9
0
mirror of https://github.com/Samsuik/Sakura.git synced 2025-12-21 07:49:29 +00:00
Files
SakuraMC/sakura-server/minecraft-patches/features/0006-Optimise-paper-explosions.patch
2025-04-07 01:37:23 +01:00

196 lines
9.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samsuik <kfian294ma4@gmail.com>
Date: Fri, 19 Apr 2024 22:20:03 +0100
Subject: [PATCH] Optimise paper explosions
diff --git a/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java b/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
index ba20e87d2105ce53cdaf4049de2388d05fcd1b56..6e3a429bc165d8473ea50ee2ae1548270db599d1 100644
--- a/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
+++ b/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
@@ -297,6 +297,12 @@ public final class ChunkEntitySlices {
return true;
}
+ // Sakura start - optimise paper explosions; expose slice entity list
+ public Entity[] getSectionEntities(int sectionY) {
+ return this.allEntities.getSectionEntities(sectionY);
+ }
+ // Sakura end - optimise paper explosions; expose slice entity list
+
public void getHardCollidingEntities(final Entity except, final AABB box, final List<Entity> into, final Predicate<? super Entity> predicate) {
this.hardCollidingEntities.getEntities(except, box, into, predicate);
}
@@ -495,6 +501,17 @@ public final class ChunkEntitySlices {
}
}
+ // Sakura start - optimise paper explosions; expose slice entity list
+ public Entity[] getSectionEntities(int sectionY) {
+ final BasicEntityList<Entity> list = this.entitiesBySection[sectionY - this.slices.minSection];
+ if (list != null) {
+ return list.storage;
+ } else {
+ return new Entity[0];
+ }
+ }
+ // Sakura end - optimise paper explosions; expose slice entity list
+
public void getEntities(final Entity except, final AABB box, final List<Entity> into, final Predicate<? super Entity> predicate) {
if (this.count == 0) {
return;
diff --git a/net/minecraft/world/level/ServerExplosion.java b/net/minecraft/world/level/ServerExplosion.java
index 340d50be3cc94e47affddd4ad916e1c02e620636..5c029776df58976df6791f66618c97980fbfa4dc 100644
--- a/net/minecraft/world/level/ServerExplosion.java
+++ b/net/minecraft/world/level/ServerExplosion.java
@@ -86,7 +86,7 @@ public class ServerExplosion implements Explosion {
}
}
- CACHED_RAYS = rayCoords.toDoubleArray();
+ CACHED_RAYS = sortExplosionRays(rayCoords); // Sakura - optimise paper explosions
}
private static final int CHUNK_CACHE_SHIFT = 2;
@@ -304,6 +304,39 @@ public class ServerExplosion implements Explosion {
return (float)missedRays / (float)totalRays;
}
// Paper end - collisions optimisations
+ // Sakura start - optimise paper explosions
+ /*
+ * Sort the explosion rays to better utilise the chunk and block cache.
+ * x + Vanilla Sorted
+ * z @ z 8 5
+ * - x 6 7 6 4
+ * 4 @ 5 7 @ 3
+ * 2 3 8 2
+ * 1 1
+ */
+ private static double[] sortExplosionRays(it.unimi.dsi.fastutil.doubles.DoubleArrayList rayCoords) {
+ List<double[]> explosionRays = new ArrayList<>();
+
+ for (int i = 0; i < rayCoords.size(); i += 3) {
+ double[] ray = new double[3];
+ rayCoords.getElements(i, ray, 0, 3);
+ explosionRays.add(ray);
+ }
+
+ rayCoords.clear();
+ explosionRays.sort(java.util.Comparator.comparingDouble(vec -> {
+ double sign = Math.signum(vec[0]);
+ double dir = (sign - 1) / 2;
+ return sign + 8 + vec[2] * dir;
+ }));
+
+ double[] rays = new double[explosionRays.size() * 3];
+ for (int i = 0; i < explosionRays.size() * 3; i++) {
+ rays[i] = explosionRays.get(i / 3)[i % 3];
+ }
+ return rays;
+ }
+ // Sakura end - optimise paper explosions
public ServerExplosion(
ServerLevel level,
@@ -395,6 +428,12 @@ public class ServerExplosion implements Explosion {
initialCache = this.getOrCacheExplosionBlock(blockX, blockY, blockZ, key, true);
}
+ // Sakura start - optimise paper explosions
+ if (!this.interactsWithBlocks() || initialCache.resistance > (this.radius * 1.3f)) {
+ return ret;
+ }
+ // Sakura end - optimise paper explosions
+
// only ~1/3rd of the loop iterations in vanilla will result in a ray, as it is iterating the perimeter of
// a 16x16x16 cube
