1 files changed, 239 insertions, 0 deletions
diff --git a/patches/server/0823-Custom-Potion-Mixes.patch b/patches/server/0823-Custom-Potion-Mixes.patch
new file mode 100644
index 0000000000..83f97585c5
--- /dev/null
+++ b/patches/server/0823-Custom-Potion-Mixes.patch
@@ -0,0 +1,239 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Thu, 7 Oct 2021 14:34:55 -0700
+Subject: [PATCH] Custom Potion Mixes
+
+
+diff --git a/src/main/java/io/papermc/paper/potion/PaperPotionMix.java b/src/main/java/io/papermc/paper/potion/PaperPotionMix.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..6b0bed550763f34e18c9e92f9a47ec0c945b2c8b
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/potion/PaperPotionMix.java
+@@ -0,0 +1,13 @@
++package io.papermc.paper.potion;
++
++import net.minecraft.world.item.ItemStack;
++import net.minecraft.world.item.crafting.Ingredient;
++import org.bukkit.craftbukkit.inventory.CraftItemStack;
++import org.bukkit.craftbukkit.inventory.CraftRecipe;
++
++public record PaperPotionMix(ItemStack result, Ingredient input, Ingredient ingredient) {
++
++    public PaperPotionMix(PotionMix potionMix) {
++        this(CraftItemStack.asNMSCopy(potionMix.getResult()), CraftRecipe.toIngredient(potionMix.getInput(), true), CraftRecipe.toIngredient(potionMix.getIngredient(), true));
++    }
++}
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 56c49187c63fd124738ed1efe634ddfcd0f846f9..41543b69934c5e5c050636482c7d2b93a6bab796 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -2043,6 +2043,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             this.worldData.setDataPackConfig(MinecraftServer.getSelectedPacks(this.packRepository));
+             this.resources.managers.updateRegistryTags(this.registryAccess());
+             io.papermc.paper.registry.PaperRegistry.clearCaches(); // Paper
++            net.minecraft.world.item.alchemy.PotionBrewing.reload(); // Paper
+             new io.papermc.paper.event.server.ServerResourcesReloadedEvent(cause).callEvent(); // Paper
+             // Paper start
+             if (Thread.currentThread() != this.serverThread) {
+diff --git a/src/main/java/net/minecraft/world/inventory/BrewingStandMenu.java b/src/main/java/net/minecraft/world/inventory/BrewingStandMenu.java
+index a809e8a903f98fcbcea3184fac6dfd04adc735f9..13720c2df8ac37d020d4a785e48c45877edf74b9 100644
+--- a/src/main/java/net/minecraft/world/inventory/BrewingStandMenu.java
++++ b/src/main/java/net/minecraft/world/inventory/BrewingStandMenu.java
+@@ -168,7 +168,7 @@ public class BrewingStandMenu extends AbstractContainerMenu {
+         }
+ 
+         public static boolean mayPlaceItem(ItemStack stack) {
+-            return stack.is(Items.POTION) || stack.is(Items.SPLASH_POTION) || stack.is(Items.LINGERING_POTION) || stack.is(Items.GLASS_BOTTLE);
++            return stack.is(Items.POTION) || stack.is(Items.SPLASH_POTION) || stack.is(Items.LINGERING_POTION) || stack.is(Items.GLASS_BOTTLE) || PotionBrewing.isCustomInput(stack); // Paper
+         }
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/item/alchemy/PotionBrewing.java b/src/main/java/net/minecraft/world/item/alchemy/PotionBrewing.java
+index eee96f87f68d9146b1d19d5923d073fb5c39d507..5d86895f93cadcf0b123263c2a6f718fedcb24ac 100644
+--- a/src/main/java/net/minecraft/world/item/alchemy/PotionBrewing.java
++++ b/src/main/java/net/minecraft/world/item/alchemy/PotionBrewing.java
+@@ -14,6 +14,7 @@ public class PotionBrewing {
+     public static final int BREWING_TIME_SECONDS = 20;
+     private static final List<PotionBrewing.Mix<Potion>> POTION_MIXES = Lists.newArrayList();
+     private static final List<PotionBrewing.Mix<Item>> CONTAINER_MIXES = Lists.newArrayList();
++    private static final it.unimi.dsi.fastutil.objects.Object2ObjectLinkedOpenHashMap<org.bukkit.NamespacedKey, io.papermc.paper.potion.PaperPotionMix> CUSTOM_MIXES = new it.unimi.dsi.fastutil.objects.Object2ObjectLinkedOpenHashMap<>(); // Paper
