abc

.gitignore

@@ -0,0 +1,51 @@
+.idea
+
+# ---> Gradle
+.gradle
+**/build/
+!src/**/build/
+build
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+# Avoid ignore Gradle wrappper properties
+!gradle-wrapper.properties
+
+# Cache of project
+.gradletasknamecache
+
+# Eclipse Gradle plugin generated files
+# Eclipse Core
+.project
+# JDT-specific (Eclipse Java Development Tools)
+.classpath
+
+# ---> Java
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

build.gradle

@@ -0,0 +1,68 @@
+plugins {
+    id 'java'
+    id("xyz.jpenilla.run-paper") version "2.3.1"
+}
+
+group = 'io.p2vman'
+version = '1.0-SNAPSHOT'
+
+repositories {
+    mavenCentral()
+    maven {
+        name = "papermc-repo"
+        url = "https://repo.papermc.io/repository/maven-public/"
+    }
+    maven {
+        name = "sonatype"
+        url = "https://oss.sonatype.org/content/groups/public/"
+    }
+}
+
+dependencies {
+    compileOnly("io.papermc.paper:paper-api:1.20.1-R0.1-SNAPSHOT")
+
+    implementation("cloud.commandframework:cloud-paper:1.8.3")
+
+    implementation 'com.google.guava:guava:31.1-jre'
+    implementation 'com.google.inject:guice:5.0.1'
+    implementation 'javax.inject:javax.inject:1'
+
+    compileOnly("org.projectlombok:lombok:1.18.38")
+    annotationProcessor("org.projectlombok:lombok:1.18.38")
+}
+
+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("1.20")
+    }
+}
+
+def targetJavaVersion = 17
+java {
+    def javaVersion = JavaVersion.toVersion(targetJavaVersion)
+    sourceCompatibility = javaVersion
+    targetCompatibility = javaVersion
+    if (JavaVersion.current() < javaVersion) {
+        toolchain.languageVersion = JavaLanguageVersion.of(targetJavaVersion)
+    }
+}
+
+tasks.withType(JavaCompile).configureEach {
+    options.encoding = 'UTF-8'
+
+    if (targetJavaVersion >= 10 || JavaVersion.current().isJava10Compatible()) {
+        options.release.set(targetJavaVersion)
+    }
+}
+
+processResources {
+    def props = [version: version]
+    inputs.properties props
+    filteringCharset 'UTF-8'
+    filesMatching('plugin.yml') {
+        expand props
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 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.
+#
+
+##############################################################################
+#
+#   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/HEAD/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 "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&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
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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 "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( 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, 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=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,92 @@
+@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
+
+@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
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+: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

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'Pilers'

