Implemented R-Tree

Would like to switch the identifer of the hole to a random string.

demo/assets/scripts/environment/destructable/destructable_wall.gd

@@ -13,15 +13,32 @@ enum ExtrudeDirection {
 @export var extrusion_direction: ExtrudeDirection
 @export var depth: float = 0.1
 @export var depth_position_offset: Vector3 = Vector3.ZERO
-
+@export_category("User Defined Values")
 @export var edge_non_fracture: float = 0.1
-@onready var parentNode = get_node("..")
+
+var parentNode
+var inner_rtree: RectangleTree
 
 var outer_polygon: PackedVector2Array
-var inner_polygons: Array[PackedVector2Array]
+var inner_polygons: Holes
 
 var static_body: StaticBody3D
 
+func _ready() -> void:
+	if Engine.is_editor_hint():
+		return
+	
+	parentNode = get_node("..")
+	inner_polygons = Holes.new()
+	inner_rtree = RectangleTree.new()
+	outer_polygon = verts2d
+	_draw()
+
+func _exit_tree() -> void:
+	if Engine.is_editor_hint():
+		return
+	inner_rtree.free()
+
 func _func_godot_apply_properties(entity_properties: Dictionary) -> void:
 	meshInstance3d = _find_mesh_body()
 	var verticies = meshInstance3d.mesh.surface_get_arrays(0)[Mesh.ARRAY_VERTEX]
@@ -75,20 +92,12 @@ func _func_godot_apply_properties(entity_properties: Dictionary) -> void:
 	var outer_boudary = Geometry2D.convex_hull(verts_2d)
 	verts2d = outer_boudary
 
-func _ready() -> void:
-	if Engine.is_editor_hint():
-		return
-	
-	outer_polygon = verts2d
-	_draw()
-
 func _draw():
-	var vector_indexes = GeoPolyTriangulization.triangulate(outer_polygon, inner_polygons)
+	var vector_indexes = GeoPolyTriangulization.triangulate(outer_polygon, inner_polygons.get_holes())
 	var vectors = []
 	
 	vectors.append_array(outer_polygon)
-	for ip in inner_polygons:
-		vectors.append_array(ip)
+	vectors.append_array(inner_polygons.get_hole_verticies())
 	
 	var meshGenerator = GeoPolyMesh.new(vector_indexes, vectors, extrusion_direction, depth)
 	var commited_mesh = meshGenerator.commit_mesh(meshInstance3d.get_active_material(0))
@@ -101,24 +110,29 @@ func _draw():
 	static_body = _find_static_body()
 
 func _re_draw():
-	meshInstance3d.remove_child(static_body)
-	static_body.queue_free()
-	
-	var vector_indexes = GeoPolyTriangulization.triangulate(outer_polygon, inner_polygons)
+	var vector_indexes = GeoPolyTriangulization.triangulate(outer_polygon, inner_polygons.get_holes())
 	var vectors = []
 	
 	vectors.append_array(outer_polygon)
-	for ip in inner_polygons:
-		vectors.append_array(ip)
+	vectors.append_array(inner_polygons.get_hole_verticies())
+	WorkerThreadPool.add_task(_generate_mesh.bind(vector_indexes, vectors))
+
+func _deffered_draw(mesh: Mesh, task_id: int):
+	if task_id:
+		WorkerThreadPool.wait_for_task_completion(task_id)
 	
+	meshInstance3d.remove_child(static_body)
+	static_body.queue_free()
+	meshInstance3d.mesh = mesh
+	meshInstance3d.create_trimesh_collision()
+	static_body = _find_static_body()
+
+func _generate_mesh(vector_indexes: PackedInt32Array, vectors: PackedVector2Array):
 	var meshGenerator = GeoPolyMesh.new(vector_indexes, vectors, extrusion_direction, depth)
 	var commited_mesh = meshGenerator.commit_mesh(meshInstance3d.get_active_material(0))
 	meshGenerator.free()
 	
-	meshInstance3d.mesh = commited_mesh
-	meshInstance3d.create_trimesh_collision()
-	static_body = _find_static_body()
-
+	self.call_deferred("_deffered_draw", commited_mesh, WorkerThreadPool.get_caller_task_id())
 
 func hit(position: Vector3):
 	var cutter = Cutter.circleCutter()
@@ -134,13 +148,18 @@ func hit(position: Vector3):
 	
