Доработка. Запретить перемещение карты пользователем за край.

scenes/tilemap/tilemap.gd

@@ -24,8 +24,8 @@ class_name MercatorTileMap
 @export_color_no_alpha() var back_color: = Color.BLACK
 const default_size: = 400.0
 var is_centered: = false
-var is_anim_playng: = false
-
+var is_out_border1: = true
+var is_out_border2: = true
 
 @export var animation_time: float = 0.1:
     set(val):
@@ -65,7 +65,7 @@ var is_anim_playng: = false
         return _xyz.z
 
 
-var _xyz: Vector3 = Vector3(0, 0, min_zoom_level)
+var _xyz: Vector3 = Vector3(0, 0, 0)
 var _cache: Dictionary = {}
 var _queue: Dictionary = {}
 var _dragging: bool = false
@@ -111,6 +111,7 @@ func get_marks_count(): return _marks.size()
 
 
 func _ready() -> void:
+    _xyz.z = min_zoom_level
     image_type = 'png'
     $canvas.connect('mouse_entered', func(): _rollover = true)
     $canvas.connect('mouse_exited',  func(): _rollover = false)
@@ -199,12 +200,12 @@ func _input(e) -> void:
     if e is InputEventMouseButton:
         if e.pressed:
             if e.button_index == MOUSE_BUTTON_WHEEL_DOWN:
-                increment_zoom(-zoom_step, lmp)
-                queue_redraw()
+                if (not is_out_border1) and (not is_out_border2):
+                    increment_zoom(-zoom_step, lmp)
+                    queue_redraw()
             elif e.button_index == MOUSE_BUTTON_WHEEL_UP:
                 increment_zoom( zoom_step, lmp)
                 queue_redraw()
-
         if e.button_index == MOUSE_BUTTON_LEFT:
             _dragging = e.pressed
             _drag_pos = screen_to_world(_xyz, lmp.x, lmp.y)
@@ -214,7 +215,17 @@ func _input(e) -> void:
             var wp = screen_to_world(_xyz, lmp.x, lmp.y)
             var diff = _drag_pos - wp
             _xyz.x += diff.x
-            _xyz.y += diff.y
+
+            if (not is_out_border1) and diff.y >= 0:
+                _xyz.y += diff.y
+            if is_out_border1 and diff.y <= 0:
+                _xyz.y += diff.y
+
+            if is_out_border2 and diff.y >= 0:
+                _xyz.y += diff.y
+            if (not is_out_border2) and diff.y <= 0:
+                _xyz.y += diff.y
+
             queue_redraw()
             if diff.length() > 0:
                 signaller.emmit(signaller.map_user_panning)
@@ -253,11 +264,12 @@ func set_zoom(zoom: float, pivot: Vector2) -> void:
 func _draw() -> void:
     var z = min(max_zoom_level, _xyz.z)
     var t1 = screen_to_tile(0, 0, z)
-    var t2 = screen_to_tile($canvas.size.x, $canvas.size.y, z)
-    for tx in range(t1.x, t2.x + 1):
-        for ty in range(t1.y, t2.y + 1):
+    var t2 = screen_to_tile($canvas.size.x, $canvas.size.y, z) + Vector2(1, 1)
+    is_out_border1 = true
+    is_out_border2 = true
+    for tx in range(t1.x, t2.x):
+        for ty in range(t1.y, t2.y):
             _draw_tile(tx, ty, z)
-
     var n = pow(2, z)
     var dx = n * tile_width
     var c = $canvas.size / 2.0
@@ -295,7 +307,6 @@ func get_next_in_queue() -> Tile:
     return tile
 
 
-# delete oldest tiles from cache
 func _clean_cache() -> void:
     var overflow = _cache.size() - max_cached_tiles
     if overflow <= 0:
@@ -365,11 +376,9 @@ func _response(result, code, _headers: Array, body: PackedByteArray, req, tile:
         push_error('не удалось получить изображение (неверный формат?) из \"%s\"' % tile.url)
         return
 
-    # create texture from image and add it to the cache
     tile.texture = ImageTexture.create_from_image(image)
     _cache[tile.i] = tile
 
-    # redraw the map
     queue_redraw()
 
 
@@ -395,11 +404,19 @@ func _draw_subtile(tx: int, ty: int, tz: int, origx: int, origy: int, origz: flo
 
     var rect = Rect2(xrat1 * tile_width, yrat1 * tile_height, xwidth * tile_width, yheight * tile_height)
     if subtile.texture:
+        check_borders(p1, p2, $canvas.size.y)
         draw_texture_rect_region(subtile.texture, Rect2(p1, p2 - p1), rect)
         return true
     return false
 
 
+func check_borders(p1, p2, h):
+    if p1.y < 0:
+        is_out_border1 = false
+    if p1.y + (p2 - p1).y > h:
+        is_out_border2 = false
+
+
 func _draw_tile(tx: int, ty: int, z: float) -> void:
     var tz = floor(z)
     var p1 = tile_to_screen(tx, ty, z)
@@ -407,6 +424,7 @@ func _draw_tile(tx: int, ty: int, z: float) -> void:
     var tile = get_tile(tx, ty, tz)
     if tile:
         if tile.texture:
+            check_borders(p1, p2, $canvas.size.y)
             draw_texture_rect(tile.texture, Rect2(p1, p2 - p1), false, Color.WHITE, false)
         else:
             var zzz = tz
@@ -416,7 +434,7 @@ func _draw_tile(tx: int, ty: int, z: float) -> void:
                 zzz -= 1
                 txx = floor(txx / 2.0)
                 tyy = floor(tyy / 2.0)
-                if _draw_subtile(txx, tyy, zzz, tx, ty,z):
+                if _draw_subtile(txx, tyy, zzz, tx, ty, z):
                     break
 
 

scenes/работа/работа.tscn

@@ -84,6 +84,8 @@ metadata/_edit_lock_ = true
 [node name="tilemap" parent="." instance=ExtResource("10_gtwyg")]
 self_modulate = Color(1, 1, 1, 0.415686)
 position = Vector2(360, 360)
+min_zoom_level = 3
+max_zoom_level_server = 11
 
 [node name="player" type="AnimationPlayer" parent="tilemap"]
 libraries = {