1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
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 444da43415fc1341800260ebf9359f29dc628c22..812fc61a81519980dad5dcd80127c8420f73676e 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -516,6 +516,18 @@ 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));
+ }
+}
|
