feat: author discoverable forest edge

world/jajce/RiverbankResourceCluster.gd

@@ -1,5 +1,5 @@
 class_name RiverbankResourceCluster
-extends Node3D
+extends TerrainResourceCluster
 
 const FERN_OFFSETS := [
 	Vector3(-0.8, 0.0, -10.8),
@@ -36,75 +36,6 @@ const STONE_OFFSETS := [
 	Vector3(2.7, 0.0, 11.2),
 ]
 
-@export var terrain_path := NodePath("../../../TerrainRoot/Terrain3D")
-
-var terrain: Terrain3D
-
-
-func _ready() -> void:
-	call_deferred("_initialize_cluster")
-
-
-func get_resource_anchors() -> Array[ResourceNode]:
-	var anchors: Array[ResourceNode] = []
-	for child in $ResourceAnchors.get_children():
-		if child is ResourceNode:
-			anchors.append(child)
-	return anchors
-
-
-func get_presentation_stats() -> Dictionary:
-	var understory_instances := 0
-	var multimesh_batches := 0
-	for child in $DecorativeInstances/Understory.get_children():
-		var instance := child as MultiMeshInstance3D
-		if instance == null or instance.multimesh == null:
-			continue
-		understory_instances += instance.multimesh.instance_count
-		multimesh_batches += 1
-	return {
-		"understory_instance_count": understory_instances,
-		"multimesh_batch_count": multimesh_batches,
-		"decorative_tree_count": $DecorativeInstances/Trees.get_child_count(),
-		"resource_anchor_count": get_resource_anchors().size(),
-	}
-
-
-func _initialize_cluster() -> void:
-	terrain = get_node_or_null(terrain_path) as Terrain3D
-	if terrain == null:
-		push_warning("RiverbankResourceCluster: Terrain3D is unavailable")
-		return
-	_snap_authored_children($DecorativeInstances/Trees)
-	for anchor in get_resource_anchors():
-		_snap_resource_anchor(anchor)
-	_build_understory()
-
-
-func _snap_authored_children(parent: Node) -> void:
-	for child in parent.get_children():
-		if child is Node3D:
-			_snap_to_terrain(child)
-
-
-func _snap_to_terrain(node: Node3D) -> void:
-	var position := node.global_position
-	var height := terrain.data.get_height(position)
-	if not is_nan(height):
-		node.global_position.y = height
-
-
-func _snap_resource_anchor(anchor: ResourceNode) -> void:
-	var anchor_position := anchor.global_position
-	var anchor_height := terrain.data.get_height(anchor_position)
-	if is_nan(anchor_height):
-		return
-	var interaction_position := anchor.global_transform * anchor.interaction_point.position
-	var interaction_height := terrain.data.get_height(interaction_position)
-	if not is_nan(interaction_height):
-		anchor.interaction_point.position.y = interaction_height - anchor_height + 0.05
-	anchor.global_position.y = anchor_height
-
 
 func _build_understory() -> void:
 	var fern_material := StandardMaterial3D.new()
@@ -148,63 +79,3 @@ func _build_understory() -> void:
 		Vector3(0.62, 0.24, 0.44),
 		0.22
 	)
-
-
-func _assign_multimesh(
-	target: MultiMeshInstance3D,
-	mesh: Mesh,
-	offsets: Array,
-	base_scale: Vector3,
-	vertical_offset: float
-) -> void:
-	var multimesh := MultiMesh.new()
-	multimesh.transform_format = MultiMesh.TRANSFORM_3D
-	multimesh.mesh = mesh
-	multimesh.instance_count = offsets.size()
-	for index in offsets.size():
-		var offset: Vector3 = offsets[index]
-		var world_sample := to_global(offset)
-		var height := terrain.data.get_height(world_sample)
-		if is_nan(height):
-			height = global_position.y
-		var local_position := to_local(Vector3(world_sample.x, height, world_sample.z))
-		local_position.y += vertical_offset
-		var scale_variation := 0.84 + float((index * 37) % 5) * 0.07
-		var rotation := deg_to_rad(float((index * 53) % 360))
-		var basis := Basis(Vector3.UP, rotation).scaled(base_scale * scale_variation)
-		multimesh.set_instance_transform(index, Transform3D(basis, local_position))
-	target.multimesh = multimesh
-
-
-func _create_fern_mesh(material: Material) -> ArrayMesh:
-	var vertices := PackedVector3Array()
-	var normals := PackedVector3Array()
-	var uvs := PackedVector2Array()
-	for frond_index in 5:
-		var angle := float(frond_index) / 5.0 * TAU + 0.3
-		var direction := Vector3(cos(angle), 0.0, sin(angle))
-		var side := Vector3(-direction.z, 0.0, direction.x) * 0.16
-		var base := Vector3(0.0, 0.02, 0.0)
-		var middle := direction * 0.38 + Vector3.UP * 0.14
-		var tip := direction * 0.82 + Vector3.UP * 0.24
-		vertices.append_array([base, middle + side, tip, base, tip, middle - side])
-		for _vertex in 6:
-			normals.append(Vector3.UP)
-		for uv in [
-			Vector2(0.5, 0.0),
-			Vector2(1.0, 0.5),
-			Vector2(0.5, 1.0),
-			Vector2(0.5, 0.0),
-			Vector2(0.5, 1.0),
-			Vector2(0.0, 0.5),
-		]:
-			uvs.append(uv)
-	var arrays := []
-	arrays.resize(Mesh.ARRAY_MAX)
-	arrays[Mesh.ARRAY_VERTEX] = vertices
-	arrays[Mesh.ARRAY_NORMAL] = normals
-	arrays[Mesh.ARRAY_TEX_UV] = uvs
-	var mesh := ArrayMesh.new()
-	mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, arrays)
-	mesh.surface_set_material(0, material)
-	return mesh