Fix FreezeListener again

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_Main/src/de/steamwar/bausystem/features/region/FreezeListener.java

@@ -115,4 +115,18 @@ public class FreezeListener implements Listener {
             e.setCancelled(true);
         }
     }
+
+    @EventHandler
+    public void onBlockSpread(BlockSpreadEvent e) {
+        if (Region.getRegion(e.getBlock().getLocation()).get(Flag.FREEZE) == FreezeMode.ACTIVE) {
+            e.setCancelled(true);
+        }
+    }
+
+    @EventHandler
+    public void onBlockFromTo(BlockFromToEvent event) {
+        if (Region.getRegion(event.getBlock().getLocation()).get(Flag.FREEZE) == FreezeMode.ACTIVE) {
+            event.setCancelled(true);
+        }
+    }
 }

BauSystem_Main/src/de/steamwar/bausystem/features/techhider/TechHiderCommand.java

@@ -0,0 +1,98 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.features.techhider;
+
+import de.steamwar.bausystem.linkage.LinkageType;
+import de.steamwar.bausystem.linkage.Linked;
+import de.steamwar.bausystem.region.Region;
+import de.steamwar.command.SWCommand;
+import de.steamwar.core.CraftbukkitWrapper;
+import de.steamwar.techhider.TechHider;
+import org.bukkit.Material;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+import java.io.File;
+import java.util.*;
+import java.util.stream.Collectors;
+
+@Linked(LinkageType.COMMAND)
+@Linked(LinkageType.LISTENER)
+public class TechHiderCommand extends SWCommand implements Listener {
+
+    public TechHiderCommand() {
+        super("techhider", "hider", "obfuscate", "hide", "hide-tech");
+    }
+
+    private Map<Region, Optional<TechHider>> techHiders = new HashMap<>();
+    private Map<Region, Set<Player>> hidden = new HashMap<>();
+
+    @Register
+    public void toggleHider(Player player) {
+        Region region = Region.getRegion(player.getLocation());
+        if (region.isGlobal()) {
+            return;
+        }
+
+        Optional<TechHider> techHider = techHiders.computeIfAbsent(region, rg -> {
+            File file = rg.gameModeConfig();
+
+            FileConfiguration config = YamlConfiguration.loadConfiguration(file);
+            if (!config.getBoolean("Techhider.Active", false)) {
+                return Optional.empty();
+            }
+
+            hidden.put(rg, new HashSet<>());
+
+            String obfuscateWith = config.getString("Techhider.ObfuscateWith", "end_stone");
+            Set<String> hiddenBlocks = Collections.unmodifiableSet(new HashSet<>(config.getStringList("Techhider.HiddenBlocks")));
+            Set<String> hiddenBlockEntities = Collections.unmodifiableSet(new HashSet<>(config.getStringList("Techhider.HiddenBlockEntities")));
+
+            TechHider current = new TechHider((p, cX, cY) -> {
+                if (rg.chunkOutside(cX, cY)) return true;
+                return !hidden.get(rg).contains(p);
+            }, Material.valueOf(obfuscateWith.toUpperCase()), hiddenBlocks.stream().map(String::toUpperCase).map(Material::valueOf).collect(Collectors.toSet()), hiddenBlockEntities);
+            current.enable();
+
+            return Optional.of(current);
+        });
+        if (!techHider.isPresent()) {
+            return;
+        }
+
+        if (hidden.get(region).contains(player)) {
+            hidden.get(region).remove(player);
+        } else {
+            hidden.get(region).add(player);
+        }
+        region.forEachChunk((x, z) -> {
+            CraftbukkitWrapper.impl.sendChunk(player, x, z);
+        });
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        hidden.forEach((rg, players) -> players.remove(event.getPlayer()));
+    }
+}