Coin Slot Event Checker Pseudocode

Function InitCoinSlotChecker():

- Set LastCoinSlotState to the current state of the coin slot input (e.g., PORTBbits.RB4).

- Initialize Coins to 0.

Function Check4Coin():

- Initialize ReturnVal to false (indicates whether an event was detected).

- If the GameFSM is in the Idle state (QueryGameFSM() == Idle):

     1. Read the current state of the coin slot into CurrentCoinSlotState (e.g., PORTBbits.RB4).

     2. Get the current time using ES_Timer_GetTime(), and store it in CurrentTickCount.

     **Coin Detection Logic:**

     - If CurrentCoinSlotState == 0 (coin detected) and Coins < 1:

         - Set ReturnVal to true (event detected).

         - Increment Coins by 1.

         - Update LastTickCount to the current time.

         - Create a new event, ThisEvent, with EventType = COIN_INSERT.

         - Post ThisEvent to the GameFSM using PostGameFSM().

     **Reset Coin Counter:**

     - If more than 300ms have passed since LastTickCount (CurrentTickCount - LastTickCount > 300):

         - Reset Coins to 0.

     - Update LastCoinSlotState to the current value of CurrentCoinSlotState.

- Return ReturnVal (indicates whether an event was posted).