From f46c70093ce42a0b82368f97d9e9ff518cc301ef Mon Sep 17 00:00:00 2001
From: wizjany <wizjany@gmail.com>
Date: Fri, 1 Mar 2019 19:29:34 -0500
Subject: [PATCH] Fix the long-range build tool's ability to build mid-air.

---
 .../src/main/java/com/sk89q/worldedit/util/Location.java | 3 +++
 .../main/java/com/sk89q/worldedit/util/TargetBlock.java  | 9 +++++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/util/Location.java b/worldedit-core/src/main/java/com/sk89q/worldedit/util/Location.java
index 8e95e9eb0..ea161111b 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/util/Location.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/util/Location.java
@@ -208,6 +208,9 @@ public class Location {
      * @return the direction vector
      */
     public Vector3 getDirection() {
+        if (Float.isNaN(getYaw()) && Float.isNaN(getPitch())) {
+            return Vector3.ZERO;
+        }
         double yaw = Math.toRadians(this.getYaw());
         double pitch = Math.toRadians(this.getPitch());
         double xz = Math.cos(pitch);
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/util/TargetBlock.java b/worldedit-core/src/main/java/com/sk89q/worldedit/util/TargetBlock.java
index 60c979dee..9d0cf2baa 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/util/TargetBlock.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/util/TargetBlock.java
@@ -189,11 +189,16 @@ public class TargetBlock {
 
     public Location getAnyTargetBlockFace() {
         getAnyTargetBlock();
-        return getCurrentBlock().setDirection(getCurrentBlock().toVector().subtract(getPreviousBlock().toVector()));
+        Location current = getCurrentBlock();
+        if (current != null)
+            return current.setDirection(current.toVector().subtract(getPreviousBlock().toVector()));
+        else
+            return new Location(world, targetPos.toVector3(), Float.NaN, Float.NaN);
     }
 
     public Location getTargetBlockFace() {
-        getAnyTargetBlock();
+        getTargetBlock();
+        if (getCurrentBlock() == null) return null;
         return getCurrentBlock().setDirection(getCurrentBlock().toVector().subtract(getPreviousBlock().toVector()));
     }