DIALOGUE

Doom level format
Things Linedefs Sidedefs Vertices Segs Subsectors Nodes Sectors Reject Blockmap
Extensions: ACS Behavior Leafs Lights Macros Floors
Source port extensions: Extended nodes FraggleScript ExtraData Dialogue Lightmap

DIALOGUE is a lump that contains conversation data for a Strife level in UDMF format. It should be ordered between the TEXTMAP and ENDMAP lumps, and like the former it can use plain text, but also the classic binary format. The text-based script must follow either the USDF (Universal Strife Dialogue Format) or ZSDF (ZDoom Strife Dialog Format) specifications.

Trivia

• Some level editors, such as Doom Builder 2, insist on adding DIALOGUE even if there is none, which explains why many UDMF levels contain an empty or null-byte lump.

Source

• This article incorporates text from the open-content ZDoom documentation project article DIALOGUE.