diff options
Diffstat (limited to 'patches/unapplied/server/1034-Actually-optimise-explosions.patch')
| -rw-r--r-- | patches/unapplied/server/1034-Actually-optimise-explosions.patch | 521 |
1 files changed, 0 insertions, 521 deletions
diff --git a/patches/unapplied/server/1034-Actually-optimise-explosions.patch b/patches/unapplied/server/1034-Actually-optimise-explosions.patch deleted file mode 100644 index 065129443d..0000000000 --- a/patches/unapplied/server/1034-Actually-optimise-explosions.patch +++ /dev/null @@ -1,521 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Spottedleaf <[email protected]> -Date: Tue, 12 Sep 2023 06:50:16 -0700 -Subject: [PATCH] Actually optimise explosions - -The vast majority of blocks an explosion of power ~4 tries -to destroy are duplicates. The core of the block destroying -part of this patch is to cache the block state, resistance, and -whether it should explode - as those will not change. - -The other part of this patch is to optimise the visibility -percentage calculation. The new visibility calculation takes -advantage of the block caching already done by the explosion logic. -It continues to update the cache as the visibility calculation -uses many rays which can overlap significantly. - -Effectively, the patch uses a lot of caching to eliminate -redundant operations. - -Performance benchmarking explosions is challenging, as it varies -depending on the power, the number of nearby entities, and the -nearby terrain. This means that no benchmark can cover all the cases. -I decided to test a giant block of TNT, as that's where the optimisations -would be needed the most. - -I tested using a 50x10x50 block of TNT above ground -and determined the following: - -Vanilla time per explosion: 2.27ms -Lithium time per explosion: 1.07ms -This patch time per explosion: 0.45ms - -The results indicate that this logic is 5 times faster than Vanilla -and 2.3 times faster than Lithium. - -diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java -index bff83fe413c7baef4ba56a3270ea4463a58c792f..7aa9ddb1d61ffb7da3f867e5a5bd04e3432b5621 100644 ---- a/src/main/java/net/minecraft/world/level/Explosion.java -+++ b/src/main/java/net/minecraft/world/level/Explosion.java -@@ -113,6 +113,271 @@ public class Explosion { - this.yield = this.blockInteraction == Explosion.BlockInteraction.DESTROY_WITH_DECAY ? 1.0F / this.radius : 1.0F; // CraftBukkit - } - -+ // Paper start - optimise collisions -+ private static final double[] CACHED_RAYS; -+ static { -+ final it.unimi.dsi.fastutil.doubles.DoubleArrayList rayCoords = new it.unimi.dsi.fastutil.doubles.DoubleArrayList(); -+ -+ for (int x = 0; x <= 15; ++x) { -+ for (int y = 0; y <= 15; ++y) { -+ for (int z = 0; z <= 15; ++z) { -+ if ((x == 0 || x == 15) || (y == 0 || y == 15) || (z == 0 || z == 15)) { -+ double xDir = (double)((float)x / 15.0F * 2.0F - 1.0F); -+ double yDir = (double)((float)y / 15.0F * 2.0F - 1.0F); -+ double zDir = (double)((float)z / 15.0F * 2.0F - 1.0F); -+ -+ double mag = Math.sqrt( -+ xDir * xDir + yDir * yDir + zDir * zDir -+ ); -+ -+ rayCoords.add((xDir / mag) * (double)0.3F); -+ rayCoords.add((yDir / mag) * (double)0.3F); -+ rayCoords.add((zDir / mag) * (double)0.3F); -+ } -+ } -+ } -+ } -+ -+ CACHED_RAYS = rayCoords.toDoubleArray(); -+ } -+ -+ private static final int CHUNK_CACHE_SHIFT = 2; -+ private static final int CHUNK_CACHE_MASK = (1 << CHUNK_CACHE_SHIFT) - 1; -+ private static final int CHUNK_CACHE_WIDTH = 1 << CHUNK_CACHE_SHIFT; -+ -+ private static final int BLOCK_EXPLOSION_CACHE_SHIFT = 3; -+ private static final int BLOCK_EXPLOSION_CACHE_MASK = (1 << BLOCK_EXPLOSION_CACHE_SHIFT) - 1; -+ private