mirror of
https://github.com/PaperMC/Paper.git
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f4e3b4e439
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 5b680f0b Note maximum objective score length in documentation CraftBukkit Changes:5932f8a7Load default world spawn areas in consistent order3a5dc78fFix confusing migration message appearing on fresh server516a408fRemove redundant CraftBukkit change for secondary world data73a2c749Process conversation input on the main thread.100c3f07Cap Objective Score Length6e842759Cross World Entity Teleportation7deba1c6Check for blank OfflinePlayer Namesf2746a5eDescriptive kick reasons instead of Nope!b0212308Cap Channel Registrationsa610dcd8Identify CraftScheduler threads with useful names Spigot Changes: 19c3c5a5 Rebuild patches
161 lines
6.9 KiB
Diff
161 lines
6.9 KiB
Diff
From ec23a52d0e17927fc4da5330bdc546ea4c936ac5 Mon Sep 17 00:00:00 2001
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From: Byteflux <byte@byteflux.net>
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Date: Wed, 2 Mar 2016 11:59:48 -0600
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Subject: [PATCH] Optimize explosions
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The process of determining an entity's exposure from explosions can be
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expensive when there are hundreds or more entities in range.
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This patch adds a per-tick cache that is used for storing and retrieving
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an entity's exposure during an explosion.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index 5aee23dce..2ec3d9355 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -144,4 +144,10 @@ public class PaperWorldConfig {
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disableEndCredits = getBoolean("game-mechanics.disable-end-credits", false);
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log("End credits disabled: " + disableEndCredits);
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}
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+
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+ public boolean optimizeExplosions;
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+ private void optimizeExplosions() {
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+ optimizeExplosions = getBoolean("optimize-explosions", false);
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+ log("Optimize explosions: " + optimizeExplosions);
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+ }
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}
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diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
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index c4db6367e..3e44b2d54 100644
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--- a/src/main/java/net/minecraft/server/Explosion.java
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+++ b/src/main/java/net/minecraft/server/Explosion.java
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@@ -137,7 +137,7 @@ public class Explosion {
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d8 /= d11;
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d9 /= d11;
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d10 /= d11;
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- double d12 = (double) this.world.a(vec3d, entity.getBoundingBox());
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+ double d12 = this.getBlockDensity(vec3d, entity.getBoundingBox()); // Paper - Optimize explosions
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double d13 = (1.0D - d7) * d12;
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// CraftBukkit start
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@@ -313,4 +313,85 @@ public class Explosion {
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public List<BlockPosition> getBlocks() {
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return this.blocks;
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}
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+
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+ // Paper start - Optimize explosions
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+ private float getBlockDensity(Vec3D vec3d, AxisAlignedBB aabb) {
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+ if (!this.world.paperConfig.optimizeExplosions) {
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+ return this.world.a(vec3d, aabb);
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+ }
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+ CacheKey key = new CacheKey(this, aabb);
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+ Float blockDensity = this.world.explosionDensityCache.get(key);
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+ if (blockDensity == null) {
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+ blockDensity = this.world.a(vec3d, aabb);
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+ this.world.explosionDensityCache.put(key, blockDensity);
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+ }
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+
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+ return blockDensity;
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+ }
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+
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+ static class CacheKey {
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+ private final World world;
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+ private final double posX, posY, posZ;
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+ private final double minX, minY, minZ;
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+ private final double maxX, maxY, maxZ;
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+
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+ public CacheKey(Explosion explosion, AxisAlignedBB aabb) {
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+ this.world = explosion.world;
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+ this.posX = explosion.posX;
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+ this.posY = explosion.posY;
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+ this.posZ = explosion.posZ;
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+ this.minX = aabb.minX;
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+ this.minY = aabb.minY;
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+ this.minZ = aabb.minZ;
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+ this.maxX = aabb.maxX;
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+ this.maxY = aabb.maxY;
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+ this.maxZ = aabb.maxZ;
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+ }
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+
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+ @Override
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+ public boolean equals(Object o) {
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+ if (this == o) return true;
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+ if (o == null || getClass() != o.getClass()) return false;
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+
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+ CacheKey cacheKey = (CacheKey) o;
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+
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+ if (Double.compare(cacheKey.posX, posX) != 0) return false;
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+ if (Double.compare(cacheKey.posY, posY) != 0) return false;
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+ if (Double.compare(cacheKey.posZ, posZ) != 0) return false;
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+ if (Double.compare(cacheKey.minX, minX) != 0) return false;
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+ if (Double.compare(cacheKey.minY, minY) != 0) return false;
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+ if (Double.compare(cacheKey.minZ, minZ) != 0) return false;
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+ if (Double.compare(cacheKey.maxX, maxX) != 0) return false;
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+ if (Double.compare(cacheKey.maxY, maxY) != 0) return false;
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+ if (Double.compare(cacheKey.maxZ, maxZ) != 0) return false;
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+ return world.equals(cacheKey.world);
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+ }
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+
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+ @Override
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+ public int hashCode() {
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+ int result;
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+ long temp;
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+ result = world.hashCode();
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+ temp = Double.doubleToLongBits(posX);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(posY);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(posZ);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(minX);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(minY);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(minZ);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(maxX);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(maxY);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ temp = Double.doubleToLongBits(maxZ);
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+ result = 31 * result + (int) (temp ^ (temp >>> 32));
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+ return result;
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+ }
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+ }
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+ // Paper end
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}
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 00f1c36e9..f488c37f7 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -1055,6 +1055,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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worldserver.getTracker().updatePlayers();
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this.methodProfiler.exit();
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this.methodProfiler.exit();
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+ worldserver.explosionDensityCache.clear(); // Paper - Optimize explosions
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}
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}
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index bf05c47a1..ac602abc0 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -22,6 +22,7 @@ import org.apache.logging.log4j.Logger;
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// CraftBukkit start
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import com.google.common.collect.Maps;
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import java.util.ArrayList;
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+import java.util.HashMap; // Paper
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import java.util.Map;
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import org.bukkit.Bukkit;
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import org.bukkit.block.BlockState;
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@@ -140,6 +141,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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private org.spigotmc.TickLimiter entityLimiter;
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private org.spigotmc.TickLimiter tileLimiter;
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private int tileTickPosition;
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+ public final Map<Explosion.CacheKey, Float> explosionDensityCache = new HashMap<>(); // Paper - Optimize explosions
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public CraftWorld getWorld() {
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return this.world;
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--
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2.20.1
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