Implemented Echo Storm

Mage/src/main/java/mage/abilities/keyword/CommanderStormAbility.java

@@ -0,0 +1,107 @@
+package mage.abilities.keyword;
+
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.OneShotEffect;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.GameEvent.EventType;
+import mage.game.stack.Spell;
+import mage.game.stack.StackObject;
+import mage.players.Player;
+
+/**
+ *
+ * @author Plopman
+ */
+public class CommanderStormAbility extends TriggeredAbilityImpl {
+
+    public CommanderStormAbility() {
+        super(Zone.STACK, new CommanderStormEffect());
+        this.ruleAtTheTop = true;
+    }
+
+    private CommanderStormAbility(final CommanderStormAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public CommanderStormAbility copy() {
+        return new CommanderStormAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == EventType.SPELL_CAST;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (event.getSourceId().equals(getSourceId())) {
+            StackObject spell = game.getStack().getStackObject(getSourceId());
+            if (spell instanceof Spell) {
+                for (Effect effect : this.getEffects()) {
+                    effect.setValue("StormSpell", spell);
+                    effect.setValue("StormSpellRef", new MageObjectReference(spell.getId(), game));
+                }
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String getRule() {
+        return "When you cast this spell, copy it for each time you've "
+                + "cast your commander from the command zone this game. "
+                + "You may choose new targets for the copies.";
+    }
+}
+
+class CommanderStormEffect extends OneShotEffect {
+
+    public CommanderStormEffect() {
+        super(Outcome.Copy);
+    }
+
+    public CommanderStormEffect(final CommanderStormEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        MageObjectReference spellRef = (MageObjectReference) this.getValue("StormSpellRef");
+        if (spellRef == null) {
+            return false;
+        }
+        int stormCount = 0;
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        stormCount = player.getCommandersIds().stream().map(
+                (commanderId) -> (Integer) game.getState().getValue(commanderId + "_castCount")
+        ).map((castCount) -> castCount).reduce(stormCount, Integer::sum);
+        if (stormCount == 0) {
+            return true;
+        }
+        Spell spell = (Spell) this.getValue("StormSpell");
+        if (spell == null) {
+            return false;
+        }
+        game.informPlayers(spell.getLogName() + " will be copied " + stormCount + " time" + (stormCount > 1 ? "s" : ""));
+        for (int i = 0; i < stormCount; i++) {
+            spell.createCopyOnStack(game, source, source.getControllerId(), true);
+        }
+        return true;
+    }
+
+    @Override
+    public CommanderStormEffect copy() {
+        return new CommanderStormEffect(this);
+    }
+}