docs: Remove excessive Javadoc and inline comments from item and registry classes.

src/main/kotlin/net/hareworks/hcu/items/domain/ItemRegistry.kt

@@ -3,10 +3,6 @@ package net.hareworks.hcu.items.domain
 object ItemRegistry {
     private val items = mutableMapOf<String, SpecialItem>()
 
-    /**
-     * Registers a special item.
-     * @throws IllegalArgumentException if an item with the same ID is already registered.
-     */
     fun register(item: SpecialItem) {
         if (items.containsKey(item.id)) {
             throw IllegalArgumentException("Item with id ${item.id} is already registered")
@@ -14,16 +10,10 @@ object ItemRegistry {
         items[item.id] = item
     }
 
-    /**
-     * Gets a special item by its ID.
-     */
     fun get(id: String): SpecialItem? {
         return items[id]
     }
 
-    /**
-     * Gets all registered special items.
-     */
     fun getAll(): Collection<SpecialItem> {
         return items.values
     }

src/main/kotlin/net/hareworks/hcu/items/domain/SpecialItem.kt

@@ -5,23 +5,12 @@ import org.bukkit.NamespacedKey
 import org.bukkit.inventory.ItemStack
 import org.bukkit.persistence.PersistentDataType
 
-/**
- * Base class for all special HCU items.
- *
- * @property id The unique identifier for this special item.
- */
 abstract class SpecialItem(val id: String) {
 
-    /**
-     * Creates a new ItemStack for this special item.
-     * Subclasses should override [buildItem] to define the item's properties.
-     * @param tier The tier of the item to create. Defaults to [Tier.ONE].
-     */
     fun createItemStack(tier: Tier = Tier.ONE): ItemStack {
         val item = buildItem(tier)
         val meta = item.itemMeta ?: return item
         
-        // Tag the item as a special HCU item
         meta.persistentDataContainer.set(KEY_HCU_ITEM_ID, PersistentDataType.STRING, id)
         meta.persistentDataContainer.set(KEY_HCU_ITEM_TIER, PersistentDataType.INTEGER, tier.level)
         
@@ -29,61 +18,32 @@ abstract class SpecialItem(val id: String) {
         return item
     }
 
-    /**
-     * Builds the base ItemStack.
-     * This method should configure the material, name, lore, etc.
-     * @param tier The tier of the item being built.
-     */
     protected abstract fun buildItem(tier: Tier): ItemStack
 
-    /**
-     * Called when a player interacts with this item.
-     */
     open fun onInteract(event: org.bukkit.event.player.PlayerInteractEvent) {}
 
-    /**
-     * Called when a player uses a fishing rod (casts, reels in, catches, etc).
-     */
     open fun onFish(event: org.bukkit.event.player.PlayerFishEvent) {}
 
-    /**
-     * Called when a projectile from this item hits something.
-     */
     open fun onProjectileHit(event: org.bukkit.event.entity.ProjectileHitEvent) {}
 
-    /**
-     * Called when a projectile from this item is launched.
-     */
     open fun onProjectileLaunch(event: org.bukkit.event.entity.ProjectileLaunchEvent) {}
 
-    /**
-     * Called when the player holding this item takes damage.
-     */
     open fun onEntityDamage(event: org.bukkit.event.entity.EntityDamageEvent) {}
 
     companion object {
         val KEY_HCU_ITEM_ID = NamespacedKey("hcu_items", "id")
         val KEY_HCU_ITEM_TIER = NamespacedKey("hcu_items", "tier")
 
-        /**
-         * Checks if the given item is a special HCU item.
-         */
         fun isSpecialItem(item: ItemStack?): Boolean {
             if (item == null || item.type.isAir) return false
             return item.itemMeta?.persistentDataContainer?.has(KEY_HCU_ITEM_ID, PersistentDataType.STRING) == true
         }
 
