- Fixed Myr Battlesphere #4522

Mage/src/main/java/mage/watchers/common/CreatureAttackedWhichPlayerWatcher.java

@@ -0,0 +1,84 @@
+/*
+ *  Copyright 2010 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:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        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
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.watchers.common;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.UUID;
+import mage.constants.WatcherScope;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.watchers.Watcher;
+
+/**
+ * @author jeffwadsworth
+ *
+ *    Return the last player that was attacked by specified creature this turn
+ */
+public class CreatureAttackedWhichPlayerWatcher extends Watcher {
+
+    private final Map<UUID, UUID> getPlayerAttackedThisTurnByCreature = new HashMap<>();
+
+    public CreatureAttackedWhichPlayerWatcher() {
+        super(CreatureAttackedWhichPlayerWatcher.class.getSimpleName(), WatcherScope.GAME);
+    }
+
+    public CreatureAttackedWhichPlayerWatcher(final CreatureAttackedWhichPlayerWatcher watcher) {
+        super(watcher);
+        for (Entry<UUID, UUID> entry : watcher.getPlayerAttackedThisTurnByCreature.entrySet()) {
+            getPlayerAttackedThisTurnByCreature.put(entry.getKey(), entry.getValue());
+        }
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() == GameEvent.EventType.ATTACKER_DECLARED) {
+            UUID creatureId = event.getSourceId();
+            UUID playerId = event.getTargetId();
+            if (playerId != null
+                    && creatureId != null) {
+                getPlayerAttackedThisTurnByCreature.putIfAbsent(creatureId, playerId);
+            }
+        }
+    }
+
+    public UUID getPlayerAttackedThisTurnByCreature(UUID creatureId) {
+        return getPlayerAttackedThisTurnByCreature.getOrDefault(creatureId, null);
+    }
+
+    @Override
+    public void reset() {
+        getPlayerAttackedThisTurnByCreature.clear();
+    }
+
+    @Override
+    public CreatureAttackedWhichPlayerWatcher copy() {
+        return new CreatureAttackedWhichPlayerWatcher(this);
+    }
+}