koobas.hobune.stream
How do I quickly save a large number of variables?
I have a large number of variables (263,169 to be exact, what I am trying to save is the terrain heights), and every way I have tried saving them has not seemed to work because it takes way to long. Does anyone have an easy way of saving them? Thanks!
Convert the 2D array of floats to a 1D arrays of bytes, then use File.WriteAllBytes with that array. (That's what Fractscape does when saving the terrain heightmap, and it takes a fraction of a second to export a 513x513 terrain.)
Could you post the code? I dont know how I to convert the 2d array of floats to a 1D array of bytes, Thanks!
@logty: The code has some project-specific stuff in it, but the idea is that you convert the 0.0-1.0 float range to a 0-65535 integer range using Lerp, then with this number (call it "p"), do "p / 256" for the low byte and "p % 256" for the high byte.
Have you tried using an array?
I have tried arrays, but it didn't seem to work because I can't find a way of saving a 2d array (the terrain heights). Any ideas?
What are the different ways you have tried saving them? For that amount I'd suggest using a database engine of some sort.
So far I have tried using player prefs, with a huge (like 263,169 loops) for loop, but that takes ~10 $$anonymous$$utes I'd say. I have also tried using the SimpleDictionary on the Unity wiki but again the same problem. What sort of database engine do you mean?
When I mean a database engine I mean $$anonymous$$ySQL/SQL Lite etc. I assume since you are only storing terrain data on the local players computer, and not on a server somewhere, you'll be ok to talk directly to the database. Do a search on Unity answers/Google for using $$anonymous$$ySQL with Unity and you'll be good to go. Good luck :p
Most people tried some sort of image map and that seems to work fine. Have you tried saving the data as a simple image object? Do a search for terrain image map here in the forums. That might help.
Could you explain some? I looked around, but I am not sure how to make a simple image object.
Okay, I tried making my 2d array into a 1D array, and it seems to work, but where does it save my file? Here is the code, thanks!
import System.IO;
var TerrainD:Terrain;
function Start () {
var TD = TerrainD.terrainData;
var heights:float[,] = TD.GetHeights(0,0,512,512);
var BigArray = new byte[263169];
print(BigArray.length);
var Inte = 0;
for (var y : int = 0; y < 512; ++y) {
for (var x : int = 0; x < 512; ++x) {
BigArray[Inte] = Mathf.Round(Mathf.Lerp(0,65535,heights[y,x]));
Inte+=1;
}
}
print(Time.time);
// Apply all SetPixel calls
File.WriteAllBytes( "/Hello.ini", BigArray);
}
To be more exact, where is it saving Hello.ini? Also, the code doesn't seem to be working because it doesn't seem to be creating a file.
Right now it seems it will save it to whatever location the program is using, so scour your unity folder or use the windows build in searcher.
Try file.wri$$anonymous$$llbytes("C:\\Hello.ini", BigArray);
It will save it to your C:\ Drive. Note that two \\'s are required as the first one opens a special character generator (meaning it's how you can do "\"I like you\"" to get a text or string to go "I like you".
