mirror of
https://github.com/PaperMC/Paper.git
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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
129 lines
7.0 KiB
Diff
129 lines
7.0 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 b6407dd3e5b87782503988f898bbf054e3f4e611..bd8c96e914b156284bdbb960f168e63e1f122920 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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@@ -2620,6 +2620,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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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 3e9c6e7e356ac08ec41736eaabf38714a8841d18..567704f61034363e48ef2a5b5566ebdc91682297 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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@@ -790,6 +790,14 @@ 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 ed57ce12d4d1cc632431a654cad648a8015402b1..45269115e63cfc3bd7dc740a5694e2cc7c35bcb1 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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@@ -66,6 +66,7 @@ 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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@@ -92,6 +93,7 @@ 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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@@ -166,6 +168,7 @@ 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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ListTag nbttaglist = nbt.getList("banners", 10);
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@@ -578,6 +581,21 @@ 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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@@ -611,7 +629,9 @@ public class MapItemSavedData extends SavedData {
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@Nullable
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Packet<?> nextUpdatePacket(int 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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@@ -627,6 +647,8 @@ 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(MapDecoration.Type.byIcon(cursor.getRawType()), cursor.getX(), cursor.getY(), cursor.getDirection(), PaperAdventure.asVanilla(cursor.caption()))); // Paper - Adventure
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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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