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/* |
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* This file is part of Araknemu. |
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* |
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* Araknemu is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser 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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* Araknemu 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 |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with Araknemu. If not, see <https://www.gnu.org/licenses/>. |
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* |
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* Copyright (c) 2017-2022 Vincent Quatrevieux |
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*/ |
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package fr.quatrevieux.araknemu.game.fight.castable.effect.handler.characteristic; |
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import fr.quatrevieux.araknemu.data.constant.Characteristic; |
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import fr.quatrevieux.araknemu.game.fight.Fight; |
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import fr.quatrevieux.araknemu.game.fight.castable.FightCastScope; |
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import fr.quatrevieux.araknemu.game.fight.castable.effect.buff.Buff; |
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import fr.quatrevieux.araknemu.game.fight.castable.effect.buff.BuffEffect; |
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import fr.quatrevieux.araknemu.game.fight.castable.effect.buff.BuffHook; |
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import fr.quatrevieux.araknemu.game.fight.castable.effect.handler.EffectHandler; |
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import fr.quatrevieux.araknemu.game.fight.fighter.Fighter; |
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import fr.quatrevieux.araknemu.game.fight.fighter.FighterData; |
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import fr.quatrevieux.araknemu.game.spell.effect.SpellEffect; |
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import fr.quatrevieux.araknemu.util.Asserter; |
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import org.checkerframework.checker.index.qual.NonNegative; |
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import org.checkerframework.checker.index.qual.Positive; |
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import java.util.HashMap; |
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import java.util.Map; |
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/** |
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* Effect handler for punishment |
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* |
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* Add a characteristic boost when the fight suffer from direct damage |
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* Characteristics mapping must be added using {@link AddCharacteristicOnDamageHandler#register(int, Characteristic)} method |
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* |
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* Parameters: |
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* - first (i.e. min) is the effect used as characteristic boost |
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* - second (i.e. max) is the maximal boost value per turn |
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* - third (i.e. special) is the boost duration |
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* |
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* Note: this buff cannot be dispelled, but the boosted characteristics can |
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*/ |
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public final class AddCharacteristicOnDamageHandler implements EffectHandler, BuffHook { |
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private final Fight fight; |
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/** |
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* Map first effect parameter to related characteristic hook |
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*/ |
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private final Map<Integer, AlterCharacteristicHook> hooksMapping = new HashMap<>(); |
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public AddCharacteristicOnDamageHandler(Fight fight) { |
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this.fight = fight; |
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} |
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@Override |
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public void handle(FightCastScope cast, FightCastScope.EffectScope effect) { |
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throw new UnsupportedOperationException("Alter characteristic effect must be used as a buff"); |
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} |
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@Override |
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public void buff(FightCastScope cast, FightCastScope.EffectScope effect) { |
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final SpellEffect spellEffect = effect.effect(); |
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final Fighter caster = cast.caster(); |
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for (Fighter target : cast.targets()) { |
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target.buffs().add(new Buff( |
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spellEffect, |
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cast.action(), |
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caster, |
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target, |
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this, |
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false |
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)); |
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} |
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} |
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/** |
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* Register an handled characteristic |
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* |
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* @param effectId Handled effect id. This is the first parameter of the spell effect |
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* @param hook Alter characteristic hook to use |
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* |
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* @return This instance |
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*/ |
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public AddCharacteristicOnDamageHandler register(int effectId, AlterCharacteristicHook hook) { |
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hooksMapping.put(effectId, hook); |
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return this; |
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} |
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/** |
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* Register an handled characteristic |
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* |
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* @param effectId Handled effect id. This is the first parameter of the spell effect |
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* @param characteristic The mapped characteristic |
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* |
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* @return This instance |
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*/ |
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public AddCharacteristicOnDamageHandler register(int effectId, Characteristic characteristic) { |
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return register(effectId, AlterCharacteristicHook.add(fight, characteristic)); |
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} |
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@Override |
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public void onDirectDamageApplied(Buff buff, Fighter caster, @Positive int damage) { |
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final Fighter target = buff.target(); |
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final int boostEffectId = buff.effect().min(); |
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final AlterCharacteristicHook hook = hooksMapping.get(boostEffectId); |
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if (hook == null) { |
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throw new IllegalArgumentException("Unsupported effect " + boostEffectId + " for punishment effect"); |
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} |
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final int maximalValue = buff.effect().max() - currentBoostValue(buff, target); |
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if (maximalValue <= 0) { |
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return; |
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} |
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target.buffs().add(new Buff( |
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BuffEffect.withCustomEffectAndDuration(buff.effect(), boostEffectId, Math.min(maximalValue, damage), Asserter.assertGTENegativeOne(buff.effect().special())), |
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buff.action(), |
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buff.caster(), |
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target, |
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hook |
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)); |
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} |
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private @NonNegative int currentBoostValue(Buff buff, FighterData target) { |
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// Add 1 to duration in case of self damage |
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final int expectedEffectDuration = buff.effect().special() + (target.equals(fight.turnList().currentFighter()) ? 1 : 0); |
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int boost = 0; |
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for (Buff activeBuff : target.buffs()) { |
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if (activeBuff.effect().effect() == buff.effect().min() |
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&& activeBuff.remainingTurns() == expectedEffectDuration |
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&& activeBuff.action().equals(buff.action()) |
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) { |
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boost += activeBuff.effect().min(); |
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} |
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} |
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return boost; |
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} |
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} |
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