Swallow/Spit Up Gen 5 Behavior and tests for Swallow/Spit Up/Stockpile (#2790)

data/battle_scripts_1.s

@@ -5545,6 +5545,9 @@ BattleScript_EffectStockpile::
 	waitanimation
 	printfromtable gStockpileUsedStringIds
 	waitmessage B_WAIT_TIME_LONG
+	.if B_STOCKPILE_RAISES_DEFS < GEN_4
+	goto BattleScript_EffectStockpileEnd
+	.endif
 	jumpifmovehadnoeffect BattleScript_EffectStockpileEnd
 	jumpifstat BS_ATTACKER, CMP_LESS_THAN, STAT_DEF, MAX_STAT_STAGE, BattleScript_EffectStockpileDef
 	jumpifstat BS_ATTACKER, CMP_EQUAL, STAT_SPDEF, MAX_STAT_STAGE, BattleScript_EffectStockpileEnd
@@ -5565,6 +5568,23 @@ BattleScript_EffectStockpileSpDef::
 BattleScript_EffectStockpileEnd:
 	stockpile 1
 	goto BattleScript_MoveEnd
+	
+BattleScript_MoveEffectStockpileWoreOff::
+	.if B_STOCKPILE_RAISES_DEFS >= GEN_4
+	dostockpilestatchangeswearoff BS_ATTACKER, BattleScript_StockpileStatChangeDown
+	printstring STRINGID_STOCKPILEDEFFECTWOREOFF
+	waitmessage B_WAIT_TIME_SHORT
+	.endif
+	return
+	
+BattleScript_StockpileStatChangeDown:
+	statbuffchange MOVE_EFFECT_AFFECTS_USER, BattleScript_StockpileStatChangeDown_Ret
+	setgraphicalstatchangevalues
+	playanimation BS_ATTACKER, B_ANIM_STATS_CHANGE, sB_ANIM_ARG1
+	printfromtable gStatDownStringIds
+	waitmessage B_WAIT_TIME_LONG
+BattleScript_StockpileStatChangeDown_Ret:
+	return
 
 BattleScript_EffectSpitUp::
 	attackcanceler