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c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
84 lines
5.5 KiB
Diff
84 lines
5.5 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: Sat, 8 May 2021 15:01:54 -0700
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Subject: [PATCH] Improve item default attribute API
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diff --git a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
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index de0eba19c0c963adb4f17cea22333240021fd801..3b171a08bd0bedfe224905feb5838d2540199bce 100644
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--- a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
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+++ b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
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@@ -75,7 +75,7 @@ public class CraftAttributeInstance implements AttributeInstance {
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return new AttributeModifier(CraftNamespacedKey.fromMinecraft(nms.id()), nms.amount(), AttributeModifier.Operation.values()[nms.operation().ordinal()], org.bukkit.inventory.EquipmentSlotGroup.ANY);
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}
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- public static AttributeModifier convert(net.minecraft.world.entity.ai.attributes.AttributeModifier nms, EquipmentSlot slot) {
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- return new AttributeModifier(CraftNamespacedKey.fromMinecraft(nms.id()), nms.amount(), AttributeModifier.Operation.values()[nms.operation().ordinal()], slot.getGroup());
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+ public static AttributeModifier convert(net.minecraft.world.entity.ai.attributes.AttributeModifier nms, net.minecraft.world.entity.EquipmentSlotGroup slot) { // Paper
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+ return new AttributeModifier(CraftNamespacedKey.fromMinecraft(nms.id()), nms.amount(), AttributeModifier.Operation.values()[nms.operation().ordinal()], org.bukkit.craftbukkit.CraftEquipmentSlot.getSlot(slot)); // Paper
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java
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index 66d773cadb74f9176e6cf68a565568034f52ec63..a1f2b9d40d374e8cdbaf916b25fa74b6c0970f81 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java
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@@ -197,19 +197,36 @@ public class CraftItemType<M extends ItemMeta> implements ItemType.Typed<M>, Han
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// return CraftEquipmentSlot.getSlot(EntityInsentient.getEquipmentSlotForItem(CraftItemStack.asNMSCopy(ItemStack.of(this))));
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// }
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+ // Paper start - improve default attribute API
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+ @Override
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+ public @NotNull Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers() {
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+ return this.getDefaultAttributeModifiers(sg -> true);
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+ }
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+ // Paper end - improve default attribute API
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+
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@Override
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public Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(EquipmentSlot slot) {
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+ // Paper start - improve/fix item default attribute API
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+ final net.minecraft.world.entity.EquipmentSlot nmsSlot = CraftEquipmentSlot.getNMS(slot);
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+ return this.getDefaultAttributeModifiers(sg -> sg.test(nmsSlot));
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+ }
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+
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+ private Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(final java.util.function.Predicate<net.minecraft.world.entity.EquipmentSlotGroup> slotPredicate) {
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+ // Paper end - improve/fix item default attribute API
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ImmutableMultimap.Builder<Attribute, AttributeModifier> defaultAttributes = ImmutableMultimap.builder();
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ItemAttributeModifiers nmsDefaultAttributes = this.item.components().getOrDefault(DataComponents.ATTRIBUTE_MODIFIERS, ItemAttributeModifiers.EMPTY);
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if (nmsDefaultAttributes.modifiers().isEmpty()) {
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nmsDefaultAttributes = this.item.getDefaultAttributeModifiers();
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}
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-
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- nmsDefaultAttributes.forEach(CraftEquipmentSlot.getNMS(slot), (key, value) -> {
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- Attribute attribute = CraftAttribute.minecraftToBukkit(key.value());
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- defaultAttributes.put(attribute, CraftAttributeInstance.convert(value, slot));
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- });
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+ // Paper start - improve/fix item default attribute API
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+ for (final net.minecraft.world.item.component.ItemAttributeModifiers.Entry entry : nmsDefaultAttributes.modifiers()) {
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+ if (!slotPredicate.test(entry.slot())) continue;
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+ final Attribute attribute = CraftAttribute.minecraftHolderToBukkit(entry.attribute());
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+ final AttributeModifier modifier = CraftAttributeInstance.convert(entry.modifier(), entry.slot());
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+ defaultAttributes.put(attribute, modifier);
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+ }
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+ // Paper end - improve/fix item default attribute API
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return defaultAttributes.build();
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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 07de1316b65e71ab0a372f1a51ae3bc6953d6530..c09c494ebe7a0c13b8bce4234a23a92c300153f9 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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@@ -385,7 +385,11 @@ public final class CraftMagicNumbers implements UnsafeValues {
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@Override
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public Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(Material material, EquipmentSlot slot) {
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- return material.getDefaultAttributeModifiers(slot);
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+ // Paper start - delegate to method on ItemType
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+ final org.bukkit.inventory.ItemType item = material.asItemType();
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+ Preconditions.checkArgument(item != null, material + " is not an item and does not have default attributes");
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+ return item.getDefaultAttributeModifiers(slot);
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+ // Paper end - delegate to method on ItemType
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}
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@Override
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