Add PacketOrderK

src/main/java/ac/grim/grimac/checks/impl/packetorder/PacketOrderK.java

@@ -0,0 +1,43 @@
+package ac.grim.grimac.checks.impl.packetorder;
+
+import ac.grim.grimac.checks.Check;
+import ac.grim.grimac.checks.CheckData;
+import ac.grim.grimac.checks.type.PacketCheck;
+import ac.grim.grimac.player.GrimPlayer;
+import com.github.retrooper.packetevents.event.PacketReceiveEvent;
+import com.github.retrooper.packetevents.protocol.packettype.PacketType;
+import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientClientStatus;
+import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientPlayerFlying;
+
+@CheckData(name = "PacketOrderK", experimental = true)
+public class PacketOrderK extends Check implements PacketCheck {
+    public PacketOrderK(final GrimPlayer player) {
+        super(player);
+    }
+
+    private boolean opened, clickedOrClosed;
+
+    @Override
+    public void onPacketReceive(PacketReceiveEvent event) {
+        if (event.getPacketType() == PacketType.Play.Client.CLIENT_STATUS) {
+            if (new WrapperPlayClientClientStatus(event).getAction() == WrapperPlayClientClientStatus.Action.OPEN_INVENTORY_ACHIEVEMENT) {
+                opened = true;
+                if (clickedOrClosed) {
+                    flagAndAlert();
+                }
+            }
+        }
+
+        if (event.getPacketType() == PacketType.Play.Client.CLICK_WINDOW || event.getPacketType() == PacketType.Play.Client.CLOSE_WINDOW) {
+            clickedOrClosed = true;
+            if (opened && flagAndAlert() && shouldModifyPackets()) {
+                event.setCancelled(true);
+                player.onPacketCancel();
+            }
+        }
+
+        if (WrapperPlayClientPlayerFlying.isFlying(event.getPacketType()) && !player.packetStateData.lastPacketWasTeleport) {
+            opened = clickedOrClosed = false;
+        }
+    }
+}

src/main/java/ac/grim/grimac/manager/CheckManager.java

@@ -95,6 +95,7 @@ public CheckManager(GrimPlayer player) {
                 .put(PacketOrderB.class, new PacketOrderB(player))
                 .put(PacketOrderC.class, new PacketOrderC(player))
                 .put(PacketOrderD.class, new PacketOrderD(player))
+                .put(PacketOrderK.class, new PacketOrderK(player))
                 .put(NoSlowB.class, new NoSlowB(player))
                 .put(SetbackBlocker.class, new SetbackBlocker(player)) // Must be last class otherwise we can't check while blocking packets
                 .build();