Switch to Maven file structure

2021-03-30 21:07:35 +02:00
parent 4acc5675d6
commit 813643036b
817 changed files with 16 additions and 0 deletions
--- a/src/main/java/net/server/channel/handlers/MobDamageMobHandler.java
+++ b/src/main/java/net/server/channel/handlers/MobDamageMobHandler.java
@@ -0,0 +1,114 @@
+/*
+	This file is part of the OdinMS Maple Story Server
+    Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
+		       Matthias Butz <matze@odinms.de>
+		       Jan Christian Meyer <vimes@odinms.de>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+package net.server.channel.handlers;
+
+import java.util.Map;
+import client.MapleClient;
+import client.MapleCharacter;
+import client.autoban.AutobanFactory;
+import client.status.MonsterStatus;
+import client.status.MonsterStatusEffect;
+import net.AbstractMaplePacketHandler;
+import server.life.MapleMonster;
+import server.life.MapleMonsterInformationProvider;
+import server.maps.MapleMap;
+import tools.FilePrinter;
+import tools.MaplePacketCreator;
+import tools.data.input.SeekableLittleEndianAccessor;
+
+/**
+ *
+ * @author Jay Estrella
+ * @author Ronan
+ */
+public final class MobDamageMobHandler extends AbstractMaplePacketHandler {
+    @Override
+    public final void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
+        int from = slea.readInt();
+        slea.readInt();
+        int to = slea.readInt();
+        boolean magic = slea.readByte() == 0;
+        int dmg = slea.readInt();
+        MapleCharacter chr = c.getPlayer();
+        
+        MapleMap map = chr.getMap();
+        MapleMonster attacker = map.getMonsterByOid(from);
+        MapleMonster damaged = map.getMonsterByOid(to);
+        
+        if (attacker != null && damaged != null) {
+            int maxDmg = calcMaxDamage(attacker, damaged, magic);     // thanks Darter (YungMoozi) for reporting unchecked dmg
+            
+            if (dmg > maxDmg) {
+                AutobanFactory.DAMAGE_HACK.alert(c.getPlayer(), "Possible packet editing hypnotize damage exploit.");   // thanks Rien dev team
+                
+                FilePrinter.printError(FilePrinter.EXPLOITS + c.getPlayer().getName() + ".txt", c.getPlayer().getName() + " had hypnotized " + MapleMonsterInformationProvider.getInstance().getMobNameFromId(attacker.getId()) + " to attack " + MapleMonsterInformationProvider.getInstance().getMobNameFromId(damaged.getId()) + " with damage " + dmg + " (max: " + maxDmg + ")");
+                dmg = maxDmg;
+            }
+            
+            map.damageMonster(chr, damaged, dmg);
+            map.broadcastMessage(chr, MaplePacketCreator.damageMonster(to, dmg), false);
+        }
+    }
+    
+    private static int calcMaxDamage(MapleMonster attacker, MapleMonster damaged, boolean magic) {
+        int attackerAtk, damagedDef, attackerLevel = attacker.getLevel();
+        double maxDamage;
+        if (magic) {
+            int atkRate = calcModifier(attacker, MonsterStatus.MAGIC_ATTACK_UP, MonsterStatus.MATK);
+            attackerAtk = (attacker.getStats().getMADamage() * atkRate) / 100;
+            
+            int defRate = calcModifier(damaged, MonsterStatus.MAGIC_DEFENSE_UP, MonsterStatus.MDEF);
+            damagedDef = (damaged.getStats().getMDDamage() * defRate) / 100;
+            
+            maxDamage = ((attackerAtk * (1.15 + (0.025 * attackerLevel))) - (0.75 * damagedDef)) * (Math.log(Math.abs(damagedDef - attackerAtk)) / Math.log(12));
+        } else {
+            int atkRate = calcModifier(attacker, MonsterStatus.WEAPON_ATTACK_UP, MonsterStatus.WATK);
+            attackerAtk = (attacker.getStats().getPADamage() * atkRate) / 100;
+            
+            int defRate = calcModifier(damaged, MonsterStatus.WEAPON_DEFENSE_UP, MonsterStatus.WDEF);
+            damagedDef = (damaged.getStats().getPDDamage() * defRate) / 100;
+            
+            maxDamage = ((attackerAtk * (1.15 + (0.025 * attackerLevel))) - (0.75 * damagedDef)) * (Math.log(Math.abs(damagedDef - attackerAtk)) / Math.log(17));
+        }
+        
+        return (int) maxDamage;
+    }
+    
+    private static int calcModifier(MapleMonster monster, MonsterStatus buff, MonsterStatus nerf) {
+        int atkModifier;
+        final Map<MonsterStatus, MonsterStatusEffect> monsterStati = monster.getStati();
+        
+        MonsterStatusEffect atkBuff = monsterStati.get(buff);
+        if (atkBuff != null) {
+            atkModifier = atkBuff.getStati().get(buff);
+        } else {
+            atkModifier = 100;
+        }
+
+        MonsterStatusEffect atkNerf = monsterStati.get(nerf);
+        if (atkNerf != null) {
+            atkModifier -= atkNerf.getStati().get(nerf);
+        }
+        
+        return atkModifier;
+    }
+}