proto3 initial commit

proto3/godot/ai/bt_base.gd

@@ -0,0 +1,66 @@
+extends Node
+class_name BTBase
+
+func _execute(tick: Tick) -> int:
+	
+	_enter(tick)
+	
+	if not tick.blackboard.get('isOpen', tick.tree, self):
+		_open(tick)
+	
+	var status := _tick(tick)
+	
+	if status != ERR_BUSY:
+		_close(tick)
+	
+	_exit(tick)
+	
+	return status
+
+
+func _enter(tick: Tick) -> void:
+	
+	tick.enter_node(self) #debug call to be filled out in Tick object
+	enter(tick)
+
+
+func _open(tick: Tick) -> void:
+	
+	tick.open_node(self)
+	tick.blackboard.set('isOpen', true, tick.tree, self)
+	open(tick)
+
+
+func _tick(tick: Tick) -> int:
+	
+	tick.tick_node(self)
+	return tick(tick)
+
+
+func _close(tick: Tick) -> void:
+	
+	tick.close_node(self)
+	tick.blackboard.set('isOpen', false, tick.tree, self)
+	close(tick)
+
+
+func _exit(tick: Tick) -> void:
+	tick.exit_node(self)
+	exit(tick)
+
+
+# The following functions are to be overridden in extending nodes
+func enter(_tick: Tick) -> void:
+	pass
+
+func open(_tick: Tick) -> void:
+	pass
+
+func tick(_tick: Tick) -> int:
+	return OK
+
+func close(_tick: Tick) -> void:
+	pass
+
+func exit(_tick: Tick) -> void:
+	pass