Procedural crafting additions

pylon-core/src/main/kotlin/io/github/pylonmc/pylon/core/block/base/PylonEntityHolderBlock.kt

@@ -44,6 +44,18 @@ interface PylonEntityHolderBlock {
     fun addEntity(name: String, entity: PylonEntity<*>)
         = addEntity(name, entity.entity)
 
+    fun tryRemoveEntity(name: String) {
+        val uuid = heldEntities[name] ?: return
+        Bukkit.getEntity(uuid)?.remove()
+    }
+
+    fun tryRemoveAllEntities() {
+        val list = heldEntities.values.toList()
+        list.forEach {
+            Bukkit.getEntity(it)?.let { if (it.isValid) it.remove() }
+        }
+    }
+
     @ApiStatus.NonExtendable
     fun getHeldEntityUuid(name: String) = heldEntities[name]
 
@@ -142,9 +154,7 @@ interface PylonEntityHolderBlock {
             val block = event.pylonBlock
             if (block is PylonEntityHolderBlock) {
                 // Best-effort removal; unlikely to cause issues
-                block.heldEntities.values.forEach {
-                    Bukkit.getEntity(it)?.let { if (it.isValid) it.remove() }
-                }
+                block.tryRemoveAllEntities()
                 holders.remove(block)
             } else if (block is PhantomBlock) {
                 block.pdc.get(entityKey, entityType)?.values?.forEach {

pylon-core/src/main/kotlin/io/github/pylonmc/pylon/core/datatypes/PylonSerializers.kt

@@ -102,6 +102,9 @@ object PylonSerializers {
     @JvmField
     val INVENTORY = InventoryPersistentDataType
 
+    @JvmField
+    val VIRTUAL_INVENTORY = VirtualInventoryPersistentDataType
+
     @JvmField
     val KEYED = KeyedPersistentDataType
 

pylon-core/src/main/kotlin/io/github/pylonmc/pylon/core/datatypes/VirtualInventoryPersistentDataType.kt

@@ -0,0 +1,19 @@
+package io.github.pylonmc.pylon.core.datatypes
+
+import org.bukkit.persistence.PersistentDataAdapterContext
+import org.bukkit.persistence.PersistentDataType
+import xyz.xenondevs.invui.inventory.VirtualInventory
+
+object VirtualInventoryPersistentDataType : PersistentDataType<ByteArray, VirtualInventory> {
+    override fun getPrimitiveType(): Class<ByteArray> = ByteArray::class.java
+
+    override fun getComplexType(): Class<VirtualInventory> = VirtualInventory::class.java
+
+    override fun toPrimitive(complex: VirtualInventory, context: PersistentDataAdapterContext): ByteArray {
+        return complex.serialize()
+    }
+
+    override fun fromPrimitive(primitive: ByteArray, context: PersistentDataAdapterContext): VirtualInventory {
+        return VirtualInventory.deserialize(primitive)
+    }
+}