PHP网页游戏学习之Xnova(ogame)源码解读（十六）

十九、攻击任务（MissionCaseAttack.php）

按照舰队任务的编号，排在第一个的就是攻击任务。这个代码很长，看的时候要有耐心。
好在引用的内容并不是很多，并且给出了详细的注释，读者不会晕头转向。

function MissionCaseAttack ($FleetRow)
{
  global $user, $phpEx, $xnova_root_path, $pricelist, $lang, $resource, $CombatCaps;
   // 在舰队的记录中，fleet_start_time代表的不是出发时间，而是到达目的地时间
   // 代表出发时间的是start_time
   // 此外还有fleet_end_time 这个是回到家的时间
    // fleet_end_stay 这个是结束逗留的时间（联合防御和远征任务会用到）
    // 所以下面这个判断的意思是“舰队到达了目的地”，而不是“舰队起飞了”
    if ($FleetRow['fleet_start_time'] <= time()) {
    // fleet_mess是用来记录舰队的状态的，基本可以理解为是在前进途中还是返航途中
    // 但感觉利用得并不好，如果只有两个状态，可以用true 和 false来记录
    // 所以我把它设为了0，1，2三个状态，对于需要停留的任务，停留时就处于第三个状态
    if ($FleetRow['fleet_mess'] == 0) {
      // ↓↓ 这个判断是试探存放战斗数据的文件是否存在
       // 如果文件不存在，就中断操作，提示联系管理员
       if (!isset($CombatCaps[202]['sd'])) {
        message("<span style="FONT-FAMILY: ">" . $lang['sys_no_vars'] . "</span>", $lang['sys_error'], "fleet." . $phpEx, 2);
      }
      // ↓↓ 开始是一系列的数据库查询，取得攻防双方的舰队数量和科技等级
      // 根据舰队信息取得防守方星球数据
      $QryTargetPlanet = "SELECT * FROM {{table}} ";
      $QryTargetPlanet .= "WHERE ";
      $QryTargetPlanet .= "`galaxy` = '" . $FleetRow['fleet_end_galaxy'] . "' AND ";
      $QryTargetPlanet .= "`system` = '" . $FleetRow['fleet_end_system'] . "' AND ";
      $QryTargetPlanet .= "`planet` = '" . $FleetRow['fleet_end_planet'] . "' AND ";
      $QryTargetPlanet .= "`planet_type` = '" . $FleetRow['fleet_end_type'] . "';";
      $TargetPlanet = doquery($QryTargetPlanet, 'planets', true);
      $TargetUserID = $TargetPlanet['id_owner'];
      // 根据舰队信息取得攻击方信息
      $QryCurrentUser = "SELECT * FROM {{table}} ";
      $QryCurrentUser .= "WHERE ";
      $QryCurrentUser .= "`id` = '" . $FleetRow['fleet_owner'] . "';";
      $CurrentUser = doquery($QryCurrentUser , 'users', true);
      $CurrentUserID = $CurrentUser['id'];
      // 由星球数据取得目标星球的所有者的信息
       $QryTargetUser = "SELECT * FROM {{table}} ";
      $QryTargetUser .= "WHERE ";
      $QryTargetUser .= "`id` = '" . $TargetUserID . "';";
      $TargetUser = doquery($QryTargetUser, 'users', true);
      // 然后取得双方的科技信息
       // 其实下面这两个完全可以与上面两个查询整到一起
      $QryTargetTech = "SELECT ";
      $QryTargetTech .= "`military_tech`, `defence_tech`, `shield_tech` ";
      $QryTargetTech .= "FROM {{table}} ";
      $QryTargetTech .= "WHERE ";
      $QryTargetTech .= "`id` = '" . $TargetUserID . "';";
      $TargetTechno = doquery($QryTargetTech, 'users', true);
      $QryCurrentTech = "SELECT ";
      $QryCurrentTech .= "`military_tech`, `defence_tech`, `shield_tech` ";
      $QryCurrentTech .= "FROM {{table}} ";
      $QryCurrentTech .= "WHERE ";
      $QryCurrentTech .= "`id` = '" . $CurrentUserID . "';";
      $CurrentTechno = doquery($QryCurrentTech, 'users', true);
      // ↑↑ 如果有其他的能影响舰队三围的项目（比如指挥官等），也应该在这里一并取出来
      // 生成防守方的舰队（防御）
       // 如果考虑联合防御，在上面还应该把这个星球上联合防御的舰队提取出来
       // 然后一起计算数量和科技水平
       for ($SetItem = 200; $SetItem 0) {
          $TargetSet[$SetItem]['count'] = $TargetPlanet[$resource[$SetItem]];
        }
      }
      // 生成攻击方的舰队，也是用数组存放。'fleet_array'是不能直接拿来用的
       // 这个字段的结构是  编号,数量;编号,数量; ……
       // 所以使用时需要用两次explode把它打散然后存进数组
       $TheFleet = explode(";", $FleetRow['fleet_array']);
      foreach($TheFleet as $a => $b) {
        if ($b != '') {
