tenkuma/SweetDreams
tenkuma/SweetDreams
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天クマ 2026-05-30 20:35:24 -03:00
commit dcff9c656d
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.gitattributes vendored Normal file
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#
# https://help.github.com/articles/dealing-with-line-endings/
#
# Linux start script should use lf
/gradlew text eol=lf
# These are Windows script files and should use crlf
*.bat text eol=crlf
# Binary files should be left untouched
*.jar binary

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# MacOS DS_Store files
.DS_Store
# Gradle cache folder
.gradle
# Gradle build folder
build
# IntelliJ
out/
.idea
*.iml
# mpeltonen/sbt-idea plugin
.idea_modules/
# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
hs_err_pid*
# Common working directory
run

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build.gradle.kts Normal file
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plugins {
id("java-library")
id("xyz.jpenilla.run-paper") version "3.0.2"
}
repositories {
mavenCentral()
maven("https://repo.papermc.io/repository/maven-public/")
}
dependencies {
compileOnly("io.papermc.paper:paper-api:1.21.11-R0.1-SNAPSHOT")
}
java {
toolchain.languageVersion = JavaLanguageVersion.of(21)
}
tasks {
runServer {
// Configure the Minecraft version for our task.
// This is the only required configuration besides applying the plugin.
// Your plugin's jar (or shadowJar if present) will be used automatically.
minecraftVersion("1.21.11")
jvmArgs("-Xms2G", "-Xmx2G")
}
processResources {
val props = mapOf("version" to version, "description" to project.description)
filesMatching("plugin.yml") {
expand(props)
}
}
}

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bin/
libs/
.idea/
.gradle/
build/
out/
# Ignore Gradle project-specific cache directory
.gradle
# Ignore Gradle build output directory
build
run/
*.log

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gradle.properties Normal file
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group=org.adrianvictor
version=1.0-SNAPSHOT
description=Take your players to the dreamland when sleeping!
org.gradle.configuration-cache=true
org.gradle.parallel=true
org.gradle.caching=true

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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-9.5.1-bin.zip
networkTimeout=10000
validateDistributionUrl=true
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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#!/bin/sh
#
# Copyright © 2015 the original authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/b631911858264c0b6e4d6603d677ff5218766cee/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
# This is normally unused
# shellcheck disable=SC2034
APP_BASE_NAME=${0##*/}
# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
if ! command -v java >/dev/null 2>&1
then
die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
# In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
# In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Collect all arguments for the java command:
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
# and any embedded shellness will be escaped.
# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
# treated as '${Hostname}' itself on the command line.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
"$@"
# Stop when "xargs" is not available.
if ! command -v xargs >/dev/null 2>&1
then
die "xargs is not available"
fi
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@rem SPDX-License-Identifier: Apache-2.0
@rem
@if "%DEBUG%"=="" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%"=="" set DIRNAME=.
@rem This is normally unused
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if %ERRORLEVEL% equ 0 goto execute
echo. 1>&2
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
echo. 1>&2
echo Please set the JAVA_HOME variable in your environment to match the 1>&2
echo location of your Java installation. 1>&2
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo. 1>&2
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
echo. 1>&2
echo Please set the JAVA_HOME variable in your environment to match the 1>&2
echo location of your Java installation. 1>&2
goto fail
:execute
@rem Setup the command line
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
:end
@rem End local scope for the variables with windows NT shell
if %ERRORLEVEL% equ 0 goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
set EXIT_CODE=%ERRORLEVEL%
if %EXIT_CODE% equ 0 set EXIT_CODE=1
if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
exit /b %EXIT_CODE%
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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rootProject.name = "SweetDreams"

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src/main/java/org/adrianvictor/sweetdreams/Configuration.java Normal file
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package org.adrianvictor.sweetdreams;
import org.bukkit.configuration.InvalidConfigurationException;
import org.bukkit.configuration.file.YamlConfiguration;
import java.io.File;
import java.io.IOException;
public class Configuration {
private final YamlConfiguration playerStorage = new YamlConfiguration();
private final File playerStorageFile;
private final YamlConfiguration pluginConfig = new YamlConfiguration();
private final File pluginConfigFile = new File("");
private final SweetDreams plugin;
public Configuration() {
plugin = SweetDreams.getPlugin();
playerStorageFile = new File(plugin.getDataFolder(), "playerstorage.yml");
if (playerStorageFile.exists()) {
try {
playerStorage.load(playerStorageFile);
} catch (IOException | InvalidConfigurationException e) {
plugin.getLogger().severe("Error loading player storage: " + e.getMessage());
throw new RuntimeException(e);
}
}
}
public void savePlayerStorage() {
try {
playerStorage.save(playerStorageFile);
} catch (IOException e) {
plugin.getLogger().severe("Could not save to player storage: " + e.getMessage());
throw new RuntimeException(e);
}
}
public YamlConfiguration getPlayerStorage() {
return playerStorage;
}
public YamlConfiguration getPluginConfig() {
return pluginConfig;
}
}

