Added conversion of things in Game Variables in save data, renamed some files

Data/Scripts/001_Technical/002_RubyUtilities.rb

@@ -0,0 +1,220 @@
+#===============================================================================
+# class Object
+#===============================================================================
+class Object
+  alias full_inspect inspect
+end
+
+#===============================================================================
+# class Class
+#===============================================================================
+class Class
+  def to_sym
+    return self.to_s.to_sym
+  end
+end
+
+#===============================================================================
+# class String
+#===============================================================================
+class String
+  def starts_with_vowel?
+    return ['a', 'e', 'i', 'o', 'u'].include?(self[0, 1].downcase)
+  end
+
+  def first(n = 1)
+    return self[0...n]
+  end
+
+  def last(n = 1)
+    return self[-n..-1] || self
+  end
+
+  def blank?
+    blank = true
+    s = self.scan(/./)
+    for l in s
+      blank = false if l != ""
+    end
+    return blank
+  end
+
+  def cut(bitmap, width)
+    string = self
+    width -= bitmap.text_size("...").width
+    string_width = 0
+    text = []
+    for char in string.scan(/./)
+      wdh = bitmap.text_size(char).width
+      next if (wdh + string_width) > width
+      string_width += wdh
+      text.push(char)
+    end
+    text.push("...") if text.length < string.length
+    new_string = ""
+    for char in text
+      new_string += char
+    end
+    return new_string
+  end
+end
+
+#===============================================================================
+# class Numeric
+#===============================================================================
+class Numeric
+  # Turns a number into a string formatted like 12,345,678.
+  def to_s_formatted
+    return self.to_s.reverse.gsub(/(\d{3})(?=\d)/, '\1,').reverse
+  end
+end
+
+#===============================================================================
+# class Array
+#===============================================================================
+class Array
+  def ^(other)   # xor of two arrays
+    return (self|other) - (self&other)
+  end
+end
+
+#===============================================================================
+# module Enumerable
+#===============================================================================
+module Enumerable
+  def transform
+    ret = []
+    self.each { |item| ret.push(yield(item)) }
+    return ret
+  end
+end
+
+#===============================================================================
+# class ByteWriter (used by def save_to_png below)
+#===============================================================================
+class ByteWriter
+  def initialize(filename)
+    @file = File.new(filename, "wb")
+  end
+
+  def <<(*data)
+    write(*data)
+  end
+
+  def write(*data)
+    data.each do |e|
+      if e.is_a?(Array)
+        e.each { |item| write(item) }
+      elsif e.is_a?(Numeric)
+        @file.putc e
+      else
+        raise "Invalid data for writing."
+      end
+    end
+  end
+
+  def write_int(int)
+    self << ByteWriter.to_bytes(int)
+  end
+
+  def close
+    @file.close
+    @file = nil
+  end
+
+  def self.to_bytes(int)
+    return [
+      (int >> 24) & 0xFF,
+      (int >> 16) & 0xFF,
+      (int >> 8) & 0xFF,
+       int & 0xFF
+    ]
+  end
+end
+
+#===============================================================================
+# class Bitmap
+#===============================================================================
+class Bitmap
+  def save_to_png(filename)
+    f = ByteWriter.new(filename)
+    #============================= Writing header =============================#
+    # PNG signature
+    f << [0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]
+    # Header length
+    f << [0x00, 0x00, 0x00, 0x0D]
+    # IHDR
+    headertype = [0x49, 0x48, 0x44, 0x52]
+    f << headertype
+    # Width, height, compression, filter, interlacing
+    headerdata = ByteWriter.to_bytes(self.width).
+      concat(ByteWriter.to_bytes(self.height)).
+      concat([0x08, 0x06, 0x00, 0x00, 0x00])
+    f << headerdata
+    # CRC32 checksum
+    sum = headertype.concat(headerdata)
+    f.write_int Zlib::crc32(sum.pack("C*"))
+    #============================== Writing data ==============================#
+    data = []
+    for y in 0...self.height
+      # Start scanline
+      data << 0x00   # Filter: None
+      for x in 0...self.width
+        px = self.get_pixel(x, y)
+        # Write raw RGBA pixels
+        data << px.red
+        data << px.green
+        data << px.blue
+        data << px.alpha
+      end
+    end
+    # Zlib deflation
+    smoldata = Zlib::Deflate.deflate(data.pack("C*")).bytes
+    # data chunk length
+    f.write_int smoldata.size
+    # IDAT
+    f << [0x49, 0x44, 0x41, 0x54]
+    f << smoldata
+    # CRC32 checksum
+    f.write_int Zlib::crc32([0x49, 0x44, 0x41, 0x54].concat(smoldata).pack("C*"))
+    #============================== End Of File ===============================#
+    # Empty chunk
+    f << [0x00, 0x00, 0x00, 0x00]
+    # IEND
+    f << [0x49, 0x45, 0x4E, 0x44]
+    # CRC32 checksum
+    f.write_int Zlib::crc32([0x49, 0x45, 0x4E, 0x44].pack("C*"))
+    f.close
+    return nil
+  end
+end
+
+#===============================================================================
+# Kernel methods
+#===============================================================================
+def rand(*args)
+  Kernel.rand(*args)
+end
+
+class << Kernel
+  alias oldRand rand unless method_defined?(:oldRand)
+  def rand(a = nil, b = nil)
+    if a.is_a?(Range)
+      lo = a.min
+      hi = a.max
+      return lo + oldRand(hi - lo + 1)
+    elsif a.is_a?(Numeric)
+      if b.is_a?(Numeric)
+        return a + oldRand(b - a + 1)
+      else
+        return oldRand(a)
+      end
+    elsif a.nil?
+      return (b) ? oldRand(b) : oldRand(2)
+    end
+  end
+end
+
+def nil_or_empty?(string)
+  return string.nil? || !string.is_a?(String) || string.size == 0
+end