QTS no. 19 - Primitive 3D shape drawing function

/*
-----------------------------------------
* Game hacking QTS ( Quickie Tip Series )
* no. 19 - Primitive 3D shape drawing function
-----------------------------------------
* Author: SEGnosis  - GHAnon.net
* Thanks to:
* bitterbanana      - No known site
* Drunken Cheetah   - No known site
* fatboy88      - No known site
* Geek4Ever         - No known site
* learn_more        - www.uc-forum.com
* Novocaine         - http://ilsken.net/blog/?page_id=64
* Philly0494        - No known site
* Roverturbo        - www.uc-forum.com
* SilentKarma       - www.halocoders.com - offline
* Strife        - www.uc-forum.com
* Wieter20      - No known site
*/

//------------------------------------//
void BoundingShape( FVect3 vPos, DWORD dwWidth, DWORD dwHeight, DWORD dwSides, float fRotation )
{
    POINT* ptBase = new POINT[ dwSides + 1 ]; // make points to draw to
    POINT* ptTop  = new POINT[ dwSides + 1 ];

    FVect3 vBaseSquare  = vPos;
    FVect3 vTopSquare   = vPos;

    vTopSquare.y += dwHeight; // height of box

    for( int i = 0; i < dwSides; i++ )
    {
        vBaseSquare.x = ( cosf( fRotation ) * dwWidth ) + vPos.x;
        vBaseSquare.z = ( sinf( fRotation ) * dwWidth ) + vPos.z;

        vTopSquare.x = vBaseSquare.x;
        vTopSquare.z = vBaseSquare.z;

        ptBase[ i ] = CDraw.World2Screen( vBaseSquare );
        ptTop [ i ] = CDraw.World2Screen( vTopSquare );

        fRotation += PI_SQUARED/dwSides; // offset
    }

    ptBase[ dwSides ] = ptBase[ 0 ]; // set finishing point
    ptTop [ dwSides ] = ptTop [ 0 ];

    for( int i = 0; i < dwSides; i++ ) // Draw Bottom
        CDraw.Line( ptBase[ i ].x, ptBase[ i ].y, ptBase[ i + 1 ].x, ptBase[ i + 1 ].y, 1, CDraw.m_coRed );

    for( int i = 0; i < dwSides; i++ ) // Draw top
        CDraw.Line( ptTop[ i ].x, ptTop[ i ].y, ptTop[ i + 1 ].x, ptTop[ i + 1 ].y, 1, CDraw.m_coRed );

    for( int i = 0;+ i < dwSides; i++ ) // Draw lines from bottom to top
        CDraw.Line( ptBase[ i ].x, ptBase[ i ].y, ptTop[ i ].x, ptTop[ i ].y, 1, CDraw.m_coRed );
}
//------------------------------------//