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bffb08c2f9
The Paper method was chosen for deprecation because it was more restrictive in that it has an isGliding check.
151 lines
6.9 KiB
Diff
151 lines
6.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Fri, 20 Aug 2021 13:03:21 -0700
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Subject: [PATCH] Get entity default attributes
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== AT ==
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public net.minecraft.world.entity.ai.attributes.AttributeSupplier getAttributeInstance(Lnet/minecraft/world/entity/ai/attributes/Attribute;)Lnet/minecraft/world/entity/ai/attributes/AttributeInstance;
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diff --git a/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeInstance.java b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeInstance.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..12135ffeacd648f6bc4d7d327059ea1a7e8c79c4
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeInstance.java
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@@ -0,0 +1,30 @@
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+package io.papermc.paper.attribute;
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+
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+import net.minecraft.world.entity.ai.attributes.AttributeInstance;
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+import org.bukkit.attribute.Attribute;
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+import org.bukkit.attribute.AttributeModifier;
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+import org.bukkit.craftbukkit.attribute.CraftAttributeInstance;
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+
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+import java.util.Collection;
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+
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+public class UnmodifiableAttributeInstance extends CraftAttributeInstance {
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+
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+ public UnmodifiableAttributeInstance(AttributeInstance handle, Attribute attribute) {
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+ super(handle, attribute);
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+ }
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+
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+ @Override
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+ public void setBaseValue(double d) {
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+ throw new UnsupportedOperationException("Cannot modify default attributes");
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+ }
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+
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+ @Override
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+ public void addModifier(AttributeModifier modifier) {
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+ throw new UnsupportedOperationException("Cannot modify default attributes");
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+ }
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+
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+ @Override
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+ public void removeModifier(AttributeModifier modifier) {
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+ throw new UnsupportedOperationException("Cannot modify default attributes");
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+ }
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+}
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diff --git a/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeMap.java b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeMap.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..68044b8439c302114240d0ae4da93ab3e0789cd2
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeMap.java
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@@ -0,0 +1,32 @@
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+package io.papermc.paper.attribute;
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+
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+import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
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+import org.bukkit.attribute.Attributable;
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+import org.bukkit.attribute.Attribute;
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+import org.bukkit.attribute.AttributeInstance;
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+import org.bukkit.craftbukkit.attribute.CraftAttribute;
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+import org.jetbrains.annotations.NotNull;
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+import org.jetbrains.annotations.Nullable;
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+
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+public class UnmodifiableAttributeMap implements Attributable {
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+
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+ private final AttributeSupplier handle;
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+
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+ public UnmodifiableAttributeMap(@NotNull AttributeSupplier handle) {
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+ this.handle = handle;
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+ }
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+
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+ @Override
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+ public @Nullable AttributeInstance getAttribute(@NotNull Attribute attribute) {
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+ net.minecraft.world.entity.ai.attributes.Attribute nmsAttribute = CraftAttribute.bukkitToMinecraft(attribute);
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+ if (!this.handle.hasAttribute(nmsAttribute)) {
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+ return null;
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+ }
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+ return new UnmodifiableAttributeInstance(this.handle.getAttributeInstance(nmsAttribute), attribute);
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+ }
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+
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+ @Override
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+ public void registerAttribute(@NotNull Attribute attribute) {
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+ throw new UnsupportedOperationException("Cannot register new attributes here");
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+ }
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+}
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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index 9c06e1b5853de70eb9fad444b2a97acd25328bc4..19c07e2c4b6010bf673f79e58fdbaa41275c4fba 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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@@ -563,6 +563,18 @@ public final class CraftMagicNumbers implements UnsafeValues {
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public int getProtocolVersion() {
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return net.minecraft.SharedConstants.getCurrentVersion().getProtocolVersion();
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}
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+
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+ @Override
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+ public boolean hasDefaultEntityAttributes(NamespacedKey bukkitEntityKey) {
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+ return net.minecraft.world.entity.ai.attributes.DefaultAttributes.hasSupplier(net.minecraft.core.registries.BuiltInRegistries.ENTITY_TYPE.get(CraftNamespacedKey.toMinecraft(bukkitEntityKey)));
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+ }
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+
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+ @Override
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+ public org.bukkit.attribute.Attributable getDefaultEntityAttributes(NamespacedKey bukkitEntityKey) {
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+ Preconditions.checkArgument(hasDefaultEntityAttributes(bukkitEntityKey), bukkitEntityKey + " doesn't have default attributes");
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+ var supplier = net.minecraft.world.entity.ai.attributes.DefaultAttributes.getSupplier((net.minecraft.world.entity.EntityType<? extends net.minecraft.world.entity.LivingEntity>) net.minecraft.core.registries.BuiltInRegistries.ENTITY_TYPE.get(CraftNamespacedKey.toMinecraft(bukkitEntityKey)));
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+ return new io.papermc.paper.attribute.UnmodifiableAttributeMap(supplier);
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+ }
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// Paper end
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/**
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diff --git a/src/test/java/io/papermc/paper/attribute/EntityTypeAttributesTest.java b/src/test/java/io/papermc/paper/attribute/EntityTypeAttributesTest.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..e8cdfa385230d3de202122e4df5e07f61f80ce75
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--- /dev/null
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+++ b/src/test/java/io/papermc/paper/attribute/EntityTypeAttributesTest.java
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@@ -0,0 +1,39 @@
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+package io.papermc.paper.attribute;
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+
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+import org.bukkit.attribute.Attributable;
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+import org.bukkit.attribute.Attribute;
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+import org.bukkit.attribute.AttributeInstance;
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+import org.bukkit.attribute.AttributeModifier;
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+import org.bukkit.entity.EntityType;
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+import org.bukkit.support.AbstractTestingBase;
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+import org.junit.jupiter.api.Test;
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+
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+import static org.junit.jupiter.api.Assertions.assertFalse;
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+import static org.junit.jupiter.api.Assertions.assertNotNull;
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+import static org.junit.jupiter.api.Assertions.assertThrows;
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+import static org.junit.jupiter.api.Assertions.assertTrue;
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+
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+public class EntityTypeAttributesTest extends AbstractTestingBase {
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+
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+ @Test
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+ public void testIllegalEntity() {
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+ assertFalse(EntityType.EGG.hasDefaultAttributes());
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+ assertThrows(IllegalArgumentException.class, () -> EntityType.EGG.getDefaultAttributes());
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+ }
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+
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+ @Test
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+ public void testLegalEntity() {
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+ assertTrue(EntityType.ZOMBIE.hasDefaultAttributes());
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+ EntityType.ZOMBIE.getDefaultAttributes();
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+ }
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+
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+ @Test
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+ public void testUnmodifiabilityOfAttributable() {
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+ Attributable attributable = EntityType.ZOMBIE.getDefaultAttributes();
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+ assertThrows(UnsupportedOperationException.class, () -> attributable.registerAttribute(Attribute.GENERIC_ATTACK_DAMAGE));
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+ AttributeInstance instance = attributable.getAttribute(Attribute.GENERIC_FOLLOW_RANGE);
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+ assertNotNull(instance);
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+ assertThrows(UnsupportedOperationException.class, () -> instance.addModifier(new AttributeModifier("test", 3, AttributeModifier.Operation.ADD_NUMBER)));
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+ assertThrows(UnsupportedOperationException.class, () -> instance.setBaseValue(3.2));
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+ }
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+}
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