void acceptmove(void)
{
int ta;
int ma;
char af;
int moved = 0;
int vma, dir;
char prompt[60];
char buf[60], last = '\0';
char *p;
if (!mc->crew3 || snagged(ms) || !windspeed) {
Msg("Unable to move");
return;
}
ta = maxturns(ms, &af);
ma = maxmove(ms, mf->dir, 0);
sprintf(prompt, "move (%d,%c%d): ", ma, af ? '\'' : ' ', ta);
sgetstr(prompt, buf, sizeof buf);
dir = mf->dir;
vma = ma;
for (p = buf; *p; p++)
switch (*p) {
case 'l':
dir -= 2;
case 'r':
if (++dir == 0)
dir = 8;
else if (dir == 9)
dir = 1;
if (last == 't') {
Msg("Ship can't turn that fast.");
*p-- = '\0';
}
last = 't';
ma--;
ta--;
vma = min(ma, maxmove(ms, dir, 0));
if ((ta < 0 && moved) || (vma < 0 && moved))
*p-- = '\0';
break;
case 'b':
ma--;
vma--;
last = 'b';
if ((ta < 0 && moved) || (vma < 0 && moved))
*p-- = '\0';
break;
case '0':
case 'd':
*p-- = '\0';
break;
case '\n':
*p-- = '\0';
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
if (last == '0') {
Msg("Can't move that fast.");
*p-- = '\0';
}
last = '0';
moved = 1;
ma -= *p - '0';
vma -= *p - '0';
if ((ta < 0 && moved) || (vma < 0 && moved))
*p-- = '\0';
break;
default:
if (!isspace((unsigned char) *p)) {
Msg("Input error.");
*p-- = '\0';
}
}
if ((ta < 0 && moved) || (vma < 0 && moved)
|| (af && turnfirst(buf) && moved)) {
Msg("Movement error.");
if (ta < 0 && moved) {
if (mf->FS == 1) {
Write(W_FS, ms, 0, 0, 0, 0);
Msg("No hands to set full sails.");
}
} else if (ma >= 0)
buf[1] = '\0';
}
if (af && !moved) {
if (mf->FS == 1) {
Write(W_FS, ms, 0, 0, 0, 0);
Msg("No hands to set full sails.");
}
}
if (*buf)
strcpy(movebuf, buf);
else
strcpy(movebuf, "d");
Writestr(W_MOVE, ms, movebuf);
Msg("Helm: %s.", movebuf);
}
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++;
}
}
