init

.gitignore

@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Environment-dependent path to Maven home directory
+/mavenHomeManager.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/copilot.data.migration.ask2agent.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Ask2AgentMigrationStateService">
+    <option name="migrationStatus" value="COMPLETED" />
+  </component>
+</project>

.idea/gradle.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleHome" value="" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="FrameworkDetectionExcludesConfiguration">
+    <file type="web" url="file://$PROJECT_DIR$" />
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

build.gradle.kts

@@ -0,0 +1,17 @@
+plugins {
+    id("java")
+}
+
+group = "fyi.tiko"
+version = "0.1.0-SNAPSHOT"
+
+repositories {
+    maven {
+        name = "papermc"
+        url = uri("https://repo.papermc.io/repository/maven-public/")
+    }
+}
+
+dependencies {
+    compileOnly("io.papermc.paper:paper-api:1.21.4-R0.1-SNAPSHOT")
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Tue Feb 03 19:33:13 CET 2026
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,234 @@
+#!/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/master/subprojects/plugins/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
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$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
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# 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 +1,89 @@
+@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=.
+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%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+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%"=="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!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "battletowers"

src/main/java/fyi/tiko/battletower/BattleTowerPlugin.java

@@ -0,0 +1,29 @@
+package fyi.tiko.battletower;
+
+import org.bukkit.plugin.java.JavaPlugin;
+
+/**
+ * @author Tiko
+ * @since 03.02.2026, 19:33
+ */
+public class BattleTowerPlugin extends JavaPlugin {
+    private TowerSpawnManager spawnManager;
+
+    @Override
+    public void onEnable() {
+        saveDefaultConfig();
+
+        spawnManager = new TowerSpawnManager(this);
+
+        getServer().getPluginManager().registerEvents(
+            new ChunkPopulateListener(spawnManager),
+            this
+        );
+
+        getLogger().info("Enabled BattleTowerPlugin");
+    }
+
+    public TowerSpawnManager spawnManager() {
+        return spawnManager;
+    }
+}

src/main/java/fyi/tiko/battletower/ChunkPopulateListener.java

@@ -0,0 +1,22 @@
+package fyi.tiko.battletower;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.world.ChunkPopulateEvent;
+
+/**
+ * @author Tiko
+ * @since 03.02.2026, 19:37
+ */
+public class ChunkPopulateListener implements Listener {
+    private final TowerSpawnManager spawnManager;
+
+    public ChunkPopulateListener(final TowerSpawnManager spawnManager) {
+        this.spawnManager = spawnManager;
+    }
+
+    @EventHandler
+    public void handleChunkPopulate(final ChunkPopulateEvent event) {
+        spawnManager.attemptSpawn(event.getChunk());
+    }
+}

