Make map points reveal on click

map_point.gd

@@ -3,11 +3,24 @@ class_name MapPoint
 extends Node2D
 
 
+signal clicked
+
+
 @export_tool_button("Update lines", "Callable") var update_lines = queue_redraw
 @export var connected_map_points: Array[MapPoint] = []:
 	set(new_value):
+		for p in connected_map_points:
+			p.draw.disconnect(queue_redraw)
+			p.hidden.disconnect(queue_redraw)
 		connected_map_points = new_value
+		for p in connected_map_points:
+			p.draw.connect(queue_redraw)
+			p.hidden.connect(queue_redraw)
 		queue_redraw()
+@export var is_shown_on_map: bool = false:
+	set(new_value):
+		is_shown_on_map = new_value
+		_set_point_shown_on_map.call_deferred()
 
 @onready var hover_dot: Sprite2D = $HoverDot
 
@@ -21,6 +34,21 @@ func _on_area_2d_mouse_entered():
 func _on_area_2d_mouse_exited():
 	hover_dot.hide()
 
+func _on_area_2d_input_event(viewport, event, shape_idx):
+	if event is InputEventMouseButton and event.pressed:
+		clicked.emit()
+
 func _draw():
+	if not is_shown_on_map: return
+	
 	for p in connected_map_points:
-		draw_dashed_line(Vector2.ZERO, to_local(p.global_position), Color.BLACK)
+		if p.is_shown_on_map:
+			draw_dashed_line(Vector2.ZERO, to_local(p.global_position), Color.BLACK)
+
+func _set_point_shown_on_map():
+	visible = is_shown_on_map
+	if not $Area2D: return
+	$Area2D.monitorable = is_shown_on_map
+	$Area2D.monitoring = is_shown_on_map
+	$Area2D.input_pickable = is_shown_on_map
+	queue_redraw()

map_point.tscn

@@ -44,5 +44,6 @@ collision_mask = 1024
 [node name="CollisionShape2D" type="CollisionShape2D" parent="Area2D"]
 shape = SubResource("CircleShape2D_01fxh")
 
+[connection signal="input_event" from="Area2D" to="." method="_on_area_2d_input_event"]
 [connection signal="mouse_entered" from="Area2D" to="." method="_on_area_2d_mouse_entered"]
 [connection signal="mouse_exited" from="Area2D" to="." method="_on_area_2d_mouse_exited"]

prototype_map.gd

@@ -1 +1,19 @@
 extends Node2D
+
+
+func _on_map_point_clicked():
+	if not $MapPoint2.is_shown_on_map:
+		$MapPoint2.is_shown_on_map = true
+
+func _on_map_point_2_clicked():
+	if not $MapPoint3.is_shown_on_map:
+		$MapPoint3.is_shown_on_map = true
+	elif not $MapPoint4.is_shown_on_map:
+		$MapPoint4.is_shown_on_map = true
+
+func _on_map_point_3_clicked():
+	pass # Replace with function body.
+
+
+func _on_map_point_4_clicked():
+	pass # Replace with function body.

prototype_map.tscn

@@ -24,13 +24,22 @@ texture = SubResource("GradientTexture2D_fjiih")
 [node name="MapPoint" parent="." node_paths=PackedStringArray("connected_map_points") instance=ExtResource("2_mj08v")]
 position = Vector2(199, 332)
 connected_map_points = [NodePath("../MapPoint2")]
+is_shown_on_map = true
 
 [node name="MapPoint2" parent="." node_paths=PackedStringArray("connected_map_points") instance=ExtResource("2_mj08v")]
+visible = false
 position = Vector2(256, 299)
 connected_map_points = [NodePath("../MapPoint3"), NodePath("../MapPoint4")]
 
 [node name="MapPoint3" parent="." instance=ExtResource("2_mj08v")]
+visible = false
 position = Vector2(315, 278)
 
 [node name="MapPoint4" parent="." instance=ExtResource("2_mj08v")]
+visible = false
 position = Vector2(320, 330)
+
+[connection signal="clicked" from="MapPoint" to="." method="_on_map_point_clicked"]
+[connection signal="clicked" from="MapPoint2" to="." method="_on_map_point_2_clicked"]
+[connection signal="clicked" from="MapPoint3" to="." method="_on_map_point_3_clicked"]
+[connection signal="clicked" from="MapPoint4" to="." method="_on_map_point_4_clicked"]