diff --git a/mappings/net/minecraft/world/World.mapping b/mappings/net/minecraft/world/World.mapping
index 054e4df802..0e1cd4fa2a 100644
--- a/mappings/net/minecraft/world/World.mapping
+++ b/mappings/net/minecraft/world/World.mapping
@@ -2,6 +2,7 @@ CLASS none/aiw net/minecraft/world/World
 	FIELD B lootTableHandler Lnone/bbm;
 	FIELD C profiler Lnone/os;
 	FIELD E isRemote Z
+	FIELD J ambientDarkness I
 	FIELD L calendar Ljava/util/Calendar;
 	FIELD M tickingBlockEntities Z
 	FIELD N border Lnone/atg;
@@ -28,12 +29,14 @@ CLASS none/aiw net/minecraft/world/World
 	METHOD A getBiomeProvider ()Lnone/ajn;
 	METHOD A setSpawnPos (Lnone/cn;)V
 		ARG 0 pos
+	METHOD B isDaylight ()Z
 	METHOD D getLocalDifficulty (Lnone/cn;)Lnone/ra;
 		ARG 0 pos
 	METHOD E isInvalidHeight (Lnone/cn;)Z
 		ARG 0 pos
 	METHOD F getEntityCountAsString ()Ljava/lang/String;
 	METHOD G getChunkProviderStatus ()Ljava/lang/String;
+	METHOD H updateAmbientDarkness ()V
 	METHOD J getEntitiesToRender ()Ljava/util/List;
 	METHOD K getSeaLevel ()I
 	METHOD L getWorldGenerator ()Lnone/ajb;
@@ -45,6 +48,7 @@ CLASS none/aiw net/minecraft/world/World
 	METHOD S getSaveHandler ()Lnone/bav;
 	METHOD T getProperties ()Lnone/bau;
 	METHOD U getGameRules ()Lnone/ait;
+	METHOD a calculateAmbientDarkness (F)I
 	METHOD a getEntityById (I)Lnone/sg;
 		ARG 0 id
 	METHOD a getChunk (II)Lnone/atp;
@@ -147,6 +151,7 @@ CLASS none/aiw net/minecraft/world/World
 	METHOD a (Lnone/sg;Lnone/bcs;Lcom/google/common/base/Predicate;)Ljava/util/List;
 	METHOD ac ()Ljava/util/Calendar;
 	METHOD ae getDifficulty ()Lnone/qz;
+	METHOD af getAmbientDarkness ()I
 	METHOD aj getWorldBorder ()Lnone/atg;
 	METHOD ak getLootTableHandler ()Lnone/bbm;
 	METHOD b ()Lnone/aiw;
@@ -178,6 +183,8 @@ CLASS none/aiw net/minecraft/world/World
 	METHOD b (Lnone/cn;Z)Z
 	METHOD b onSpawnEntity (Lnone/sg;)V
 		ARG 0 entity
+	METHOD c setAmbientDarkness (I)V
+		ARG 0 value
 	METHOD c setBlockDestroyProgress (ILnone/cn;I)V
 		ARG 0 entityId
 		ARG 1 pos