[Beta] Snapshot v20220425

Changelog:
- Added RandomEffect, which gives a user a random positive potion effect on respawn or teleport.
- Implemented a class loading system with reflections to dynamically load all listeners.
- Adjusted rarity values in the config.yml
- Added a positiveEffects list to ListBox for RandomEffect event
- Adjusted the behavior of the BlockDrops event.

src/main/java/io/github/simplex/luck/FeelingLucky.java

@@ -4,10 +4,13 @@ import io.github.simplex.luck.listener.*;
 import io.github.simplex.luck.player.PlayerConfig;
 import io.github.simplex.luck.player.PlayerHandler;
 import io.github.simplex.luck.util.LuckCMD;
+import io.github.simplex.luck.util.SneakyWorker;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
@@ -64,18 +67,16 @@ public final class FeelingLucky extends JavaPlugin {
     }
 
     private void registerListeners() {
-        new BlockDrops(this);
-        new BonemealFullCrop(this);
-        new CheatDeath(this);
-        new EnchantmentBoost(this);
-        new ExpBoost(this);
-        new IllOmen(this);
-        new ItemDrops(this);
-        new PlayerListener(this);
-        new RestoreHunger(this);
-        new TakeDamage(this);
-        new UnbreakableTool(this);
-        new VillagerInventory(this);
+        try {
+            Class<?>[] listeners = SneakyWorker.getClasses("io.github.simplex.luck.listener");
+            Arrays.stream(listeners).forEach(l -> {
+                if (AbstractListener.class.isAssignableFrom(l)) {
+                    SneakyWorker.sneakyTry(() -> l.getDeclaredConstructor(FeelingLucky.class).newInstance(this));
+                }
+            });
+        } catch (IOException | ClassNotFoundException ex) {
+            getLogger().severe(ex.getMessage());
+        }
     }
 
     public PlayerHandler getHandler() {

src/main/java/io/github/simplex/luck/listener/BlockDrops.java

@@ -21,7 +21,8 @@ public final class BlockDrops extends AbstractListener {
         Luck luck = getHandler().getLuckContainer(player);
         List<Item> items = event.getItems();
         if (luck.quickRNG(luck.getPercentage()) && doesQualify("block_drops", luck.getPercentage())) {
-            items.forEach(SneakyWorker::move);
+            event.getItems().clear();
+            event.getItems().addAll(items.stream().map(SneakyWorker::move).toList());
         }
     }
 }

src/main/java/io/github/simplex/luck/listener/RandomEffect.java

@@ -0,0 +1,49 @@
+package io.github.simplex.luck.listener;
+
+import io.github.simplex.lib.MiniComponent;
+import io.github.simplex.luck.FeelingLucky;
+import io.github.simplex.luck.player.Luck;
+import io.github.simplex.luck.util.ListBox;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.player.PlayerRespawnEvent;
+import org.bukkit.event.player.PlayerTeleportEvent;
+import org.bukkit.potion.PotionEffect;
+
+import java.util.List;
+
+public class RandomEffect extends AbstractListener {
+    public RandomEffect(FeelingLucky plugin) {
+        super(plugin);
+    }
+
+    @EventHandler
+    public void giveRandomEffect(PlayerRespawnEvent respawn) {
+        Player player = respawn.getPlayer();
+        Luck luck = plugin.getHandler().getLuckContainer(player);
+
+        List<PotionEffect> effectList = ListBox.positiveEffects.stream().map(m -> m.createEffect(120, 5)).toList();
+        int size = effectList.size();
+        PotionEffect random = effectList.get(Luck.RNG().nextInt(size - 1));
+
+        if (luck.quickRNG(luck.getPercentage()) && doesQualify("random_effect", luck.getValue())) {
+            player.addPotionEffect(random);
+            player.sendMessage(MiniComponent.info("Thanks to luck, a random positive potion effect has been applied to you."));
+        }
+    }
+
+    @EventHandler
+    public void giveRandomEffect(PlayerTeleportEvent tp) {
+        Player player = tp.getPlayer();
+        Luck luck = plugin.getHandler().getLuckContainer(player);
+
+        List<PotionEffect> effectList = ListBox.positiveEffects.stream().map(m -> m.createEffect(120, 5)).toList();
+        int size = effectList.size();
+        PotionEffect random = effectList.get(Luck.RNG().nextInt(size - 1));
+
+        if (luck.quickRNG(luck.getPercentage()) && doesQualify("random_effect", luck.getValue())) {
+            player.addPotionEffect(random);
+            player.sendMessage(MiniComponent.info("Thanks to luck, a random positive potion effect has been applied to you."));
+        }
+    }
+}

src/main/java/io/github/simplex/luck/util/ListBox.java

@@ -6,6 +6,7 @@ import org.bukkit.inventory.ItemStack;
 import org.bukkit.potion.PotionEffectType;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 public class ListBox {
@@ -36,6 +37,25 @@ public class ListBox {
         add(PotionEffectType.WEAKNESS);
     }};
 
