kubejs pain

.minecraft/kubejs/server_scripts/onebar.js

@@ -0,0 +1,49 @@
+PlayerEvents.tick(e => {
+    const {player, server} = e;
+    const {persistentData: pData} = player;
+
+    pData.slot = player.selectedSlot;
+
+    // ensure the player is only able to use the first 3 hotbar slots
+    server.scheduleInTicks(2, () => {
+        if([0, 1, 2].includes(pData.slot)) return;
+        if (player.selectedSlot === 8) {
+            player.setSelectedSlot(2)
+        }
+        if (player.selectedSlot >= 3) {
+            player.setSelectedSlot(0)
+        }
+        
+    })
+})
+
+
+// `inventory` slots 36-44 are the hotbar slots (0-8)
+PlayerEvents.inventoryChanged(e => {
+    const { player, slot, item, level } = e;
+    const lockedItem = Item.of('kubejs:slotlock');
+
+    for (let i = 0; i < player.inventory.getSize(); i++) {
+        if (i >= 36 && i <= 44) {
+
+            // TODO: Fix this as its just not working.
+            // The intended behavior is that for hotbar slots 4 through 9, they are permanently locked to contain `kubejs:slotlock`,
+            // and any instance of `kubejs:slotlock` in other slots is removed.
+            // if an item *somehow* gets into a locked slot, it is removed, then given back to the player after the slot is locked again.
+
+            // Hotbar slots: Ensure they always contain `kubejs:slotlock`
+            if (!player.inventory.get(i).equals(lockedItem)) {
+                if (!player.inventory.get(i).isEmpty()) {
+                    level.server.runCommandSilent(`clear ${player.username} ${player.inventory.get(i).id} 1`); // Remove incorrect item
+                    level.server.runCommandSilent(`give ${player.username} ${player.inventory.get(i).id} 1`); // Return the item to the player
+                }
+                // player.inventory.set(i, lockedItem); // Force slot to contain `kubejs:slotlock`
+            }
+        } else {
+            // Non-hotbar slots: Remove any extra `kubejs:slotlock`
+            if (player.inventory.get(i)?.equals(lockedItem)) {
+                level.server.runCommand(`clear ${player.username} kubejs:slotlock 1 from ${i}`); // Remove extra instance from specific slot
+            }
+        }
+    }
+});