From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Sun, 14 Aug 2022 10:35:42 +0800
Subject: [PATCH] Only check for spooky season once an hour

This patch is Powered by Pufferfish(https://github.com/pufferfish-gg/Pufferfish)

diff --git a/net/minecraft/world/entity/ambient/Bat.java b/net/minecraft/world/entity/ambient/Bat.java
index eb9fb57440f498079182030a46034008d3f6b5e8..5f0ddf96e8ca1bb32c773f11232dedd1a981fde9 100644
--- a/net/minecraft/world/entity/ambient/Bat.java
+++ b/net/minecraft/world/entity/ambient/Bat.java
@@ -244,12 +244,30 @@ public class Bat extends AmbientCreature {
         }
     }
 
+    // Leaves start - only check for spooky season once an hour
+    private static boolean isSpookySeason = false;
+    private static final int ONE_HOUR = 20 * 60 * 60;
+    private static int lastSpookyCheck = -ONE_HOUR;
+
     private static boolean isHalloween() {
-        LocalDate localDate = LocalDate.now();
-        int i = localDate.get(ChronoField.DAY_OF_MONTH);
-        int i1 = localDate.get(ChronoField.MONTH_OF_YEAR);
-        return i1 == 10 && i >= 20 || i1 == 11 && i <= 3;
+        if (org.leavesmc.leaves.LeavesConfig.performance.checkSpookySeasonOnceAnHour) {
+            if (net.minecraft.server.MinecraftServer.currentTick - lastSpookyCheck > ONE_HOUR) {
+                LocalDate localdate = LocalDate.now();
+                int i = localdate.getDayOfMonth();
+                int j = localdate.getMonth().getValue();
+
+                isSpookySeason = j == 10 && i >= 20 || j == 11 && i <= 3;
+                lastSpookyCheck = net.minecraft.server.MinecraftServer.currentTick;
+            }
+            return isSpookySeason;
+        } else {
+            LocalDate localDate = LocalDate.now();
+            int i = localDate.get(ChronoField.DAY_OF_MONTH);
+            int i1 = localDate.get(ChronoField.MONTH_OF_YEAR);
+            return i1 == 10 && i >= 20 || i1 == 11 && i <= 3;
+        }
     }
+    // Leaves end - only check for spooky season once an hour
 
     private void setupAnimationStates() {
         if (this.isResting()) {