Perlin Noise
You need to be capable of question the Perlin noise with some 2D coordinates.
If you’re utilizing this Peril: noise::Perlin, then you may name get with a Point2. If you’re utilizing this Perlin: perlin_rust::PerlinNoise then you may name perlin2 with x and y values. Most Perlin implementations have a technique to do it.
So you may question for the coordinates of a given place on the tilemap, and from the end result determine what will probably be there in that tile, and add it to the tilemap knowledge. You try this for each tile you wish to generate. You’ll, in fact, have some logic to determine whether it is water or not, and so forth, primarily based on the end result kind the perlin noise.
Presumably the contents of a tile don’t come from a single variable. Think about using an additional dimension so you may question the perlin noise on the similar 2D coordinantes of the tile, however at totally different positions alongside the additional dimension. So you’ve gotten a number of values you should use to determine what’s within the tile. For instance, one might be elevation, one other might be vegetation, one other might be temperature, and so forth.
Storing to file
If you’re not going to control the tilemap, then storing the seed for the perlin noise is sufficient to retailer the tilemap. As a result of it ought to generate the identical approach from the identical seed.
Thus, if it is advisable serialize the tilemap, I presume that both you want it in a selected format for an additional software program to learn, or you’ll manipulate it additional after you generated it from perlin noise. For instance, you is perhaps choosing spawn factors or producing constructions. Understand that this will likely not solely require modifying the tiles, but in addition including metadata to the tiles, which you’d additionally must serialize.
Maybe serializing the tilemap requires no manipulation in any respect, and you’ll merely write the reminiscence illustration to a file.
In any other case, maybe you wish to begin with some header with the tilemap dimension at first of the file. So you can begin including that to the information that you’ll write. Though in case you are going for human readable maybe you merely use newlines. I am attempting to point out you different situations of how the serialization may go.
Then now we have the identical query for the person tiles. If the reminiscence illustration of the tile is similar because the file illustration, you may simply copy them to the information you’ll write.
In any other case, you have to to iterate over every tile, determine how the tile will probably be represented within the file, and including that to the information you’ll write.
And that’s assuming right here that it will likely be saved as a single compact blob. Nevertheless, it’s possible you’ll wish to break it into chunks, or have another construction that helps to question close by tiles for a given place. After which could need to additionally retailer an index for that construction. Sure, I am saying it’s possible you’ll wish to serialize with that construction, so you do not have to expend further time producing it once you load the tilemap.
Then you may manipulate the information you’ll write, for instance it’s possible you’ll wish to compress it. And eventually write it to a file.
Storing to file doesn’t need to cope with perlin noise. Nevertheless, if writing on to file is a requirement, you may have a single loop that queries the perlin noise, decides what the tile will probably be, and the way it’s encoded, and writes it to file. Then you would need to learn it to show it. And I remind that this could suggest you aren’t manipulating the tilemap after you generated it from the perlin noise, so you may be writing the seed as a substitute, until you want the tilemap in some explicit format.
In any other case, it’s possible you’ll wish to show the end result with out storing it to file, and for that you simply higher have a illustration of the tilemap knowledge in reminiscence which you’ll both serialize to a file, or show, or no matter.
