Module: SpriteKit::Serializer

Defined in:
mygame/lib/sprite_kit/serializer.rb

Class Method Summary collapse

Class Method Details

.to_json(object, spacer = " ", depth = 1) ⇒ Object

down and dirty to_json. Just hashes, numbers, symbols, strings, array, and nil.



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# File 'mygame/lib/sprite_kit/serializer.rb', line 35

def self.to_json(object, spacer = "  ", depth = 1)
  strs = []

  if object.is_a?(Array)
    object.each do |v|
      strs << to_json_value(v, spacer, depth)
    end
  elsif Object.is_a?(Hash)
    object.each do |k, v|
      strs << "#{spacer * depth}\"#{k}\": #{to_json_value(v, spacer, depth)}"
    end
  else
    raise "Only hashes and arrays are supported."
  end

  "{\n" + strs.join(",\n") + "\n}"
end

.to_json_value(value, spacer, depth) ⇒ Object

Primitive for turning a value into a JSON string. Right now it supports Hash, Numeric, String, Symbol, Array, and nil.



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# File 'mygame/lib/sprite_kit/serializer.rb', line 4

def self.to_json_value(value, spacer, depth)
  return "null" if value.nil?

  return value.to_s if value.is_a?(Numeric)

  return "\"#{value.to_s.gsub('"', "'\"'")}\"" if value.is_a?(String) || value.is_a?(Symbol)

  if value.is_a?(Hash)
    inner_depth = depth + 1
    strings = value.map do |k, v|
      "#{spacer * inner_depth}" + to_json_value(k, spacer, inner_depth) + ": " + to_json_value(v, spacer, inner_depth)
    end.join(",\n")

    leading_space = "#{spacer * depth}"
    return "{\n" + strings + "\n#{leading_space}}"
  end

  if value.is_a?(Array)
    inner_depth = depth + 1
    strings = value.map do |v|
      "#{spacer * inner_depth}" + to_json_value(v, spacer, inner_depth)
    end.join(",\n")

    leading_space = "#{spacer * depth}"
    return "[\n" + strings + "\n#{leading_space}]"
  end

  raise "Value is not of type String, Symbol, Hash, Numeric, Array, or nil"
end