//Fills the column with air spaces to make caves
IEnumerator generateCaves(ChunkColumn column)
{
//Get the biome of the column
Biome biome = column.getBiome();
//Get the coordinates af the column
int x = column.getLocation().getBlockX();
int z = column.getLocation().getBlockZ();
//Get the highest block's z coordinate
int blockHeight = column.getHighestRenderableBlock().getBlockY();
//Get the cave size and frequency from the biome
int caveSize = biome.getCaveSize();
float caveFrequency = biome.getCaveFrequency();
//Create a noise generator that represents the probability of getting a cave as the caveFrequency as a percent
NoiseGenerator noiseGenerator = new NoiseGenerator(caveFrequency, 100);
//Iterate over all solid blocks in the column
for (int y = 0; y < blockHeight + 1; y++)
{
//Get the probability of having a cave at this coordinate
int caveChance = noiseGenerator.generateNoise(x, y, z);
//If the cave chance is within the likely hood of generating a cave
if (caveChance < caveSize)
{
Location airLocation = new Location(getWorld(), x, y, z);
column.setBlock(y, new Air(airLocation));
}
yield return(null);
}
column.recalculateRendering();
}
//This function fills the given chunk column with blocks based off of generation data found in the biome
IEnumerator populateColumn(ChunkColumn column)
{
//Get the biome of the column
Biome biome = column.getBiome();
//Get the x and y coordinates from the chunk column's location
Location columnLocation = column.getLocation();
int x = columnLocation.getBlockX();
int z = columnLocation.getBlockZ();
//Keep a tally of how high we are getting
int currentHeight = 0;
//Iterate over all the block types to be generated for in the biome
foreach (BlockType blockType in biome.getBlockTypes())
{
//Get all the genr=erationData for the given blocktype found in the biome
GeneratorData[] blockGeneratorData = biome.getBlockGenerationData(blockType);
//Iterate over all this generation data
foreach (GeneratorData generatorData in blockGeneratorData)
{
//Initially add the minimum amount of the block that can occur to the current max height
int blockHeight = currentHeight + generatorData.getBlockBaseHeight();
//Get the noise value (reciprocal of valley width) for this block
float blockNoise = generatorData.getBlockNoise();
//Get the max height for the noise
int blockBaseNoiseHeight = generatorData.getBlockNoiseHeight();
//Generate block noise for this block type at the given coordinate using the values from generator Data
int noise = NoiseGenerator.generateNoise(x, 0, z, blockNoise, blockBaseNoiseHeight);
//Add the noise to the height of the terrain for this block
blockHeight += noise;
//Limit the height of the blocks reached to the map height limit
if (blockHeight > ChunkColumn.blockMapHeight)
{
blockHeight = ChunkColumn.blockMapHeight;
}
//Iterate over the new amount of blocks generated, and set the blocks at that position in the
//column to be this block
for (int y = currentHeight; y < blockHeight; y++)
{
Location blockLocation = new Location(getWorld(), x, y, z);
column.setBlock(y, blockType.getBlock(blockLocation));
}
//Set the current total height to include the new blocks generated
currentHeight = blockHeight;
yield return(null);
}
}
column.recalculateRendering();
}
