使用 afplay 和相对文件路径使用 AppleScript 播放声音 [英] Play sound with AppleScript using afplay and relative file path

问题描述

我正在尝试创建一个使用 afplay 的 AppleScript(如此处建议) 播放位于与脚本相同目录中的目录中的随机声音文件.

I'm trying to create an AppleScript that uses afplay (as suggested here) to play a random sound file that's located in a directory within the same directory as the script.

folder
-- applescript.scpt
-- sounds
----- sound-x.aiff

我发现关于相对路径的此评论可能有用:

I found this comment regarding relative paths to be potentially useful:

 (POSIX path of (path to me))

但是，当我尝试将其与 混合时，我不断收到错误消息这种随机性方法...

However, I keep receiving errors when I try mashing it up with this approach for randomness...

set theNumber to 3

set theFiles to {}
repeat
    set file_path to quoted form of (POSIX path of (path to me))
    tell application "Finder" to set aFile to (some file of file_path & "/sounds_dir") as text
    if aFile is not in theFiles then
        set end of theFiles to aFile
        tell application "Finder" to open file aFile
        do shell script ("afplay " & file_path & " > /dev/null 2>&1 &")
    end if
    if (count of theFiles) is equal to theNumber then exit repeat
end repeat

推荐答案

在 script 中，path to me 返回 path 到脚本文件，但我们需要它的父路径来添加一个子路径.

In a script, path to me returns the path to the script file but we need its parent path to add a sub path.

要组成正确的路径，我们可以使用子程序 composeFilePath(fileName).

To compose the correct path, we can use the subroutine composeFilePath(fileName).

主要动作在重复循环中.我还添加了 delay 以便更容易测试.使用前保存脚本，因为我的路径在未保存时会返回错误的路径.

The main action is in the repeat loop. I also added a delay so it's easier to test. Save the script before using since path to me will return a wrong path when its unsaved.

set LOOPS to 3
set soundFolderName to "sounds_dir"

# ---------------------
# SETUP 
# ---------------------
set soundFolderFullPath to my composeFilePath(soundFolderName)

tell application "Finder"

    if folder soundFolderFullPath exists then

        set soundFolder to (folder soundFolderFullPath)

    else
        set soundFolder to ""
        # Customize action when folder does not exist
        beep
        log "*** Error: folder " & quoted form of soundFolderFullPath & " missing!"
        return
    end if

    if (count files in soundFolder) is 0 then
        # Customize action when folder has no items in it
        beep
        log "*** Error: No items in " & quoted form of soundFolderFullPath & " !"
        return
    end if

end tell

# -------------------------------------------
# We have "soundFolder" and it has items in it
# -------------------------------------------

repeat LOOPS times

    # PLAY RANDOM FILE

    # As ONE LINER:
    ## do shell script "/usr/bin/afplay " & quoted form of (POSIX path of ((some file of soundFolder) as text)) & " > /dev/null 2>&1 &"

    # Step By Step
    set aRandomFile to some file of soundFolder
    set aRandomFile to POSIX path of (aRandomFile as text)

    set shellScript to "/usr/bin/afplay " & quoted form of aRandomFile & " > /dev/null 2>&1 &"
    do shell script shellScript

    delay 1

end repeat




on composeFilePath(fileName)
    if fileName is "" then return ""
    set pathToMe to path to me -- this is the full path to this script
    -- get the folder this script is in:
    set thisScriptsFolder to ""
    tell application "Finder"
        try
            set thisScriptsFolder to (get container of pathToMe) as text
        end try
    end tell
    if thisScriptsFolder is "" then
        return ""
    end if
    return thisScriptsFolder & fileName -- full path
end composeFilePath

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