PlacementValidation3D

Read-only 3D placement validity policy seam. Runtime placement and development proof tooling consume this evaluator through one shared policy implementation. Everything here is static and side-effect free: callers supply explicit read-only state and receive typed reasons, per-cell evidence, and the resolved support facts used by preview/commit.

Source: addons/grid_placement/systems/building/3d/placement_validation_3d.gd

Syntax

class PlacementValidation3D extends RefCounted

Members

Name	Kind	Summary
reasons	Property	Typed rejection reasons for one placement attempt. Structured result of one validation attempt. Bitmask of [enum Reason] flags.
issues	Property	Human-readable aggregate issue strings, layered on [member reasons].
evidence	Property	Read-only evidence for preview/commit/diagnostic consumers.
cell_issues	Property	CELL-only projection: footprint cell -> blocking issue strings.
is_valid	Method
has_reason	Method
cell_issue_map	Method
grid	Property	Read-only context for one validation attempt.
settings	Property
world_3d	Property	Physics world used only when surface support mode opts into physics.
occupied	Property	Occupied cells: column key (Vector3i) -> bool/node.
families	Property	Column key -> family name for adjacent-snap checks.
world_registry	Property
preview_yaw_steps	Property
faces	Property
face_occupancy	Property
face_families	Property
edges	Property
corners	Property
validate_cell	Method
result	Property
cells	Property
profile	Property
occupy_columns	Property
min_surface	Property
max_surface	Property
missing_grid_ground	Property
cell_key	Property
occupied_issue	Property
surface	Property
support_mode	Property
use_grid_authority	Property
world_issue	Property
samples	Property
support	Property
has_physics_support	Property
ground_issue	Property
surface	Property
steep_issue	Property
conflict_cells	Property
first_conflict	Property
conflict	Property
conflict_issue	Property
partner_dirs	Property
snap_issue	Property
validate_cell_map	Method
validate_edge	Method
result	Property
edge_key	Property
profile	Property
cell_key	Property
family	Property
validate_face	Method
result	Property
face_key	Property
height_band	Property
occupancy_key	Property
profile	Property
family	Property
validate_corner	Method
result	Property
key	Property
profile	Property
settings	Property
settings	Property
topology	Property
candidates	Property
host	Property
x_neighbor	Property
z_neighbor	Property
x_cells	Property
z_cells	Property
x_yaw	Property
z_yaw	Property
node	Property
components	Property
instance	Property
mount	Property
has_compatible_neighbor	Method
compatible_neighbor_dirs	Method
dirs	Property
neighbor	Property
neighbor_key	Property
issue	Property