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moveships.c
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moveships.c
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#include "midway.h"
void moveships(void)
{
register int n,i,p;
int target;
target = goodbogey(0);
if (target != 0)
for (n=0; amtable[n] < MAXSHIPS; n++)
if (amtable[n] != player)
shiplist[amtable[n]].course = intercept(amtable[n], target -1);
target = goodbogey(JAPANESE);
if (target != 0)
for (n=0; japtable[n] < MAXSHIPS; n++)
if (japtable[n] != player)
shiplist[japtable[n]].course = intercept(japtable[n], target -1);
for (n=0; n < MAXSHIPS; n++) {
firedflack[n] = 0;
firedguns[n] = 0;
if (shiplist[n].torps && shiplist[n].hits && n != player && n != MIDWAY)
drdc((shiplist[n].course = shiplist[shiplist[n].flagship].course), &shiplist[n].row, &shiplist[n].col);
}
if (player != MIDWAY)
drdc(shiplist[player].course, &shiplist[player].row, &shiplist[player].col);
if (automatic >= 0)
plotships();
for (n=0; amtable[n] < MAXSHIPS; n++) {
if (shiplist[amtable[n]].hits && shiplist[amtable[n]].torps) {
for (i = 0; japtable[i] < MAXSHIPS; i++) {
if (shiplist[japtable[i]].hits && shiplist[japtable[i]].torps) {
if (range(shiplist[amtable[n]].row, shiplist[amtable[n]].col, shiplist[japtable[i]].row, shiplist[japtable[i]].col) < 25) { /* within sight */
for (p=japtable[i]; p < MAXSHIPS && shiplist[p].flagship == japtable[i]; p++)
if (p != player)
fireguns(p, amtable[n]);
for (p=amtable[n]; p < MAXSHIPS && shiplist[p].flagship == amtable[n]; p++)
if (p != player)
fireguns(p, japtable[i]);
newbogey(japtable[i]);
newbogey(amtable[n]);
}
}
}
}
}
fly(american,0,1);
fly(japanese,0,0);
fly(amscouts,1,1);
fly(japscouts,1,0);
if (automatic >= 0)
plotplanes();
steer(american,0,1);
steer(japanese,0,0);
steer(amscouts,1,1);
steer(japscouts,1,0);
}
void fly(struct squadron *planes, int scout, int yank)
{
int speed;
char buf[128];
int dr, dc;
for (; planes; planes = planes -> s_next) {
speed = scout ? 15 : 10;
if (planes -> attack > 0) speed = 3;
dr = dc = 0;
if (scout)
drdc(planes -> course, &dr, &dc);
else
drdc(setcourse(planes, planes -> course), &dr, &dc);
planes -> row += dr * speed;
planes -> col += dc * speed;
if (planes -> fuel-- <= 0) {
switch (planes -> type) {
case F4F:
shiplist[planes -> from].f4f += planes -> planes;
break;
case SBD:
shiplist[planes -> from].sbd += planes -> planes;
break;
case TBF:
shiplist[planes -> from].tbf += planes -> planes;
break;
}
if (planes -> from == player) {
sprintf(buf, "Recovering %d %s", planes -> planes, describe[planes -> type]);
inform(buf, 0);
}
if (yank)
if (scout)
ditch(planes, &amscouts);
else
ditch(planes, &american);
else
if (scout)
ditch(planes, &japscouts);
else
ditch(planes, &japanese);
}
}
}
void steer(struct squadron *planes, int scout, int yank)
{
register int p, k, n, s;
int *table;
char buf[128];
int ran;
struct torpedo *torp;
for (; planes; planes = planes -> s_next) {
table = yank ? japtable : amtable;
for (k=0; table[k] < MAXSHIPS; k++) {
if (shiplist[table[k]].hits && shiplist[table[k]].torps) {
if ((ran = range(planes -> row, planes -> col, shiplist[table[k]].row, shiplist[table[k]].col)) < (scout ? 50 : 30)) {
newbogey(table[k]);
if (!scout && planes -> attack >= 0 && table[k] == shiplist[planes -> course].flagship) {
if (!planes -> attack) {
planes -> attack = 1;
sprintf(buf, "%s under attack", shiplist[table[k]].name);
inform(buf, 0);
for (p=table[k]; p < MAXSHIPS && shiplist[p].flagship == table[k]; p++)
sendcap(planes, p);
}
s = planes -> course = table[k];
if (s != player)
flack(aimflack(s, planes), s);
for (p=s+1; p < MAXSHIPS && shiplist[p].flagship == s; p++) {
if (p != player) {
if (rnd(2))
flack(aimflack(p, planes), p);
else
flack(intercept(p,s),p);
}
}
if (planes -> type == TBF) {
if (ran < 7) {
planes -> attack = -1;
