You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
## The blackboard is an object that can be used to store and access data between
|
|
|
|
|
## multiple nodes of the behavior tree.
|
|
|
|
|
@icon("icons/blackboard.svg")
|
|
|
|
|
class_name Blackboard
|
|
|
|
|
extends Node
|
|
|
|
|
|
|
|
|
|
var blackboard: Dictionary = {}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
func keys() -> Array[String]:
|
|
|
|
|
var keys: Array[String]
|
|
|
|
|
keys.assign(blackboard.keys().duplicate())
|
|
|
|
|
return keys
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
func set_value(key: Variant, value: Variant, blackboard_name: String = 'default') -> void:
|
|
|
|
|
if not blackboard.has(blackboard_name):
|
|
|
|
|
blackboard[blackboard_name] = {}
|
|
|
|
|
|
|
|
|
|
blackboard[blackboard_name][key] = value
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
func get_value(key: Variant, default_value: Variant = null, blackboard_name: String = 'default') -> Variant:
|
|
|
|
|
if has_value(key, blackboard_name):
|
|
|
|
|
return blackboard[blackboard_name].get(key, default_value)
|
|
|
|
|
return default_value
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
func has_value(key: Variant, blackboard_name: String = 'default') -> bool:
|
|
|
|
|
return blackboard.has(blackboard_name) and blackboard[blackboard_name].has(key) and blackboard[blackboard_name][key] != null
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
func erase_value(key: Variant, blackboard_name: String = 'default') -> void:
|
|
|
|
|
if blackboard.has(blackboard_name):
|
|
|
|
|
blackboard[blackboard_name][key] = null
|
