288 lines
7.7 KiB
Java
288 lines
7.7 KiB
Java
/*
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* Copyright (C) 2004-2015 L2J Server
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*
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* This file is part of L2J Server.
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*
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* L2J Server is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* L2J Server is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.l2jserver.gameserver.model.drops;
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import java.util.ArrayList;
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import java.util.Collection;
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import com.l2jserver.Config;
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import com.l2jserver.gameserver.datatables.ItemTable;
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import com.l2jserver.gameserver.model.actor.L2Character;
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import com.l2jserver.gameserver.model.holders.ItemHolder;
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import com.l2jserver.gameserver.model.itemcontainer.Inventory;
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import com.l2jserver.gameserver.model.items.L2Item;
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import com.l2jserver.gameserver.util.Util;
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import com.l2jserver.util.Rnd;
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/**
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* @author NosBit
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*/
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public class GeneralDropItem implements IDropItem
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{
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private final int _itemId;
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private final long _min;
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private final long _max;
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private final double _chance;
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/**
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* @param itemId the item id
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* @param min the min count
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* @param max the max count
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* @param chance the chance of this drop item
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*/
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public GeneralDropItem(int itemId, long min, long max, double chance)
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{
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_itemId = itemId;
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_min = min;
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_max = max;
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_chance = chance;
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}
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protected double getGlobalChanceMultiplier(boolean isPremium)
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{
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return 1.;
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}
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protected double getGlobalAmountMultiplier(boolean isPremium)
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{
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return 1.;
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}
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private final long getMinMax(L2Character victim, L2Character killer, long val)
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{
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double multiplier = 1;
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// individual drop amount
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Float individualDropAmountMultiplier = null;
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if (killer.getActingPlayer().hasPremiumStatus())
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{
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final Float normalMultiplier = Config.RATE_DROP_AMOUNT_MULTIPLIER.get(getItemId());
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final Float premiumMultiplier = Config.PREMIUM_RATE_DROP_AMOUNT_BY_ID.get(getItemId());
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if ((normalMultiplier != null) && (premiumMultiplier != null))
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{
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individualDropAmountMultiplier = normalMultiplier * premiumMultiplier;
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}
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else if (normalMultiplier != null)
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{
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individualDropAmountMultiplier = normalMultiplier;
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}
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else if (premiumMultiplier != null)
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{
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individualDropAmountMultiplier = premiumMultiplier;
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}
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}
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else
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{
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individualDropAmountMultiplier = Config.RATE_DROP_AMOUNT_MULTIPLIER.get(getItemId());
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}
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if (individualDropAmountMultiplier != null)
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{
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// individual amount list multiplier
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multiplier *= individualDropAmountMultiplier;
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}
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else
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{
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final L2Item item = ItemTable.getInstance().getTemplate(getItemId());
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// global amount multiplier
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if ((item != null) && item.hasExImmediateEffect())
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{
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// global herb amount multiplier
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multiplier *= Config.RATE_HERB_DROP_AMOUNT_MULTIPLIER;
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}
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else
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{
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// drop type specific amount multiplier
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multiplier *= getGlobalAmountMultiplier(killer.getActingPlayer().hasPremiumStatus());
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}
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}
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// global champions amount multiplier
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if (victim.isChampion())
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{
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multiplier *= getItemId() != Inventory.ADENA_ID ? Config.L2JMOD_CHAMPION_REWARDS : Config.L2JMOD_CHAMPION_ADENAS_REWARDS;
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}
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return (long) (val * multiplier);
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}
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/**
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* Gets the item id
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* @return the item id
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*/
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public int getItemId()
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{
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return _itemId;
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}
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/**
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* Gets the min drop count
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* @return the min
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*/
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public long getMin()
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{
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return _min;
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}
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/**
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* Gets the min drop count
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* @param victim the victim
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* @param killer the killer
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* @return the min modified by any rates.
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*/
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public long getMin(L2Character victim, L2Character killer)
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{
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return getMinMax(victim, killer, getMin());
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}
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/**
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* Gets the max drop count
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* @return the max
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*/
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public long getMax()
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{
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return _max;
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}
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/**
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* Gets the max drop count
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* @param victim the victim
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* @param killer the killer
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* @return the max modified by any rates.
