Viewer-Interaction: Let a viewer challenge another to a duel

[Luzifer]

The rule uses a combination of a variable and a custom (timed) event to enable / cancel the duel. On accept the result is determined through a randInt d100 "dice"-roll…

    - uuid: 78d340e8-fa5b-42f7-bcf2-07063daa4aed
      description: 'Duel: Challenge'
      actions:
        # Store the challenger and therefore enable duelling
        - type: setvariable
          attributes:
            set: '{{ .username }}'
            variable: '{{ list "duel" .channel (lower (fixUsername (group 1))) | join ":" }}'
        # Tell the challenged what they need to do
        - type: respond
          attributes:
            message: |
                {{ mention (group 1) }} you've been challenged to a duel
                by {{ mention .username }} - Type !accept or !deny to
                respond within 1 minute
        # Create a custom event to clear the challenge
        - type: customevent
          attributes:
            fields: |-
                {{
                  dict
                    "type" "clear-duel"
                    "var" (list "duel" .channel (lower (fixUsername (group 1))) | join ":")
                    "challenged" (group 1)
                  | mustToJson
                }}
            schedule_in: 1m # How long should the challenge be active?
      user_cooldown: 5m0s # Prevent spam
      match_message: ^!duel @?([^\s]+)

    - uuid: 5dfaa0f9-436b-4bbb-92ef-269c37deeb35
      description: 'Duel: Clear Challenge'
      actions:
        # Do nothing of the variable is no longer set (challenge was executed)
        - type: stopexec
          attributes:
            when: '{{ eq (variable .var "") "" }}'
        # Notify the challenger the duel timed out
        - type: respond
          attributes:
            message: |-
                {{ mention .challenged }} chickened out, therefore I
                declare {{ mention (variable .var) }} as the winner
                of the duel!
        # Clear the variable and therefore end the duel
        - type: setvariable
          attributes:
            clear: true
            variable: '{{ .var }}'
      match_event: custom
      disable_on_template: '{{ ne .type "clear-duel" }}'

    - uuid: 3516859f-dfd4-4d6a-bac0-99e319fb3a19
      description: 'Duel: Respond'
      actions:
        # Retrieve the challenger
        - type: eventmod
          attributes:
            fields: |-
                {{
                  dict
                    "challenger" (variable (list "duel" .channel (lower (fixUsername .username)) | join ":") "")
                  | mustToJson
                }}
        # If there is no challenger, there is no challenge: Stop!
        - type: stopexec
          attributes:
            when: '{{ eq .challenger "" }}'
        # Get a random int and print the result of the challenge
        - type: respond
          attributes:
            message: |
                {{ if eq (group 1) "accept" }}
                {{ mention .username }} and {{ mention .challenger }}
                take their positions and on 3… 2… 1…
                {{ if gt (randInt 1 101) 50 }}
                {{ mention .username }} lands the wining hit! Congrats!
                {{- else -}}
                {{ mention .challenger }} leaves {{ mention .username }}
                no chance and wins! Congrats!
                {{- end -}}
                {{- else -}}
                {{ mention .username }} doesn't feel like duelling and
                silently backs up from the challenge
                {{- end -}}
        # Clear the variable and therefore end the duel
        - type: setvariable
          attributes:
            clear: true
            variable: '{{ list "duel" .channel (lower (fixUsername .username)) | join ":" }}'
      match_message: ^!(accept|deny)\b