Physics mod

[Jfix]

Original syntax by man Kacak.
These are the values I put in for my own use (“sled physics”)
My request is that someone “upload” this in scs file.

SiiNunit
{
physics_data: .phdata
{
# Version of the structure used by the game to reduce some mod compatibility issues.
#
# Changes in individual versions:
# 1 – The thrust_characteristic_viscosity is now scaled by engine torque. When
# loading older version, the old value is divided by 1875.

version: 1

# These coeficients are used for computing autocentering wheel speed.
# The faster vehicle moves and the more steering wheel is turned left or right
# the higher autocentering speed is.
# Given value of speed_coef is for 100km/h velocity (linear raise).
# Given value of angle_coef is for maximum wheel turn (30degrees, linear raise).
# Returning speed coeficient is computed by multiplication of both coeficients.
# When result coeficient is 1, returning speed is exactly the same as full
# turning speed. This balance points define natural limits of steering
# dependent on vehicle speed.
# Ratio_coef defines upper limit of result coeficient (ratio against player).

steering_speed_coef: 3.5 steering_angle_coef: 2.0 steering_ratio_coef: 0.95

# Maximum allowed rotation of the front wheels (degrees)
max_visual_rotation: 42 //35

# Modification of base steering sensitivity depending on truck speed.
# Used only with relative steering (keyboard, joypad).

steering_sensitivity_multiplier_0kmh: 2.0
steering_sensitivity_multiplier_100kmh: 0.4 steering_sensitivity_multiplier_minimum: 0.2 steering_sensitivity_multiplier_maximum: 10.0

# maximum allowed relative angles in degrees between truck and trailer at the fifth wheel
fifth_wheel_pitch: 20
fifth_wheel_roll: 5

# braking difficulty in bad weather
# 0 no weather influence
# 1 no friction
rain_braking_difficulty: 0.4 snow_braking_difficulty: 0.6 brake_torque: 10.0 // 1.0
braking_curve_peak_rel: 1.0
brake_characteristic_rpm: 250.0
brake_balance: 1.1
max_brake_temperature: 400.0
brake_cooling_rate: 0.01
brake_friction_warming_rate: 4.0

# Cabin springing force LUT index 0 – sqrt, 1 – power, 2 – linpower, 3 – linear
cabin_springing_force_index_pitch: 1
cabin_springing_force_index_roll: 3
cabin_damping_force_index_pitch: 2
cabin_damping_force_index_roll: 3

cabin_maximum_pitch_speed: 8.0
cabin_maximum_roll_speed: 2.0 cabin_max_pitch_angle_front: 7.0
cabin_max_pitch_angle_rear: 4.0 cabin_max_roll_angle: 4.0 cabin_pitch_force_scaling: 0.5 cabin_pitch_damping: 3.0 cabin_roll_force_scaling: 0.5 cabin_roll_damping: 4.5

cabin_mass: 500.0 ai_truck_mass: 13375.0
ai_trailer_mass: 25425.0
wheel_mass: 700.0
ai_car_mass: 2000.0

# Springing force LUT index
# axles springing 0=soft progressive; 1=soft; 2=hard
springing_force_index_front: 0
springing_force_index_rear: 0 springing_force_index_trailer: 0 # Springing force working point
# 0=wheel on the ground; 1=max. high point
springing_working_point_front: 0.40 springing_working_point_rear: 0.70 springing_working_point_trailer: 0.50 # Damping force LUT index
# 0=linear; 1=convex; 2=concave
damping_force_index_front: 2 damping_force_index_rear: 2 damping_force_index_trailer: 2 # Maximum speed as damping curve input
damping_speed_scaling_front: 3.175
damping_speed_scaling_rear: 4.0
damping_speed_scaling_trailer: 4.5
sway_bar_stiffness_factor: 0.0

# Scaling of the damping curve
damping_scaling_front: 1.0 damping_scaling_rear: 1.6
damping_scaling_trailer: 1.4 user_engine_boost: 1.0

thrust_characteristic_viscosity: 0.16
transmission_viscosity: 0.1 transmission_viscosity_retarder: 1.0
wheel_viscosity: 0.1
clutch_viscosity: 1.0 inertia_scaling_const: 1.0 transmission_rel_flywheel_inertia: 1.0

# approximate air resistance: resistant_force = air_resistance * sqr(speed)
air_resistance: 3.0

# friction parameters
# stiffness of tyre material
bristle_stiffness_longitudinal_factor: 0.5 //1.0
bristle_stiffness_lateral_factor: 0.5 //1.0 # damping of tyre deformation
bristle_damping_longitudinal_factor: 0.7 //1.0
bristle_damping_lateral_factor: 0.7 //1.0
# coefficients related to wheel slipping
slip_longitudinal_factor: 1.0
slip_lateral_factor: 1.0

}
}

[Jfix]

Original syntax by mantab and Kacab.

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