src/de/steamwar/towerrun/TowerRun.java

@@ -21,8 +21,10 @@ package de.steamwar.towerrun;
 
 import de.steamwar.message.Message;
 import de.steamwar.towerrun.commands.StartCommand;
+import de.steamwar.towerrun.config.WorldConfig;
 import de.steamwar.towerrun.countdowns.EndCountdown;
 import de.steamwar.towerrun.countdowns.LobbyCountdown;
+import de.steamwar.towerrun.generator.TowerGenerator;
 import de.steamwar.towerrun.listener.GlobalListener;
 import de.steamwar.towerrun.listener.IngameListener;
 import de.steamwar.towerrun.listener.LobbyListener;
@@ -34,6 +36,8 @@ import org.bukkit.plugin.java.annotation.plugin.Description;
 import org.bukkit.plugin.java.annotation.plugin.Plugin;
 import org.bukkit.plugin.java.annotation.plugin.author.Author;
 
+import java.util.Optional;
+
 @Plugin(name = "TowerRun", version = "1.0.0")
 @Dependency(value = "SpigotCore")
 @Author(value = "YoyoNow")
@@ -47,11 +51,18 @@ public class TowerRun extends JavaPlugin {
     @Getter
     private static Message message;
 
+    @Getter
+    private static TowerGenerator towerGenerator = null;
+
     @Override
     public void onEnable() {
         instance = this;
         message = new Message("TowerRun", getClassLoader());
 
+        if (WorldConfig.TOWER_GENERATOR_CONFIG != null) {
+            towerGenerator = new TowerGenerator(WorldConfig.TOWER_GENERATOR_CONFIG);
+        }
+
         new LobbyListener();
         new IngameListener();
         new GlobalListener();

src/de/steamwar/towerrun/config/WorldConfig.java

@@ -19,6 +19,7 @@
 
 package de.steamwar.towerrun.config;
 
+import de.steamwar.sql.SchematicType;
 import de.steamwar.towerrun.TowerRun;
 import de.steamwar.towerrun.winconditions.FirstOutsideWincondition;
 import de.steamwar.towerrun.winconditions.LastOutsideWincondition;
@@ -53,6 +54,7 @@ public class WorldConfig {
     public static final int MAP_MIN_Z;
     public static final int MAP_MAX_X;
     public static final int MAP_MAX_Z;
+    public static final TowerGeneratorConfig TOWER_GENERATOR_CONFIG;
 
     public static final List<WinCondition> WINCONDITIONS = new ArrayList<>();
     static {
@@ -149,6 +151,13 @@ public class WorldConfig {
 
         ACTIVE_WINCONDITIONS = config.getStringList("winconditions");
         WINCONDITIONS.stream().filter(winCondition -> ACTIVE_WINCONDITIONS.contains(winCondition.getName())).forEach(winCondition -> winCondition.setActive(true));
+
+        ConfigurationSection towerGeneratorSection = tower.getConfigurationSection("towerGenerator");
+        if (towerGeneratorSection == null) {
+            TOWER_GENERATOR_CONFIG = null;
+        } else {
+            TOWER_GENERATOR_CONFIG = new TowerGeneratorConfig(towerGeneratorSection);
+        }
     }
 
     @Getter
@@ -176,4 +185,19 @@ public class WorldConfig {
                     && vector.getZ() >= min.getZ() && vector.getZ() <= max.getZ();
         }
     }
+
+    @Getter
+    public static final class TowerGeneratorConfig {
+        public final int x;
+        public final int y;
+        public final int z;
+        public final SchematicType schematicType;
+
+        public TowerGeneratorConfig(ConfigurationSection section) {
+            x = section.getInt("x");
+            y = section.getInt("y");
+            z = section.getInt("z");
+            schematicType = SchematicType.fromDB(section.getString("schematicType"));
+        }
+    }
 }

src/de/steamwar/towerrun/countdowns/LobbyCountdown.java

@@ -47,7 +47,7 @@ public class LobbyCountdown extends Countdown {
 
     @Override
     void timerEnd() {
-        TowerRunGame.start();
+        TowerRunGame.prepareTower();
     }
 
     @Override

src/de/steamwar/towerrun/game/TowerRunGame.java

@@ -48,8 +48,22 @@ public class TowerRunGame {
         return PLAYERS_ALIVE.contains(player);
     }
 
