十八、舰队活动（FlyingFleetHandler.php）
在前文中我们曾经初步研究过舰队活动的源码，提到过舰队活动的触发。现在我进一步分析Xnova中舰队活动，这些在本质上是由玩家触发的，并不是由定时器在进行定时计算。舰队活动的触发是在common.php中进行的，所以入口就在这文件中，代码如下：
//检查是否有到达目的地的舰队
$_fleets = doquery("SELECT * FROM {{table}} WHERE 'fleet_start_time' <= '".time()."';", 'fleets'); // OR fleet_end_time <= ".time()
//循环处理每个舰队
while ($row = mysql_fetch_array($_fleets)) {
$array = array();
$array['galaxy'] = $row['fleet_start_galaxy'];
$array['system'] = $row['fleet_start_system'];
$array['planet'] = $row['fleet_start_planet'];
$array['planet_type'] = $row['fleet_start_type'];
//舰队处理函数
$temp = FlyingFleetHandler ($array);
}
//检查是否有返回出发地的舰队
$_fleets = doquery("SELECT * FROM {{table}} WHERE 'fleet_end_time' <= '".time()."';", 'fleets'); // OR fleet_end_time <= ".time()
//循环处理每个舰队
while ($row = mysql_fetch_array($_fleets)) {
$array = array();
$array['galaxy'] = $row['fleet_end_galaxy'];
$array['system'] = $row['fleet_end_system'];
$array['planet'] = $row['fleet_end_planet'];
$array['planet_type'] = $row['fleet_end_type'];
//舰队处理函数
$temp = FlyingFleetHandler ($array);
}大家看到了，前面这段代码其实写的不好，因为这里每次都会被调用，效率太低了。因此我们在这里可以进行优化，使每次循环只需要一个舰队的ID传递给函数即可；相应的函数也要做修改，有兴趣的自己修改下。
接下来看看函数FlyingFleetHandler（），这是集中调用舰队活动的函数。
//锁表，防止出现数据不同步等问题
doquery("LOCK TABLE {{table}}lunas WRITE, {{table}}rw WRITE,
{{table}}errors WRITE, {{table}}messages WRITE, {{table}}fleets WRITE,
{{table}}planets WRITE, {{table}}galaxy WRITE ,{{table}}users WRITE", "");
//这里一大段就是取得舰队数组，参数完全可以使用舰队ID，优化之
$QryFleet = "SELECT * FROM {{table}} ";
$QryFleet .= "WHERE (";
$QryFleet .= "( ";
$QryFleet .= "`fleet_start_galaxy` = ". $planet['galaxy'] ." AND ";
$QryFleet .= "`fleet_start_system` = ". $planet['system'] ." AND ";
$QryFleet .= "`fleet_start_planet` = ". $planet['planet'] ." AND ";
$QryFleet .= "`fleet_start_type` = ". $planet['planet_type'] ." ";
$QryFleet .= ") OR ( ";
$QryFleet .= "`fleet_end_galaxy` = ". $planet['galaxy'] ." AND ";
$QryFleet .= "`fleet_end_system` = ". $planet['system'] ." AND ";
$QryFleet .= "`fleet_end_planet` = ". $planet['planet'] ." ) AND ";
$QryFleet .= "`fleet_end_type`= ". $planet['planet_type'] ." ) AND ";
$QryFleet .= "( `fleet_start_time` < '". time() ."' OR `fleet_end_time` < '". time() ."' );";
$fleetquery = doquery( $QryFleet, 'fleets' );
//根据舰队活动的目标不同，分别进入不同的函数处理
while ($CurrentFleet = mysql_fetch_array($fleetquery)) {
switch ($CurrentFleet["fleet_mission"]) {
case 1:
// 普通攻击
MissionCaseAttack ( $CurrentFleet );
break;
case 2:
// 这里应该是ACS攻击或者是其他攻击，但是现在没有用
doquery ("DELETE FROM {{table}} WHERE `fleet_id` = '". $CurrentFleet['fleet_id'] ."';", 'fleets');
break;
case 3:
// 运输
MissionCaseTransport ( $CurrentFleet );
break;
case 4:
// 派遣
MissionCaseStay ( $CurrentFleet );
break;
case 5:
// 联合派遣，即ACS防御
MissionCaseStayAlly ( $CurrentFleet );
break;
case 6:
// 侦查
MissionCaseSpy ( $CurrentFleet );
break;
case 7:
// 殖民
MissionCaseColonisation ( $CurrentFleet );
break;
case 8:
// 回收
MissionCaseRecycling ( $CurrentFleet );
break;
case 9:
// 毁月，厉害了
MissionCaseDestruction ( $CurrentFleet );
break;
case 10:
// 保留 !!
break;
case 15:
// 远征、探险
MissionCaseExpedition ( $CurrentFleet );
break;
//其他情况删除舰队，这个是好习惯
default: {
doquery("DELETE FROM {{table}} WHERE `fleet_id` = '". $CurrentFleet['fleet_id'] ."';", 'fleets');
}
}
}
//解锁表
doquery("UNLOCK TABLES", "");上面的函数结构清晰，代码明了，注释也讲的很清楚了。
