From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Noah van der Aa 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 9ea6c0b250c361949a7f2d2c6b5fb2eeac7c650a..58fdbdcc5de9f93230669d93778c4c1392e0a4cf 100644 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java +++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java @@ -261,6 +261,7 @@ 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 @Override public float getBukkitYaw() { @@ -716,7 +717,7 @@ public abstract class LivingEntity extends Entity implements Attackable { } public boolean shouldDiscardFriction() { - return this.discardFriction; + return !this.frictionState.toBooleanOrElse(!this.discardFriction); // Paper } public void setDiscardFriction(boolean noDrag) { @@ -760,6 +761,11 @@ public abstract class LivingEntity extends Entity implements Attackable { @Override public void addAdditionalSaveData(CompoundTag nbt) { + // Paper start + if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) { + nbt.putString("Paper.FrictionState", this.frictionState.toString()); + } + // Paper end nbt.putFloat("Health", this.getHealth()); nbt.putShort("HurtTime", (short) this.hurtTime); nbt.putInt("HurtByTimestamp", this.lastHurtByMobTimestamp); @@ -802,6 +808,15 @@ public abstract class LivingEntity extends Entity implements Attackable { absorptionAmount = 0; } this.internalSetAbsorptionAmount(absorptionAmount); + + 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 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 6b18f23b57c7000dce9726df98a509ee9477f6d2..a39db702063887cf530f272deaf4f334047cc7d4 100644 --- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java +++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java @@ -57,6 +57,7 @@ public class ItemEntity extends Entity implements TraceableEntity { private int lastTick = MinecraftServer.currentTick - 1; // CraftBukkit public boolean canMobPickup = true; // Paper private int despawnRate = -1; // Paper + public net.kyori.adventure.util.TriState frictionState = net.kyori.adventure.util.TriState.NOT_SET; // Paper public ItemEntity(EntityType type, Level world) { super(type, world); @@ -178,7 +179,11 @@ public class ItemEntity extends Entity implements TraceableEntity { this.move(MoverType.SELF, this.getDeltaMovement()); float f1 = 0.98F; - if (this.onGround()) { + // Paper start + if (frictionState == net.kyori.adventure.util.TriState.FALSE) { + f1 = 1F; + } else if (this.onGround()) { + // Paper end f1 = this.level().getBlockState(this.getBlockPosBelowThatAffectsMyMovement()).getBlock().getFriction() * 0.98F; } @@ -387,6 +392,11 @@ public class ItemEntity extends Entity implements TraceableEntity { @Override public void addAdditionalSaveData(CompoundTag nbt) { + // Paper start + if (this.frictionState != net.kyori.adventure.util.TriState.NOT_SET) { + nbt.putString("Paper.FrictionState", this.frictionState.toString()); + } + // Paper end nbt.putShort("Health", (short) this.health); nbt.putShort("Age", (short) this.age); nbt.putShort("PickupDelay", (short) this.pickupDelay); @@ -421,6 +431,17 @@ public class ItemEntity extends Entity implements TraceableEntity { this.cachedThrower = null; } + // Paper start + 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 + CompoundTag nbttagcompound1 = nbt.getCompound("Item"); this.setItem(ItemStack.of(nbttagcompound1)); diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java index b1bbab951ef9a3d2bd98cc54665ba824263542eb..81498941748d646ebe6495f4a7ce6953532144c6 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 14ff9f9951bbb567ad76198477d61d22d522dac9..edb086d479f2485b3ec7a6fffe2c7e4a15f0c319 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java @@ -1085,6 +1085,18 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity { }); } + @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 void knockback(double strength, double directionX, double directionZ) { Preconditions.checkArgument(strength > 0, "Knockback strength must be > 0");