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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ineusia <ineusia@yahoo.com>
Date: Mon, 26 Oct 2020 11:48:06 -0500
Subject: [PATCH] Add Destroy Speed API
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
diff --git a/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeInstance.java b/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeInstance.java
index 36c943d709c1c0ae49ec0baf0ccf7b6cb9a2ecf3..d28f9e077a50122e86848cfa9db83f6b0e8eef6c 100644
--- a/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeInstance.java
+++ b/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeInstance.java
@@ -143,20 +143,20 @@ public class AttributeInstance {
double d = this.getBaseValue();
for (AttributeModifier attributeModifier : this.getModifiersOrEmpty(AttributeModifier.Operation.ADD_VALUE)) {
- d += attributeModifier.amount();
+ d += attributeModifier.amount(); // Paper - destroy speed API - diff on change
}
double e = d;
for (AttributeModifier attributeModifier2 : this.getModifiersOrEmpty(AttributeModifier.Operation.ADD_MULTIPLIED_BASE)) {
- e += d * attributeModifier2.amount();
+ e += d * attributeModifier2.amount(); // Paper - destroy speed API - diff on change
}
for (AttributeModifier attributeModifier3 : this.getModifiersOrEmpty(AttributeModifier.Operation.ADD_MULTIPLIED_TOTAL)) {
- e *= 1.0 + attributeModifier3.amount();
+ e *= 1.0 + attributeModifier3.amount(); // Paper - destroy speed API - diff on change
}
- return this.attribute.value().sanitizeValue(e);
+ return attribute.value().sanitizeValue(e); // Paper - destroy speed API - diff on change
}
private Collection<AttributeModifier> getModifiersOrEmpty(AttributeModifier.Operation operation) {
diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
index 9953b6b36cbcbfd1756bac478b568ca5700fc898..33869e725c3b3f2120fa36ca468019a78321e862 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -721,4 +721,35 @@ public class CraftBlockData implements BlockData {
public BlockState createBlockState() {
return CraftBlockStates.getBlockState(this.state, null);
}
+
+ // Paper start - destroy speed API
+ @Override
+ public float getDestroySpeed(final ItemStack itemStack, final boolean considerEnchants) {
+ net.minecraft.world.item.ItemStack nmsItemStack = CraftItemStack.unwrap(itemStack);
+ float speed = nmsItemStack.getDestroySpeed(this.state);
+ if (speed > 1.0F && considerEnchants) {
+ final net.minecraft.core.Holder<net.minecraft.world.entity.ai.attributes.Attribute> attribute = net.minecraft.world.entity.ai.attributes.Attributes.MINING_EFFICIENCY;
+ // Logic sourced from AttributeInstance#calculateValue
+ final double initialBaseValue = attribute.value().getDefaultValue();
+ final org.apache.commons.lang3.mutable.MutableDouble modifiedBaseValue = new org.apache.commons.lang3.mutable.MutableDouble(initialBaseValue);
+ final org.apache.commons.lang3.mutable.MutableDouble baseValMul = new org.apache.commons.lang3.mutable.MutableDouble(1);
+ final org.apache.commons.lang3.mutable.MutableDouble totalValMul = new org.apache.commons.lang3.mutable.MutableDouble(1);
+
+ net.minecraft.world.item.enchantment.EnchantmentHelper.forEachModifier(
+ nmsItemStack, net.minecraft.world.entity.EquipmentSlot.MAINHAND, (attributeHolder, attributeModifier) -> {
+ switch (attributeModifier.operation()) {
+ case ADD_VALUE -> modifiedBaseValue.add(attributeModifier.amount());
+ case ADD_MULTIPLIED_BASE -> baseValMul.add(attributeModifier.amount());
+ case ADD_MULTIPLIED_TOTAL -> totalValMul.setValue(totalValMul.doubleValue() * (1D + attributeModifier.amount()));
+ }
+ }
+ );
+
+ final double actualModifier = modifiedBaseValue.doubleValue() * baseValMul.doubleValue() * totalValMul.doubleValue();
+
+ speed += (float) attribute.value().sanitizeValue(actualModifier);
+ }
+ return speed;
+ }
+ // Paper end - destroy speed API
}
diff --git a/src/test/java/io/papermc/paper/block/CraftBlockDataDestroySpeedTest.java b/src/test/java/io/papermc/paper/block/CraftBlockDataDestroySpeedTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..62aef9abab896491f7806490184fc6899ec36c57
--- /dev/null
+++ b/src/test/java/io/papermc/paper/block/CraftBlockDataDestroySpeedTest.java
@@ -0,0 +1,137 @@
+package io.papermc.paper.block;
+
+import java.util.List;
+import java.util.Optional;
+import net.minecraft.core.Holder;
+import net.minecraft.core.HolderSet;
+import net.minecraft.core.component.DataComponentMap;
+import net.minecraft.core.component.DataComponents;
+import net.minecraft.network.chat.Component;
+import net.minecraft.world.entity.EquipmentSlot;
+import net.minecraft.world.entity.EquipmentSlotGroup;
+import net.minecraft.world.entity.ai.attributes.AttributeInstance;
+import net.minecraft.world.entity.ai.attributes.AttributeModifier;
+import net.minecraft.world.entity.ai.attributes.Attributes;
+import net.minecraft.world.item.Items;
+import net.minecraft.world.item.enchantment.Enchantment;
+import net.minecraft.world.item.enchantment.EnchantmentEffectComponents;
+import net.minecraft.world.item.enchantment.EnchantmentHelper;
+import net.minecraft.world.item.enchantment.ItemEnchantments;
+import net.minecraft.world.item.enchantment.LevelBasedValue;
+import net.minecraft.world.item.enchantment.effects.EnchantmentAttributeEffect;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.support.AbstractTestingBase;
+import org.bukkit.util.Vector;
+import org.jetbrains.annotations.NotNull;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static net.minecraft.resources.ResourceLocation.fromNamespaceAndPath;
+
+/**
+ * CraftBlockData's {@link org.bukkit.craftbukkit.block.data.CraftBlockData#getDestroySpeed(ItemStack, boolean)}
+ * uses a reimplementation of AttributeValue without any map to avoid attribute instance allocation and mutation
+ * for 0 gain.
