Airmines should have been set for 45° bounce - the only reason they weren't I guess is they were a clone of some mine values - and mines use traditional behaviour.
This tool allows editing the contents of .hwmap files as human-readable text.
Dependencies:
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Needs Qt / qmake to build
Instructions:
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Build with these 2 commands:
qmake hwmapconverter.pro
make
If compiled successfully, run with:
./hwmapconverter