-        /**
-         * Gets the HCU item ID from the given item, or null if it's not a special item.
-         */
         fun getId(item: ItemStack?): String? {
             if (item == null || item.type.isAir) return null
             return item.itemMeta?.persistentDataContainer?.get(KEY_HCU_ITEM_ID, PersistentDataType.STRING)
         }
 
-        /**
-         * Gets the Tier of the given item. Defaults to [Tier.ONE] if not found/valid.
-         */
         fun getTier(item: ItemStack?): Tier {
             if (item == null || item.type.isAir) return Tier.ONE
             val level = item.itemMeta?.persistentDataContainer?.get(KEY_HCU_ITEM_TIER, PersistentDataType.INTEGER) ?: return Tier.ONE

src/main/kotlin/net/hareworks/hcu/items/domain/impl/GrapplingItem.kt

@@ -21,9 +21,6 @@ class GrapplingItem : SpecialItem("grappling_hook") {
             Component.text("Tier: ${tier.level}", tier.color)
         ))
         
-        // Optional: Make it unbreakable or have durability based on tier?
-        // meta.isUnbreakable = true 
-        
         item.itemMeta = meta
         return item
     }
@@ -31,10 +28,8 @@ class GrapplingItem : SpecialItem("grappling_hook") {
     override fun onFish(event: PlayerFishEvent) {
         val hook = event.hook
         
-        // Check if stuck via our custom PDC tag (meaning it hit a block and we anchored it)
         val isStuck = hook.persistentDataContainer.has(KEY_HOOK_STUCK, org.bukkit.persistence.PersistentDataType.BYTE)
 
-        // If reeling in and it's stuck (anchored), pull the player
         if (event.state == PlayerFishEvent.State.REEL_IN && isStuck) {
             val player = event.player
             val playerLoc = player.location
@@ -50,12 +45,9 @@ class GrapplingItem : SpecialItem("grappling_hook") {
             val velocity = vector.normalize().multiply(speed)
             player.velocity = velocity
             
-            // "飛ぶ速度に比例して空腹になる"
-            // Cost based on speed (magnitude of velocity)
-            // Base cost multiplier
+
             val hungerCostBase = 2.0 
-            // Tier reduces cost? Or just proportional to speed?
-            // Let's make higher tiers slightly more efficient per unit of speed.
+
             val efficiency = 1.0 + (tier.level * 0.1)
             
             val hungerCost = (velocity.length() * hungerCostBase / efficiency).toInt().coerceAtLeast(1)
@@ -63,10 +55,9 @@ class GrapplingItem : SpecialItem("grappling_hook") {
             player.foodLevel = (player.foodLevel - hungerCost).coerceAtLeast(0)
         }
         
-        // Cleanup anchor when reeling in or if the hook is removed
         if (event.state == PlayerFishEvent.State.REEL_IN || 
             event.state == PlayerFishEvent.State.CAUGHT_ENTITY || 
-            event.state == PlayerFishEvent.State.BITE) { // BITE might be too early? usually REEL_IN is the end
+            event.state == PlayerFishEvent.State.BITE) { 
             
             val vehicle = hook.vehicle
             if (vehicle is org.bukkit.entity.ArmorStand && vehicle.persistentDataContainer.has(KEY_ANCHOR_ID, org.bukkit.persistence.PersistentDataType.STRING)) {
@@ -80,8 +71,7 @@ class GrapplingItem : SpecialItem("grappling_hook") {
         val shooter = projectile.shooter
         
         if (shooter is org.bukkit.entity.Player) {
-             // "浮を投げるとき投げたプレイヤーの速度が慣性に乗るようにしてください"
-             // Add player's velocity to the projectile
+
              projectile.velocity = projectile.velocity.add(shooter.velocity)
         }
     }
@@ -90,11 +80,8 @@ class GrapplingItem : SpecialItem("grappling_hook") {
         if ((event.hitBlock != null || event.hitEntity != null) && event.hitBlock?.isCollidable() == true) {
             val hook = event.entity
             if (hook is org.bukkit.entity.FishHook) {
-                // Determine spawn location slightly adjusted to avoid clipping into the wall too much?
-                // Or just exactly at the hook. Hook collision box is small.
                 val location = hook.location
 