-    public static void start() {
+    public static void prepareTower() {
         if (GameState.getCurrentState() == GameStates.LOBBY) {
+            GameState.nextState();
+            if (TowerRun.getTowerGenerator() == null) {
+                start();
+                return;
+            }
+
+            TowerRun.getTowerGenerator().generate(TowerRunGame::start);
+        } else {
+            throw new IllegalStateException("Game is already running!");
+        }
+    }
+
+    private static void start() {
+        if (GameState.getCurrentState() == GameStates.GENERATING_TOWER) {
             PLAYERS_ALIVE.addAll(TowerRunPlayer.getAll());
             PLAYERS_ALIVE.forEach(TowerRunPlayer::reset);
             GameState.nextState();

src/de/steamwar/towerrun/game/TowerRunPlayer.java

@@ -19,6 +19,7 @@
 
 package de.steamwar.towerrun.game;
 
+import de.steamwar.towerrun.TowerRun;
 import de.steamwar.towerrun.config.WorldConfig;
 import org.bukkit.entity.Player;
 import org.bukkit.util.Vector;
@@ -43,7 +44,11 @@ public record TowerRunPlayer(Player player) {
     }
 
     public void reset() {
+        if (TowerRun.getTowerGenerator() != null) {
+            player.teleport(WorldConfig.SPAWN.add(0, TowerRun.getTowerGenerator().getHeight(), 0));
+        } else {
             player.teleport(WorldConfig.SPAWN);
+        }
         player.setVelocity(new Vector(0, 0, 0));
     }
 

src/de/steamwar/towerrun/generator/TowerGenerator.java

@@ -0,0 +1,104 @@
+package de.steamwar.towerrun.generator;
+
+import com.sk89q.worldedit.EditSession;
+import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.bukkit.BukkitWorld;
+import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import com.sk89q.worldedit.extent.clipboard.io.ClipboardFormats;
+import com.sk89q.worldedit.extent.clipboard.io.ClipboardReader;
+import com.sk89q.worldedit.function.operation.Operations;
+import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.session.ClipboardHolder;
+import de.steamwar.sql.SchematicData;
+import de.steamwar.sql.SchematicNode;
+import de.steamwar.sql.SchematicType;
+import de.steamwar.towerrun.TowerRun;
+import de.steamwar.towerrun.config.WorldConfig;
+import lombok.Getter;
+import org.bukkit.Bukkit;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.List;
+import java.util.Objects;
+import java.util.Random;
+
+public class TowerGenerator {
+
+    private Random random = new Random();
+    private int x;
+    private int y;
+    private int z;
+    private List<SchematicNode> ALL_SCHEMATICS;
+    private Clipboard roof;
+
+    @Getter
+    private int height;
+
+    public TowerGenerator(WorldConfig.TowerGeneratorConfig config) {
+        this(config.x, config.y, config.z, config.schematicType);
+    }
+
+    public TowerGenerator(int x, int y, int z, SchematicType schematicType) {
+        File file = new File(Bukkit.getWorlds().get(0).getWorldFolder(), "Roof.schematic");
+        if (!file.exists()) {
+            Bukkit.shutdown();
+            return;
+        }
+        roof = loadSchematic(file);
+
+        this.x = x;
+        this.y = y;
+        this.z = z;
+        ALL_SCHEMATICS = SchematicNode.getAllSchematicsOfType(schematicType);
+    }
+
+    private Clipboard loadSchematic(File file) {
+        Clipboard clipboard;
+        try (ClipboardReader reader = Objects.requireNonNull(ClipboardFormats.findByFile(file)).getReader(new FileInputStream(file))) {
+            clipboard = reader.read();
+        } catch (NullPointerException | IOException e) {
+            Bukkit.shutdown();
+            throw new SecurityException("TowerRun schematic not found", e);
+        }
+        return clipboard;
+    }
+
+    public void generate(Runnable finishRunnable) {
+        new BukkitRunnable() {
+            int height = random.nextInt(50) + 200;
+            int y = TowerGenerator.this.y;
+
+            {
+                TowerGenerator.this.height = height;
+            }
+
+            @Override
+            public void run() {
+                if (height > 0) {
+                    SchematicNode schematicNode = ALL_SCHEMATICS.get(random.nextInt(ALL_SCHEMATICS.size()));
+                    SchematicData schematicData = new SchematicData(schematicNode);
+                    try {
+                        Clipboard clipboard = schematicData.load();
+                        try (EditSession e = WorldEdit.getInstance().getEditSessionFactory().getEditSession(new BukkitWorld(Bukkit.getWorlds().get(0)), -1)) {
+                            ClipboardHolder ch = new ClipboardHolder(clipboard);
+                            Operations.completeBlindly(ch.createPaste(e).to(BlockVector3.at(x, y, z)).build());
+                        }
+                        y += clipboard.getDimensions().getY();
+                        height -= clipboard.getDimensions().getY();
+                    } catch (IOException e) {
+                        ALL_SCHEMATICS.remove(schematicNode);
+                    }
+                } else {
+                    try (EditSession e = WorldEdit.getInstance().getEditSessionFactory().getEditSession(new BukkitWorld(Bukkit.getWorlds().get(0)), -1)) {
+                        ClipboardHolder ch = new ClipboardHolder(roof);
+                        Operations.completeBlindly(ch.createPaste(e).to(BlockVector3.at(x, y, z)).build());
+                    }
+                    finishRunnable.run();
+                }
+            }
+        }.runTaskTimer(TowerRun.getInstance(), 0, 1);
+    }
+}

