From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Mon, 27 Apr 2020 00:04:16 -0700 Subject: [PATCH] Reduce allocation of Vec3D by entity tracker diff --git a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java index 05ac41e136da43284fb24a6b698ebd36318278fb..5ca3ad7b3d7606accd0a58b3c708fadb349608f7 100644 --- a/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java +++ b/src/main/java/net/minecraft/network/protocol/game/VecDeltaCodec.java @@ -5,7 +5,7 @@ import org.jetbrains.annotations.VisibleForTesting; public class VecDeltaCodec { private static final double TRUNCATION_STEPS = 4096.0D; - private Vec3 base = Vec3.ZERO; + public Vec3 base = Vec3.ZERO; // Paper @VisibleForTesting static long encode(double value) { diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index 3616f106b8bd5824700bfb67678599e6e1eca712..b312094bc88cd981fb424c244896c4c1d6454698 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -1877,9 +1877,13 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider public void updatePlayer(ServerPlayer player) { org.spigotmc.AsyncCatcher.catchOp("player tracker update"); // Spigot if (player != this.entity) { - Vec3 vec3d = player.position().subtract(this.entity.position()); + // Paper start - remove allocation of Vec3D here + // Vec3 vec3d = player.position().subtract(this.entity.position()); + double vec3d_dx = player.getX() - this.entity.getX(); + double vec3d_dz = player.getZ() - this.entity.getZ(); + // Paper end - remove allocation of Vec3D here double d0 = (double) Math.min(this.getEffectiveRange(), ChunkMap.this.viewDistance * 16); - double d1 = vec3d.x * vec3d.x + vec3d.z * vec3d.z; + double d1 = vec3d_dx * vec3d_dx + vec3d_dz * vec3d_dz; // Paper double d2 = d0 * d0; boolean flag = d1 <= d2 && this.entity.broadcastToPlayer(player); diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java index 5ec480397fb043717c63961651f7c62440e57201..3f3c7ced3a43e2b0eb451930c09188e3706a1bee 100644 --- a/src/main/java/net/minecraft/server/level/ServerEntity.java +++ b/src/main/java/net/minecraft/server/level/ServerEntity.java @@ -161,7 +161,13 @@ public class ServerEntity { i = Mth.floor(this.entity.getYRot() * 256.0F / 360.0F); j = Mth.floor(this.entity.getXRot() * 256.0F / 360.0F); Vec3 vec3d = this.entity.trackingPosition(); - boolean flag1 = this.positionCodec.delta(vec3d).lengthSqr() >= 7.62939453125E-6D; + // Paper start - reduce allocation of Vec3D here + Vec3 base = this.positionCodec.base; + double vec3d_dx = vec3d.x - base.x; + double vec3d_dy = vec3d.y - base.y; + double vec3d_dz = vec3d.z - base.z; + boolean flag1 = (vec3d_dx * vec3d_dx + vec3d_dy * vec3d_dy + vec3d_dz * vec3d_dz) >= 7.62939453125E-6D; + // Paper end - reduce allocation of Vec3D here Packet packet1 = null; boolean flag2 = flag1 || this.tickCount % 60 == 0; boolean flag3 = Math.abs(i - this.yRotp) >= 1 || Math.abs(j - this.xRotp) >= 1;