          $a = explode(",", $b);
          $CurrentSet[$a[0]]['count'] = $a[1];
        }
      }
      // 包含进战斗引擎,ready to fight
      include_once($xnova_root_path . 'includes/ataki.' . $phpEx);
      // 在输入信息之前采集时间
       $mtime = microtime();
      $mtime = explode(" ", $mtime);
      $mtime = $mtime[1] + $mtime[0];
      $starttime = $mtime;
      // 将双方舰队和科技输入战斗引擎，并用$walka来记录输出结果
       $walka = walka($CurrentSet, $TargetSet, $CurrentTechno, $TargetTechno);
      // 再采集时间，得到战斗过程所用的时间
       // 也就是“战斗报告产生于 x.xxxxxxxxxx 秒”的由来
      $mtime = microtime();
      $mtime = explode(" ", $mtime);
      $mtime = $mtime[1] + $mtime[0];
      $endtime = $mtime;
      $totaltime = ($endtime - $starttime);
      // 分别用一个单独的数组来记录攻击方的剩余舰队信息、
       $CurrentSet = $walka["atakujacy"];
      // ……防守方的舰队信息、
       $TargetSet = $walka["wrog"];
      // ……战斗的胜负结果、
       $FleetResult = $walka["wygrana"];
      // ……每一轮的详细情况、
       $dane_do_rw = $walka["dane_do_rw"];
      // 以及双方的损失和废墟情况
       $zlom = $walka["zlom"];
      // 计算攻击方剩下的单位，顺便把装载量也一并计算进去了
      $FleetArray = "";
      $FleetAmount = 0;
      $FleetStorage = 0;
      foreach ($CurrentSet as $Ship => $Count) {
        $FleetStorage += $pricelist[$Ship]["capacity"] * $Count['count'];
        // 用$FleetArray记载舰队情况，转换成数据库里字段的格式，准备“入库”
          $FleetArray .= $Ship . "," . $Count['count'] . ";";
        $FleetAmount += $Count['count'];
      }
      $FleetStorage -= $FleetRow["fleet_resource_metal"];
      $FleetStorage -= $FleetRow["fleet_resource_crystal"];
      $FleetStorage -= $FleetRow["fleet_resource_deuterium"];
      // 计算防守星球战后的情况
       $TargetPlanetUpd = "";
  if (!is_null($TargetSet)) {
        foreach($TargetSet as $Ship => $Count) {
          $TargetPlanetUpd .= "`" . $resource[$Ship] . "` = '" . $Count['count'] . "', ";
        }
  }
      // 如果战斗结果为攻击方获胜，则开始计算掠夺资源的情况 ↓↓
      // 这里可以include进PlanetResourceUpdate.php，在掠夺之前先更新目标星球的资源
       $Mining['metal'] = 0;
      $Mining['crystal'] = 0;
      $Mining['deuter'] = 0;
      if ($FleetResult == "a") {
        if ($FleetStorage > 0) {
          $metal = $TargetPlanet['metal'] / 2;
          $crystal = $TargetPlanet['crystal'] / 2;
          $deuter = $TargetPlanet["deuterium"] / 2;
          if (($metal) > $FleetStorage / 3) {
            $Mining['metal'] = $FleetStorage / 3;
            $FleetStorage = $FleetStorage - $Mining['metal'];
          } else {
            $Mining['metal'] = $metal;
            $FleetStorage = $FleetStorage - $Mining['metal'];
          }
          if (($crystal) > $FleetStorage / 2) {
            $Mining['crystal'] = $FleetStorage / 2;
            $FleetStorage = $FleetStorage - $Mining['crystal'];
          } else {
            $Mining['crystal'] = $crystal;
            $FleetStorage = $FleetStorage - $Mining['crystal'];
          }
          if (($deuter) > $FleetStorage) {
            $Mining['deuter'] = $FleetStorage;
            $FleetStorage = $FleetStorage - $Mining['deuter'];
          } else {
            $Mining['deuter'] = $deuter;
            $FleetStorage = $FleetStorage - $Mining['deuter'];
          }
        }
      }
      // ↑↑ 到这里为止就计算结束了，但如果星球上金属巨多，但晶体和重氢几乎没有
       // 那就会出现装了１／３仓的金属，剩下２／３仓全都空着
       // 所以可以考虑自己把掠夺方法完善一下，也不是很难
