1 files changed, 114 insertions, 0 deletions
diff --git a/patches/server/0855-API-for-updating-recipes-on-clients.patch b/patches/server/0855-API-for-updating-recipes-on-clients.patch
new file mode 100644
index 0000000000..4d2861d204
--- /dev/null
+++ b/patches/server/0855-API-for-updating-recipes-on-clients.patch
@@ -0,0 +1,114 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Sat, 21 Aug 2021 17:25:38 -0700
+Subject: [PATCH] API for updating recipes on clients
+
+
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index c6316960e9765239fbf117702b3c81c542839643..b2fab1e6a83b2603aeb8565b25022f9e99a61029 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -1484,6 +1484,13 @@ public abstract class PlayerList {
+     }
+ 
+     public void reloadResources() {
++        // Paper start - API for updating recipes on clients
++        this.reloadAdvancementData();
++        this.reloadTagData();
++        this.reloadRecipeData();
++    }
++    public void reloadAdvancementData() {
++        // Paper end - API for updating recipes on clients
+         // CraftBukkit start
+         /*Iterator iterator = this.advancements.values().iterator();
+ 
+@@ -1499,7 +1506,15 @@ public abstract class PlayerList {
+         }
+         // CraftBukkit end
+ 
++        // Paper start - API for updating recipes on clients
++    }
++    public void reloadTagData() {
++        // Paper end - API for updating recipes on clients
+         this.broadcastAll(new ClientboundUpdateTagsPacket(TagNetworkSerialization.serializeTagsToNetwork(this.registries)));
++        // Paper start - API for updating recipes on clients
++    }
++    public void reloadRecipeData() {
++        // Paper end - API for updating recipes on clients
+         ClientboundUpdateRecipesPacket packetplayoutrecipeupdate = new ClientboundUpdateRecipesPacket(this.server.getRecipeManager().getOrderedRecipes());
+         Iterator iterator1 = this.players.iterator();
+ 
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 24097256203990a818aab2716fdb8a4a672a1daa..5400493e48b508310adfb51c23b63ff53aeda49f 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -1165,6 +1165,18 @@ public final class CraftServer implements Server {
+         ReloadCommand.reload(this.console);
+     }
+ 
++    // Paper start - API for updating recipes on clients
++    @Override
++    public void updateResources() {
++        this.playerList.reloadResources();
++    }
++
++    @Override
++    public void updateRecipes() {
++        this.playerList.reloadRecipeData();
++    }
++    // Paper end - API for updating recipes on clients
++
+     private void loadIcon() {
+         this.icon = new CraftIconCache(null);
+         try {
+@@ -1544,6 +1556,13 @@ public final class CraftServer implements Server {
+ 
+     @Override
+     public boolean addRecipe(Recipe recipe) {
++        // Paper start - API for updating recipes on clients
++        return this.addRecipe(recipe, false);
++    }
++
++    @Override
++    public boolean addRecipe(Recipe recipe, boolean resendRecipes) {
++        // Paper end - API for updating recipes on clients
+         CraftRecipe toAdd;
+         if (recipe instanceof CraftRecipe) {
+             toAdd = (CraftRecipe) recipe;
+@@ -1573,6 +1592,11 @@ public final class CraftServer implements Server {
+             }
+         }
+         toAdd.addToCraftingManager();
++        // Paper start - API for updating recipes on clients
++        if (resendRecipes) {
++            this.playerList.reloadRecipeData();
++        }
++        // Paper end - API for updating recipes on clients
+         return true;
+     }
+ 
+@@ -1753,10 +1777,23 @@ public final class CraftServer implements Server {
+ 
+     @Override
+     public boolean removeRecipe(NamespacedKey recipeKey) {
++        // Paper start - API for updating recipes on clients
++        return this.removeRecipe(recipeKey, false);
++    }
++
++    @Override
++    public boolean removeRecipe(NamespacedKey recipeKey, boolean resendRecipes) {
++        // Paper end - API for updating recipes on clients
+         Preconditions.checkArgument(recipeKey != null, "recipeKey == null");
+ 
+         ResourceLocation mcKey = CraftNamespacedKey.toMinecraft(recipeKey);
+-        return this.getServer().getRecipeManager().removeRecipe(mcKey);
++        // Paper start - resend recipes on successful removal
++        boolean removed = this.getServer().getRecipeManager().removeRecipe(mcKey);
++        if (removed && resendRecipes) {
++            this.playerList.reloadRecipeData();
++        }
++        return removed;
++        // Paper end
+     }
+ 
+     @Override