Move cost checks to use cost_mod script

Fixes #177

Author: jleclanche

fireplace/cards/blackrock/brawl.py

@@ -57,7 +57,7 @@ class BRMC_92:
 
 # Golemagg
 class BRMC_95:
-	cost = lambda self, i: i - self.controller.hero.damage
+	cost_mod = -Attr(FRIENDLY_HERO, GameTag.DAMAGE)
 
 
 # High Justice Grimstone

fireplace/cards/blackrock/collectible.py

@@ -26,7 +26,7 @@ class BRM_008:
 
 # Volcanic Lumberer
 class BRM_009:
-	cost = lambda self, i: i - len(self.game.minions_killed_this_turn)
+	cost_mod = -Attr(GAME, GameTag.NUM_MINIONS_KILLED_THIS_TURN)
 
 
 # Druid of the Flame (Firecat Form)
@@ -84,7 +84,7 @@ class BRM_024:
 
 # Volcanic Drake
 class BRM_025:
-	cost = lambda self, i: i - len(self.game.minions_killed_this_turn)
+	cost_mod = -Attr(GAME, GameTag.NUM_MINIONS_KILLED_THIS_TURN)
 
 
 # Hungry Dragon
@@ -136,7 +136,7 @@ class BRM_034:
 # Solemn Vigil
 class BRM_001:
 	play = Draw(CONTROLLER) * 2
-	cost = lambda self, i: i - len(self.game.minions_killed_this_turn)
+	cost_mod = -Attr(GAME, GameTag.NUM_MINIONS_KILLED_THIS_TURN)
 
 
 # Melt (Unused)
@@ -147,7 +147,7 @@ class BRM_001e:
 # Dragon's Breath
 class BRM_003:
 	play = Hit(TARGET, 4)
-	cost = lambda self, i: i - len(self.game.minions_killed_this_turn)
+	cost_mod = -Attr(GAME, GameTag.NUM_MINIONS_KILLED_THIS_TURN)
 
 
 # Demonwrath

fireplace/cards/classic/neutral_epic.py

@@ -8,7 +8,7 @@ class EX1_005:
 
 # Mountain Giant
 class EX1_105:
-	cost = lambda self, i: i - (len(self.controller.hand) - 1)
+	cost_mod = -Count(CONTROLLER_HAND - SELF)
 
 
 # Murloc Warleader
@@ -23,7 +23,7 @@ class EX1_564:
 
 # Sea Giant
 class EX1_586:
-	cost = lambda self, i: i - len(self.game.board)
+	cost_mod = -Count(ALL_MINIONS)
 
 
 # Blood Knight
@@ -36,7 +36,7 @@ class EX1_590:
 
 # Molten Giant
 class EX1_620:
-	cost = lambda self, i: i - self.controller.hero.damage
+	cost_mod = -Attr(FRIENDLY_HERO, GameTag.DAMAGE)
 
 
 # Captain's Parrot

fireplace/cards/gvg/neutral_epic.py

@@ -39,7 +39,7 @@ class GVG_108:
 
 # Clockwork Giant
 class GVG_121:
-	cost = lambda self, i: i - len(self.controller.opponent.hand)
+	cost_mod = -Count(OPPONENT_HAND)
 
 
 # Wee Spellstopper

fireplace/cards/tgt/neutral_epic.py

@@ -36,7 +36,7 @@ class AT_118:
 
 # Frost Giant
 class AT_120:
-	cost = lambda self, i: i - self.controller.times_hero_power_used_this_game
+	cost_mod = -Attr(CONTROLLER, GameTag.NUM_TIMES_HERO_POWER_USED_THIS_GAME)
 
 
 # Crowd Favorite

fireplace/cards/tgt/neutral_legendary.py

@@ -11,7 +11,7 @@ class AT_018:
 
 # Skycap'n Kragg
 class AT_070:
-	cost = lambda self, i: i - len(self.controller.field.filter(race=Race.PIRATE))
+	cost_mod = -Count(FRIENDLY_MINIONS + PIRATE)
 
 
 # Gormok the Impaler