From f4817c90130aae971830820e1b518567f22b723c Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Thu, 5 Dec 2024 10:27:55 +0100
Subject: [PATCH] Finish PlayerPickItemEvent

---
 patches/api/Add-PlayerPickItemEvent.patch    | 14 +++++++++-----
 patches/server/Add-PlayerPickItemEvent.patch | 12 +++++++-----
 2 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/patches/api/Add-PlayerPickItemEvent.patch b/patches/api/Add-PlayerPickItemEvent.patch
index 893aad1821..f516720cec 100644
--- a/patches/api/Add-PlayerPickItemEvent.patch
+++ b/patches/api/Add-PlayerPickItemEvent.patch
@@ -67,20 +67,24 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +
 +    /**
 +     * Returns the slot in which the item that will be put into the players hotbar is located.
++     * <p>
++     * Returns {@code -1} if the item is not in the player's inventory and should be spawned in if in creative mode.
 +     *
-+     * @return player inventory slot (0-35 inclusive)
++     * @return player inventory slot (0-35 inclusive, or {@code -1} not taken from the inventory)
 +     */
-+    public @Range(from = 0, to = 35) int getSourceSlot() {
++    public @Range(from = -1, to = 35) int getSourceSlot() {
 +        return this.sourceSlot;
 +    }
 +
 +    /**
 +     * Change the source slot from which the item that will be put in the players hotbar will be taken.
++     * <p>
++     * If set to {@code -1} and the player is in creative mode, the item will be spawned in.
 +     *
-+     * @param sourceSlot player inventory slot (0-35 inclusive)
++     * @param sourceSlot player inventory slot (0-35 inclusive, or {@code -1} not taken from the inventory)
 +     */
-+    public void setSourceSlot(final @Range(from = 0, to = 35) int sourceSlot) {
-+        Preconditions.checkArgument(sourceSlot >= 0 && sourceSlot <= 35, "Source slot must be in range of the player's inventory slot");
++    public void setSourceSlot(final @Range(from = -1, to = 35) int sourceSlot) {
++        Preconditions.checkArgument(sourceSlot >= -1 && sourceSlot <= 35, "Source slot must be in range of the player's inventory slot");
 +        this.sourceSlot = sourceSlot;
 +    }
 +
diff --git a/patches/server/Add-PlayerPickItemEvent.patch b/patches/server/Add-PlayerPickItemEvent.patch
index c13e60ced6..5aaa2ea84b 100644
--- a/patches/server/Add-PlayerPickItemEvent.patch
+++ b/patches/server/Add-PlayerPickItemEvent.patch
@@ -20,19 +20,21 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +            if (!event.callEvent()) {
 +                return;
 +            }
-+            // Paper end - Add PlayerPickItemEvent
++            i = event.getSourceSlot();
  
              if (i != -1) {
-                 if (Inventory.isHotbarSlot(i)) {
+-                if (Inventory.isHotbarSlot(i)) {
 -                    playerinventory.selected = i;
-+                    playerinventory.selected = event.getTargetSlot(); // Paper - Add target slot
++                if (Inventory.isHotbarSlot(i) && Inventory.isHotbarSlot(event.getTargetSlot())) {
++                    playerinventory.selected = event.getTargetSlot();
                  } else {
 -                    playerinventory.pickSlot(i);
-+                    playerinventory.pickSlot(i, event.getTargetSlot()); // Paper - Add target slot
++                    playerinventory.pickSlot(i, event.getTargetSlot());
                  }
              } else if (this.player.hasInfiniteMaterials()) {
 -                playerinventory.addAndPickItem(stack);
-+                playerinventory.addAndPickItem(stack, event.getTargetSlot()); // Paper - Add target slot
++                playerinventory.addAndPickItem(stack, event.getTargetSlot());
++                // Paper end - Add PlayerPickItemEvent
              }
  
              this.player.connection.send(new ClientboundSetHeldSlotPacket(playerinventory.selected));