minecraft-src/net/minecraft/world/level/LevelSettings.java

package net.minecraft.world.level;

import com.mojang.serialization.Dynamic;
import net.minecraft.world.Difficulty;

public final class LevelSettings {
	private final String levelName;
	private final GameType gameType;
	private final boolean hardcore;
	private final Difficulty difficulty;
	private final boolean allowCommands;
	private final GameRules gameRules;
	private final WorldDataConfiguration dataConfiguration;

	public LevelSettings(
		String levelName,
		GameType gameType,
		boolean hardcore,
		Difficulty difficulty,
		boolean allowCommands,
		GameRules gameRules,
		WorldDataConfiguration dataConfiguration
	) {
		this.levelName = levelName;
		this.gameType = gameType;
		this.hardcore = hardcore;
		this.difficulty = difficulty;
		this.allowCommands = allowCommands;
		this.gameRules = gameRules;
		this.dataConfiguration = dataConfiguration;
	}

	public static LevelSettings parse(Dynamic<?> levelData, WorldDataConfiguration dataConfiguration) {
		GameType gameType = GameType.byId(levelData.get("GameType").asInt(0));
		return new LevelSettings(
			levelData.get("LevelName").asString(""),
			gameType,
			levelData.get("hardcore").asBoolean(false),
			(Difficulty)levelData.get("Difficulty").asNumber().map(number -> Difficulty.byId(number.byteValue())).result().orElse(Difficulty.NORMAL),
			levelData.get("allowCommands").asBoolean(gameType == GameType.CREATIVE),
			new GameRules(dataConfiguration.enabledFeatures(), levelData.get("GameRules")),
			dataConfiguration
		);
	}

	public String levelName() {
		return this.levelName;
	}

	public GameType gameType() {
		return this.gameType;
	}

	public boolean hardcore() {
		return this.hardcore;
	}

	public Difficulty difficulty() {
		return this.difficulty;
	}

	public boolean allowCommands() {
		return this.allowCommands;
	}

	public GameRules gameRules() {
		return this.gameRules;
	}

	public WorldDataConfiguration getDataConfiguration() {
		return this.dataConfiguration;
	}

	public LevelSettings withGameType(GameType gameType) {
		return new LevelSettings(this.levelName, gameType, this.hardcore, this.difficulty, this.allowCommands, this.gameRules, this.dataConfiguration);
	}

	public LevelSettings withDifficulty(Difficulty difficulty) {
		return new LevelSettings(this.levelName, this.gameType, this.hardcore, difficulty, this.allowCommands, this.gameRules, this.dataConfiguration);
	}

	public LevelSettings withDataConfiguration(WorldDataConfiguration dataConfiguration) {
		return new LevelSettings(this.levelName, this.gameType, this.hardcore, this.difficulty, this.allowCommands, this.gameRules, dataConfiguration);
	}

	public LevelSettings copy() {
		return new LevelSettings(
			this.levelName,
			this.gameType,
			this.hardcore,
			this.difficulty,
			this.allowCommands,
			this.gameRules.copy(this.dataConfiguration.enabledFeatures()),
			this.dataConfiguration
		);
	}
}