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src/main/java/org/adrianvictor/sweetdreams/EventListener.java Normal file
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package org.adrianvictor.sweetdreams;
import com.destroystokyo.paper.event.player.PlayerSetSpawnEvent;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.Sound;
import org.bukkit.World;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDamageEvent;
import org.bukkit.event.entity.EntityPortalEnterEvent;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.PlayerBedEnterEvent;
import org.bukkit.util.Vector;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;
import java.util.UUID;
public class EventListener implements Listener {
private final PlayerStorage storage;
private final Set<UUID> teleporting = new HashSet<>();
public EventListener() {
this.storage = SweetDreams.getPlugin().getStorage();
}
@EventHandler
public void onPlayerBedEnterEvent(PlayerBedEnterEvent event) {
if (event.getPlayer().getWorld() == SweetDreams.getPlugin().getWorld()) {
storage.savePlayerSpawnPoint(event.getPlayer());
event.getPlayer().sendMessage("Respawn point set.");
event.setCancelled(true);
return;
}
Long time = event.getPlayer().getWorld().getTime();
if (!(time >= 13000 && time <= 23000)) {
event.setCancelled(true);
return;
}
teleport(event.getPlayer());
event.setCancelled(true);
}
@EventHandler
public void onPlayerSetSpawn(PlayerSetSpawnEvent event) {
if (event.getPlayer().getWorld() != SweetDreams.getPlugin().getWorld())
return;
// TODO save player spawn point on dreamlands
event.setCancelled(true);
}
@EventHandler
public void onPortalEnter(EntityPortalEnterEvent event) {
if (event.getEntity().getWorld() == SweetDreams.getPlugin().getWorld())
event.setCancelled(true);
}
@EventHandler
public void onEntityDamage(EntityDamageEvent event) {
if (event.getEntity().getWorld() != SweetDreams.getPlugin().getWorld()) return;
if (event.getEntity() instanceof Player player) {
if (event.getCause() == EntityDamageEvent.DamageCause.VOID) {
teleport(player);
player.setVelocity(new Vector(0, 0, 0));
player.setFallDistance(0);
}
}
}
@EventHandler
public void onPlayerDeath(PlayerDeathEvent event) {
if (event.getEntity().getWorld() != SweetDreams.getPlugin().getWorld()) return;
Player player = event.getPlayer();
teleport(player);
event.setCancelled(true);
}
private void teleport(Player player) {
UUID uuid = player.getUniqueId();
if (!teleporting.add(uuid)) return;
Bukkit.getScheduler().runTask(SweetDreams.getPlugin(), () -> {
try {
World playerWorld = player.getWorld();
if (playerWorld == SweetDreams.getPlugin().getWorld()) {
storage.savePlayer(player, PlayerStorage.StorageWorldType.SKYLANDS);
player.teleport(Objects.requireNonNullElse(
player.getRespawnLocation(),
Bukkit.getWorld("world").getSpawnLocation()
));
player.getInventory().clear();
storage.loadPlayer(player, PlayerStorage.StorageWorldType.OVERWORLD);
player.sendMessage("You woke up from a bad dream...");
player.playSound(player.getLocation(), Sound.ENTITY_ENDER_DRAGON_DEATH, 1.0f, 1.0f);
} else {
World world = SweetDreams.getPlugin().getWorld();
storage.savePlayer(player, PlayerStorage.StorageWorldType.OVERWORLD);
player.getInventory().clear();
player.teleport(storage.loadPlayer(player, PlayerStorage.StorageWorldType.SKYLANDS));
}
} finally {
teleporting.remove(uuid);
}
});
}
}

