ObjectMountRegistry3D

Local GRID mount projection of ObjectPlacementService3D: which committed node holds each column, edge, corner, face, and top socket, and the mount each node was placed on. The PlacementWorldRegistry stays the shared authority; this is the service's fast per-socket index of it. Validation reads these maps through PlacementValidation3D.PlacementValidationContext3D.mounts. Every mutation bumps revision so cached validation can tell the state changed.

Source: addons/grid_placement/systems/building/3d/object_mount_registry_3d.gd

Syntax

class ObjectMountRegistry3D extends RefCounted

Members

Name	Kind	Summary
node	Property	Everything the registry holds for one node, captured before a move or removal so it can be put back exactly.
had_projection	Property	True when the node held any socket or mount record.
occupied	Property
families	Property
overlay_cells	Property
overlay_indices	Property	Index the node held in each overlay_cells overlay stack, or -1 when unknown. Absent on a projection built before this field existed.
edges	Property
edge_families	Property
corners	Property
faces	Property
face_occupancy	Property
tops	Property
top_families	Property
top_indices	Property	Index the node held in each tops TOP stack, or -1 when unknown. A mid-stack node (a story wall under roofs) must come back at its own index, not as the head. Absent on a projection built before this field.
placed	Property
placement_record	Property
occupied	Property	Cell key (the piece's OWN storey, so two storeys of one column both fit) -> occupying CELL node, and its snap family. Keys carry `y`: a room on storey 1 books the cells at `y = 1`, which is what lets one entry be placed on the ground and again above itself. Attachments stay storey-agnostic and read a column through occupant_in_column().
families	Property	Cell key -> snap family of the occupying CELL node.
overlay_nodes	Property	Column key -> Array of the non-occupying CELL overlays stacked on it.
placed_nodes	Property
edges	Property	Edge key -> mounted node, and its snap family.
edge_families	Property
corners	Property	Corner key -> mounted node.
faces	Property	Face key -> providing node and its family, rebuilt from the records.
face_families	Property
face_occupancy	Property	Face occupancy key (face + height band) -> mounted node.
tops	Property	Top key -> head of the stack mounted there, and its family.
top_families	Property
top_stacks	Property	Top key -> bottom-to-top Array of mounted nodes (story walls under roofs).
placement_records	Property	Node -> the PlacementMount it was placed on.
revision	Property	Incremented by every mutation.
mount_of	Method
apply	Method
occupant_at	Method
occupant_in_column	Method
family_in_column	Method
remove	Method
capture	Method
restore	Method
push_top	Method
stack	Property
head	Property
pop_top	Method
add_overlay	Method
has_face_dependents	Method
has_top_dependents	Method
has_live_dependents	Method
mount	Property
edge_key	Property
profile	Property
yaw_steps	Property
provider_faces	Property
provider	Property
settings	Property
carried_transform	Property
corner_mount	Property
profile	Property
hosted_without	Property
provider	Property
edge_node	Property
mount	Property
entry	Property
hosted_without	Property
provider	Property
mount	Property
entry	Property
hosted_without	Property
provider	Property
mount	Property
entry	Property
hosted_without	Property
prune_invalid	Method
clear	Method
snapshot	Method
restore_from	Method