119 lines
3.2 KiB
C++
119 lines
3.2 KiB
C++
/******************************************************************************
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This file is part of a voxel plugin for OGRE
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Copyright (C) 2006 David Williams
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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******************************************************************************/
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#include <cstring>
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namespace PolyVox
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{
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template <typename VoxelType>
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Block<VoxelType>::Block(boost::uint8_t uSideLengthPower)
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:m_tData(0)
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{
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//Check the block size is sensible. This corresponds to a side length of 256 voxels
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assert(uSideLengthPower <= 8);
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//Compute the side length
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m_uSideLengthPower = uSideLengthPower;
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m_uSideLength = 0x01 << uSideLengthPower;
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//If this fails an exception will be thrown. Memory is not
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//allocated and there is nothing else in this class to clean up
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m_tData = new VoxelType[getNoOfVoxels()];
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}
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template <typename VoxelType>
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Block<VoxelType>::Block(const Block<VoxelType>& rhs)
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{
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*this = rhs;
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}
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template <typename VoxelType>
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Block<VoxelType>::~Block()
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{
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delete[] m_tData;
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m_tData = 0;
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}
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template <typename VoxelType>
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Block<VoxelType>& Block<VoxelType>::operator=(const Block<VoxelType>& rhs)
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{
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if (this == &rhs)
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{
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return *this;
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}
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memcpy(m_tData,rhs.m_tData,getNoOfVoxels());
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return *this;
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}
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template <typename VoxelType>
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VoxelType Block<VoxelType>::getVoxelAt(const boost::uint16_t xPosition, const boost::uint16_t yPosition, const boost::uint16_t zPosition) const
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{
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return m_tData
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[
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xPosition +
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yPosition * m_uSideLength +
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zPosition * m_uSideLength * m_uSideLength
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];
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}
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template <typename VoxelType>
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void Block<VoxelType>::setVoxelAt(const boost::uint16_t xPosition, const boost::uint16_t yPosition, const boost::uint16_t zPosition, const VoxelType value)
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{
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m_tData
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[
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xPosition +
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yPosition * m_uSideLength +
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zPosition * m_uSideLength * m_uSideLength
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] = value;
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}
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template <typename VoxelType>
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boost::uint16_t Block<VoxelType>::getSideLength(void)
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{
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return m_uSideLength;
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}
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template <typename VoxelType>
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boost::uint32_t Block<VoxelType>::getNoOfVoxels(void)
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{
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return m_uSideLength * m_uSideLength * m_uSideLength;
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}
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/*void Block::fillWithValue(const VoxelType value)
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{
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memset(mData,value,POLYVOX_NO_OF_VOXELS_IN_BLOCK);
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}*/
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/*bool Block::isHomogeneous(void)
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{
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VoxelType uFirstVoxel = mData[0];
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for(uint32_t ct = 1; ct < POLYVOX_NO_OF_VOXELS_IN_BLOCK; ++ct)
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{
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if(mData[ct] != uFirstVoxel)
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{
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return false;
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}
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}
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return true;
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}*/
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}
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