C++ (Cpp) Poly::AddPoly示例

示例#1

文件： poly.cpp 项目： stefanha/map-files

Poly *Poly::CopyList ( ) const
{
	Poly *pPoly = new Poly;

	pPoly->TextureID = TextureID;

	pPoly->m_iNumberOfVertices = m_iNumberOfVertices;
	pPoly->plane = plane;

	pPoly->verts = new Vertex[ m_iNumberOfVertices ];
	memcpy ( pPoly->verts, verts, sizeof ( Vertex ) * m_iNumberOfVertices );

	if ( !IsLast ( ) )
	{
		pPoly->AddPoly ( m_pNext->CopyList ( ) );
	}

	return pPoly;
}

示例#2

文件： poly.cpp 项目： stefanha/map-files

Poly *Poly::ClipToList ( Poly *pPoly_, bool bClipOnPlane_ )
{
	switch ( ClassifyPoly ( pPoly_ ) )
	{
	case eCP::FRONT:
		{
			return pPoly_->CopyPoly ( );
		} break;

	case eCP::BACK:
		{
			if ( IsLast ( ) )
			{
				return NULL;
			}

			return m_pNext->ClipToList ( pPoly_, bClipOnPlane_ );
		} break;

	case eCP::ONPLANE:
		{
			double	Angle = plane.n.Dot ( pPoly_->plane.n ) - 1;

			if ( ( Angle < epsilon ) && ( Angle > -epsilon ) )
			{
				if ( !bClipOnPlane_ )
				{
					return pPoly_->CopyPoly ( );
				}
			}

			if ( IsLast ( ) )
			{
				return NULL;
			}

			return m_pNext->ClipToList ( pPoly_, bClipOnPlane_ );
		} break;

	case eCP::SPLIT:
		{
			Poly *pFront	= NULL;
			Poly *pBack		= NULL;

			SplitPoly ( pPoly_, &pFront, &pBack );

			if ( IsLast ( ) )
			{
				delete pBack;

				return pFront;
			}

			Poly *pBackFrags = m_pNext->ClipToList ( pBack, bClipOnPlane_ );

			if ( pBackFrags == NULL )
			{
				delete pBack;

				return pFront;
			}

			if ( *pBackFrags == *pBack )
			{
				delete pFront;
				delete pBack;
				delete pBackFrags;

				return pPoly_->CopyPoly ( );
			}

			delete pBack;

			pFront->AddPoly ( pBackFrags );

			return pFront;
		} break;
	}

	return NULL;
}