Table of Contents

Class TerrainPreview

Namespace
GridPlacement.GDScript
Assembly
MoonBark.GridPlacement.GDScript.dll

Ghost preview for terrain painting: shows the selected terrain's tile at the hovered cell while the placement system is in TERRAIN mode.\n\nImplemented as a one-cell TileMapLayer that mirrors the target map's TileSet and global transform, so square and isometric layouts render identically to the real paint result. The ghost look comes from [member preview_self_modulate] (default: subtle ghost blue).\n\nAdd one inside the PlacementInjectorSystem's injection scope (e.g. under World). It tracks the positioner each frame while visible and repaints only when the hovered cell or selected terrain changes.

class TerrainPreview extends PlacementNode2D
TerrainPreview

Properties

preview_self_modulate

Ghost tint applied to the preview layer (self_modulate so child nodes, if any are ever added, keep their own colors).

@export var preview_self_modulate: Color = Color(0.6, 0.8, 1.0, 0.6)

active 

var active = p_mode == PlacementSystem.BuildMode.TERRAIN

target_map 

var target_map: TileMapLayer = _targeting_state.target_map if _targeting_state != null else null

positioner 

var positioner: Node2D = _targeting_state.positioner if _targeting_state != null else null

terrain_name 

var terrain_name: StringName = _building_system.selected_terrain_name if _building_system != null else StringName()

preview_cells 

var preview_cells: Array[Vector2i] = []

cell_count 

var cell_count: int = preview_cells.size()

last_cell 

var last_cell: Vector2i = preview_cells[-1] if not preview_cells.is_empty() else Vector2i.MAX

brush_shape 

var brush_shape: int = _building_system.get_current_brush_shape() if _building_system else -1

drag_start 

var drag_start: Vector2i = _building_system.get_brush_drag_start() if _building_system else Vector2i.ZERO

drag_active 

var drag_active: bool = _building_system.is_brush_drag_active() if _building_system else false

pending_active 

var pending_active: bool = _building_system.is_pending_active() if _building_system else false

valid_cells 

var valid_cells: Array[Vector2i] = []

invalid_cells 

var invalid_cells: Array[Vector2i] = []

entry 

var entry: TilePlacementEntry = _building_system.selected_terrain_entry if _building_system else null

palette 

var palette: TerrainPalette = _building_system.selected_terrain_palette if _building_system else null

issue_map 

var issue_map: Dictionary = {}

target_modulate 

var target_modulate = preview_self_modulate

invalid_modulate 

var invalid_modulate = Color(1.0, 0.3, 0.3, 0.7)

valid_cells 

var valid_cells: Array[Vector2i] = []

invalid_cells 

var invalid_cells: Array[Vector2i] = []

entry 

var entry: TilePlacementEntry = _building_system.selected_terrain_entry if _building_system else null

palette 

var palette: TerrainPalette = _building_system.selected_terrain_palette if _building_system else null

issues 

var issues: Array[String] = []

resolved 

var resolved = TerrainTilePainter.resolve_terrain_by_name(p_target_map.tile_set, p_terrain_name)

preview_tileset 

var preview_tileset = p_target_map.tile_set.duplicate() as TileSet

Methods

resolve_placement_dependencies 

func resolve_placement_dependencies(p_container: PlacementContainer) -> void:

Parameters

p_container

Returns