From dee961c6037c6e91f4b451cf5bb0b9842e6ddb37 Mon Sep 17 00:00:00 2001
From: Hans Mackowiak <hanmac@gmx.de>
Date: Thu, 4 Feb 2021 14:33:57 +0100
Subject: [PATCH] TriggerSpellAbilityCast: extra flag for spent Snow shares
 color with card

---
 .../game/trigger/TriggerSpellAbilityCast.java  | 18 ++++++++++++++++++
 .../cardsfolder/upcoming/boreal_outrider.txt   | 13 +++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 forge-gui/res/cardsfolder/upcoming/boreal_outrider.txt

diff --git a/forge-game/src/main/java/forge/game/trigger/TriggerSpellAbilityCast.java b/forge-game/src/main/java/forge/game/trigger/TriggerSpellAbilityCast.java
index 067ed6ee530..d129121c30d 100644
--- a/forge-game/src/main/java/forge/game/trigger/TriggerSpellAbilityCast.java
+++ b/forge-game/src/main/java/forge/game/trigger/TriggerSpellAbilityCast.java
@@ -23,6 +23,7 @@ import java.util.Set;
 
 import com.google.common.collect.Sets;
 
+import forge.card.ColorSet;
 import forge.game.Game;
 import forge.game.GameEntity;
 import forge.game.GameObject;
@@ -32,6 +33,7 @@ import forge.game.card.CardCollection;
 import forge.game.card.CardLists;
 import forge.game.card.CardUtil;
 import forge.game.cost.Cost;
+import forge.game.mana.Mana;
 import forge.game.player.Player;
 import forge.game.spellability.SpellAbility;
 import forge.game.spellability.SpellAbilityStackInstance;
@@ -261,6 +263,22 @@ public class TriggerSpellAbilityCast extends Trigger {
                 return false;
             }
         }
+
+        if (hasParam("SnowSpentForCardsColor")) {
+            boolean found = false;
+            for (Mana m : spellAbility.getPayingMana()) {
+                if (!m.isSnow()) {
+                    continue;
+                }
+                if (cast.determineColor().sharesColorWith(ColorSet.fromMask(m.getColor()))) {
+                    found = true;
+                    break;
+                }
+            }
+            if (!found) {
+                return false;
+            }
+        }
         return true;
     }
 
diff --git a/forge-gui/res/cardsfolder/upcoming/boreal_outrider.txt b/forge-gui/res/cardsfolder/upcoming/boreal_outrider.txt
new file mode 100644
index 00000000000..a408ffc6f90
--- /dev/null
+++ b/forge-gui/res/cardsfolder/upcoming/boreal_outrider.txt
@@ -0,0 +1,13 @@
+Name:Boreal Outrider
+ManaCost:2 G
+Types:Snow Creature Elf Warrior
+PT:3/2
+T:Mode$ SpellCast | ValidCard$ Creature | ValidActivatingPlayer$ You | Execute$ TrigEffect | TriggerZones$ Battlefield | SnowSpentForCardsColor$ True | TriggerDescription$ Whenever you cast a creature spell, if {S} of any of that spell’s colors was spent to cast it, that creature enters the battlefield with an additional +1/+1 counter on it. ({S} is mana from a snow source.)
+SVar:TrigEffect:DB$ Effect | RememberObjects$ TriggeredCard | ReplacementEffects$ ETBCreat | SVars$ DBPutP1P1,ToBattlefield,DBExile | References$ ETBCreat,DBPutP1P1,ToBattlefield,DBExile
+SVar:ETBCreat:Event$ Moved | ValidCard$ Card.IsRemembered | Destination$ Battlefield | ReplaceWith$ DBPutP1P1 | Description$ That creature enters the battlefield with an additional +1/+1 counter on it.
+SVar:DBPutP1P1:DB$ PutCounter | Defined$ ReplacedCard | CounterType$ P1P1 | ETB$ True | CounterNum$ 1 | SubAbility$ ToBattlefield
+SVar:ToBattlefield:DB$ InternalEtbReplacement | SubAbility$ DBExile
+SVar:DBExile:DB$ ChangeZone | Defined$ Self | Origin$ Command | Destination$ Exile
+DeckHints:Type$Snow
+DeckHas:Ability$Counters
+Oracle:Whenever you cast a creature spell, if {S} of any of that spell’s colors was spent to cast it, that creature enters the battlefield with an additional +1/+1 counter on it. ({S} is mana from a snow source.)