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src/main/java/org/adrianvictor/sweetdreams/PlayerStorage.java Normal file
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package org.adrianvictor.sweetdreams;
import org.bukkit.Location;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import java.util.UUID;
public class PlayerStorage {
private final Configuration config;
private final YamlConfiguration storage;
// Map<UUID, ItemStack[]> inventories = new HashMap<>();
public enum StorageWorldType {
OVERWORLD("overworld"),
SKYLANDS("skylands");
private final String key;
StorageWorldType(String key) {
this.key = key;
}
public String getKey() {
return key;
}
}
public PlayerStorage(Configuration config) {
this.config = config;
this.storage = config.getPlayerStorage();
}
public void savePlayer(Player player, StorageWorldType type) {
UUID uuid = player.getUniqueId();
String base = "players." + uuid + "." + type.getKey();
ItemStack[] inv = player.getInventory().getContents();
storage.set(base + ".inventory", null);
for (int i = 0; i < inv.length; i++) {
storage.set(base + ".inventory." + i, inv[i]);
}
ItemStack[] armor = player.getInventory().getArmorContents();
storage.set(base + ".armor", null);
for (int i = 0; i < armor.length; i++) {
storage.set(base + ".armor." + i, armor[i]);
}
storage.set(base + ".offhand", player.getInventory().getItemInOffHand());
ItemStack[] ender = player.getEnderChest().getContents();
storage.set(base + ".enderchest", null);
for (int i = 0; i < ender.length; i++) {
storage.set(base + ".enderchest." + i, ender[i]);
}
storage.set(base + ".xp.level", player.getLevel());
storage.set(base + ".xp.exp", player.getExp());
storage.set(base + ".xp.total", player.getTotalExperience());
storage.set(base + ".stats.health", player.getHealth());
storage.set(base + ".stats.food", player.getFoodLevel());
storage.set(base + ".stats.saturation", player.getSaturation());
config.savePlayerStorage();
}
public Location loadPlayer(Player player, StorageWorldType type) {
UUID uuid = player.getUniqueId();
String base = "players." + uuid + "." + type.getKey();
ItemStack[] inv = new ItemStack[36];
var invSec = storage.getConfigurationSection(base + ".inventory");
if (invSec != null) {
for (String key : invSec.getKeys(false)) {
try {
int slot = Integer.parseInt(key);
if (slot >= 0 && slot < inv.length) {
inv[slot] = storage.getItemStack(base + ".inventory." + key);
}
} catch (Exception ignored) {}
}
}
player.getInventory().setContents(inv);
ItemStack[] armor = new ItemStack[4];
var armorSec = storage.getConfigurationSection(base + ".armor");
if (armorSec != null) {
for (String key : armorSec.getKeys(false)) {
try {
int slot = Integer.parseInt(key);
if (slot >= 0 && slot < armor.length) {
armor[slot] = storage.getItemStack(base + ".armor." + key);
}
} catch (Exception ignored) {}
}
}
player.getInventory().setArmorContents(armor);
ItemStack offhand = storage.getItemStack(base + ".offhand");
player.getInventory().setItemInOffHand(offhand);
ItemStack[] ender = new ItemStack[27];
var enderSec = storage.getConfigurationSection(base + ".enderchest");
if (enderSec != null) {
for (String key : enderSec.getKeys(false)) {
try {
int slot = Integer.parseInt(key);
if (slot >= 0 && slot < ender.length) {
ender[slot] = storage.getItemStack(base + ".enderchest." + key);
}
} catch (Exception ignored) {}
}
}
player.getEnderChest().setContents(ender);
player.setTotalExperience(storage.getInt(base + ".xp.total", 0));
player.setLevel(storage.getInt(base + ".xp.level", 0));
player.setExp((float) storage.getDouble(base + ".xp.exp", 0.0));
player.setHealth(Math.min(storage.getDouble(base + ".stats.health", 20.0), player.getMaxHealth()));
player.setFoodLevel(storage.getInt(base + ".stats.food", 20));
player.setSaturation((float) storage.getDouble(base + ".stats.saturation", 5.0));
Object rawSpawn = storage.get(base + ".spawn");
if (rawSpawn instanceof Location spawn) {
return spawn;
} else {
return SweetDreams.getPlugin().getWorld().getSpawnLocation();
}
}
public void savePlayerSpawnPoint(Player player) {
UUID uuid = player.getUniqueId();
String base = "players." + uuid + ".skylands";
storage.set(base + ".spawn", player.getLocation());
}
}

