FixedArray

じ☆ve冰风

FixedArray

The Array With a Fixed Size
for XP VX & ACE​

Have you ever wanted to keep a Ruby Array at a certain size? Was it a pain you know where to prevent it from ever increasing its size or length?

Now you should not worry about that anymore!

Even so you can still clear its contents at any given time.


                Ruby:       

1. # * FixedArray
3. # Have you ever wanted to keep a Ruby Array at a certain size?
4. # Was it a pain you know where to prevent it from ever increasing
5. # its size or length?
6. # Now you should not worry about that anymore!
7. # Even so you can still clear its contents at any given time.
9. # Examples:
11. # ary = FixedArray.new(3)
12. # returns: []
14. # ary = FixedArray.new(3, :a, :b, :c, :d)
15. # returns: [:a, :b, :c]
17. class FixedArray < Array
18.   def initialize(total, *args)
19.     @maxsize = total
20.     repeats = args.size > total ? total : args.size
21.     repeats.times{ push(args.shift) }
22.   end
23.   def push(elem) size == @maxsize ? self : super(elem) end
24.   def <<(elem) size == @maxsize ? self : super(elem) end
25.   def unshift(elem) size == @maxsize ? self : super(elem) end
26.   alias :>> :unshift
27.   attr_accessor :maxsize
28. end

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Script Calls

You may use p or print or puts or msgbox or msgbox_p script calls depending on your debugging needs and RM version.

Actually >> is an alias of the unshiftmethod.

                Code:       

1. array = FixedArray.new(3)
2. # returns: []
3. p array.size
4. # returns: 0
5. p array.maxsize
6. # returns: 3
7. array << :b << :c
8. # returns: [:b, :c]
9. array >> :a
10. # returns: [:a, :b, :c]
11. array = FixedArray.new(3, :a, :b, :c, :d)
12. # returns: [:a, :b, :c]
13. p array.size
14. # returns: 3
15. p array.maxsize
16. # returns: 3

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本贴来自国际rpgmaker官方论坛作者:kyonides处,因国际论坛即将永久关站,为了存档多年珍贵资料,署名转载到本论坛存档,由于官方帖子为英文原帖，需要中文翻译请点击论坛顶部切换语言为中文就可以将帖子翻译成中文浏览,方便大家随时查看,原文地址：https://forums.rpgmakerweb.com/threads/fixedarray.143480/