src/main/java/io/p2vman/pilers/Builder.java

@@ -0,0 +1,156 @@
+package io.p2vman.pilers;
+
+import net.kyori.adventure.text.Component;
+import org.bukkit.*;
+import org.bukkit.block.Block;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.util.*;
+import java.util.function.Consumer;
+
+public class Builder {
+    private static final double DESIRED_DISTANCE = 20.0;
+    private static final double RADIUS = (DESIRED_DISTANCE * 42) / (2 * Math.PI);
+    private static final double CHUNK_DIAGONAL_HALF = Math.sqrt(16 * 16 + 16 * 16) / 2.0;
+    public void build(int online, Consumer<Set<Long>> onComplete, Consumer<Component> chat) {
+        World world = Bukkit.getWorlds().get(0);
+        double d = DESIRED_DISTANCE;
+
+        if (online < 6) {
+            d = 30d;
+        } else if (online == 6) {
+            d = 25d;
+        }
+
+        double radius = (d * Math.min(online, 42)) / (2 * Math.PI);
+
+        Set<Long> chunks = new HashSet<>();
+        Set<Long> pillars = new HashSet<>();
+
+        {
+            int minChunkX = (int) Math.floor(-RADIUS / 16.0) - 1;
+            int maxChunkX = (int) Math.floor(RADIUS / 16.0) + 1;
+            int minChunkZ = (int) Math.floor(-RADIUS / 16.0) - 1;
+            int maxChunkZ = (int) Math.floor(RADIUS / 16.0) + 1;
+
+            double nearestX, nearestZ, centerX, centerZ;
+            int chunkX, chunkZ;
+            for (chunkX = minChunkX; chunkX <= maxChunkX; chunkX++) {
+                for (chunkZ = minChunkZ; chunkZ <= maxChunkZ; chunkZ++) {
+                    nearestX = clamp(0, chunkX * 16, chunkX * 16 + 15);
+                    nearestZ = clamp(0, chunkZ * 16, chunkZ * 16 + 15);
+
+
+                    if (nearestX * nearestX + nearestZ * nearestZ <= RADIUS * RADIUS) {
+                        chunks.add(((long) chunkX << 32) | (chunkZ & 0xFFFFFFFFL));
+                    }
+
+                    centerX = chunkX * 16 + 8;
+                    centerZ = chunkZ * 16 + 8;
+
+                    if (Math.sqrt(centerX * centerX + centerZ * centerZ) + CHUNK_DIAGONAL_HALF <= RADIUS) {
+                        chunks.add(((long) chunkX << 32) | (chunkZ & 0xFFFFFFFFL));
+                    }
+                }
+            }
+        }
+
+        {
+            double angle;
+            int x, z;
+            for (int i = 0; i < Math.min(online, 64); i++) {
+                angle = 2 * Math.PI * i / Math.min(online, 64);
+                x = (int) Math.round(radius * Math.cos(angle));
+                z = (int) Math.round(radius * Math.sin(angle));
+
+                pillars.add(((long) x << 32) | (z & 0xFFFFFFFFL));
+            }
+        }
+
+        {
+            Runnable onComp = () -> {
+                Queue<Long> queue = new ArrayDeque<>(pillars);
+                new BukkitRunnable() {
+                    @Override
+                    public void run() {
+                        for (int i = 0; i < 40; i++) {
+                            if (queue.isEmpty()) {
+                                cancel();
+                                if (onComplete != null) {
+                                    onComplete.accept(pillars);
+                                }
+                                return;
+                            }
+
+                            Long entry = queue.poll();
+                            if (entry == null) continue;
+
+                            int x = (int) (entry >> 32);
+                            int z = (int) (entry & 0xFFFFFFFFL);
+
+                            for (int y = -10; y <  10; y++) {
+                                world.getBlockAt(x, y, z).setType(Material.BEDROCK);
+                            }
+
+                            chat.accept(
+                                    Component.text("Processed piler ")
+                                            .append(Component.text(x))
+                                            .append(Component.text(" "))
+                                            .append(Component.text(z))
+                            );
+                        }
+                    }
+                }.runTaskTimer(JavaPlugin.getProvidingPlugin(Pilers.class), 0L, 1L);
+            };
+
+
+            Queue<Long> queue = new ArrayDeque<>(chunks);
+            new BukkitRunnable() {
+                @Override
+                public void run() {
+                    for (int i = 0; i < 10; i++) {
+                        if (queue.isEmpty()) {
+                            cancel();
+                            onComp.run();
+                            return;
+                        }
+
+                        Long entry = queue.poll();
+                        if (entry == null) continue;
+
+                        int chunkX = (int) (entry >> 32);
+                        int chunkZ = (int) (entry & 0xFFFFFFFFL);
+
+
+                        Chunk chunk = world.getChunkAt(chunkX, chunkZ);
+
+                        for (int x = 0; x < 16; x++) {
+                            for (int y = world.getMinHeight(); y < world.getMaxHeight(); y++) {
+                                for (int z = 0; z < 16; z++) {
+                                    Block block = chunk.getBlock(x, y, z);
+                                    if (block.getType() != Material.AIR) {
+                                        block.setType(Material.AIR, false);
+                                    }
+                                }
+                            }
+                        }
+
+                        chat.accept(
+                                Component.text("Processed chunk ")
+                                        .append(Component.text(chunkX))
+                                        .append(Component.text(" "))
+                                        .append(Component.text(chunkZ))
+                        );
+                    }
+                }
+            }.runTaskTimer(JavaPlugin.getProvidingPlugin(Pilers.class), 0L, 1L);
+        }
+    }
+
+    private static double clamp(double value, double min, double max) {
+        if (value < min) return min;
+        if (value > max) return max;
+        return value;
+    }
+}