+     private static final List<Ingredient> ALLOWED_CONTAINERS = Lists.newArrayList();
+     private static final Predicate<ItemStack> ALLOWED_CONTAINER = (stack) -> {
+         for(Ingredient ingredient : ALLOWED_CONTAINERS) {
+@@ -26,7 +27,7 @@ public class PotionBrewing {
+     };
+ 
+     public static boolean isIngredient(ItemStack stack) {
+-        return isContainerIngredient(stack) || isPotionIngredient(stack);
++        return isContainerIngredient(stack) || isPotionIngredient(stack) || isCustomIngredient(stack); // Paper
+     }
+ 
+     protected static boolean isContainerIngredient(ItemStack stack) {
+@@ -66,6 +67,11 @@ public class PotionBrewing {
+     }
+ 
+     public static boolean hasMix(ItemStack input, ItemStack ingredient) {
++        // Paper start
++        if (hasCustomMix(input, ingredient)) {
++            return true;
++        }
++        // Paper end
+         if (!ALLOWED_CONTAINER.test(input)) {
+             return false;
+         } else {
+@@ -103,6 +109,13 @@ public class PotionBrewing {
+ 
+     public static ItemStack mix(ItemStack ingredient, ItemStack input) {
+         if (!input.isEmpty()) {
++            // Paper start
++            for (var mix : CUSTOM_MIXES.values()) {
++                if (mix.input().test(input) && mix.ingredient().test(ingredient)) {
++                    return mix.result().copy();
++                }
++            }
++            // Paper end
+             Potion potion = PotionUtils.getPotion(input);
+             Item item = input.getItem();
+             int i = 0;
+@@ -127,6 +140,54 @@ public class PotionBrewing {
+         return input;
+     }
+ 
++    // Paper start
++    public static boolean isCustomIngredient(ItemStack stack) {
++        for (var mix : CUSTOM_MIXES.values()) {
++            if (mix.ingredient().test(stack)) {
++                return true;
++            }
++        }
++        return false;
++    }
++
++    public static boolean isCustomInput(ItemStack stack) {
++        for (var mix : CUSTOM_MIXES.values()) {
++            if (mix.input().test(stack)) {
++                return true;
++            }
++        }
++        return false;
++    }
++
++    private static boolean hasCustomMix(ItemStack input, ItemStack ingredient) {
++        for (var mix : CUSTOM_MIXES.values()) {
++            if (mix.input().test(input) && mix.ingredient().test(ingredient)) {
++                return true;
++            }
++        }
++        return false;
++    }
++
++    public static void addPotionMix(io.papermc.paper.potion.PotionMix mix) {
++        if (CUSTOM_MIXES.containsKey(mix.getKey())) {
++            throw new IllegalArgumentException("Duplicate recipe ignored with ID " + mix.getKey());
++        }
++        CUSTOM_MIXES.putAndMoveToFirst(mix.getKey(), new io.papermc.paper.potion.PaperPotionMix(mix));
++    }
++
++    public static boolean removePotionMix(org.bukkit.NamespacedKey key) {
++        return CUSTOM_MIXES.remove(key) != null;
++    }
++
++    public static void reload() {
++        POTION_MIXES.clear();
++        CONTAINER_MIXES.clear();
++        ALLOWED_CONTAINERS.clear();
++        CUSTOM_MIXES.clear();
++        bootStrap();
++    }
++    // Paper end
++
+     public static void bootStrap() {
+         addContainer(Items.POTION);
+         addContainer(Items.SPLASH_POTION);
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/BrewingStandBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BrewingStandBlockEntity.java
+index 3d688e334c7287f41460bd866bfd1155e8bb55d2..55006724ccec9f3de828ec18693728e9741ff65f 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/BrewingStandBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/BrewingStandBlockEntity.java
+@@ -335,7 +335,7 @@ public class BrewingStandBlockEntity extends BaseContainerBlockEntity implements
+ 
+     @Override
