Range.zip crashes JoiPlay

enumag

I fixed this issue by rewriting the game script to not use it so there is no version to reproduce this anymore. But you can easily confirm it by adding this code into a game that is using the RPG Maker plugin: ('A'..'Z').zip(1..26)

It doesn’t cause any script error to show up, it just instantly crashes JoiPlay. Clearly some issue with JoiPlay’s Ruby.

This was confirmed by g_f_y as well when we were looking into it.

g_f_y

Range#zip(Range) to be more specific
Only occurs when using RPG Maker (mkxp-z) type, i.e. Ruby 3
Works on RPG Maker Plugin 1.20.29 (Ruby 3.1.3)
Freezes on RPG Maker Plugin 1.20.40 (Ruby 3.2.2) and later

Test script

p "Array#zip(Range): " + ([1,2,3,4,5].zip('a'..'e')).inspect
p "Range#zip(Array): " + ((1..5).zip(['a','b','c','d','e'])).inspect
p "Range#zip(Range): " + ((1..5).zip('a'..'e')).inspect
p "Good!"

Possible preload.rb fix

if MKXP.ruby_version[0] == '3'
  class Range
    alias_method :original_zip, :zip
    
    def zip(*other_arrays, &block)
      original_zip(*other_arrays.map { |arr| arr.is_a?(Range) ? arr.to_a : arr }, &block)
    end
  end
end