Create 4 files in /input/: osu.csv, taiko.csv, catch.csv, and mania.csv. For all beatmaps that you want to calculate the values for, add the map's id into the file that corresponds to the map's mode. The ids must be seperated either by comma (",") or by whitespace (" ", new line, tab).
Rename .env.example to .env and put proper values for both of its variables:
- PERF_CALC_PATH is going to be something like C:/osu-tools/PerformanceCalculator/bin/Release/net5.0/PerformanceCalculator.dll
- MAP_PATH is the path to the folder containing all relevant .osu files that were specified in the .csv files
Since PerformanceCalculator.dll won't print the stars for a map simulation by default, you will need to make a tiny adjustment to a file in the osu-tools repo. In osu-tools/PerformanceCalculator/Simulate/SimulateCommand.cs, add the following line to the other lines that look similar:
```
o["Stars"] = difficultyAttributes.StarRating;
```
Don't forget to recompile osu-tools via dotnet build -c Release after making the change.
Run cargo run --release. The program will use the PerformanceCalculator.dll to calculate the values and then store them in /output/{mode}.json.

Output format

The calculated values for each map for multiple different mod combinations will be stored in a JSON array. The array elements will be of the following form:

osu:

  {
      "mode": 0,
      "map_id": integer,
      "aim": float,
      "speed": float,
      "accuracy": float,
      "flashlight": float,
      "od": float,
      "ar": float,
      "mods": "HD, HR", // comma + whitespace separated string of mod abbreviations ("None" for nomod)
      "stars": float,
      "pp": float,
  }

taiko:

  {
      "mode": 1,
      "map_id": integer,
      "accuracy": float,
      "strain": float,
      "mods": "HD, HR", // comma + whitespace separated string of mod abbreviations ("None" for nomod)
      "stars": float,
      "pp": float,
  }

catch:

  {
      "mode": 2,
      "map_id": integer,
      "mods": "HD, HR", // comma + whitespace separated string of mod abbreviations ("None" for nomod)
      "stars": float,
      "pp": float,
  }

mania:

  {
      "mode": 3,
      "map_id": integer,
      "accuracy": float,
      "strain": float,
      "mods": "HD, HR", // comma + whitespace separated string of mod abbreviations ("None" for nomod)
      "stars": float,
      "pp": float,
  }