Improved freeze checks and canRespond/isInGame usage

Mage.Server.Plugins/Mage.Player.Human/src/mage/player/human/HumanPlayer.java

@@ -1964,7 +1964,7 @@ public class HumanPlayer extends PlayerImpl {
         }
         waitForResponse(game);
 
-        if (response.getUUID() != null && isInGame()) {
+        if (response.getUUID() != null) {
             if (abilities.containsKey(response.getUUID())) {
                 activateAbility(abilities.get(response.getUUID()), game);
             }

Mage.Server/src/main/java/mage/server/game/GameController.java

@@ -326,7 +326,7 @@ public class GameController implements GameCallback {
     private void sendInfoAboutPlayersNotJoinedYetAndTryToFixIt() {
         // runs every 5 secs untill all players join
         for (Player player : game.getPlayers().values()) {
-            if (player.isInGame() && player.isHuman()) {
+            if (player.canRespond() && player.isHuman()) {
                 Optional<User> requestedUser = getUserByPlayerId(player.getId());
                 if (requestedUser.isPresent()) {
                     User user = requestedUser.get();

Mage.Sets/src/mage/cards/c/CovetedJewel.java

@@ -123,7 +123,7 @@ class CovetedJewelControlEffect extends ContinuousEffectImpl {
     public boolean apply(Game game, Ability source) {
         Permanent permanent = game.getPermanent(source.getSourceId());
         Player newControllingPlayer = game.getPlayer(getTargetPointer().getFirst(game, source));
-        if (permanent == null || newControllingPlayer == null || !newControllingPlayer.isInGame()) {
+        if (permanent == null || newControllingPlayer == null || !newControllingPlayer.canRespond()) {
             this.discard();
             return false;
         }

Mage.Sets/src/mage/cards/c/CruelFate.java

@@ -1,14 +1,8 @@
-
 package mage.cards.c;
 
-import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.effects.OneShotEffect;
-import mage.cards.Card;
+import mage.cards.*;
-import mage.cards.CardImpl;
-import mage.cards.CardSetInfo;
-import mage.cards.Cards;
-import mage.cards.CardsImpl;
 import mage.constants.CardType;
 import mage.constants.Outcome;
 import mage.constants.Zone;
@@ -18,8 +12,9 @@ import mage.players.Player;
 import mage.target.TargetCard;
 import mage.target.common.TargetOpponent;
 
+import java.util.UUID;
+
 /**
- *
  * @author TheElk801 & L_J
  */
 public final class CruelFate extends CardImpl {
@@ -71,7 +66,7 @@ class CruelFateEffect extends OneShotEffect {
 
                 // card to put into opponent's graveyard
                 TargetCard target = new TargetCard(Zone.LIBRARY, new FilterCard("card to put into target opponent's graveyard"));
-                if (targetOpponent.isInGame()) {
+                if (targetOpponent.canRespond()) {
                     if (cards.size() > 1) {
                         controller.choose(Outcome.Detriment, cards, target, game);
                         Card card = cards.get(target.getFirstTarget(), game);

Mage.Sets/src/mage/cards/e/EyeOfTheStorm.java

@@ -137,7 +137,7 @@ class EyeOfTheStormEffect1 extends OneShotEffect {
                 }
 
                 boolean continueCasting = true;
-                while (spellController.isInGame() && continueCasting) {
+                while (spellController.canRespond() && continueCasting) {
                     continueCasting = copiedCards.size() > 1 && spellController.chooseUse(outcome, "Cast one of the copied cards without paying its mana cost?", source, game);
 
                     Card cardToCopy;

Mage.Sets/src/mage/cards/k/KarnLiberated.java

@@ -1,8 +1,5 @@
 package mage.cards.k;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.UUID;
 import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.DelayedTriggeredAbility;
@@ -26,6 +23,10 @@ import mage.target.TargetPlayer;
 import mage.target.common.TargetCardInHand;
 import mage.util.CardUtil;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
 /**
  * @author bunchOfDevs
  */
@@ -100,7 +101,7 @@ class KarnLiberatedEffect extends OneShotEffect {
             game.getState().addCard(card);
         }
         for (Player player : game.getPlayers().values()) {
-            if (player.isInGame()) { // only players alive are in the restarted game
+            if (player.canRespond()) { // only players alive are in the restarted game
                 player.getGraveyard().clear();
                 player.getHand().clear();
                 player.getLibrary().clear();

Mage.Sets/src/mage/cards/k/KindleTheCarnage.java

@@ -1,7 +1,5 @@
-
 package mage.cards.k;
 