// we can cache the rays and their normals as well, so that we eliminate the excess iterations / checks and
@@ -473,16 +512,55 @@ public class ServerExplosion implements Explosion {
// Paper end - collision optimisations
}
- private void hurtEntities() {
- float f = this.radius * 2.0F;
+ // Sakura start - optimise paper explosions
+ protected final AABB getExplosionBounds(float f) {
int floor = Mth.floor(this.center.x - f - 1.0);
int floor1 = Mth.floor(this.center.x + f + 1.0);
int floor2 = Mth.floor(this.center.y - f - 1.0);
int floor3 = Mth.floor(this.center.y + f + 1.0);
int floor4 = Mth.floor(this.center.z - f - 1.0);
int floor5 = Mth.floor(this.center.z + f + 1.0);
- List <Entity> list = this.level.getEntities(this.excludeSourceFromDamage ? this.source : null, new AABB(floor, floor2, floor4, floor1, floor3, floor5), entity -> entity.isAlive() && !entity.isSpectator()); // Paper - Fix lag from explosions processing dead entities, Allow explosions to damage source
- for (Entity entity : list) { // Paper - used in loop
+ return new AABB(floor, floor2, floor4, floor1, floor3, floor5);
+ }
+
+ private void hurtEntities() {
+ float f = this.radius * 2.0F;
+
+ int minSection = ca.spottedleaf.moonrise.common.util.WorldUtil.getMinSection(this.level);
+ int maxSection = ca.spottedleaf.moonrise.common.util.WorldUtil.getMaxSection(this.level);
+
+ int minChunkX = Mth.floor(this.center.x - f) >> 4;
+ int maxChunkX = Mth.floor(this.center.x + f) >> 4;
+ int minChunkY = Mth.clamp(Mth.floor(this.center.y - f) >> 4, minSection, maxSection);
+ int maxChunkY = Mth.clamp(Mth.floor(this.center.y + f) >> 4, minSection, maxSection);
+ int minChunkZ = Mth.floor(this.center.z - f) >> 4;
+ int maxChunkZ = Mth.floor(this.center.z + f) >> 4;
+
+ ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup entityLookup = this.level.moonrise$getEntityLookup();
+ for (int chunkX = minChunkX; chunkX <= maxChunkX; ++chunkX) {
+ for (int chunkZ = minChunkZ; chunkZ <= maxChunkZ; ++chunkZ) {
+ ca.spottedleaf.moonrise.patches.chunk_system.level.entity.ChunkEntitySlices chunk = entityLookup.getChunk(chunkX, chunkZ);
+ if (chunk == null) continue; // empty slice
+
+ for (int chunkY = minChunkY; chunkY <= maxChunkY; ++chunkY) {
+ this.impactEntities(f, chunk.getSectionEntities(chunkY));
+ }
+ }
+ }
+ }
+
+ protected final void impactEntities(float f, Entity[] entities) {
+ for (int i = 0; i < entities.length; i++) {
+ Entity entity = entities[i];
+ if (entity == null) break; // end of entity section
+ this.impactEntity(f, entity);
+ if (entity != entities[i]) i--; // entities can be removed mid-explosion
+ }
+ }
+
+ protected final void impactEntity(float f, Entity entity) {
+ if (entity.isAlive() && !entity.isSpectator() && (!this.excludeSourceFromDamage || entity != this.source)) { // Paper - Fix lag from explosions processing dead entities, Allow explosions to damage source
+ // Sakura end - optimise paper explosions
if (!entity.ignoreExplosion(this)) {
double d = Math.sqrt(entity.distanceToSqr(this.center)) / f;
if (d <= 1.0) {
@@ -507,15 +585,16 @@ public class ServerExplosion implements Explosion {
// - Damaging EnderDragon does nothing
// - EnderDragon hitbox always covers the other parts and is therefore always present
if (entity instanceof EnderDragonPart) {
- continue;
+ return; // Sakura - optimise paper explosions
}
entity.lastDamageCancelled = false;
if (entity instanceof EnderDragon) {
+ final AABB bounds = this.getExplosionBounds(f); // Sakura - optimise paper explosions
for (EnderDragonPart dragonPart : ((EnderDragon) entity).getSubEntities()) {
// Calculate damage separately for each EntityComplexPart
- if (list.contains(dragonPart)) {
+ if (dragonPart.getBoundingBox().intersects(bounds)) { // Sakura - optimise paper explosions
dragonPart.hurtServer(this.level, this.damageSource, this.damageCalculator.getEntityDamageAmount(this, dragonPart, f1));
}
}
@@ -524,7 +603,7 @@ public class ServerExplosion implements Explosion {
}
if (entity.lastDamageCancelled) { // SPIGOT-5339, SPIGOT-6252, SPIGOT-6777: Skip entity if damage event was cancelled
- continue;
+ return; // Sakura - optimise paper explosions
}
// CraftBukkit end
}