src/main/java/fyi/tiko/battletower/OriginalTowerGenerator.java

@@ -0,0 +1,296 @@
+package fyi.tiko.battletower;
+import org.bukkit.*;
+import org.bukkit.block.Block;
+import org.bukkit.block.Chest;
+import org.bukkit.block.CreatureSpawner;
+import org.bukkit.entity.EntityType;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.Random;
+
+public class OriginalTowerGenerator {
+
+    private int floor = 1;
+    private int floorIterator = 0;
+    private boolean topFloor;
+
+    public boolean generate(World world, Random random, int ix, int surfaceY, int kz) {
+
+        TowerType type = TowerType.COBBLE;
+
+        Material WALL = type.wall();
+        Material FLOOR = type.floor();
+        Material PILLAR = type.pillar();
+        Material LIGHT = type.light();
+        Material STAIRS = type.stairs();
+
+        int startY = surfaceY - 6;
+        int maxHeight = 120;
+
+        floor = 1;
+
+        for (int builderHeight = startY; builderHeight < maxHeight; builderHeight += 7) {
+
+            topFloor = builderHeight + 7 >= maxHeight;
+
+            // ✅ FULL Forge Pattern Segment
+            buildSegment(world, random, ix, builderHeight, kz,
+                WALL, FLOOR, PILLAR, STAIRS);
+
+            // ✅ Spawner/Floor
+            if (!topFloor) {
+                placeSpawner(world, ix + 2, builderHeight + 6, kz + 2, random);
+                placeSpawner(world, ix - 3, builderHeight + 6, kz + 2, random);
+            }
+
+            // ✅ Chests
+            placeChests(world, ix, builderHeight + 7, kz);
+
+            // ✅ Lights
+            placeLights(world, ix, builderHeight, kz, LIGHT);
+
+            // ✅ Random Damage Holes (Original feel)
+            randomDamage(world, random, ix, builderHeight + 5, kz, FLOOR);
+
+            floor++;
+        }
+
+        // ✅ Boss Placeholder
+        spawnBoss(world, ix, maxHeight, kz);
+
+        return true;
+    }
+
+    /* ========================================================= */
+
+    private void buildSegment(World world, Random random,
+        int ix, int baseY, int kz,
+        Material WALL,
+        Material FLOOR,
+        Material PILLAR,
+        Material STAIRS) {
+
+        for (floorIterator = 0; floorIterator < 7; floorIterator++) {
+
+            if (floor == 1 && floorIterator < 4) {
+                continue;
+            }
+
+            for (int xIt = -7; xIt < 7; xIt++) {
+                for (int zIt = -7; zIt < 7; zIt++) {
+
+                    int x = ix + xIt;
+                    int y = baseY + floorIterator;
+                    int z = kz + zIt;
+
+                    // ==== EXACT FORGE SHAPE ====
+
+                    if (zIt == -7) {
+                        if (xIt > -5 && xIt < 4) {
+                            wallPiece(world, x, y, z, WALL);
+                        }
+                        continue;
+                    }
+
+                    // Main interior
+                    if (zIt != -6 && zIt != -5) {
+
+                        // Window rows excluded
+                        if (zIt != -4 && zIt != -3 && zIt != 2 && zIt != 3) {
+
+                            if (zIt > -3 && zIt < 2) {
+
+                                if (xIt != -7 && xIt != 6) {
+
+                                    if (floorIterator == 5) {
+                                        place(world, x, y, z, FLOOR);
+                                    } else {
+                                        place(world, x, y, z, Material.AIR);
+                                    }
+
+                                } else {
+                                    wallPiece(world, x, y, z, WALL);
+                                }
+
+                            }
+
+                            else if (zIt == 4) {
+
+                                if (xIt != -5 && xIt != 4) {
+                                    if (floorIterator == 5) {
+                                        place(world, x, y, z, FLOOR);
+                                    } else {
+                                        place(world, x, y, z, Material.AIR);
+                                    }
+                                } else {
+                                    wallPiece(world, x, y, z, WALL);
+                                }
+                            }
+
+                            else if (zIt == 5) {
+
+                                if (xIt != -4 && xIt != -3 && xIt != 2 && xIt != 3) {
+
+                                    if (xIt > -3 && xIt < 2) {
+                                        if (floorIterator == 5) {
+                                            place(world, x, y, z, FLOOR);
+                                        } else {
+                                            wallPiece(world, x, y, z, WALL);
+                                        }
+                                    }
+
+                                } else {
+                                    wallPiece(world, x, y, z, WALL);
+                                }
+                            }
+
+                            else if (zIt == 6 && xIt > -3 && xIt < 2) {
+                                wallPiece(world, x, y, z, WALL);
+                            }
+                        }
+
+                        // Window rows (-4,-3,2,3)
+                        else {
+
+                            if (xIt != -6 && xIt != 5) {
+                                if (floorIterator == 5) {
+                                    place(world, x, y, z, FLOOR);
+                                } else {
+                                    place(world, x, y, z, Material.AIR);
+                                }
+                            } else {
+                                wallPiece(world, x, y, z, WALL);
+                            }
+                        }
+
+                    }
+
+                    // Stair gap
+                    else {
+
+                        if (xIt == -5 || xIt == 4) {
+                            wallPiece(world, x, y, z, WALL);
+                            continue;
+                        }
+
+                        if (zIt == -6) {
+
+                            int stairX = (floorIterator + 1) % 7 - 3;
+
+                            if (xIt == stairX) {
+                                place(world, x, y, z, STAIRS);
+                            } else if (xIt > -5 && xIt < 4) {
+                                place(world, x, y, z, Material.AIR);
+                            }
+                        }
+
+                        if (zIt == -5) {
+                            wallPiece(world, x, y, z, WALL);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /* ========================================================= */
+
+    private void wallPiece(World world, int x, int y, int z, Material wall) {
+
+        // Mossy pillar accents
+        if ((x % 5 == 0) && (z % 5 == 0)) {
+            place(world, x, y, z, Material.MOSSY_COBBLESTONE);
+        } else {
+            place(world, x, y, z, wall);
+        }
+
+        // Fill base into ground
+        if (floor == 1 && floorIterator == 4) {
+            fillDown(world, x, y, z, wall);
+        }
+    }
+
+    private void fillDown(World world, int x, int y, int z, Material mat) {
+        for (int yy = y - 1; yy > 0; yy--) {
+            Block b = world.getBlockAt(x, yy, z);
+            if (b.getType().isSolid()) break;
+            b.setType(mat, false);
+        }
+    }
+
+    /* ========================================================= */
+
+    private void randomDamage(World world, Random random,
+        int ix, int y, int kz, Material floorMat) {
+
+        if (topFloor) return;
+
+        int holes = floor * 2;
+
+        for (int i = 0; i < holes; i++) {
+
+            int dx = random.nextInt(10) - 5;
+            int dz = random.nextInt(10) - 5;
+
+            if (Math.abs(dx) < 2 && Math.abs(dz) < 2) continue;
+
+            Block b = world.getBlockAt(ix + dx, y, kz + dz);
+
+            if (b.getType() == floorMat) {
+                b.setType(Material.AIR, false);
+            }
+        }
+    }
+
+    /* ================= Spawner ================= */
+
+    private void placeSpawner(World world, int x, int y, int z, Random random) {
+
+        Block b = world.getBlockAt(x, y, z);
+        b.setType(Material.SPAWNER);
+
+        CreatureSpawner spawner = (CreatureSpawner) b.getState();
+        spawner.setSpawnedType(EntityType.ZOMBIE);
+        spawner.update();
+    }
+
+    /* ================= Loot ================= */
+
+    private void placeChests(World world, int ix, int y, int kz) {
+
+        for (int i = 0; i < 2; i++) {
+
+            Block chestBlock = world.getBlockAt(ix - i, y, kz + 3);
+            chestBlock.setType(Material.CHEST);
+
+            Chest chest = (Chest) chestBlock.getState();
+            chest.getInventory().addItem(new ItemStack(Material.BREAD, 2));
+            chest.getInventory().addItem(new ItemStack(Material.IRON_INGOT, 2));
+            chest.update();
+        }
+    }
+
+    /* ================= Lights ================= */
+
+    private void placeLights(World world, int ix, int y, int kz, Material light) {
+
+        place(world, ix + 3, y + 1, kz - 6, light);
+        place(world, ix - 4, y + 1, kz - 6, light);
+    }
+
+    /* ================= Boss ================= */
+
+    private void spawnBoss(World world, int ix, int y, int kz) {
+
+        world.spawnEntity(
+            new Location(world, ix + 0.5, y + 2, kz + 0.5),
+            EntityType.IRON_GOLEM
+        );
+    }
+
+    /* ========================================================= */
+
+    private void place(World world, int x, int y, int z, Material mat) {
+        world.getBlockAt(x, y, z).setType(mat, false);
+    }
+}

