chits -= crew[n];
                       crew[n] = 0;
               } else {
                       crew[n] -= chits;
                       chits = 0;
               }
       for (n = 0; n < 3; n++)
               if (rhits > rigg[n]){
                       rhits -= rigg[n];
                       rigg[n] = 0;
               } else {
                       rigg[n] -= rhits;
                       rhits = 0;
               }
       if (rigg[3] != -1 && rhits > rigg[3]) {
               rhits -= rigg[3];
               rigg[3] = 0;
       } else if (rigg[3] != -1) {
               rigg[3] -= rhits;
       }
       if (rig && !rigg[2] && (!rigg[3] || rigg[3] == -1))
               makesignal(on, "dismasted!", (struct ship *)0);
       if (portside(from, on, 0)) {
               guns = on->specs->gunR;
               car = on->specs->carR;
       } else {
               guns = on->specs->gunL;
               car = on->specs->carL;
       }
       if (ghits > car) {
               ghits -= car;
               car = 0;
       } else {
               car -= ghits;
               ghits = 0;
       }
       if (ghits > guns){
               ghits -= guns;
               guns = 0;
       } else {
               guns -= ghits;
               ghits = 0;
       }
       hull -= ghits;
       if (Ghit)
               Write(portside(from, on, 0) ? W_GUNR : W_GUNL,
                       on, 0, guns, car, 0, 0);
       hull -= hhits;
       hull = hull < 0 ? 0 : hull;
       if (on->file->captured != 0 && Chit)
               Write(W_PCREW, on, 0, pc, 0, 0, 0);
       if (Hhit)
               Write(W_HULL, on, 0, hull, 0, 0, 0);
       if (Chit)
               Write(W_CREW, on, 0, crew[0], crew[1], crew[2], 0);
       if (Rhit)
               Write(W_RIGG, on, 0, rigg[0], rigg[1], rigg[2], rigg[3]);
       switch (shot) {
       case L_ROUND:
               message = "firing round shot on %s (%c%c)";
               break;
       case L_GRAPE:
               message = "firing grape shot on %s (%c%c)";
               break;
       case L_CHAIN:
               message = "firing chain shot on %s (%c%c)";
               break;
       case L_DOUBLE:
               message = "firing double shot on %s (%c%c)";
               break;
       case L_EXPLODE:
               message = "exploding shot on %s (%c%c)";
       }
       makesignal(from, message, on);
       if (roll == 6 && rig) {
               switch(Rhit) {
               case 0:
                       message = "fore topsail sheets parted";
                       break;
               case 1:
                       message = "mizzen shrouds parted";
                       break;
               case 2:
                       message = "main topsail yard shot away";
                       break;
               case 4:
                       message = "fore topmast and foremast shrouds shot away";
                       break;
               case 5:
                       message = "mizzen mast and yard shot through";
                       break;
               case 6:
                       message = "foremast and spritsail yard shattered";
                       break;
               case 7:
                       message = "main topmast and mizzen mast shattered";
                       break;
               }
               makesignal(on, message, (struct ship *)0);
       } else if (roll == 6) {
               switch (Hhit) {
               case 0:
                       message = "anchor cables severed";
                       break;
               case 1:
                       message = "two anchor stocks shot away";
                       break;
               case 2:
                       message = "quarterdeck bulwarks damaged";
                       break;
               case 3:
                       message = "three gun ports shot away";
                       break;
               case 4:
                       message = "four guns dismounted";
                       break;
               case 5:
                       message = "rudder cables shot through";
                       Write(W_TA, on, 0, 0, 0, 0, 0);
                       break;
               case 6:
                       message = "shot holes below the water line";
                       break;
               }
               makesignal(on, message, (struct ship *)0);
       }
       /*
       if (Chit > 1 && on->file->readyL&R_INITIAL && on->file->readyR&R_INITIAL) {
               on->specs->qual--;
               if (on->specs->qual <= 0) {
                       makesignal(on, "crew mutinying!", (struct ship *)0);
                       on->specs->qual = 5;
                       Write(W_CAPTURED, on, 0, on->file->index, 0, 0, 0);
               } else 
                       makesignal(on, "crew demoralized", (struct ship *)0);
               Write(W_QUAL, on, 0, on->specs->qual, 0, 0, 0);
       }
       */
       if (!hull)
               strike(on, from);
}

Cleansnag(from, to, all, flag)
register struct ship *from, *to;
char all, flag;
{
       if (flag & 1) {
               Write(W_UNGRAP, from, 0, to->file->index, all, 0, 0);
               Write(W_UNGRAP, to, 0, from->file->index, all, 0, 0);
       }
       if (flag & 2) {
               Write(W_UNFOUL, from, 0, to->file->index, all, 0, 0);
               Write(W_UNFOUL, to, 0, from->file->index, all, 0, 0);
       }
       if (!snagged2(from, to)) {
               if (!snagged(from)) {
                       unboard(from, from, 1);         /* defense */
                       unboard(from, from, 0);         /* defense */
               } else
                       unboard(from, to, 0);           /* offense */
               if (!snagged(to)) {
                       unboard(to, to, 1);             /* defense */
                       unboard(to, to, 0);             /* defense */
               } else
                       unboard(to, from, 0);           /* offense */
       }
}

strike(ship, from)
register struct ship *ship, *from;
{
       int points;

       if (ship->file->struck)
               return;
       Write(W_STRUCK, ship, 0, 1, 0, 0, 0);
       points = ship->specs->pts + from->file->points;
       Write(W_POINTS, from, 0, points, 0, 0, 0);
       unboard(ship, ship, 0);         /* all offense */
       unboard(ship, ship, 1);         /* all defense */
       switch (die()) {
       case 3:
       case 4:         /* ship may sink */
               Write(W_SINK, ship, 0, 1, 0, 0, 0);
               break;
       case 5:
       case 6:         /* ship may explode */
               Write(W_EXPLODE, ship, 0, 1, 0, 0, 0);
               break;
       }
       Write(W_SIGNAL, ship, 1, (int) "striking her colours!", 0, 0, 0);
}