Start working on consumables

src/main/kotlin/com/mineinabyss/looty/features/consumable/ConsumeItemFromInventory.kt

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+package com.mineinabyss.looty.features.consumable
+
+import com.mineinabyss.geary.autoscan.AutoScan
+import com.mineinabyss.geary.systems.GearyListener
+import com.mineinabyss.geary.systems.accessors.Pointers
+import com.mineinabyss.idofront.serialization.SerializableItemStack
+import org.bukkit.entity.Player
+
+class ConsumeItemFromInventory(
+    val type: SerializableItemStack,
+    val amount: Int = 1,
+)
+
+@AutoScan
+class ConsumeItemAction : GearyListener() {
+    val Pointers.player by get<Player>().on(target)
+    val Pointers.action by get<ConsumeItemFromInventory>().on(source)
+
+    override fun Pointers.handle() {
+        val matchedItem = player.inventory.firstOrNull { action.type.matches(it) } ?: return
+        matchedItem.amount -= action.amount
+    }
+}

src/main/kotlin/com/mineinabyss/looty/features/consumable/RequiresConsumable.kt

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+package com.mineinabyss.looty.features.consumable
+
+import com.mineinabyss.geary.autoscan.AutoScan
+import com.mineinabyss.geary.events.CheckingListener
+import com.mineinabyss.geary.systems.accessors.Pointers
+import com.mineinabyss.idofront.serialization.SerializableItemStack
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import org.bukkit.entity.Player
+
+@Serializable
+@SerialName("looty:requiresConsumable")
+class RequiresConsumable(
+    val type: SerializableItemStack,
+    val minAmount: Int = 1,
+)
+
+@AutoScan
+class RequiresConsumableCondition : CheckingListener() {
+    val Pointers.player by get<Player>().on(target)
+    val Pointers.condition by get<RequiresConsumable>().on(source)
+    override fun Pointers.check(): Boolean {
+        val matchedItem = player.inventory.firstOrNull { condition.type.matches(it) } ?: return false
+        return matchedItem.amount >= condition.minAmount
+    }
+}