simple_state.gd - Opengist

simple_state.gd · 1.7 KiB · GDScript3 Eredeti Playground

1	extends Node
2	class_name _SimpleState
3
4	signal state_changed(name, state)
5
6	var state := { }
7
8
9	func register(state_name: String, inital_state: Dictionary = {}) -> void:
10	state[state_name] = inital_state
11
12
13	func replace(state_name: String, new_state: Dictionary) -> void:
14	state[state_name] = new_state.duplicate(true)
15	emit_signal("state_changed", state_name, state)
16
17
18	func update(state_name: String, new_state: Dictionary) -> void:
19	state[state_name] = _SimpleState.merge(get_state(state_name), new_state)
20	emit_signal("state_changed", state_name, state)
21
22
23	func update_deep(state_name: String, new_state: Dictionary) -> void:
24	state[state_name] = _SimpleState.merge_deep(get_state(state_name), new_state)
25	emit_signal("state_changed", state_name, state)
26
27
28	func update_mut(state_name: String, new_state: Dictionary) -> void:
29	_SimpleState.copy_to(state[state_name], new_state)
30	emit_signal("state_changed")
31
32
33	func _on_update_state(data: Dictionary) -> void:
34	update(data.state_name, data.state)
35
36
37	func get_state(state_name: String) -> Dictionary:
38	return state[state_name].duplicate()
39
40
41	static func copy_to(a: Dictionary, b: Dictionary) -> void:
42	for key in b:
43	a[key] = b[key]
44
45
46
47	static func copy_to_deep(a: Dictionary, b: Dictionary) -> void:
48	for k in b:
49	if process_recursively(a, b, k):
50	copy_to_deep(a[k], b[k])
51	else:
52	a[k] = b[k]
53
54
55	static func process_recursively(a, b, k) -> bool:
56	return a.has(k) and a[k] is Dictionary and b[k] is Dictionary
57
58	static func merge(a: Dictionary, b: Dictionary) -> Dictionary:
59	var c := a.duplicate(true)
60	copy_to(c, b)
61	return c
62
63
64	static func merge_deep(a: Dictionary, b: Dictionary) -> Dictionary:
65	var c := a.duplicate(true)
66	copy_to_deep(c, b)
67	return c
68