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Restrict generated clam spots to visible sand

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This commit is contained in:
Alexander Sellite 2026-08-24 13:51:11 -04:00
parent 4dc87235ec
commit 966968e54d
2 changed files with 74 additions and 1 deletions
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19
world/digging/diggable_area_3d.gd
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@ -18,7 +18,7 @@ func get_surface_triangles() -> Array[PackedVector3Array]:
var terrain_root: Node = get_node_or_null(terrain_source)
if terrain_root == null:
return triangles
for mesh_instance: MeshInstance3D in _collect_mesh_instances(terrain_root):
for mesh_instance: MeshInstance3D in _terrain_mesh_instances(terrain_root):
var mesh: Mesh = mesh_instance.mesh
if mesh == null:
continue
@ -92,6 +92,23 @@ func _append_triangle(
result.append(PackedVector3Array([a, b, c]))
func _terrain_mesh_instances(terrain_root: Node) -> Array[MeshInstance3D]:
# Generated terrain can contain authored base layers beneath raised visual
# overlays. Those meshes are useful for closing terrain seams, but they are
# not necessarily the visible surface and must not produce buried dig spots.
# A terrain provider may therefore expose its authoritative primary meshes.
if terrain_root.has_method(&"get_primary_terrain_meshes"):
var provided: Variant = terrain_root.call(&"get_primary_terrain_meshes")
var meshes: Array[MeshInstance3D] = []
if provided is Array:
for value: Variant in provided:
var mesh_instance := value as MeshInstance3D
if mesh_instance != null:
meshes.append(mesh_instance)
return meshes
return _collect_mesh_instances(terrain_root)
func _collect_mesh_instances(root: Node) -> Array[MeshInstance3D]:
var meshes: Array[MeshInstance3D] = []
if root is MeshInstance3D: