[BBD] Implemented Assist ability and a card using it (Charging Binox).

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

@@ -0,0 +1,158 @@
+/*
+ * Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.abilities.keyword;
+
+import mage.Mana;
+import mage.abilities.Ability;
+import mage.abilities.SpecialAction;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
+import mage.abilities.costs.mana.AlternateManaPaymentAbility;
+import mage.abilities.costs.mana.GenericManaCost;
+import mage.abilities.costs.mana.ManaCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.constants.AbilityType;
+import mage.constants.ManaType;
+import mage.constants.Outcome;
+import mage.constants.TargetController;
+import mage.constants.Zone;
+import mage.filter.FilterPlayer;
+import mage.filter.predicate.other.PlayerPredicate;
+import mage.game.Game;
+import mage.players.ManaPool;
+import mage.players.Player;
+import mage.target.Target;
+import mage.target.TargetPlayer;
+
+/*
+ * @author emerald000
+ */
+public class AssistAbility extends SimpleStaticAbility implements AlternateManaPaymentAbility {
+
+    private static final FilterPlayer filter = new FilterPlayer("another player");
+    static {
+        filter.add(new PlayerPredicate(TargetController.NOT_YOU));
+    }
+
+    public AssistAbility() {
+        super(Zone.STACK, null);
+        this.setRuleAtTheTop(true);
+    }
+
+    public AssistAbility(final AssistAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public AssistAbility copy() {
+        return new AssistAbility(this);
+    }
+
+    @Override
+    public void addSpecialAction(Ability source, Game game, ManaCost unpaid) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller != null
+                && source.getAbilityType() == AbilityType.SPELL
+                && unpaid.getMana().getGeneric() >= 1
+                && game.getState().getValue(source.getSourceId().toString() + game.getState().getZoneChangeCounter(source.getSourceId())) == null) {
+            SpecialAction specialAction = new AssistSpecialAction(unpaid);
+            specialAction.setControllerId(source.getControllerId());
+            specialAction.setSourceId(source.getSourceId());
+            Target target = new TargetPlayer(1, 1, true, filter);
+            specialAction.addTarget(target);
+            if (specialAction.canActivate(source.getControllerId(), game)) {
+                game.getState().getSpecialActions().add(specialAction);
+            }
+        }
+    }
+
+    @Override
+    public String getRule() {
+        return "Assist <i>(Another player can help pay the generic mana of this spell's cost.)</i>";
+    }
+}
+
+class AssistSpecialAction extends SpecialAction {
+
+    AssistSpecialAction(ManaCost unpaid) {
+        super(Zone.ALL, true);
+        setRuleVisible(false);
+        this.addEffect(new AssistEffect(unpaid));
+    }
+
+    AssistSpecialAction(final AssistSpecialAction ability) {
+        super(ability);
+    }
+
+    @Override
+    public AssistSpecialAction copy() {
+        return new AssistSpecialAction(this);
+    }
+}
+
+class AssistEffect extends OneShotEffect {
+
+    private final ManaCost unpaid;
+
+    AssistEffect(ManaCost unpaid) {
+        super(Outcome.Benefit);
+        this.unpaid = unpaid;
+        this.staticText = "Assist <i>(Another player can help pay the generic mana of this spell's cost.)</i>";
+    }
+
+    AssistEffect(final AssistEffect effect) {
+        super(effect);
+        this.unpaid = effect.unpaid;
+    }
+
+    @Override
+    public AssistEffect copy() {
+        return new AssistEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        Player targetPlayer = game.getPlayer(this.getTargetPointer().getFirst(game, source));
+        if (controller != null && targetPlayer != null) {
+            int amountToPay = targetPlayer.announceXMana(0, unpaid.getMana().getGeneric(), "How much mana to pay?", game, source);
+            if (amountToPay > 0) {
+                Cost cost = new GenericManaCost(amountToPay);
+                if (cost.pay(source, game, source.getSourceId(), targetPlayer.getId(), false)) {
+                    ManaPool manaPool = controller.getManaPool();
+                    manaPool.addMana(Mana.ColorlessMana(amountToPay), game, source);
+                    manaPool.unlockManaType(ManaType.COLORLESS);
+                    game.informPlayers(targetPlayer.getLogName() + " paid " + amountToPay + " mana.");
+                    game.getState().setValue(source.getSourceId().toString() + game.getState().getZoneChangeCounter(source.getSourceId()), true);
+                }
+            }
+            return true;
+        }
+        return false;
+    }
+}