**Language / Langue :** [[fr:yaml:hud|FR]] | **EN**

====== HUD - Persistent Panels (YAML) ======

HUD panels (''hud:'') display persistent information on the player screen: HP, score, mini-map, countdown, and so on.

HUD panels are visible on web and desktop. On Discord and terminal they are ignored; essential information should also appear in narrative text.

===== Positions =====

  * ''top'', ''bottom'', ''left'', ''right''
  * ''top-left'', ''top-right'', ''bottom-left'', ''bottom-right''

===== Base Syntax =====

<code yaml>
rooms:
  - id: fight_room
    hud:
      position: top-right
      text: |
        HP: v_hp_v / v_hpmax_v
        Score: v_score_v
    events:
      - if: ~
        do: "hp.-.3"
        button: "Lose 3 HP"
        text: "Ouch!"
        hud:
          position: top-right
          text: "HP: v_hp_v / v_hpmax_v"
</code>

===== Size =====

''size:'' sets the height as a percentage of the game area. ''width:'' and ''height:'' give explicit percentages when you need full control.

===== Style =====

<code yaml>
hud:
  position: top-right
  size: 38
  background: "#1a1a2e"
  text-color: "#e0e0ff"
  text: "Styled HUD"
</code>

===== Conditional Text =====

<code yaml>
hud:
  position: top-right
  text:
    - if: "v_hp_v <= 0"
      text: "DEAD"
    - if: "v_hp_v <= 3"
      text: "CRITICAL! HP: v_hp_v"
    - text: "HP: v_hp_v / v_hpmax_v"
</code>

===== Split =====

''%%[[split]]%%'' divides the panel into two zones.

<code yaml>
hud:
  position: left
  width: 28
  text: |
    Current zone
    demo_split
    [[split]]
    HP: v_hp_v
    Score: v_score_v
</code>

===== Several panels at once =====

<code yaml>
hud:
  - position: top-left
    text: "❤️ v_hp_v HP"
  - position: top-right
    text: "⭐ v_score_v pts"
  - position: bottom-right
    text: "📍 Area: v_area_v"
</code>


===== Clear HUD =====

<code yaml>
clear-hud:
  - all
  - top-right
</code>

===== Video inside a HUD =====

The video syntax can be used inside the text of a panel:

<code yaml>
hud:
  position: top
  text:
    - "((loop;muted:https://example.com/video.mp4))"
</code>

A hosted video works here too. See [[en:yaml:medias|Sounds, images and videos]].