function skirmish($aforce, $dforce)
{
global $t, $options, $submerged;
//conduct opening fire step
$ofsaresolved = false;
$ofsdresolved = false;
$killsfireback = false;
$air_a = false;
$air_d = false;
$avals = array('totalhits' => 0);
$dvals = array('totalhits' => 0);
$alost = array();
$dlost = array();
if ($options['seabattle']) {
//if sea battle:
if (has_sub($aforce)) {
$avals['ofs'] = subattack($aforce, 'attack');
}
//handle attack subs
if (has_sub($dforce)) {
$dvals['ofs'] = subattack($dforce, 'defend');
}
} else {
if ($t == 1 && ($_REQUEST['ruleset'] == 'Classic' || $_REQUEST['ruleset'] == 'Revised')) {
//check for other opening fire
//the amphibious assault casualties for AA50 and AA1942 are moved into the regular take casualities section
if (has_land($aforce) && can_bombard($aforce)) {
//Amphibious assault
#debug ('Bombarding');
$avals['ofs'] = bombard($aforce);
if (isset($aforce['Bat'])) {
$submerged['att']['Bat'] = $aforce['Bat'];
unset($aforce['Bat']);
}
if (isset($aforce['Des'])) {
$submerged['att']['Des'] = $aforce['Des'];
unset($aforce['Des']);
}
}
}
}
if ($t == 1) {
if (aa_present() && has_air($aforce)) {
$dvals['ofs'] = aa_fire($aforce);
}
}
if (isset($avals['ofs'])) {
$ofsd_triaged = triage($dforce, $avals['ofs'], $dlost, 'def');
//determine what the casualties will be from OFS for each side:
$dlost = $ofsd_triaged['lost'];
$avals['totalhits'] += $avals['ofs']['hits'];
if (!$options['seabattle'] or $options['seabattle'] && !isset($dforce['Des'])) {
//resolve casualties if OFS victims are not saved by destroyers
$dforce = $ofsd_triaged['force'];
$ofsdresolved = true;
}
}
//lather, rinse, repeat for defender.
if (isset($dvals['ofs'])) {
//triage attacking casualties from OFS
$ofsa_triaged = triage($aforce, $dvals['ofs'], $alost, 'att');
$alost = $ofsa_triaged['lost'];
$dvals['totalhits'] += $dvals['ofs']['hits'];
if (!$options['seabattle'] or $options['seabattle'] && (!isset($aforce['Des']) && $_REQUEST['ruleset'] !== 'Europe')) {
#take hits right away
$aforce = $ofsa_triaged['force'];
$ofsaresolved = true;
}
}
// for all but sub sneak attacks vs a force with DDs and AA50/AA1942 bombardment, OFS casualties already taken.
//for AA50 and AA1942, taking casualties from bombardment - if it is round 1
if ($t == 1 && ($_REQUEST['ruleset'] == 'AA50' || $_REQUEST['ruleset'] == 'AA1942')) {
if (has_land($aforce) && can_bombard($aforce)) {
//Amphibious assault attacker has to have land units
//bombards can hit air units now in the AA50 and AA1942 editions.
