From MovieTriggers

2. As soon as the center is set, you can now specify the dimensions of the world border using the command /worldborder set . For instance /worldborder set 20 5 will resize the current border measurement to 20 within 5 seconds. Adjusts (enhance or decrease) the world border to the given dimension within the provided time, in seconds. Sets the quantity of injury () a player receives each second they're exterior the world border. Sets because the number of blocks from the world border that a player starts to take injury. For instance /worldborder damage buffer 5 will trigger gamers to take injury once they're greater than 5 blocks outdoors of the border. 1. Specify the middle of your world border through the use of the command /worldborder middle , changing and along with your X and Z coordinates. 1. In-sport, kind in the command /op , replacing with the Minecraft username of the participant you need to make an operator. For this example, we are going to give OP to a participant named Steve. For example, doing /worldborder set 20 will change the diameter or distance from one finish of the border to the other finish to 20 blocks. While redstone builds and water or lava stream are unaffected, inserting of blocks and liquids exterior of the border could also be restricted if at all possible.

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