@startuml
class Section {
    name: str
    altitude: Decimal
}

class Source {
    name: str
    bottom: Decimal
    left: Decimal
    top: Decimal
    right: Decimal
    image: file
}

abstract class GeometryMixin {
    geometry:
}

abstract class SectionGeometryMixin {
}
GeometryMixin <|-- SectionGeometryMixin
Section "1" *-- "*" SectionGeometryMixin: section

class Building {
    geometry: polygon
}
SectionGeometryMixin <|-- Building

class Category << (E,#FF7700) >> {
    <i>empty string</i>
    stairs
    escalator
    elevator
}

class Level << (E,#FF7700) >> {
    <i>empty string</i>
    upper
    lower
}

class Space {
    geometry: polygon
    public: bool
}
SectionGeometryMixin <|-- Space
Category "1" <-- Space: category
Level "1" <-- Space: level

class Door {
    geometry: polygon
}
SectionGeometryMixin <|-- Door
Level "1" <-- Door: level

class Hole {
    geometry: polygon
}
SectionGeometryMixin <|-- Hole

abstract class SpaceGeometryMixin {
}
GeometryMixin <|-- SpaceGeometryMixin
Space "1" *-- "*" SpaceGeometryMixin: space

class Area {
    geometry: polygon
}
SpaceGeometryMixin <|-- Area

class Point {
    geometry: point
}
SpaceGeometryMixin <|-- Point

class Stair {
    geometry: linestring
}
SpaceGeometryMixin <|-- Stair

class Obstacle {
    geometry: polygon
}
SpaceGeometryMixin <|-- Obstacle

class LineObstacle {
    geometry: linestring
}
SpaceGeometryMixin <|-- LineObstacle

abstract class Location {
    titles: dict
    public: bool
    can_search: bool
    can_describe: bool
    color: str
}

abstract class SpecificLocation {

}
SpecificLocation --|> Location
Section --|> SpecificLocation
Space --|> SpecificLocation
Area --|> SpecificLocation
Point --|> SpecificLocation

class LocationGroup {
    compiled_room: bool
    compiled_area: bool
}
LocationGroup --|> Location
SpecificLocation "*" --o "*" LocationGroup: groups

class LocationSlug {
    slug: str
}

Location "1" -- "1" LocationSlug

class GraphNode {
    x: int
    y: int
    transfer: bool
    desc: json
}
Space "1" *-- "*" GraphNode: space

class GraphLine {
    category: str
}
GraphNode "1" *-- "*" GraphLine: start
GraphNode "1" *-- "*" GraphLine: end

hide methods

@enduml