feat: Add double jump component

src/main/kotlin/net/hareworks/hcu/items/App.kt

@@ -9,6 +9,7 @@ import net.hareworks.hcu.items.registry.ComponentRegistry
 import net.hareworks.hcu.items.content.items.TestItem 
 import net.hareworks.hcu.items.content.items.GrapplingItem
 import net.hareworks.hcu.items.content.components.GliderComponent
+import net.hareworks.hcu.items.content.components.DoubleJumpComponent
 
 import org.bukkit.permissions.PermissionDefault
 import org.bukkit.plugin.java.JavaPlugin
@@ -36,7 +37,8 @@ public class App : JavaPlugin() {
 		ItemRegistry.register(GrapplingItem())
 		
 		// Register Components
-		val gliderComponent = GliderComponent(this)
-		ComponentRegistry.register(gliderComponent)
+		ComponentRegistry.register(GliderComponent(this))
+		ComponentRegistry.register(DoubleJumpComponent(this))
+
 	}
 }

src/main/kotlin/net/hareworks/hcu/items/api/component/CustomComponent.kt

@@ -18,4 +18,5 @@ interface CustomComponent {
     fun onEntityDamage(event: org.bukkit.event.entity.EntityDamageEvent) {}
     fun onPlayerMove(event: org.bukkit.event.player.PlayerMoveEvent) {}
     fun onToggleSneak(player: org.bukkit.entity.Player, item: org.bukkit.inventory.ItemStack, event: org.bukkit.event.player.PlayerToggleSneakEvent) {}
+    fun onToggleGlide(player: org.bukkit.entity.Player, item: org.bukkit.inventory.ItemStack, event: org.bukkit.event.entity.EntityToggleGlideEvent) {}
 }

src/main/kotlin/net/hareworks/hcu/items/content/components/DoubleJumpComponent.kt

@@ -0,0 +1,72 @@
+package net.hareworks.hcu.items.content.components
+
+import net.hareworks.hcu.items.App
+import net.hareworks.hcu.items.api.Tier
+import net.hareworks.hcu.items.api.component.AbstractComponent
+import net.hareworks.hcu.items.api.component.EquippableComponent
+import net.kyori.adventure.text.Component
+import net.kyori.adventure.text.format.NamedTextColor
+import org.bukkit.GameMode
+import org.bukkit.Material
+import org.bukkit.Particle
+import org.bukkit.Sound
+import org.bukkit.entity.Player
+import org.bukkit.event.entity.EntityToggleGlideEvent
+import org.bukkit.inventory.ItemStack
+import org.bukkit.util.Vector
+
+class DoubleJumpComponent(private val plugin: App) : AbstractComponent(plugin, "double_jump_component"), EquippableComponent {
+
+    override val displayName: String = "Double Jump"
+    override val maxTier: Int = 3
+
+    override fun apply(item: ItemStack, tier: Tier?) {
+        if (isBoots(item.type)) {
+            super.apply(item, tier)
+        }
+    }
+
+    private fun isBoots(material: Material): Boolean {
+        // Only apply to boots
+        return material.name.endsWith("_BOOTS")
+    }
+
+    override fun onTick(player: Player, item: ItemStack) {
+        // No custom tick login currently
+    }
+
+    override fun onToggleGlide(player: Player, item: ItemStack, event: EntityToggleGlideEvent) {
+        if (player.gameMode == GameMode.CREATIVE || player.gameMode == GameMode.SPECTATOR) return
+        
+        // When user initiates gliding (pressing Jump in air with Elytra/Glider capability)
+        // event.isGliding will be true.
+        if (event.isGliding) {
+            // Cancel the glide start
+            event.isCancelled = true
+            
+            // Execute Double Jump
+            handleDoubleJump(player, item)
+        }
+    }
+    
+    private fun handleDoubleJump(player: Player, item: ItemStack) {
+        val tier = getTier(item) ?: Tier.ONE
+        
+        // Physics Calculation
+        // Vector: Up + Forward direction
+        val direction = player.location.direction.clone().setY(0).normalize()
+        val currentVelocity = player.velocity
+        
+        // Base power + Tier bonus
+        val verticalPower = 0.5 + (tier.level * 0.15)
+        val forwardPower = 0.3 + (tier.level * 0.1)
+
+        player.velocity = currentVelocity.add(direction.multiply(forwardPower)).setY(verticalPower)
+        
+        // Effects
+        player.world.spawnParticle(Particle.CLOUD, player.location, 10, 0.5, 0.1, 0.5, 0.05)
+        player.playSound(player.location, Sound.ENTITY_BAT_TAKEOFF, 1.0f, 1.2f)
+        
+        player.sendActionBar(Component.text("Double Jump!", NamedTextColor.GREEN))
+    }
+}

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

@@ -98,6 +98,17 @@ class EventListener(private val plugin: Plugin) : Listener {
         }
     }
 
+    @EventHandler
+    fun onToggleGlide(event: org.bukkit.event.entity.EntityToggleGlideEvent) {
+        val entity = event.entity
+        if (entity is Player) {
+            val items = getEquipmentItems(entity)
+            for (item in items) {
+                dispatchToComponents(item) { it.onToggleGlide(entity, item, event) }
+            }
+        }
+    }
+
     private fun tickComponents() {
         for (player in plugin.server.onlinePlayers) {
             val items = getEquipmentItems(player)