Доработка. Предел уровня детализации и масштаб теперь хранятся в разных переменных

scenes/tilemap/tilemap.gd

@@ -17,9 +17,10 @@ class_name MercatorTileMap
 @export var tile_width: float = 256.0
 @export var tile_height: float = 256.0
 @export_range(1, 1000, 1) var max_concurrent_requests:int = 5
-@export_range(100, 100000, 1) var max_cached_tiles: int = 200
-@export_range(0, 25, 1) var max_zoom_level: int = 19
-@export_range(0, 25, 1) var min_zoom_level: int = 0
+@export_range(100, 100000, 1) var max_cached_tiles: int = 1024
+@export_range(0, 20, 1) var max_zoom_level: int = 20
+@export_range(0, 20, 1) var min_zoom_level: int = 0
+@export_range(0, 20, 1) var max_zoom_level_server: int = 20
 @export_color_no_alpha() var back_color: = Color.BLACK
 const default_size: = 400.0
 var is_centered: = false
@@ -556,10 +557,19 @@ func get_tile(x: int, y: int, z: int, create: bool = true) -> Tile:
 
     var queue_size: = _queue.size()
     if create and (not $canvas/player.is_playing()):
-        tile = Tile.new(idx, x, y, z)
-        tile.url = base_url.replace('{x}', str(x)).replace('{y}', str(y)).replace('{z}', str(z))
-        tile.t = now
-        _queue[idx] = tile
+        if z > max_zoom_level_server:
+            z = max_zoom_level_server
+            n = pow(2, z) - 1
+            x = clamp(x, 0, n)
+            y = clamp(y, 0, n)
+            idx = xyz_to_idx(x, y, z)
+            if _queue.has(idx):
+                tile = _queue[idx]
+        if not tile:
+            tile = Tile.new(idx, x, y, z)
+            tile.url = base_url.replace('{x}', str(x)).replace('{y}', str(y)).replace('{z}', str(z))
+            tile.t = now
+            _queue[idx] = tile
 
     if queue_size == 0 and _queue.size():
         emit_signal('load_started')

scenes/tilemap/tilemap.tscn

@@ -28,7 +28,9 @@ size = Vector2(400, 400)
 
 [node name="tilemap" type="CanvasGroup" groups=["gui_items"]]
 script = ExtResource("1_l64tp")
-max_zoom_level = 21
+base_url = "http://192.168.11.105:8001/osm_tiles/{z}/{x}/{y}.png"
+max_zoom_level = 10
+max_zoom_level_server = 10
 az = 2.0
 
 [node name="canvas" type="TextureRect" parent="." groups=["gui_items"]]