* Dragon Whelp - Made the activation handling more reusable friendly and object sensitive (zone change counter).

Mage/src/main/java/mage/abilities/ActivationInfo.java

@@ -0,0 +1,77 @@
+/*
+ *  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.abilities;
+
+import java.util.UUID;
+import mage.game.Game;
+
+/**
+ * The ActivationInfo class holds the information how often an ability of an
+ * object was activated during a turn. It handles the check, if the object is
+ * still the same, so for example if a permanent left battlefield and returns,
+ * the counting of activations happens for each object.
+ *
+ * @author LevelX2
+ */
+public class ActivationInfo {
+
+    protected int turnNum;
+    protected int activationCounter;
+
+    public static ActivationInfo getInstance(Game game, UUID sourceId) {
+        return ActivationInfo.getInstance(game, sourceId, game.getState().getZoneChangeCounter(sourceId));
+    }
+
+    public static ActivationInfo getInstance(Game game, UUID sourceId, int zoneChangeCounter) {
+        String key = "ActivationInfo" + sourceId.toString() + zoneChangeCounter;
+        ActivationInfo activationInfo = (ActivationInfo) game.getState().getValue(key);
+        if (activationInfo == null) {
+            activationInfo = new ActivationInfo(game);
+            game.getState().setValue(key, activationInfo);
+        }
+        return activationInfo;
+    }
+
+    protected ActivationInfo(Game game) {
+        this.turnNum = game.getTurnNum();
+        this.activationCounter = 0;
+    }
+
+    public void addActivation(Game game) {
+        if (game.getTurnNum() != turnNum) {
+            activationCounter = 1;
+            turnNum = game.getTurnNum();
+        } else {
+            activationCounter++;
+        }
+    }
+
+    public int getActivationCounter() {
+        return activationCounter;
+    }
+}