+    public static final List<PotionEffectType> positiveEffects = new ArrayList<>() {{
+        add(PotionEffectType.DAMAGE_RESISTANCE);
+        add(PotionEffectType.DOLPHINS_GRACE);
+        add(PotionEffectType.INCREASE_DAMAGE);
+        add(PotionEffectType.ABSORPTION);
+        add(PotionEffectType.SATURATION);
+        add(PotionEffectType.FIRE_RESISTANCE);
+        add(PotionEffectType.WATER_BREATHING);
+        add(PotionEffectType.SPEED);
+        add(PotionEffectType.SLOW_FALLING);
+        add(PotionEffectType.REGENERATION);
+        add(PotionEffectType.NIGHT_VISION);
+        add(PotionEffectType.LUCK);
+        add(PotionEffectType.JUMP);
+        add(PotionEffectType.INVISIBILITY);
+        add(PotionEffectType.HEALTH_BOOST);
+        add(PotionEffectType.FAST_DIGGING);
+    }};
+
     public static final List<ItemStack> foods = new ArrayList<>() {{
         add(new ItemStack(Material.COOKED_BEEF));
         add(new ItemStack(Material.COOKED_CHICKEN));

src/main/java/io/github/simplex/luck/util/SneakyWorker.java

@@ -1,10 +1,18 @@
 package io.github.simplex.luck.util;
 
+import io.github.simplex.luck.listener.AbstractListener;
 import io.github.simplex.luck.player.Luck;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Item;
 import org.bukkit.inventory.ItemStack;
 
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+
 public class SneakyWorker {
     public static void sneakyTry(SneakyTry sneakyTry) {
         try {
@@ -25,11 +33,48 @@ public class SneakyWorker {
         }
     }
 
-    public static void move(Item item) {
+    public static Class[] getClasses(String packageName) throws ClassNotFoundException, IOException {
+        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+        assert classLoader != null;
+        String path = packageName.replace(".", "/");
+        Enumeration<URL> resources = classLoader.getResources(path);
+        List<File> dirs = new ArrayList<>();
+        while (resources.hasMoreElements()) {
+            URL resource = resources.nextElement();
+            dirs.add(new File(resource.getFile()));
+        }
+        ArrayList<Class> classes = new ArrayList<>();
+        for (File directory : dirs) {
+            classes.addAll(findClasses(directory, packageName));
+        }
+        return classes.toArray(new Class[classes.size()]);
+    }
+
+    private static List<Class<?>> findClasses(File directory, String packageName) throws ClassNotFoundException {
+        List<Class<?>> classes = new ArrayList<>();
+        if (!directory.exists()) {
+            return classes;
+        }
+
+        File[] files = directory.listFiles();
+        assert files != null;
+        for (File file : files) {
+            if (file.isDirectory()) {
+                assert !file.getName().contains(".");
+                classes.addAll(findClasses(file, packageName + "." + file.getName().substring(0, file.getName().length() - 6)));
+            } else if (file.getName().endsWith(".class")) {
+                classes.add(Class.forName(packageName + "." + file.getName().substring(0, file.getName().length() - 6)));
+            }
+        }
+        return classes;
+    }
+
+    public static Item move(Item item) {
         ItemStack stack = item.getItemStack();
         int rng = (Luck.RNG().nextInt(2, 5)) + stack.getAmount();
         stack.setAmount(rng);
         item.setItemStack(stack);
+        return item;
     }
 
     public interface SneakyTry {

src/main/resources/config.yml

@@ -15,12 +15,12 @@ low_rarity_chance: 64.0
 # These entries are case-sensitive.
 
 block_drops: LOW
-bonemeal: LOW
+bonemeal: MED
 cheat_death: MED
 enchanting: HIGH
 experience: HIGH
 item_drops: LOW
 random_effect: HIGH
-restore_hunger: MED
+restore_hunger: NONE
 take_damage: MED
 unbreakable: HIGH