From a547ba2c1776ff762f40f23a5be0ff831d20db6a Mon Sep 17 00:00:00 2001
From: Ben Milanko <ben.milanko@protonmail.com>
Date: Tue, 22 Apr 2025 12:09:38 +1000
Subject: [PATCH] Add spiderfy marker limit

---
 lib/src/marker_cluster_layer.dart         | 13 ++++++++++---
 lib/src/marker_cluster_layer_options.dart |  5 +++++
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/lib/src/marker_cluster_layer.dart b/lib/src/marker_cluster_layer.dart
index 55dc689..87e1388 100755
--- a/lib/src/marker_cluster_layer.dart
+++ b/lib/src/marker_cluster_layer.dart
@@ -50,6 +50,13 @@ class _MarkerClusterLayerState extends State<MarkerClusterLayer>
 
   _MarkerClusterLayerState();
 
+  bool _shouldSpiderfy(MarkerClusterNode cluster) {
+    return widget.options.spiderfyCluster &&
+        (widget.options.disableSpiderfyAboveMarkerCount <= 0 ||
+            cluster.markers.length <=
+                widget.options.disableSpiderfyAboveMarkerCount);
+  }
+
   bool _isSpiderfyCluster(MarkerClusterNode cluster) {
     return spiderfyCluster != null &&
         spiderfyCluster!.bounds.center == cluster.bounds.center;
@@ -623,7 +630,7 @@ class _MarkerClusterLayerState extends State<MarkerClusterLayer>
       widget.options.onClusterTap?.call(cluster);
 
       if (!widget.options.zoomToBoundsOnClick) {
-        if (widget.options.spiderfyCluster) {
+        if (_shouldSpiderfy(cluster)) {
           if (spiderfyCluster != null) {
             if (spiderfyCluster == cluster) {
               _unspiderfy();
@@ -691,7 +698,7 @@ class _MarkerClusterLayerState extends State<MarkerClusterLayer>
           zoomTween.begin == zoomTween.end;
 
       if (isAlreadyFit) {
-        if (cannotDivide && widget.options.spiderfyCluster) {
+        if (cannotDivide && _shouldSpiderfy(cluster)) {
           _spiderfy(cluster);
         }
         return;
@@ -711,7 +718,7 @@ class _MarkerClusterLayerState extends State<MarkerClusterLayer>
           ..removeListener(listener)
           ..reset();
 
-        if (cannotDivide && widget.options.spiderfyCluster) {
+        if (cannotDivide && _shouldSpiderfy(cluster)) {
           _spiderfy(cluster);
         }
       });
diff --git a/lib/src/marker_cluster_layer_options.dart b/lib/src/marker_cluster_layer_options.dart
index 2097a6f..683bfd5 100755
--- a/lib/src/marker_cluster_layer_options.dart
+++ b/lib/src/marker_cluster_layer_options.dart
@@ -130,6 +130,10 @@ class MarkerClusterLayerOptions {
   /// If false remove spiderfy effect on tap
   final bool spiderfyCluster;
 
+  /// If set, spiderfy will be disabled above this marker count
+  /// 0 -> No limit
+  final int disableSpiderfyAboveMarkerCount;
+
   /// Increase to increase the distance away that circle spiderfied markers appear from the center
   final int spiderfyCircleRadius;
 
@@ -210,6 +214,7 @@ class MarkerClusterLayerOptions {
     this.circleSpiralSwitchover = 9,
     this.spiderfyShapePositions,
     this.spiderfyCluster = true,
+    this.disableSpiderfyAboveMarkerCount = 0,
     this.polygonOptions = const PolygonOptions(),
     this.showPolygon = true,
     this.onMarkerTap,