      $Mining['metal'] = round($Mining['metal']);
      $Mining['crystal'] = round($Mining['crystal']);
      $Mining['deuter'] = round($Mining['deuter']);
      // ↓↓ 更新数据库
       $QryUpdateTarget = "UPDATE {{table}} SET ";
      $QryUpdateTarget .= $TargetPlanetUpd;
      $QryUpdateTarget .= "`metal` = `metal` - '" . $Mining['metal'] . "', ";
      $QryUpdateTarget .= "`crystal` = `crystal` - '" . $Mining['crystal'] . "', ";
      $QryUpdateTarget .= "`deuterium` = `deuterium` - '" . $Mining['deuter'] . "' ";
      $QryUpdateTarget .= "WHERE ";
      $QryUpdateTarget .= "`galaxy` = '" . $FleetRow['fleet_end_galaxy'] . "' AND ";
      $QryUpdateTarget .= "`system` = '" . $FleetRow['fleet_end_system'] . "' AND ";
      $QryUpdateTarget .= "`planet` = '" . $FleetRow['fleet_end_planet'] . "' AND ";
      $QryUpdateTarget .= "`planet_type` = '" . $FleetRow['fleet_end_type'] . "' ";
      $QryUpdateTarget .= "LIMIT 1;";
      doquery($QryUpdateTarget , 'planets');
      $QryUpdateGalaxy = "UPDATE {{table}} SET ";
      $QryUpdateGalaxy .= "`metal` = `metal` + '" . $zlom['metal'] . "', ";
      $QryUpdateGalaxy .= "`crystal` = `crystal` + '" . $zlom['crystal'] . "' ";
      $QryUpdateGalaxy .= "WHERE ";
      $QryUpdateGalaxy .= "`galaxy` = '" . $FleetRow['fleet_end_galaxy'] . "' AND ";
      $QryUpdateGalaxy .= "`system` = '" . $FleetRow['fleet_end_system'] . "' AND ";
      $QryUpdateGalaxy .= "`planet` = '" . $FleetRow['fleet_end_planet'] . "' ";
      $QryUpdateGalaxy .= "LIMIT 1;";
      doquery($QryUpdateGalaxy , 'galaxy');
      // ↓↓ 计算废墟和损失的情况
       $FleetDebris = $zlom['metal'] + $zlom['crystal'];
      $StrAttackerUnits = sprintf ($lang['sys_attacker_lostunits'], pretty_number ($zlom["atakujacy"]));
      $StrDefenderUnits = sprintf ($lang['sys_defender_lostunits'], pretty_number ($zlom["wrog"]));
      $StrRuins = sprintf ($lang['sys_gcdrunits'], pretty_number ($zlom["metal"]), $lang['Metal'], pretty_number ($zlom['crystal']), $lang['Crystal']);
      $DebrisField = $StrAttackerUnits . "" . $StrDefenderUnits . "" . $StrRuins;
      // ↓↓ 计算产月概率
       $MoonChance = $FleetDebris / 100000;
      if ($FleetDebris > 2000000) {
        $MoonChance = 20;
      }
      if ($FleetDebris = 100000) {
        $UserChance = mt_rand(1, 100);
        $ChanceMoon = sprintf ($lang['sys_moonproba'], $MoonChance);
      }
      // 如果RP够好，就能产生月亮了。当然前提是这个坐标上没有月亮
       if (($UserChance > 0) and ($UserChance $MoonChance) {
        ……
       }
      // ↓↓ 从这里开始生成战斗报告，很长，但并不复杂
       $AttackDate = date("r", $FleetRow["fleet_start_time"]);
      $title = sprintf ($lang['sys_attack_title'], $AttackDate);
      $raport = "" . $title . "";
      $zniszczony = false;
      $a_zestrzelona = 0;
      // ↓↓ 双方攻防信息。如果有其他能影响舰队三围的，也要在这里加进去
       // 当然这里的数据只是显示在战报中而已，是不会影响岛实际战斗的
       $AttackTechon['A'] = $CurrentTechno["military_tech"] * 10;
      $AttackTechon['B'] = $CurrentTechno["defence_tech"] * 10;
      $AttackTechon['C'] = $CurrentTechno["shield_tech"] * 10;
      $AttackerData = sprintf ($lang['sys_attack_attacker_pos'], $CurrentUser["username"],$FleetRow['fleet_start_galaxy'], $FleetRow['fleet_start_system'], $FleetRow['fleet_start_planet']);
      $AttackerTech = sprintf ($lang['sys_attack_techologies'], $AttackTechon['A'],$AttackTechon['B'], $AttackTechon['C']);
