PaperMC/patches/server/0750-Correctly-handle-interactions-with-items-on-cooldown.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

60 lines
3.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 16 Jun 2022 21:57:02 -0700
Subject: [PATCH] Correctly handle interactions with items on cooldown
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index 03d89f326d320c5d778c3d1e2db7d6b88753faec..717d015dd4637dd9d568b751be1dc1046b0a0560 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -514,6 +514,7 @@ public class ServerPlayerGameMode {
BlockPos blockposition = hitResult.getBlockPos();
BlockState iblockdata = world.getBlockState(blockposition);
boolean cancelledBlock = false;
+ boolean cancelledItem = false; // Paper - correctly handle items on cooldown
if (!iblockdata.getBlock().isEnabled(world.enabledFeatures())) {
return InteractionResult.FAIL;
@@ -523,10 +524,10 @@ public class ServerPlayerGameMode {
}
if (player.getCooldowns().isOnCooldown(stack.getItem())) {
- cancelledBlock = true;
+ cancelledItem = true; // Paper - correctly handle items on cooldown
}
- PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(player, Action.RIGHT_CLICK_BLOCK, blockposition, hitResult.getDirection(), stack, cancelledBlock, hand, hitResult.getLocation());
+ PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(player, Action.RIGHT_CLICK_BLOCK, blockposition, hitResult.getDirection(), stack, cancelledBlock, cancelledItem, hand, hitResult.getLocation()); // Paper - correctly handle items on cooldown
this.firedInteract = true;
this.interactResult = event.useItemInHand() == Event.Result.DENY;
this.interactPosition = blockposition.immutable();
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index ba1599b733946bef468a9b006411f8827844e791..b6cca72b4785d5cf009077c81c1cca718d8cfe28 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -556,6 +556,12 @@ public class CraftEventFactory {
}
public static PlayerInteractEvent callPlayerInteractEvent(net.minecraft.world.entity.player.Player who, Action action, BlockPos position, Direction direction, ItemStack itemstack, boolean cancelledBlock, InteractionHand hand, Vec3 targetPos) {
+ // Paper start - cancelledItem param
+ return CraftEventFactory.callPlayerInteractEvent(who, action, position, direction, itemstack, cancelledBlock, false, hand, targetPos);
+ }
+
+ public static PlayerInteractEvent callPlayerInteractEvent(net.minecraft.world.entity.player.Player who, Action action, BlockPos position, Direction direction, ItemStack itemstack, boolean cancelledBlock, boolean cancelledItem, InteractionHand hand, Vec3 targetPos) {
+ // Paper end - cancelledItem param
Player player = (who == null) ? null : (Player) who.getBukkitEntity();
CraftItemStack itemInHand = CraftItemStack.asCraftMirror(itemstack);
@@ -590,6 +596,11 @@ public class CraftEventFactory {
if (cancelledBlock) {
event.setUseInteractedBlock(Event.Result.DENY);
}
+ // Paper start
+ if (cancelledItem) {
+ event.setUseItemInHand(Result.DENY);
+ }
+ // Paper end
craftServer.getPluginManager().callEvent(event);
return event;