#debug ('Bombarding');
$killsfireback = true;
$avals['ofs'] = bombard($aforce);
#print_r ($avals['ofs']);
$avals['totalhits'] += $avals['ofs']['hits'];
if (isset($aforce['Bat'])) {
$submerged['att']['Bat'] = $aforce['Bat'];
unset($aforce['Bat']);
}
if (isset($aforce['Cru'])) {
$submerged['att']['Cru'] = $aforce['Cru'];
unset($aforce['Cru']);
}
}
}
//if AA50/AA1942 AND attacker has air, but no destroyer, and defender has subs, then
//find hits scored by air (so their hits can be applied to subs or not with DD interaction)
$air_a = false;
//reset boolean flags that keep track if air have already fired in this round of combat
$air_d = false;
if ($_REQUEST['ruleset'] == 'AA50' or $_REQUEST['ruleset'] == 'AA1942') {
if (has_air($aforce) && !isset($aforce['Des']) && has_sub($dforce)) {
//if there are nonsubs in the defenders, then roll for attacking air units
if (nonsubs($dforce)) {
$avals['norm'] = airattack($aforce, 'attack');
$avals['totalhits'] += $avals['norm']['hits'];
//store result from airattack function in a temp array to be merged with the takeshots results later
$airavals = $avals;
}
//set boolean flag to indicate air have fired in this round already
$air_a = true;
}
if (has_air($dforce) && !isset($dforce['Des']) && has_sub($aforce)) {
//if there are nonsubs in the attackers, then roll for defending air units
if (nonsubs($aforce)) {
$dvals['norm'] = airattack($dforce, 'defend');
$dvals['totalhits'] += $dvals['norm']['hits'];
//store result from airattack function in a temp array to be merged with the takeshots results later
$airdvals = $dvals;
}
//set boolean flag to indicate air have fired in this round already
$air_d = true;
}
}
//find number of hits scored by all regular remaining units
if (nonsubs($aforce)) {
$avals['norm'] = takeshots($aforce, 'attack', $air_a);
//pass tracking flag if air has already fired
$avals['totalhits'] += $avals['norm']['hits'];
}
if (nonsubs($dforce) or $options['AA']) {
$dvals['norm'] = takeshots($dforce, 'defend', $air_d);
//pass tracking flag if air has already fired
$dvals['totalhits'] += $dvals['norm']['hits'];
}
//Having allowed the counterattack for sub victims saved by destroyers, now take them off before other casualties are taken
if (isset($ofsa_triaged) && !$ofsaresolved) {
$aforce = $ofsa_triaged['force'];
}
if (isset($ofsd_triaged) && !$ofsdresolved) {
$dforce = $ofsd_triaged['force'];
}
//triage casualties from bombardment for AA50 and AA1942, so use all other OFS hits besides subs
if ($_REQUEST['ruleset'] == 'AA50' || $_REQUEST['ruleset'] == 'AA1942') {
if (nonsubs($aforce) && nonsubs($dforce) && $killsfireback) {
if (isset($avals['ofs'])) {
$d_triaged = triage($dforce, $avals['ofs'], $dlost, 'def');
$dforce = $d_triaged['force'];
$dlost = $d_triaged['lost'];
}
}
}
//Now triagecasualties from air attack
//determine air casualties for defender
if ($air_a && isset($airavals['norm'])) {
$aird_triaged = triage($dforce, $airavals['norm'], $dlost, 'def');
//determine defender's casualties from air attack
$dforce = $aird_triaged['force'];
$dlost = $aird_triaged['lost'];
}
//determine air casualties for attacker
if ($air_d && isset($airdvals['norm'])) {
$aira_triaged = triage($aforce, $airdvals['norm'], $alost, 'att');
//determine attacker's casualties from air attack
$aforce = $aira_triaged['force'];
$alost = $aira_triaged['lost'];
}
//Now, triage all other casualties
if (isset($avals['norm'])) {
$d_triaged = triage($dforce, $avals['norm'], $dlost, 'def');
$dforce = $d_triaged['force'];
$dlost = $d_triaged['lost'];
}
if (isset($dvals['norm'])) {
$a_triaged = triage($aforce, $dvals['norm'], $alost, 'att');
$aforce = $a_triaged['force'];
$alost = $a_triaged['lost'];
}
//merge the attacker airvals and vals arrays into one so dice get displayed correctly.
if ($air_a && isset($airavals['norm'])) {
$avals["totalhits"] += $airavals["totalhits"];
$avals["norm"]["hits"] += $airavals["norm"]["hits"];
$avals["norm"]["punch"] += $airavals["norm"]["punch"];
$avals["norm"]["dice"]["rolled"] += $airavals["norm"]["dice"]["rolled"];
//ADD dice rolls at 1 3 4 5 (possible dice rolls for air units)
//may not need dice rolls at 2 or 6 until air is listed to hit at 2 or 6.