static final int BLOCK_EXPLOSION_CACHE_WIDTH = 1 << BLOCK_EXPLOSION_CACHE_SHIFT; -+ -+ // resistance = (res + 0.3F) * 0.3F; -+ // so for resistance = 0, we need res = -0.3F -+ private static final Float ZERO_RESISTANCE = Float.valueOf(-0.3f); -+ private it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap<ExplosionBlockCache> blockCache = null; -+ -+ public static final class ExplosionBlockCache { -+ -+ public final long key; -+ public final BlockPos immutablePos; -+ public final BlockState blockState; -+ public final FluidState fluidState; -+ public final float resistance; -+ public final boolean outOfWorld; -+ public Boolean shouldExplode; // null -> not called yet -+ public net.minecraft.world.phys.shapes.VoxelShape cachedCollisionShape; -+ -+ public ExplosionBlockCache(long key, BlockPos immutablePos, BlockState blockState, FluidState fluidState, float resistance, -+ boolean outOfWorld) { -+ this.key = key; -+ this.immutablePos = immutablePos; -+ this.blockState = blockState; -+ this.fluidState = fluidState; -+ this.resistance = resistance; -+ this.outOfWorld = outOfWorld; -+ } -+ } -+ -+ private long[] chunkPosCache = null; -+ private net.minecraft.world.level.chunk.LevelChunk[] chunkCache = null; -+ -+ private ExplosionBlockCache getOrCacheExplosionBlock(final int x, final int y, final int z, -+ final long key, final boolean calculateResistance) { -+ ExplosionBlockCache ret = this.blockCache.get(key); -+ if (ret != null) { -+ return ret; -+ } -+ -+ BlockPos pos = new BlockPos(x, y, z); -+ -+ if (!this.level.isInWorldBounds(pos)) { -+ ret = new ExplosionBlockCache(key, pos, null, null, 0.0f, true); -+ } else { -+ net.minecraft.world.level.chunk.LevelChunk chunk; -+ long chunkKey = io.papermc.paper.util.CoordinateUtils.getChunkKey(x >> 4, z >> 4); -+ int chunkCacheKey = ((x >> 4) & CHUNK_CACHE_MASK) | (((z >> 4) << CHUNK_CACHE_SHIFT) & (CHUNK_CACHE_MASK << CHUNK_CACHE_SHIFT)); -+ if (this.chunkPosCache[chunkCacheKey] == chunkKey) { -+ chunk = this.chunkCache[chunkCacheKey]; -+ } else { -+ this.chunkPosCache[chunkCacheKey] = chunkKey; -+ this.chunkCache[chunkCacheKey] = chunk = this.level.getChunk(x >> 4, z >> 4); -+ } -+ -+ BlockState blockState = chunk.getBlockStateFinal(x, y, z); -+ FluidState fluidState = blockState.getFluidState(); -+ -+ Optional<Float> resistance = !calculateResistance ? Optional.empty() : this.damageCalculator.getBlockExplosionResistance((Explosion)(Object)this, this.level, pos, blockState, fluidState); -+ -+ ret = new ExplosionBlockCache( -+ key, pos, blockState, fluidState, -+ (resistance.orElse(ZERO_RESISTANCE).floatValue() + 0.3f) * 0.3f, -+ false -+ ); -+ } -+ -+ this.blockCache.put(key, ret); -+ -+ return ret; -+ } -+ -+ private boolean clipsAnything(final Vec3 from, final Vec3 to, -+ final io.papermc.paper.util.CollisionUtil.LazyEntityCollisionContext context, -+ final ExplosionBlockCache[] blockCache, -+ final BlockPos.MutableBlockPos currPos) { -+ // assume that context.delegated = false -+ final double adjX = io.papermc.paper.util.CollisionUtil.COLLISION_EPSILON * (from.x - to.x); -+ final double adjY = io.papermc.paper.util.CollisionUtil.COLLISION_EPSILON * (from.y - to.y); -+ final double adjZ = io.papermc.paper.util.CollisionUtil.COLLISION_EPSILON * (from.z - to.z); -+ -+ if (adjX == 0.0 && adjY == 0.0 && adjZ == 0.0) { -+ return false; -+ } -+ -+ final double toXAdj = to.x - adjX; -+ final double toYAdj = to.y - adjY; -+ final double toZAdj = to.z - adjZ; -+ final double fromXAdj = from.x + adjX; -+ final double fromYAdj = from.y + adjY; -+ final double fromZAdj = from.z + adjZ; -+ -+ int currX = Mth.floor(fromXAdj); -+ int currY = Mth.floor(fromYAdj); -+ int currZ = Mth.floor(fromZAdj); -+ -+ final double diffX = toXAdj - fromXAdj; -+ final double diffY = toYAdj - fromYAdj; -+ final double diffZ = toZAdj - fromZAdj; -+ -+ final double dxDouble = Math.signum(diffX); -+ final double dyDouble = Math.signum(diffY); -+ final double dzDouble = Math.signum(diffZ); -+ -+ final int dx = (int)dxDouble; -+ final int dy = (int)dyDouble; -+ final int dz = (int)dzDouble; -+ -+ final double normalizedDiffX = diffX == 0.0 ? Double.MAX_VALUE : dxDouble / diffX; -+ final double normalizedDiffY = diffY == 0.0 ? Double.MAX_VALUE : dyDouble / diffY; -+ final double normalizedDiffZ = diffZ == 0.0 ? Double.MAX_VALUE : dzDouble / diffZ; -+ -+ double normalizedCurrX = normalizedDiffX * (diffX > 0.0 ? (1.0 - Mth.frac(fromXAdj)) : Mth.frac(fromXAdj)); -+ double normalizedCurrY = normalizedDiffY * (diffY > 0.0 ? (1.0 - Mth.frac(fromYAdj)) : Mth.frac(fromYAdj)); -+ double normalizedCurrZ = normalizedDiffZ * (diffZ > 0.0 ? (1.0 - Mth.frac(fromZAdj)) : Mth.frac(fromZAdj)); -+ -+ for (;;) { -+ currPos.set(currX, currY, currZ); -+ -+ // ClipContext.Block.COLLIDER -> BlockBehaviour.BlockStateBase::getCollisionShape -+ // ClipContext.Fluid.NONE -> ignore fluids -+ -+ // read block from cache -+ final long key = BlockPos.asLong(currX, currY, currZ); -+ -+ final int cacheKey = -+ (currX & BLOCK_EXPLOSION_CACHE_MASK) | -+ (currY & BLOCK_EXPLOSION_CACHE_MASK) << (BLOCK_EXPLOSION_CACHE_SHIFT) | -+ (currZ & BLOCK_EXPLOSION_CACHE_MASK) << (BLOCK_EXPLOSION_CACHE_SHIFT + BLOCK_EXPLOSION_CACHE_SHIFT); -+ ExplosionBlockCache cachedBlock = blockCache[cacheKey]; -+ if (cachedBlock == null || cachedBlock.key != key) { -+ blockCache[cacheKey] = cachedBlock = this.getOrCacheExplosionBlock(currX, currY, currZ, key, false); -+ } -+ -+ final BlockState blockState = cachedBlock.blockState; -+ if (blockState != null && !blockState.emptyCollisionShape()) { -+ net.minecraft.world.phys.shapes.VoxelShape collision = cachedBlock.cachedCollisionShape; -+ if (collision == null) { -+ collision = blockState.getConstantCollisionShape(); -+ if (collision == null) { -+ collision = blockState.getCollisionShape(this.level, currPos, context); -+ if (!context.isDelegated()) { -+ // if it was not delegated during this call, assume that for any future ones it will not be delegated -+ // again, and cache the result -+ cachedBlock.cachedCollisionShape = collision; -+ } -+ } else { -+ cachedBlock.cachedCollisionShape = collision; -+ } -+ } -+ -+ if (!collision.isEmpty() && collision.clip(from, to, currPos) != null) { -+ return true; -+ } -+ } -+ -+ if (normalizedCurrX > 1.0 && normalizedCurrY > 1.0 && normalizedCurrZ > 1.0) { -+ return false; -+ } -+ -+ // inc the smallest normalized coordinate -+ -+ if (normalizedCurrX < normalizedCurrY) { -+ if (normalizedCurrX < normalizedCurrZ) { -+ currX += dx; -+ normalizedCurrX += normalizedDiffX; -+ } else { -+ // x < y && x >= z <--> z < y && z <= x -+ currZ += dz; -+ normalizedCurrZ += normalizedDiffZ; -+ } -+ } else if (normalizedCurrY < normalizedCurrZ) { -+ // y <= x && y < z -+ currY += dy; -+ normalizedCurrY += normalizedDiffY; -+ } else { -+ // y <= x && z <= y <--> z <= y && z <= x -+ currZ += dz; -+ normalizedCurrZ += normalizedDiffZ; -+ } -+ } -+ } -+ -+ private float getSeenFraction(final Vec3 source, final Entity target, -+ final ExplosionBlockCache[] blockCache, -+ final BlockPos.MutableBlockPos blockPos) { -+ final AABB boundingBox = target.getBoundingBox(); -+ final double diffX = boundingBox.maxX - boundingBox.minX; -+ final double diffY = boundingBox.maxY - boundingBox.minY; -+ final double diffZ = boundingBox.maxZ - boundingBox.minZ; -+ -+ final double incX = 1.0 / (diffX * 2.0 + 1.0); -+ final double incY = 1.0 / (diffY * 2.0 + 1.0); -+ final double incZ = 1.0 / (diffZ * 2.0 + 1.0); -+ -+ if (incX < 0.0 || incY < 0.0 || incZ < 0.0) { -+ return 0.0f; -+ } -+ -+ final double offX = (1.0 - Math.floor(1.0 / incX) * incX) * 0.5 + boundingBox.minX; -+ final double offY = boundingBox.minY; -+ final double offZ = (1.0 - Math.floor(1.0 / incZ) * incZ) * 0.5 + boundingBox.minZ; -+ -+ final io.papermc.paper.util.CollisionUtil.LazyEntityCollisionContext context = new io.papermc.paper.util.CollisionUtil.LazyEntityCollisionContext(target); -+ -+ int totalRays = 0; -+ int missedRays = 0; -+ -+ for (double dx = 0.0; dx <= 1.0; dx += incX) { -+ final double fromX = Math.fma(dx, diffX, offX); -+ for (double dy = 0.0; dy <= 1.0; dy += incY) { -+ final double fromY = Math.fma(dy, diffY, offY); -+ for (double dz = 0.0; dz <= 1.0; dz += incZ) { -+ ++totalRays; -+ -+ final Vec3 from = new Vec3( -+ fromX, -+ fromY, -+ Math.fma(dz, diffZ, offZ) -+ ); -+ -+ if (!this.clipsAnything(from, source, context, blockCache, blockPos)) { -+ ++missedRays; -+ } -+ } -+ } -+ } -+ -+ return (float)missedRays / (float)totalRays; -+ } -+ // Paper end - optimise collisions -+ - private ExplosionDamageCalculator makeDamageCalculator(@Nullable Entity entity) { - return (ExplosionDamageCalculator) (entity == null ? Explosion.EXPLOSION_DAMAGE_CALCULATOR : new EntityBasedExplosionDamageCalculator(entity)); - } -@@ -173,40 +438,88 @@ public class Explosion { - int i; - int j; - -- for (int k = 0; k < 16; ++k) { -- for (i = 0; i < 16; ++i) { -- for (j = 0; j < 16; ++j) { -- if (k == 0 || k == 15 || i == 0 || i == 15 || j == 0 || j == 15) { -- double d0 = (double) ((float) k / 15.0F * 2.0F - 1.0F); -- double d1 = (double) ((float) i / 15.0F * 2.0F - 1.0F); -- double d2 = (double) ((float) j / 15.0F * 2.0F - 1.0F); -- double d3 = Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2); -- -- d0 /= d3; -- d1 /= d3; -- d2 /= d3; -+ // Paper start - optimise explosions -+ this.blockCache = new it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap<>(); -+ -+ this.chunkPosCache = new long[CHUNK_CACHE_WIDTH * CHUNK_CACHE_WIDTH]; -+ java.util.Arrays.fill(this.chunkPosCache, ChunkPos.INVALID_CHUNK_POS); -+ -+ this.chunkCache = new net.minecraft.world.level.chunk.LevelChunk[CHUNK_CACHE_WIDTH * CHUNK_CACHE_WIDTH]; -+ -+ final ExplosionBlockCache[] blockCache = new ExplosionBlockCache[BLOCK_EXPLOSION_CACHE_WIDTH * BLOCK_EXPLOSION_CACHE_WIDTH * BLOCK_EXPLOSION_CACHE_WIDTH]; -+ // use initial cache value that is most likely to be used: the source position -+ final ExplosionBlockCache initialCache; -+ { -+ final int blockX = Mth.floor(this.x); -+ final int blockY = Mth.floor(this.y); -+ final int blockZ = Mth.floor(this.z); -+ -+ final long key = BlockPos.asLong(blockX, blockY, blockZ); -+ -+ initialCache = this.getOrCacheExplosionBlock(blockX, blockY, blockZ, key, true); -+ } -+ // 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 -+ // calculations in one go -+ // additional aggressive caching of block retrieval is very significant, as at low power (i.e tnt) most -+ // block retrievals are not unique -+ for (int ray = 0, len = CACHED_RAYS.length; ray < len;) { -+ { -+ { -+ { -+ ExplosionBlockCache cachedBlock = initialCache; -+ -+ double d0 = CACHED_RAYS[ray]; -+ double d1 = CACHED_RAYS[ray + 1]; -+ double d2 = CACHED_RAYS[ray + 2]; -+ ray += 3; -+ // Paper end - optimise explosions - float f = this.radius * (0.7F + this.level.random.nextFloat() * 0.6F); - double d4 = this.x; - double d5 = this.y; - double d6 = this.z; - - for (float f1 = 0.3F; f > 0.0F; f -= 0.22500001F) { -- BlockPos