src/de/steamwar/towerrun/listener/IngameListener.java

@@ -112,6 +112,10 @@ public class IngameListener extends GameStateBukkitListener {
 
     @EventHandler
     public void onPlayerRespawn(PlayerRespawnEvent event) {
+        if (TowerRun.getTowerGenerator() != null) {
+            event.setRespawnLocation(WorldConfig.SPAWN.add(0, TowerRun.getTowerGenerator().getHeight(), 0));
+        } else {
             event.setRespawnLocation(WorldConfig.SPAWN);
         }
+    }
 }

src/de/steamwar/towerrun/listener/LobbyListener.java

@@ -19,6 +19,7 @@
 
 package de.steamwar.towerrun.listener;
 
+import de.steamwar.towerrun.TowerRun;
 import de.steamwar.towerrun.config.WorldConfig;
 import de.steamwar.towerrun.state.GameStateBukkitListener;
 import de.steamwar.towerrun.state.GameStates;
@@ -42,9 +43,14 @@ public class LobbyListener extends GameStateBukkitListener {
     @EventHandler
     public void onPlayerJoin(PlayerJoinEvent event) {
         Player player = event.getPlayer();
+        if (TowerRun.getTowerGenerator() != null) {
+            player.teleport(WorldConfig.SPAWN.add(0, TowerRun.getTowerGenerator().getHeight(), 0));
+            player.setGameMode(GameMode.SPECTATOR);
+        } else {
             player.teleport(WorldConfig.SPAWN);
             player.setGameMode(GameMode.SURVIVAL);
         }
+    }
 
     @EventHandler
     public void onPlayerMove(PlayerMoveEvent event) {

src/de/steamwar/towerrun/listener/NotLobbyListener.java

@@ -19,6 +19,7 @@
 
 package de.steamwar.towerrun.listener;
 
+import de.steamwar.towerrun.TowerRun;
 import de.steamwar.towerrun.config.WorldConfig;
 import de.steamwar.towerrun.state.GameStateBukkitListener;
 import de.steamwar.towerrun.state.GameStates;
@@ -36,6 +37,10 @@ public class NotLobbyListener extends GameStateBukkitListener {
     @EventHandler
     public void onPlayerJoin(PlayerJoinEvent event) {
         event.getPlayer().setGameMode(GameMode.SPECTATOR);
+        if (TowerRun.getTowerGenerator() != null) {
+            event.getPlayer().teleport(WorldConfig.SPAWN.add(0, TowerRun.getTowerGenerator().getHeight(), 0));
+        } else {
             event.getPlayer().teleport(WorldConfig.SPAWN);
         }
+    }
 }

src/de/steamwar/towerrun/state/GameStates.java

@@ -27,7 +27,8 @@ import lombok.Getter;
 public enum GameStates {
     ENDING(null),
     INGAME(ENDING),
-    LOBBY(INGAME);
+    GENERATING_TOWER(INGAME),
+    LOBBY(GENERATING_TOWER);
 
     private final GameStates nextState;
 }