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Arakne#27 Add effect handler for punishment
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153 changes: 153 additions & 0 deletions
153
...u/game/fight/castable/effect/handler/characteristic/AddCharacteristicOnDamageHandler.java
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| @@ -0,0 +1,153 @@ | ||
| /* | ||
| * This file is part of Araknemu. | ||
| * | ||
| * Araknemu is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU Lesser General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * Araknemu 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 Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with Araknemu. If not, see <https://www.gnu.org/licenses/>. | ||
| * | ||
| * Copyright (c) 2017-2022 Vincent Quatrevieux | ||
| */ | ||
|
|
||
| package fr.quatrevieux.araknemu.game.fight.castable.effect.handler.characteristic; | ||
|
|
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| import fr.quatrevieux.araknemu.data.constant.Characteristic; | ||
| import fr.quatrevieux.araknemu.game.fight.Fight; | ||
| import fr.quatrevieux.araknemu.game.fight.castable.CastScope; | ||
| import fr.quatrevieux.araknemu.game.fight.castable.effect.buff.Buff; | ||
| import fr.quatrevieux.araknemu.game.fight.castable.effect.buff.BuffEffect; | ||
| import fr.quatrevieux.araknemu.game.fight.castable.effect.buff.BuffHook; | ||
| import fr.quatrevieux.araknemu.game.fight.castable.effect.handler.EffectHandler; | ||
| import fr.quatrevieux.araknemu.game.fight.fighter.ActiveFighter; | ||
| import fr.quatrevieux.araknemu.game.fight.fighter.PassiveFighter; | ||
| import fr.quatrevieux.araknemu.game.spell.effect.SpellEffect; | ||
| import org.checkerframework.checker.index.qual.NonNegative; | ||
| import org.checkerframework.checker.index.qual.Positive; | ||
|
|
||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
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| /** | ||
| * Effect handler for punishment | ||
| * | ||
| * Add a characteristic boost when the fight suffer from direct damage | ||
| * Characteristics mapping must be added using {@link AddCharacteristicOnDamageHandler#register(int, Characteristic)} method | ||
| * | ||
| * Parameters: | ||
| * - first (i.e. min) is the effect used as characteristic boost | ||
| * - second (i.e. max) is the maximal boost value per turn | ||
| * - third (i.e. special) is the boost duration | ||
| * | ||
| * Note: this buff cannot be dispelled, but the boosted characteristics can | ||
| */ | ||
| public final class AddCharacteristicOnDamageHandler implements EffectHandler, BuffHook { | ||
| private final Fight fight; | ||
|
|
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| /** | ||
| * Map first effect parameter to related characteristic hook | ||
| */ | ||
| private final Map<Integer, AlterCharacteristicHook> hooksMapping = new HashMap<>(); | ||
|
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| public AddCharacteristicOnDamageHandler(Fight fight) { | ||
| this.fight = fight; | ||
| } | ||
|
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| @Override | ||
| public void handle(CastScope cast, CastScope.EffectScope effect) { | ||
| throw new UnsupportedOperationException("Alter characteristic effect must be used as a buff"); | ||
| } | ||
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| @Override | ||
| public void buff(CastScope cast, CastScope.EffectScope effect) { | ||
| final SpellEffect spellEffect = effect.effect(); | ||
| final ActiveFighter caster = cast.caster(); | ||
|
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| for (PassiveFighter target : cast.targets()) { | ||
| target.buffs().add(new Buff( | ||
| spellEffect, | ||
| cast.action(), | ||
| caster, | ||
| target, | ||
| this, | ||
| false | ||
| )); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Register an handled characteristic | ||
| * | ||
| * @param effectId Handled effect id. This is the first parameter of the spell effect | ||
| * @param hook Alter characteristic hook to use | ||
| * | ||
| * @return This instance | ||
| */ | ||
| public AddCharacteristicOnDamageHandler register(int effectId, AlterCharacteristicHook hook) { | ||
| hooksMapping.put(effectId, hook); | ||
|
|
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| return this; | ||
| } | ||
|
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| /** | ||
| * Register an handled characteristic | ||
| * | ||
| * @param effectId Handled effect id. This is the first parameter of the spell effect | ||
| * @param characteristic The mapped characteristic | ||
| * | ||
| * @return This instance | ||
| */ | ||
| public AddCharacteristicOnDamageHandler register(int effectId, Characteristic characteristic) { | ||
| return register(effectId, AlterCharacteristicHook.add(fight, characteristic)); | ||
| } | ||
|
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| @Override | ||
| public void onDirectDamageApplied(Buff buff, ActiveFighter caster, @Positive int damage) { | ||
| final PassiveFighter target = buff.target(); | ||
| final int boostEffectId = buff.effect().min(); | ||
| final AlterCharacteristicHook hook = hooksMapping.get(boostEffectId); | ||
|
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| if (hook == null) { | ||
| throw new IllegalArgumentException("Unsupported effect " + boostEffectId + " for punishment effect"); | ||
| } | ||
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| final int maximalValue = buff.effect().max() - currentBoostValue(buff, caster); | ||
|
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| if (maximalValue <= 0) { | ||
| return; | ||
| } | ||
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| target.buffs().add(new Buff( | ||
| BuffEffect.withCustomEffectAndDuration(buff.effect(), boostEffectId, Math.min(maximalValue, damage), buff.effect().special()), | ||
| buff.action(), | ||
| caster, | ||
| target, | ||
| hook | ||
| )); | ||
| } | ||
|
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| private @NonNegative int currentBoostValue(Buff buff, ActiveFighter caster) { | ||
| // Add 1 to duration in case of self damage | ||
| final int expectedEffectDuration = buff.effect().special() + (caster.equals(buff.target()) ? 1 : 0); | ||
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| int boost = 0; | ||
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| for (Buff activeBuff : buff.target().buffs()) { | ||
| if (activeBuff.effect().effect() == buff.effect().min() | ||
| && activeBuff.remainingTurns() == expectedEffectDuration | ||
| && activeBuff.action().equals(buff.action()) | ||
| ) { | ||
| boost += activeBuff.effect().min(); | ||
| } | ||
| } | ||
|
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||
| return boost; | ||
| } | ||
| } |
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