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src/main/java/org/adrianvictor/sweetdreams/SkyIslandsGenerator.java Normal file
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package org.adrianvictor.sweetdreams;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.generator.BlockPopulator;
import org.bukkit.generator.ChunkGenerator;
import org.bukkit.generator.WorldInfo;
import org.jspecify.annotations.NonNull;
import java.util.*;
import java.util.concurrent.atomic.AtomicBoolean;
public class SkyIslandsGenerator extends ChunkGenerator {
private enum IslandType {
ROUND,
LONG,
ARCHIPELAGO,
SPIKY
}
private static final IslandType[] TYPES = IslandType.values();
private record Blob(double x, double y, double z, double rx, double ry, double rz) {}
private static final int CELL_SIZE = 30;
private static final int MIN_RADIUS = 6;
private static final int MAX_RADIUS = 16;
private static final int MIN_Y = 80;
private static final int MAX_Y = 180;
private record LeafOffset(int dx, int dy, int dz) {}
private static final LeafOffset[] LEAF_OFFSETS;
static {
java.util.List<LeafOffset> offsets = new java.util.ArrayList<>();
for (int dx = -2; dx <= 2; dx++) {
for (int dz = -2; dz <= 2; dz++) {
for (int dy = -2; dy <= 0; dy++) {
if (Math.abs(dx) + Math.abs(dz) <= 3) {
offsets.add(new LeafOffset(dx, dy, dz));
}
}
}
}
LEAF_OFFSETS = offsets.toArray(LeafOffset[]::new);
}
@Override
public @NonNull List<BlockPopulator> getDefaultPopulators(@NonNull World world) {
return Collections.singletonList(new SkylandsBlockPopulator());
}
@Override
public void generateSurface(WorldInfo worldInfo, @NonNull Random random, int chunkX, int chunkZ, @NonNull ChunkData chunkData) {
long seed = worldInfo.getSeed();
int chunkWorldX = chunkX * 16;
int chunkWorldZ = chunkZ * 16;
int cellX = Math.floorDiv(chunkWorldX, CELL_SIZE);
int cellZ = Math.floorDiv(chunkWorldZ, CELL_SIZE);
short[][] highestY = new short[16][16];
AtomicBoolean hasTerrain = new AtomicBoolean(false);
for (int x = 0; x < 16; x++) {
Arrays.fill(highestY[x], Short.MIN_VALUE);
}
for (int gx = cellX - 2; gx <= cellX + 2; gx++) {
for (int gz = cellZ - 2; gz <= cellZ + 2; gz++) {
SplittableRandom r = new SplittableRandom(hash(seed, gx, gz));
if (r.nextDouble() > 0.8) {
continue;
}
generateIslandGeometry(
gx,
gz,
r,
blob -> hasTerrain.set(hasTerrain.get() | carveBlob(
chunkData,
chunkX,
chunkZ,
blob,
highestY
))
);
}
}
if (!hasTerrain.get()) {
return;
}
decorateTerrain(chunkData, random, highestY);
}
private boolean carveBlob(ChunkData chunkData, int chunkX, int chunkZ, Blob blob, short[][] highestY) {
boolean touched = false;
int minHeight = chunkData.getMinHeight();
int maxHeight = chunkData.getMaxHeight() - 1;
double invRx = 1.0 / blob.rx();
double invRy = 1.0 / blob.ry();
double invRz = 1.0 / blob.rz();
int baseX = chunkX * 16;
int baseZ = chunkZ * 16;
int blobMinX = (int)Math.floor(blob.x() - blob.rx());
int blobMaxX = (int)Math.ceil(blob.x() + blob.rx());
int blobMinZ = (int)Math.floor(blob.z() - blob.rz());
int blobMaxZ = (int)Math.ceil(blob.z() + blob.rz());
int minLocalX = Math.max(0, blobMinX - baseX);
int maxLocalX = Math.min(15, blobMaxX - baseX);
int minLocalZ = Math.max(0, blobMinZ - baseZ);
int maxLocalZ = Math.min(15, blobMaxZ - baseZ);
for (int localX = minLocalX; localX <= maxLocalX; localX++) {
for (int localZ = minLocalZ; localZ <= maxLocalZ; localZ++) {
int worldX = baseX + localX;
int worldZ = baseZ + localZ;
// int minY = Math.max(chunkData.getMinHeight(), (int)Math.floor(blob.y() - blob.ry()));
// int maxY = Math.min(chunkData.getMaxHeight() -1, (int)Math.ceil(blob.y() + blob.ry()));
double nx = (worldX - blob.x()) * invRx;
double nz = (worldZ - blob.z()) * invRz;
double horizontal = nx * nx + nz * nz;
if (horizontal > 1.0)
continue;
double remaining = 1.0 - horizontal;
if (remaining <= 0)
continue;
double yRadius = Math.sqrt(remaining) * blob.ry();
int startY = Math.max(
minHeight,
(int)Math.ceil(blob.y() - yRadius)
);
int endY = Math.min(
maxHeight,
(int)Math.floor(blob.y() + yRadius)
);
for (int y = startY; y <= endY; y++) {
chunkData.setBlock(localX, y, localZ, Material.STONE);
touched = true;
}
highestY[localX][localZ] = (short) Math.max(highestY[localX][localZ], endY);
}
}
