From ac1128506ebe143106ac0859e168ccb7a11e7cdd Mon Sep 17 00:00:00 2001
From: Florian CUNY <poslovitch@gmail.com>
Date: Mon, 4 Mar 2019 08:29:43 +0100
Subject: [PATCH] Added Flags#OFFLINE_GROWTH

#580
---
 .../worldsettings/OfflineGrowthListener.java  | 31 +++++++++++++++++++
 .../world/bentobox/bentobox/lists/Flags.java  |  9 ++++++
 2 files changed, 40 insertions(+)
 create mode 100644 src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/OfflineGrowthListener.java

diff --git a/src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/OfflineGrowthListener.java b/src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/OfflineGrowthListener.java
new file mode 100644
index 000000000..5a86d5caf
--- /dev/null
+++ b/src/main/java/world/bentobox/bentobox/listeners/flags/worldsettings/OfflineGrowthListener.java
@@ -0,0 +1,31 @@
+package world.bentobox.bentobox.listeners.flags.worldsettings;
+
+import org.bukkit.block.data.Ageable;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.block.BlockGrowEvent;
+import world.bentobox.bentobox.api.flags.FlagListener;
+import world.bentobox.bentobox.lists.Flags;
+
+/**
+ * Handles {@link Flags#OFFLINE_GROWTH} flag.
+ * @author Poslovitch
+ * @since 1.4.0
+ */
+public class OfflineGrowthListener extends FlagListener {
+
+    @EventHandler(priority = EventPriority.LOW, ignoreCancelled = true)
+    public void onCropGrow(BlockGrowEvent e) {
+        if (!getIWM().inWorld(e.getBlock().getWorld()) || Flags.OFFLINE_GROWTH.isSetForWorld(e.getBlock().getWorld())) {
+            // We do not want to run any check if this is not the right world or if it is allowed.
+            return;
+        }
+
+        if (!(e.getBlock() instanceof Ageable)) {
+            // Do nothing if the block is not "ageable" (and therefore not a crop).
+            return;
+        }
+
+        e.setCancelled(true);
+    }
+}
diff --git a/src/main/java/world/bentobox/bentobox/lists/Flags.java b/src/main/java/world/bentobox/bentobox/lists/Flags.java
index 8885c1632..5bb75f8c3 100644
--- a/src/main/java/world/bentobox/bentobox/lists/Flags.java
+++ b/src/main/java/world/bentobox/bentobox/lists/Flags.java
@@ -49,6 +49,7 @@ import world.bentobox.bentobox.listeners.flags.worldsettings.ItemFrameListener;
 import world.bentobox.bentobox.listeners.flags.worldsettings.LiquidsFlowingOutListener;
 import world.bentobox.bentobox.listeners.flags.worldsettings.NaturalSpawningOutsideRangeListener;
 import world.bentobox.bentobox.listeners.flags.worldsettings.ObsidianScoopingListener;
+import world.bentobox.bentobox.listeners.flags.worldsettings.OfflineGrowthListener;
 import world.bentobox.bentobox.listeners.flags.worldsettings.OfflineRedstoneListener;
 import world.bentobox.bentobox.listeners.flags.worldsettings.PistonPushListener;
 import world.bentobox.bentobox.listeners.flags.worldsettings.RemoveMobsListener;
@@ -322,6 +323,14 @@ public final class Flags {
     public static final Flag OFFLINE_REDSTONE = new Flag.Builder("OFFLINE_REDSTONE", Material.COMPARATOR).type(Type.WORLD_SETTING)
             .listener(new OfflineRedstoneListener()).defaultSetting(true).build();
 
+    /**
+     * If disabled, prevents crops/plants from growing on islands whose members are offline.
+     * @since 1.4.0
+     * @see OfflineGrowthListener
+     */
+    public static final Flag OFFLINE_GROWTH = new Flag.Builder("OFFLINE_GROWTH", Material.WHEAT_SEEDS).type(Type.WORLD_SETTING)
+            .listener(new OfflineGrowthListener()).defaultSetting(true).build();
+
     public static final Flag CLEAN_SUPER_FLAT = new Flag.Builder("CLEAN_SUPER_FLAT", Material.BEDROCK).type(Type.WORLD_SETTING)
             .listener(new CleanSuperFlatListener()).build();