jefklakscodex/themes/jefklak-creative-portfolio/layouts/partials/sidebar.html

<nav class="sidebar">
  <div class="sidebar-content sidebar-scrolling">
    <a name="menu" id="menu"></a>
    <h1 class="sidebar-heading"><a href="{{ .Site.BaseURL }}" title="{{ .Site.Title }} Home">{{ .Site.Title }}</a></h1>

    {{- $thumb := "" -}}
    {{- if .Params.image -}}
      {{- $thumb = .Params.image -}}
    {{- else -}}
      {{- if .Params.howlongtobeat_id -}}
        {{- $thumb = (printf "%scover.jpg" .Page.Permalink) -}}
      {{- end -}}
    {{- end -}}
    {{- if ne $thumb "" -}}
      <div class="sidebar-game-info">
        <p style="position: relative;">
        <img src="{{ $thumb | absURL }}" alt="game cover image" alt="game cover" class="img-responsive img-inactive" style="border: 1px solid black"/>
        {{- if ne .CurrentSection.Params.platform .Params.platform -}}
          {{- $platform := .CurrentSection.Title -}}
          {{- with .CurrentSection.Params.platform -}}
            <img src="/img/{{ lower . }}.jpg" alt="{{ $platform }}" alt="platform" class="sidebar-game-platform img-responsive"/>
            &nbsp;Played on: <a class="p-category" href="/games/{{ lower . }}">{{ $platform }}</a><br/>
          {{- end -}}
        {{- end -}}

        {{- with .Params.game_genre -}}
          {{- $tag := replaceRE `\s` "-" . -}}
          &nbsp;Genre: <a href="/tags/{{ $tag | lower }}">{{ . }}</a><br/>
        {{- end -}}
        {{- with .Params.game_release_year -}}
          &nbsp;Release year: {{ . }}<br/>
        {{- end -}}
        {{- with .Params.game_developer -}}
          &nbsp;Developer: <a href="https://www.mobygames.com/search/quick?sFilter=1&offset=0&q={{ . }}&p=-1&sC=on" target="_blank" rel="noopener" class="external">{{ . }}</a><br/>
        {{- end -}}
        {{- with .Params.howlongtobeat_id -}}
          &nbsp;<a href="https://howlongtobeat.com/game?id={{ . }}" target="_blank" rel="noopener" class="external">How long to beat</a>
        {{- end -}}
       {{- with .Params.howlongtobeat_hrs -}}
          : <code>{{ . }}</code> hr{{ if gt . 1}}s{{ end }}<br/>
        {{- end -}}
        </p>
      </div>
    {{- end -}}

    {{- $currRellink := substr .RelPermalink 0 -1 -}}
    {{- $currContent := .Content -}}
    {{- $backlinks := slice -}}
    {{- $forwardlinks := slice -}}
    {{- range (where (where .Site.Pages.ByDate.Reverse ".Section" "in" (slice "articles" "games")) ".Params.ignore" "!=" "true") -}}
        {{- $found := findRE $currRellink .Content 1 -}}
        {{- if $found -}}
          {{- $backlinks = $backlinks | append . -}}
        {{- else -}}
          {{- $rellink := substr .RelPermalink 0 -1 -}}
          {{- $found = findRE $rellink $currContent 1 -}}
          {{- if $found -}}
            {{- $forwardlinks = $forwardlinks | append . -}}
          {{- end -}}
        {{- end -}}
    {{- end -}}

    {{- $related := append $backlinks $forwardlinks -}}
    {{- if and .Params.Date $related -}}
      <div class="sidebar-header">
        <span>Related Posts</span>
        <img src="/img/gob_purse.gif" alt="related articles" />
      </div>

        <ul class="sidebar-menu">
        {{- range first 5 $related | uniq -}}
          <li>
            <a href="{{ .RelPermalink }}">{{ .Title }}</a><br/>
            <span class="sidebar-description">
              {{- if isset .Params "Description" -}}
                {{ .Description }}
              {{- else -}}
                {{ .Summary }}
              {{- end -}}
            </span>
          </li>
        {{- end -}}
      </ul>
      <hr/>
    {{- end -}}

    <div class="sidebar-header">
      <span>Recent Codex Entries</span>
      <img src="/img/gob_letter.gif" alt="latest articles" />
    </div>
    <ul class="sidebar-menu">
      {{- range first 5 (where (where .Site.Pages.ByDate.Reverse ".Section" "in" (slice "articles" "games")) ".Params.ignore" "!=" "true") -}}
          <li>
            <a href="{{ .RelPermalink }}">{{ .Title }}</a><br/>
            <span class="sidebar-description">
              {{- if .Description -}}
                {{ .Description }}
              {{- else if .Summary -}}
                {{ .Summary }}
              {{- else -}}
                A {{ .Params.game_genre }} game by {{ .Params.game_developer }} in {{ .Params.game_release_year }} that takes about {{ .Params.howlongtobeat_hrs }} hour(s) to beat.
              {{- end -}}
            </span>
          </li>
      {{- end -}}
    </ul>

    <div class="sidebar-header">
      <span>Looking For More?</span>
      <img src="/img/gob_waypoint.gif" alt="More information" />
    </div>
    <ul class="sidebar-menu">
      {{- range .Site.Params.navlinks -}}
        <li><a href="{{ .url }}">{{ .name }}</a></li>
      {{- end -}}
    </ul>


    <div class="copyright">
      <p class="credit">
        {{- with .Site.Params.copyright -}}
          {{ . | safeHTML }}
        {{- end -}}
      </p>
    </div>
  </div>
</nav>