added selector that helps with selecting which biome to generate.
Untested.
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package ca.recrown.islandsurvivalcraft.worldgen;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Random;
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import java.util.Map.Entry;
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import org.bukkit.block.Biome;
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import ca.recrown.islandsurvivalcraft.Utilities;
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public class BiomeSelector {
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private boolean initialized = false;
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private final Random random;
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private final HashMap<Biome, Float> lands;
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private HashMap<Float, ArrayList<Biome>> temperaturesForLand;
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private final HashMap<Float, ArrayList<Biome>> temperaturePartitionedLandBiomes;
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private final HashMap<Biome, Float> oceans;
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private HashMap<Float, ArrayList<Biome>> temperaturesForOcean;
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private final HashMap<Float, ArrayList<Biome>> temperaturePartitionedOceanBiomes;
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public BiomeSelector(Random random) {
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this.random = random;
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lands = new HashMap<>();
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oceans = new HashMap<>();
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temperaturePartitionedLandBiomes = new HashMap<>();
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temperaturePartitionedLandBiomes.put(0.05f, new ArrayList<>());
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temperaturePartitionedLandBiomes.put(0.30f, new ArrayList<>());
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temperaturePartitionedLandBiomes.put(0.95f, new ArrayList<>());
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temperaturePartitionedLandBiomes.put(2f, new ArrayList<>());
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temperaturePartitionedOceanBiomes = new HashMap<>();
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temperaturePartitionedOceanBiomes.put(0.00f, new ArrayList<>());
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temperaturePartitionedOceanBiomes.put(0.5f, new ArrayList<>());
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}
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public void initialize() {
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if (initialized) throw new IllegalStateException("Biome selector is already initialized.");
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initialized = true;
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registerLandBiomeTemperatures();
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registerOceanBiomeTemperatures();
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}
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private void registerLandBiomeTemperatures() {
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lands.put(Biome.SNOWY_TUNDRA, 0.0f);
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lands.put(Biome.ICE_SPIKES, 0.0f);
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lands.put(Biome.SNOWY_TAIGA, -0.5f);
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lands.put(Biome.SNOWY_TAIGA_MOUNTAINS, -0.5f);
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lands.put(Biome.MOUNTAINS, 0.2f);
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lands.put(Biome.GRAVELLY_MOUNTAINS, 0.2f);
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lands.put(Biome.WOODED_MOUNTAINS, 0.2f);
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lands.put(Biome.MODIFIED_GRAVELLY_MOUNTAINS, 0.2f);
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lands.put(Biome.TAIGA, 0.25f);
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lands.put(Biome.TAIGA_MOUNTAINS, 0.25f);
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lands.put(Biome.GIANT_TREE_TAIGA, 0.3f);
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lands.put(Biome.PLAINS, 0.8f);
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lands.put(Biome.SUNFLOWER_PLAINS, 0.8f);
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lands.put(Biome.FOREST, 0.7f);
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lands.put(Biome.FLOWER_FOREST, 0.7f);
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lands.put(Biome.BIRCH_FOREST, 0.6f);
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lands.put(Biome.TALL_BIRCH_FOREST, 0.7f);
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lands.put(Biome.DARK_FOREST, 0.7f);
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lands.put(Biome.SWAMP, 0.8f);
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lands.put(Biome.JUNGLE, 0.95f);
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lands.put(Biome.MODIFIED_JUNGLE, 0.95f);
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lands.put(Biome.BAMBOO_JUNGLE, 0.95f);
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lands.put(Biome.MUSHROOM_FIELDS, 0.9f);
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lands.put(Biome.DESERT, 2.0f);
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lands.put(Biome.SAVANNA, 1.2f);
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lands.put(Biome.SHATTERED_SAVANNA, 1.1f);
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lands.put(Biome.BADLANDS, 2.0f);
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lands.put(Biome.ERODED_BADLANDS, 2.0f);
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lands.put(Biome.WOODED_BADLANDS_PLATEAU, 2.0f);
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lands.put(Biome.MODIFIED_WOODED_BADLANDS_PLATEAU, 2.0f);
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lands.put(Biome.SAVANNA_PLATEAU, 1.0f);
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lands.put(Biome.BADLANDS_PLATEAU, 2.0f);
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lands.put(Biome.MODIFIED_BADLANDS_PLATEAU, 2.0f);
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lands.put(Biome.SHATTERED_SAVANNA_PLATEAU, 1.0f);
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temperaturesForLand = Utilities.invertHashMap(lands);
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for (Entry<Float, ArrayList<Biome>> entry : temperaturesForLand.entrySet()) {
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if (entry.getKey() <= 0.05f) {
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temperaturePartitionedLandBiomes.get(0.05f).addAll(entry.getValue());
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} else if (entry.getKey() <= 0.3) {
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temperaturePartitionedLandBiomes.get(0.3f).addAll(entry.getValue());
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} else if (entry.getKey() <= 0.85f) {
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temperaturePartitionedLandBiomes.get(0.95f).addAll(entry.getValue());
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} else {
