Parametric Female/Female Pin Connector

function getParameterDefinitions( )
{
  return [
    { name: 'rows', type: 'int', initial: 2, caption: "Number of rows:" },
    { name: 'pins', type: 'int', initial: 13, caption: "Number of pins:" },
    { name: 'shape', type: 'choice', caption: "Shape of hole:", values: [ 0, 1 ], captions: [ "Cube", "Cylinder" ], initial: 0 },
    { name: 'length', type: 'float', initial: 8, caption: "Depth of the cube:" },
    { name: 'left', type: 'float', initial: 0.0, caption: "Padding on left:" },
    { name: 'right', type: 'float', initial: 0.0, caption: "Padding on right:" },
    { name: 'hole', type: 'float', initial: 1.5, caption: "Dimensions of hole:" },
    { name: 'gap', type: 'float', initial: 0.5, caption: "Gap around the hole:" },
  ];
}

function main( p )
{
    var width = p.left + p.pins * ( p.hole + p.gap * 2 ) + p.right;
    var height = p.rows * ( p.hole + p.gap * 2 );
    var hole_x = p.gap * 2 + p.hole;
    var hole_z = p.gap * 2 + p.hole;

    var obj = cube( { size: [ width, p.length, height ] } );
    var hole = cube( { size: [ p.hole, p.length, p.hole ] } );

    if ( p.shape == 1 )
        hole = cylinder( { r: p.hole / 2, h: p.length } ).rotateX( -90 ).translate( [ p.hole / 2, 0, p.hole / 2 ]);

    for ( var i = 0; i < p.pins; i ++ )
        for ( var j = 0; j < p.rows ; j ++ )
            obj = difference( obj, hole.translate( [ p.left + p.gap + hole_x * i, 0, p.gap + hole_z * j ] ) );

    return obj;
}