return touched;
}
private void decorateTerrain(ChunkData chunkData, Random random, short[][] highestY) {
generateSurfaceLayers(chunkData, highestY);
generateOres(chunkData, random);
generateTrees(chunkData, random, highestY);
}
private void generateSurfaceLayers(ChunkData chunkData, short[][] highestY) {
int minHeight = chunkData.getMinHeight();
int maxHeight = chunkData.getMaxHeight() - 1;
for (int x = 0; x < 16; x++) {
for (int z = 0; z < 16; z++) {
int highest = highestY[x][z];
if (highest == Short.MIN_VALUE)
continue;
chunkData.setBlock(x, highest, z, Material.GRASS_BLOCK);
for (int y = highest - 1; y >= highest - 3; y--) {
if (y >= minHeight) {
chunkData.setBlock(x, y, z, Material.DIRT);
}
}
}
}
}
private void generateOres(ChunkData chunkData, Random random) {
generateOreVeins(chunkData, random, Material.COAL_ORE, 25, 10);
generateOreVeins(chunkData, random, Material.IRON_ORE, 15, 8);
generateOreVeins(chunkData, random, Material.GOLD_ORE, 6, 6);
generateOreVeins(chunkData, random, Material.DIAMOND_ORE, 2, 4);
}
private void generateOreVeins(ChunkData chunkData, Random random, Material ore, int veins, int size) {
for (int i = 0; i < veins; i++) {
int startX = random.nextInt(16);
int startY = chunkData.getMinHeight() + random.nextInt(chunkData.getMaxHeight() - chunkData.getMinHeight());
int startZ = random.nextInt(16);
for (int j = 0; j < size; j++) {
int x = startX + random.nextInt(5) - 2;
int y = startY + random.nextInt(5) - 2;
int z = startZ + random.nextInt(5) - 2;
if (x < 0 || x >= 16) continue;
if (z < 0 || z >= 16) continue;
if (y < chunkData.getMinHeight()) continue;
if (y >= chunkData.getMaxHeight()) continue;
if (chunkData.getType(x, y, z) == Material.STONE) {
chunkData.setBlock(x, y, z, ore);
}
}
}
}
private void generateTrees(ChunkData chunkData, Random random, short[][] highestY) {
for (int x = 2; x < 14; x++) {
for (int z = 2; z < 14; z++) {
if (random.nextInt(500) != 0) {
continue;
}
int y = highestY[x][z];
if (y == Short.MIN_VALUE) {
continue;
}
if (chunkData.getType(x, y, z) != Material.GRASS_BLOCK) {
continue;
}
placeTree(chunkData, x, y + 1, z, random);
}
}
}
private void placeTree(ChunkData chunkData, int x, int y, int z, Random random) {
int height = 4 + random.nextInt(3);
for (int dy = 0; dy < height; dy++) {
chunkData.setBlock(x, y + dy, z, Material.OAK_LOG);
}
int top = y + height;
for (LeafOffset o : LEAF_OFFSETS) {
chunkData.setBlock(
x + o.dx(),
top + o.dy(),
z + o.dz(),
Material.OAK_LEAVES
);
}
chunkData.setBlock(x, top + 1, z, Material.OAK_LEAVES);
}
private void generateIslandGeometry(
int cellX,
int cellZ,
SplittableRandom random,
java.util.function.Consumer<Blob> consumer
) {
int centerX = cellX * CELL_SIZE + random.nextInt(CELL_SIZE);
int centerZ = cellZ * CELL_SIZE + random.nextInt(CELL_SIZE);
int centerY = MIN_Y + random.nextInt(MAX_Y - MIN_Y);
IslandType type =
TYPES[random.nextInt(TYPES.length)];
switch (type) {
case ROUND -> {
consumer.accept(
new Blob(
centerX,
centerY,
centerZ,
12 + random.nextInt(10),
6 + random.nextInt(5),
12 + random.nextInt(10)
)
);
}
case LONG -> {
double angle = random.nextDouble() * Math.PI * 2;
int segments = 3 + random.nextInt(5);
for (int i = 0; i < segments; i++) {
consumer.accept(
new Blob(
centerX + Math.cos(angle) * i * 10,
centerY + random.nextInt(5) - 2,
centerZ + Math.sin(angle) * i * 10,
8 + random.nextInt(4),
5 + random.nextInt(2),
8 + random.nextInt(4)
)
);
}
}
case ARCHIPELAGO -> {
int count = 3 + random.nextInt(5);
for (int i = 0; i < count; i++) {
consumer.accept(
new Blob(
centerX + random.nextInt(60) - 30,
centerY,
centerZ + random.nextInt(60) - 30,
7 + random.nextInt(5),
4 + random.nextInt(3),
7 + random.nextInt(5)
)
);
}
}
case SPIKY -> {
consumer.accept(
new Blob(centerX, centerY, centerZ, 16, 8, 16)
);
for (int i = 0; i < 6; i++) {
consumer.accept(
new Blob(
centerX + random.nextInt(20) - 10,
centerY - random.nextInt(12),
centerZ + random.nextInt(20) - 10,
2,
10 + random.nextInt(8),
2
)
);
}
}
}
}
private static long hash(long seed, int x, int z) {
long h = seed;
h ^= (long) x * 0x9E3779B97F4A7C15L;
h ^= (long) z * 0xC2B2AE3D27D4EB4FL;
h ^= h >>> 30;
h *= 0xBF58476D1CE4E5B9L;
h ^= h >>> 27;
h *= 0x94D049BB133111EBL;
h ^= h >>> 31;
return h;
}
}

