Adding blocks by the game user

:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By mustafamax

I want the user to add blocks
Like a Minecraft game

Using this method described below
I can add the blocks but the opposite of the result I expect

Block Script

extends MeshInstance

export var my_x = "x"
export var my_y = "y"
export var my_z = "z"
var is_x = false
var is_y = false
var is_z = false

var _x = 0
var _y = 0
var _z = 0

#####################################

func _on_AreaTop_mouse_entered():
$SelectTB.visible = true
_y = $AreaTop.global_transform.origin.y
is_y = true

func _on_AreaTop_mouse_exited():
$SelectTB.visible = false
_y = global_transform.origin.y
is_y = false

func _on_AreaBottom_mouse_entered():
$SelectTB.visible = true
_y = -$AreaTop.global_transform.origin.y
is_y = true

func _on_AreaBottom_mouse_exited():
$SelectTB.visible = false
_y = -global_transform.origin.y
is_y = false

#####################################

func _on_AreaFront_mouse_entered():
$SelectFB.visible = true
_z = $AreaFront.global_transform.origin.z
is_z = true

func _on_AreaFront_mouse_exited():
$SelectFB.visible = false
_z = global_transform.origin.z
is_z = false

func _on_AreaBack_mouse_entered():
$SelectFB.visible = true
_z = -$AreaFront.global_transform.origin.z
is_z = true


func _on_AreaBack_mouse_exited():
$SelectFB.visible = false
_z = -global_transform.origin.z
is_z = false

#####################################

func _on_AreaRight_mouse_entered():
$SelectRL.visible = true
_x = $AreaRight.global_transform.origin.x
is_x = true

func _on_AreaRight_mouse_exited():
$SelectRL.visible = false
_x = global_transform.origin.x
is_x = false

func _on_AreaLeft_mouse_entered():
$SelectRL.visible = true
_x = -$AreaRight.global_transform.origin.x
is_x = true


func _on_AreaLeft_mouse_exited():
$SelectRL.visible = false
_x = -global_transform.origin.x
is_x = false

#####################################

func _process(delta):
if is_x || is_y || is_z:
	print(_x, " :X")
	print(_y, " :Y")
	print(_z, " :Z")
	Input.action_press(my_x, _x)
	Input.action_press(my_y, _y)
	Input.action_press(my_z, _z)

Script adding the block in the game

extends Spatial

var block = load("res://Block.tscn")
onready var world = $World

func _ready():
pass

func _input(event):
var x = get_viewport().get_mouse_position()[0]
var y = get_viewport().get_mouse_position()[1]
if Input.is_action_pressed("mouse_left"):

	var block_x = Input.get_action_strength("x")
	var block_y = Input.get_action_strength("y")
	var block_z = Input.get_action_strength("z")
	var blockInstance = block.instance()
	
	blockInstance.transform.origin = Vector3(block_x, block_y, block_z)
	add_child(blockInstance)
	

I ask those who have a solution to this problem to share with me the solution

The result of the code is higher