[NEO] Implemented The Fall of Lord Konda / Fragment of Konda

Mage/src/main/java/mage/abilities/effects/common/continuous/GainControlAllOwnedEffect.java

@@ -0,0 +1,66 @@
+package mage.abilities.effects.common.continuous;
+
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.constants.Duration;
+import mage.constants.Layer;
+import mage.constants.Outcome;
+import mage.constants.SubLayer;
+import mage.filter.FilterPermanent;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.Iterator;
+
+/**
+ * @author TheElk801
+ */
+public class GainControlAllOwnedEffect extends ContinuousEffectImpl {
+
+    private final FilterPermanent filter;
+
+    public GainControlAllOwnedEffect(FilterPermanent filter) {
+        super(Duration.EndOfGame, Layer.ControlChangingEffects_2, SubLayer.NA, Outcome.GainControl);
+        this.filter = filter;
+        this.staticText = "each player gains control of all " + filter + " they own";
+    }
+
+    public GainControlAllOwnedEffect(final GainControlAllOwnedEffect effect) {
+        super(effect);
+        this.filter = effect.filter;
+    }
+
+    @Override
+    public GainControlAllOwnedEffect copy() {
+        return new GainControlAllOwnedEffect(this);
+    }
+
+    @Override
+    public void init(Ability source, Game game) {
+        super.init(source, game);
+        for (Permanent permanent : game.getBattlefield().getActivePermanents(
+                filter, source.getControllerId(), source.getSourceId(), game
+        )) {
+            affectedObjectList.add(new MageObjectReference(permanent, game));
+        }
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        for (Iterator<MageObjectReference> it = affectedObjectList.iterator(); it.hasNext(); ) {
+            Permanent permanent = it.next().getPermanent(game);
+            if (permanent == null) {
+                it.remove();
+                continue;
+            }
+            if (!permanent.isControlledBy(permanent.getOwnerId())) {
+                permanent.changeControllerId(permanent.getOwnerId(), game, source);
+            }
+        }
+        if (affectedObjectList.isEmpty()) {
+            this.discard();
+        }
+        return true;
+    }
+}