Fixes some code style issues

Core/src/main/java/com/craftaro/core/world/SItemStack.java

@@ -23,7 +23,7 @@ public class SItemStack {
 
     public SItemStack(CompatibleHand hand, Player player) {
         this.item = hand.getItem(player);
-        this.sItem = Nms.getImplementations().getWorld().getItemStack(item);
+        this.sItem = Nms.getImplementations().getWorld().getItemStack(this.item);
     }
 
     public ItemStack addDamage(Player player, int damage) {
@@ -37,24 +37,24 @@ public class SItemStack {
      * @param damage the amount of damage to apply to the item
      */
     public ItemStack addDamage(Player player, int damage, boolean respectVanillaUnbreakingEnchantments) {
-        if (item == null) {
+        if (this.item == null) {
             return null;
         }
 
-        if (item.getItemMeta() == null) {
-            return item;
+        if (this.item.getItemMeta() == null) {
+            return this.item;
         }
 
-        int maxDurability = item.getType().getMaxDurability();
+        int maxDurability = this.item.getType().getMaxDurability();
         int durability;
 
         if (ServerVersion.isServerVersionBelow(ServerVersion.V1_11)
-                ? Nms.getImplementations().getNbt().of(item).has("Unbreakable")
-                : item.getItemMeta().isUnbreakable()) {
-            return item;
+                ? Nms.getImplementations().getNbt().of(this.item).has("Unbreakable")
+                : this.item.getItemMeta().isUnbreakable()) {
+            return this.item;
         } else if (ServerVersion.isServerVersionAtLeast(ServerVersion.V1_13)) {
             // ItemStack.setDurability(short) still works in 1.13-1.14, but use these methods now
-            ItemMeta meta = item.getItemMeta();
+            ItemMeta meta = this.item.getItemMeta();
             if (meta instanceof Damageable) {
                 Damageable damageable = ((Damageable) meta);
 
@@ -63,25 +63,25 @@ public class SItemStack {
                 }
 
                 damageable.setDamage(((Damageable) meta).getDamage() + damage);
-                item.setItemMeta(meta);
+                this.item.setItemMeta(meta);
                 durability = damageable.getDamage();
             } else {
-                return item;
+                return this.item;
             }
         } else {
             if (respectVanillaUnbreakingEnchantments) {
-                damage = shouldApplyDamage(item.getEnchantmentLevel(Enchantment.DURABILITY), damage);
+                damage = shouldApplyDamage(this.item.getEnchantmentLevel(Enchantment.DURABILITY), damage);
             }
 
-            item.setDurability((short) Math.max(0, item.getDurability() + damage));
-            durability = item.getDurability();
+            this.item.setDurability((short) Math.max(0, this.item.getDurability() + damage));
+            durability = this.item.getDurability();
         }
 
         if (durability >= maxDurability && player != null) {
             destroy(player);
         }
 
-        return item;
+        return this.item;
     }
 
     public void destroy(Player player) {
@@ -89,15 +89,15 @@ public class SItemStack {
     }
 
     public void destroy(Player player, int amount) {
-        PlayerItemBreakEvent breakEvent = new PlayerItemBreakEvent(player, item);
+        PlayerItemBreakEvent breakEvent = new PlayerItemBreakEvent(player, this.item);
         Bukkit.getServer().getPluginManager().callEvent(breakEvent);
 
-        sItem.breakItem(player, amount);
+        this.sItem.breakItem(player, amount);
         CompatibleSound.ENTITY_ITEM_BREAK.play(player);
     }
 
     public ItemStack getItem() {
-        return item;
+        return this.item;
     }
 
     private static int shouldApplyDamage(int unbreakingEnchantLevel, int damageAmount) {

Core/src/main/java/com/craftaro/core/world/SSpawner.java

@@ -41,7 +41,7 @@ public class SSpawner {
      */
     public int spawn(int amountToSpawn, String particle, Set<CompatibleMaterial> canSpawnOn, SpawnedEntity spawned,
                      EntityType... types) {
-        if (location.getWorld() == null) {
+        if (this.location.getWorld() == null) {
             return 0;
         }
 
@@ -60,7 +60,7 @@ public class SSpawner {
         int amountSpawned = 0;
         while (spawnCountUsed-- > 0) {
             EntityType type = types[ThreadLocalRandom.current().nextInt(types.length)];
-            LivingEntity entity = sSpawner.spawnEntity(type, particle, spawned, canSpawnOn);
+            LivingEntity entity = this.sSpawner.spawnEntity(type, particle, spawned, canSpawnOn);
 
             if (entity != null) {
                 // If this entity is indeed stackable then spawn a single stack with the desired stack size.
@@ -79,6 +79,6 @@ public class SSpawner {
     }
 
     public Location getLocation() {
-        return location;
+        return this.location;
     }
 }

Core/src/main/java/com/craftaro/core/world/SWorld.java

@@ -29,13 +29,13 @@ public class SWorld {
 
     public List<LivingEntity> getLivingEntities() {
         if (ServerVersion.isServerVersionBelow(ServerVersion.V1_17)) {
-            return world.getLivingEntities();
+            return this.world.getLivingEntities();
         }
 
-        return sWorld.getLivingEntities();
+        return this.sWorld.getLivingEntities();
     }
 
     public World getWorld() {
-        return world;
+        return this.world;
     }
 }