src/main/java/fyi/tiko/battletower/TowerGenerator.java

@@ -0,0 +1,96 @@
+package fyi.tiko.battletower;
+
+import org.bukkit.Location;
+import org.bukkit.World;
+
+/**
+ * @author Tiko
+ * @since 03.02.2026, 19:41
+ */
+public class TowerGenerator {
+    // 7 blöcke hoch pro etage
+    private static final int FLOOR_HEIGHT = 7;
+
+    // tower radius in blöcken
+    private static final int RADIUS = 7;
+
+    public boolean generate(final Location location) {
+        final var world = location.getWorld();
+        final var x = location.getBlockX();
+        final var z = location.getBlockZ();
+
+        final var surfaceY = world.getHighestBlockYAt(x, z);
+
+        if (surfaceY < 60) {
+            return false; // zu niedrig
+        }
+
+        // original: tower soll leicht im boden starten
+        final var startY = surfaceY - 6;
+
+        TowerType type = TowerType.COBBLE;
+
+        // 6 etagen hoch (zusammenbasteln hier)
+        for (var floor = 0; floor < 6; floor++) {
+            final var floorBaseY = startY + (floor * FLOOR_HEIGHT);
+            buildFloor(world, x, floorBaseY, z, type);
+            buildWalls(world, x, floorBaseY, z, type);
+        }
+
+        // top zusammenbasteln hier
+        buildTop(world, x, startY + (6 * FLOOR_HEIGHT), z, type);
+        return true;
+    }
+
+    private void buildFloor(
+        final World world,
+        final int centerX,
+        final int y,
+        final int centerZ,
+        final TowerType type
+    ) {
+        for (var dx = -6; dx <= 6; dx++) {
+            for (var dz = -6; dz <= 6; dz++) {
+                // nur drinnen
+                if (Math.abs(dx) < 6 && Math.abs(dz) < 6) {
+                    world.getBlockAt(centerX + dx, y, centerZ + dz).setType(type.floor());
+                }
+            }
+        }
+    }
+
+    private void buildWalls(
+        final World world,
+        final int centerX,
+        final int y,
+        final int centerZ,
+        final TowerType type
+    ) {
+        for (var dy = 0; dy < FLOOR_HEIGHT; dy++) {
+            final var currentY = y + dy;
+
+            for (int dx = -RADIUS; dx <= RADIUS; dx++) {
+                for (int dz = -RADIUS; dz <= RADIUS; dz++) {
+                    // outer border = wall
+                    if (Math.abs(dx) == RADIUS || Math.abs(dz) == RADIUS) {
+                        world.getBlockAt(centerX + dx, currentY, centerZ + dz).setType(type.wall());
+                    }
+                }
+            }
+        }
+    }
+
+    private void buildTop(
+        final World world,
+        final int centerX,
+        final int y,
+        final int centerZ,
+        final TowerType type
+    ) {
+        for(var dx = -6; dx <= 6; dx++) {
+            for(var dz = -6; dz <= 6; dz++) {
+                world.getBlockAt(centerX + dx, y, centerZ + dz).setType(type.floor());
+            }
+        }
+    }
+}

