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Paper/patches/server/0776-Friction-API.patch
Nassim Jahnke dc684c60d1
Remove bad server.scheduleOnMain disconnect calls from old patches 
The new behavior of disconnect to block the current thread until the disconnect succeeded is better than throwing it off to happen at some point
2024-06-16 12:56:00 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Noah van der Aa <ndvdaa@gmail.com>
Date: Wed, 15 Sep 2021 20:44:22 +0200
Subject: [PATCH] Friction API
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 532f954a052eca3279f974450c2133837410282e..c64fb799f2f40831cd25a409713c9b5081c76002 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -285,6 +285,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
public boolean bukkitPickUpLoot;
public org.bukkit.craftbukkit.entity.CraftLivingEntity getBukkitLivingEntity() { return (org.bukkit.craftbukkit.entity.CraftLivingEntity) super.getBukkitEntity(); } // Paper
public boolean silentDeath = false; // Paper - mark entity as dying silently for cancellable death event
+ public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper - Friction API
@Override
public float getBukkitYaw() {
@@ -706,7 +707,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
}
public boolean shouldDiscardFriction() {
- return this.discardFriction;
+ return !this.frictionState.toBooleanOrElse(!this.discardFriction); // Paper - Friction API
}
public void setDiscardFriction(boolean noDrag) {
@@ -773,6 +774,11 @@ public abstract class LivingEntity extends Entity implements Attackable {
@Override
public void addAdditionalSaveData(CompoundTag nbt) {
+ // Paper start - Friction API
+ if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) {
+ nbt.putString("Paper.FrictionState", this.frictionState.toString());
+ }
+ // Paper end - Friction API
nbt.putFloat("Health", this.getHealth());
nbt.putShort("HurtTime", (short) this.hurtTime);
nbt.putInt("HurtByTimestamp", this.lastHurtByMobTimestamp);
@@ -816,6 +822,16 @@ public abstract class LivingEntity extends Entity implements Attackable {
}
this.internalSetAbsorptionAmount(absorptionAmount);
// Paper end - Check for NaN
+ // Paper start - Friction API
+ if (nbt.contains("Paper.FrictionState")) {
+ String fs = nbt.getString("Paper.FrictionState");
+ try {
+ frictionState = net.kyori.adventure.util.TriState.valueOf(fs);
+ } catch (Exception ignored) {
+ LOGGER.error("Unknown friction state " + fs + " for " + this);
+ }
+ }
+ // Paper end - Friction API
if (nbt.contains("attributes", 9) && this.level() != null && !this.level().isClientSide) {
this.getAttributes().load(nbt.getList("attributes", 10));
}
diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
index 30056568a9701fcb664682f329175d3bfee79b60..ea0d9335446b20073b9aafb9de453097355db79c 100644
--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
@@ -63,6 +63,7 @@ public class ItemEntity extends Entity implements TraceableEntity {
private int lastTick = MinecraftServer.currentTick - 1; // CraftBukkit
public boolean canMobPickup = true; // Paper - Item#canEntityPickup
private int despawnRate = -1; // Paper - Alternative item-despawn-rate
+ public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper - Friction API
public ItemEntity(EntityType<? extends ItemEntity> type, Level world) {
super(type, world);
@@ -186,7 +187,11 @@ public class ItemEntity extends Entity implements TraceableEntity {
this.move(MoverType.SELF, this.getDeltaMovement());
float f = 0.98F;
- if (this.onGround()) {
+ // Paper start - Friction API
+ if (frictionState == net.kyori.adventure.util.TriState.FALSE) {
+ f = 1F;
+ } else if (this.onGround()) {
+ // Paper end - Friction API
f = this.level().getBlockState(this.getBlockPosBelowThatAffectsMyMovement()).getBlock().getFriction() * 0.98F;
}
@@ -395,6 +400,11 @@ public class ItemEntity extends Entity implements TraceableEntity {
@Override
public void addAdditionalSaveData(CompoundTag nbt) {
+ // Paper start - Friction API
+ if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) {
+ nbt.putString("Paper.FrictionState", this.frictionState.toString());
+ }
+ // Paper end - Friction API
nbt.putShort("Health", (short) this.health);
nbt.putShort("Age", (short) this.age);
nbt.putShort("PickupDelay", (short) this.pickupDelay);
@@ -437,6 +447,17 @@ public class ItemEntity extends Entity implements TraceableEntity {
this.setItem(ItemStack.EMPTY);
}
+ // Paper start - Friction API
+ if (nbt.contains("Paper.FrictionState")) {
+ String fs = nbt.getString("Paper.FrictionState");
+ try {
+ frictionState = net.kyori.adventure.util.TriState.valueOf(fs);
+ } catch (Exception ignored) {
+ com.mojang.logging.LogUtils.getLogger().error("Unknown friction state " + fs + " for " + this);
+ }
+ }
+ // Paper end - Friction API
+
if (this.getItem().isEmpty()) {
this.discard(null); // CraftBukkit - add Bukkit remove cause
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
index 1a291dd8a287db30e71dcb315599fc4b038764c4..30d62ee4d5cd2ddacb8783b5bbbf475d592b3e02 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
@@ -99,6 +99,18 @@ public class CraftItem extends CraftEntity implements Item {
this.getHandle().age = willAge ? 0 : NO_AGE_TIME;
}
+ @org.jetbrains.annotations.NotNull
+ @Override
+ public net.kyori.adventure.util.TriState getFrictionState() {
+ return this.getHandle().frictionState;
+ }
+
+ @Override
+ public void setFrictionState(@org.jetbrains.annotations.NotNull net.kyori.adventure.util.TriState state) {
+ java.util.Objects.requireNonNull(state, "state may not be null");
+ this.getHandle().frictionState = state;
+ }
+
@Override
public int getHealth() {
return this.getHandle().health;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 557628f9a2868788e7b265445b01a38f6fd99a31..195cbff1253ed864fb18984ff6db928aac2bf8aa 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -1149,4 +1149,17 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
nmsStack.hurtAndBreak(amount, this.getHandle(), slot, true);
}
// Paper end - ItemStack damage API
+ // Paper start - friction API
+ @org.jetbrains.annotations.NotNull
+ @Override
+ public net.kyori.adventure.util.TriState getFrictionState() {
+ return this.getHandle().frictionState;
+ }
+
+ @Override
+ public void setFrictionState(@org.jetbrains.annotations.NotNull net.kyori.adventure.util.TriState state) {
+ java.util.Objects.requireNonNull(state, "state may not be null");
+ this.getHandle().frictionState = state;
+ }
+ // Paper end - friction API
}
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