play()
{
register struct ship *sp;
for (;;) {
switch (sgetch("~\b", (struct ship *)0, 0)) {
case 'm':
acceptmove();
break;
case 's':
acceptsignal();
break;
case 'g':
grapungrap();
break;
case 'u':
unfoulplayer();
break;
case 'v':
Signal("%s", (struct ship *)0, version);
break;
case 'b':
acceptboard();
break;
case 'f':
acceptcombat();
break;
case 'l':
loadplayer();
break;
case 'c':
changesail();
break;
case 'r':
repair();
break;
case 'B':
Signal("'Hands to stations!'", (struct ship *)0);
unboard(ms, ms, 1); /* cancel DBP's */
unboard(ms, ms, 0); /* cancel offense */
break;
case '\f':
centerview();
blockalarm();
draw_board();
draw_screen();
unblockalarm();
break;
case 'L':
mf->loadL = L_EMPTY;
mf->loadR = L_EMPTY;
mf->readyL = R_EMPTY;
mf->readyR = R_EMPTY;
Signal("Broadsides unloaded", (struct ship *)0);
break;
case 'q':
Signal("Type 'Q' to quit", (struct ship *)0);
break;
case 'Q':
leave(LEAVE_QUIT);
break;
case 'I':
foreachship(sp)
if (sp != ms)
eyeball(sp);
break;
case 'i':
if ((sp = closestenemy(ms, 0, 1)) == 0)
Signal("No more ships left.");
else
eyeball(sp);
break;
case 'C':
centerview();
blockalarm();
draw_view();
unblockalarm();
break;
case 'U':
upview();
blockalarm();
draw_view();
unblockalarm();
break;
case 'D':
case 'N':
downview();
blockalarm();
draw_view();
unblockalarm();
break;
case 'H':
leftview();
blockalarm();
draw_view();
unblockalarm();
break;
case 'J':
rightview();
blockalarm();
draw_view();
unblockalarm();
break;
case 'F':
lookout();
break;
case 'S':
dont_adjust = !dont_adjust;
blockalarm();
draw_turn();
unblockalarm();
break;
}
}
}
void
moveall() /* move all comp ships */
{
struct ship *sp, *sq; /* r11, r10 */
int n; /* r9 */
int k, l; /* r8, r7 */
int row[NSHIP], col[NSHIP], dir[NSHIP], drift[NSHIP];
char moved[NSHIP];
/*
* first try to create moves for OUR ships
*/
foreachship(sp) {
struct ship *closest;
int ma, ta;
char af;
if (sp->file->captain[0] || sp->file->dir == 0)
continue;
if (!sp->file->struck && windspeed && !snagged(sp)
&& sp->specs->crew3) {
ta = maxturns(sp, &af);
ma = maxmove(sp, sp->file->dir, 0);
closest = closestenemy(sp, 0, 0);
if (closest == 0)
*sp->file->movebuf = '\0';
else
closeon(sp, closest, sp->file->movebuf,
sizeof sp->file->movebuf,
ta, ma, af);
} else
*sp->file->movebuf = '\0';
}
/*
* Then execute the moves for ALL ships (dead ones too),
* checking for collisions and snags at each step.
* The old positions are saved in row[], col[], dir[].
* At the end, we compare and write out the changes.
*/
n = 0;
foreachship(sp) {
if (snagged(sp))
(void) strlcpy(sp->file->movebuf, "d",
sizeof sp->file->movebuf);
else
if (*sp->file->movebuf != 'd')
(void) strlcat(sp->file->movebuf, "d",
sizeof sp->file->movebuf);
row[n] = sp->file->row;
col[n] = sp->file->col;
dir[n] = sp->file->dir;
drift[n] = sp->file->drift;
moved[n] = 0;
n++;
}
/*
* Now resolve collisions.
* This is the tough part.
*/
for (k = 0; stillmoving(k); k++) {
/*
* Step once.
* And propagate the nulls at the end of sp->file->movebuf.
*/
n = 0;
foreachship(sp) {
if (!sp->file->movebuf[k])
sp->file->movebuf[k+1] = '\0';
else if (sp->file->dir)
step(sp->file->movebuf[k], sp, &moved[n]);
n++;
}
/*
* The real stuff.
*/
n = 0;
foreachship(sp) {
if (sp->file->dir == 0 || is_isolated(sp))
goto cont1;
l = 0;
foreachship(sq) {
char snap = 0;
if (sp == sq)
goto cont2;
if (sq->file->dir == 0)
goto cont2;
if (!push(sp, sq))
goto cont2;
if (snagged2(sp, sq) && range(sp, sq) > 1)
snap++;
if (!range(sp, sq) && !fouled2(sp, sq)) {
makesignal(sp, "collision with $$", sq);
if (die() < 4) {
makesignal(sp, "fouled with $$",
sq);
Write(W_FOUL, sp, l, 0, 0, 0);
Write(W_FOUL, sq, n, 0, 0, 0);
}
snap++;
}
if (snap) {
sp->file->movebuf[k + 1] = 0;
sq->file->movebuf[k + 1] = 0;
sq->file->row = sp->file->row - 1;
if (sp->file->dir == 1
|| sp->file->dir == 5)
sq->file->col =
sp->file->col - 1;
else
sq->file->col = sp->file->col;
sq->file->dir = sp->file->dir;
}
cont2:
l++;
}
cont1:
n++;
}
}
/*
* Clear old moves. And write out new pos.
*/
n = 0;
foreachship(sp) {
if (sp->file->dir != 0) {
*sp->file->movebuf = 0;
if (row[n] != sp->file->row)
Write(W_ROW, sp, sp->file->row, 0, 0, 0);
if (col[n] != sp->file->col)
Write(W_COL, sp, sp->file->col, 0, 0, 0);
if (dir[n] != sp->file->dir)
Write(W_DIR, sp, sp->file->dir, 0, 0, 0);
if (drift[n] != sp->file->drift)
Write(W_DRIFT, sp, sp->file->drift, 0, 0, 0);
}
n++;
}
}