      $DefendTechon['A'] = $TargetTechno["military_tech"] * 10;
      $DefendTechon['B'] = $TargetTechno["defence_tech"] * 10;
      $DefendTechon['C'] = $TargetTechno["shield_tech"] * 10;
      $DefenderData = sprintf ($lang['sys_attack_defender_pos'], $TargetUser["username"], $FleetRow['fleet_end_galaxy'], $FleetRow['fleet_end_system'], $FleetRow['fleet_end_planet']);
      $DefenderTech = sprintf ($lang['sys_attack_techologies'], $DefendTechon['A'], $DefendTechon['B'], $DefendTechon['C']);
      // 根据战斗中每一轮的详细情况生成交火的细节，包括每一轮的数量，攻防值，造成和吸收了多少伤害等
       // 有一些键值可能需要看了战斗引擎才会明白它代表的什么，所以看不懂也没关系 ↓↓
      foreach ($dane_do_rw as $a => $b) {
       ……
       }
      // ↓↓ 根据胜负结果显示相应的结尾
       switch ($FleetResult) {
       ……
       }
      // 战斗报告生成于 x.xxxxxxxxxxxx 秒
       $SimMessage = sprintf ($lang['sys_rapport_build_time'], $totaltime);
      $raport .= $SimMessage . "";
      // ↓↓ 将战斗报告编码，存入数据库
       $dpath = (!$user["dpath"]) ? DEFAULT_SKINPATH : $user["dpath"];
      $rid = md5($raport);
      $QryInsertRapport = "INSERT INTO {{table}} SET ";
      $QryInsertRapport .= "`time` = UNIX_TIMESTAMP(), ";
      $QryInsertRapport .= "`id_owner1` = '" . $FleetRow['fleet_owner'] . "', ";
      $QryInsertRapport .= "`id_owner2` = '" . $TargetUserID . "', ";
      $QryInsertRapport .= "`rid` = '" . $rid . "', ";
      $QryInsertRapport .= "`a_zestrzelona` = '" . $a_zestrzelona . "', ";
      $QryInsertRapport .= "`raport` = '" . addslashes ($raport) . "';";
      doquery($QryInsertRapport , 'rw');
      // ↓↓ 这里才是发给玩家的消息，其中有一个onclick的链接到上面的战报
       // 下面这个是发给攻击方的，根据战斗结果不同，标题也有不同的颜色
       $raport = "";
      $raport .= "";
      if ($FleetResult == "a") {
        $raport .= "";
      } elseif ($FleetResult == "r") {
        $raport .= "";
      } elseif ($FleetResult == "w") {
        $raport .= "";
      }
      $raport .= ……
       // ↓ 这里突然回到计算攻击舰队的资源装载量，其实完全可以挪到上面去
       $Mining['metal'] = $Mining['metal'] + $FleetRow["fleet_resource_metal"];
      $Mining['crystal'] = $Mining['crystal'] + $FleetRow["fleet_resource_crystal"];
      $Mining['deuter'] = $Mining['deuter'] + $FleetRow["fleet_resource_deuterium"];
      // 更新舰队信息
       $QryUpdateFleet = "UPDATE {{table}} SET ";
      $QryUpdateFleet .= "`fleet_amount` = '" . $FleetAmount . "', ";
      $QryUpdateFleet .= "`fleet_array` = '" . $FleetArray . "', ";
      $QryUpdateFleet .= "`fleet_mess` = '1', ";
      $QryUpdateFleet .= "`fleet_resource_metal` = '" . $Mining['metal'] . "', ";
      $QryUpdateFleet .= "`fleet_resource_crystal` = '" . $Mining['crystal'] . "', ";
      $QryUpdateFleet .= "`fleet_resource_deuterium` = '" . $Mining['deuter'] . "' ";
      $QryUpdateFleet .= "WHERE fleet_id = '" . $FleetRow['fleet_id'] . "' ";
      $QryUpdateFleet .= "LIMIT 1 ;";
      doquery($QryUpdateFleet , 'fleets');
      // 发送战斗消息给攻击方
       SendSimpleMessage ($CurrentUserID, '', $FleetRow['fleet_start_time'], 3, $lang['sys_mess_tower'], $lang['sys_mess_attack_report'], $raport);
      // ↓ 又突然插进来开始计算战斗经验和战斗次数
       // 严重怀疑coder写这个文件时是不是喝高了
       $AddPoint = $CurrentUser['xpraid'] + 1;
      $QryUpdateOfficier = "UPDATE {{table}} SET ";
      $QryUpdateOfficier .= "`xpraid` = '" . $AddPoint . "' ";
