13
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geforkt von Mirrors/Paper
Paper/patches/server/0787-Expose-pre-collision-moving-velocity-to-VehicleBlock.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

29 Zeilen
1.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: SoSeDiK <mrsosedik@gmail.com>
Date: Tue, 11 Oct 2022 23:30:32 +0300
Subject: [PATCH] Expose pre-collision moving velocity to
VehicleBlockCollisionEvent
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 303f3656be5e9049cd195030c457df9a7c718b66..34e175b28f7c9120b58fc8e2b65ca978c7f301b5 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -942,6 +942,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
}
public void move(MoverType movementType, Vec3 movement) {
+ final Vec3 originalMovement = movement; // Paper - Expose pre-collision velocity
if (this.noPhysics) {
this.setPos(this.getX() + movement.x, this.getY() + movement.y, this.getZ() + movement.z);
} else {
@@ -1026,7 +1027,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
}
if (!bl.getType().isAir()) {
- VehicleBlockCollisionEvent event = new VehicleBlockCollisionEvent(vehicle, bl);
+ VehicleBlockCollisionEvent event = new VehicleBlockCollisionEvent(vehicle, bl, org.bukkit.craftbukkit.util.CraftVector.toBukkit(originalMovement)); // Paper - Expose pre-collision velocity
this.level.getCraftServer().getPluginManager().callEvent(event);
}
}