-import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.DamageAllEffect;
@@ -15,8 +13,9 @@ import mage.filter.common.FilterCreaturePermanent;
 import mage.game.Game;
 import mage.players.Player;
 
+import java.util.UUID;
+
 /**
- *
  * @author jeffwadsworth
  */
 public final class KindleTheCarnage extends CardImpl {
@@ -62,7 +61,6 @@ class KindleTheCarnageEffect extends OneShotEffect {
             Cards hand = controller.getHand();
             while (hand != null
                     && hand.size() > 0
-                    && controller.isInGame()
                     && controller.chooseUse(Outcome.AIDontUseIt, "Discard a card randomly from your hand?", source, game)) {
                 Card discardedCard = controller.discardOne(true, source, game);
                 if (discardedCard != null) {

Mage.Sets/src/mage/cards/n/NaturalBalance.java

@@ -1,4 +1,3 @@
-
 package mage.cards.n;
 
 import mage.abilities.Ability;
@@ -24,7 +23,6 @@ import java.util.List;
 import java.util.UUID;
 
 /**
- *
  * @author Rene - bugisemail at gmail dot com
  */
 public final class NaturalBalance extends CardImpl {
@@ -100,10 +98,8 @@ public final class NaturalBalance extends CardImpl {
                     }
                 }
                 for (Player player : toShuffle) {
-                    if (player.isInGame()) {
                     player.shuffleLibrary(source, game);
                 }
-                }
                 return true;
             }
             return false;

Mage.Sets/src/mage/cards/s/ScourgeOfValkas.java

@@ -96,8 +96,7 @@ class ScourgeOfValkasDamageEffect extends OneShotEffect {
             permanent.damage(dragons, enteringDragon.getId(), game, false, true);
         } else {
             Player player = game.getPlayer(getTargetPointer().getFirst(game, source));
-            if (player != null
+            if (player != null) {
-                    && player.isInGame()) {
                 player.damage(dragons, enteringDragon.getId(), game);
             }
         }

Mage.Sets/src/mage/cards/s/SkySwallower.java

@@ -1,7 +1,5 @@
-
 package mage.cards.s;
 
-import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.Mode;
@@ -17,8 +15,9 @@ import mage.game.permanent.Permanent;
 import mage.players.Player;
 import mage.target.common.TargetOpponent;
 
+import java.util.UUID;
+
 /**
- *
  * @author ciaccona007
  */
 public final class SkySwallower extends CardImpl {
@@ -68,7 +67,7 @@ class GainControlAllPermanentsEffect extends ContinuousEffectImpl {
     @Override
     public boolean apply(Game game, Ability source) {
         Player targetPlayer = game.getPlayer(targetPointer.getFirst(game, source));
-        if (targetPlayer != null && targetPlayer.isInGame()) {
+        if (targetPlayer != null) {
             for (Permanent permanent : game.getBattlefield().getAllActivePermanents(filter, source.getControllerId(), game)) {
                 if (permanent != null && !permanent.getId().equals(source.getSourceId())) {
                     permanent.changeControllerId(targetPlayer.getId(), game);

Mage.Sets/src/mage/cards/s/SlaughterTheStrong.java

@@ -1,4 +1,3 @@
-
 package mage.cards.s;
 
 import mage.abilities.Ability;
@@ -70,7 +69,7 @@ class SlaughterTheStrongEffect extends OneShotEffect {
                 if (player != null) {
                     boolean selectionDone = false;
                     Set<UUID> selectedCreatures = new HashSet<>();
-                    while (selectionDone == false && player.isInGame()) {
+                    while (player.canRespond() && selectionDone == false) {
                         int powerSum = 0;
                         for (UUID creatureId : selectedCreatures) {
                             Permanent creature = game.getPermanent(creatureId);

Mage.Sets/src/mage/cards/u/UndyingFlames.java

@@ -1,6 +1,5 @@
 package mage.cards.u;
 
-import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.DamageTargetEffect;
@@ -15,10 +14,10 @@ import mage.game.Game;
 import mage.players.Player;
 import mage.target.common.TargetAnyTarget;
 
+import java.util.UUID;
+
 /**
- *
  * @author jeffwadsworth
- *
  */
 public final class UndyingFlames extends CardImpl {
 
