[J25] Implement Frontline Heroism

Mage.Sets/src/mage/cards/f/FrontlineHeroism.java

@@ -0,0 +1,146 @@
+package mage.cards.f;
+
+import mage.MageItem;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.SpellCastControllerTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.filter.FilterPermanent;
+import mage.filter.FilterSpell;
+import mage.filter.StaticFilters;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.mageobject.MageObjectReferencePredicate;
+import mage.filter.predicate.other.HasOnlySingleTargetPermanentPredicate;
+import mage.filter.predicate.permanent.PermanentIdPredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.permanent.token.AkroanSoldierToken;
+import mage.game.permanent.token.Token;
+import mage.game.stack.Spell;
+import mage.game.stack.StackObject;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+import mage.util.RandomUtil;
+import mage.util.functions.StackObjectCopyApplier;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * @author TheElk801
+ */
+public final class FrontlineHeroism extends CardImpl {
+
+    private static final FilterSpell filter
+            = new FilterSpell("a spell that targets only a single creature you control");
+
+    static {
+        filter.add(new HasOnlySingleTargetPermanentPredicate(StaticFilters.FILTER_CONTROLLED_CREATURE));
+    }
+
+    public FrontlineHeroism(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{R}");
+
+        // When Frontline Heroism enters, create a 1/1 red Soldier creature token with haste.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new CreateTokenEffect(new AkroanSoldierToken())));
+
+        // Whenever you cast a spell that targets only a single creature you control, create a 1/1 red Soldier creature token with haste, then copy that spell. The copy targets that token.
+        this.addAbility(new SpellCastControllerTriggeredAbility(new FrontlineHeroismEffect(), filter, false));
+    }
+
+    private FrontlineHeroism(final FrontlineHeroism card) {
+        super(card);
+    }
+
+    @Override
+    public FrontlineHeroism copy() {
+        return new FrontlineHeroism(this);
+    }
+}
+
+class FrontlineHeroismEffect extends OneShotEffect {
+
+    private static final class FrontlineHeroismApplier implements StackObjectCopyApplier {
+
+        private final Iterator<MageObjectReferencePredicate> predicate;
+
+        FrontlineHeroismApplier(Permanent permanent, Game game) {
+            this.predicate = Arrays.asList(new MageObjectReferencePredicate(permanent, game)).iterator();
+        }
+
+        @Override
+        public void modifySpell(StackObject stackObject, Game game) {
+        }
+
+        @Override
+        public MageObjectReferencePredicate getNextNewTargetType() {
+            if (predicate.hasNext()) {
+                return predicate.next();
+            }
+            return null;
+        }
+    }
+
+    FrontlineHeroismEffect() {
+        super(Outcome.Benefit);
+        staticText = "create a 1/1 red Soldier creature token with haste, " +
+                "then copy that spell. The copy targets that token";
+    }
+
+    private FrontlineHeroismEffect(final FrontlineHeroismEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public FrontlineHeroismEffect copy() {
+        return new FrontlineHeroismEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        Spell spell = (Spell) getValue("spellCast");
+        if (player == null || spell == null) {
+            return false;
+        }
+        Token token = new AkroanSoldierToken();
+        token.putOntoBattlefield(1, game, source);
+        Set<Permanent> permanents = token
+                .getLastAddedTokenIds()
+                .stream()
+                .map(game::getPermanent)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toSet());
+        Permanent permanent;
+        switch (permanents.size()) {
+            case 0:
+                return false;
+            case 1:
+                permanent = RandomUtil.randomFromCollection(permanents);
+                break;
+            default:
+                FilterPermanent filter = new FilterPermanent("token to target with the copied spell");
+                filter.add(Predicates.or(
+                        permanents
+                                .stream()
+                                .map(MageItem::getId)
+                                .map(PermanentIdPredicate::new)
+                                .collect(Collectors.toSet())
+                ));
+                TargetPermanent target = new TargetPermanent(filter);
+                target.withNotTarget(true);
+                player.choose(outcome, target, source, game);
+                permanent = game.getPermanent(target.getFirstTarget());
+        }
+        spell.createCopyOnStack(
+                game, source, source.getControllerId(), false,
+                1, new FrontlineHeroismApplier(permanent, game)
+        );
+        return true;
+    }
+}

Mage.Sets/src/mage/sets/FoundationsJumpstart.java

@@ -279,6 +279,7 @@ public final class FoundationsJumpstart extends ExpansionSet {
         cards.add(new SetCardInfo("Forgotten Cave", 766, Rarity.UNCOMMON, mage.cards.f.ForgottenCave.class));
         cards.add(new SetCardInfo("Foul Play", 442, Rarity.UNCOMMON, mage.cards.f.FoulPlay.class));
         cards.add(new SetCardInfo("Fretwork Colony", 443, Rarity.UNCOMMON, mage.cards.f.FretworkColony.class));
+        cards.add(new SetCardInfo("Frontline Heroism", 15, Rarity.RARE, mage.cards.f.FrontlineHeroism.class));
         cards.add(new SetCardInfo("Frost Trickster", 313, Rarity.COMMON, mage.cards.f.FrostTrickster.class));
         cards.add(new SetCardInfo("Fumulus, the Infestation", 42, Rarity.RARE, mage.cards.f.FumulusTheInfestation.class));
         cards.add(new SetCardInfo("Fungal Plots", 658, Rarity.UNCOMMON, mage.cards.f.FungalPlots.class));