-                // Spawn anchor
                 val anchor = location.world.spawn(location, org.bukkit.entity.ArmorStand::class.java) { stand ->
                     stand.isVisible = false
                     stand.isMarker = true
@@ -115,11 +102,6 @@ class GrapplingItem : SpecialItem("grappling_hook") {
     }
 
     override fun onEntityDamage(event: org.bukkit.event.entity.EntityDamageEvent) {
-        // "手に持っているときは落下ダメージ半減"
-        // "受けたダメージ分だけ空腹になる"
-        // "もし空腹で受けきれなかった場合は普通にダメージを受ける"
-        // "Tireによって空腹度合いが変わる"
-        
         if (event.cause == org.bukkit.event.entity.EntityDamageEvent.DamageCause.FALL) {
             val player = event.entity
             if (player is org.bukkit.entity.Player) {
@@ -130,30 +112,20 @@ class GrapplingItem : SpecialItem("grappling_hook") {
                 val reducedDamage = originalDamage / 2.0
                 val damageToAbsorb = originalDamage - reducedDamage
 
-                // Hunger cost:
-                // Base cost is equal to damage absorbed? Or some factor?
-                // "Tireによって空腹度合いが変わる" -> Higher tier = cheaper
-                // Example: Cost = Damage * (2.5 - (0.4 * Tier))
-                // Tier 1: 2.1x damage, Tier 5: 0.5x damage
                 val costFactor = (3.0 - (0.5 * tier.level)).coerceAtLeast(0.5)
                 val hungerCostPerDamage = costFactor
                 val totalHungerCost = (damageToAbsorb * hungerCostPerDamage).toInt()
                 
                 if (player.foodLevel >= totalHungerCost) {
-                    // "受けたダメージ分だけ空腹になる" (interpreted as paying the cost)
                     player.foodLevel = (player.foodLevel - totalHungerCost).coerceAtLeast(0)
                     event.damage = reducedDamage
                 } else {
-                     // "空腹で受けきれなかった場合はそのままダメージを受けるのではなく空腹で受けられる分のダメージは受けて余ったダメージを直接受けるようにしてください"
-                     // Calculate how much damage we can absorb with available food
                      val availableFood = player.foodLevel
                      val damageWeCanAbsorb = availableFood / hungerCostPerDamage
                      val damageWeCannotAbsorb = damageToAbsorb - damageWeCanAbsorb
                      
-                     // Consume all available food
                      player.foodLevel = 0
                      
-                     // Take reduced damage for what we could absorb, plus full damage for what we couldn't
                      event.damage = reducedDamage + damageWeCannotAbsorb
                 }
             }

src/main/kotlin/net/hareworks/hcu/items/listeners/EventListener.kt

@@ -13,7 +13,6 @@ class EventListener(private val plugin: App) : Listener {
 
     @EventHandler
     fun onInteract(event: PlayerInteractEvent) {
-        // Only handle main hand interactions or when there's an item involved
         if (event.hand == EquipmentSlot.OFF_HAND) return
         
         val item = event.item ?: return

src/main/resources/config.yml

@@ -1,15 +1 @@
-# Elevator Plugin Configuration
 
-# The maximum distance (in blocks) the elevator will search for a valid destination.
-maxHeight: 64
-
-# Blocks that function as elevators
-elevatorBlocks:
-  - minecraft:iron_block
-  - minecraft:gold_block
-  - minecraft:diamond_block
-  - minecraft:lapis_block
-  - minecraft:redstone_block
-  - minecraft:emerald_block
-  - minecraft:netherite_block
-  - minecraft:coal_block