Added a field, getter and setter for the last tick a player inputted anything.

src/main/java/dev/micle/loginprotection/data/ProtectedPlayer.java

@@ -9,6 +9,7 @@ public class ProtectedPlayer {
     private int gracePeriodTimeRemaining = 0;
     private final Timer gracePeriodTimer = new Timer();
     private State state;
+    private int lastInputTick = -1;
 
     /**
      * Constructor for a ProtectedPlayer.
@@ -63,6 +64,14 @@ public class ProtectedPlayer {
         this.state = state;
     }
 
+    public int getLastInputTick() {
+        return lastInputTick;
+    }
+
+    public void setLastInputTick(int lastInputTick) {
+        this.lastInputTick = lastInputTick;
+    }
+
     public enum State {
         JOINING,
         AFK,