elden-ring-attack-rating-calculator

A python script to calculate the weapon attack ratings based on your stats, upgrade levels, and affinity for any weapon

Usage

python main.py --name "NAME"
               [--affinity "AFFINITY"]
               UPGRADE
               STRENGTH
               DEXTERITY
               INTELLIGENCE
               FAITH
               ARCANE

python main.py --name "Dagger" --affinity "Flame Art" 10 20 30 10 15 40

Implementation Notes

The code is entirely based off the work from u/TarnishedSpreadsheet which uses game data files to figure out the formulas and coefficients. It makes extensive use of lookup tables as a result.

There are 5 Stats:

• Strength (stre)
• Dexterity (dext)
• Intelligence (inte)
• Faith (fait)
• Arcane (arca)

There are 5 Damage Types:

• Physical
• Magic
• Fire
• Lightning
• Holy

The typical flow is as follows:

1. Choose Stats (allocate strength, dexterity, intelligence, faith and arcane).
2. Choose Weapon Characteristics:
   • Name
   • Affinity (if applicable: Standard, Heavy, Keen, Quality, Magic, Cold, Fire, Lightning, Holy, Blood, Poison, Occult, etc)
   • Upgrade Level (Up to +10 for uniques, or +25 for standard).
3. Using the Name and Affinity, to determine the Weapon Info, for each damage type (Phys/Magic/:
   • Formula Set : This is a group of four formulas and coefficients which caclulate a Scaling Factor given a Stat.
   • Scaling Config: This is whether a DamageType is scaled by Stat (25 possible pairs, organized in a tuple of booleans)
4. Once we know the Formula Set and Scaling Config, we can apply the formulas and compute the Scaling Factor for each DamageType-Stat pair.
5. Using the Name, Affinity and Upgrade Level we can lookup:
   • Attack Rating for each DamageType
   • Scaling Rating for each Stat
6. Using the Attack Rating, Scaling Rating, and Scaling Factor (for each Stat) we can compute the final Attack Rating of the weapon.

To Do

• Refactor lookup_*.py scripts for better naming:
  • lookup_scaling_id_to_config can be combined with lookup_weapon_info
  • Change the names for the lookup table helpers to be less verbose
• Passive Effects like Blood, Frost, Poison, etc
• Sorcery and Incantation Scaling

Credit

All the formulas and calculation comes from the creators of this spreadsheet:

https://docs.google.com/spreadsheets/d/1JdkVb-llZHPhMD-IwO8d2o1jtHhiTIXbcJv0YzC8ZHY/copy

https://www.reddit.com/r/Eldenring/comments/tbco46/elden_ring_weapon_calculator/i0xlhi1/?context=3

u/TarnishedSpreadsheet