 	# translate the cutter
 	var hole_vectors = Transform2D(0, hole_vector2_offset) * cutter
-	var draw = _add_hole(hole_vectors)
+	
+	var rtree_search = []
+	for hv in hole_vectors:
+		rtree_search.append_array(inner_rtree.query(hv))
+	
+	var draw = _add_hole(hole_vectors, rtree_search)
 	
 	if draw:
 		_re_draw()
 
-func _add_hole(new_hole: PackedVector2Array) -> bool:
-	var values_to_remove = []
+func _add_hole(new_hole: PackedVector2Array, holes_id: PackedInt32Array) -> bool:
+	var ids_to_remove = []
 	
 	# validate that the hole is valid
 	var boundary_polygon = Geometry2D.offset_polygon(outer_polygon, -edge_non_fracture)
@@ -150,24 +169,28 @@ func _add_hole(new_hole: PackedVector2Array) -> bool:
 		return false
 
 	var merged: PackedVector2Array = boundary_hole[0]
-	for index in range(len(self.inner_polygons)):
-		var result = Geometry2D.merge_polygons(merged, self.inner_polygons[index])
+	
+	for id in holes_id:
+		var result = Geometry2D.merge_polygons(merged, inner_polygons.get_hole(id).vectors)
 		
 		if len(result) == 1:
 			merged = result[0]
-			values_to_remove.append(self.inner_polygons[index])
+			ids_to_remove.append(id)
 		elif len(result) > 1:
 			# need to check that they have no overlapping area if they do clip
 			var overlap = Geometry2D.intersect_polygons(result[0], result[1])
 			
 			if len(overlap) != 0:
 				merged = Geometry2D.clip_polygons(result[0], result[1])[0]
-				values_to_remove.append(self.inner_polygons[index])
+				ids_to_remove.append(id)
 	
-	for i in values_to_remove:
-		inner_polygons.erase(i)
+	for id in ids_to_remove:
+		inner_rtree.remove(id)
+		inner_polygons.remove_hole(id)
 	
-	inner_polygons.append(merged)
+	var hole = inner_polygons.add_hole(merged)
+	var bound_rect = UTIL.get_bounding_rect(merged)
+	inner_rtree.add(bound_rect.position, bound_rect.end, hole.hole_id)
 	
 	return true
 

demo/assets/scripts/environment/destructable/holes.gd

@@ -0,0 +1,34 @@
+extends RefCounted
+
+class_name Holes
+
+var holes: Dictionary[int, Hole]
+var counter: int = 0
+
+func _init() -> void:
+	self.holes = {}
+
+func add_hole(vectors: PackedVector2Array) -> Hole:
+	var hole = Hole.new(counter, vectors)
+	self.holes[counter] = hole
+	counter += 1
+	
+	return hole
+
+func remove_hole(hole_id: int):
+	self.holes.erase(hole_id)
+
+func get_hole(hole_id: int) -> Hole:
+	return self.holes[hole_id]
+
+func get_hole_verticies() -> PackedVector2Array:
+	var return_val: PackedVector2Array = []
+	for hole in holes.values():
+		return_val.append_array(hole.vectors)
+	return return_val
+
+func get_holes() -> Array[PackedVector2Array]:
+	var return_val: Array[PackedVector2Array] = []
+	for hole in holes.values():
+		return_val.append(hole.vectors)
+	return return_val

demo/assets/scripts/environment/destructable/holes.gd.uid

@@ -0,0 +1 @@
+uid://dt73l1q8fgdyo

demo/assets/scripts/environment/destructable/resource/hole.gd

@@ -0,0 +1,10 @@
+extends Resource
+
+class_name Hole
+
+var hole_id: int
+var vectors: PackedVector2Array
+
+func _init(hole_id: int, vectors: PackedVector2Array):
+	self.hole_id = hole_id
+	self.vectors = vectors

demo/assets/scripts/environment/destructable/resource/hole.gd.uid

@@ -0,0 +1 @@
+uid://cqtnb878sls4b

demo/assets/scripts/environment/destructable/util.gd

@@ -14,3 +14,14 @@ static func chunk_array(arr: Array, chunk_size: int) -> Array:
 
 static func vector2_to_vector3(v: Vector2) -> Vector3:
 	return Vector3(v.x, v.y, 0)
+
+static func get_bounding_rect(vectors: PackedVector2Array) -> Rect2:
+	if vectors.is_empty():
+		return Rect2()
+		
+	var rect := Rect2(vectors[0], Vector2.ZERO) # Initialize with the first point
+	for point in vectors:
+		rect = rect.expand(point)
+		
+	# The 'position' of the Rect2 will be the minimum corner
+	return rect