Behavior Tree addon

addons/beehave/blackboard.gd

@@ -0,0 +1,24 @@
+extends Reference
+
+var blackboard = {}
+
+func set(key, value, blackboard_name = 'default'):
+	if not blackboard.has(blackboard_name):
+		blackboard[blackboard_name] = {}
+
+	blackboard[blackboard_name][key] = value
+
+
+func get(key, default_value = null, blackboard_name = 'default'):
+	if has(key, blackboard_name):
+		return blackboard[blackboard_name].get(key, default_value)
+	return default_value
+
+
+func has(key, blackboard_name = 'default'):
+	return blackboard.has(blackboard_name) and blackboard[blackboard_name].has(key) and blackboard[blackboard_name][key] != null
+
+
+func erase(key, blackboard_name = 'default'):
+	if blackboard.has(blackboard_name):
+		 blackboard[blackboard_name][key] = null