《对于初学者的面向对象的程序设计与其在游戏开发中使用》（七）享受劳动果实

我并不是游戏开发的从业人员，甚至连软件开发都不是，但至少我是程序员。 我认为，一个【面向对象】的理念在学习过程中的重要性远大于对于代码本身含义的认识。 这一点可以在诸多书籍中得到论证，但很奇怪的一件事是，绝大部分的视频入门教程和并没有过多的强调这一点。

系列收藏夹：https:/cowlevel.net/collection/3476202

func can_push(num):
	return ((num is int) or (num == '|'))
	pass

func push_number(num):
	if num is int:
		if pushMode :
			number[0]*=10
			number[0]+=num
		else :
			number[1]*=10
			number[1]+=num
	else:
		pushMode = !pushMode
	pass

func get_number():
	return (str(number[0])+"|"+str(number[1]))
	pass

func upgread(num):
	if num.get_class() == "AbsBaseNumber":
		number[0] = num.get_data()
	pushMode = false
	pass

func push_number(num):
	if number.can_push(num) :
		number.push_number(num)
	elif AbsFracNumber.new().can_push(num):
		var tN = AbsFracNumber.new()
		tN.upgread(number)
		number = tN
	pass

func redu():
	var redN
	redN = number[1] if number[0]>number[1] else number[0]
	while(														\
		(number[0] %redN != 0) or (number[0] %redN != 0)		\
	):
		redN -= 1

	if redN!=1 :
		number[0] /=redN
		number[1] /=redN
	pass

func do_add(num, ans):
	var numD = num.get_data()
	if num.get_class() == "AbsBaseNumber":
		ans.set_number([number[0] + numD*number[1], number[1]])
		ans.redu()
	else:
		ans.set_number([	number[0]*numD[1]+number[1]*numD[0]	\
			,					number[1]*numD[1]				])
		ans.redu()
	return ans
	pass 

	if num1.can_operation(form[0]):
		tNum = num1.operation(form[0], symb, tNum)
	else:
		tNum = form[0].operation(num1, symb, tNum)

		if symb == BusiLogic.BT["SUB"]:
			tNum.do_mins()

func push_number(num):
	if num is int:
		if pushMode :
			number[0].push_number(num)
		else :
			number[1].push_number(num)
	else:
		pushMode = !pushMode
	pass

func signal_press():
	if message.size() == 1:
		emit_signal("en_press",[message[0]])
	else:
		next_pop_node = next_pop.instance()
		add_child(next_pop_node)
		next_pop_node.init(message[1],get_parent().rect_position + Vector2(100,20*buttonN))
		next_pop_node.connect("popup_return",self,"_sub_popup")
	pass