Batch - Copying & Naming - batch-file

Question

EDIT: Updated the Code with "Stephan" Edits. I tested some dummy files and everything seems to work. Thanks for taking the time out getting this fixed and working. I can now focus on moving forward on projects instead of getting outdated game development tools working. This was for the Source Engine SDK to help get game models loaded correctly with backwards compatibility.
"sodacan.dx90.dx80.vtx" should be "sodacan.dx80.vtx".
"sodacan.dx90.sw.vtx" should be "sodacan.sw.vtx".
ORIGINAL POST:
This batch file is suppose to restore missing vtx files by copying an existing vtx file. But the vtx files require a special prefix attached to them before the extension, such as "sodacan.dx80.vtx" and "sodacan.sw.vtx".
The Problem is that the script is not working as it should. The script is ran on a folder that contains VTX files with different names. The script is suppose to create copies of a single vtx file and name them. The example below shows what you start out with and the end result.
You start out with the original, such as
sodacan.dx90.vtx (Original File)
You should end with
sodacan.dx90.vtx (Original File)
sodacan.dx80.vtx (Copy 1)
sodacan.sw.vtx (Copy 2)
But I actually get this from the code.
awning001a.dx90.vtx (Original File)
awning001a.dx90.sw.vtx (Copy 1)
awning001a.dx90.dx80.vtx (Copy 2)
These files work with there associated MDL File, such as (sodacan.mdl) but the script does not touch those files at all.
Below is the code in the batch file
#ECHO OFF
echo Initiating VTX re-construction...
set /a count=0
for /r %%F in (.) do (
Pushd %%F
for %%i in ("*.vtx") do (
for %%j in ("%%~ni") do (
echo Fixing "%%~ni.mdl".
if not exist "%%~nj.dx80%%~xi" copy "%%i" "%%~nj.dx80%%~xi" && set /a count+=1
if not exist "%%~nj.sw%%~xi" copy "%%i" "%%~nj.sw%%~xi" && set /a count+=1
)
)
popd
)
echo %count% reconstructed VTXes.
pause

Answer 1

Replace your for %%i loop with the following:
for %%i in ("*.vtx") do (
for %%j in ("%%~ni") do (
echo Fixing "%%~ni.mdl".
if not exist "%%~nj.dx80%%~xi" copy "%%i" "%%~nj.dx80%%~xi" && set /a count+=1
if not exist "%%~nj.sw%%~xi" copy "%%i" "%%~nj.sw%%~xi" && set /a count+=1
)
)
and at the end use:
echo %count% reconstructed VTXes.
Changes to your code:
process only the desired extension instead of processing all files and compare the extension with an if
Check if the destination file exists before copying
increment the counter only, if there was a copy
take care of the proper filenames (two dots) with another for %%j (effectively removing two "extensions")
adapted the last echo line to include the counter
(and don't forget to popd at the end of your for /R loop - there is just a limited stack for pushd and without popd you might run into that limit, generating an errormessage and exiting the script)