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Paper/Spigot-Server-Patches/0032-Optimize-explosions.patch
Shane Freeder 0faaa7da92 Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear 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:
19b7b7bd #561: Add clear weather World API
5929c808 #552: Add the ability to retrieve hit, step, fall, and other sounds from blocks.

CraftBukkit Changes:
e1ebdd92 #771: Add clear weather World API
424598d2 #752: Add the ability to retrieve hit, step, fall, and other sounds from blocks.
2020-11-25 23:45:25 +00:00

149 Zeilen
6.8 KiB
Diff

From 0000000000000000000000000000000000000000 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 88f5a415770da5dfcf7af95045f547e0761adc8b..41d03030741f2bc5dd904957be546de82be61a47 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -151,4 +151,10 @@ 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 afe61a1ddc75f155836411b6749198f71ed09919..ac39b02ec5f02f6f2db9f293513686d2d29d4036 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -173,7 +173,7 @@ public class Explosion {
d8 /= d11;
d9 /= d11;
d10 /= d11;
- double d12 = (double) a(vec3d, entity);
+ double d12 = this.getBlockDensity(vec3d, entity); // Paper - Optimize explosions
double d13 = (1.0D - d7) * d12;
// CraftBukkit start
@@ -392,4 +392,84 @@ public class Explosion {
private Effect() {}
}
+ // Paper start - Optimize explosions
+ private float getBlockDensity(Vec3D vec3d, Entity entity) {
+ if (!this.world.paperConfig.optimizeExplosions) {
+ return a(vec3d, entity);
+ }
+ CacheKey key = new CacheKey(this, entity.getBoundingBox());
+ Float blockDensity = this.world.explosionDensityCache.get(key);
+ if (blockDensity == null) {
+ blockDensity = a(vec3d, entity);
+ 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.minX;
+ this.minY = aabb.minY;
+ this.minZ = aabb.minZ;
+ this.maxX = aabb.maxX;
+ this.maxY = aabb.maxY;
+ this.maxZ = aabb.maxZ;
+ }
+
+ @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 775306d7e59ff135004e54d2d055bd05edba7e61..4d3cb70f1567b042e1605b30637706560bd883d9 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1207,6 +1207,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
this.methodProfiler.exit();
this.methodProfiler.exit();
+ worldserver.explosionDensityCache.clear(); // Paper - Optimize explosions
}
this.methodProfiler.exitEnter("connection");
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index fb26ec91ecdeaa94a6247c064b7c6191a43927eb..d8ff91fea7d00f035bac0fa7378dcf675a719857 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -84,6 +84,7 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
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;