From 89f55674765ab134d0e68bdb95eb7233b03e18fe Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Sun, 3 Sep 2017 12:08:40 +0100
Subject: [PATCH] Use Entity->getDirectionVector() more

---
 src/pocketmine/Player.php   | 6 +-----
 src/pocketmine/item/Bow.php | 8 +++++---
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index 5cb528a02..3e07ebaea 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -2376,11 +2376,7 @@ class Player extends Human implements CommandSender, ChunkLoader, IPlayer{
 			$this->level->sendBlocks([$this], [$target, $block], UpdateBlockPacket::FLAG_ALL_PRIORITY);
 			return true;
 		}elseif($packet->face === -1){
-			$directionVector = new Vector3(
-				-sin($this->yaw / 180 * M_PI) * cos($this->pitch / 180 * M_PI),
-				-sin($this->pitch / 180 * M_PI),
-				cos($this->yaw / 180 * M_PI) * cos($this->pitch / 180 * M_PI)
-			);
+			$directionVector = $this->getDirectionVector();
 
 			if($this->isCreative()){
 				$item = $this->inventory->getItemInHand();
diff --git a/src/pocketmine/item/Bow.php b/src/pocketmine/item/Bow.php
index 08313b9c2..5ff357c7f 100644
--- a/src/pocketmine/item/Bow.php
+++ b/src/pocketmine/item/Bow.php
@@ -54,6 +54,8 @@ class Bow extends Tool{
 			return false;
 		}
 
+		$directionVector = $player->getDirectionVector();
+
 		$nbt = new CompoundTag("", [
 			new ListTag("Pos", [
 				new DoubleTag("", $player->x),
@@ -61,9 +63,9 @@ class Bow extends Tool{
 				new DoubleTag("", $player->z)
 			]),
 			new ListTag("Motion", [
-				new DoubleTag("", -sin($player->yaw / 180 * M_PI) * cos($player->pitch / 180 * M_PI)),
-				new DoubleTag("", -sin($player->pitch / 180 * M_PI)),
-				new DoubleTag("", cos($player->yaw / 180 * M_PI) * cos($player->pitch / 180 * M_PI))
+				new DoubleTag("", $directionVector->x),
+				new DoubleTag("", $directionVector->y),
+				new DoubleTag("", $directionVector->z)
 			]),
 			new ListTag("Rotation", [
 				//yaw/pitch for arrows taken crosswise, not along the arrow shaft.