134 Zeilen
6.2 KiB
Diff
134 Zeilen
6.2 KiB
Diff
From 0000000000000000000000000000000000000000 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/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index fcb2d06f088a938b5bb76e6b42581d8f292d2eaf..231fba80a25601cdfba4f6f44ac7c2888e505ed2 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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@@ -1554,6 +1554,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.profiler.pop();
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this.profiler.pop();
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+ worldserver.explosionDensityCache.clear(); // Paper - Optimize explosions
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}
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this.profiler.popPush("connection");
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diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
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index cd6d831d8519b406571e6f626053afb662799ad9..8a4c086d7ac4bf59f39ab37e583b0e8d6dba6bf4 100644
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--- a/src/main/java/net/minecraft/world/level/Explosion.java
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+++ b/src/main/java/net/minecraft/world/level/Explosion.java
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@@ -278,7 +278,7 @@ public class Explosion {
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// CraftBukkit end
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}
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- double d12 = (1.0D - d7) * (double) Explosion.getSeenPercent(vec3d, entity) * (double) this.damageCalculator.getKnockbackMultiplier(entity);
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+ double d12 = (1.0D - d7) * this.getBlockDensity(vec3d, entity) * (double) this.damageCalculator.getKnockbackMultiplier(entity); // Paper - Optimize explosions
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double d13;
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if (entity instanceof LivingEntity) {
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@@ -529,4 +529,84 @@ public class Explosion {
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private BlockInteraction() {}
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}
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+ // Paper start - Optimize explosions
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+ private float getBlockDensity(Vec3 vec3d, Entity entity) {
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+ if (!this.level.paperConfig().environment.optimizeExplosions) {
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+ return getSeenPercent(vec3d, entity);
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+ }
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+ CacheKey key = new CacheKey(this, entity.getBoundingBox());
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+ Float blockDensity = this.level.explosionDensityCache.get(key);
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+ if (blockDensity == null) {
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+ blockDensity = getSeenPercent(vec3d, entity);
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+ this.level.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 Level 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, AABB aabb) {
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+ this.world = explosion.level;
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+ this.posX = explosion.x;
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+ this.posY = explosion.y;
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+ this.posZ = explosion.z;
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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/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 472df81e4aef21e0cf2684a9e04d6ce18d6d6922..395744b57e0dcff2de5f2675c03c2e696123d386 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -167,6 +167,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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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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