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PaperMC/patches/server/0757-Friction-API.patch
Nassim Jahnke e4e24f3335
Move around patches again
2024-12-05 12:20:56 +01:00

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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 26c25f9ccd59922ced968abef41683c2b6b45e7d..cdd94eb9b82bb22505461ae135d12914d7446b00 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -294,6 +294,7 @@ 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() {
@@ -722,7 +723,7 @@ 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) {
@@ -796,6 +797,11 @@ 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);
@@ -839,6 +845,16 @@ 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 d555fd0b200c012f30ed0c0ec09a37b25a737b76..7a6d51020d9c6be33b4c34c0d608559589d5b390 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.applyEffectsFromBlocks();
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;
}
@@ -409,6 +414,11 @@ 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);
@@ -451,6 +461,17 @@ 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/net/minecraft/world/entity/vehicle/AbstractMinecart.java b/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecart.java
index f88c1becd08e7b10f228624160b85f89a379fbeb..cdc8606ffe5c75ee19d92e9f86f26b2a502d765e 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecart.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecart.java
@@ -93,6 +93,7 @@ public abstract class AbstractMinecart extends VehicleEntity {
private double flyingZ = 0.95;
public Double maxSpeed;
// CraftBukkit end
+ public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper - Friction API
protected AbstractMinecart(EntityType<?> type, Level world) {
super(type, world);
@@ -552,6 +553,16 @@ public abstract class AbstractMinecart extends VehicleEntity {
this.flipped = nbt.getBoolean("FlippedRotation");
this.firstTick = nbt.getBoolean("HasTicked");
+ // 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
}
@Override
@@ -564,6 +575,12 @@ public abstract class AbstractMinecart extends VehicleEntity {
nbt.putBoolean("FlippedRotation", this.flipped);
nbt.putBoolean("HasTicked", this.firstTick);
+
+ // 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
}
@Override
diff --git a/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java b/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java
index 60b8d8c1ccfe7f9d1a327d1a361493e97ca9ad4c..f43439b31a14b9db4744512465d81134ebe5b3e1 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/NewMinecartBehavior.java
@@ -554,6 +554,7 @@ public class NewMinecartBehavior extends MinecartBehavior {
@Override
public double getSlowdownFactor() {
+ if (this.minecart.frictionState == net.kyori.adventure.util.TriState.FALSE) return 1; // Paper
return this.minecart.isVehicle() || !this.minecart.slowWhenEmpty ? 0.997D : 0.975D; // CraftBukkit - add !this.slowWhenEmpty
}
diff --git a/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java b/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java
index 62ae79808aba4112ea845311080bb496174a68d2..04a622f52353ebcc21f41c233f5a0fd67690cf4a 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/OldMinecartBehavior.java
@@ -528,6 +528,7 @@ public class OldMinecartBehavior extends MinecartBehavior {
@Override
public double getSlowdownFactor() {
+ if (this.minecart.frictionState == net.kyori.adventure.util.TriState.FALSE) return 1; // Paper
return this.minecart.isVehicle() || !this.minecart.slowWhenEmpty ? 0.997D : 0.96D; // CraftBukkit - add !this.slowWhenEmpty
}
}
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 20b84c87ef0987f76a4932f45a7d1534a74a8c00..812194dac108e446cd987c474ec6e582eaaed32b 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -1198,4 +1198,17 @@ 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
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
index e02ecbdc158311bdc7e4d13307de6e2a2cf54235..b42bce0c4f4b3aac2729cfdad392d863245ed693 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
@@ -127,4 +127,18 @@ public abstract class CraftMinecart extends CraftVehicle implements Minecart {
public int getDisplayBlockOffset() {
return this.getHandle().getDisplayOffset();
}
+
+ // 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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