NEON APIResource-owned vehicle audio

Available in Neon, not standard MTA

Plays a normal or high custom backfire on a vehicle already active in the owned audio system.

Syntax

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bool enginePlayVehicleAudioBackfire(vehicle theVehicle, int mode)

Arguments

theVehiclevehicle

Streamed vehicle with an enabled audio mode, matching model definition, and acquired bank.

modeint

Backfire strength: 1 for normal or 2 for high.

Returns

true when the owning resource played the requested backfire; false for another caller, an inactive vehicle, missing audio state, or a mode other than 1 or 2.

Ownership and lifecycle

One client resource owns the global vehicle-audio lease. Reloading replaces its definitions and restarts the lazy bank state; unloading, resource shutdown, or client teardown stops active audio, restores GTA's vehicle sound, and releases the lease.

Important behavior

• Loading the configuration alone is insufficient; the vehicle must already be active in the sound manager.
• The implementation emits a backfire name internally but does not register it as a built-in client event, so no public event is documented.

Where this comes from

SOURCECLuaEngineDefs.cppClient/mods/deathmatch/logic/luadefs/CLuaEngineDefs.cpp INTRODUCED / EXTENDED0418bcea7Read the commit and why the change was made

RELATED NEON APIS

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Read the system guide →

engineLoadVehicleAudioConfig Acquires the client-wide vehicle-audio lease and loads Soundize-compatible model definitions from the calling resource. engineReloadVehicleAudioConfig Reparses the current owner's definitions and schedules a clean lazy restart of the vehicle-audio banks. engineUnloadVehicleAudioConfig Stops the calling resource's custom vehicle audio, restores GTA audio, and releases the global lease.

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