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src/main/java/org/adrianvictor/sweetdreams/SkylandsBlockPopulator.java Normal file
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package org.adrianvictor.sweetdreams;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.generator.BlockPopulator;
import org.bukkit.generator.LimitedRegion;
import org.bukkit.generator.WorldInfo;
import org.jspecify.annotations.NonNull;
import java.util.Random;
public class SkylandsBlockPopulator extends BlockPopulator {
@Override
public void populate(
@NonNull WorldInfo worldInfo,
@NonNull Random random,
int chunkX,
int chunkZ,
@NonNull LimitedRegion region
) {
}
}

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src/main/java/org/adrianvictor/sweetdreams/SweetDreams.java Normal file
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package org.adrianvictor.sweetdreams;
import org.bukkit.Bukkit;
import org.bukkit.World;
import org.bukkit.WorldCreator;
import org.bukkit.plugin.java.JavaPlugin;
import java.io.File;
public final class SweetDreams extends JavaPlugin {
private World world;
private static SweetDreams plugin;
private Configuration configuration;
private PlayerStorage storage;
@Override
public void onEnable() {
plugin = this;
configuration = new Configuration();
storage = new PlayerStorage(configuration);
boolean generated = false;
for (World world: getServer().getWorlds()) {
if (world.getName().equals("world_sweetdreams")) {
Bukkit.unloadWorld(world, true);
File worldFolder = new File(Bukkit.getWorldContainer(), "world_sweetdreams");
if (worldFolder.exists()) {
deleteFolder(worldFolder);
}
// this.world = world;
// generated = true;
}
}
if (!generated) {
world = createSkylandsWorld("world_sweetdreams");
}
getServer().getPluginManager().registerEvents(new EventListener(), this);
}
private void deleteFolder(File folder) {
if (folder.isDirectory()) {
File[] files = folder.listFiles();
if (files != null) {
for (File file : files) {
deleteFolder(file);
}
}
}
folder.delete();
}
@Override
public void onDisable() {
// Plugin shutdown logic
}
public World getWorld() {
return world;
}
public static SweetDreams getPlugin() {
return plugin;
}
public World createSkylandsWorld(String worldName) {
WorldCreator creator = new WorldCreator(worldName);
creator.generator(new SkyIslandsGenerator());
creator.environment(World.Environment.NORMAL);
World world = creator.createWorld();
world.setSpawnFlags(true, true);
return world;
}
public Configuration getConfiguration() {
return configuration;
}
public PlayerStorage getStorage() {
return storage;
}
}

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src/main/resources/config.yml Normal file
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src/main/resources/playerstorage.yml Normal file
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src/main/resources/plugin.yml Normal file
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name: SweetDreams
description: $description
prefix: SweetDreams
version: '${version}'
main: org.adrianvictor.sweetdreams.SweetDreams
api-version: '1.21.11'
load: POSTWORLD
authors: [ tenkuma ]
website: https://adrianvic.github.io