src/main/java/fyi/tiko/battletower/TowerSpawnManager.java

@@ -0,0 +1,64 @@
+package fyi.tiko.battletower;
+
+import java.util.HashSet;
+import java.util.Random;
+import java.util.Set;
+import org.bukkit.Chunk;
+import org.bukkit.Location;
+import org.bukkit.plugin.java.JavaPlugin;
+
+/**
+ * @author Tiko
+ * @since 03.02.2026, 19:37
+ */
+public class TowerSpawnManager {
+    private final JavaPlugin plugin;
+    private final Random random = new Random();
+    private final Set<Location> towerPositions = new HashSet<>();
+
+    public TowerSpawnManager(final JavaPlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    public void attemptSpawn(final Chunk chunk) {
+        final var chance = plugin.getConfig().getInt("spawn.chance-per-chunk");
+
+        if (random.nextInt(chance) != 0) {
+            return;
+        }
+
+        final var world = chunk.getWorld();
+        final var x = chunk.getX() * 16 + 8;
+        final var z = chunk.getZ() * 16 + 8;
+        final var y = world.getHighestBlockYAt(x, z);
+
+        final var baseLocation = new Location(world, x, y, z);
+
+        if (!canSpawnAt(baseLocation)) {
+            return;
+        }
+
+        final var generator = new OriginalTowerGenerator();
+        final var success = generator.generate(world, random, x, y, z);
+
+        if (success) {
+            towerPositions.add(baseLocation);
+            plugin.getLogger().info("Spawned tower at " + baseLocation);
+        }
+    }
+
+    private boolean canSpawnAt(final Location location) {
+        final var minDistance = plugin.getConfig().getInt("spawn.min-distance");
+
+        for (final var other : towerPositions) {
+            if (other.getWorld() != location.getWorld()) {
+                continue;
+            }
+
+            if (other.distanceSquared(location) < minDistance) {
+                return false;
+            }
+        }
+        return true;
+    }
+}

src/main/java/fyi/tiko/battletower/TowerType.java

@@ -0,0 +1,39 @@
+package fyi.tiko.battletower;
+
+import org.bukkit.Material;
+
+public enum TowerType {
+
+    COBBLE(
+        Material.COBBLESTONE,
+        Material.STONE_BRICKS,
+        Material.MOSSY_COBBLESTONE, // ✅ Pillars
+        Material.TORCH,
+        Material.COBBLESTONE_STAIRS
+    );
+
+    private final Material wall;
+    private final Material floor;
+    private final Material pillar;
+    private final Material light;
+    private final Material stairs;
+
+    TowerType(Material wall,
+        Material floor,
+        Material pillar,
+        Material light,
+        Material stairs) {
+
+        this.wall = wall;
+        this.floor = floor;
+        this.pillar = pillar;
+        this.light = light;
+        this.stairs = stairs;
+    }
+
+    public Material wall() { return wall; }
+    public Material floor() { return floor; }
+    public Material pillar() { return pillar; }
+    public Material light() { return light; }
+    public Material stairs() { return stairs; }
+}

src/main/resources/config.yml

@@ -0,0 +1,6 @@
+spawn:
+  chance-per-chunk: 250   # 1/X chunks
+  min-distance: 196       # wie original
+  max-y-difference: 22
+
+debug: true

src/main/resources/plugin.yml

@@ -0,0 +1,7 @@
+name: battle-towers-revamped
+version: 0.0.1
+main: fyi.tiko.battletower.BattleTowerPlugin
+api-version: 1.21
+author: tiko
+description: A revamped version of the old battle towers mod for the old modpack "hexxit". Ported from 1.5.2 to paper 1.21
+