Joystick Event Checker Pseudocode

Function CheckJoystickEvents():

- Initialize ReturnVal to false.

- If QueryGameFSM() equals Wait4Input:

     - Read joystick X and Y positions into joystickVals array using ADC_MultiRead().

     - Assign joystickX = joystickVals[0] and joystickY = joystickVals[1].

     - Check if joystick is within CENTER_THRESHOLD of CENTER_VALUE for both axes:

         - If true, set directionRead to 0 (neutral position detected).

       - If directionRead is 0 (neutral position previously detected):

     - Check for upward movement:

         - If joystickY < CENTER_VALUE - THRESHOLD:

             - Set ThisEvent.EventType to JOYSTICK_UP.

             - Set ThisEvent.EventParam to joystickY.

             - Post ThisEvent to all services using ES_PostAll().

             - Set directionRead to 1 (movement event in progress).

             - Print "Up".

     - Check for downward movement:

         - If joystickY > CENTER_VALUE + THRESHOLD:

             - Set ThisEvent.EventType to JOYSTICK_DOWN.

             - Set ThisEvent.EventParam to joystickY.

             - Post ThisEvent to all services using ES_PostAll().

             - Set directionRead to 1.

             - Print "Down".

     - Check for leftward movement:

         - If joystickX < CENTER_VALUE - THRESHOLD:

             - Set ThisEvent.EventType to JOYSTICK_LEFT.

             - Set ThisEvent.EventParam to joystickX.

             - Post ThisEvent to all services using ES_PostAll().

             - Set directionRead to 1.

             - Print "Left".

     - Check for rightward movement:

         - If joystickX > CENTER_VALUE + THRESHOLD:

             - Set ThisEvent.EventType to JOYSTICK_RIGHT.

             - Set ThisEvent.EventParam to joystickX.

             - Post ThisEvent to all services using ES_PostAll().

             - Set directionRead to 1.

             - Print "Right".

     - Return ReturnVal (true if an event was detected and posted).