Applescript to batch change creation dates (different dates each file)

Question

I was pointed to an older thread that almost gets me what I need, but I'm not great with applescript, so I'm lost. Basically, I have a bunch of files. The name of the files are in a yyyymmddhhmmss.extension format (such as 20040710141231.mp4). I want to set the creation date of each file to the date by which they are all named. I found the older thread with a similar script and modified it, but I know it's not all there. I can post the whole script, but I'm pretty sure my main issue is with this part:)
                    tell originalFileCreationDate
                              set myY to year
                              set myM to text -2 through end of ("0" & (its month as integer))
                              set myD to text -2 through end of ("0" & day)
                              set myHr to text -2 through end of ("0" & (its time) div 3600)
                              set myMin to text -2 through end of ("0" & (its time) mod 3600 div 60)
                              set mySec to text -2 through end of ("0" & (its time) mod 60 as text)
                    end tell
I'm not sure how to write that to set the date based on the file name. Can someone point me in the right direction?
Thanks.

Answer 1

Try this instead.
This will change the access and modification times of the file:
set theDir to choose folder
do shell script "
for f in " & POSIX path of theDir & "*
do
          n=${f##*/}
          if [[ $n =~ ^[0-9]{14} ]]; then
                   touch -t ${n:0:12}.${n:12:2} \"$f\"
          fi
done