PyAccSharedMemory

ACC shared memory reader written in python 😀.

• PyAccSharedMemory
  • Installation
  • Usage
  • DataClass
    • ACC_map
    • PhysicsMap
    • GraphicsMap
    • StaticsMap
    • Wheels
    • CarDamage
    • Vector3f
    • ContactPoint
  • additional information
    • Enums
      • ACC_STATUS
      • ACC_SESSION_TYPE
      • ACC_FLAG_TYPE
      • ACC_PENALTY_TYPE
      • ACC_TRACK_GRIP_STATUS
      • ACC_RAIN_INTENSITY
    • Car Model
      • GT3
      • GT4
      • TC
      • Cup cars

Installation

Simply install the package or copy the pyaccsharedmemory.py file in your project

pip install pyaccsharedmemory

Usage

Basic code example.

from pyaccsharedmemory import accSharedMemory

asm = accSharedMemory()
sm = asm.read_shared_memory()

if (sm is not None):
    print("Physics:")
    print(f"Pad life: {sm.Physics.pad_life}")

    print("Graphics:")
    print(f"Strategy tyre set: {sm.Graphics.penalty.name}")

    print("Static: ")
    print(f"Max RPM: {sm.Static.max_rpm}")

asm.close()

DataClass

Description are moslty a copy past of the ACCSharedMemoryDocumentationV1.x.x.pdf

ACC_map

Field	Type	Description
Physics	PhysicsMap	Data that change at each graphic step. They all refer to the player’s car.
Graphics	GraphicsMap	Data that are updated at each graphical step. They mostly refer to player’s car except for carCoordinates and carID, which refer to the cars currently on track.
Statics	StaticsMap	Data that are initialized when the instance starts and never changes until the instance is closed.

PhysicsMap

Field	Type	Description	Comment
packed_id	int	Current step index
gas	float	Gas pedal input value	From 0.0 to 1.0
brake	float	Brake pedal input value	From 0.0 to 1.0
fuel	float	Amount of fuel remaining in liters
gear	int	Current gear
rpm	int	engine rpm
steer_angle	float	Steering input value	From 0.0 to 1.0
speed_kmh	float	Car speed
velocity	Vector3f	Car velocity vector in global coordinates	Contain 3 floats x, y, z
g_force	Vector3f	Car acceleration vector in global coordinates	Contain 3 floats x, y, z
wheel_slip	Wheels	Tyre slip for each tyre
wheel_pressure	Wheels	Tyre pressure
wheel_angular_s	Wheels	Wheel angular speed in rad/s
tyre_core_temp	Wheels	Tyre rubber core temperature
suspension_travel	Wheels	Suspension travel
tc	float	TC in action
heading	float	Car yaw orientation
pitch	float	Car pitch orientation
roll	float	Car roll orientation
car_damage	CarDamage	Car damage
pit_limiter_on	bool	Pit limiter is on
abs	float	ABS in action
autoshifter_on	bool	Automatic transmission on
turbo_boost	float	Car turbo level
air_temp	float	Air temperature
road_temp	float	Road temperature
local_angular_vel	Vector3f	Car angular velocity vector in local coordinates	Contain 3 floats x, y, z
final_ff	float	Force feedback signal
brake_temp	Wheels	Brake discs temperatures
clutch	float	Clutch pedal input value	From 0.0 to 1.0
is_ai_controlled	bool	Car is controlled by the AI
tyre_contact_point	List of ContactPoint	Tyre contact point global coordinates
tyre_contact_normal	List of ContactPoint	Tyre contact normal
tyre_contact_heading	List of ContactPoint	Tyre contact heading
brake_bias	float	Front brake bias
local_velocity	Vector3f	Car velocity vector in local coordinates
slit_ratio	Wheels	Tyre slip ratio
slit_angle	Wheels	Tyre slip angle
suspension_damage	Wheels	Damage of the suspension	From 0.0 to 0.1 (x30 for in s)
water_temp	float	Water Temperature
brake_pressure	float	Brake pressure
front_brake_compound	int	Brake pad compund front
rear_brake_compound	int	Brake pad compund rear
pad_life	Wheels	Brake pad wear	Pad start at 29mm
disc_life	Wheels	Brake disk wear	Disc start at 32mm
ignition_on	bool	Ignition is on
starter_engine_on	bool	Engine starter on
is_engine_running	bool	Engine running
kerb_vibration	float	Kerb vibrations sent to the FFB
slip_vibration	float	Slip vibrations sent to the FFB
g_vibration	float	G force vibrations sent to the FFB
abs_vibration	float	Abs vibrations sent to the FFB

