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PaperMC/patches/api/0336-Custom-Potion-Mixes.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 7 Oct 2021 14:34:59 -0700
Subject: [PATCH] Custom Potion Mixes
diff --git a/src/main/java/io/papermc/paper/potion/PotionMix.java b/src/main/java/io/papermc/paper/potion/PotionMix.java
new file mode 100644
index 0000000000000000000000000000000000000000..01b2a7c7a6bf328b3f7c30db3be0bfb8156ebc89
--- /dev/null
+++ b/src/main/java/io/papermc/paper/potion/PotionMix.java
@@ -0,0 +1,103 @@
+package io.papermc.paper.potion;
+
+import java.util.Objects;
+import java.util.function.Predicate;
+import org.bukkit.Keyed;
+import org.bukkit.NamespacedKey;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.RecipeChoice;
+import org.jetbrains.annotations.Contract;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Represents a potion mix made in a Brewing Stand.
+ */
+@NullMarked
+public final class PotionMix implements Keyed {
+
+ private final NamespacedKey key;
+ private final ItemStack result;
+ private final RecipeChoice input;
+ private final RecipeChoice ingredient;
+
+ /**
+ * Creates a new potion mix. Add it to the server with {@link org.bukkit.potion.PotionBrewer#addPotionMix(PotionMix)}.
+ *
+ * @param key a unique key for the mix
+ * @param result the resulting itemstack that will appear in the 3 bottom slots
+ * @param input the input placed into the bottom 3 slots
+ * @param ingredient the ingredient placed into the top slot
+ */
+ public PotionMix(final NamespacedKey key, final ItemStack result, final RecipeChoice input, final RecipeChoice ingredient) {
+ this.key = key;
+ this.result = result;
+ this.input = input;
+ this.ingredient = ingredient;
+ }
+
+ /**
+ * Create a {@link RecipeChoice} based on a Predicate. These RecipeChoices are only
+ * valid for {@link PotionMix}, not anywhere else RecipeChoices may be used.
+ *
+ * @param stackPredicate a predicate for an itemstack.
+ * @return a new RecipeChoice
+ */
+ @Contract(value = "_ -> new", pure = true)
+ public static RecipeChoice createPredicateChoice(final Predicate<? super ItemStack> stackPredicate) {
+ return new PredicateRecipeChoice(stackPredicate);
+ }
+
+ @Override
+ public NamespacedKey getKey() {
+ return this.key;
+ }
+
+ /**
+ * Gets the resulting itemstack after the brew has finished.
+ *
+ * @return the result itemstack
+ */
+ public ItemStack getResult() {
+ return this.result;
+ }
+
+ /**
+ * Gets the input for the bottom 3 slots in the brewing stand.
+ *
+ * @return the bottom 3 slot ingredients
+ */
+ public RecipeChoice getInput() {
+ return this.input;
+ }
+
+ /**
+ * Gets the ingredient in the top slot of the brewing stand.
+ *
+ * @return the top slot input
+ */
+ public RecipeChoice getIngredient() {
+ return this.ingredient;
+ }
+
+ @Override
+ public String toString() {
+ return "PotionMix{" +
+ "result=" + this.result +
+ ", base=" + this.input +
+ ", addition=" + this.ingredient +
+ '}';
+ }
+
+ @Override
+ public boolean equals(final Object o) {
+ if (this == o) return true;
+ if (o == null || this.getClass() != o.getClass()) return false;
+ final PotionMix potionMix = (PotionMix) o;
+ return this.key.equals(potionMix.key) && this.result.equals(potionMix.result) && this.input.equals(potionMix.input) && this.ingredient.equals(potionMix.ingredient);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(this.key, this.result, this.input, this.ingredient);
+ }
+}
diff --git a/src/main/java/io/papermc/paper/potion/PredicateRecipeChoice.java b/src/main/java/io/papermc/paper/potion/PredicateRecipeChoice.java
new file mode 100644
index 0000000000000000000000000000000000000000..c252b432a9df5fd7da71a5eecba37a8844820700
--- /dev/null
+++ b/src/main/java/io/papermc/paper/potion/PredicateRecipeChoice.java
@@ -0,0 +1,32 @@
+package io.papermc.paper.potion;
+
+import java.util.function.Predicate;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.RecipeChoice;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+@ApiStatus.Internal
+@NullMarked
+record PredicateRecipeChoice(Predicate<? super ItemStack> itemStackPredicate) implements RecipeChoice, Cloneable {
+
+ @Override
+ @Deprecated
+ public ItemStack getItemStack() {
+ throw new UnsupportedOperationException("PredicateRecipeChoice does not support this");
+ }
+
+ @Override
+ public RecipeChoice clone() {
+ try {
+ return (PredicateRecipeChoice) super.clone();
+ } catch (final CloneNotSupportedException ex) {
+ throw new AssertionError(ex);
+ }
+ }
+
+ @Override
+ public boolean test(final ItemStack itemStack) {
+ return this.itemStackPredicate.test(itemStack);
+ }
+}
diff --git a/src/main/java/org/bukkit/Bukkit.java b/src/main/java/org/bukkit/Bukkit.java
index e2d3e42b403dce454988c3ae3e44bcd89337b1cf..22021582b2f490ea2db87f2d3fe8a99b44d4f457 100644
--- a/src/main/java/org/bukkit/Bukkit.java
+++ b/src/main/java/org/bukkit/Bukkit.java
@@ -2641,6 +2641,15 @@ public final class Bukkit {
public static io.papermc.paper.datapack.DatapackManager getDatapackManager() {
return server.getDatapackManager();
}
+
+ /**
+ * Gets the potion brewer.
