package net.glowstone.generator.decorators;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import org.bukkit.Chunk;
import org.bukkit.GrassSpecies;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.Biome;
import org.bukkit.block.BlockState;
import org.bukkit.material.LongGrass;
public class TallGrassDecorator extends BlockDecorator {
private final Map<Biome, Double> biomesFernDensity = new HashMap<Biome, Double>();
public final TallGrassDecorator setFernDensity(double fernDensity, Biome... biomes) {
for (Biome biome : biomes) {
biomesFernDensity.put(biome, fernDensity);
}
return this;
}
@Override
public void decorate(World world, Random random, Chunk source) {
int sourceX = (source.getX() << 4) + random.nextInt(16);
int sourceZ = (source.getZ() << 4) + random.nextInt(16);
int sourceY = random.nextInt(world.getHighestBlockYAt(sourceX, sourceZ) << 1);
while ((world.getBlockAt(sourceX, sourceY, sourceZ).getType() == Material.AIR ||
world.getBlockAt(sourceX, sourceY, sourceZ).getType() == Material.LEAVES) &&
sourceY > 0) {
sourceY--;
}
// the grass species can change on each decoration pass
GrassSpecies species = GrassSpecies.NORMAL;
final Biome biome = world.getBiome(sourceX, sourceZ);
if (biomesFernDensity.containsKey(biome)) {
double density = biomesFernDensity.get(biome);
if (random.nextFloat() < density) {
species = GrassSpecies.FERN_LIKE;
}
}
final LongGrass grass = new LongGrass(species);
for (int i = 0; i < 128; i++) {
int x = sourceX + random.nextInt(8) - random.nextInt(8);
int z = sourceZ + random.nextInt(8) - random.nextInt(8);
int y = sourceY + random.nextInt(4) - random.nextInt(4);
if (y < 255 && world.getBlockAt(x, y, z).getType() == Material.AIR &&
(world.getBlockAt(x, y - 1, z).getType() == Material.GRASS ||
world.getBlockAt(x, y - 1, z).getType() == Material.DIRT)) {
final BlockState state = world.getBlockAt(x, y, z).getState();
state.setType(Material.LONG_GRASS);
state.setData(grass);
state.update(true);
}
}
}
}