Can I make my world a seed?
When I look my world has a seed, although I didn't start it with a seed.
When I give my son that seed he can't see my buildings.
How can I let him load up my world on his iPad?
Best Answer
'Seed' is a programming term. In Minecraft, the 'Seed' is the starting number that is fed into the algorithm that's used in generating the world. If you do not enter a seed when creating a new world, Minecraft will generate a random number to use as the seed. However, if you enter the seed of your world when creating another new world, that seed is then fed into the algorithm and then the terrain, villages, dungeons, ores, etc are all going to be exactly the same as WHEN YOUR WORLD WAS CREATED.
In other words, what you do to the world AFTER its first created (your buildings etc) has nothing to do with the seed.
Also, not all platforms that Minecraft is on can share seeds, nor will they generate the same worlds. Seeds for the PC version won't generate the same world on a Xbox due to the console versions being a very old version of Minecraft compared to the PC. I don't know about iOS but I doubt it would generate the same world either. Seeds can be shared between PS3 and Xbox 360 and between PS4 and Xbox One. The PE version of Minecraft has an entirely different algorithm compared to PC or consoles from what I understand.
If your goal is to let him have your world as it is after you have modified it by playing the game, well that depends on what version of Minecraft you created it in and what version you are playing it in as to whether its even possible. I think @Faquarl covered that aspect well.
Pictures about "Can I make my world a seed?"
How do you turn a Minecraft world into a seed?
To get started building your world, go to the Create New World screen, click More World Options, and select World type. If you have a seed for new worlds, select Infinity. Then, type the seed code in the Seed for the World Generator, select the game mode, and click Create New World.How do I create a world seed?
How to change your server seedEurythmics, Annie Lennox, Dave Stewart - Sweet Dreams (Are Made Of This) (Official Video)
More answers regarding can I make my world a seed?
Answer 2
As it is said in the comments, the seed is just the starting point. The same seed only means what your son has the same world as you when you started. You can see more about it here:
So the thing you want is importing your save to his iPad. And it is a problem if you don't have the same game version. You can see about PC-iOS for example here:
But it seems to be possible between PC/MAC and XBOX (both ways).
It is also possible between pocket versions (iPad, Android & cie).
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Ryutaro Tsukata, ANTONI SHKRABA, Oleksandr Pidvalnyi, Towfiqu barbhuiya