weapon item 优化

script/ui/hud/weapon_item.gd

@@ -58,7 +58,7 @@ func create_weapon_item(offset:int)->WeaponItemSub:
 	var weapon_item_sub = weapon_scene.instantiate() as WeaponItemSub
 	var weapon_cfg = weapon_list[index] as WeaponCfg
 	add_child(weapon_item_sub)
-	weapon_item_sub.set_texture(weapon_cfg.icon)
+	weapon_item_sub.init(weapon_cfg.icon)
 	return weapon_item_sub
 
 func item_lerp(dir:int,rate:float):

script/ui/hud/weapon_item_sub.gd

@@ -1,12 +1,16 @@
 extends Control
 class_name WeaponItemSub
 
+var icon : TextureRect
+var slot : TextureRect
 
-func set_texture(value:Texture2D):
-	$WeaponIcon.texture = value
+func init(value:Texture2D):
+	icon = $WeaponIcon
+	slot = $WeaponSlot
+	icon.texture = value
 
 func update_alpha(alpha_from:float,alpha_to:float,rate:float):
 	var alpha = lerp(alpha_from,alpha_to,rate)
-	$WeaponIcon.modulate = Color(1,1,1,alpha)
-	$WeaponSlot.modulate = Color(1,1,1,alpha)
+	icon.modulate = Color(1,1,1,alpha)
+	slot.modulate = Color(1,1,1,alpha)