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c5a10665b8
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.
107 lines
5.3 KiB
Diff
107 lines
5.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
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Date: Sun, 5 Dec 2021 14:58:17 -0500
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Subject: [PATCH] Expand FallingBlock API
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- add auto expire setting
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- add setter for block data
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- add accessors for block state
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== AT ==
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public net.minecraft.world.entity.item.FallingBlockEntity blockState
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Co-authored-by: Lukas Planz <lukas.planz@web.de>
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diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
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index 01ac7bb0ef8ab13e7c4b5b56b768b7c0a642b300..caf9273cfafbbaaf8dc95498927383e608773665 100644
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--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
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@@ -71,6 +71,7 @@ public class FallingBlockEntity extends Entity {
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public CompoundTag blockData;
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public boolean forceTickAfterTeleportToDuplicate;
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protected static final EntityDataAccessor<BlockPos> DATA_START_POS = SynchedEntityData.defineId(FallingBlockEntity.class, EntityDataSerializers.BLOCK_POS);
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+ public boolean autoExpire = true; // Paper - Expand FallingBlock API
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public FallingBlockEntity(EntityType<? extends FallingBlockEntity> type, Level world) {
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super(type, world);
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@@ -176,7 +177,7 @@ public class FallingBlockEntity extends Entity {
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}
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if (!this.onGround() && !flag1) {
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- if (!this.level().isClientSide && (this.time > 100 && (blockposition.getY() <= this.level().getMinBuildHeight() || blockposition.getY() > this.level().getMaxBuildHeight()) || this.time > 600)) {
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+ 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
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if (this.dropItem && this.level().getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
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this.spawnAtLocation((ItemLike) block);
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}
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@@ -322,6 +323,7 @@ public class FallingBlockEntity extends Entity {
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}
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nbt.putBoolean("CancelDrop", this.cancelDrop);
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+ if (!autoExpire) {nbt.putBoolean("Paper.AutoExpire", false);} // Paper - Expand FallingBlock API
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}
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@Override
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@@ -349,6 +351,11 @@ public class FallingBlockEntity extends Entity {
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this.blockState = Blocks.SAND.defaultBlockState();
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}
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+ // Paper start - Expand FallingBlock API
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+ if (nbt.contains("Paper.AutoExpire")) {
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+ this.autoExpire = nbt.getBoolean("Paper.AutoExpire");
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+ }
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+ // Paper end - Expand FallingBlock API
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}
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public void setHurtsEntities(float fallHurtAmount, int fallHurtMax) {
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java
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index a7a3f74b846112d752fe04162b30805961457b11..1359d25a32b4a5d5e8e68ce737bd19f7b5afaf69 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingBlock.java
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@@ -33,6 +33,31 @@ public class CraftFallingBlock extends CraftEntity implements FallingBlock {
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public BlockData getBlockData() {
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return CraftBlockData.fromData(this.getHandle().getBlockState());
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}
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+ // Paper start - Expand FallingBlock API
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+ @Override
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+ public void setBlockData(final BlockData blockData) {
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+ Preconditions.checkArgument(blockData != null, "blockData");
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+ final net.minecraft.world.level.block.state.BlockState oldState = this.getHandle().blockState, newState = ((CraftBlockData) blockData).getState();
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+ this.getHandle().blockState = newState;
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+ this.getHandle().blockData = null;
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+
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+ if (oldState != newState) this.update();
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+ }
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+
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+ @Override
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+ public org.bukkit.block.BlockState getBlockState() {
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+ return org.bukkit.craftbukkit.block.CraftBlockStates.getBlockState(this.getHandle().blockState, this.getHandle().blockData);
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+ }
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+
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+ @Override
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+ public void setBlockState(final org.bukkit.block.BlockState blockState) {
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+ Preconditions.checkArgument(blockState != null, "blockState");
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+ // 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.
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+ // The call also clears any potential old block data.
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+ this.setBlockData(blockState.getBlockData());
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+ if (blockState instanceof final org.bukkit.craftbukkit.block.CraftBlockEntityState<?> tileEntity) this.getHandle().blockData = tileEntity.getSnapshotNBT();
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+ }
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+ // Paper end - Expand FallingBlock API
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@Override
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public boolean getDropItem() {
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@@ -101,4 +126,15 @@ public class CraftFallingBlock extends CraftEntity implements FallingBlock {
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this.setHurtEntities(true);
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}
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}
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+ // Paper start - Expand FallingBlock API
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+ @Override
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+ public boolean doesAutoExpire() {
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+ return this.getHandle().autoExpire;
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+ }
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+
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+ @Override
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+ public void shouldAutoExpire(boolean autoExpires) {
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+ this.getHandle().autoExpire = autoExpires;
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+ }
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+ // Paper end - Expand FallingBlock API
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}
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