This unreleased Grid Placement API reference is generated from addons/grid_placement during active development. It covers 238 public GDScript classes across 18 source categories. Class names, methods, and behavior may change before the final release — use this as a preview of what's coming, not as a stable integration target.
Addon Root
addons/grid_placement
Base
addons/grid_placement/base
- PlacementButton
- PlacementCachedShapeCast2D
- PlacementControl
- PlacementNode2D
- PlacementNode3D
- PlacementResource
- PlacementSystemsComponent
Components
addons/grid_placement/components
Context
addons/grid_placement/context
Debug
addons/grid_placement/debug
Logging
addons/grid_placement/logging
Migration
addons/grid_placement/migration
Mode
addons/grid_placement/mode
Placeables
addons/grid_placement/placeables
Placement
addons/grid_placement/placement
- AdjacencyEvaluator
- AdjacencyRequiredRule
- AdjacentToCategoryRule
- CollisionGeometryCalculator
- CollisionMapper2D
- CollisionObjectResolver2D
- CollisionProcessor2D
- CollisionRuleSettings
- CollisionsCheckRule
- CollisionTestSetup2D
- CollisionUtilities2D
- ExistingCellRule
- IndicatorFactory2D
- IndicatorManager
- IndicatorManager3D
- IndicatorService2D
- IndicatorSetupReport
- IndicatorSetupUtils
- IndicatorVisualSettings
- ManipulatableSettings
- NodeLocator
- NodeSearchLogic
- PlacementCommand
- PlacementCommitAttempt
- PlacementCostProvider
- PlacementEntry
- PlacementIssue
- PlacementLifecycleAllocator
- PlacementLifecycleBus
- PlacementLifecycleResult
- PlacementProfile
- PlacementReport
- PlacementRule
- PlacementRuleResolver
- PlacementRuleValidationLogic
- PlacementRuntime
- PlacementSnapProfile3D
- PlacementValidationContext
- PlacementValidationPipeline
- PlacementValidationResult
- PlacementValidator
- PlacementWorldFactsProvider2D
- PolygonIndicatorHeuristics
- PolygonTileMapper
- ProviderCellBlockRule2D
- RectCollisionTestingSetup
- RuleCheckIndicator2D
- RuleCheckIndicator3D
- RuleCheckIndicatorLogic
- RuleResult
- ScenePlacementEntry
- SpendByIdRule
- SpendCostRuleBase
- SpendMaterialsRuleById
- TerrainCatalogFilter
- TerrainDemolishData
- TerrainPaintData
- TerrainPalette
- TerrainPersistence
- TerrainSaveData
- TileCheckRule
- TilePaintCollisionRule
- TilePaintRule
- TilePlacementEntry
- ValidationResults
- ValidPlacementRuleSettings
- ValidPlacementTileRule
- WithinTilemapBoundsRule
Resources
addons/grid_placement/resources
- ActionLogSettings
- BuildCost
- GridPlacementBundle
- GridPlacementSettings
- PlacementActionNames
- PlacementActions
- PlacementCatalog
- PlacementPresentationProfile3D
- PlacementSession
- PlacementStates
- PlacementTemplates
- PlacementVisualSettings
Services
addons/grid_placement/services
- BrushServiceContract
- DragService
- DragServiceDependencies
- IdRegistry
- ManipulationServiceContract
- ObjectPlacementService
- PlacementInstantiatorService
- PlacementIntentScheduler
- PlacementServiceGroup
- PlacementServiceGroupFactory
- PlacementSessionRegistration
- PlacementSessionRegistry
- PlacementWorldRecord
- PlacementWorldRegistry
- PlacementWorldRestoreCoordinator
- PlacementWorldRestoreCoordinator2D
- PlacementWorldRestoreCoordinator3D
- SmoothOccupancyRegistry
- SmoothOccupancyRegistry2D
- SmoothOccupancyRegistry3D
- SmoothPlacementService
- SmoothPlacementService3D
- SmoothSocketRegistry3D
- SmoothSocketResolver3D
- TargetHighlighterService
- TargetingServiceContract
- TerrainServiceContract
Systems
addons/grid_placement/systems
- BrushCoordinator
- BrushShapeGenerator
- BrushState
- CursorScreenResolver
- DemolishData
- Dimensions
- DragPathData
- FaceMountResolver3D
- GridCellRaycaster3D
- GridPlacementHost
- GridPositioner2D
- GridPositioner3D
- GridTargetingService
- GridTargetingService3D
- GridTargetingSettings
- GridTargetingState
- HighlightSettings
- HostDependencyHealth
- HostDispatchResult
- ManipulationData
- ManipulationParent
- ManipulationParent3D
- ManipulationService2D
- ManipulationService3D
- ManipulationSettings
- ManipulationState
- MouseEventVisibilityResult
- MoveValidation3D
- ObjectDragShapePreview
- ObjectFillSpan3D
- ObjectMountRegistry3D
- ObjectPlacementGeometry3D
- ObjectPlacementGhostTint3D
- ObjectPlacementPreviewSlots3D
- ObjectPlacementService3D
- ObjectPlacementSettings3D
- ObjectPlacementSpanGhosts3D
- ObjectSurfaceMountRegistry2D
- ObjectSurfaceValidation2D
- PlacementActionData
- PlacementAStarPathManager
- PlacementBuildOrchestrator
- PlacementContactRing3D
- PlacementInputHandler
- PlacementInputHandler3D
- PlacementMount
- PlacementMount2D
- PlacementMouseInputStatus
- PlacementPreviewTransform
- PlacementSettings
- PlacementState
- PlacementValidation3D
- PlaceModeMachine
- PositionerPolicy
- PositionerUIPolicy
- PreviewBuilder
- PreviewFactory
- RefundCalculator
- Refunder
- RefundService
- SmoothPlacementCoordinator
- SurfaceSupportEvaluator3D
- SurfaceSupportSampler3D
- TargetHighlight3D
- TargetingShapeCast2D
- TerrainBrushContext
- TerrainLayerRouting
- TerrainPlacementService2D
- TerrainPlacementService3D
- TerrainPreview
- TerrainTilePainter
Telemetry
addons/grid_placement/telemetry
UI
addons/grid_placement/ui
- BrushShapeBar
- BuildPanel
- ModeSwitchBar
- PlaceableList
- PlaceableListEntry
- PlaceableSelectionLogic
- PlaceableSelectionUI
- PlaceableUIInteraction
- PlaceableView
- PlacementActionButton
- PlacementActionLog
- PlaceRouterUI
- SelectionEntryViewBase
- TargetInformer
- TargetInfoSettings
- TerrainPaletteEntryView
- TerrainPaletteUI
User
addons/grid_placement/user
Utils
addons/grid_placement/utils
- CollisionGeometryUtils
- DefaultInputActionsHelper
- PhysicsMatchingUtils2D
- PlacementAssetResolver
- PlacementDiagnostics
- PlacementGeometryMath
- PlacementGeometryUtils
- PlacementGridRotationUtils
- PlacementGridRotationUtils3D
- PlacementManipulationCopyUtils
- PlacementObjectUtils
- PlacementPositioning2DUtils
- PlacementPositioning3DUtils
- PlacementSearchUtils
- PlacementString
- PlacementValidation
Validation
addons/grid_placement/validation