Download link for Excel spreadsheet:
http://www.racedepartment.com/forum...le-ground-between-pro-and-legend.205/viewfile
The Mod
Over the last week I've been experimenting with some tweaks to the track_difficulty tables in the database file to find a middle ground between Legend and Professional difficulties. Personally, I find Legend just too hard and Pro is too easy for my tastes. Modified legend AI sets realistic race lap times and retains all the aggressiveness of regular Legend AI without the superhuman lapping speed.
Background and Method
I'll give some explanation on my method of modifying the difficulty below, so feel free to skip this section; this background is only to justify my method to other modders who might be interested. To bring the Legend AI down just a bit I've modified the track_difficulty values using the following algorithm:
So for each track i we take the average difficulty between Pro and Legend, then multiply it by 1 plus some scalar multiple of the standard deviation (sigma) of the averages between Legend and Pro (mu). This method preserves the intrinsic differences in difficulties across tracks at the Pro level while bumping up the difficulty by some constant amount. Thus, the AI behave relative to their Pro difficulties, but scaled up by some factor of the variance in averages between Pro and Legend difficulties.
Previous attempts had used a deviation between Pro and Legend as the scale factor, but that just ended up making tracks where the Pro difficulty was relatively weaker much harder and not properly preserving the relative difficulties.
The mod
Okay, maths over with let's get on to the mod. I've put together a spreadsheet that contains some possible difficulty levels for various levels of theta - ie. how many standard deviations to scale the difficulty up by. See the link at top to download it from RaceDepartment. The three columns at the right, coloured in blue, green, and red include the values you want to copy over to your database.bin file. Blue is 'easiest', then green, then red, corresponding to theta values of 1, 2, and 3 times the standard deviation to add.
The values are sorted in the default track order you will find when you open the database file with RDE so there's no need to hunt around to make sure the ID's match up.
How to add this mod to your database.bin:
If this gets some half-decent attention, I'll put together some database.bin files for download in the future.
http://www.racedepartment.com/forum...le-ground-between-pro-and-legend.205/viewfile
The Mod
Over the last week I've been experimenting with some tweaks to the track_difficulty tables in the database file to find a middle ground between Legend and Professional difficulties. Personally, I find Legend just too hard and Pro is too easy for my tastes. Modified legend AI sets realistic race lap times and retains all the aggressiveness of regular Legend AI without the superhuman lapping speed.
Background and Method
I'll give some explanation on my method of modifying the difficulty below, so feel free to skip this section; this background is only to justify my method to other modders who might be interested. To bring the Legend AI down just a bit I've modified the track_difficulty values using the following algorithm:
So for each track i we take the average difficulty between Pro and Legend, then multiply it by 1 plus some scalar multiple of the standard deviation (sigma) of the averages between Legend and Pro (mu). This method preserves the intrinsic differences in difficulties across tracks at the Pro level while bumping up the difficulty by some constant amount. Thus, the AI behave relative to their Pro difficulties, but scaled up by some factor of the variance in averages between Pro and Legend difficulties.
Previous attempts had used a deviation between Pro and Legend as the scale factor, but that just ended up making tracks where the Pro difficulty was relatively weaker much harder and not properly preserving the relative difficulties.
The mod
Okay, maths over with let's get on to the mod. I've put together a spreadsheet that contains some possible difficulty levels for various levels of theta - ie. how many standard deviations to scale the difficulty up by. See the link at top to download it from RaceDepartment. The three columns at the right, coloured in blue, green, and red include the values you want to copy over to your database.bin file. Blue is 'easiest', then green, then red, corresponding to theta values of 1, 2, and 3 times the standard deviation to add.
The values are sorted in the default track order you will find when you open the database file with RDE so there's no need to hunt around to make sure the ID's match up.
How to add this mod to your database.bin:
- Open up the database.bin file with RDE
- Find the track_difficulty table
- Highlight and copy the series of difficulty values you want in the Excel spreadsheet
- Highlight all the values in the Legend column of track_difficulty and paste in the values from the Excel sheet
- Save and enjoy slightly less quick but just as aggressive Legend AI!
If this gets some half-decent attention, I'll put together some database.bin files for download in the future.