Difference between revisions of "Terrain generation"
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== Biomes == | == Biomes == | ||
| − | Biomes in AAGRINDER have a different meaning than in most games. We can not give a list of existing biomes, because there are an unlimited number of possible biomes. There are a bunch of biome parameters for generating terrain, such as tree count, tree height, amount of leaves, amount of grass, length of vines, amount of diamonds etc. Altogether there are over a dozen of such parameters. Each parameter gradually changes through the world, and they all change independently from each other. Because of this, it is possible to find any combination of biome parameters, and there are no sharp borders between the biomes. | + | Biomes in AAGRINDER have a different meaning than in most games. We can not give a list of existing biomes, because there are an unlimited number of possible biomes. There are a bunch of biome parameters for generating terrain, such as tree count, tree height, amount of leaves, amount of grass, length of vines, amount of diamonds, etc. Altogether there are over a dozen of such parameters. Each parameter gradually changes through the world, and they all change independently from each other. Because of this, it is possible to find any combination of biome parameters, and there are no sharp borders between the biomes. |
== Diamonds == | == Diamonds == | ||
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== Trees == | == Trees == | ||
| − | Trees are "structures" that can be either natural, or sapling-grown, though both of the types behave identically. They are composed of wood, leaves and sometimes vines, and farming them is a good way to get these resources. They can only grow on dirt, and the saplings can only be placed on dirt. | + | Trees are "structures" that can be either natural, or sapling-grown, though both of the types behave identically. They are composed of wood, leaves, and sometimes vines, and farming them is a good way to get these resources. They can only grow on dirt, and the saplings can only be placed on dirt. |
== Spawn area == | == Spawn area == | ||
| − | The [[spawn area]] is the only aspect of world generation that is not generated in the terrain generator component, but rather in the AAGRINDER server itself. It still uses the world seed, however, so it is deterministic just like terrain itself. After the spawn area is positioned randomly, it is checked for quality: if at least 50 positions in the 64 by 64 area around the center are valid spawn spots for players, the position for the spawn area is accepted. Otherwise, a new one is chosen. | + | The [[spawn area]] is the only aspect of world generation that is not generated in the terrain generator component, but rather in the AAGRINDER server itself. It still uses the world seed, however, so it is deterministic just like the terrain itself. After the spawn area is positioned randomly, it is checked for quality: if at least 50 positions in the 64 by 64 area around the center are valid spawn spots for players, the position for the spawn area is accepted. Otherwise, a new one is chosen. |
The range for choosing the spawn area is between -2048 and 2048 by the x and y coordinate. Because of [https://gitlab.com/MRAAGH/aagrinder/commit/f2ac2a3c4728683ff8d3f09075dbdf7a366ad3bc a bug], this range used to be between -3072 and 1024, which is why some of the older worlds might have the spawn point in strange places. | The range for choosing the spawn area is between -2048 and 2048 by the x and y coordinate. Because of [https://gitlab.com/MRAAGH/aagrinder/commit/f2ac2a3c4728683ff8d3f09075dbdf7a366ad3bc a bug], this range used to be between -3072 and 1024, which is why some of the older worlds might have the spawn point in strange places. | ||
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| + | == Special structures == | ||
| + | There are a couple of less common formations, such as portal temples, portal eyes, tentacle rocks (or just the tentacle biome(s) in general), and large boulders containing diamonds. | ||
Revision as of 00:29, 24 November 2021
This page explains all the aspects of the AAGRINDER terrain generator which don't require technical knowledge to be understood. For a more in-depth explanation, see AAGRINDER terrain generation (deep).
World seed
A world seed is a number which determines the generated world. Whenever random numbers are generated, they are based on the world seed. Because of this, generating two worlds with the same seed will result in two identical worlds. The world seed should be specified in the server settings. Alternatively, if using the CLI terrain generator directly, the world seed is specified as the last argument. See our list of world seeds.
Biomes
Biomes in AAGRINDER have a different meaning than in most games. We can not give a list of existing biomes, because there are an unlimited number of possible biomes. There are a bunch of biome parameters for generating terrain, such as tree count, tree height, amount of leaves, amount of grass, length of vines, amount of diamonds, etc. Altogether there are over a dozen of such parameters. Each parameter gradually changes through the world, and they all change independently from each other. Because of this, it is possible to find any combination of biome parameters, and there are no sharp borders between the biomes.
Diamonds
Diamonds can be generated in stone surfaces. The probability for diamonds is biome-specific, which means it gradually changes through the world. However, there is always a smaller probability of diamonds near a surface compared to deep inside a mountain; and there is a higher probability of diamonds on a floating island. The most diamonds that could possibly generate is one per 8 by 8 section.
Trees
Trees are "structures" that can be either natural, or sapling-grown, though both of the types behave identically. They are composed of wood, leaves, and sometimes vines, and farming them is a good way to get these resources. They can only grow on dirt, and the saplings can only be placed on dirt.
Spawn area
The spawn area is the only aspect of world generation that is not generated in the terrain generator component, but rather in the AAGRINDER server itself. It still uses the world seed, however, so it is deterministic just like the terrain itself. After the spawn area is positioned randomly, it is checked for quality: if at least 50 positions in the 64 by 64 area around the center are valid spawn spots for players, the position for the spawn area is accepted. Otherwise, a new one is chosen.
The range for choosing the spawn area is between -2048 and 2048 by the x and y coordinate. Because of a bug, this range used to be between -3072 and 1024, which is why some of the older worlds might have the spawn point in strange places.
Special structures
There are a couple of less common formations, such as portal temples, portal eyes, tentacle rocks (or just the tentacle biome(s) in general), and large boulders containing diamonds.
