I'm building a Minecraft "War" server where there are 2 teams. Each has a 750×750 area of the Nether to gain resources from. However, I don't want them getting onto the Nether roof and then breaking bedrock to gain access into the other team's side. I can use command blocks and commands.
-
I don’t exactly know the command for this, but you could just teleport anyone higher than 122 back to Y 122– PenguinNov 29, 2020 at 5:22
-
Ok, if that's possible, then that would be perfect. I don't know the command, however.– kanoseregNov 29, 2020 at 5:37
-
Yes I know it is possible through accessing player NBT Position but I am not sure how to do it, I do not doubt that someone will soon see this who does, though. However I might know, is the area you want finite or infinite (limited area or never ending area)?– PenguinNov 29, 2020 at 5:38
-
2If you have access to commands, why not fill the nether ceiling with bedrock or barrier blocks? Then there is no easily accessible nether ceiling.– qwrNov 29, 2020 at 7:37
-
4Possible duplicate of Limit Player height in Minecraft 1.15.2– ppperyFeb 14 at 1:01
2 Answers
My method uses scoreboards for detecting position. Since with scoreboards you can execute if a score is in a range.
Note: This will work in a infinite area, and may cause less lag then some other methods
Hovering your mouse over italicized words will give you a short explanation/tooltip
Important: You must be in a Minecraft version of at least 1.13 for this method to work
Preparation
In Minecraft, you need to create a scoreboard objective with a dummy critera. You can do that with the following command.
scoreboard objectives create ypos dummy
After Preparation
Next, you need to have in a Repeating Command Block or a Ticking Function a command that gets the Pos[1]
of all players/entities and stores it in our ypos
scoreboard. The following command will accomplish that.
execute as @a at @s store result score @s ypos run data get entity @s Pos[1]
If you want it to work for all entities, replace @a
with @e
. Next, you need a Repeating Command Block or a Ticking Function with a command testing for players that have a ypos score of 122 or more and teleport them to 121 or lower. The following command accomplishes that.
execute as @a[scores={ypos=122..}] at @s run tp ~ 121 ~
Again, if you want this to work with entities, change the @a
to @e
Summary
This method stores the ypos of every player/entity in a scoreboard, then checks to see if the ypos value is greater than or equal to 122 and if so, it will teleport them down.
-
A user has reported that this may also take effect in other dimensions when they don't want it to. Do you know how to fix it?– x--Apr 3, 2021 at 17:07
Note: The following method is for a finite area.
1.13+
Command (obviously adjust the coordinates for your needs):
/execute as @a[x=0,y=123,z=0,dx=750,dy=200,dz=750] at @s run tp @s ~ 121 ~
x=0
..y=
..z=
... - Corner 1dx=750
..dy=
..dz=
... - Corner 2~ 121 ~
- Location of player, but atY
121
1.8 - 1.12
Command (obviously adjust the coordinates for your needs):
/execute @a[x=0,y=123,z=0,dx=750,dy=200,dz=750] tp @s ~ 121 ~
x=0
..y=
..z=
... - Corner 1dx=750
..dy=
..dz=
... - Corner 2~ 121 ~
- Location of player, but atY
121
1.7-
The selector arguments dx
, dy
, and dz
did not exist pre-1.8.
-
-
-
Suggestion: Combine this answer with an appropriately configured world border so that players cannot escape the finite area where they are intended to be.– KevinDec 2, 2020 at 6:35