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01a13871de
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
48 lines
2.5 KiB
Diff
48 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 6 Feb 2019 00:20:33 -0500
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Subject: [PATCH] BlockDestroyEvent
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Adds an event for when the server is going to destroy a current block,
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potentially causing it to drop. This event can be cancelled to avoid
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the block destruction, such as preventing signs from popping when
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floating in the air.
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This can replace many uses of BlockPhysicsEvent
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 9ed8117afa4eb1ff9e7403d3ab92a9e6cb0fab73..1a474fb88dc1447fb754e8ad936ab6add470359c 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -28,6 +28,7 @@ import net.minecraft.nbt.CompoundTag;
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import net.minecraft.network.protocol.Packet;
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import net.minecraft.resources.ResourceKey;
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import net.minecraft.resources.ResourceLocation;
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+import net.minecraft.server.MCUtil;
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import net.minecraft.server.MinecraftServer;
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import net.minecraft.server.level.ChunkHolder;
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import net.minecraft.server.level.ServerLevel;
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@@ -583,8 +584,21 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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return false;
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} else {
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FluidState fluid = this.getFluidState(pos);
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+ // Paper start - while the above setAir method is named same and looks very similar
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+ // they are NOT used with same intent and the above should not fire this event. The above method is more of a BlockSetToAirEvent,
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+ // it doesn't imply destruction of a block that plays a sound effect / drops an item.
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+ boolean playEffect = true;
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+ if (com.destroystokyo.paper.event.block.BlockDestroyEvent.getHandlerList().getRegisteredListeners().length > 0) {
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+ com.destroystokyo.paper.event.block.BlockDestroyEvent event = new com.destroystokyo.paper.event.block.BlockDestroyEvent(MCUtil.toBukkitBlock(this, pos), fluid.createLegacyBlock().createCraftBlockData(), drop);
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+ if (!event.callEvent()) {
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+ return false;
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+ }
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+ playEffect = event.playEffect();
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+ drop = event.willDrop();
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+ }
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+ // Paper end
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- if (!(iblockdata.getBlock() instanceof BaseFireBlock)) {
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+ if (playEffect && !(iblockdata.getBlock() instanceof BaseFireBlock)) { // Paper
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this.levelEvent(2001, pos, Block.getId(iblockdata));
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}
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