      $QryUpdateOfficier .= "WHERE id = '" . $CurrentUserID . "' ";
      $QryUpdateOfficier .= "LIMIT 1 ;";
      doquery($QryUpdateOfficier, 'users');
      $RaidsTotal = $CurrentUser['raids'] + 1;
      if ($FleetResult == "a") {
        $RaidsWin = $CurrentUser['raidswin'] + 1;
        $QryUpdateRaidsCompteur = "UPDATE {{table}} SET ";
        $QryUpdateRaidsCompteur .= "`raidswin` ='" . $RaidsWin . "', ";
        $QryUpdateRaidsCompteur .= "`raids` ='" . $RaidsTotal . "' ";
        $QryUpdateRaidsCompteur .= "WHERE id = '" . $CurrentUserID . "' ";
        $QryUpdateRaidsCompteur .= "LIMIT 1 ;";
        doquery($QryUpdateRaidsCompteur, 'users');
      } elseif ($FleetResult == "r" || $FleetResult == "w") {
        $RaidsLoose = $CurrentUser['raidsloose'] + 1;
        $QryUpdateRaidsCompteur = "UPDATE {{table}} SET ";
        $QryUpdateRaidsCompteur .= "`raidswin` ='" . $RaidsLoose . "', ";
        $QryUpdateRaidsCompteur .= "`raids` ='" . $RaidsTotal . "' ";
        $QryUpdateRaidsCompteur .= "WHERE id = '" . $CurrentUserID . "' ";
        $QryUpdateRaidsCompteur .= "LIMIT 1 ;";
        doquery($QryUpdateRaidsCompteur, 'users');
      }
      // ↓↓ 终于又回来了，开始写发给防御方的消息
       $raport2 = "";
      $raport2 .= "";
      if ($FleetResult == "a") {
        $raport2 .= "";
      } elseif ($FleetResult == "r") {
        $raport2 .= "";
      } elseif ($FleetResult == "w") {
        $raport2 .= "";
      }
      $raport2 .= $lang['sys_mess_attack_report'] . " [" . $FleetRow['fleet_end_galaxy'] . ":" . $FleetRow['fleet_end_system'] . ":" . $FleetRow['fleet_end_planet'] . "]";
      SendSimpleMessage ($TargetUserID, '', $FleetRow['fleet_start_time'], 3, $lang['sys_mess_tower'], $lang['sys_mess_attack_report'], $raport2);
    }
      // ↓↓ 如果舰队回到出发地了，就开始卸货，然后飞机入库
       $fquery = "";
      if ($FleetRow['fleet_end_time'] $Count) {
          $fquery .= "`" . $resource[$Ship] . "` = `" . $resource[$Ship] . "` + '" . $Count['count'] . "', ";
        }
      } else {
        $fleet = explode(";", $FleetRow['fleet_array']);
        foreach($fleet as $a => $b) {
          if ($b != '') {
            $a = explode(",", $b);
            $fquery .= "{$resource[$a[0]]}={$resource[$a[0]]} + {$a[1]}, \n";
          }
        }
      }
      // → 到最后别忘了删除这一条舰队记录，不然会一直占用航道。对其他舰队任务也是一样
       doquery ("DELETE FROM {{table}} WHERE `fleet_id` = " . $FleetRow["fleet_id"], 'fleets');
      if (!($FleetResult == "w")) {
        $QryUpdatePlanet = "UPDATE {{table}} SET ";
        $QryUpdatePlanet .= $fquery;
        $QryUpdatePlanet .= "`metal` = `metal` + " . $FleetRow['fleet_resource_metal'] . ", ";
        $QryUpdatePlanet .= "`crystal` = `crystal` + " . $FleetRow['fleet_resource_crystal'] . ", ";
        $QryUpdatePlanet .= "`deuterium` = `deuterium` + " . $FleetRow['fleet_resource_deuterium'] . " ";
        $QryUpdatePlanet .= "WHERE ";
        $QryUpdatePlanet .= "`galaxy` = " . $FleetRow['fleet_start_galaxy'] . " AND ";
        $QryUpdatePlanet .= "`system` = " . $FleetRow['fleet_start_system'] . " AND ";
        $QryUpdatePlanet .= "`planet` = " . $FleetRow['fleet_start_planet'] . " AND ";
        $QryUpdatePlanet .= "`planet_type` = " . $FleetRow['fleet_start_type'] . " LIMIT 1 ;";
        doquery($QryUpdatePlanet, 'planets');
      }
    }
  }
}