GraphicsMap

Field	Type	Description	Comment
packed_id	int	Current step index
status	ACC_STATUS
session_type	ACC_SESSION_TYPE
current_time_str	string	Current lap time in string	Limited to 15 char
last_time_str	string	Last lap time in string	Limited to 15 char
best_time_str	string	Best lap time in string	Limited to 15 char
last_sector_time_str	string	Last split time in wide string	Limited to 15 char
completed_lap	int	Number of completed laps
position	int	Current player position
current_time	int	Current lap time in milliseconds
last_time	int	Last lap time in milliseconds
best_time	int	Best lap time in milliseconds
session_time_left	float	Session time left
distance_traveled	float	Distance travelled in the current stint
is_in_pit	bool	Car is pitting
current_sector_index	int	Current track sector
last_sector_time	int	Last sector time in milliseconds
number_of_laps	int	Number of completed laps	Only has a value when the session is over
tyre_compound	string	Tyre compound used
normalized_car_position	float	Car position on track spline
active_cars	int	Number of cars on track
car_coordinates	List of Vector3f	Coordinates of cars on track	60 car max
car_id	List of int	Car IDs of cars on track	60 car max
player_car_id	int	Player Car ID
penaltyTime	float	Penalty time to wait
flag	ACC_FLAG_TYPE
penalty	ACC_PENALTY_TYPE		Added DSQ for driving the wrong way with value 22, 18 seems not used anymore.
ideal_line_on	bool	Ideal line on
is_in_pit_lane	bool	Car is in pit lane
mandatory_pit_done	bool	Mandatory pit is completed
wind_speed	float	Wind speed	In m/s
wind_direction	float	wind direction	In Radian
is_setup_menu_visible	bool	Is in setup menu
main_display_index	int	Current car main display index
secondary_display_index	int	Current car secondary display index
tc_level	int	Traction control level
tc_cut_level	int	Traction control cut level
engine_map	int	Current engine map
abs_level	int	ABS level
fuel_per_lap	float	Average fuel consumed per lap in liters
rain_light	bool	Rain lights on
flashing_light	bool	Flashing lights on
light_stage	int	Current lights stage
exhaust_temp	float	Exhaust temperature
wiper_stage	int	Current wiper stage
driver_stint_total_time_left	int	Time the driver is allowed to drive/race	In millisecond
driver_stint_time_left	int	Timethe driverisallowed to drive/stint	In millisecond
rain_tyres	bool	Are rain tyres equipped
session_index	int		idk wtf is this
used_fuel	float	Used fuel since last time refueling
delta_lap_time_str	string	Delta time in string
delta_lap_time	int	Delta time time in milliseconds
estimated_lap_time_str	string	Estimated lap time in string
estimated_lap_time	int	Estimated lap time in milliseconds
is_delta_positive	bool	Is delta positive
last_sector_time	int	Last split time in milliseconds
is_valid_lap	bool	Is Lap is valid for timing
fuel_estimated_laps	float	Laps possible with current fuel level
track_status	string	Track status	Green, Fast, Optimum, Greasy, Damp, Wet, Flooded
missing_mandatory_pits	int	Mandatory pitstops the player still has to do
clock	int	Time of day in secondso
direction_light_left	bool	Is Blinker left on
direction_light_right	bool	Is Blinker right on
global_yellow	bool	Yellow Flag is out ?
global_yellow_s1	bool	Yellow Flag in Sector 1 is out ?
global_yellow_s2	bool	Yellow Flag in Sector 2 is out ?
global_yellow_s3	bool	Yellow Flag in Sector 3 is out ?
global_white	bool	White Flag is out ?
global_green	bool	Green Flag is out ?
global_chequered	bool	CheckeredFlag is out ?
global_red	bool	RedFlag is out ?
mfd_tyre_set	int	Number of tyre set on the MFD
mfd_fuel_to_add	float	How much fuel to add on the MFD
mfd_tyre_pressure	Wheels	Tyre pressure to add
track_grip_status	ACC_TRACK_GRIP_STATUS	Track grip status
rain_intensity	ACC_RAIN_INTENSITY	Rain intensity
rain_intensity_in_10min	ACC_RAIN_INTENSITY	Rain intensity in 10 min
rain_intensity_in_30min	ACC_RAIN_INTENSITY	Rain intensity in 30 min
current_tyre_set	int	Tyre Set currently in use
strategy_tyre_set	int	Next tyre set per strategy	Original tyre set used for this strategy
gap_ahead	int	Gap to the next car in ms
gap_behind	int	Gap to the previous car in ms

