How to render a custom node

Hello everyone!

I've followed the node_example.module tutorial and the Creating modules tutorial to create a module. It's a roster of characters for an online game. I have the roster working, and it lists the characters correctly. Now when I click on the character name, I'd like to show a profile of the character, with all the information.

In the roster_node_info hook, I've set has_title and has_body to FALSE for now. In the roster_view hook, I've done things as described in the node_example.module:

function roster_view($node, $teaser = FALSE, $page = FALSE) {
  $node = node_prepare($node, $teaser);
  $node->content['myfield'] = array(
    '#value' => theme('roster_character', $node),
    '#weight' => 1,
  );
  return $node;
}

Therefore I have a custom theme function like this:

function theme_roster_character($node) {
  $output = '<div>';
  $output .= t('The name of the character is %first_name %last_name.', array('%first_name' => check_plain($node->first_name), '%last_name' => check_plain($node->last_name)));
  $output .= '</div>';
  return $output;
}

Now what I'd like to do is to use the same procedure as in the roster page: use a template and the PHPTemplate engine. So, I've tried this:

function roster_theme() {
  return array(
    'roster' => array(
      'template' => 'roster',
      'arguments' => array('roster' => NULL, 'chars_per_page' => NULL),
    ),
    'roster_character' => array(
      'template' => 'roster-character',
      'arguments' => array('node' => NULL),
    ),
  );
}

And I've created the roster-character.tpl.php template with some basic output. The thing is that it does not work: it always goes for the theme_roster_character instead of the template, and I don't know how to tell it to act the same way as the roster page (see the other entry of the array in the roster_theme hook.

Any hints?

Thanks in advance.