From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrPowerGamerBR <git@mrpowergamerbr.com>
Date: Fri, 17 Nov 2023 14:22:41 -0300
Subject: [PATCH] SparklyPaper: Skip "MapItem#update()" if the map does not
 have the CraftMapRenderer present

Original project: https://github.com/SparklyPower/SparklyPaper

Optimizes "image in map" maps, without requiring the map to be locked, which some old map plugins may not do

This has the disadvantage that the vanilla map data will never be updated while the CraftMapRenderer is not present, but that's not a huuuge problem for u

diff --git a/net/minecraft/world/item/MapItem.java b/net/minecraft/world/item/MapItem.java
index 780793750c99185e8139a1cd0ad52bc7b80899a9..0073f21245c98e7b5791f9db1ad221aef7cb594a 100644
--- a/net/minecraft/world/item/MapItem.java
+++ b/net/minecraft/world/item/MapItem.java
@@ -275,12 +275,24 @@ public class MapItem extends Item {
                 savedData.tickCarriedBy(player, stack);
             }
 
-            if (!savedData.locked && slot != null && slot.getType() == EquipmentSlot.Type.HAND) {
+            if (!savedData.locked && (!org.dreeam.leaf.config.modules.opt.SkipMapItemDataUpdates.enabled || shouldUpdateMap(savedData)) && slot != null && slot.getType() == EquipmentSlot.Type.HAND) { // SparklyPaper - don't update maps if they don't have the CraftMapRenderer in the render list
                 this.update(level, entity, savedData);
             }
         }
     }
 
+    // SparklyPaper start - don't update maps if they don't have the CraftMapRenderer in the render list
+    private static boolean shouldUpdateMap(MapItemSavedData savedData) {
+        for (org.bukkit.map.MapRenderer mapRenderer : savedData.mapView.getRenderers()) {
+            if (mapRenderer.getClass() == org.bukkit.craftbukkit.map.CraftMapRenderer.class) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+    // SparklyPaper end - don't update maps if they don't have the CraftMapRenderer in the render list
+
     @Override
     public void onCraftedPostProcess(ItemStack stack, Level level) {
         MapPostProcessing mapPostProcessing = stack.remove(DataComponents.MAP_POST_PROCESSING);