From be1f338bd338ac8db0cf3d152f6afd608d83cb41 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwe@kingsome.cn>
Date: Mon, 13 May 2019 13:58:10 +0800
Subject: [PATCH] 1

---
 server/gameserver/player.cc | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index a5f2296..e656c7e 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -811,10 +811,14 @@ void Player::_CMMove(f8::MsgHdr& hdr, const cs::CMMove& msg)
     #endif
     if (!a8::HasBitFlag(status, HS_Fly)) {
         if (msg.has_attack_dir()) {
-            if (std::abs(msg.attack_dir().x()) > 0.000001f ||
-                std::abs(msg.attack_dir().y()) > 0.000001f) {
-                attack_dir.FromPB(&msg.attack_dir());
-                attack_dir.Normalize();
+            if (!std::isfinite(msg.attack_dir().x()) &&
+                !std::isfinite(msg.attack_dir().y()) &&
+                !std::isnan(msg.attack_dir().x()) &&
+                !std::isnan(msg.attack_dir().y())
+                )
+                {
+                    attack_dir.FromPB(&msg.attack_dir());
+                    attack_dir.Normalize();
             }
         } else {
             if (moving) {