Use reference to joystick object in control class instead of accessing
the global evaluatedJoystick object
control.hpp:
- add joystick reference to constructor
- add local joystick pointer variable
control.cpp:
- constructor: copy pointer to joystick object
- use methods of joystick reference instead of global object
- update log output of timeout check
config.cpp:
- add joystick object to control object construction
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