StaticsMap

Field	Type	Description	Comment
sm_version	string	Shared memory version
ac_version	string	Assetto Corsa version
number_of_session	int	Number of sessions
num_cars	int	Number of cars
car_model	string	Name of the car	see carmodel
track	string	Track name
player_name	string	Player name
player_surname	string	Player surname
player_nick	string	Player nickname
sector_count	int	Number of sectors
max_rpm	int	Maximum rpm
max_fuel	float	Maximum fuel tank capacity	why float ? idk ask kunos
penalty_enabled	bool	Penalties enabled
aid_fuel_rate	float	Fuel consumption rate	from 0.0 to 1.0
aid_tyre_rate	float	Tyre wear rate	from 0.0 to 1.0
aid_mechanical_damage	float	Mechanical damage rate	from 0.0 to 1.0
aid_stability	float	Stability control used	from 0.0 to 1.0
aid_auto_clutch	bool	Auto clutch used
pit_window_start	int	Pit window opening time
pit_window_end	int	Pit windows closing time
is_online	bool	If is a multiplayer session
dry_tyres_name	string	Name of the dry tyres
wet_tyres_name	string	Name of the wet tyres

Wheels

Field	Type	Description	Comment
front_left	float	Front left tyre
front_right	float	Front right tyre
rear_left	float	Rear left tyre
rear_right	float	Rear right tyre

CarDamage

Field	Type	Description	Comment
front	float	Damage at the front of the car	from 0.0 to idfk (multiply by 0.284 to get the time in second)
rear	float	Damage at the rear of the car	from 0.0 to idfk (multiply by 0.284 to get the time in second)
left	float	Damage at the left of the car	from 0.0 to idfk (multiply by 0.284 to get the time in second)
right	float	Damage at the right of the car	from 0.0 to idfk (multiply by 0.284 to get the time in second)
center	float	Total damage of the car	from 0.0 to idfk (multiply by 0.284 to get the time in second)

Vector3f

Field	Type
x	float
y	float
z	float

ContactPoint

Field	Type
front_left	Vector3f
front_right	Vector3f
rear_left	Vector3f
rear_right	Vector3f

additional information

Enums

ACC_STATUS

Name	Value
ACC_OFF	0
ACC_REPLAY	1
ACC_LIVE	2
ACC_PAUSE	3

ACC_SESSION_TYPE

Name	Value
ACC_UNKNOW	-1
ACC_PRACTICE	0
ACC_QUALIFY	1
ACC_RACE	2
ACC_HOTLAP	3
ACC_TIME_ATTACK	4
ACC_DRIFT	5
ACC_DRAG	6
ACC_HOTSTINT	7
ACC_HOTLAPSUPERPOLE	8

ACC_FLAG_TYPE

Name	Value
ACC_NO_FLAG	0
ACC_BLUE_FLAG	1
ACC_YELLOW_FLAG	2
ACC_BLACK_FLAG	3
ACC_WHITE_FLAG	4
ACC_CHECKERED_FLAG	5
ACC_PENALTY_FLAG	6
ACC_GREEN_FLAG	7
ACC_ORANGE_FLAG	8

ACC_PENALTY_TYPE

Name	Value
Unknown	-1
No_penalty	0
DriveThrough_Cutting	1
StopAndGo_10_Cutting	2
StopAndGo_20_Cutting	3
StopAndGo_30_Cutting	4
Disqualified_Cutting	5
RemoveBestLaptime_Cutting	6
DriveThrough_PitSpeeding	7
StopAndGo_10_PitSpeeding	8
StopAndGo_20_PitSpeeding	9
StopAndGo_30_PitSpeeding	10
Disqualified_PitSpeeding	11
RemoveBestLaptime_PitSpeeding	12
Disqualified_IgnoredMandatoryPit	13
PostRaceTime	14
Disqualified_Trolling	15
Disqualified_PitEntry	16
Disqualified_PitExit	17
Disqualified_WrongWay ????	18
DriveThrough_IgnoredDriverStint	19
Disqualified_IgnoredDriverStint	20
Disqualified_ExceededDriverStintLimit	21
Disqualified_WrongWay	22

