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Seed

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Minecraft seeds Os valores são constituídos de caracteres (incluindo números), ou apenas um caractere, que é usado como base para a geração de cada mundo do Minecraft.[1]

Geração de Mundos[editar | editar código-fonte]

Sempre que o jogo for gerar um novo mundo, ele solicitará um algorítimo. Este algoritmo irá produzir um valor pseudo-aleatório que é então utilizado para determinar como o mundo parece. However, the algorithm will always end up with the same value if the starting point (seed) that the algorithm uses is the same number. This is why seeds exist-to easily generate entirely different worlds from a single value.

Whenever the world generation algorithm is updated, the same seed will no longer generate the same terrain. This is why in some different versions of the game, the same seed will not give the same world.

A world's seed is set when that world is created. By default, it is decided automatically (if so, the game uses the system time as the seed), but it can also be set manually. Set and reuse a seed to replay that world, or use a known seed to play the same world as another player. Either a number or a word/phrase can be used, including negatives. If a word/phrase is used it will be converted into a number.

If the seed or generator changes in a saved world, new chunks will be based on the new seed, and will not match those from the old seed (this phenomenon was widely observed with the Adventure Update). Deleted chunks can regenerate if the seed and generator remains the same, but will change if either the seed or generator changes.

It is important to note that since seeds are simply random values read into an algorithm and not actually names of different worlds, using a certain seed will not necessarily result in a world with any relevance to the value of that seed. For instance, using a biome name as your seed will not necessarily result in the creation of a world with primarily that biome.

Determinando a seed[editar | editar código-fonte]

Para descobrir a seed do mundo, o jogador deve inserir o comando /seed .

Técnica[editar | editar código-fonte]

The Java String.hashCode() function is used to generate a number seed if a word/phrase is used. This restricts Minecraft to a subset of the possible worlds (to 232 which is 4,294,967,296), due to the datatypes used. Use number seeds directly or let Minecraft generate the seed (it uses the system clock) to access the full set of possible worlds (264 which is 18,446,744,073,709,551,616). Multiplayer seeds may only have 248 possible values if randomly generated by Minecraft due to using http://docs.oracle.com/javase/7/docs/api/java/util/Random.html#nextLong%28%29 .

História[editar | editar código-fonte]

Pre-classic
rd-160052 Um simples gerador de mundos é adicionado.
Classic
0.0.12a Novo gerador de mundos.
0.24_06 Outro novo gerador de mundos.
Geração de mais penhascos.
i
December 25, 2009 Isometric level rendering screenshot added.
January 6, 2010 You can now selected island, floating, flat, or original as the level type when generating a world.
You can also select square, long, or deep as the level shape.
You can also select small, normal, or huge as the level size.
January 7, 2010 Deep floating maps now have layers of islands.
You can now select a level theme; normal or hell.
January 11, 2010 Islands now generate with more sand.
January 13, 2010 Oceans now generate with infinite water.
January 22, 2010 Water now spawns naturally above sea level and on floating islands.
Caves are now less flooded.
b
1.3 It is now possible to manually determine the seed.
1.8.1 The debug screen now displays the seed number.
r
1.2 Multiplayer servers will no longer send the seed to clients.
1.3.1 12w18a Due to singleplayer becoming multiplayer, the world's seed is no longer displayed on the debug screen.
12w21a Added /seed, which displays the current world seed.

Curiosidades[editar | editar código-fonte]

  • Seeds podem ser números positivos ou negativos
  • Você não precisa estar com os cheats ativados para vizualizar a seed do mundo
  • As seeds são sempre números inteiros
  • Se você criar um mundo com um nome específico, apague-o e em seguida crie outro mundo com o mesmo nome, mas com uma seed diferente, um bug pode ocorrer, fazendo com que os dois mundos se misturem, misturando chunks.

Um exemplo do bug onde dois mundos de mesmo nome se misturam.png

Links externos[editar | editar código-fonte]

Referências[editar | editar código-fonte]