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https://github.com/PaperMC/Paper.git
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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.
57 Zeilen
2.6 KiB
Diff
57 Zeilen
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: dfsek <dfsek@protonmail.com>
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Date: Sat, 19 Jun 2021 20:15:59 -0700
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Subject: [PATCH] Add more LimitedRegion API
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diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
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index e7266835946c3bf49dbd83fe677481e8eddd16e5..7d6ee60b1d3e023e1eabc59eb591c3ae3d8ac043 100644
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--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
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+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
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@@ -254,4 +254,45 @@ public class CraftLimitedRegion extends CraftRegionAccessor implements LimitedRe
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public void addEntityWithPassengers(net.minecraft.world.entity.Entity entity, CreatureSpawnEvent.SpawnReason reason) {
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this.entities.add(entity);
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}
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+
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+ // Paper start - Add more LimitedRegion API
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+ @Override
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+ public void setBlockState(int x, int y, int z, BlockState state) {
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+ BlockPos pos = new BlockPos(x, y, z);
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+ if (!state.getBlockData().matches(getHandle().getBlockState(pos).createCraftBlockData())) {
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+ throw new IllegalArgumentException("BlockData does not match! Expected " + state.getBlockData().getAsString(false) + ", got " + getHandle().getBlockState(pos).createCraftBlockData().getAsString(false));
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+ }
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+ getHandle().getBlockEntity(pos).loadWithComponents(((org.bukkit.craftbukkit.block.CraftBlockEntityState<?>) state).getSnapshotNBT(), this.getHandle().registryAccess());
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+ }
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+
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+ @Override
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+ public void scheduleBlockUpdate(int x, int y, int z) {
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+ BlockPos position = new BlockPos(x, y, z);
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+ getHandle().scheduleTick(position, getHandle().getBlockState(position).getBlock(), 0);
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+ }
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+
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+ @Override
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+ public void scheduleFluidUpdate(int x, int y, int z) {
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+ BlockPos position = new BlockPos(x, y, z);
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+ getHandle().scheduleTick(position, getHandle().getFluidState(position).getType(), 0);
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+ }
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+
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+ @Override
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+ public World getWorld() {
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+ // reading/writing the returned Minecraft world causes a deadlock.
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+ // By implementing this, and covering it in warnings, we're assuming people won't be stupid, and
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+ // if they are stupid, they'll figure it out pretty fast.
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+ return getHandle().getMinecraftWorld().getWorld();
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+ }
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+
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+ @Override
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+ public int getCenterChunkX() {
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+ return centerChunkX;
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+ }
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+
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+ @Override
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+ public int getCenterChunkZ() {
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+ return centerChunkZ;
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+ }
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+ // Paper end - Add more LimitedRegion API
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}
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