ACC_TRACK_GRIP_STATUS

Name	Value
ACC_GREEN	0
ACC_FAST	1
ACC_OPTIMUM	2
ACC_GREASY	3
ACC_DAMP	4
ACC_WET	5
ACC_FLOODED	6

ACC_RAIN_INTENSITY

Name	Value
ACC_NO_RAIN	0
ACC_DRIZZLE	1
ACC_LIGHT_RAIN	2
ACC_MEDIUM_RAIN	3
ACC_HEAVY_RAIN	4
ACC_THUNDERSTORM	5

Car Model

GT3

Name	Kunos ID
Aston Martin Vantage V12 GT3 2013	amr_v12_vantage_gt3
Audi R8 LMS 2015	audi_r8_lms
Bentley Continental GT3 2015	bentley_continental_gt3_2016
Bentley Continental GT3 2018	bentley_continental_gt3_2018
BMW M6 GT3 2017	bmw_m6_gt3
Emil Frey Jaguar G3 2012	jaguar_g3
Ferrari 488 GT3 2018	ferrari_488_gt3
Honda NSX GT3 2017	honda_nsx_gt3
Lamborghini Gallardo G3 Reiter 2017	lamborghini_gallardo_rex
Lamborghini Huracan GT3 2015	lamborghini_huracan_gt3
Lexus RCF GT3 2016	lexus_rc_f_gt3
McLaren 650S GT3 2015	mclaren_650s_gt3
Mercedes AMG GT3 2015	mercedes_amg_gt3
Nissan GTR Nismo GT3 2015	nissan_gt_r_gt3_2017
Nissan GTR Nismo GT3 2018	nissan_gt_r_gt3_2018
Porsche 991 GT3 R 2018	porsche_991_gt3_r
Aston Martin V8 Vantage GT3 2019	amr_v8_vantage_gt3
Audi R8 LMS Evo 2019	audi_r8_lms_evo
Honda NSX GT3 Evo 2019	honda_nsx_gt3_evo
Lamborghini Huracan GT3 EVO 2019	lamborghini_huracan_gt3_evo
McLaren 720S GT3 2019	mclaren_720s_gt3
Porsche 911 II GT3 R 2019	porsche_991ii_gt3_r
Ferrari 488 GT3 Evo 2020	ferrari_488_gt3_evo
Mercedes AMG GT3 Evo 2020	mercedes_amg_gt3_evo
BMW M4 GT3 2021	bmw_m4_gt3
Audi R8 LMS Evo II 2022	audi_r8_lms_evo_ii

GT4

Name	Kunos ID
Alpine A110 GT4 2018	alpine_a110_gt4
Aston Martin Vantage AMR GT4 2018	amr_v8_vantage_gt4
Audi R8 LMS GT4 2016	audi_r8_gt4
BMW M4 GT4 2018	bmw_m4_gt4
Chevrolet Camaro GT4 R 2017	chevrolet_camaro_gt4r
Ginetta G55 GT4 2012	ginetta_g55_gt4
Ktm Xbow GT4 2016	ktm_xbow_gt4
Maserati Gran Turismo MC GT4 2016	maserati_mc_gt4
McLaren 570s GT4 2016	mclaren_570s_gt4
Mercedes AMG GT4 2016	mercedes_amg_gt4
Porsche 718 Cayman GT4 MR 2019	porsche_718_cayman_gt4_mr

TC

Name	Kunos ID
BMW M2 Cup 2020	bmw_m2_cs_racing

Cup cars

Name	Kunos ID
Porsche9 91 II GT3 Cup 2017	porsche_991ii_gt3_cup
Lamborghini Huracan ST 2015	lamborghini_huracan_st
Ferrari 488 Challenge Evo 2020	ferrari_488_challenge_evo
Lamborghini Huracan ST Evo2 2021	lamborghini_huracan_st_evo2
Porsche 992 GT3 Cup 2021	porsche_992_gt3_cup