TowerGame/scripts/nav_obstacle.gd

extends Node3D
class_name NavObstable

@export var enabled: bool = false:
	set(val):
		if val != enabled:
			enabled = val
			update(enabled)
@export var aabb: AABB = AABB(Vector3(-1,0,-1),Vector3(2,2,2))
@export var weight: float = 10.0
@export var make_solid: bool = false

var updated_regions: Array[RID] = []

func _exit_tree() -> void:
	update(false)
	
func update(enable: bool) -> void:
	if !is_node_ready():
		await ready
	var global_aabb: AABB = global_transform * aabb
	#DebugDraw3D.draw_aabb(global_aabb, Color.DARK_CYAN, 5)
	for map_rid in NavigationServer3D.get_maps():
		for region_rid in NavigationServer3D.map_get_regions(map_rid):
			var region_aabb: AABB = NavigationServer3D.region_get_bounds(region_rid).grow(0.1)
			#DebugDraw3D.draw_aabb(region_aabb, Color.YELLOW, 5)
			if global_aabb.intersects(region_aabb):
				var old_weight: float = NavigationServer3D.region_get_travel_cost(region_rid)
				var new_weight: float = (old_weight * weight) if enable else (old_weight / weight)
				NavigationServer3D.region_set_travel_cost(region_rid, new_weight)
				if make_solid:
					NavigationServer3D.region_set_enabled(region_rid, enable)
				DebugDraw3D.draw_aabb(region_aabb, Color.RED if enable else Color.GREEN, 5)