可以买箭了

data/ltw/functions/init.mcfunction

@@ -25,7 +25,6 @@ forceload add 0 0
 setblock 0 0 0 jukebox
 
 # 记分板
-scoreboard objectives add gold dummy "金粒"
 scoreboard objectives remove temp
 scoreboard objectives add temp dummy
 scoreboard objectives remove countdown
@@ -51,6 +50,14 @@ scoreboard objectives remove game_id
 scoreboard objectives add game_id dummy "游戏编号"
 scoreboard players set $ game_id 0
 
+# 商店系统记分板
+scoreboard objectives add gold dummy "金粒"
+scoreboard objectives add shop_arrow dummy "箭升级"
+scoreboard objectives add shop_potion dummy "药水升级"
+scoreboard objectives add shop_apple dummy "苹果升级"
+scoreboard objectives add shop_armor dummy "护甲升级"
+scoreboard objectives add shop_weapon dummy "武器升级"
+
 # 常量与变量初始化
 scoreboard players set $c_mini_total mem 7
 scoreboard players set #const_2 mem 2

data/ltw/functions/state/0/shop/buy_arrow1.mcfunction

@@ -0,0 +1,14 @@
+# 箭 x2 (1 gi)
+
+tag @s remove canbuy
+tag @s[scores={shop_arrow=..0,gold=9..}] add canbuy
+
+tellraw @s[scores={shop_arrow=1..}] ["",{"text":">> ","color":"aqua","bold":true},{"text":"你已经购买了这个物品了!","color":"aqua"}]
+tellraw @s[scores={shop_arrow=..0,gold=..8}] ["",{"text":">> ","color":"red","bold":true},{"text":"你没有足够的金锭来购买这个物品!","color":"red"}]
+
+tellraw @s[tag=canbuy] ["",{"text":">> ","color":"green","bold":true},{"text":"你购买了 箭 x2!","color":"green"}]
+scoreboard players add @s[tag=canbuy] shop_arrow 1
+scoreboard players remove @s[tag=canbuy] gold 9
+
+execute as @s[tag=!canbuy] at @s run function lib:sounds/error
+execute as @s[tag=canbuy] at @s run function lib:sounds/levelup