56 lines
1.5 KiB
GDScript
56 lines
1.5 KiB
GDScript
|
extends Node2D
|
|||
|
|
|
|||
|
|
|
|||
|
|
func _enter_tree():
|
|||
|
|
# When the node enters the Scene Tree, it becomes active
|
|||
|
|
# and this function is called. Children nodes have not entered
|
|||
|
|
# the active scene yet. In general, it's better to use _ready()
|
|||
|
|
# for most cases.
|
|||
|
|
print("sub node1 _enter_tree")
|
|||
|
|
|
|||
|
|
func _ready():
|
|||
|
|
# This function is called after _enter_tree, but it ensures
|
|||
|
|
# that all children nodes have also entered the Scene Tree,
|
|||
|
|
# and became active.
|
|||
|
|
print("sub node1 _ready")
|
|||
|
|
nodeUsage()
|
|||
|
|
|
|||
|
|
func _exit_tree():
|
|||
|
|
# When the node exits the Scene Tree, this function is called.
|
|||
|
|
# Children nodes have all exited the Scene Tree at this point
|
|||
|
|
# and all became inactive.
|
|||
|
|
print("sub node1 _exit_tree")
|
|||
|
|
|
|||
|
|
func _process(delta):
|
|||
|
|
# This function is called every frame.
|
|||
|
|
pass
|
|||
|
|
|
|||
|
|
func _physics_process(delta):
|
|||
|
|
# This is called every physics frame.
|
|||
|
|
pass
|
|||
|
|
|
|||
|
|
# 申明和存储节点，等价于在_ready()下赋值
|
|||
|
|
onready var readySubNode = $SubNode2
|
|||
|
|
|
|||
|
|
func nodeUsage():
|
|||
|
|
# 获取当前节点
|
|||
|
|
var currentNode1 = $"."
|
|||
|
|
var currentNode2 = self
|
|||
|
|
# 获取父节点
|
|||
|
|
var parentNode1 = get_parent()
|
|||
|
|
var parentNode2 = $"../"
|
|||
|
|
# 获取子节点
|
|||
|
|
var subNode1 = $SubNode2
|
|||
|
|
var subNode2 = $"SubNode2"
|
|||
|
|
var subNode3 = get_node("SubNode2")
|
|||
|
|
# 根节点查找法，会返回节点树从上到下找到的第一个节点
|
|||
|
|
var subNode4 = get_tree().root.find_node("SubNode2", true, false)
|
|||
|
|
print(currentNode1.name)
|
|||
|
|
print(currentNode2.name)
|
|||
|
|
print(parentNode1.name)
|
|||
|
|
print(parentNode2.name)
|
|||
|
|
print(subNode1.name)
|
|||
|
|
print(subNode2.name)
|
|||
|
|
print(subNode3.name)
|
|||
|
|
print(subNode4.name)
|