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