battlesystem: initial signal sending use in widgets

sonic-radiance.love/scenes/battlesystem/controller/menu.lua

@@ -222,6 +222,8 @@ end
 
 function CharMenuWidget:new(scene, menu_name, label1, label2, character)
   self.character = character
+  self.menuname = menu_name
+  self.scene    = scene
   local menu = scene.menusystem.menus[menu_name] or error("menu " ..menu_name .. " doesn't exist")
   local font = scene.assets.fonts["small"]
   CharMenuWidget.super.new(self, menu, font, label1)
@@ -241,4 +243,9 @@ function CharMenuWidget:drawCanvas()
   self.font:print(self.label2, self.width - 9, h, "right")
 end
 
+function CharMenuWidget:action()
+  self.character:getSignal(self.menuname, self.label)
+  self.scene.menusystem:reset()
+end
+
 return MenuConstructor