terrain damage data is now properly removed when the tile is newly placed

src/net/torvald/terrarum/realestate/LandUtil.kt

@@ -0,0 +1,25 @@
+package net.torvald.terrarum.realestate
+
+import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.gameactors.faction.FactionCodex
+import net.torvald.terrarum.gameworld.TileAddress
+
+/**
+ * Created by minjaesong on 16-03-27.
+ */
+object LandUtil {
+    fun getTileAddr(x: Int, y: Int): TileAddress =
+            (Terrarum.ingame!!.world.width * y).toLong() + x
+
+    fun resolveAbsoluteTileNumber(t: TileAddress): Pair<Int, Int> =
+            Pair((t % Terrarum.ingame!!.world.width).toInt(), (t / Terrarum.ingame!!.world.width).toInt())
+
+    /**
+     * Get owner ID as an Actor/Faction
+     */
+    fun resolveOwner(id: TileAddress): Any =
+            if (id < 0x80000000L)
+                Terrarum.ingame!!.getActorByID(id.toInt())
+            else
+                FactionCodex.getFactionByID(id)
+}