hydrosim-sdk 1.2.0

HydroSim Shared Memory SDK

HydroSim SDK Python

This is a python package for connecting to the Shared Memory API of the boat racing sim HydroSim.

Install

The package can be installed with pip.

pip install hydrosim_sdk

Usage

First import the HydroSimSDK.

from hydrosim_sdk import HydroSimSDK

Then create an instance of the SDK.

hydrosim = HydroSimSDK()

This will automatically start a thread that reads from the Memory Mapped Files that HydroSim writes to at 60hz.

The data can be accessed through several member properties.

Note: You can look at the hydrosim.running property to check if the game is currently running.

• hydrosim.hydro_sim - Returns the game and API version and a tick value that will increment as long as the game is running.
• hydrosim.telemetry - Telemetry data for the local player
• hydrosim.timing - Live timing data for all drivers.
• hydrosim.spectators - Spectators connected to the server.
• hydrosim.course_info - Information about the current course and layout.
• hydrosim.server - Information about the currently connected server, including rules.
• hydrosim.session - Session time and status data.
• hydrosim.buoys - Location and state of all the buoys.
• hydrosim.chat_messages - Chat messages that have been received.

Dealing with multiple instances

In case you need to work with multiple instances of HydroSim, for instance, if running multiple dedicated servers on the same machine.

You can pass the command line parameter -mmapName with any string value when launching HydroSim. This will append the name to the default memory mapped file names.

For instance if you pass -mmapName "Server1", then the names will change from:

hydro_sim_file_name = "Local\\HydroSim"
telemetry_file_name = "Local\\HydroSimTelemetry"
session_file_name = "Local\\HydroSimSession"
timing_file_name = "Local\\HydroSimTiming"
spectators_file_name = "Local\\HydroSimSpectators"
course_info_file_name = "Local\\HydroSimCourseInfo"
buoys_file_name = "Local\\HydroSimBuoys"
server_file_name = "Local\\HydroSimServerSettings"
chat_file_name = "Local\\HydroSimChat"

to

hydro_sim_file_name = "Local\\HydroSim.Server1"
telemetry_file_name = "Local\\HydroSimTelemetry.Server1"
session_file_name = "Local\\HydroSimSession.Server1"
timing_file_name = "Local\\HydroSimTiming.Server1"
spectators_file_name = "Local\\HydroSimSpectators.Server1"
course_info_file_name = "Local\\HydroSimCourseInfo.Server1"
buoys_file_name = "Local\\HydroSimBuoys.Server1"
server_file_name = "Local\\HydroSimServerSettings.Server1"
chat_file_name = "Local\\HydroSimChat.Server1"

To connect the python SDK to this instance, you then need to specify the name to the HydroSimSDK constructor.

hydrosim = HydroSimSDK(mmap_name='Server1')

Some commands can be sent to the game as well. This requires enabling commands when instantiating the HydroSimSDK.

hydrosim = HydroSimSDK(enable_commands=True)

Most of the commands will only work if the local instance over HydroSim is running as a server. The following are commands that can be sent to the game.

hydrosim.commands.send_chat(message: str, targetId=-1)
hydrosim.commands.change_course(course: str)
hydrosim.commands.change_session(session: SessionType)
hydrosim.commands.set_server_settings(server_settings: ServerSettingsCommandIPC)
hydrosim.commands.set_rules(rules: RuleCommandIPC)
hydrosim.commands.add_penalty(
    connectionId: int, infraction: InfractionTypes, severity: SeverityTypes, lap: int
)
hydrosim.commands.remove_penalty(
    connectionId: int, infraction: InfractionTypes, severity: SeverityTypes, lap: int
)
hydrosim.commands.revoke_admin(connectionId: int)
hydrosim.commands.leave_water(connectionId: int)
hydrosim.commands.kick(connectionId: int)
hydrosim.commands.make_admin(connectionId: int, admin_type: ClientTypes)

There are also callback functions that can be passed to HydroSimSDK, so you don't have to make your own loop.

def update(hydrosim: HydroSimSDK):
    # Called after all data has been updated.
    pass

def session_changed(hydrosim: HydroSimSDK):
    # Called only when session changes, this also happens when course changed.
    pass

hydrosim = HydroSimSDK(update_cb=update, session_changed_cb=session_changed)

while True:
    time.sleep(60)