Proper firing logic handling

base/scripts/weapons/fire_mode/auto_fire_mode.gd

@@ -24,6 +24,8 @@ func _process() -> void:
 	if _fire():
 		on_fire()
 
+func _on_fire_end() -> void:
+	fire_allowed.emit()
 
 ## Invoked when cooldown has ended
 func on_cooldown_timeout() -> void:

base/scripts/weapons/fire_mode/base_fire_mode.gd

@@ -7,6 +7,9 @@ class_name BaseFireMode
 var barrel : Barrel
 var tree : SceneTree
 
+## Emits when it's possible to request fire from outside
+signal fire_allowed
+
 func _init() -> void:
 	resource_local_to_scene = true
 

base/scripts/weapons/fire_mode/single_fire_mode.gd

@@ -26,3 +26,4 @@ func _on_fire_begin() -> void:
 ## Invoked when cooldown has ended
 func on_cooldown_timeout() -> void:
 	cooldown = false
+	fire_allowed.emit()