From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Yive <admin@yive.me>
Date: Wed, 26 May 2021 15:09:33 -0700
Subject: [PATCH] Limit item frame cursors on maps


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 108a005c296c4ed370de4af636163088971bed13..9287dfcf29ce6f89a937f4e10b70be8faab9ab9e 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -816,4 +816,9 @@ public class PaperWorldConfig {
     private void allowUsingSignsInsideSpawnProtection() {
         allowUsingSignsInsideSpawnProtection = getBoolean("allow-using-signs-inside-spawn-protection", allowUsingSignsInsideSpawnProtection);
     }
+
+    public int mapItemFrameCursorLimit = 128;
+    private void mapItemFrameCursorLimit() {
+        mapItemFrameCursorLimit = getInt("map-item-frame-cursor-limit", mapItemFrameCursorLimit);
+    }
 }
diff --git a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
index e7b178127228dea5a17ba0fbd6bae148d70e8eb5..e2f550c833030d8ad12b80d3d379f4731ddeb2ec 100644
--- a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
+++ b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
@@ -279,8 +279,12 @@ public class MapItemSavedData extends SavedData {
 
             MapFrame worldmapframe1 = new MapFrame(blockposition, entityitemframe.getDirection().get2DDataValue() * 90, entityitemframe.getId());
 
+            // Paper start
+            if (this.decorations.size() < player.level.paperConfig.mapItemFrameCursorLimit) {
             this.addDecoration(MapDecoration.Type.FRAME, player.level, "frame-" + entityitemframe.getId(), (double) blockposition.getX(), (double) blockposition.getZ(), (double) (entityitemframe.getDirection().get2DDataValue() * 90), (Component) null);
             this.frameMarkers.put(worldmapframe1.getId(), worldmapframe1);
+            }
+            // Paper end
         }
 
         CompoundTag nbttagcompound = stack.getTag();