package org.bukkit;
import java.util.Random;
import org.bukkit.command.CommandSender;
import org.bukkit.generator.ChunkGenerator;
import org.bukkit.plugin.Plugin;
/**
* Represents various types of options that may be used to create a world.
*/
public class WorldCreator {
private final String name;
private long seed;
private World.Environment environment = World.Environment.NORMAL;
private ChunkGenerator generator = null;
private WorldType type = WorldType.NORMAL;
private boolean generateStructures = true;
/**
* Creates an empty WorldCreationOptions for the given world name
*
* @param name Name of the world that will be created
*/
public WorldCreator(String name) {
if (name == null) {
throw new IllegalArgumentException("World name cannot be null");
}
this.name = name;
this.seed = (new Random()).nextLong();
}
/**
* Copies the options from the specified world
*
* @param world World to copy options from
* @return This object, for chaining
*/
public WorldCreator copy(World world) {
if (world == null) {
throw new IllegalArgumentException("World cannot be null");
}
seed = world.getSeed();
environment = world.getEnvironment();
generator = world.getGenerator();
return this;
}
/**
* Copies the options from the specified {@link WorldCreator}
*
* @param creator World creator to copy options from
* @return This object, for chaining
*/
public WorldCreator copy(WorldCreator creator) {
if (creator == null) {
throw new IllegalArgumentException("Creator cannot be null");
}
seed = creator.seed();
environment = creator.environment();
generator = creator.generator();
return this;
}
/**
* Gets the name of the world that is to be loaded or created.
*
* @return World name
*/
public String name() {
return name;
}
/**
* Gets the seed that will be used to create this world
*
* @return World seed
*/
public long seed() {
return seed;
}
/**
* Sets the seed that will be used to create this world
*
* @param seed World seed
* @return This object, for chaining
*/
public WorldCreator seed(long seed) {
this.seed = seed;
return this;
}
/**
* Gets the environment that will be used to create or load the world
*
* @return World environment
*/
public World.Environment environment() {
return environment;
}
/**
* Sets the environment that will be used to create or load the world
*
* @param env World environment
* @return This object, for chaining
*/
public WorldCreator environment(World.Environment env) {
this.environment = env;
return this;
}
/**
* Gets the type of the world that will be created or loaded
*
* @return World type
*/
public WorldType type() {
return type;
}
/**
* Sets the type of the world that will be created or loaded
*
* @param type World type
* @return This object, for chaining
*/
public WorldCreator type(WorldType type) {
this.type = type;
return this;
}
/**
* Gets the generator that will be used to create or load the world.
* <p>
* This may be null, in which case the "natural" generator for this
* environment will be used.
*
* @return Chunk generator
*/
public ChunkGenerator generator() {
return generator;
}
/**
* Sets the generator that will be used to create or load the world.
* <p>
* This may be null, in which case the "natural" generator for this
* environment will be used.
*
* @param generator Chunk generator
* @return This object, for chaining
*/
public WorldCreator generator(ChunkGenerator generator) {
this.generator = generator;
return this;
}
/**
* Sets the generator that will be used to create or load the world.
* <p>
* This may be null, in which case the "natural" generator for this
* environment will be used.
* <p>
* If the generator cannot be found for the given name, the natural
* environment generator will be used instead and a warning will be
* printed to the console.
*
* @param generator Name of the generator to use, in "plugin:id" notation
* @return This object, for chaining
*/
public WorldCreator generator(String generator) {
this.generator = getGeneratorForName(name, generator, Bukkit.getConsoleSender());
return this;
}
/**
* Sets the generator that will be used to create or load the world.
* <p>
* This may be null, in which case the "natural" generator for this
* environment will be used.
* <p>
* If the generator cannot be found for the given name, the natural
* environment generator will be used instead and a warning will be
* printed to the specified output
*
* @param generator Name of the generator to use, in "plugin:id" notation
* @param output {@link CommandSender} that will receive any error
* messages
* @return This object, for chaining
*/
public WorldCreator generator(String generator, CommandSender output) {
this.generator = getGeneratorForName(name, generator, output);
return this;
}
/**
* Sets whether or not worlds created or loaded with this creator will
* have structures.
*
* @param generate Whether to generate structures
* @return This object, for chaining
*/
public WorldCreator generateStructures(boolean generate) {
this.generateStructures = generate;
return this;
}
/**
* Gets whether or not structures will be generated in the world.
*
* @return True if structures will be generated
*/
public boolean generateStructures() {
return generateStructures;
}
/**
* Creates a world with the specified options.
* <p>
* If the world already exists, it will be loaded from disk and some
* options may be ignored.
*
* @return Newly created or loaded world
*/
public World createWorld() {
return Bukkit.createWorld(this);
}
/**
* Creates a new {@link WorldCreator} for the given world name
*
* @param name Name of the world to load or create
* @return Resulting WorldCreator
*/
public static WorldCreator name(String name) {
return new WorldCreator(name);
}
/**
* Attempts to get the {@link ChunkGenerator} with the given name.
* <p>
* If the generator is not found, null will be returned and a message will
* be printed to the specified {@link CommandSender} explaining why.
* <p>
* The name must be in the "plugin:id" notation, or optionally just
* "plugin", where "plugin" is the safe-name of a plugin and "id" is an
* optional unique identifier for the generator you wish to request from
* the plugin.
*
* @param world Name of the world this will be used for
* @param name Name of the generator to retrieve
* @param output Where to output if errors are present
* @return Resulting generator, or null
*/
public static ChunkGenerator getGeneratorForName(String world, String name, CommandSender output) {
ChunkGenerator result = null;
if (world == null) {
throw new IllegalArgumentException("World name must be specified");
}
if (output == null) {
output = Bukkit.getConsoleSender();
}
if (name != null) {
String[] split = name.split(":", 2);
String id = (split.length > 1) ? split[1] : null;
Plugin plugin = Bukkit.getPluginManager().getPlugin(split[0]);
if (plugin == null) {
output.sendMessage("Could not set generator for world '" + world + "': Plugin '" + split[0] + "' does not exist");
} else if (!plugin.isEnabled()) {
output.sendMessage("Could not set generator for world '" + world + "': Plugin '" + plugin.getDescription().getFullName() + "' is not enabled");
} else {
result = plugin.getDefaultWorldGenerator(world, id);
}
}
return result;
}
}