diff --git a/mappings/net/minecraft/structure/StructurePiecesHolder.mapping b/mappings/net/minecraft/structure/StructurePiecesHolder.mapping
new file mode 100644
index 0000000000..47c5b1efb8
--- /dev/null
+++ b/mappings/net/minecraft/structure/StructurePiecesHolder.mapping
@@ -0,0 +1,13 @@
+CLASS net/minecraft/class_6130 net/minecraft/structure/StructurePiecesHolder
+	COMMENT A holder of generated structure pieces.
+	COMMENT
+	COMMENT @see StructurePiece#fillOpenings
+	METHOD method_35461 getIntersecting (Lnet/minecraft/class_3341;)Lnet/minecraft/class_3443;
+		COMMENT Returns an arbitrary piece in this holder that intersects the given {@code box},
+		COMMENT or {@code null} if there is no such piece.
+		ARG 1 box
+			COMMENT the box to check intersection against
+	METHOD method_35462 addPiece (Lnet/minecraft/class_3443;)V
+		COMMENT Adds a structure piece into this holder.
+		ARG 1 piece
+			COMMENT the piece to add
diff --git a/mappings/net/minecraft/structure/StructureStart.mapping b/mappings/net/minecraft/structure/StructureStart.mapping
index 5b95bd1e3f..8c5c5d1cbd 100644
--- a/mappings/net/minecraft/structure/StructureStart.mapping
+++ b/mappings/net/minecraft/structure/StructureStart.mapping
@@ -62,9 +62,10 @@ CLASS net/minecraft/class_3449 net/minecraft/structure/StructureStart
 		ARG 1 amount
 	METHOD method_35464 contains (Lnet/minecraft/class_2338;)Z
 		ARG 1 pos
-	METHOD method_35465 intersects (Ljava/util/List;Lnet/minecraft/class_3341;)Lnet/minecraft/class_3443;
+	METHOD method_35465 getIntersecting (Ljava/util/List;Lnet/minecraft/class_3341;)Lnet/minecraft/class_3443;
 		ARG 0 pieces
 		ARG 1 box
 	METHOD method_35466 clearChildren ()V
 	METHOD method_35467 hasNoChildren ()Z
 	METHOD method_35468 resetBoundingBox ()V
+	METHOD method_36217 calculateBoundingBox ()Lnet/minecraft/class_3341;
diff --git a/mappings/net/minecraft/test/TimedTaskRunner.mapping b/mappings/net/minecraft/test/TimedTaskRunner.mapping
index 31f2e180b3..265e985c0e 100644
--- a/mappings/net/minecraft/test/TimedTaskRunner.mapping
+++ b/mappings/net/minecraft/test/TimedTaskRunner.mapping
@@ -11,6 +11,7 @@ CLASS net/minecraft/class_4693 net/minecraft/test/TimedTaskRunner
 	METHOD method_23645 runTasks (J)V
 		ARG 1 tick
 	METHOD method_36077 (ILjava/lang/Runnable;)Lnet/minecraft/class_4693;
+		ARG 1 delay
 		ARG 2 task
 	METHOD method_36078 createAndAdd (JLjava/lang/Runnable;)Lnet/minecraft/class_4693;
 		ARG 1 duration
@@ -23,3 +24,9 @@ CLASS net/minecraft/class_4693 net/minecraft/test/TimedTaskRunner
 		ARG 1 task
 	METHOD method_36089 tryRun (Ljava/lang/Runnable;)V
 		ARG 1 task
+	CLASS class_6304 Trigger
+		FIELD field_33154 UNTRIGGERED_TICK J
+		FIELD field_33155 triggeredTick J
+		METHOD method_36092 checkTrigger ()V
+		METHOD method_36093 trigger (J)V
+			ARG 1 tick
diff --git a/mappings/net/minecraft/util/math/BlockBox.mapping b/mappings/net/minecraft/util/math/BlockBox.mapping
index ed0790fcdb..2dd126ca86 100644
--- a/mappings/net/minecraft/util/math/BlockBox.mapping
+++ b/mappings/net/minecraft/util/math/BlockBox.mapping
@@ -91,11 +91,11 @@ CLASS net/minecraft/class_3341 net/minecraft/util/math/BlockBox
 		ARG 0 box
 	METHOD method_35410 expand (I)Lnet/minecraft/class_3341;
 		ARG 1 offset
-	METHOD method_35411 encompass (Ljava/lang/Iterable;)Ljava/util/Optional;
+	METHOD method_35411 encompassPositions (Ljava/lang/Iterable;)Ljava/util/Optional;
 		ARG 0 positions
-	METHOD method_35412 intersection (Lnet/minecraft/class_3341;)Lnet/minecraft/class_3341;
+	METHOD method_35412 encompass (Lnet/minecraft/class_3341;)Lnet/minecraft/class_3341;
 		ARG 1 box
-	METHOD method_35413 intersect (Ljava/lang/Iterable;)Ljava/util/Optional;
+	METHOD method_35413 encompass (Ljava/lang/Iterable;)Ljava/util/Optional;
 		ARG 0 boxes
 	METHOD method_35414 getBlockCountX ()I
 	METHOD method_35415 getMinX ()I