5d8b3d4969
Spigot had code that returned early in chunk add/remove methods. This was causing our code added to set current chunks and counts to be skipped over if the entity was default not persistent but made persistent. This was the source of many issues Fixes #1208
95 lines
4.1 KiB
Diff
95 lines
4.1 KiB
Diff
From 8878c3563aa9f2217bd4ea486aa52ee394b69f01 Mon Sep 17 00:00:00 2001
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From: CullanP <cullanpage@gmail.com>
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Date: Thu, 3 Mar 2016 02:13:38 -0600
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Subject: [PATCH] Avoid hopper searches if there are no items
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Hoppers searching for items and minecarts is the most expensive part of hopper ticking.
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We keep track of the number of minecarts and items in a chunk.
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If there are no items in the chunk, we skip searching for items.
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If there are no minecarts in the chunk, we skip searching for them.
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Usually hoppers aren't near items, so we can skip most item searches.
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And since minecart hoppers are used _very_ rarely near we can avoid alot of searching there.
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Combined, this adds up a lot.
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diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
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index d6f6cfef2..08d6ef09a 100644
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--- a/src/main/java/net/minecraft/server/Chunk.java
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+++ b/src/main/java/net/minecraft/server/Chunk.java
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@@ -76,6 +76,13 @@ public class Chunk {
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public boolean d;
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protected gnu.trove.map.hash.TObjectIntHashMap<Class> entityCount = new gnu.trove.map.hash.TObjectIntHashMap<Class>(); // Spigot
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+ // Paper start
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+ // Track the number of minecarts and items
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+ // Keep this synced with entitySlices.add() and entitySlices.remove()
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+ private final int[] itemCounts = new int[16];
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+ private final int[] inventoryEntityCounts = new int[16];
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+ // Paper end
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+
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// CraftBukkit start - Neighbor loaded cache for chunk lighting and entity ticking
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private int neighbors = 0x1 << 12;
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public long chunkKey;
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@@ -651,6 +658,11 @@ public class Chunk {
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// Paper start
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entity.setCurrentChunk(this);
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entityCounts.increment(entity.entityKeyString);
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+ if (entity instanceof EntityItem) {
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+ itemCounts[k]++;
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+ } else if (entity instanceof IInventory) {
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+ inventoryEntityCounts[k]++;
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+ }
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// Paper end
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// Spigot start - increment creature type count
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// Keep this synced up with World.a(Class)
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@@ -687,6 +699,11 @@ public class Chunk {
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// Paper start
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entity.setCurrentChunk(null);
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entityCounts.decrement(entity.entityKeyString);
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+ if (entity instanceof EntityItem) {
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+ itemCounts[i]--;
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+ } else if (entity instanceof IInventory) {
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+ inventoryEntityCounts[i]--;
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+ }
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// Paper end
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// Spigot start - decrement creature type count
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// Keep this synced up with World.a(Class)
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@@ -879,6 +896,15 @@ public class Chunk {
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if (!this.entitySlices[k].isEmpty()) {
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Iterator iterator = this.entitySlices[k].iterator();
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+ // Paper start - Don't search for inventories if we have none, and that is all we want
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+ /*
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+ * We check if they want inventories by seeing if it is the static `IEntitySelector.c`
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+ *
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+ * Make sure the inventory selector stays in sync.
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+ * It should be the one that checks `var1 instanceof IInventory && var1.isAlive()`
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+ */
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+ if (predicate == IEntitySelector.c && inventoryEntityCounts[k] <= 0) continue;
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+ // Paper end
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while (iterator.hasNext()) {
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Entity entity1 = (Entity) iterator.next();
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@@ -915,7 +941,18 @@ public class Chunk {
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i = MathHelper.clamp(i, 0, this.entitySlices.length - 1);
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j = MathHelper.clamp(j, 0, this.entitySlices.length - 1);
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+ // Paper start
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+ int[] counts;
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+ if (EntityItem.class.isAssignableFrom(oclass)) {
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+ counts = itemCounts;
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+ } else if (IInventory.class.isAssignableFrom(oclass)) {
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+ counts = inventoryEntityCounts;
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+ } else {
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+ counts = null;
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+ }
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+ // Paper end
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for (int k = i; k <= j; ++k) {
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+ if (counts != null && counts[k] <= 0) continue; // Paper - Don't check a chunk if it doesn't have the type we are looking for
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Iterator iterator = this.entitySlices[k].iterator(); // Spigot
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while (iterator.hasNext()) {
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--
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2.18.0
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