$index = array(1, 3, 4, 5);
foreach ($index as $v) {
if (array_key_exists($v, $airavals["norm"]["dice"]) && array_key_exists($v, $avals["norm"]["dice"])) {
$avals["norm"]["dice"][$v] = array_merge($airavals["norm"]["dice"][$v], $avals["norm"]["dice"][$v]);
} elseif (array_key_exists($v, $airavals["norm"]["dice"])) {
$avals["norm"]["dice"][$v] = $airavals["norm"]["dice"][$v];
}
}
ksort($avals["norm"]["dice"]);
}
//merge the defender airvals and vals arrays into one so dice get displayed correctly.
if ($air_d && isset($airdvals['norm'])) {
$dvals["totalhits"] += $airdvals["totalhits"];
$dvals["norm"]["hits"] += $airdvals["norm"]["hits"];
$dvals["norm"]["punch"] += $airdvals["norm"]["punch"];
$dvals["norm"]["dice"]["rolled"] += $airdvals["norm"]["dice"]["rolled"];
//ADD dice rolls at 1 3 4 5 (possible dice rolls for air units)
//may not need dice rolls at 2 or 6 until air is listed to hit at 2 or 6.
$index = array(1, 3, 4, 5);
foreach ($index as $v) {
if (array_key_exists($v, $airdvals["norm"]["dice"]) && array_key_exists($v, $dvals["norm"]["dice"])) {
$dvals["norm"]["dice"][$v] = array_merge($airdvals["norm"]["dice"][$v], $dvals["norm"]["dice"][$v]);
} elseif (array_key_exists($v, $airdvals["norm"]["dice"])) {
$dvals["norm"]["dice"][$v] = $airdvals["norm"]["dice"][$v];
}
}
ksort($dvals["norm"]["dice"]);
}
return array('att' => array('force' => $aforce, 'lost' => $alost, 'vals' => $avals), 'def' => array('force' => $dforce, 'lost' => $dlost, 'vals' => $dvals));
}
$def[$t]['force'] = $outcome['def']['force'];
$astats = assess($att[$t]['force'], 'attack');
$dstats = assess($def[$t]['force'], 'defend');
$abort = ($astats['count'] - round(($dstats['punch'] + 3) / 6) < $saveunits && $saveunits > 0 or $dstats['count'] - round(($astats['punch'] + 3) / 6) < $strafeunits && $strafeunits > 0 or $dstats['punch'] > 0 and $astats['punch'] / $dstats['punch'] * 100 < $abortratio);
if (!$stalemate) {
if (!has_sea($def[$t]['force']) && (!nonsubs($att[$t]['force']) or isset($_REQUEST['asubschicken'])) && has_sub($att[$t]['force'])) {
$submerged['att'] = array();
if (isset($att[$t]['force']['Sub'])) {
$submerged['att']['Sub'] = $att[$t]['force']['Sub'];
}
if (isset($att[$t]['force']['SSub'])) {
$submerged['att']['SSub'] = $att[$t]['force']['SSub'];
}
$att[$t]['force'] = submerge($att[$t]['force']);
} else {
if (!has_sea($att[$t]['force']) && (!nonsubs($def[$t]['force']) or isset($_REQUEST['dsubschicken'])) && has_sub($def[$t]['force'])) {
$submerged['def'] = array();
if (isset($def[$t]['force']['Sub'])) {
$submerged['def']['Sub'] = $def[$t]['force']['Sub'];
}
if (isset($def[$t]['force']['SSub'])) {
$submerged['def']['SSub'] = $def[$t]['force']['SSub'];
}
$def[$t]['force'] = submerge($def[$t]['force']);
}
}
}
}
// Battle has been resolved
//Note that bombarding Battleships, Cruisers, and Destroyers are also tracked in $submerged.
if (isset($submerged['att']['Sub']) or isset($submerged['att']['SSub'])) {