for (n=0; n < planes -> planes; n++) {
if (!(torp = (struct torpedo *) calloc(1, sizeof(struct torpedo)))){
perror("calloc");
exit(1);
}
torp -> next_torp = yank ? amfish : japfish;
if (yank) amfish = torp;
else japfish = torp;
vshape(setcourse(planes, s), n - planes -> planes / 2, &torp -> row, &torp ->col);
torp -> row += planes -> row + rnd(3) - 1;
torp -> col += planes -> col + rnd(3) - 1;
torp -> fromship = planes -> from;
torp -> timeleft = 4 + rnd(12);
torp -> course = setcourse(planes, s);
if (!rnd(10))
torp -> course += rnd(5) -2; /* a few duds */
planes -> course = planes -> from;
planes -> fuel = range(planes -> row, planes -> col, shiplist[planes -> from].row, shiplist[planes -> from].col)/10;
}
}
} else if (ran < 4) {
planes -> attack = -1;
planes -> course = planes -> from;
planes -> fuel = range(planes -> row, planes -> col, shiplist[planes -> from].row, shiplist[planes -> from].col)/10;
if (planes -> type == SBD) {
for (n=0; n < planes -> planes; n++) {
if (rnd(2)) {
sprintf(buf, "%s bombed.", shiplist[s].name);
inform(buf, 0);
shiplist[s].hits--;
shiplist[s].f4f -= shiplist[s].f4f/3;
shiplist[s].tbf -= shiplist[s].tbf/3;
shiplist[s].sbd -= shiplist[s].sbd/3;
}
}
plotsplash(shiplist[s].row, shiplist[s].col, '#');
if (shiplist[s].hits <= 0) {
shiplist[s].hits = 0;
sprintf(buf, "%s sinking!", shiplist[s].name);
inform(buf, 0);
shiplist[planes -> from].points += shiplist[s].value;
if (shiplist[s].flagship == s)
transferflag(s);
else if (s == player)
die();
break;
}
}
}
}
}
}
}
if (!planes -> attack && planes -> fuel <= Fuel[planes -> type]/2) {
planes -> attack = -1; /* return home */
if (scout) planes -> course = setcourse(planes, planes -> from);
else
planes -> course = planes -> from;
}
if (!scout && (!shiplist[planes -> course].hits || !shiplist[planes -> course].torps)) {
if (planes -> course == planes -> from) {
if (!Japanese(planes -> from))
planes -> course = planes -> from = MIDWAY;
else
planes -> course = planes -> from = 22; /* the Hiryu */
} else {
if (shiplist[shiplist[planes -> course].flagship].hits && shiplist[shiplist[planes -> course].flagship].torps) {
planes -> course = shiplist[planes -> course].flagship;
} else {
planes -> course = planes -> from;
planes -> attack = -1;
planes -> fuel = range(planes -> row, planes -> col, shiplist[planes -> from].row, shiplist[planes -> from].col)/10;
}
}
}
}
}
void drdc(int dir, int *dr, int *dc)
{
switch (dir) {
case 0:
*dr -= 1;
break;
case 1:
case 45:
*dr -= 1;
*dc += 1;
break;
case 2:
case 90:
*dc += 1;
break;
case 3:
case 135:
*dr += 1;
*dc += 1;
break;
case 4:
case 180:
*dr += 1;
break;
case 5:
case 225:
*dr += 1;
*dc -= 1;
break;
case 6:
case 270:
*dc -= 1;
break;
case 7:
case 315:
*dr -= 1;
*dc -= 1;
break;
default:
*dr += rnd(3) - 1;
*dc += rnd(3) - 1;
break;
}
}
void sendcap(struct squadron *enemy, int from)
{
int killed = 0;
char buf[128];
if (shiplist[from].hits && shiplist[from].torps && capplanes[from]) {
sprintf(buf, "%s CAP intercepting", shiplist[from].name);
inform(buf, 0);
switch (enemy -> type) {
case F4F:
if (capplanes[from] > 2 * enemy -> planes) {
capplanes[from] -= (killed = enemy -> planes);
enemy -> planes = 0;
} else if (enemy -> planes > 2 * capplanes[from]) {
enemy -> planes -= (killed = capplanes[from]);
capplanes[from] = 0;
} else {
killed = min(capplanes[from], enemy -> planes);
capplanes[from] -= killed;
enemy -> planes -= killed;
}
break;
case SBD:
enemy -> planes -= (killed = capplanes[from] * 3 / 10);
break;
case TBF:
killed = capplanes[from] * 35 / 100;
capplanes[from] -= enemy -> planes * 15 / 100;
enemy -> planes -= killed;
}
if (killed > 0) {
sprintf(buf, "*** %d %s shot down", killed, describe[enemy -> type]);
inform(buf, 0);
}
if (enemy -> planes <= 0) {
if (Japanese(from))
ditch(enemy, &american);
else
ditch(enemy, &japanese);
}
}
}