starting work on enemy hearing

scripts/weapon_resource.gd

@@ -20,6 +20,8 @@ class_name weapon_resource
 @export var smoke_enabled : bool = false
 @export var bullet_force_mod = 5.0
 @export var bullet_speed = 600
+@export var decibels_of_gunfire_sound = 160.0
+@export var max_distance_heard = 100 #in meters
 @export_group("Gun Assets")
 @export var casing : Resource
 @export var mag : Resource