var Human = function( name )
{
    var parent = this;
    this.init = function( name )
    {
        parent.name = name;
    }( name );
}

var ardi = new Human( "Ardi" );

ardi.name (Is inaccessible)

Because it retains "bases"' "this" value, eg:
ardi.built or ardi.getEnemies() (Will have a value)

^ This is not how JavaScript works.

<Only proper workaround>

var Human = function( name )
{
    var fakeThis = {};

    fakeThis.init = function( name )
    {
        fakeThis.name = name;
    }( name );

    return fakeThis;
}

^ This is also unreliable hack since some of the things get fucked


---WHAT WE SHOULD HAVE---
Is template similar to this:

var Human = function()
{
    var parent = this;
    this.init = function( name )
    {
        parent.name = this;
    }( name );
}

this.chooseAction = function()
{
    /* Choose action logic here, that gets called by your game engine */
}