置いたブロックを15秒で消えるように

Author: Elic0de

src/main/java/com/github/elic0de/thejpspit/spigot/TheJpsPit.java

@@ -16,6 +16,7 @@
 import com.github.elic0de.thejpspit.spigot.item.items.ItemDiamondChestPlate;
 import com.github.elic0de.thejpspit.spigot.item.items.ItemDiamondSword;
 import com.github.elic0de.thejpspit.spigot.item.items.ItemObsidian;
+import com.github.elic0de.thejpspit.spigot.listener.BlockPlaceListener;
 import com.github.elic0de.thejpspit.spigot.listener.CombatTagger;
 import com.github.elic0de.thejpspit.spigot.listener.EventListener;
 import com.github.elic0de.thejpspit.spigot.network.PluginMessageReceiver;
@@ -103,7 +104,7 @@ public void onEnable() {
                 .registerOutgoingPluginChannel(this, PluginMessageReceiver.BUNGEE_CHANNEL_ID);
 
         registerCommands();
-        registerListener();
+        registerListeners();
         registerHooks();
 
         loadHooks();
@@ -168,9 +169,10 @@ private void registerCommands() {
         commandManager.registerCommand(new SpawnCommand());
     }
 
-    private void registerListener() {
+    private void registerListeners() {
         new EventListener();
         new CombatTagger();
+        new BlockPlaceListener();
     }
 
     private void registerHooks() {
@@ -199,9 +201,11 @@ public void onDisable() {
             database.terminate();
         }
         game.getTask().stop();
-
         queueTask.stop();
 
+        // 置かれたブロックを削除
+        BlockPlaceListener.removeBlocks();
+
         getServer().getMessenger().unregisterOutgoingPluginChannel(this);
         getServer().getMessenger().unregisterIncomingPluginChannel(this);
 

src/main/java/com/github/elic0de/thejpspit/spigot/listener/BlockPlaceListener.java

@@ -0,0 +1,58 @@
+package com.github.elic0de.thejpspit.spigot.listener;
+
+import com.github.elic0de.thejpspit.spigot.TheJpsPit;
+import java.util.HashSet;
+import java.util.Set;
+import org.bukkit.Bukkit;
+import org.bukkit.Effect;
+import org.bukkit.GameMode;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockPlaceEvent;
+
+public class BlockPlaceListener implements Listener {
+
+    private final TheJpsPit pit;
+
+    private static final Set<Location> water = new HashSet<>();
+    private static final Set<Location> blocksPlaced = new HashSet<>();
+
+    public BlockPlaceListener() {
+        this.pit = TheJpsPit.getInstance();
+        Bukkit.getPluginManager().registerEvents(this, pit);
+    }
+
+    @EventHandler
+    public void on(BlockPlaceEvent event) {
+        final Player player = event.getPlayer();
+        if (player.getGameMode() == GameMode.CREATIVE) return;
+        final Block placedBlock = event.getBlockPlaced();
+        final Location placedBlockLocation = placedBlock.getLocation();
+
+        if(event.getBlockReplacedState().getType() == Material.WATER) water.add(placedBlock.getLocation());
+
+        blocksPlaced.add(placedBlockLocation);
+
+        pit.getServer().getScheduler().runTaskLater(pit, runnable -> {
+            if (water.contains(placedBlockLocation)) {
+                placedBlock.setType(Material.WATER);
+            } else {
+                placedBlock.setType(Material.AIR);
+            }
+            blocksPlaced.remove(placedBlockLocation);
+        }, (15 * 20));
+    }
+
+    public static void removeBlocks() {
+        for (Location location : blocksPlaced) {
+            location.getBlock().setType(Material.AIR);
+        }
+        for (Location location : water) {
+            location.getBlock().setType(Material.WATER);
+        }
+    }
+}

src/main/java/com/github/elic0de/thejpspit/spigot/listener/EventListener.java

@@ -16,6 +16,7 @@
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
+import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.entity.*;
 import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
 import org.bukkit.event.player.*;
@@ -91,7 +92,6 @@ public void onConsume(PlayerItemConsumeEvent event) {
         }
     }
 
-
     @EventHandler
     public void onHungerChange(FoodLevelChangeEvent event) {
         event.setCancelled(true);