SakuraMC/sakura-server/paper-patches/features/0004-Optimise-entity-scheduler-ticking.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samsuik <kfian294ma4@gmail.com>
Date: Fri, 13 Sep 2024 17:22:51 +0100
Subject: [PATCH] Optimise entity scheduler ticking


diff --git a/src/main/java/io/papermc/paper/threadedregions/EntityScheduler.java b/src/main/java/io/papermc/paper/threadedregions/EntityScheduler.java
index c03608fec96b51e1867f43d8f42e5aefb1520e46..543251fc4973157dbb239729e656a8820fe88654 100644
--- a/src/main/java/io/papermc/paper/threadedregions/EntityScheduler.java
+++ b/src/main/java/io/papermc/paper/threadedregions/EntityScheduler.java
@@ -50,6 +50,22 @@ public final class EntityScheduler {
         this.entity = Validate.notNull(entity);
     }
 
+    // Sakura start - optimise entity scheduler ticking
+    public boolean hasTask() {
+        return !this.currentlyExecuting.isEmpty() || !this.oneTimeDelayed.isEmpty();
+    }
+
+    private void newScheduledTask() {
+        net.minecraft.server.MinecraftServer.getServer().scheduleOnMain(() -> {
+            Entity handle = this.entity.getHandleRaw();
+            net.minecraft.server.level.ServerLevel level = (net.minecraft.server.level.ServerLevel) handle.level();
+            ca.spottedleaf.moonrise.patches.chunk_system.level.entity.server.ServerEntityLookup entityLookup = (ca.spottedleaf.moonrise.patches.chunk_system.level.entity.server.ServerEntityLookup) level.moonrise$getEntityLookup();
+
+            entityLookup.entityStartScheduled(handle);
+        });
+    }
+    // Sakura end - optimise entity scheduler ticking
+
     /**
      * Retires the scheduler, preventing new tasks from being scheduled and invoking the retired callback
      * on all currently scheduled tasks.
@@ -128,6 +144,7 @@ public final class EntityScheduler {
                 return new ArrayList<>();
             }).add(task);
         }
+        this.newScheduledTask(); // Sakura - optimise entity scheduler ticking
 
         return true;
     }