+ * <p>
+ * This test is responsible for ensuring that said logic emits the expected destroy speed under heavy attribute
+ * modifier use.
+ */
+public class CraftBlockDataDestroySpeedTest extends AbstractTestingBase {
+
+ @Test
+ public void testCorrectEnchantmentDestroySpeedComputation() {
+ // Construct fake enchantment that has *all and multiple of* operations
+ final Enchantment speedEnchantment = speedEnchantment();
+ final BlockState blockStateToMine = Blocks.STONE.defaultBlockState();
+
+ final ItemEnchantments.Mutable mutable = new ItemEnchantments.Mutable(ItemEnchantments.EMPTY);
+ mutable.set(Holder.direct(speedEnchantment), 1);
+
+ final net.minecraft.world.item.ItemStack itemStack = new net.minecraft.world.item.ItemStack(Items.DIAMOND_PICKAXE);
+ itemStack.set(DataComponents.ENCHANTMENTS, mutable.toImmutable());
+
+ // Compute expected value by running the entire attribute instance chain
+ final AttributeInstance dummyInstance = new AttributeInstance(Attributes.MINING_EFFICIENCY, $ -> {
+ });
+ EnchantmentHelper.forEachModifier(itemStack, EquipmentSlot.MAINHAND, (attributeHolder, attributeModifier) -> {
+ if (attributeHolder.is(Attributes.MINING_EFFICIENCY)) dummyInstance.addTransientModifier(attributeModifier);
+ });
+
+ final double toolSpeed = itemStack.getDestroySpeed(blockStateToMine);
+ final double expectedSpeed = toolSpeed <= 1.0F ? toolSpeed : toolSpeed + dummyInstance.getValue();
+
+ // API stack + computation
+ final CraftItemStack craftMirror = CraftItemStack.asCraftMirror(itemStack);
+ final CraftBlockData data = CraftBlockData.createData(blockStateToMine);
+ final float actualSpeed = data.getDestroySpeed(craftMirror, true);
+
+ Assertions.assertEquals(expectedSpeed, actualSpeed, Vector.getEpsilon());
+ }
+
+ /**
+ * Complex enchantment that holds attribute modifiers for the mining efficiency.
+ * The enchantment holds 2 of each operation to also ensure that such behaviour works correctly.
+ *
+ * @return the enchantment.
+ */
+ private static @NotNull Enchantment speedEnchantment() {
+ return new Enchantment(
+ Component.empty(),
+ new Enchantment.EnchantmentDefinition(
+ HolderSet.empty(),
+ Optional.empty(),
+ 0, 0,
+ Enchantment.constantCost(0),
+ Enchantment.constantCost(0),
+ 0,
+ List.of(EquipmentSlotGroup.ANY)
+ ),
+ HolderSet.empty(),
+ DataComponentMap.builder()
+ .set(EnchantmentEffectComponents.ATTRIBUTES, List.of(
+ new EnchantmentAttributeEffect(
+ fromNamespaceAndPath("paper", "base1"),
+ Attributes.MINING_EFFICIENCY,
+ LevelBasedValue.constant(1),
+ AttributeModifier.Operation.ADD_VALUE
+ ),
+ new EnchantmentAttributeEffect(
+ fromNamespaceAndPath("paper", "base2"),
+ Attributes.MINING_EFFICIENCY,
+ LevelBasedValue.perLevel(3),
+ AttributeModifier.Operation.ADD_VALUE
+ ),
+ new EnchantmentAttributeEffect(
+ fromNamespaceAndPath("paper", "base-mul1"),
+ Attributes.MINING_EFFICIENCY,
+ LevelBasedValue.perLevel(7),
+ AttributeModifier.Operation.ADD_MULTIPLIED_BASE
+ ),
+ new EnchantmentAttributeEffect(
+ fromNamespaceAndPath("paper", "base-mul2"),
+ Attributes.MINING_EFFICIENCY,
+ LevelBasedValue.constant(10),
+ AttributeModifier.Operation.ADD_MULTIPLIED_BASE
+ ),
+ new EnchantmentAttributeEffect(
+ fromNamespaceAndPath("paper", "total-mul1"),
+ Attributes.MINING_EFFICIENCY,
+ LevelBasedValue.constant(.2f),
+ AttributeModifier.Operation.ADD_MULTIPLIED_TOTAL
+ ),
+ new EnchantmentAttributeEffect(
+ fromNamespaceAndPath("paper", "total-mul2"),
+ Attributes.MINING_EFFICIENCY,
+ LevelBasedValue.constant(-.5F),
+ AttributeModifier.Operation.ADD_MULTIPLIED_TOTAL
+ )
+ ))
+ .build()
+ );
+ }
+
+}
|
