PaperMC/patches/server/0694-Get-entity-default-attributes.patch
Nassim Jahnke 928bcc8d3a
Updated Upstream (Bukkit/CraftBukkit) (#8430)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
09943450 Update SnakeYAML version
5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc
6f82b381 PR-788: Add getHand() to all relevant events

CraftBukkit Changes:
aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe
5329dd6fd PR-1107: Add getHand() to all relevant events
93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
2022-10-02 09:56:36 +02:00

159 lines
7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 20 Aug 2021 13:03:21 -0700
Subject: [PATCH] Get entity default attributes
diff --git a/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeInstance.java b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeInstance.java
new file mode 100644
index 0000000000000000000000000000000000000000..12135ffeacd648f6bc4d7d327059ea1a7e8c79c4
--- /dev/null
+++ b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeInstance.java
@@ -0,0 +1,30 @@
+package io.papermc.paper.attribute;
+
+import net.minecraft.world.entity.ai.attributes.AttributeInstance;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeModifier;
+import org.bukkit.craftbukkit.attribute.CraftAttributeInstance;
+
+import java.util.Collection;
+
+public class UnmodifiableAttributeInstance extends CraftAttributeInstance {
+
+ public UnmodifiableAttributeInstance(AttributeInstance handle, Attribute attribute) {
+ super(handle, attribute);
+ }
+
+ @Override
+ public void setBaseValue(double d) {
+ throw new UnsupportedOperationException("Cannot modify default attributes");
+ }
+
+ @Override
+ public void addModifier(AttributeModifier modifier) {
+ throw new UnsupportedOperationException("Cannot modify default attributes");
+ }
+
+ @Override
+ public void removeModifier(AttributeModifier modifier) {
+ throw new UnsupportedOperationException("Cannot modify default attributes");
+ }
+}
diff --git a/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeMap.java b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeMap.java
new file mode 100644
index 0000000000000000000000000000000000000000..4ecba0b02c2813a890aecc558698787946d2ccb8
--- /dev/null
+++ b/src/main/java/io/papermc/paper/attribute/UnmodifiableAttributeMap.java
@@ -0,0 +1,43 @@
+package io.papermc.paper.attribute;
+
+import com.google.common.collect.Maps;
+import com.google.common.util.concurrent.Callables;
+import com.google.common.util.concurrent.Runnables;
+import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
+import org.bukkit.attribute.Attributable;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeInstance;
+import org.bukkit.craftbukkit.attribute.CraftAttributeInstance;
+import org.bukkit.craftbukkit.attribute.CraftAttributeMap;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Map;
+import java.util.function.Consumer;
+import java.util.function.Function;
+
+public class UnmodifiableAttributeMap implements Attributable {
+
+
+ private final Map<Attribute, AttributeInstance> attributes = Maps.newHashMap();
+ private final AttributeSupplier handle;
+
+ public UnmodifiableAttributeMap(@NotNull AttributeSupplier handle) {
+ this.handle = handle;
+ }
+
+ @Override
+ public @Nullable AttributeInstance getAttribute(@NotNull Attribute attribute) {
+ var nmsAttribute = CraftAttributeMap.toMinecraft(attribute);
+ var nmsAttributeInstance = this.handle.instances.get(nmsAttribute);
+ if (nmsAttribute == null) {
+ return null;
+ }
+ return new UnmodifiableAttributeInstance(nmsAttributeInstance, attribute);
+ }
+
+ @Override
+ public void registerAttribute(@NotNull Attribute attribute) {
+ throw new UnsupportedOperationException("Cannot register new attributes here");
+ }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index 6fd3bbc36cb6e270a10f778fe2764823f90cca9c..51ecfd4c4afe6dfc42c3aa85e6fc55d0e965a5dc 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -562,6 +562,18 @@ public final class CraftMagicNumbers implements UnsafeValues {
public int getProtocolVersion() {
return net.minecraft.SharedConstants.getCurrentVersion().getProtocolVersion();
}
+
+ @Override
+ public boolean hasDefaultEntityAttributes(NamespacedKey bukkitEntityKey) {
+ return net.minecraft.world.entity.ai.attributes.DefaultAttributes.hasSupplier(net.minecraft.core.Registry.ENTITY_TYPE.get(CraftNamespacedKey.toMinecraft(bukkitEntityKey)));
+ }
+
+ @Override
+ public org.bukkit.attribute.Attributable getDefaultEntityAttributes(NamespacedKey bukkitEntityKey) {
+ Preconditions.checkArgument(hasDefaultEntityAttributes(bukkitEntityKey), bukkitEntityKey + " doesn't have default attributes");
+ var supplier = net.minecraft.world.entity.ai.attributes.DefaultAttributes.getSupplier((net.minecraft.world.entity.EntityType<? extends net.minecraft.world.entity.LivingEntity>) net.minecraft.core.Registry.ENTITY_TYPE.get(CraftNamespacedKey.toMinecraft(bukkitEntityKey)));
+ return new io.papermc.paper.attribute.UnmodifiableAttributeMap(supplier);
+ }
// Paper end
/**
diff --git a/src/test/java/io/papermc/paper/attribute/EntityTypeAttributesTest.java b/src/test/java/io/papermc/paper/attribute/EntityTypeAttributesTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..7b999deba66aa6d22cd7520f6c13550a44ca327d
--- /dev/null
+++ b/src/test/java/io/papermc/paper/attribute/EntityTypeAttributesTest.java
@@ -0,0 +1,39 @@
+package io.papermc.paper.attribute;
+
+import org.bukkit.attribute.Attributable;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeInstance;
+import org.bukkit.attribute.AttributeModifier;
+import org.bukkit.entity.EntityType;
+import org.bukkit.support.AbstractTestingBase;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+public class EntityTypeAttributesTest extends AbstractTestingBase {
+
+ @Test
+ public void testIllegalEntity() {
+ assertFalse(EntityType.EGG.hasDefaultAttributes());
+ assertThrows(IllegalArgumentException.class, () -> EntityType.EGG.getDefaultAttributes());
+ }
+
+ @Test
+ public void testLegalEntity() {
+ assertTrue(EntityType.ZOMBIE.hasDefaultAttributes());
+ EntityType.ZOMBIE.getDefaultAttributes();
+ }
+
+ @Test
+ public void testUnmodifiabilityOfAttributable() {
+ Attributable attributable = EntityType.ZOMBIE.getDefaultAttributes();
+ assertThrows(UnsupportedOperationException.class, () -> attributable.registerAttribute(Attribute.GENERIC_ATTACK_DAMAGE));
+ AttributeInstance instance = attributable.getAttribute(Attribute.GENERIC_FOLLOW_RANGE);
+ assertNotNull(instance);
+ assertThrows(UnsupportedOperationException.class, () -> instance.addModifier(new AttributeModifier("test", 3, AttributeModifier.Operation.ADD_NUMBER)));
+ assertThrows(UnsupportedOperationException.class, () -> instance.setBaseValue(3.2));
+ }
+}