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temperaturePartitionedLandBiomes.get(2.00f).addAll(entry.getValue());
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}
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}
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}
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private void registerOceanBiomeTemperatures() {
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oceans.put(Biome.WARM_OCEAN, 0.5f);
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oceans.put(Biome.LUKEWARM_OCEAN, 0.5f);
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oceans.put(Biome.DEEP_LUKEWARM_OCEAN, 0.5f);
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oceans.put(Biome.OCEAN, 0.5f);
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oceans.put(Biome.DEEP_OCEAN, 0.5f);
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oceans.put(Biome.COLD_OCEAN, 0.5f);
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oceans.put(Biome.DEEP_COLD_OCEAN, 0.5f);
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oceans.put(Biome.FROZEN_OCEAN, 0f);
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oceans.put(Biome.DEEP_FROZEN_OCEAN, 0.5f);
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temperaturesForOcean = Utilities.invertHashMap(oceans);
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for (Entry<Float, ArrayList<Biome>> entry : temperaturesForOcean.entrySet()) {
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if (entry.getKey() <= 0.00f) {
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temperaturePartitionedOceanBiomes.get(0.0f).addAll(entry.getValue());
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} else {
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temperaturePartitionedOceanBiomes.get(0.5f).addAll(entry.getValue());
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}
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}
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}
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public float getBiomeTemperature(Biome biome) {
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String biomeName = biome.name().toLowerCase();
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if (biomeName.endsWith("hills") || biomeName.endsWith("beach") || biomeName.endsWith("shore")) {
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String biomeTypeName = biomeName;
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biomeTypeName = biomeTypeName.replace("hills", "");
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biomeTypeName = biomeTypeName.replace("beach", "");
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biomeTypeName = biomeTypeName.replace("shore", "");
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biomeTypeName = biomeTypeName.substring(0, biomeTypeName.length() - 2);
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for (Entry<Biome, Float> entry : lands.entrySet()) {
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if (entry.getKey().name().startsWith(biomeTypeName)) {
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return entry.getValue();
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}
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}
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}
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return lands.get(biome);
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}
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public Biome getTransitionBiome(Biome from) {
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String biomeName = from.name().toLowerCase();
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if (biomeName.contains("jungle")) {
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if (biomeName.contains("modified")) {
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return Biome.MODIFIED_JUNGLE_EDGE;
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}
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return Biome.JUNGLE_EDGE;
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} else if (biomeName.contains("mountain")) {
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return Biome.MOUNTAIN_EDGE;
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}
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return null;
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}
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public Biome getShoreBiome(Biome from, float temperature) {
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String biomeName = from.name().toLowerCase();
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if (biomeName.contains("mushroom")) {
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return Biome.MUSHROOM_FIELD_SHORE;
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} else if (biomeName.contains("mountains")) {
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return Biome.STONE_SHORE;
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}
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if (temperature >= 0.8) {
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return Biome.BEACH;
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}
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return Biome.SNOWY_BEACH;
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}
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public Biome getLandBiome(float temperature) {
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ArrayList<Biome> biomes = null;
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if (temperature <= 0.05f) {
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biomes = temperaturePartitionedLandBiomes.get(0.05f);
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} else if (temperature <= 0.3) {
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biomes = temperaturePartitionedLandBiomes.get(0.3f);
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} else if (temperature <= 0.85f) {
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biomes = temperaturePartitionedLandBiomes.get(0.95f);
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} else {
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biomes = temperaturePartitionedLandBiomes.get(2.00f);
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}
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return biomes.get((int) random.nextFloat() * biomes.size());
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}
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public Biome getOceanBiome(float temperature) {
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ArrayList<Biome> biomes = null;
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if (temperature <= 0.00f) {
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biomes = temperaturePartitionedOceanBiomes.get(0.0f);
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} else {
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biomes = temperaturePartitionedOceanBiomes.get(0.5f);
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}
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return biomes.get((int) random.nextFloat() * biomes.size());
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}
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}
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