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Paper-Old/patches/server/0700-Expand-FallingBlock-API.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
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.
2024-09-19 16:36:07 +02:00

108 Zeilen
5.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sun, 5 Dec 2021 14:58:17 -0500
Subject: [PATCH] Expand FallingBlock API
- add auto expire setting
- add setter for block data
- add accessors for block state
== AT ==
public net.minecraft.world.entity.item.FallingBlockEntity blockState
Co-authored-by: Lukas Planz <lukas.planz@web.de>
diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
index 01ac7bb0ef8ab13e7c4b5b56b768b7c0a642b300..caf9273cfafbbaaf8dc95498927383e608773665 100644
--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
@@ -71,6 +71,7 @@ public class FallingBlockEntity extends Entity {
public CompoundTag blockData;
public boolean forceTickAfterTeleportToDuplicate;
protected static final EntityDataAccessor<BlockPos> DATA_START_POS = SynchedEntityData.defineId(FallingBlockEntity.class, EntityDataSerializers.BLOCK_POS);
+ public boolean autoExpire = true; // Paper - Expand FallingBlock API
public FallingBlockEntity(EntityType<? extends FallingBlockEntity> type, Level world) {
super(type, world);
@@ -176,7 +177,7 @@ public class FallingBlockEntity extends Entity {
}
if (!this.onGround() && !flag1) {
- if (!this.level().isClientSide && (this.time > 100 && (blockposition.getY() <= this.level().getMinBuildHeight() || blockposition.getY() > this.level().getMaxBuildHeight()) || this.time > 600)) {
+ if (!this.level().isClientSide && ((this.time > 100 && autoExpire) && (blockposition.getY() <= this.level().getMinBuildHeight() || blockposition.getY() > this.level().getMaxBuildHeight()) || (this.time > 600 && autoExpire))) { // Paper - Expand FallingBlock API
if (this.dropItem && this.level().getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
this.spawnAtLocation((ItemLike) block);
}
@@ -322,6 +323,7 @@ public class FallingBlockEntity extends Entity {
}
nbt.putBoolean("CancelDrop", this.cancelDrop);
+ if (!autoExpire) {nbt.putBoolean("Paper.AutoExpire", false);} // Paper - Expand FallingBlock API
}
@Override
@@ -349,6 +351,11 @@ public class FallingBlockEntity extends Entity {
this.blockState = Blocks.SAND.defaultBlockState();
}
+ // Paper start - Expand FallingBlock API
+ if (nbt.contains("Paper.AutoExpire")) {
+ this.autoExpire = nbt.getBoolean("Paper.AutoExpire");
+ }
+ // Paper end - Expand FallingBlock API
}
public void setHurtsEntities(float fallHurtAmount, int fallHurtMax) {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java
index a7a3f74b846112d752fe04162b30805961457b11..1359d25a32b4a5d5e8e68ce737bd19f7b5afaf69 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java
@@ -33,6 +33,31 @@ public class CraftFallingBlock extends CraftEntity implements FallingBlock {
public BlockData getBlockData() {
return CraftBlockData.fromData(this.getHandle().getBlockState());
}
+ // Paper start - Expand FallingBlock API
+ @Override
+ public void setBlockData(final BlockData blockData) {
+ Preconditions.checkArgument(blockData != null, "blockData");
+ final net.minecraft.world.level.block.state.BlockState oldState = this.getHandle().blockState, newState = ((CraftBlockData) blockData).getState();
+ this.getHandle().blockState = newState;
+ this.getHandle().blockData = null;
+
+ if (oldState != newState) this.update();
+ }
+
+ @Override
+ public org.bukkit.block.BlockState getBlockState() {
+ return org.bukkit.craftbukkit.block.CraftBlockStates.getBlockState(this.getHandle().blockState, this.getHandle().blockData);
+ }
+
+ @Override
+ public void setBlockState(final org.bukkit.block.BlockState blockState) {
+ Preconditions.checkArgument(blockState != null, "blockState");
+ // Calls #update if needed, the block data compound tag is not synced with the client and hence can be mutated after the sync with clients.
+ // The call also clears any potential old block data.
+ this.setBlockData(blockState.getBlockData());
+ if (blockState instanceof final org.bukkit.craftbukkit.block.CraftBlockEntityState<?> tileEntity) this.getHandle().blockData = tileEntity.getSnapshotNBT();
+ }
+ // Paper end - Expand FallingBlock API
@Override
public boolean getDropItem() {
@@ -101,4 +126,15 @@ public class CraftFallingBlock extends CraftEntity implements FallingBlock {
this.setHurtEntities(true);
}
}
+ // Paper start - Expand FallingBlock API
+ @Override
+ public boolean doesAutoExpire() {
+ return this.getHandle().autoExpire;
+ }
+
+ @Override
+ public void shouldAutoExpire(boolean autoExpires) {
+ this.getHandle().autoExpire = autoExpires;
+ }
+ // Paper end - Expand FallingBlock API
}