我在Godot中创建了一个“附加心理数学计算器”,向用户显示了一个有关单击“ on_Button_pressed”按钮的新问题,其总和存储在“ global var c”中,然后通过“ Lineedit”访问输入然后存储在“ var d”中。但是,当传递“ var c”与“ Lineedit”中的“ var d”进行比较时,它将传递“ Null”值。如何在两个函数之间传递值。
extends Panel
# global variables
var a = " "
var b = " "
var c = " "
var d = " "
func _ready():
pass
#Generate Random number and store sum in "var c"
func _on_Button_pressed():
randomize()
var a = floor (rand_range(1,100))
var b = floor (rand_range(1,100))
var c = a+b
print (a)
print (b)
print ("c = "+ str(c))
get_node("RichTextLabel").set_text(str(a)+"+"+str(b)+"=")
#User_input
func _on_LineEdit_text_entered( text ):
d = get_node("LineEdit").text
#pass sum "var c" for comparison with user_input "var d"
print(c)<-- NUll value being passed.
#Accesing value via node method
# var e = get_node("Panel").get("c").to_float()<-- Error-"Panel node doesn't exist"
# print(e)
#convert d to float
var f = d.to_float()
print(f)
#Compare sum with user_input
# if f == c:
# get_node("RichTextLabel").set_text("Right Answer")
# else:
# get_node("RichTextLabel").set_text("Wrong Answer")
答案 0 :(得分:1)
尝试替换行
var c = a + b
使用
c = a + b
变量var声明一个新的变量,该变量在函数的作用域内起作用。 var关键字应位于代码的最外层声明中。
希望有帮助!