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*/
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public long getMax(L2Character victim, L2Character killer)
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{
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return getMinMax(victim, killer, getMax());
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}
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/**
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* Gets the chance of this drop item.
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* @return the chance
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*/
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public double getChance()
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{
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return _chance;
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}
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/**
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* Gets the chance of this drop item.
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* @param victim the victim
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* @param killer the killer
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* @return the chance modified by any rates.
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*/
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public double getChance(L2Character victim, L2Character killer)
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{
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double multiplier = 1;
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// individual drop chance
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Float individualDropChanceMultiplier = null;
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if (killer.getActingPlayer().hasPremiumStatus())
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{
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final Float normalMultiplier = Config.RATE_DROP_CHANCE_MULTIPLIER.get(getItemId());
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final Float premiumMultiplier = Config.PREMIUM_RATE_DROP_CHANCE_BY_ID.get(getItemId());
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if ((normalMultiplier != null) && (premiumMultiplier != null))
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{
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individualDropChanceMultiplier = normalMultiplier * premiumMultiplier;
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}
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else if (normalMultiplier != null)
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{
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individualDropChanceMultiplier = normalMultiplier;
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}
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else if (premiumMultiplier != null)
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{
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individualDropChanceMultiplier = premiumMultiplier;
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}
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}
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else
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{
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individualDropChanceMultiplier = Config.RATE_DROP_CHANCE_MULTIPLIER.get(getItemId());
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}
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if (individualDropChanceMultiplier != null)
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{
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multiplier *= individualDropChanceMultiplier;
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}
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else
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{
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final L2Item item = ItemTable.getInstance().getTemplate(getItemId());
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if ((item != null) && item.hasExImmediateEffect())
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{
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multiplier *= Config.RATE_HERB_DROP_CHANCE_MULTIPLIER;
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}
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else
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{
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multiplier *= getGlobalChanceMultiplier(killer.getActingPlayer().hasPremiumStatus());
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}
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}
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if (victim.isChampion())
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{
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multiplier *= Config.L2JMOD_CHAMPION_REWARDS;
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}
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return (getChance() * multiplier);
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}
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/*
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* (non-Javadoc)
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* @see com.l2jserver.gameserver.model.drop.IDropItem#calculateDrops(com.l2jserver.gameserver.model.actor.L2Character, com.l2jserver.gameserver.model.actor.L2Character)
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*/
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@Override
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public Collection<ItemHolder> calculateDrops(L2Character victim, L2Character killer)
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{
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final int levelDifference = victim.getLevel() - killer.getLevel();
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final double levelGapChanceToDrop;
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if (getItemId() == Inventory.ADENA_ID)
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{
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levelGapChanceToDrop = Util.map(levelDifference, -Config.DROP_ADENA_MAX_LEVEL_DIFFERENCE, -Config.DROP_ADENA_MIN_LEVEL_DIFFERENCE, Config.DROP_ADENA_MIN_LEVEL_GAP_CHANCE, 100.0);
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}
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else
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{
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levelGapChanceToDrop = Util.map(levelDifference, -Config.DROP_ITEM_MAX_LEVEL_DIFFERENCE, -Config.DROP_ITEM_MIN_LEVEL_DIFFERENCE, Config.DROP_ITEM_MIN_LEVEL_GAP_CHANCE, 100.0);
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}
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// There is a chance of level gap that it wont drop this item
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if (levelGapChanceToDrop < (Rnd.nextDouble() * 100))
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{
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return null;
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}
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final double chance = getChance(victim, killer);
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int successes;
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if (!Config.L2JMOD_OLD_DROP_BEHAVIOR)
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{
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successes = chance > (Rnd.nextDouble() * 100) ? 1 : 0;
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}
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else
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{
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successes = (int) (chance / 100);
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successes += (chance % 100) > (Rnd.nextDouble() * 100) ? 1 : 0;
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}
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if (successes > 0)
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{
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final Collection<ItemHolder> items = new ArrayList<>(1);
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items.add(new ItemHolder(getItemId(), Rnd.get(getMin(victim, killer), getMax(victim, killer)) * successes));
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return items;
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}
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return null;
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}
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}
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