3
0
Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-12-15 11:00:06 +01:00
Paper/Spigot-Server-Patches/0031-Optimize-explosions.patch
Aikar d617f95f05
[Auto] Updated Upstream (Bukkit/CraftBukkit)
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:
310dc809 Add ServerLoadEvent

CraftBukkit Changes:
19d654bd Add ServerLoadEvent
2018-09-07 23:49:37 -04:00

161 Zeilen
6.9 KiB
Diff

From 52f7d263cd8e5c77095afbcec33f0d0c7da006f6 Mon Sep 17 00:00:00 2001
From: Byteflux <byte@byteflux.net>
Date: Wed, 2 Mar 2016 11:59:48 -0600
Subject: [PATCH] Optimize explosions
The process of determining an entity's exposure from explosions can be
expensive when there are hundreds or more entities in range.
This patch adds a per-tick cache that is used for storing and retrieving
an entity's exposure during an explosion.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index aa2f5414b0..bd1ac77aef 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -142,4 +142,10 @@ public class PaperWorldConfig {
disableEndCredits = getBoolean("game-mechanics.disable-end-credits", false);
log("End credits disabled: " + disableEndCredits);
}
+
+ public boolean optimizeExplosions;
+ private void optimizeExplosions() {
+ optimizeExplosions = getBoolean("optimize-explosions", false);
+ log("Optimize explosions: " + optimizeExplosions);
+ }
}
diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
index 2620c4c2bd..a31e07b903 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -137,7 +137,7 @@ public class Explosion {
d8 /= d11;
d9 /= d11;
d10 /= d11;
- double d12 = (double) this.world.a(vec3d, entity.getBoundingBox());
+ double d12 = this.getBlockDensity(vec3d, entity.getBoundingBox()); // Paper - Optimize explosions
double d13 = (1.0D - d7) * d12;
// CraftBukkit start
@@ -313,4 +313,85 @@ public class Explosion {
public List<BlockPosition> getBlocks() {
return this.blocks;
}
+
+ // Paper start - Optimize explosions
+ private float getBlockDensity(Vec3D vec3d, AxisAlignedBB aabb) {
+ if (!this.world.paperConfig.optimizeExplosions) {
+ return this.world.a(vec3d, aabb);
+ }
+ CacheKey key = new CacheKey(this, aabb);
+ Float blockDensity = this.world.explosionDensityCache.get(key);
+ if (blockDensity == null) {
+ blockDensity = this.world.a(vec3d, aabb);
+ this.world.explosionDensityCache.put(key, blockDensity);
+ }
+
+ return blockDensity;
+ }
+
+ static class CacheKey {
+ private final World world;
+ private final double posX, posY, posZ;
+ private final double minX, minY, minZ;
+ private final double maxX, maxY, maxZ;
+
+ public CacheKey(Explosion explosion, AxisAlignedBB aabb) {
+ this.world = explosion.world;
+ this.posX = explosion.posX;
+ this.posY = explosion.posY;
+ this.posZ = explosion.posZ;
+ this.minX = aabb.a;
+ this.minY = aabb.b;
+ this.minZ = aabb.c;
+ this.maxX = aabb.d;
+ this.maxY = aabb.e;
+ this.maxZ = aabb.f;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) return true;
+ if (o == null || getClass() != o.getClass()) return false;
+
+ CacheKey cacheKey = (CacheKey) o;
+
+ if (Double.compare(cacheKey.posX, posX) != 0) return false;
+ if (Double.compare(cacheKey.posY, posY) != 0) return false;
+ if (Double.compare(cacheKey.posZ, posZ) != 0) return false;
+ if (Double.compare(cacheKey.minX, minX) != 0) return false;
+ if (Double.compare(cacheKey.minY, minY) != 0) return false;
+ if (Double.compare(cacheKey.minZ, minZ) != 0) return false;
+ if (Double.compare(cacheKey.maxX, maxX) != 0) return false;
+ if (Double.compare(cacheKey.maxY, maxY) != 0) return false;
+ if (Double.compare(cacheKey.maxZ, maxZ) != 0) return false;
+ return world.equals(cacheKey.world);
+ }
+
+ @Override
+ public int hashCode() {
+ int result;
+ long temp;
+ result = world.hashCode();
+ temp = Double.doubleToLongBits(posX);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(posY);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(posZ);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(minX);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(minY);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(minZ);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(maxX);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(maxY);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(maxZ);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ return result;
+ }
+ }
+ // Paper end
}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 30541dfa5a..bbd476bb0e 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1055,6 +1055,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
worldserver.getTracker().updatePlayers();
this.methodProfiler.e();
this.methodProfiler.e();
+ worldserver.explosionDensityCache.clear(); // Paper - Optimize explosions
}
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 0fe8a97f24..c8b9c10f12 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -24,6 +24,7 @@ import org.apache.logging.log4j.Logger;
// CraftBukkit start
import com.google.common.collect.Maps;
+import java.util.HashMap; // Paper
import java.util.Map;
import org.bukkit.Bukkit;
import org.bukkit.block.BlockState;
@@ -145,6 +146,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
private org.spigotmc.TickLimiter entityLimiter;
private org.spigotmc.TickLimiter tileLimiter;
private int tileTickPosition;
+ public final Map<Explosion.CacheKey, Float> explosionDensityCache = new HashMap<>(); // Paper - Optimize explosions
public CraftWorld getWorld() {
return this.world;
--
2.18.0