moving things around and inventory stuff

src/main/kotlin/com/pobnellion/aoe/building/Building.kt

@@ -11,6 +11,7 @@ import com.sk89q.worldedit.function.operation.Operations
 import com.sk89q.worldedit.math.BlockVector3
 import com.sk89q.worldedit.session.ClipboardHolder
 import org.bukkit.Location
+import org.bukkit.util.Vector
 import java.io.File
 import java.io.FileInputStream
 
@@ -22,19 +23,26 @@ abstract class Building(val location: Location, val variant: Int): EntityWorkTar
     override fun removeProgress(amount: Float) {}
     override fun onComplete() {}
 
+    var sizeX: Int
+    var sizeZ: Int
+    fun center(): Location = location.clone().add(sizeX / 2.0, 0.0, sizeZ / 2.0)
+    private val clipboard: Clipboard
     abstract var populationCapacity: Int
     abstract fun getSchematicName(variant: Int): String
 
-    fun placeFull() {
-        currentProgressPercent = 1f
-        var clipboard: Clipboard
-
-        val file: File = Aoe.getSchematicFile(getSchematicName(variant))
+    init {
+        val file: File = Aoe.getSchematicFile(this.getSchematicName(variant))
         val format = ClipboardFormats.findByFile(file)
         format!!.getReader(FileInputStream(file)).use { reader ->
             clipboard = reader.read()
         }
 
+        sizeX = clipboard.maximumPoint.x() - clipboard.minimumPoint.x()
+        sizeZ = clipboard.maximumPoint.z() - clipboard.minimumPoint.z()
+    }
+
+    fun placeFull() {
+        currentProgressPercent = 1f
         val offset = clipboard.region.minimumPoint.subtract(clipboard.origin)
 
         WorldEdit.getInstance().newEditSession(BukkitAdapter.adapt(location.world)).use { editSession ->
@@ -50,6 +58,7 @@ abstract class Building(val location: Location, val variant: Int): EntityWorkTar
 interface BuildingInfo {
     val buildingType: BuildingType
     val schematicNames: List<String>
+    fun getSize(variant: Int): Vector
     fun validate(location: Location): Boolean
     fun create(location: Location, variant: Int): Building
 }