Leaf/leaf-server/minecraft-patches/features/0224-Remove-streams-on-PlayerDetector.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Taiyou06 <kaandindar21@gmail.com>
Date: Sat, 22 Mar 2025 12:51:28 +0100
Subject: [PATCH] Remove streams on PlayerDetector

Dreeam TODO: Merge to single loop

diff --git a/net/minecraft/world/level/block/entity/trialspawner/PlayerDetector.java b/net/minecraft/world/level/block/entity/trialspawner/PlayerDetector.java
index 774d4028f0be7c388abb47f8eb97011341f50f59..81d2dfdd8bd2a8b205e4b617911c277a366f0369 100644
--- a/net/minecraft/world/level/block/entity/trialspawner/PlayerDetector.java
+++ b/net/minecraft/world/level/block/entity/trialspawner/PlayerDetector.java
@@ -21,28 +21,45 @@ import net.minecraft.world.phys.Vec3;
 import net.minecraft.world.phys.shapes.CollisionContext;
 
 public interface PlayerDetector {
-    PlayerDetector NO_CREATIVE_PLAYERS = (level, entitySelector, pos, maxDistance, requireLineOfSight) -> entitySelector.getPlayers(
-            level, player -> player.blockPosition().closerThan(pos, maxDistance) && !player.isCreative() && !player.isSpectator()
-        )
-        .stream()
-        .filter(player -> !requireLineOfSight || inLineOfSight(level, pos.getCenter(), player.getEyePosition()))
-        .map(Entity::getUUID)
-        .toList();
-    PlayerDetector INCLUDING_CREATIVE_PLAYERS = (level, entitySelector, pos, maxDistance, requireLineOfSight) -> entitySelector.getPlayers(
-            level, player -> player.blockPosition().closerThan(pos, maxDistance) && !player.isSpectator()
-        )
-        .stream()
-        .filter(player -> !requireLineOfSight || inLineOfSight(level, pos.getCenter(), player.getEyePosition()))
-        .map(Entity::getUUID)
-        .toList();
+    // Leaf start - Remove streams on PlayerDetector
+    PlayerDetector NO_CREATIVE_PLAYERS = (level, entitySelector, pos, maxDistance, requireLineOfSight) -> {
+        List<? extends Player> players = entitySelector.getPlayers(
+                level, player -> player.blockPosition().closerThan(pos, maxDistance) && !player.isCreative() && !player.isSpectator()
+        );
+        List<UUID> result = new java.util.ArrayList<>();
+        for (Player player : players) {
+            if (!requireLineOfSight || inLineOfSight(level, pos.getCenter(), player.getEyePosition())) {
+                result.add(player.getUUID());
+            }
+        }
+        return result;
+    };
+
+    PlayerDetector INCLUDING_CREATIVE_PLAYERS = (level, entitySelector, pos, maxDistance, requireLineOfSight) -> {
+        List<? extends Player> players = entitySelector.getPlayers(
+                level, player -> player.blockPosition().closerThan(pos, maxDistance) && !player.isSpectator()
+        );
+        List<UUID> result = new java.util.ArrayList<>();
+        for (Player player : players) {
+            if (!requireLineOfSight || inLineOfSight(level, pos.getCenter(), player.getEyePosition())) {
+                result.add(player.getUUID());
+            }
+        }
+        return result;
+    };
+
     PlayerDetector SHEEP = (level, entitySelector, pos, maxDistance, requireLineOfSight) -> {
         AABB aabb = new AABB(pos).inflate(maxDistance);
-        return entitySelector.getEntities(level, EntityType.SHEEP, aabb, LivingEntity::isAlive)
-            .stream()
-            .filter(sheep -> !requireLineOfSight || inLineOfSight(level, pos.getCenter(), sheep.getEyePosition()))
-            .map(Entity::getUUID)
-            .toList();
+        List<? extends Entity> sheep = entitySelector.getEntities(level, EntityType.SHEEP, aabb, LivingEntity::isAlive);
+        List<UUID> result = new java.util.ArrayList<>();
+        for (Entity entity : sheep) {
+            if (!requireLineOfSight || inLineOfSight(level, pos.getCenter(), entity.getEyePosition())) {
+                result.add(entity.getUUID());
+            }
+        }
+        return result;
     };
+    // Leaf end - Remove streams on PlayerDetector
 
     List<UUID> detect(ServerLevel level, PlayerDetector.EntitySelector entitySelector, BlockPos pos, double maxDistance, boolean flag);
 
@@ -78,14 +95,31 @@ public interface PlayerDetector {
             return new PlayerDetector.EntitySelector() {
                 @Override
                 public List<Player> getPlayers(ServerLevel level, Predicate<? super Player> predicate) {
-                    return players.stream().filter(predicate).toList();
+                    // Leaf start - Remove streams on PlayerDetector
+                    List<Player> result = new java.util.ArrayList<>();
+                    for (Player player : players) {
+                        if (predicate.test(player)) {
+                            result.add(player);
+                        }
+                    }
+                    return result;
+                    // Leaf end - Remove streams on PlayerDetector
                 }
 
                 @Override
                 public <T extends Entity> List<T> getEntities(
                     ServerLevel level, EntityTypeTest<Entity, T> typeTest, AABB boundingBox, Predicate<? super T> predicate
                 ) {
-                    return players.stream().map(typeTest::tryCast).filter(Objects::nonNull).filter(predicate).toList();
+                    // Leaf start - Remove streams on PlayerDetector
+                    List<T> result = new java.util.ArrayList<>();
+                    for (Player player : players) {
+                        T entity = typeTest.tryCast(player);
+                        if (entity != null && predicate.test(entity)) {
+                            result.add(entity);
+                        }
+                    }
+                    return result;
+                    // Leaf end - Remove streams on PlayerDetector
                 }
             };
         }