src/main/java/io/p2vman/pilers/ItemRandom.java

@@ -0,0 +1,42 @@
+package io.p2vman.pilers;
+
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.Random;
+import java.util.function.Function;
+import java.util.stream.Stream;
+
+
+public class ItemRandom extends Random {
+    public Material nextItem() {
+        Material material;
+        do {
+            material = Material.values()[nextInt(Material.values().length)];
+        } while (!material.isItem());
+        return material;
+    }
+
+    public Material nextBlock() {
+        Material material;
+        do {
+            material = Material.values()[nextInt(Material.values().length)];
+        } while (!material.isBlock());
+        return material;
+    }
+
+    public static final Function<Material, Boolean> BLOCK = Material::isBlock;
+    public static final Function<Material, Boolean> ITEM = Material::isItem;
+    public static final Function<Material, Boolean> ITEM_BLOCK = (m) -> m.isBlock() | m.isItem();
+
+    public Stream<ItemStack> itemStackStream(int max, int min, Function<Material, Boolean> filter) {
+        return Stream.generate(() -> {
+            Material material;
+            do {
+                material = Material.values()[nextInt(Material.values().length)];
+            } while (!filter.apply(material));
+
+            return new ItemStack(material, nextInt(min, max));
+        });
+    }
+}

src/main/java/io/p2vman/pilers/Pilers.java

@@ -0,0 +1,190 @@
+package io.p2vman.pilers;
+
+import cloud.commandframework.CommandManager;
+import cloud.commandframework.execution.CommandExecutionCoordinator;
+import cloud.commandframework.paper.PaperCommandManager;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.title.TitlePart;
+
+import org.bukkit.*;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.PlayerDeathEvent;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.util.*;
+import java.util.function.Function;
+import java.util.logging.Logger;
+
+public final class Pilers extends JavaPlugin implements Listener {
+
+    public static final Logger LOGGER = Logger.getLogger("Fucked");
+
+    @AllArgsConstructor
+    @Getter
+    public static class GameState {
+        ItemRandom random;
+        Builder builder;
+        String id;
+        boolean start;
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        Player player = event.getPlayer();
+        if (state != null && state.start) {
+            boolean f = false;
+            for (String str : player.getScoreboardTags()) {
+                if (Objects.equals(str, "p_"+state.id)) {
+                    f = true;
+                    break;
+                }
+            }
+            if (!f) {
+                player.setGameMode(GameMode.SPECTATOR);
+                Iterator<String> tags = player.getScoreboardTags().iterator();
+                while (tags.hasNext()) player.removeScoreboardTag(tags.next());
+            }
+        }
+        else {
+            player.setGameMode(GameMode.SURVIVAL);
+            Iterator<String> tags = player.getScoreboardTags().iterator();
+            while (tags.hasNext()) player.removeScoreboardTag(tags.next());
+            player.teleport(new Location(Bukkit.getWorlds().get(0), 0, 0, 0));
+            Bukkit.getWorlds().get(0).setType(0,-1,0, Material.STONE);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        update();
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPlayerDeath(PlayerDeathEvent event) {
+        Iterator<String> tags = event.getPlayer().getScoreboardTags().iterator();
+        while (tags.hasNext()) event.getPlayer().removeScoreboardTag(tags.next());
+        event.getPlayer().setGameMode(GameMode.SPECTATOR);
+        update();
+    }
+
+    public void update() {
+        LOGGER.info("update");
+        if (state == null || !state.start) {
+            LOGGER.info("call");
+            return;
+        }
+        Collection<? extends Player> players = Bukkit.getOnlinePlayers();
+        int online = players.size();
+        if (online <= 1) {
+            stop(Optional.empty());
+            LOGGER.info("b");
+        }
+        else {
+            int c = 0;
+            Player f = null;
+            for (Player player : players) {
+                if (player.getGameMode() == GameMode.SURVIVAL && player.getScoreboardTags().contains("p_" + state.id)) {
+                    c++;
+                    f = player;
+                }
+            }