@@ -60,7 +59,7 @@ class UndyingFlamesEffect extends OneShotEffect {
 
         Player controller = game.getPlayer(source.getControllerId());
         if (controller != null) {
-            while (controller.getLibrary().hasCards() && controller.isInGame()) {
+            while (controller.canRespond() && controller.getLibrary().hasCards()) {
                 Card card = controller.getLibrary().getFromTop(game);
                 if (card != null) {
                     controller.moveCards(card, Zone.EXILED, source, game);

Mage/src/main/java/mage/abilities/effects/common/DamageTargetEffect.java

@@ -122,8 +122,7 @@ public class DamageTargetEffect extends OneShotEffect {
                         permanent.damage(amount.calculate(game, source, this), source.getSourceId(), game, false, preventable);
                     }
                     Player player = game.getPlayer(targetId);
-                    if (player != null
+                    if (player != null) {
-                            && player.isInGame()) {
                         player.damage(amount.calculate(game, source, this), source.getSourceId(), game, false, preventable);
                     }
                 }
@@ -136,8 +135,7 @@ public class DamageTargetEffect extends OneShotEffect {
                 permanent.damage(amount.calculate(game, source, this), source.getSourceId(), game, false, preventable);
             } else {
                 Player player = game.getPlayer(targetId);
-                if (player != null
+                if (player != null) {
-                        && player.isInGame()) {
                     player.damage(amount.calculate(game, source, this), source.getSourceId(), game, false, preventable);
                 }
             }

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

@@ -1,6 +1,5 @@
 package mage.abilities.effects.common.continuous;
 
-import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.ActivatedAbility;
 import mage.abilities.Mode;
@@ -16,8 +15,9 @@ import mage.players.Player;
 import mage.target.Target;
 import mage.util.CardUtil;
 
+import java.util.UUID;
+
 /**
- *
  * @author BetaSteward_at_googlemail.com
  */
 public class GainControlTargetEffect extends ContinuousEffectImpl {
@@ -31,7 +31,6 @@ public class GainControlTargetEffect extends ContinuousEffectImpl {
     }
 
     /**
-     *
      * @param duration
      * @param fixedControl Controlling player is fixed even if the controller of
      *                     the ability changes later
@@ -41,7 +40,6 @@ public class GainControlTargetEffect extends ContinuousEffectImpl {
     }
 
     /**
-     *
      * @param duration
      * @param controllingPlayerId Player that controls the target creature
      */
@@ -112,8 +110,7 @@ public class GainControlTargetEffect extends ContinuousEffectImpl {
                 }
             }
             // no valid target exists and the controller is no longer in the game, effect can be discarded
-            if (!oneTargetStillExists
+            if (!oneTargetStillExists || !controller.isInGame()) {
-                    || !controller.isInGame()) {
                 discard();
             }
             firstControlChange = false;

Mage/src/main/java/mage/game/GameImpl.java

@@ -982,7 +982,7 @@ public abstract class GameImpl implements Game, Serializable {
             targetPlayer.setTargetName("starting player");
             if (choosingPlayerId != null) {
                 choosingPlayer = this.getPlayer(choosingPlayerId);
-                if (choosingPlayer != null && !choosingPlayer.isInGame()) {
+                if (choosingPlayer != null && !choosingPlayer.canRespond()) {
                     choosingPlayer = null;
                 }
             }
@@ -1007,7 +1007,7 @@ public abstract class GameImpl implements Game, Serializable {
         if (startingPlayerId == null) {
             // choose any available player as starting player
             for (Player player : state.getPlayers().values()) {
-                if (player.isInGame()) {
+                if (player.canRespond()) {
                     startingPlayerId = player.getId();
                     break;
                 }
@@ -1161,7 +1161,7 @@ public abstract class GameImpl implements Game, Serializable {
         while (!hasEnded()) {
             playerId = players[RandomUtil.nextInt(players.length)];
             Player player = getPlayer(playerId);
-            if (player != null && player.isInGame()) {
+            if (player != null && player.canRespond()) {
                 fireInformEvent(state.getPlayer(playerId).getLogName() + " won the toss");
                 return player.getId();
             }
@@ -3281,7 +3281,7 @@ public abstract class GameImpl implements Game, Serializable {
                     gameStatesRollBack.put(getTurnNum(), state.copy());
                     executingRollback = true;
                     for (Player playerObject : getPlayers().values()) {
-                        if (playerObject.isHuman() && playerObject.isInGame()) {
+                        if (playerObject.isHuman() && playerObject.canRespond()) {
                             playerObject.resetStoredBookmark(this);
                             playerObject.abort();
                             playerObject.resetPlayerPassedActions();

