From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dreeam <61569423+Dreeam-qwq@users.noreply.github.com>
Date: Mon, 11 Sep 2023 15:47:19 -0400
Subject: [PATCH] Reduce canSee work

Co-authored by: Martijn Muijsers <martijnmuijsers@live.nl>
Co-authored by: MachineBreaker <machinebreaker>

diff --git a/net/minecraft/world/level/Level.java b/net/minecraft/world/level/Level.java
index dd8c7afecd62edc2ab3933034bf469aea729be53..3bd42eb81eae3af9323021a5dc6edaa06dfcaead 100644
--- a/net/minecraft/world/level/Level.java
+++ b/net/minecraft/world/level/Level.java
@@ -988,17 +988,19 @@ public abstract class Level implements LevelAccessor, UUIDLookup<Entity>, AutoCl
         for (int i = 0, len = entities.size(); i < len; ++i) {
             Entity entity = entities.get(i);
 
-            if (checkCanSee && source instanceof net.minecraft.server.level.ServerPlayer && entity instanceof net.minecraft.server.level.ServerPlayer
-                && !((net.minecraft.server.level.ServerPlayer) source).getBukkitEntity().canSee(((net.minecraft.server.level.ServerPlayer) entity).getBukkitEntity())) {
-                continue;
-            }
-
+            // Leaf start - Reduce canSee work - move up
             // !entity1.isRemoved() && entity1.blocksBuilding && (entity == null || !entity1.isPassengerOfSameVehicle(entity))
             // elide the last check since vanilla calls with entity = null
             // only we care about the source for the canSee check
             if (entity.isRemoved() || !entity.blocksBuilding) {
                 continue;
             }
+            // Leaf end - Reduce canSee work - move up
+
+            if (checkCanSee && source instanceof net.minecraft.server.level.ServerPlayer && entity instanceof net.minecraft.server.level.ServerPlayer
+                && !((net.minecraft.server.level.ServerPlayer) source).getBukkitEntity().canSee(((net.minecraft.server.level.ServerPlayer) entity).getBukkitEntity())) {
+                continue;
+            }
 
             if (net.minecraft.world.phys.shapes.Shapes.joinIsNotEmpty(collisionShape, net.minecraft.world.phys.shapes.Shapes.create(entity.getBoundingBox()), net.minecraft.world.phys.shapes.BooleanOp.AND)) {
                 return false;