+            if (c <= 1) {
+                LOGGER.info("a");
+                stop(Optional.ofNullable(f));
+            }
+        }
+    }
+
+    GameState state = null;
+
+    public void stop(Optional<Player> win) {
+        LOGGER.info("stop");
+        state.start = false;
+        Collection<? extends Player> players = Bukkit.getOnlinePlayers();
+        Bukkit.getWorlds().get(0).setType(0,-1,0, Material.STONE);
+        Location location = new Location(Bukkit.getWorlds().get(0), 0, 0, 0);
+        for (Player player : players) {
+            player.setGameMode(GameMode.SURVIVAL);
+            Iterator<String> tags = player.getScoreboardTags().iterator();
+            while (tags.hasNext()) player.removeScoreboardTag(tags.next());
+            player.teleport(location);
+            win.ifPresentOrElse((w) -> {
+                player.sendTitlePart(TitlePart.TITLE, Component.text("Player ").append(w.displayName()).append(Component.text(" win")));
+            }, () -> {
+                player.sendTitlePart(TitlePart.TITLE, Component.text("No win"));
+            });
+        }
+
+        win.ifPresentOrElse((w) -> {
+            w.setLevel(1);
+        }, () -> {
+
+        });
+        state = null;
+    }
+
+    @Override
+    public void onEnable() {
+        getServer().getPluginManager().registerEvents(this, this);
+        try {
+            CommandManager<CommandSender> manager = new PaperCommandManager<>(this, CommandExecutionCoordinator.simpleCoordinator(), Function.identity(), Function.identity());
+
+            manager.command(manager.commandBuilder("test")
+                    .handler((ctx) -> {
+                        Builder builder = new Builder();
+                        ItemRandom random = new ItemRandom();
+
+                        byte[] buff = new byte[12];
+                        random.nextBytes(buff);
+
+                        Collection<? extends Player> players = Bukkit.getOnlinePlayers();
+                        state = new GameState(random, builder, Base64.getEncoder().encodeToString(buff), false);
+
+                        builder.build(players.size(), (p) -> {
+                            World world = Bukkit.getWorlds().get(0);
+                            ctx.getSender().sendMessage("End");
+                            List<Player> players_ = new ArrayList<>(Bukkit.getOnlinePlayers());
+
+                            players_.forEach((e) -> {
+                                Iterator<String> tags = e.getScoreboardTags().iterator();
+                                while (tags.hasNext()) e.removeScoreboardTag(tags.next());
+                                e.addScoreboardTag("p_"+state.id);
+                                e.setGameMode(GameMode.SURVIVAL);
+                            });
+
+                            Iterator<? extends Player> it = players_.iterator();
+                            p.forEach((a) -> {
+                                int x = (int) (a >> 32);
+                                int z = (int) (a & 0xFFFFFFFFL);
+                                int y = world.getHighestBlockAt(x, z).getY()+1;
+                                if (it.hasNext()) {
+                                    it.next().teleport(new Location(world, x, y, z).add(0.5, 0, 0.5));
+                                }
+                            });
+
+                            state.start = true;
+
+                        }, (c) -> {
+                            ctx.getSender().sendMessage(c);
+                        });
+                    }));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void onDisable() {
+        // Plugin shutdown logic
+    }
+}

src/main/java/io/p2vman/pilers/events/Event.java

@@ -0,0 +1,16 @@
+package io.p2vman.pilers.events;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import net.kyori.adventure.text.Component;
+import org.bukkit.scheduler.BukkitRunnable;
+
+@AllArgsConstructor
+@Getter
+public abstract class Event extends BukkitRunnable {
+    private String name;
+    public Component displayname() {
+        return Component.text(name);
+    }
+    public abstract void execute();
+}

src/main/resources/plugin.yml

@@ -0,0 +1,9 @@
+name: Pilers
+version: '1.0-SNAPSHOT'
+main: io.p2vman.pilers.Pilers
+api-version: '1.20'
+libraries:
+  - "cloud.commandframework:cloud-paper:1.8.3"
+  - 'com.google.inject:guice:5.0.1'
+  - 'javax.inject:javax.inject:1'
+  - 'com.google.guava:guava:31.1-jre'