+ *
+ * @return the potion brewer
+ */
+ public static @NotNull org.bukkit.potion.PotionBrewer getPotionBrewer() {
+ return server.getPotionBrewer();
+ }
// Paper end
@NotNull
diff --git a/src/main/java/org/bukkit/Server.java b/src/main/java/org/bukkit/Server.java
index 5dd7ce5c008c852dbeb0474a70e9357230406318..178e91f3ad918c1a5600d6e9a14a21d478f7e1df 100644
--- a/src/main/java/org/bukkit/Server.java
+++ b/src/main/java/org/bukkit/Server.java
@@ -2304,5 +2304,12 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
*/
@NotNull
io.papermc.paper.datapack.DatapackManager getDatapackManager();
+
+ /**
+ * Gets the potion brewer.
+ *
+ * @return the potion brewer
+ */
+ @NotNull org.bukkit.potion.PotionBrewer getPotionBrewer();
// Paper end
}
diff --git a/src/main/java/org/bukkit/potion/PotionBrewer.java b/src/main/java/org/bukkit/potion/PotionBrewer.java
index 2072f048e10eba829cef047d854b5a22c8f055a3..c1bcbeef9cb634e6cb8c4b58bf06883c37cc028b 100644
--- a/src/main/java/org/bukkit/potion/PotionBrewer.java
+++ b/src/main/java/org/bukkit/potion/PotionBrewer.java
@@ -4,10 +4,31 @@ import java.util.Collection;
import org.jetbrains.annotations.NotNull;
/**
- * Represents a brewer that can create {@link PotionEffect}s.
+ * Used to manage custom {@link io.papermc.paper.potion.PotionMix}s.
*/
public interface PotionBrewer {
+ // Paper start
+ /**
+ * Adds a new potion mix recipe.
+ *
+ * @param potionMix the potion mix to add
+ */
+ void addPotionMix(@NotNull io.papermc.paper.potion.PotionMix potionMix);
+
+ /**
+ * Removes a potion mix recipe.
+ *
+ * @param key the key of the mix to remove
+ */
+ void removePotionMix(@NotNull org.bukkit.NamespacedKey key);
+
+ /**
+ * Resets potion mixes to their default, removing all custom ones.
+ */
+ void resetPotionMixes();
+ // Paper end
+
/**
* Creates a {@link PotionEffect} from the given {@link PotionEffectType},
* applying duration modifiers and checks.
@@ -16,9 +37,15 @@ public interface PotionBrewer {
* @param duration The duration in ticks
* @param amplifier The amplifier of the effect
* @return The resulting potion effect
+ * @deprecated use {@link PotionEffectType#createEffect(int, int)} instead.
*/
+ @Deprecated(forRemoval = true, since = "1.20.5") // Paper
@NotNull
- public PotionEffect createEffect(@NotNull PotionEffectType potion, int duration, int amplifier);
+ // Paper start - make default
+ default PotionEffect createEffect(@NotNull PotionEffectType potion, int duration, int amplifier) {
+ return potion.createEffect(duration, amplifier);
+ }
+ // Paper end
/**
* Returns a collection of {@link PotionEffect} that would be applied from
@@ -28,9 +55,13 @@ public interface PotionBrewer {
* @return The list of effects
* @deprecated Non-Functional
*/
- @Deprecated
+ @Deprecated(forRemoval = true, since = "1.20.5") // Paper
@NotNull
- public Collection<PotionEffect> getEffectsFromDamage(int damage);
+ // Paper start - make default
+ default Collection<PotionEffect> getEffectsFromDamage(final int damage) {
+ return new java.util.ArrayList<>();
+ }
+ // Paper end
/**
* Returns a collection of {@link PotionEffect} that would be applied from
@@ -43,6 +74,6 @@ public interface PotionBrewer {
* @deprecated Upgraded / extended potions are now their own {@link PotionType} use {@link PotionType#getPotionEffects()} instead
*/
@NotNull
- @Deprecated
+ @Deprecated(forRemoval = true, since = "1.20.5") // Paper
public Collection<PotionEffect> getEffects(@NotNull PotionType type, boolean upgraded, boolean extended);
}
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