Added Snow Mana Cost

Mage/src/mage/abilities/costs/mana/ManaCostsImpl.java

@@ -231,6 +231,14 @@ public class ManaCostsImpl<T extends ManaCost> extends ArrayList<T> implements M
             }
         }
         
+        
+        for (ManaCost cost : this) {
+            if (!cost.isPaid() && cost instanceof SnowManaCost) {
+                cost.assignPayment(game, ability, pool);
+            }
+        }
+
+
         for (ManaCost cost : this) {
             if (!cost.isPaid() && cost instanceof GenericManaCost) {
                 cost.assignPayment(game, ability, pool);
@@ -284,7 +292,11 @@ public class ManaCostsImpl<T extends ManaCost> extends ArrayList<T> implements M
                             //TODO: handle multiple {X} and/or {Y} symbols
                         }
                     } else {
-                        if (Character.isDigit(symbol.charAt(0))) {
+                        if(symbol.equals("snow"))
+                        {
+                            this.add((T) new SnowManaCost());
+                        }
+                        else if (Character.isDigit(symbol.charAt(0))) {
                             this.add((T) new MonoHybridManaCost(ColoredManaSymbol.lookup(symbol.charAt(2))));
                         } else if (symbol.contains("P")) {
                             this.add((T) new PhyrexianManaCost(ColoredManaSymbol.lookup(symbol.charAt(0))));

Mage/src/mage/abilities/costs/mana/SnowManaCost.java

@@ -0,0 +1,95 @@
+/*
+* 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
+* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+* 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.costs.mana;
+
+import mage.Mana;
+import mage.abilities.Ability;
+import mage.constants.ColoredManaSymbol;
+import mage.filter.FilterObject;
+import mage.filter.predicate.mageobject.SupertypePredicate;
+import mage.game.Game;
+import mage.players.ManaPool;
+
+public class SnowManaCost extends ManaCostImpl {
+
+    private static final FilterObject filter = new FilterObject("Snow object");
+    static{
+        filter.add(new SupertypePredicate("Snow"));
+    }
+
+    public SnowManaCost() {
+        this.cost = Mana.ColorlessMana(1);
+        this.options.addMana(Mana.ColorlessMana(1));
+        this.setSourceFilter(filter);
+    }
+
+    public SnowManaCost(SnowManaCost manaCost) {
+        super(manaCost);
+    }
+
+    @Override
+    public int convertedManaCost() {
+        return 1;
+    }
+
+    @Override
+    public void assignPayment(Game game, Ability ability, ManaPool pool) {
+        this.assignColorless(ability, game, pool, 1);
+    }
+    
+    @Override
+    public boolean isPaid() {
+        return paid | payment.getColorless() == 1;
+    }
+
+    @Override
+    public String getText() {
+        return "{S}";
+    }
+
+    @Override
+    public SnowManaCost getUnpaid() {
+        return this;
+    }
+
+    @Override
+    public boolean testPay(Mana testMana) {
+        return testMana.count() > 0;
+    }
+
+    @Override
+    public SnowManaCost copy() {
+        return new SnowManaCost(this);
+    }
+    @Override
+    public boolean containsColor(ColoredManaSymbol coloredManaSymbol) {
+        return false;
+    }
+
+}