Soil Draft Physics

Your tractor finally feels the ground beneath its wheels. Implements pull harder in heavy, wet clay than in dry sand, and tires provide appropriate grip based on their size, load, and pressure.

Features:
- Realistic draft force requirements for implements (plows, subsoilers, cultivators, disc harrows, seeders) based on agricultural engineering standards
- Uses soil types and moisture from Precision Farming (also works without PF)
- Tire traction and rolling resistance based on real tire dimensions, wheel load, and tire pressure
- Automatic tire pressure adjustment based on axle load, with CTIS support in the 4x4 Traction System
- Clean, movable HUD (Ctrl+Shift+H to toggle, Ctrl+Shift+M to move)
- Draft force and tire grip are calculated using real soil conditions and engineering standards (ASABE D497 draft and Brixius traction model)
- Draft depends on implement type, working width, depth, and speed
- Soil types from Precision Farming (sand to clay loam); works without PF using an average soil
- Soil moisture varies by soil type (sand dries quickly, clay stays heavy for days)
- Tire/soil traction based on real tire sizes, wheel load, and tire pressure; rolling resistance in soft soil
- Tire pressure based on real axle load; CTIS support with 4x4 Traction System (VarioGrip-style)
- Replaces the game's own draft calculation (no double calculation)
- Settings available in modSettings/FS25_SoilDraftPhysics.xml (intensity, traction scaling)

Note: Not recommended for use together with Mud System Physics or Tractor Terrain Dynamics (tire traction will be automatically handed off to those mods).

Beta version – feedback and log.txt are welcome!