【CBL·K_bai】更高级的安检门——"/stats"指令进阶教程 - Minecraft(我的世界)中文论坛

"更高级的安检门” 演示看视频~
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======================stats本质======================

接下来我就来说说/stats命令的本质
stats命令的本质可以理解成"重定向"
也就是把命令执行结果重定向至一个计分板这在上个教程里我也说过
stats创建了命令执行结果与计分板的链接

而这种链接是怎么实现的？执行命令的实体/方块如何知道
它的执行结果要往哪一个计分板输出呢？
而这个信息就是存储在方块/实体的NBT中的

来自英文wiki:

CommandStats: Information identifying scoreboard parameters to modify relative to the last command run.

SuccessCountName: Player name to store success of the last command. Can be a player selector but may only have one resulting target.
SuccessCountObjective: Objective's name to store the success of the last command.
AffectedBlocksName: Player name to store how many blocks were modified in the last command. Can be a player selector but may only have one resulting target.
AffectedBlocksObjective: Objective's name to store how many blocks were modified in the last command.
AffectedEntitiesName: Player name to store how many entities were altered in the last command. Can be a player selector but may only have one resulting target.
AffectedEntitiesObjective: Objective's name to store how many entities were altered in the last command.
AffectedItemsName: Player name to store how many items were altered in the last command. Can be a player selector but may only have one resulting target.
AffectedItemsObjective: Objective's name to store how many items were altered in the last command.
QueryResultName: Player name to store the query result of the last command. Can be a player selector but may only have one resulting target.
QueryResultObjective: Objective's name to store the query result of the last command.

这便是用过stats指令的方块/实体会拥有的NBT值

也就是说 stats是通过看一个方块/实体的有关stats的NBT值
来决定它向哪个玩家/实体的计分板输出信息

也就是说/stats指令的格式中(以实体为例)
/stats entity <玩家名> set <模式> <玩家名2> <计分板变量名>
<玩家名2> 所指的实体
是以被使用/stats的实体为中心的<玩家名2>

所以 /stats的工作方式是这样的(以实体为例)
实体执行命令->得到输出结果->将输出结果赋予以实体为中心<玩家名2>的计分板变量

这便是对"重定向"的理解

举个例子吧
把所有玩家执行命令的成功次数重定向至他们自己的test变量里
/stats entity @a set SuccessCount @p test
注意@a和@p的使用

这下更高级安检门的原理就迎刃而解了

======================具体流程======================

第一步是建立安检门也就是在安检门处放一个装备架
testforItem变量用于检测铁锭物品
testforDoor用于比对铁锭周围的方块是否是安检门的样子
createDoor用于判断要生成的安检门的方向是什么

#检测铁锭
/scoreboard players set @e[type=Item] testforItem 1 {Item:{id:"minecraft:iron_ingot",Damage:0s,Count:1b}}
#创建链接
/stats entity @e[type=Item,score_testforItem_min=1] set AffectedBlocks @e[type=Item,score_testforItem_min=1,c=1] testforDoor
#初始化计分板
/scoreboard players set @e[type=Item,score_testforItem_min=1] testforDoor 0
#探测并标记
/execute @e[type=Item,score_testforItem_min=1] ~ ~ ~ /testforblocks 897 55 16 895 59 16 ~-1 ~-1 ~
/scoreboard players set @e[type=Item,score_testforItem_min=1,score_testforDoor_min=1] createDoor 1
/execute @e[type=Item,score_testforItem_min=1] ~ ~ ~ /testforblocks 896 55 12 896 59 10 ~ ~-1 ~-1
/scoreboard players set @e[type=Item,score_testforItem_min=1,score_testforDoor_min=1] createDoor 2
#生成装备架
/execute @e[type=Item,score_testforItem_min=1,score_createDoor_min=2,score_createDoor=2] ~ ~ ~ /clone 894 55 12 894 59 10 ~ ~-1 ~-1
/execute @e[type=Item,score_testforItem_min=1,score_createDoor_min=1,score_createDoor=1] ~ ~ ~ /clone 897 55 18 895 59 18 ~-1 ~-1 ~
(把安检门复制到铁锭物品处)
/execute @e[type=Item,score_testforItem_min=1,score_createDoor_min=1] ~ ~ ~ /summon ItemFrame ~ ~ ~ {CustomName:"doorFrame"}
(在物品处生成一个物品展示框用于生成位于方块中心的装备架青皮帖子里有讲)
/execute @e[type=ItemFrame,name=doorFrame] ~ ~ ~ /kill @e[type=Item,score_testforItem_min=1,score_createDoor_min=1,r=0]
/execute @e[type=ItemFrame,name=doorFrame] ~ ~ ~0.46875 /summon ArmorStand ~ ~ ~ {CustomName:"door",NoGravity:1}
/kill @e[type=ItemFrame,name=doorFrame]

接下来就是在上一篇教程中也写过的检测玩家背包中物品数量
playerIngotCount变量用于记录玩家背包中铁锭数量

#检测玩家状态
/execute @e[type=ArmorStand,name=door] ~ ~ ~ /stats entity @a[r=10] set AffectedItems @p playerIngotCount
(建立链接)
/execute @e[type=ArmorStand,name=door] ~ ~ ~ /scoreboard players set @a[r=10] playerIngotCount 0
(初始化计分板)
/execute @e[type=ArmorStand,name=door] ~ ~ ~ /execute @a[r=10] ~ ~ ~ /clear @p minecraft:iron_ingot 0 0
(让玩家执行命令)

然后检测安检门周围有无手里有两个铁锭以上的玩家同样用到stats
doorStatus表示门开或关的状态

#检测装备架状态
/stats entity @e[type=ArmorStand,name=door] set SuccessCount @e[type=ArmorStand,name=door,c=1] doorStatus
(建立链接)
/scoreboard players set @e[type=ArmorStand,name=door] doorStatus 0
(初始化计分板)
/execute @e[type=ArmorStand,name=door] ~ ~ ~ /testfor @a[r=10,score_playerIngotCount_min=2]
(让盔甲架执行命令)

最后开关门

#开关门
/stats entity @e[type=ArmorStand,name=door] clear SuccessCount
/execute @e[type=ArmorStand,name=door,score_doorStatus_min=1] ~ ~ ~ /fill ~ ~ ~ ~ ~1 ~ wool
/execute @e[type=ArmorStand,name=door,score_doorStatus=0] ~ ~ ~ /fill ~ ~ ~ ~ ~1 ~ air

将近三十条命令完成这个小作品

======================结语======================

/stats这个指令很冷门主要就是因为它比较难理解
希望我讲了两回之后各位能更好的利用这个命令XD

下载地址:http://pan.baidu.com/s/1bnvzYI7
文件名:[CBL·K_bai] 教程 [20150906].zip