UDungeonInteriorDatabase en

UDungeonInteriorDatabase Guide

UDungeonInteriorDatabase is the database used to spawn furniture, decoration, and vegetation by tag.
Use it when you want rooms to feel different from each other, or when only tagged rooms should receive extra furniture or plants.

What it manages

• Interior Parts
  Interior parts spawned as actors, such as furniture and decoration
• VegetationParts
  Vegetation-style decoration such as grass, vines, and foliage

Tag flow

Interior selection happens when tags returned from the room side match tags configured in the database.
The two main input sources are:

• ADungeonRoomSensorBase::GetInquireInteriorTags
• UDungeonInteriorLocationComponent::InquireInteriorTags

For example, if the room side returns library and an interior part in the database also has library, that furniture becomes a candidate.

Main properties

• Interior Parts
  • Actor class for furniture or decoration
  • System tags
  • Additional tags
  • Spawn frequency
  • Overlap check
  • Spawn method
• VegetationParts
  • Mesh for vegetation
  • Tags
  • Density
  • Slope conditions
  • Culling distance

Why Build is required

Interior Parts precompute actor bounding-box information when Build is run.
If you change furniture size or actor classes and skip Build, placement checks may still use outdated information.

Typical flow

1. Register furniture or decoration Blueprint / C++ actors in Interior Parts.
2. Register vegetation in VegetationParts if needed.
3. Return the tags you want to use from the room side or from DungeonInteriorLocationComponent.
4. Run Build.
5. Assign the asset to DungeonInteriorDatabase in UDungeonGenerateParameter.

Editing tips

• Start with broad tags such as start, goal, and hall. They are easier to manage.
• Add narrower tags such as kitchen or library later as the layout grows.
• Edit Interior Parts when you only want to swap furniture, and VegetationParts when you only want to change plants.

Read Next

• ADungeonRoomSensorBase.en.md
  Review how room events can provide interior tags.
• UDungeonGenerateParameter.en.md
  Review where this database is assigned in the main settings asset.

Related Pages

• ADungeonRoomSensorBase.en.md
• UDungeonGenerateParameter.en.md