make batchs for milling cards (per player, all)

Rework and test the couple of existing cards triggering on mill.

Mage/src/main/java/mage/abilities/common/OneOrMoreMilledTriggeredAbility.java

@@ -0,0 +1,54 @@
+
+package mage.abilities.common;
+
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.dynamicvalue.common.SavedMilledValue;
+import mage.abilities.effects.Effect;
+import mage.constants.Zone;
+import mage.filter.FilterCard;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.MilledBatchAllEvent;
+
+/**
+ * @author Susucr
+ */
+public class OneOrMoreMilledTriggeredAbility extends TriggeredAbilityImpl {
+
+    private final FilterCard filter;
+
+    public OneOrMoreMilledTriggeredAbility(FilterCard filter, Effect effect) {
+        this(filter, effect, false);
+    }
+
+    public OneOrMoreMilledTriggeredAbility(FilterCard filter, Effect effect, boolean optional) {
+        super(Zone.BATTLEFIELD, effect, optional);
+        this.setTriggerPhrase("Whenever one or more " + filter.getMessage() + " are milled, ");
+        this.filter = filter;
+    }
+
+    private OneOrMoreMilledTriggeredAbility(final OneOrMoreMilledTriggeredAbility ability) {
+        super(ability);
+        this.filter = ability.filter;
+    }
+
+    @Override
+    public OneOrMoreMilledTriggeredAbility copy() {
+        return new OneOrMoreMilledTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.MILLED_CARDS_BATCH_FOR_ALL;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        int count = ((MilledBatchAllEvent) event).getCards().count(filter, getControllerId(), this, game);
+        if (count <= 0) {
+            return false;
+        }
+        getEffects().setValue(SavedMilledValue.VALUE_KEY, count);
+        return true;
+    }
+}