Complete behavior

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Complete the setup and attachment steps, then paste this behavior into the attached script.

return {
    on_start = function() rustic.log("info", "Behavior started") end,
    fixed_update = function(dt)
        local x, y, z = rustic.get_translation()
        if rustic.key("KeyW").held then rustic.set_translation(x, y, z + dt) end
    end,
}

The SDK is staged automatically beside the source in an engine temporary directory. You do not install a package, copy the SDK into your game, or write a process loop. Programming > Open Programming Workspace also writes editor support files under .rustic/generated/programming. Regenerate those files after upgrading Rustic. Edit your behavior source, not generated SDK files. Run through Rustic Play so the engine can supply the API and callback state.