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Editor/Grid.cpp

@@ -0,0 +1,86 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//  Crytek Engine Source File.
+//  Copyright (C), Crytek Studios, 2002.
+// -------------------------------------------------------------------------
+//  File name:   grid.cpp
+//  Version:     v1.00
+//  Created:     8/7/2002 by Timur.
+//  Compilers:   Visual Studio.NET
+//  Description: 
+// -------------------------------------------------------------------------
+//  History:
+//
+////////////////////////////////////////////////////////////////////////////
+
+#include "StdAfx.h"
+#include "Grid.h"
+
+//////////////////////////////////////////////////////////////////////////
+CGrid::CGrid()
+{
+	scale = 1;
+	size = 1;
+	majorLine = 10;
+	bEnabled = true;
+
+	bAngleSnapEnabled = true;
+	angleSnap = 5;
+}
+
+//////////////////////////////////////////////////////////////////////////
+Vec3 CGrid::Snap( const Vec3 &vec ) const
+{
+	if (!bEnabled || size<0.001f)
+		return vec;
+	Vec3 snapped;
+	snapped.x = floor((vec.x/size)/scale + 0.5f) * size * scale;
+	snapped.y = floor((vec.y/size)/scale + 0.5f) * size * scale;
+	snapped.z = floor((vec.z/size)/scale + 0.5f) * size * scale;
+	return snapped;
+}
+
+//////////////////////////////////////////////////////////////////////////
+float CGrid::SnapAngle( float angle ) const
+{
+	if (!bAngleSnapEnabled)
+		return angle;
+	return floor(angle/angleSnap + 0.5f) * angleSnap;
+}
+
+//////////////////////////////////////////////////////////////////////////
+Vec3 CGrid::SnapAngle( const Vec3 &vec ) const
+{
+	if (!bAngleSnapEnabled)
+		return vec;
+	Vec3 snapped;
+	snapped.x = floor(vec.x/angleSnap + 0.5f) * angleSnap;
+	snapped.y = floor(vec.y/angleSnap + 0.5f) * angleSnap;
+	snapped.z = floor(vec.z/angleSnap + 0.5f) * angleSnap;
+	return snapped;
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CGrid::Serialize( XmlNodeRef &xmlNode,bool bLoading )
+{
+	if (bLoading)
+	{
+		// Loading.
+		xmlNode->getAttr( "Size",size );
+		xmlNode->getAttr( "Scale",scale );
+		xmlNode->getAttr( "Enabled",bEnabled );
+		xmlNode->getAttr( "MajorSize",majorLine );
+		xmlNode->getAttr( "AngleSnap",angleSnap );
+		xmlNode->getAttr( "AngleSnapEnabled",bAngleSnapEnabled );
+	}
+	else
+	{
+		// Saving.
+		xmlNode->setAttr( "Size",size );
+		xmlNode->setAttr( "Scale",scale );
+		xmlNode->setAttr( "Enabled",bEnabled );
+		xmlNode->setAttr( "MajorSize",majorLine );
+		xmlNode->setAttr( "AngleSnap",angleSnap );
+		xmlNode->setAttr( "AngleSnapEnabled",bAngleSnapEnabled );
+	}
+}