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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) 2017-2021 Vincent Quatrevieux |
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*/ |
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package fr.quatrevieux.araknemu.game.fight.ai.proxy; |
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import fr.quatrevieux.araknemu.game.fight.ai.AI; |
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import fr.quatrevieux.araknemu.game.fight.fighter.ActiveFighter; |
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import fr.quatrevieux.araknemu.game.fight.fighter.FighterData; |
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import fr.quatrevieux.araknemu.game.fight.map.BattlefieldMap; |
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import fr.quatrevieux.araknemu.game.fight.map.FightCell; |
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import fr.quatrevieux.araknemu.game.fight.turn.Turn; |
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import org.checkerframework.checker.index.qual.NonNegative; |
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import java.util.Map; |
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import java.util.Optional; |
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import java.util.WeakHashMap; |
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import java.util.stream.Stream; |
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/** |
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* Proxy for AI to allow performing modification without change the real fight |
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* |
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* Note: this object is immutable : any change will result to a creation of a new instance |
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*/ |
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public final class ProxyAI implements AI<ActiveFighter> { |
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private final AI<?> ai; |
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private ProxyBattlefield map; |
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private ProxyActiveFighter fighter; |
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private ProxyTurn turn; |
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private final Map<FighterData, FighterData> fighters = new WeakHashMap<>(); |
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public ProxyAI(AI<?> ai) { |
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this.ai = ai; |
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this.fighter = new ProxyActiveFighter(ai.fighter()); |
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this.map = new ProxyBattlefield(ai.map()); |
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this.turn = new ProxyTurn(ai, this.fighter); |
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} |
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private ProxyAI(ProxyAI other) { |
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this.ai = other.ai; |
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this.map = other.map; |
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this.fighter = other.fighter; |
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this.turn = other.turn; |
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} |
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@Override |
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public void start(Turn turn) { |
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throw new UnsupportedOperationException("This is a proxy AI"); |
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} |
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@Override |
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public ActiveFighter fighter() { |
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return fighter; |
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} |
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@Override |
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public BattlefieldMap map() { |
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return map; |
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} |
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@Override |
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public Turn turn() { |
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return turn; |
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} |
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@Override |
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public Stream<? extends FighterData> fighters() { |
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return ai.fighters().map(this::getProxyFighter); |
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} |
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@Override |
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public Optional<? extends FighterData> enemy() { |
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return ai.enemy().map(this::getProxyFighter); |
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} |
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/** |
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* Change the current cell of the handled fighter |
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* |
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* @param cellId The target cell id |
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* |
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* @return The new AI instance with the updated position |
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* |
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* @see fr.quatrevieux.araknemu.game.fight.ai.util.AIHelper#withPosition(FightCell) |
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*/ |
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public ProxyAI withPosition(@NonNegative int cellId) { |
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final ProxyAI newAi = new ProxyAI(this); |
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newAi.map = newAi.map.modify(modifier -> { |
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newAi.setCurrentFighter(newAi.fighter.withPosition(modifier.get(cellId))); |
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modifier.free(fighter().cell().id()).setFighter(cellId, newAi.fighter); |
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ai.fighters().filter(other -> other.id() != this.fighter.id()).forEach(other -> { |
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final FighterData proxyFighter = new ProxyPassiveFighter(other, newAi); |
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newAi.fighters.put(other, proxyFighter); |
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modifier.setFighter(other.cell().id(), proxyFighter); |
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}); |
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}); |
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return newAi; |
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} |
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/** |
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* Get or create the proxy fighter wrapper for a given fighter |
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* |
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* @param fighter The real fighter |
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* |
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* @return The proxy fighter |
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*/ |
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private FighterData getProxyFighter(FighterData fighter) { |
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if (fighter.id() == this.fighter.id()) { |
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return this.fighter; |
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} |
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return fighters.computeIfAbsent(fighter, f -> new ProxyPassiveFighter(f, this)); |
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} |
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/** |
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* Redefine the current fighter instance |
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* This method will also update all related objects |
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* |
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* @param fighter New instance to use |
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*/ |
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private void setCurrentFighter(ProxyActiveFighter fighter) { |
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this.fighter = fighter; |
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this.turn = new ProxyTurn(ai, fighter); |
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} |
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} |
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Arakne /
Araknemu