+     public boolean canPlaceItem(int slot, ItemStack stack) {
+-        return slot == 3 ? PotionBrewing.isIngredient(stack) : (slot == 4 ? stack.is(Items.BLAZE_POWDER) : (stack.is(Items.POTION) || stack.is(Items.SPLASH_POTION) || stack.is(Items.LINGERING_POTION) || stack.is(Items.GLASS_BOTTLE)) && this.getItem(slot).isEmpty());
++        return slot == 3 ? PotionBrewing.isIngredient(stack) : (slot == 4 ? stack.is(Items.BLAZE_POWDER) : (stack.is(Items.POTION) || stack.is(Items.SPLASH_POTION) || stack.is(Items.LINGERING_POTION) || stack.is(Items.GLASS_BOTTLE) || PotionBrewing.isCustomInput(stack)) && this.getItem(slot).isEmpty()); // Paper
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 418ec6b1fb062ad5b4642c2a5ccc32775f8c8b48..b819ec350d230ea9425b4c1512dba2438408f066 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -285,6 +285,7 @@ public final class CraftServer implements Server {
+     private final io.papermc.paper.datapack.PaperDatapackManager datapackManager; // Paper
+     public static Exception excessiveVelEx; // Paper - Velocity warnings
+     private final io.papermc.paper.logging.SysoutCatcher sysoutCatcher = new io.papermc.paper.logging.SysoutCatcher(); // Paper
++    private final CraftPotionBrewer potionBrewer = new CraftPotionBrewer(); // Paper
+ 
+     static {
+         ConfigurationSerialization.registerClass(CraftOfflinePlayer.class);
+@@ -311,7 +312,7 @@ public final class CraftServer implements Server {
+         Enchantments.SHARPNESS.getClass();
+         org.bukkit.enchantments.Enchantment.stopAcceptingRegistrations();
+ 
+-        Potion.setPotionBrewer(new CraftPotionBrewer());
++        Potion.setPotionBrewer(potionBrewer); // Paper
+         MobEffects.BLINDNESS.getClass();
+         PotionEffectType.stopAcceptingRegistrations();
+         // Ugly hack :(
+@@ -2896,5 +2897,10 @@ public final class CraftServer implements Server {
+         return datapackManager;
+     }
+ 
++    @Override
++    public CraftPotionBrewer getPotionBrewer() {
++        return this.potionBrewer;
++    }
++
+     // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java
+index 10ace7bb17c36bfefc584a6322841ab6ea4c866f..71486c08db28caf89f2366e082f6f6fab5609b71 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java
+@@ -13,6 +13,11 @@ public interface CraftRecipe extends Recipe {
+     void addToCraftingManager();
+ 
+     default Ingredient toNMS(RecipeChoice bukkit, boolean requireNotEmpty) {
++        // Paper start
++        return toIngredient(bukkit, requireNotEmpty);
++    }
++    static Ingredient toIngredient(RecipeChoice bukkit, boolean requireNotEmpty) {
++        // Paper end
+         Ingredient stack;
+ 
+         if (bukkit == null) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionBrewer.java b/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionBrewer.java
+index 8fdc9a3bb2f1b6bdc6c2c96f8ade7e9cd88ea4e0..a0b0c64b819b8f713eeea78210e276664e30e66e 100644
+--- a/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionBrewer.java
++++ b/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionBrewer.java
+@@ -49,4 +49,21 @@ public class CraftPotionBrewer implements PotionBrewer {
+     public PotionEffect createEffect(PotionEffectType potion, int duration, int amplifier) {
+         return new PotionEffect(potion, potion.isInstant() ? 1 : (int) (duration * potion.getDurationModifier()), amplifier);
+     }
++
++    // Paper start
++    @Override
++    public void addPotionMix(io.papermc.paper.potion.PotionMix potionMix) {
++        net.minecraft.world.item.alchemy.PotionBrewing.addPotionMix(potionMix);
++    }
++
++    @Override
++    public void removePotionMix(org.bukkit.NamespacedKey key) {
++        net.minecraft.world.item.alchemy.PotionBrewing.removePotionMix(key);
++    }
++
++    @Override
++    public void resetPotionMixes() {
++        net.minecraft.world.item.alchemy.PotionBrewing.reload();
++    }
++    // Paper end
+ }