blockposition = BlockPos.containing(d4, d5, d6); -- BlockState iblockdata = this.level.getBlockState(blockposition); -- if (!iblockdata.isDestroyable()) continue; // Paper - Protect Bedrock and End Portal/Frames from being destroyed -- FluidState fluid = iblockdata.getFluidState(); // Paper - Perf: Optimize call to getFluid for explosions -+ // Paper start - optimise explosions -+ final int blockX = Mth.floor(d4); -+ final int blockY = Mth.floor(d5); -+ final int blockZ = Mth.floor(d6); -+ -+ final long key = BlockPos.asLong(blockX, blockY, blockZ); -+ -+ if (cachedBlock.key != key) { -+ final int cacheKey = -+ (blockX & BLOCK_EXPLOSION_CACHE_MASK) | -+ (blockY & BLOCK_EXPLOSION_CACHE_MASK) << (BLOCK_EXPLOSION_CACHE_SHIFT) | -+ (blockZ & BLOCK_EXPLOSION_CACHE_MASK) << (BLOCK_EXPLOSION_CACHE_SHIFT + BLOCK_EXPLOSION_CACHE_SHIFT); -+ cachedBlock = blockCache[cacheKey]; -+ if (cachedBlock == null || cachedBlock.key != key) { -+ blockCache[cacheKey] = cachedBlock = this.getOrCacheExplosionBlock(blockX, blockY, blockZ, key, true); -+ } -+ } - -- if (!this.level.isInWorldBounds(blockposition)) { -+ if (cachedBlock.outOfWorld) { - break; - } - -- Optional<Float> optional = this.damageCalculator.getBlockExplosionResistance(this, this.level, blockposition, iblockdata, fluid); -+ BlockPos blockposition = cachedBlock.immutablePos; -+ BlockState iblockdata = cachedBlock.blockState; -+ // Paper end - optimise explosions - -- if (optional.isPresent()) { -- f -= ((Float) optional.get() + 0.3F) * 0.3F; -- } -+ if (!iblockdata.isDestroyable()) continue; // Paper -+ // Paper - optimise explosions - -- if (f > 0.0F && this.damageCalculator.shouldBlockExplode(this, this.level, blockposition, iblockdata, f)) { -+ f -= cachedBlock.resistance; // Paper - optimise explosions -+ -+ if (f > 0.0F && cachedBlock.shouldExplode == null) { // Paper - optimise explosions -+ // Paper start - optimise explosions -+ // note: we expect shouldBlockExplode to be pure with respect to power, as Vanilla currently is. -+ // basically, it is unused, which allows us to cache the result -+ final boolean shouldExplode = this.damageCalculator.shouldBlockExplode(this, this.level, cachedBlock.immutablePos, cachedBlock.blockState, f); -+ cachedBlock.shouldExplode = shouldExplode ? Boolean.TRUE : Boolean.FALSE; -+ if (shouldExplode && (this.fire || !cachedBlock.blockState.isAir())) { -+ // Paper end - optimise explosions - set.add(blockposition); - // Paper start - prevent headless pistons from forming - if (!io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowHeadlessPistons && iblockdata.getBlock() == Blocks.MOVING_PISTON) { -@@ -217,11 +530,12 @@ public class Explosion { - } - } - // Paper end - prevent headless pistons from forming -+ } // Paper - optimise explosions - } - -- d4 += d0 * 0.30000001192092896D; -- d5 += d1 * 0.30000001192092896D; -- d6 += d2 * 0.30000001192092896D; -+ d4 += d0; // Paper - optimise explosions -+ d5 += d1; // Paper - optimise explosions -+ d6 += d2; // Paper - optimise explosions - } - } - } -@@ -241,6 +555,8 @@ public class Explosion { - Vec3 vec3d = new Vec3(this.x, this.y, this.z); - Iterator iterator = list.iterator(); - -+ final BlockPos.MutableBlockPos blockPos = new BlockPos.MutableBlockPos(); // Paper - optimise explosions -+ - while (iterator.hasNext()) { - Entity entity = (Entity) iterator.next(); - -@@ -276,11 +592,11 @@ public class Explosion { - for (EnderDragonPart entityComplexPart : ((EnderDragon) entity).subEntities) { - // Calculate damage separately for each EntityComplexPart - if (list.contains(entityComplexPart)) { -- entityComplexPart.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entity)); -+ entityComplexPart.