You must install JPEXS Free Flash Decompiler to use this patcher. For more information, check https://github.com/jindrapetrik/jpexs-decompiler .
If you do not install via Flatpak, you should go into apply-patch.py and change JPEXS-PATH to your JPEXS executable, adding a space at the end of the string. You should also change JPEXS-ARGS to be the command line arguments required to launch a blank version of JPEXS (ie, the minimum number of command line arguments).
You must have Python 3 on your system to run this script.
You should create the following file structure for your patches:
- Create a top-level patch folder. You will put all your files in this folder.
- Create one or more patch stage files. These specify which patches to apply.
- Create one or more patch files. These contain the code to inject into the SWF.
A patch stage file (usually ending in .stage), may look something like this:
# Comment
patch1.patch
subfolder/patch2.patch
subfolder/pack.assets
You can use # to comment out certain lines. Each line contains a patch file to run, and each injected file must be in the same top-level patch folder as the stage file. When the patcher runs, it will apply each patch file in order.
A patch file (which must end in .patch), may look something like this:
# Comment
add DefineSprite_1058 boss2/DoAction.as 789
_root.gotoAndStop(15);
end-patch
remove frame_1/DoAction.as 789-1111
You can use # to write comments. There are two types of commands, add and remove. The first parameter to any command is the file to modify (in this case, "DefineSprite_1058 boss2/DoAction.as" or "frame_1/DoAction.as"). To find the name of this, export all scripts using JPEXS and make a note of the file name you want to modify.
The second argument is a line number. For the add command, all lines up to (but not including) the end-patch command will be inserted into the SWF, on the specified line. For the remove command, all lines between the two numbers specified will be removed (and this is inclusive).
After an add command, add a newline and then enter your code block. At the end of the block, add a newline and end-patch to tell the patcher the patch is finished.
Instead of a line number, you can also specify end to append to the end of the file. This only applies for add commands.
An asset pack file (which must end in .assets), contains instructions on assets to inject into the Flash file. Currently supported types include:
- Images
The file will look something like this:
# Comment
add-asset localfolder/derp.png images/8.png
This asset pack file takes the local file at localfolder/derp.png and copies it to images/8.png within the SWF. If there was already a file named images/8.png, it will be overwritten with the new file.
To apply a patch, run the following command:
./apply-patch.py [input SWF] [patch folder] [patch stage file] [output SWF]
The patcher will take the input SWF, apply the patches specified in the stage file (which must be located in the patch folder), and create the output SWF.
This code is made available under CC-BY SA 4.0. For more information, check https://creativecommons.org/licenses/by-sa/4.0 .