为什么这个精灵在0,0产卵，当我在它产生的时候改变它？

Question

我在戈多做一个采矿游戏。

我的问题是，翡翠脉处于0,0的位置，但我在产卵脚本中改变了它。我需要得到在种子中使用它的全局位置，这样我就可以得到一个1或0的值来得到一个石头或翡翠块。因为它是0,0，每个块加载如下所示：图像

var rand = round(abs(chunksettings.noise.get_noise_2d(self.global_position.x + (x * offset),self.global_position.y + (y * offset)))*3)

后来我有矿脉要装成块状。这些矿脉在其内部形成块状。

这个场景在主场景中得到了体现。以下是主要场景的代码：

extends Node2D


#offset between chunks
var offset = 48

#preloading chunk settings
export var load_x = 20
export var load_y = 20

#all the veins to spawn
var stone_vein = preload("res://Scenes/veins/Stone vein.tscn")
var emerald_vein = preload("res://Scenes/veins/Emerald vein.tscn")

func _ready():
    for x in load_x:
        
        for y in load_y:
            var emerald_vein_inst = emerald_vein.instance()
            add_child(emerald_vein_inst)
            emerald_vein_inst.position2d.global_position.x = x * offset
            emerald_vein_inst.position2d.global_position.y = y * offset
            emerald_vein_inst.global_position.x = x * offset
            emerald_vein_inst.global_position.y = y * offset

func getrandomnumber():
    pass

以下是开采矿脉的代码：

extends Node2D

onready var selfnoise = OpenSimplexNoise.new()
onready var chunksettings = $"/root/ChunkSettings"
onready var position2d = $Position2D
var emerald_block = preload("res://Scenes/Blocks/Emerald block.tscn")
var stone_block = preload("res://Scenes/Blocks/Stone_Block.tscn")
var offset = 16
var rng = RandomNumberGenerator.new()

func _ready():
    selfnoise.seed = chunksettings.noise.seed
    selfnoise.octaves = chunksettings.noise.octaves
    selfnoise.persistence = chunksettings.noise.persistence
    selfnoise.lacunarity = chunksettings.noise.lacunarity
    gen_vein()
    
func gen_vein():
    for x in 3:
        for y in 3:
            var inst_stone = stone_block.instance()
            var inst_emerald = emerald_block.instance()
            var inst = inst_stone
            var rand = round(abs(chunksettings.noise.get_noise_2d(self.global_position.x + (x * offset),self.global_position.y + (y * offset)))*3)
            print(rand)
            if rand == 1:
                inst = inst_emerald
            elif rand == 0:
                inst = inst_stone
            print(self.global_position)
            add_child(inst)
            inst.position.x = offset * x
            inst.position.y = offset * y

Answer 1

我更改了代码的一部分并使其工作起来。当它生成节点时，它运行节点脚本，然后更改其位置。所以，我改变了它产生的顺序。

func _ready():
    for x in load_x:
        
        for y in load_y:
            var emerald_vein_inst = emerald_vein.instance()
            emerald_vein_inst.global_position.x = x * offset
            emerald_vein_inst.global_position.y = y * offset
            add_child(emerald_vein_inst)

而不是：

func _ready():
    for x in load_x:
        
        for y in load_y:
            var emerald_vein_inst = emerald_vein.instance()
            add_child(emerald_vein_inst)
            emerald_vein_inst.position2d.global_position.x = x * offset
            emerald_vein_inst.position2d.global_position.y = y * offset
            emerald_vein_inst.global_position.x = x * offset
            emerald_vein_inst.global_position.y = y * offset

Reddit上有人帮了我(详细信息)。