Package mage.watchers.common

Source Code of mage.watchers.common.ProwlWatcher

/*
*  Copyright 2011 BetaSteward_at_googlemail.com. All rights reserved.
*
*  Redistribution and use in source and binary forms, with or without modification, are
*  permitted provided that the following conditions are met:
*
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*        conditions and the following disclaimer.
*
*     2. Redistributions in binary form must reproduce the above copyright notice, this list
*        of conditions and the following disclaimer in the documentation and/or other materials
*        provided with the distribution.
*
*  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
*  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
*  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
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package mage.watchers.common;

import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.UUID;
import mage.abilities.keyword.ChangelingAbility;
import mage.constants.WatcherScope;
import mage.game.Game;
import mage.game.events.DamagedPlayerEvent;
import mage.game.events.GameEvent;
import mage.game.events.GameEvent.EventType;
import mage.game.permanent.Permanent;
import mage.watchers.Watcher;

/**
* Watcher stores with which creature subtypes a player made combat damage to
* other players during a turn.
*
* @author LevelX
*/
public class ProwlWatcher extends Watcher {

    private final Map<UUID, Set<String>> damagingSubtypes = new HashMap<>();
    private final Set<UUID> allSubtypes = new HashSet<>();

    public ProwlWatcher() {
        super("Prowl", WatcherScope.GAME);
    }

    public ProwlWatcher(final ProwlWatcher watcher) {
        super(watcher);
        for (Entry<UUID, Set<String>> entry : watcher.damagingSubtypes.entrySet()) {
            damagingSubtypes.put(entry.getKey(), entry.getValue());
        }
    }

    @Override
    public ProwlWatcher copy() {
        return new ProwlWatcher(this);
    }

    @Override
    public void watch(GameEvent event, Game game) {
        if (event.getType() == EventType.DAMAGED_PLAYER) {
            DamagedPlayerEvent dEvent = (DamagedPlayerEvent) event;
            if (dEvent.isCombatDamage()) {
                Permanent creature = game.getPermanent(dEvent.getSourceId());
                if (creature != null && !allSubtypes.contains(creature.getControllerId())) {
                    if (creature.getAbilities().containsKey(ChangelingAbility.getInstance().getId())) {
                        allSubtypes.add(creature.getControllerId());
                    } else {
                        Set<String> subtypes = damagingSubtypes.get(creature.getControllerId());
                        if (subtypes == null) {
                            subtypes = new LinkedHashSet<>();
                        }
                        subtypes.addAll(creature.getSubtype());
                        damagingSubtypes.put(creature.getControllerId(), subtypes);
                    }
                }
            }
        }
    }

    @Override
    public void reset() {
        super.reset();
        damagingSubtypes.clear();
        allSubtypes.clear();
    }

    public boolean hasSubtypeMadeCombatDamage(UUID playerId, String subtype) {
        if (allSubtypes.contains(playerId)) {
            return true;
        }
        Set<String> subtypes = damagingSubtypes.get(playerId);
        if (subtypes != null) {
            return subtypes.contains(subtype);
        }
        return false;
    }

}
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