From bf5a9f7ab8c068461f491b384214036b892e4caf Mon Sep 17 00:00:00 2001
From: David Williams <david@david-williams.info>
Date: Wed, 2 Jan 2013 23:03:07 +0100
Subject: [PATCH] Added getCentre() to Region class.

---
 .../PolyVoxCore/include/PolyVoxCore/Region.h  | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/library/PolyVoxCore/include/PolyVoxCore/Region.h b/library/PolyVoxCore/include/PolyVoxCore/Region.h
index aa7681fa..d65fb022 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/Region.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/Region.h
@@ -74,6 +74,12 @@ namespace PolyVox
 		/// Inequality Operator.
         bool operator!=(const Region& rhs) const;
 
+		/// Gets the 'x' position of the centre.
+		int32_t getCentreX(void) const;
+		/// Gets the 'y' position of the centre.
+		int32_t getCentreY(void) const;
+		/// Gets the 'z' position of the centrer.
+		int32_t getCentreZ(void) const;
 		/// Gets the 'x' position of the lower corner.
 		int32_t getLowerX(void) const;
 		/// Gets the 'y' position of the lower corner.
@@ -87,6 +93,8 @@ namespace PolyVox
 		/// Gets the 'z' position of the upper corner.
 		int32_t getUpperZ(void) const;
 
+		/// Gets the centre of the region
+		Vector3DInt32 getCentre(void) const;
 		/// Gets the position of the lower corner.
 		Vector3DInt32 getLowerCorner(void) const;
 		/// Gets the position of the upper corner.
@@ -203,6 +211,30 @@ namespace PolyVox
 	// 'inline' keyword is used for the definition rather than the declaration.
 	// See also http://www.parashift.com/c++-faq-lite/inline-functions.html
 
+	/**
+	 *  \return The 'x' position of the centre.
+	 */
+	inline int32_t Region::getCentreX(void) const
+	{
+		return (m_iLowerX + m_iUpperX) / 2;
+	}
+
+	/**
+	 *  \return The 'y' position of the centre.
+	 */
+	inline int32_t Region::getCentreY(void) const
+	{
+		return (m_iLowerY + m_iUpperY) / 2;
+	}
+
+	/**
+	 *  \return The 'z' position of the centre.
+	 */
+	inline int32_t Region::getCentreZ(void) const
+	{
+		return (m_iLowerZ + m_iUpperZ) / 2;
+	}
+
 	/**
 	 *  \return The 'x' position of the lower corner.
 	 */
@@ -251,6 +283,14 @@ namespace PolyVox
 		return m_iUpperZ;
 	}
 
+	/**
+	 *  \return The position of the lower corner.
+	 */
+	inline Vector3DInt32 Region::getCentre(void) const
+	{
+		return Vector3DInt32(getCentreX(), getCentreY(), getCentreZ());
+	}
+
 	/**
 	 *  \return The position of the lower corner.
 	 */