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');
      }
    }
  }
}