Mage/src/main/java/mage/game/combat/CombatGroup.java

@@ -1,17 +1,10 @@
-
 package mage.game.combat;
 
 import mage.abilities.Ability;
 import mage.abilities.common.ControllerAssignCombatDamageToBlockersAbility;
 import mage.abilities.common.ControllerDivideCombatDamageAbility;
 import mage.abilities.common.DamageAsThoughNotBlockedAbility;
-import mage.abilities.keyword.BandingAbility;
+import mage.abilities.keyword.*;
-import mage.abilities.keyword.BandsWithOtherAbility;
-import mage.abilities.keyword.CantBlockAloneAbility;
-import mage.abilities.keyword.DeathtouchAbility;
-import mage.abilities.keyword.DoubleStrikeAbility;
-import mage.abilities.keyword.FirstStrikeAbility;
-import mage.abilities.keyword.TrampleAbility;
 import mage.constants.AsThoughEffectType;
 import mage.constants.Outcome;
 import mage.filter.StaticFilters;
@@ -27,7 +20,6 @@ import java.util.*;
 import java.util.stream.Stream;
 
 /**
- *
  * @author BetaSteward_at_googlemail.com
  */
 public class CombatGroup implements Serializable, Copyable<CombatGroup> {
@@ -409,7 +401,7 @@ public class CombatGroup implements Serializable, Copyable<CombatGroup> {
                 }
                 if (damage > 0) {
                     Player defendingPlayer = game.getPlayer(defendingPlayerId);
-                    if (defendingPlayer.isInGame()) {
+                    if (defendingPlayer != null) {
                         defendingPlayer.damage(damage, attacker.getId(), game, true, true);
                     }
                 }
@@ -466,9 +458,9 @@ public class CombatGroup implements Serializable, Copyable<CombatGroup> {
      * Damages attacking creatures by a creature that blocked several ones
      * Damages only attackers as blocker was damage in
      * {@link #singleBlockerDamage}.
-     *
+     * <p>
      * Handles abilities like "{this} an block any number of creatures.".
-     *
+     * <p>
      * Blocker damage for blockers blocking single creatures is handled in the
      * single/multi blocker methods, so this shouldn't be used anymore.
      *
@@ -492,7 +484,7 @@ public class CombatGroup implements Serializable, Copyable<CombatGroup> {
      * Damages attacking creatures by a creature that blocked several ones
      * Damages only attackers as blocker was damage in either
      * {@link #singleBlockerDamage} or {@link #multiBlockerDamage}.
-     *
+     * <p>
      * Handles abilities like "{this} an block any number of creatures.".
      *
      * @param first
@@ -552,7 +544,7 @@ public class CombatGroup implements Serializable, Copyable<CombatGroup> {
             }
         } else {
             Player defender = game.getPlayer(defenderId);
-            if (defender.isInGame()) {
+            if (defender != null) {
                 defender.damage(amount, attacker.getId(), game, true, true);
             }
         }
@@ -572,7 +564,6 @@ public class CombatGroup implements Serializable, Copyable<CombatGroup> {
     }
 
     /**
-     *
      * @param blockerId
      * @param playerId  controller of the blocking creature
      * @param game
@@ -645,7 +636,7 @@ public class CombatGroup implements Serializable, Copyable<CombatGroup> {
                     attackerPerms.add(game.getPermanent(attackerId));
                 }
                 UUID attackerId = player.chooseAttackerOrder(attackerPerms, game);
-                if (!player.isInGame()) {
+                if (attackerId == null) {
                     break;
                 }
                 attackerOrder.add(attackerId);
@@ -791,7 +782,7 @@ public class CombatGroup implements Serializable, Copyable<CombatGroup> {
     /**
      * There are effects, that set an attacker to be blocked. Therefore this
      * setter can be used.
-     *
+     * <p>
      * This method lacks a band check, use setBlocked(blocked, game) instead.
      *
      * @param blocked

Mage/src/main/java/mage/players/PlayerList.java

@@ -53,6 +53,7 @@ public class PlayerList extends CircularList<UUID> {
                     player.setReachedNextTurnAfterLeaving(true);
                 }
             }
+
             if (player.getId().equals(start)) {
                 return null;
             }
@@ -63,11 +64,15 @@ public class PlayerList extends CircularList<UUID> {
     public Player getPrevious(Game game) {
         Player player;
         UUID start = this.get();
+        if (start == null) {
+            return null;
+        }
         while (true) {
             player = game.getPlayer(super.getPrevious());
             if (player.isInGame()) {
                 break;
             }
+
             if (player.getId().equals(start)) {
                 return null;
             }