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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-11-15 04:20:04 +01:00
Paper/patches/server/0862-Configurable-entity-tracking-range-by-Y-coordinate.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

31 Zeilen
2.0 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: ruViolence <78062896+ruViolence@users.noreply.github.com>
Date: Tue, 27 Jun 2023 15:38:18 +0800
Subject: [PATCH] Configurable entity tracking range by Y coordinate
Options to configure entity tracking by Y coordinate, also for each entity category.
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index dca6087dc4e1c177c3dfdae01f140cf80c179803..57af5d1986021c9a135599c6f55b091aebd3bab7 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -1524,7 +1524,17 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
double d0 = (double) Math.min(this.getEffectiveRange(), i * 16);
double d1 = vec3d.x * vec3d.x + vec3d.z * vec3d.z;
double d2 = d0 * d0;
- boolean flag = d1 <= d2 && this.entity.broadcastToPlayer(player) && ChunkMap.this.isChunkTracked(player, this.entity.chunkPosition().x, this.entity.chunkPosition().z);
+ // Paper start - Configurable entity tracking range by Y
+ boolean flag = d1 <= d2;
+ if (flag && level.paperConfig().entities.trackingRangeY.enabled) {
+ double rangeY = level.paperConfig().entities.trackingRangeY.get(this.entity, -1);
+ if (rangeY != -1) {
+ double vec3d_dy = player.getY() - this.entity.getY();
+ flag = vec3d_dy * vec3d_dy <= rangeY * rangeY;
+ }
+ }
+ flag = flag && this.entity.broadcastToPlayer(player) && ChunkMap.this.isChunkTracked(player, this.entity.chunkPosition().x, this.entity.chunkPosition().z);
+ // Paper end - Configurable entity tracking range by Y
// CraftBukkit start - respect vanish API
if (!player.getBukkitEntity().canSee(this.entity.getBukkitEntity())) {