So we set up our RNG to create a number between 0 and 20. That means we have a needed range of 10 - (-10) =. Let's suppose for an example that we're trying to get a score between min=-10 and max=10. Max-min = needed range, so to get from the result to the desired range we can simply do result + min = needed range. The answer is very simple: you just shift the result up or down by applying an addition or substraction. But what if you need a random number between 5 and 15? what about -10 and 10? Many of the generators above have a range that only covers positive numbers, reaching from 0 up to X. Then to get a "random" number you just take whatever number this running score happens to be on at that moment. How it works is you basically count up a scoreboard from the minimum to the maximum random number, incrementing by one per tick and resetting it to the minimum once you reached the maximum. It relies on time to get a random number, so this is not applicable for when random numbers are needed in predefined time lengths (X amount of ticks, maybe even the same tick) and it is advised not to use this, as there are much better alternatives. 7: running scoreĪ very primitive way to get somewhat random numbers but probably the easiest one. Since spreadplayers does load the chunk the entity is placed in briefly, it may work when using a function or chained commands, but this method of chunkloading has been quite unreliable in the past. This only works reliably in loaded chunks. Seems to have a bias agains the edges of the area, so make the spreadplayers area in the command bigger than the actual possible spawning spaces.Ī different way to use the spreadplayers randomisation is to data get the position the entity ends up on. Depending on where it lands you could have a commandblock below triggered for it to then run the desired commands. 6: spreadplayersĮffective Range: (theoretically 900'000'000'000'000 if you're using every single block in a minecraft world as a position, practically even 100 is a stretch)Īnother Minecraft-included way for randomisation is /spreadplayers, which will position an entity randomly over a predefined area. as long as it's below 10 this is still doable, anything above does get tedious. This has the obvious disadvantage, that you'll need one entity per possible score. 5: Range: (theoretically infinite, but practically anything above 10 is not worth it)īefore we got the (arguably much better) solutions above, we could use minecrafts to select a random entity, which we would've each given their respective scoreboard score (or put the commandblock to be triggered below them or something similar). It's very much deprecated now though, thanks to Number 2 in this list. 4: item rotationĪ way to get a random number before 1.13 in the range of up to 360 numbers was to summon an entity like a squid, kill it and check the rotation of the inksac item entity it just dropped, since that rotation is always random. Use only for smaller amounts of values and if methods 1 and 2 don't work for you. The third best option, with a small effective range. run loot spawn ~ ~ ~ loot example:random_loot_table Use only if Method 1 doesn't work for you or if you need a specifc player to always get the same random number (their uuid doesn't change). More taxing on the server due to it's creation and removal of entities as well as NBT access, so better limit its use as much as possible. Scoreboard players operation random %= range 1/10 chance like this: Įxecute store result score random run data get entity UUID 1 A simple predicate can be used to run something with an e.g. Have something happen with a random chanceįor this special case, you don't need any of the random number methods, thanks to 1.15's predicates. the first two are arguably the best as they have the least limitations and require the least work to set up. There are many ways to get a random number in minecraft.
This likely won't affect your contraption, but it's important to point out.
#Minecraft random teleport command generator#
They will be refered to "random" generator for simplicity. They are all only "pseudo"-random (which means they only feel like they are random to a human, but are using some form of deterministic algorithm behind the scenes) because that's how computers work. In Bedrock, you can just use scoreboard players random to get a random number into your scoreboard and don't need to go through all this hassle.ĭisclaimer: None of these numbers are truly random.
This article talks about the Java Edition of the game. Have something happen with a random chance.
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