Solved Adding Entry to YAML File

I am developing a plugin that, when given a set of coordinates, looks at each block inbetween the coordinates, checks if it is a block of red wool or blue wool, and if so, puts the x value of that block in a config file under the "blocks.redwool" or "blocks.bluewool" path. I can't seem to figure out how to add a "-" value (whatever they are called) to the YAML file for each registered block so that it looks something like this:

Code:

blocks:
  redwool:
    -5
    -8
  bluewool:
    -2
    -9

Right now, it looks like this:

Code:

blocks:
  redwool:
  bluewool:

Sorry for formatting. I am aware that two spaces are required for each level!

Thanks!
SmearySubset

 

@timtower How would I add each entry to the file though?

 

@timtower my plugin is going to be iterating through thousands of blocks so that would mean the list would have hundreds of different locations, which would use up a ton of memory. Is there a way to upload each location individually to the config file as soon as its registered instead of putting it in a list first?

 

Okay, thanks. I think I got it.