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entityComplexPart, getSeenFraction(vec3d, entityComplexPart, blockCache, blockPos))); // Paper - actually optimise explosions and use the right entity to calculate the damage - } - } - } else { -- entity.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entity)); -+ entity.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entity, getSeenFraction(vec3d, entity, blockCache, blockPos))); // Paper - actually optimise explosions - } - - if (entity.lastDamageCancelled) { // SPIGOT-5339, SPIGOT-6252, SPIGOT-6777: Skip entity if damage event was cancelled -@@ -289,7 +605,7 @@ public class Explosion { - // CraftBukkit end - } - -- double d12 = (1.0D - d7) * this.getBlockDensity(vec3d, entity) * (double) this.damageCalculator.getKnockbackMultiplier(entity); // Paper - Optimize explosions -+ double d12 = (1.0D - d7) * this.getBlockDensity(vec3d, entity, blockCache, blockPos) * (double) this.damageCalculator.getKnockbackMultiplier(entity); // Paper - Optimize explosions - double d13; - - if (entity instanceof LivingEntity) { -@@ -328,6 +644,9 @@ public class Explosion { - } - } - -+ this.blockCache = null; // Paper - optimise explosions -+ this.chunkPosCache = null; // Paper - optimise explosions -+ this.chunkCache = null; // Paper - optimise explosions - } - - public void finalizeExplosion(boolean particles) { -@@ -547,14 +866,14 @@ public class Explosion { - private BlockInteraction() {} - } - // Paper start - Optimize explosions -- private float getBlockDensity(Vec3 vec3d, Entity entity) { -+ private float getBlockDensity(Vec3 vec3d, Entity entity, ExplosionBlockCache[] blockCache, BlockPos.MutableBlockPos blockPos) { // Paper - optimise explosions - if (!this.level.paperConfig().environment.optimizeExplosions) { -- return getSeenPercent(vec3d, entity); -+ return this.getSeenFraction(vec3d, entity, blockCache, blockPos); // Paper - optimise explosions - } - CacheKey key = new CacheKey(this, entity.getBoundingBox()); - Float blockDensity = this.level.explosionDensityCache.get(key); - if (blockDensity == null) { -- blockDensity = getSeenPercent(vec3d, entity); -+ blockDensity = this.getSeenFraction(vec3d, entity, blockCache, blockPos); // Paper - optimise explosions; - this.level.explosionDensityCache.put(key, blockDensity); - } - -diff --git a/src/main/java/net/minecraft/world/level/ExplosionDamageCalculator.java b/src/main/java/net/minecraft/world/level/ExplosionDamageCalculator.java -index 0ef9b402d129b072134688c06719a56328581158..1eb259b48bcab6172c15546744eea410c6a3e1fe 100644 ---- a/src/main/java/net/minecraft/world/level/ExplosionDamageCalculator.java -+++ b/src/main/java/net/minecraft/world/level/ExplosionDamageCalculator.java -@@ -26,11 +26,17 @@ public class ExplosionDamageCalculator { - return 1.0F; - } - -+ @io.papermc.paper.annotation.DoNotUse @Deprecated // Paper - public float getEntityDamageAmount(Explosion explosion, Entity entity) { -+ // Paper start - actually optimise explosions -+ return this.getEntityDamageAmount(explosion, entity, Explosion.getSeenPercent(explosion.center(), entity)); -+ } -+ public float getEntityDamageAmount(Explosion explosion, Entity entity, double seenPercent) { -+ // Paper end - actually optimise explosions - float f = explosion.radius() * 2.0F; - Vec3 vec3 = explosion.center(); - double d = Math.sqrt(entity.distanceToSqr(vec3)) / (double)f; -- double e = (1.0 - d) * (double)Explosion.getSeenPercent(vec3, entity); -+ double e = (1.0 - d) * seenPercent; // Paper - actually optimise explosions - return (float)((e * e + e) / 2.0 * 7.0 * (double)f + 1.0); - } - } |