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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.
137 lines
7.6 KiB
Diff
137 lines
7.6 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: Fri, 29 Apr 2016 20:02:00 -0400
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Subject: [PATCH] Improve Maps (in item frames) performance and bug fixes
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Maps used a modified version of rendering to support plugin controlled
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imaging on maps. The Craft Map Renderer is much slower than Vanilla,
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causing maps in item frames to cause a noticeable hit on server performance.
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This updates the map system to not use the Craft system if we detect that no
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custom renderers are in use, defaulting to the much simpler Vanilla system.
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Additionally, numerous issues to player position tracking on maps has been fixed.
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index c2189752a422f39428b2c0f1408f359f20c388e5..dec865affbaaa71d09806143d13a854100b98f23 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -2494,6 +2494,7 @@ public class ServerLevel extends Level implements WorldGenLevel, ca.spottedleaf.
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{
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if ( iter.next().player == entity )
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{
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+ map.decorations.remove(entity.getName().getString()); // Paper
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iter.remove();
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}
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}
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diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
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index d0b51d96d6795b5fa03bc195b90324680545b752..09bcbc0ae36e4e69fee87a7e0c49acf496117a39 100644
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--- a/src/main/java/net/minecraft/world/entity/player/Player.java
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+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
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@@ -808,6 +808,14 @@ public abstract class Player extends LivingEntity {
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return null;
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}
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// CraftBukkit end
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+ // Paper start - remove player from map on drop
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+ if (itemstack.getItem() == Items.FILLED_MAP) {
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+ net.minecraft.world.level.saveddata.maps.MapItemSavedData worldmap = net.minecraft.world.item.MapItem.getSavedData(itemstack, this.level());
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+ if (worldmap != null) {
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+ worldmap.tickCarriedBy(this, itemstack);
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+ }
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+ }
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+ // Paper end
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return entityitem;
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}
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diff --git a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
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index a43544704109f21bab230dd9bf0401e28f878582..6794466051dd4b725d579b2136c37844995a648e 100644
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--- a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
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+++ b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
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@@ -79,6 +79,7 @@ public class MapItemSavedData extends SavedData {
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public final Map<String, MapDecoration> decorations = Maps.newLinkedHashMap();
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private final Map<String, MapFrame> frameMarkers = Maps.newHashMap();
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private int trackedDecorationCount;
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+ private org.bukkit.craftbukkit.map.RenderData vanillaRender = new org.bukkit.craftbukkit.map.RenderData(); // Paper
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// CraftBukkit start
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public final CraftMapView mapView;
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@@ -105,6 +106,7 @@ public class MapItemSavedData extends SavedData {
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// CraftBukkit start
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this.mapView = new CraftMapView(this);
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this.server = (CraftServer) org.bukkit.Bukkit.getServer();
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+ this.vanillaRender.buffer = colors; // Paper
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// CraftBukkit end
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}
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@@ -179,6 +181,7 @@ public class MapItemSavedData extends SavedData {
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if (abyte.length == 16384) {
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worldmap.colors = abyte;
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}
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+ worldmap.vanillaRender.buffer = abyte; // Paper
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RegistryOps<Tag> registryops = registryLookup.createSerializationContext(NbtOps.INSTANCE);
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List<MapBanner> list = (List) MapBanner.LIST_CODEC.parse(registryops, nbt.get("banners")).resultOrPartial((s) -> {
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@@ -348,7 +351,7 @@ public class MapItemSavedData extends SavedData {
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--this.trackedDecorationCount;
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}
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- this.setDecorationsDirty();
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+ if (mapicon != null) this.setDecorationsDirty(); // Paper - only mark dirty if a change occurs
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}
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public static void addTargetDecoration(ItemStack stack, BlockPos pos, String id, Holder<MapDecorationType> decorationType) {
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@@ -588,6 +591,21 @@ public class MapItemSavedData extends SavedData {
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public class HoldingPlayer {
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+ // Paper start
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+ private void addSeenPlayers(java.util.Collection<MapDecoration> icons) {
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+ org.bukkit.entity.Player player = (org.bukkit.entity.Player) this.player.getBukkitEntity();
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+ MapItemSavedData.this.decorations.forEach((name, mapIcon) -> {
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+ // If this cursor is for a player check visibility with vanish system
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+ org.bukkit.entity.Player other = org.bukkit.Bukkit.getPlayerExact(name); // Spigot
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+ if (other == null || player.canSee(other)) {
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+ icons.add(mapIcon);
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+ }
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+ });
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+ }
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+ private boolean shouldUseVanillaMap() {
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+ return mapView.getRenderers().size() == 1 && mapView.getRenderers().get(0).getClass() == org.bukkit.craftbukkit.map.CraftMapRenderer.class;
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+ }
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+ // Paper end
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public final Player player;
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private boolean dirtyData = true;
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private int minDirtyX;
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@@ -621,7 +639,9 @@ public class MapItemSavedData extends SavedData {
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@Nullable
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Packet<?> nextUpdatePacket(MapId mapId) {
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MapItemSavedData.MapPatch worldmap_b;
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- org.bukkit.craftbukkit.map.RenderData render = MapItemSavedData.this.mapView.render((org.bukkit.craftbukkit.entity.CraftPlayer) this.player.getBukkitEntity()); // CraftBukkit
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+ if (!this.dirtyData && this.tick % 5 != 0) { this.tick++; return null; } // Paper - this won't end up sending, so don't render it!
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+ boolean vanillaMaps = shouldUseVanillaMap(); // Paper
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+ org.bukkit.craftbukkit.map.RenderData render = !vanillaMaps ? MapItemSavedData.this.mapView.render((org.bukkit.craftbukkit.entity.CraftPlayer) this.player.getBukkitEntity()) : MapItemSavedData.this.vanillaRender; // CraftBukkit // Paper
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if (this.dirtyData) {
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this.dirtyData = false;
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@@ -637,6 +657,8 @@ public class MapItemSavedData extends SavedData {
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// CraftBukkit start
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java.util.Collection<MapDecoration> icons = new java.util.ArrayList<MapDecoration>();
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+ if (vanillaMaps) addSeenPlayers(icons); // Paper
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+
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for (org.bukkit.map.MapCursor cursor : render.cursors) {
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if (cursor.isVisible()) {
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icons.add(new MapDecoration(CraftMapCursor.CraftType.bukkitToMinecraftHolder(cursor.getType()), cursor.getX(), cursor.getY(), cursor.getDirection(), Optional.ofNullable(PaperAdventure.asVanilla(cursor.caption()))));
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diff --git a/src/main/java/org/bukkit/craftbukkit/map/RenderData.java b/src/main/java/org/bukkit/craftbukkit/map/RenderData.java
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index 256a131781721c86dd6cdbc329335964570cbe8c..5768cd512ec166f1e8d1f4a28792015347297c3f 100644
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--- a/src/main/java/org/bukkit/craftbukkit/map/RenderData.java
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+++ b/src/main/java/org/bukkit/craftbukkit/map/RenderData.java
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@@ -5,7 +5,7 @@ import org.bukkit.map.MapCursor;
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public class RenderData {
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- public final byte[] buffer;
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+ public byte[] buffer; // Paper
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public final ArrayList<MapCursor> cursors;
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public RenderData() {
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