Add leaf-decay flag

Stop leaves from decaying.

Bukkit/src/main/java/com/plotsquared/bukkit/listener/BlockEventListener.java

@@ -48,6 +48,7 @@ import com.plotsquared.core.plot.flag.implementations.IceFormFlag;
 import com.plotsquared.core.plot.flag.implementations.IceMeltFlag;
 import com.plotsquared.core.plot.flag.implementations.InstabreakFlag;
 import com.plotsquared.core.plot.flag.implementations.KelpGrowFlag;
+import com.plotsquared.core.plot.flag.implementations.LeafDecayFlag;
 import com.plotsquared.core.plot.flag.implementations.LiquidFlowFlag;
 import com.plotsquared.core.plot.flag.implementations.MycelGrowFlag;
 import com.plotsquared.core.plot.flag.implementations.PlaceFlag;
@@ -96,6 +97,7 @@ import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.block.BlockRedstoneEvent;
 import org.bukkit.event.block.BlockSpreadEvent;
 import org.bukkit.event.block.EntityBlockFormEvent;
+import org.bukkit.event.block.LeavesDecayEvent;
 import org.bukkit.event.world.StructureGrowEvent;
 import org.bukkit.material.Directional;
 import org.bukkit.projectiles.BlockProjectileSource;
@@ -1082,4 +1084,23 @@ public class BlockEventListener implements Listener {
             }
         }
     }
+
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true) public void onLeavesDecay(LeavesDecayEvent event) {
+        Block block = event.getBlock();
+        Location location = BukkitUtil.adapt(block.getLocation());
+
+        PlotArea area = location.getPlotArea();
+        if (area == null) {
+            return;
+        }
+
+        Plot plot = location.getOwnedPlot();
+        if (plot == null || !plot.getFlag(LeafDecayFlag.class)) {
+            if (plot != null) {
+                plot.debug("Leaf decaying was cancelled because leaf-decay = true");
+            }
+            event.setCancelled(true);
+        }
+
+    }
 }

Core/src/main/java/com/plotsquared/core/plot/flag/GlobalFlagContainer.java

@@ -68,6 +68,7 @@ import com.plotsquared.core.plot.flag.implementations.ItemDropFlag;
 import com.plotsquared.core.plot.flag.implementations.KeepFlag;
 import com.plotsquared.core.plot.flag.implementations.KeepInventoryFlag;
 import com.plotsquared.core.plot.flag.implementations.KelpGrowFlag;
+import com.plotsquared.core.plot.flag.implementations.LeafDecayFlag;
 import com.plotsquared.core.plot.flag.implementations.LiquidFlowFlag;
 import com.plotsquared.core.plot.flag.implementations.MiscBreakFlag;
 import com.plotsquared.core.plot.flag.implementations.MiscCapFlag;
@@ -187,6 +188,7 @@ public final class GlobalFlagContainer extends FlagContainer {
         this.addFlag(MiscInteractFlag.MISC_INTERACT_FALSE);
         this.addFlag(KeepInventoryFlag.KEEP_INVENTORY_FALSE);
         this.addFlag(PreventCreativeCopyFlag.PREVENT_CREATIVE_COPY_FALSE);
+        this.addFlag(LeafDecayFlag.LEAF_DECAY_TRUE);
 
         // Enum Flags
         this.addFlag(WeatherFlag.PLOT_WEATHER_FLAG_OFF);

Core/src/main/java/com/plotsquared/core/plot/flag/implementations/LeafDecayFlag.java

@@ -0,0 +1,46 @@
+/*
+ *       _____  _       _    _____                                _
+ *      |  __ \| |     | |  / ____|                              | |
+ *      | |__) | | ___ | |_| (___   __ _ _   _  __ _ _ __ ___  __| |
+ *      |  ___/| |/ _ \| __|\___ \ / _` | | | |/ _` | '__/ _ \/ _` |
+ *      | |    | | (_) | |_ ____) | (_| | |_| | (_| | | |  __/ (_| |
+ *      |_|    |_|\___/ \__|_____/ \__, |\__,_|\__,_|_|  \___|\__,_|
+ *                                    | |
+ *                                    |_|
+ *            PlotSquared plot management system for Minecraft
+ *                  Copyright (C) 2021 IntellectualSites
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU 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 General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.plotsquared.core.plot.flag.implementations;
+
+import com.plotsquared.core.configuration.caption.TranslatableCaption;
+import com.plotsquared.core.plot.flag.types.BooleanFlag;
+
+import javax.annotation.Nonnull;
+
+public class LeafDecayFlag extends BooleanFlag<LeafDecayFlag> {
+
+    public static final LeafDecayFlag LEAF_DECAY_TRUE = new LeafDecayFlag(true);
+    public static final LeafDecayFlag LEAF_DECAY_FALSE = new LeafDecayFlag(false);
+
+    private LeafDecayFlag(boolean value) {
+        super(value, TranslatableCaption.of("flags.flag_description_leaf_decay"));
+    }
+
+    @Override protected LeafDecayFlag flagOf(@Nonnull Boolean value) {
+        return value ? LEAF_DECAY_TRUE : LEAF_DECAY_FALSE;
+    }
+
+}

Core/src/main/resources/lang/messages_en.json

@@ -653,6 +653,7 @@
   "flags.flag_description_keep": "<gray>Prevents the plot from expiring. Can be set to: true, false, the number of milliseconds to keep the plot for or a timestamp (3w 2d 5h).</gray>",
   "flags.flag_description_keep_inventory": "<gray>Prevents players from dropping their items when they die inside of the plot.</gray>",
   "flags.flag_description_prevent_creative_copy": "<gray>Prevents people from copying item NBT data in the plot unless they're added as members.</gray>",
+  "flags.flag_description_leaf_decay": "<gray>Set to `false` to prevent leaves from decaying.",
 
   "flags.flag_error_boolean": "<prefix>Flag value must be a boolean (true | false).",
   "flags.flag_error_enum": "<prefix>Must be one of: <list>",