Get3DCoords

local function AngleMatrix( ang, matrix )
    local rp = math.rad( ang.p );
    local sp, cp = math.sin( rp ), math.cos( rp );
    local ry = math.rad( ang.y );
    local sy, cy = math.sin( ry ), math.cos( ry );
    local rr = math.rad( ang.r );
    local sr, cr = math.sin( rr ), math.cos( rr );
    matrix[0].x = cp * cy;
    matrix[1].x = cp * sy;
    matrix[2].x = -sp;
    local crcy = cr * cy;
    local crsy = cr * sy;
    local srcy = sr * cy;
    local srsy = sr * sy;
    matrix[0].y = sp * srcy - crsy;
    matrix[1].y = sp * srsy + crcy;
    matrix[2].y = sr * cp;
    matrix[0].z = ( sp * crcy + srsy );
    matrix[1].z = ( sp * crsy - srcy );
    matrix[2].z = cr * cp;
    return matrix;
end

local function RotateVector( vec, matrix, set )
    set.x = vec:DotProduct( matrix[0] );
    set.y = vec:DotProduct( matrix[1] );
    set.z = vec:DotProduct( matrix[2] );
    return set;
end

local function Get3DCoords( org, mins, maxs, ang, keeplocal )
    local vecs = {
        [0] = Vector( mins.x, mins.y, mins.z ), // front-bottom-right
        [1] = Vector( maxs.x, mins.y, mins.z ), // front-top-right
        [2] = Vector( maxs.x, maxs.y, mins.z ), // back-top-right
        [3] = Vector( mins.x, maxs.y, mins.z ), // back-bottom-right
        [4] = Vector( mins.x, mins.y, maxs.z ), // front-bottom-left
        [5] = Vector( maxs.x, mins.y, maxs.z ), // front-top-left
        [6] = Vector( maxs.x, maxs.y, maxs.z ), // back-top-left
        [7] = Vector( mins.x, maxs.y, maxs.z ), // back-bottom-left
    };
    local angmatrix = {
        [0] = Vector( 0, 0, 0 ),
        [1] = Vector( 0, 0, 0 ),
        [2] = Vector( 0, 0, 0 ),
    };

    AngleMatrix( ang, angmatrix );

    local retv = {};
    for i = 0, 7 do
        if( !vecs[i] ) then continue; end
        retv[i] = Vector( 0, 0, 0 );
        RotateVector( vecs[i], angmatrix, retv[i] );
        if( !keeplocal ) then
            retv[i] = retv[i] + org;
        end
    end

    return retv;
end