diff --git a/Core/src/LuaModule/utils.pkg b/Core/src/LuaModule/utils.pkg
index 5c8725a6..4e879bb3 100644
--- a/Core/src/LuaModule/utils.pkg
+++ b/Core/src/LuaModule/utils.pkg
@@ -27,4 +27,5 @@ namespace Utils{
 	bool InTheirPenaltyArea(const CGeoPoint& p,const double buffer);
 	bool PlayerNumValid(int num);
 	bool canGo(const CVisionModule* pVision, const int num, const CGeoPoint& target, const int flag, const double avoidBuffer);
+	double angDiff(double angle1, double angle2);
 }
\ No newline at end of file
diff --git a/Core/src/Utils/utils.cpp b/Core/src/Utils/utils.cpp
index 2755d786..7bb7c816 100644
--- a/Core/src/Utils/utils.cpp
+++ b/Core/src/Utils/utils.cpp
@@ -3,8 +3,11 @@
 #include "staticparams.h"
 #include <GDebugEngine.h>
 #include <iostream>
-
+#include "geomcalc.h"
 namespace Utils{
+    double angDiff(double angle1, double angle2){
+        return angleDiff(angle1,angle2);
+    }
     double dirDiff(const CVector& v1, const CVector& v2) { return fabs(Normalize(v1.dir() - v2.dir()));}
 	double Normalize(double angle)
 	{
diff --git a/Core/src/Utils/utils.h b/Core/src/Utils/utils.h
index 96caccb4..31db2996 100644
--- a/Core/src/Utils/utils.h
+++ b/Core/src/Utils/utils.h
@@ -29,6 +29,8 @@
 class CVisionModule;
 struct PlayerPoseT;
 namespace Utils {
+extern double angDiff(double angle1, double angle2);
+
 extern double Normalize(double angle);///<把角度规范化到(-PI,PI]
 extern CVector Polar2Vector(double m, double angle); ///<极坐标转换到直角坐标
 extern double VectorDot(const CVector& v1, const CVector& v2);  // 向量点乘