Immature crop replanting, green thumb tweaks, replant accidental break

protection

src/main/java/com/gmail/nossr50/runnables/skills/DelayedCropReplant.java

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+package com.gmail.nossr50.runnables.skills;
+
+import com.gmail.nossr50.mcMMO;
+import com.gmail.nossr50.util.skills.ParticleEffectUtils;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockState;
+import org.bukkit.block.data.Ageable;
+import org.bukkit.event.block.BlockBreakEvent;
+import org.bukkit.scheduler.BukkitRunnable;
+
+public class DelayedCropReplant extends BukkitRunnable {
+
+    private final int desiredCropAge;
+    private final Location cropLocation;
+    private final Material cropMaterial;
+    private boolean wasImmaturePlant;
+    private final BlockBreakEvent blockBreakEvent;
+
+    /**
+     * Replants a crop after a delay setting the age to desiredCropAge
+     * @param cropState target {@link BlockState}
+     * @param desiredCropAge desired age of the crop
+     */
+    public DelayedCropReplant(BlockBreakEvent blockBreakEvent, BlockState cropState, int desiredCropAge, boolean wasImmaturePlant) {
+        //The plant was either immature or something cancelled the event, therefor we need to treat it differently
+        this.blockBreakEvent = blockBreakEvent;
+        this.wasImmaturePlant = wasImmaturePlant;
+        this.cropMaterial = cropState.getType();
+        this.desiredCropAge = desiredCropAge;
+        this.cropLocation = cropState.getLocation();
+    }
+
+    @Override
+    public void run() {
+        Block cropBlock = cropLocation.getBlock();
+        BlockState currentState = cropBlock.getState();
+
+        if(blockBreakEvent.isCancelled()) {
+            wasImmaturePlant = true;
+        }
+
+        //Two kinds of air in Minecraft
+        if(currentState.getType().equals(Material.AIR) || currentState.getType().equals(Material.CAVE_AIR)) {
+            //The space is not currently occupied by a block so we can fill it
+            cropBlock.setType(cropMaterial);
+
+            //Get new state (necessary?)
+            BlockState newState = cropBlock.getState();
+            newState.setType(cropMaterial);
+            newState.update();
+            Ageable ageable = (Ageable) newState.getBlockData();
+
+            //Crop age should always be 0 if the plant was immature
+            if(wasImmaturePlant) {
+                ageable.setAge(0);
+            } else {
+                //Otherwise make the plant the desired age
+                ageable.setAge(desiredCropAge);
+            }
+
+            //Age the crop
+            newState.setBlockData(ageable);
+
+            //Play an effect
+            ParticleEffectUtils.playGreenThumbEffect(cropLocation);
+
+            //Remove the metadata marking the block as recently replanted
+            new removePlantMeta(blockBreakEvent.getBlock().getLocation()).runTaskLater(mcMMO.p, 20);
+        }
+
+    }
+
+    private class removePlantMeta extends BukkitRunnable {
+
+        private final Location cropLoc;
+
+        public removePlantMeta(Location cropLoc) {
+            this.cropLoc = cropLoc;
+        }
+
+        @Override
+        public void run() {
+            Block cropBlock = cropLoc.getBlock();
+            cropBlock.removeMetadata(mcMMO.REPLANT_META_KEY, mcMMO.p);
+        }
+    }
+
+}