mirror of
https://github.com/PaperMC/Paper.git
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157 lines
7.5 KiB
Diff
157 lines
7.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Noah van der Aa <ndvdaa@gmail.com>
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Date: Wed, 15 Sep 2021 20:44:22 +0200
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Subject: [PATCH] Friction API
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index a73fdae75a8ef1b5c0aa7c05bd1ec9081634f565..e579d9cc70115a3fb3388adb309847faa1f9aaab 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -262,6 +262,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
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public boolean bukkitPickUpLoot;
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public org.bukkit.craftbukkit.entity.CraftLivingEntity getBukkitLivingEntity() { return (org.bukkit.craftbukkit.entity.CraftLivingEntity) super.getBukkitEntity(); } // Paper
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public boolean silentDeath = false; // Paper - mark entity as dying silently for cancellable death event
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+ public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper
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@Override
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public float getBukkitYaw() {
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@@ -717,7 +718,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
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}
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public boolean shouldDiscardFriction() {
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- return this.discardFriction;
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+ return !this.frictionState.toBooleanOrElse(!this.discardFriction); // Paper
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}
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public void setDiscardFriction(boolean noDrag) {
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@@ -761,6 +762,11 @@ public abstract class LivingEntity extends Entity implements Attackable {
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@Override
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public void addAdditionalSaveData(CompoundTag nbt) {
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+ // Paper start
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+ if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) {
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+ nbt.putString("Paper.FrictionState", this.frictionState.toString());
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+ }
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+ // Paper end
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nbt.putFloat("Health", this.getHealth());
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nbt.putShort("HurtTime", (short) this.hurtTime);
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nbt.putInt("HurtByTimestamp", this.lastHurtByMobTimestamp);
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@@ -803,6 +809,15 @@ public abstract class LivingEntity extends Entity implements Attackable {
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absorptionAmount = 0;
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}
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this.internalSetAbsorptionAmount(absorptionAmount);
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+
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+ if (nbt.contains("Paper.FrictionState")) {
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+ String fs = nbt.getString("Paper.FrictionState");
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+ try {
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+ frictionState = net.kyori.adventure.util.TriState.valueOf(fs);
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+ } catch (Exception ignored) {
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+ LOGGER.error("Unknown friction state " + fs + " for " + this);
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+ }
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+ }
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// Paper end
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if (nbt.contains("Attributes", 9) && this.level() != null && !this.level().isClientSide) {
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this.getAttributes().load(nbt.getList("Attributes", 10));
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diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
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index 1a06d8c839e94fe2c1920035d606b62e0dc5cfba..eb0351aa12eebcefab1d1d14641fc3c60cbbcab8 100644
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--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
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@@ -55,6 +55,7 @@ public class ItemEntity extends Entity implements TraceableEntity {
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private int lastTick = MinecraftServer.currentTick - 1; // CraftBukkit
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public boolean canMobPickup = true; // Paper
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private int despawnRate = -1; // Paper
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+ public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper
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public ItemEntity(EntityType<? extends ItemEntity> type, Level world) {
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super(type, world);
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@@ -160,7 +161,11 @@ public class ItemEntity extends Entity implements TraceableEntity {
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this.move(MoverType.SELF, this.getDeltaMovement());
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float f1 = 0.98F;
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- if (this.onGround()) {
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+ // Paper start
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+ if (frictionState == net.kyori.adventure.util.TriState.FALSE) {
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+ f1 = 1F;
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+ } else if (this.onGround()) {
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+ // Paper end
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f1 = this.level().getBlockState(this.getBlockPosBelowThatAffectsMyMovement()).getBlock().getFriction() * 0.98F;
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}
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@@ -369,6 +374,11 @@ public class ItemEntity extends Entity implements TraceableEntity {
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@Override
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public void addAdditionalSaveData(CompoundTag nbt) {
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+ // Paper start
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+ if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) {
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+ nbt.putString("Paper.FrictionState", this.frictionState.toString());
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+ }
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+ // Paper end
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nbt.putShort("Health", (short) this.health);
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nbt.putShort("Age", (short) this.age);
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nbt.putShort("PickupDelay", (short) this.pickupDelay);
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@@ -402,6 +412,17 @@ public class ItemEntity extends Entity implements TraceableEntity {
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this.thrower = nbt.getUUID("Thrower");
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}
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+ // Paper start
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+ if (nbt.contains("Paper.FrictionState")) {
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+ String fs = nbt.getString("Paper.FrictionState");
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+ try {
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+ frictionState = net.kyori.adventure.util.TriState.valueOf(fs);
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+ } catch (Exception ignored) {
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+ com.mojang.logging.LogUtils.getLogger().error("Unknown friction state " + fs + " for " + this);
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+ }
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+ }
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+ // Paper end
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+
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CompoundTag nbttagcompound1 = nbt.getCompound("Item");
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this.setItem(ItemStack.of(nbttagcompound1));
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
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index 073643d7f83b974509cf2dd4ea41e3dd9cb90a0d..f444e843535ec68ede0f05e7e7ef182ce872342b 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
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@@ -99,6 +99,18 @@ public class CraftItem extends CraftEntity implements Item {
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this.getHandle().age = willAge ? 0 : NO_AGE_TIME;
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}
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+ @org.jetbrains.annotations.NotNull
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+ @Override
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+ public net.kyori.adventure.util.TriState getFrictionState() {
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+ return this.getHandle().frictionState;
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+ }
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+
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+ @Override
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+ public void setFrictionState(@org.jetbrains.annotations.NotNull net.kyori.adventure.util.TriState state) {
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+ java.util.Objects.requireNonNull(state, "state may not be null");
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+ this.getHandle().frictionState = state;
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+ }
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+
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@Override
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public int getHealth() {
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return this.getHandle().health;
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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index c50a98ebfec5d8d708d5a42c77a45a101a3eac1b..dd11d52ae56b4dabdc4ff461186e91c316be3488 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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@@ -1080,6 +1080,18 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
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});
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}
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+ @org.jetbrains.annotations.NotNull
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+ @Override
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+ public net.kyori.adventure.util.TriState getFrictionState() {
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+ return this.getHandle().frictionState;
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+ }
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+
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+ @Override
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+ public void setFrictionState(@org.jetbrains.annotations.NotNull net.kyori.adventure.util.TriState state) {
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+ java.util.Objects.requireNonNull(state, "state may not be null");
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+ this.getHandle().frictionState = state;
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+ }
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+
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@Override
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public void knockback(double strength, double directionX, double directionZ) {
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Preconditions.checkArgument(strength > 0, "Knockback strength must be > 0");
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