Refactored Blocked Creature effect

Mage/src/main/java/mage/abilities/dynamicvalue/common/BlockedCreatureCount.java

@@ -0,0 +1,81 @@
+/*
+ *  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.dynamicvalue.common;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.game.Game;
+import mage.game.combat.CombatGroup;
+
+/**
+ *
+ * @author Markedagain
+ */
+public class BlockedCreatureCount implements DynamicValue {
+    private String message;
+
+    public BlockedCreatureCount() {
+        this("each creature blocking it");
+    }
+
+    public BlockedCreatureCount(String message) {
+        this.message = message;
+    }
+
+    public BlockedCreatureCount(final BlockedCreatureCount dynamicValue) {
+        super();
+        this.message = dynamicValue.message;
+    }
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+       for(CombatGroup combatGroup : game.getCombat().getGroups()) {
+            if(combatGroup.getAttackers().contains(sourceAbility.getSourceId())) {
+                 int blockers = combatGroup.getBlockers().size();
+                 return blockers > 1 ? (blockers) : 0;
+            }
+        }
+        return 0;
+    }
+
+    @Override
+    public BlockedCreatureCount copy() {
+        return new BlockedCreatureCount(this);
+    }
+
+    @Override
+    public String getMessage() {
+        return message;
+    }
+
+    @Override
+    public String toString() {
+        return "X";
+    }
+}