[WHO] Implement Impending Flux

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

@@ -0,0 +1,43 @@
+package mage.abilities.dynamicvalue.common;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.abilities.hint.Hint;
+import mage.abilities.hint.ValueHint;
+import mage.game.Game;
+import mage.watchers.common.SpellsCastNotFromHandWatcher;
+
+/**
+ * @author TheElk801
+ */
+public enum SpellsCastNotFromHandValue implements DynamicValue {
+    instance;
+    private static final Hint hint = new ValueHint(
+            "Spells you've cast this turn from anywhere other than your hand", instance
+    );
+
+    public static Hint getHint() {
+        return hint;
+    }
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return SpellsCastNotFromHandWatcher.getCount(sourceAbility.getControllerId(), game);
+    }
+
+    @Override
+    public SpellsCastNotFromHandValue copy() {
+        return this;
+    }
+
+    @Override
+    public String getMessage() {
+        return "spell you've cast this turn from anywhere other than your hand";
+    }
+
+    @Override
+    public String toString() {
+        return "1";
+    }
+}

Mage/src/main/java/mage/watchers/common/SpellsCastNotFromHandWatcher.java

@@ -0,0 +1,50 @@
+package mage.watchers.common;
+
+import mage.constants.WatcherScope;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.stack.Spell;
+import mage.util.CardUtil;
+import mage.watchers.Watcher;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public class SpellsCastNotFromHandWatcher extends Watcher {
+
+    private final Map<UUID, Integer> map = new HashMap<>();
+
+    public SpellsCastNotFromHandWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() != GameEvent.EventType.SPELL_CAST) {
+            return;
+        }
+        Spell spell = game.getSpell(event.getSourceId());
+        if (spell != null && spell.getFromZone() != Zone.HAND) {
+            map.compute(event.getPlayerId(), CardUtil::setOrIncrementValue);
+        }
+    }
+
+    @Override
+    public void reset() {
+        super.reset();
+        map.clear();
+    }
+
+    public static int getCount(UUID playerId, Game game) {
+        return game
+                .getState()
+                .getWatcher(SpellsCastNotFromHandWatcher.class)
+                .map
+                .getOrDefault(playerId, 0);
+    }
+}