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synced 2025-12-08 21:54:58 +00:00
Remove Scripts folder to convert to submodule
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@@ -1,171 +0,0 @@
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#####################################
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# Needed because RGSS doesn't call at_exit procs on exit
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# Exit is not called when game is reset (using F12)
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$AtExitProcs=[] if !$AtExitProcs
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def exit(code=0)
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for p in $AtExitProcs
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p.call
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end
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raise SystemExit.new(code)
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end
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def at_exit(&block)
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$AtExitProcs.push(Proc.new(&block))
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end
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#===============================================================================
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# Methods that determine the duration of an audio file.
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#===============================================================================
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def getOggPage(file)
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fgetdw = proc { |file|
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(file.eof? ? 0 : (file.read(4).unpack("V")[0] || 0))
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}
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dw = fgetdw.call(file)
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return nil if dw != 0x5367674F
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header = file.read(22)
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bodysize = 0
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hdrbodysize = (file.read(1)[0].ord rescue 0)
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hdrbodysize.times do
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bodysize += (file.read(1)[0].ord rescue 0)
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end
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ret = [header, file.pos, bodysize, file.pos + bodysize]
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return ret
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end
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# internal function
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def oggfiletime(file)
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fgetdw = proc { |file|
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(file.eof? ? 0 : (file.read(4).unpack("V")[0] || 0))
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}
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pages = []
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page = nil
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loop do
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page = getOggPage(file)
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break if !page
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pages.push(page)
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file.pos = page[3]
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end
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return -1 if pages.length == 0
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curserial = nil
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i = -1
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pcmlengths = []
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rates = []
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for page in pages
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header = page[0]
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serial = header[10, 4].unpack("V")
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frame = header[2, 8].unpack("C*")
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frameno = frame[7]
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frameno = (frameno << 8) | frame[6]
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frameno = (frameno << 8) | frame[5]
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frameno = (frameno << 8) | frame[4]
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frameno = (frameno << 8) | frame[3]
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frameno = (frameno << 8) | frame[2]
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frameno = (frameno << 8) | frame[1]
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frameno = (frameno << 8) | frame[0]
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if serial != curserial
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curserial = serial
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file.pos = page[1]
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packtype = (file.read(1)[0].ord rescue 0)
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string = file.read(6)
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return -1 if string != "vorbis"
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return -1 if packtype != 1
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i += 1
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version = fgetdw.call(file)
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return -1 if version != 0
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rates[i] = fgetdw.call(file)
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end
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pcmlengths[i] = frameno
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end
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ret = 0.0
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for i in 0...pcmlengths.length
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ret += pcmlengths[i].to_f / rates[i].to_f
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end
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return ret * 256.0
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end
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# Gets the length of an audio file in seconds. Supports WAV, MP3, and OGG files.
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def getPlayTime(filename)
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if safeExists?(filename)
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return [getPlayTime2(filename), 0].max
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elsif safeExists?(filename + ".wav")
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return [getPlayTime2(filename + ".wav"), 0].max
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elsif safeExists?(filename + ".mp3")
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return [getPlayTime2(filename + ".mp3"), 0].max
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elsif safeExists?(filename + ".ogg")
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return [getPlayTime2(filename + ".ogg"), 0].max
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end
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return 0
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end
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def getPlayTime2(filename)
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return -1 if !safeExists?(filename)
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time = -1
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fgetdw = proc { |file|
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(file.eof? ? 0 : (file.read(4).unpack("V")[0] || 0))
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}
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fgetw = proc { |file|
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(file.eof? ? 0 : (file.read(2).unpack("v")[0] || 0))
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}
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File.open(filename, "rb") { |file|
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file.pos = 0
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fdw = fgetdw.call(file)
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if fdw == 0x46464952 # "RIFF"
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filesize = fgetdw.call(file)
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wave = fgetdw.call(file)
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return -1 if wave != 0x45564157 # "WAVE"
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fmt = fgetdw.call(file)
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return -1 if fmt != 0x20746d66 # "fmt "
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fmtsize = fgetdw.call(file)
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format = fgetw.call(file)
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channels = fgetw.call(file)
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rate = fgetdw.call(file)
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bytessec = fgetdw.call(file)
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return -1 if bytessec == 0
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bytessample = fgetw.call(file)
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bitssample = fgetw.call(file)
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data = fgetdw.call(file)
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return -1 if data != 0x61746164 # "data"
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datasize = fgetdw.call(file)
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time = (datasize*1.0)/bytessec
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return time
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elsif fdw == 0x5367674F # "OggS"
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file.pos = 0
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time = oggfiletime(file)
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return time
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end
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file.pos = 0
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# Find the length of an MP3 file
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while true
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rstr = ""
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ateof = false
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while !file.eof?
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if (file.read(1)[0] rescue 0) == 0xFF
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begin
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rstr = file.read(3)
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rescue
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ateof = true
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end
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break
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end
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end
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break if ateof || !rstr || rstr.length != 3
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if rstr[0] == 0xFB
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t = rstr[1] >> 4
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next if t == 0 || t == 15
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freqs = [44100, 22050, 11025, 48000]
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bitrates = [32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320]
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bitrate = bitrates[t]
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t = (rstr[1] >> 2) & 3
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freq = freqs[t]
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t = (rstr[1] >> 1) & 1
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filesize = FileTest.size(filename)
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frameLength = ((144000 * bitrate) / freq) + t
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numFrames = filesize / (frameLength + 4)
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time = (numFrames * 1152.0 / freq)
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break
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end
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end
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}
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return time
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end
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