1 files changed, 35 insertions, 35 deletions

diff --git a/src/Defines.h b/src/Defines.h
index 9fa3b3a8e..0981077c4 100644
--- a/src/Defines.h
+++ b/src/Defines.h
@@ -1,8 +1,8 @@
 
 #pragma once
 
-#include "ChatColor.h"
 #include <limits>
+#include <cmath>
 
 
 
@@ -21,7 +21,7 @@ typedef std::vector<int> cSlotNums;
 /// Experience Orb setup
 enum
 {
-	//open to suggestion on naming convention here :)
+	// Open to suggestion on naming convention here :)
 	MAX_EXPERIENCE_ORB_SIZE = 2000
 } ;
 
@@ -273,8 +273,19 @@ inline eBlockFace RotateBlockFaceCW(eBlockFace a_BlockFace)
 	}
 }
 
-
-
+inline eBlockFace ReverseBlockFace(eBlockFace  a_BlockFace)
+{
+	switch (a_BlockFace)
+	{
+		case BLOCK_FACE_YP: return BLOCK_FACE_YM;
+		case BLOCK_FACE_XP: return BLOCK_FACE_XM;
+		case BLOCK_FACE_ZP: return BLOCK_FACE_ZM;
+		case BLOCK_FACE_YM: return BLOCK_FACE_YP;
+		case BLOCK_FACE_XM: return BLOCK_FACE_XP;
+		case BLOCK_FACE_ZM: return BLOCK_FACE_ZP;
+		default: return a_BlockFace;
+	}
+}
 
 
 /** Returns the textual representation of the BlockFace constant. */
@@ -459,18 +470,7 @@ inline void AddFaceDirection(int & a_BlockX, unsigned char & a_BlockY, int & a_B
 {
 	int Y = a_BlockY;
 	AddFaceDirection(a_BlockX, Y, a_BlockZ, a_BlockFace, a_bInverse);
-	if (Y < 0)
-	{
-		a_BlockY = 0;
-	}
-	else if (Y > 255)
-	{
-		a_BlockY = 255;
-	}
-	else
-	{
-		a_BlockY = (unsigned char)Y;
-	}
+	a_BlockY = Clamp<unsigned char>((unsigned char)Y, 0, 255);
 }
 
 
@@ -479,9 +479,9 @@ inline void AddFaceDirection(int & a_BlockX, unsigned char & a_BlockY, int & a_B
 
 inline void EulerToVector(double a_Pan, double a_Pitch, double & a_X, double & a_Y, double & a_Z)
 {
-	// 	a_X = sinf ( a_Pan / 180 * PI ) * cosf ( a_Pitch / 180 * PI );
-	// 	a_Y = -sinf ( a_Pitch / 180 * PI );
-	// 	a_Z = -cosf ( a_Pan / 180 * PI ) * cosf ( a_Pitch / 180 * PI );
+	// 	a_X = sinf ( a_Pan / 180 * PI) * cosf ( a_Pitch / 180 * PI);
+	// 	a_Y = -sinf ( a_Pitch / 180 * PI);
+	// 	a_Z = -cosf ( a_Pan / 180 * PI) * cosf ( a_Pitch / 180 * PI);
 	a_X = cos(a_Pan / 180 * PI) * cos(a_Pitch / 180 * PI);
 	a_Y = sin(a_Pan / 180 * PI) * cos(a_Pitch / 180 * PI);
 	a_Z = sin(a_Pitch / 180 * PI);
@@ -500,7 +500,7 @@ inline void VectorToEuler(double a_X, double a_Y, double a_Z, double & a_Pan, do
 	}
 	else
 	{
-		a_Pan = atan2(a_Z, a_X) * 180 / PI - 90;		
+		a_Pan = atan2(a_Z, a_X) * 180 / PI - 90;
 	}
 
 	a_Pitch = atan2(a_Y, r) * 180 / PI;
@@ -519,7 +519,7 @@ inline float GetSignf(float a_Val)
 
 
 
-inline float GetSpecialSignf( float a_Val )
+inline float GetSpecialSignf( float a_Val)
 {
 	return (a_Val <= 0.f) ? -1.f : 1.f;
 }
@@ -528,6 +528,15 @@ inline float GetSpecialSignf( float a_Val )
 
 
 
+template<class T> inline T Diff(T a_Val1, T a_Val2)
+{
+	return std::abs(a_Val1 - a_Val2);
+}
+
+
+
+
+
 // tolua_begin
 
 enum eMessageType
@@ -631,11 +640,11 @@ namespace ItemCategory
 
 	inline bool IsTool(short a_ItemID)
 	{
-		return IsPickaxe( a_ItemID )
-			|| IsAxe    ( a_ItemID )
-			|| IsSword  ( a_ItemID )
-			|| IsHoe    ( a_ItemID )
-			|| IsShovel ( a_ItemID );
+		return IsPickaxe( a_ItemID)
+			|| IsAxe    ( a_ItemID)
+			|| IsSword  ( a_ItemID)
+			|| IsHoe    ( a_ItemID)
+			|| IsShovel ( a_ItemID);
 	}
 	
 	
@@ -706,14 +715,5 @@ namespace ItemCategory
 // tolua_end
 
 
-inline bool BlockRequiresSpecialTool(BLOCKTYPE a_BlockType)
-{
-	if(!IsValidBlock(a_BlockType)) return false;
-	return cBlockInfo::RequiresSpecialTool(a_BlockType);
-}
-
-
-
-