quickslot works, new event for actor "actorValueChanged"

- "unpacking" fresh new tool would un-register quickslot desig.
- priority issue on "equipped by quickslot change" and "equipped by inventory UI"

src/net/torvald/terrarum/serialise/WriteGameMapData.kt

@@ -0,0 +1,75 @@
+package net.torvald.terrarum.serialise
+
+import net.torvald.terrarum.gameworld.GameWorld
+import net.torvald.terrarum.Terrarum
+import java.io.IOException
+import java.nio.charset.Charset
+import java.nio.file.Files
+import java.nio.file.Paths
+import java.nio.file.StandardCopyOption
+
+/**
+ * Created by minjaesong on 16-03-18.
+ */
+// internal for everything: prevent malicious module from messing up the savedata
+internal object WriteGameMapData {
+
+    val META_FILENAME = "worldinfo1"
+
+    val MAGIC = "TEMD".toByteArray(charset = Charset.forName("US-ASCII"))
+
+    val BYTE_NULL: Byte = 0
+
+
+    internal fun write(saveDirectoryName: String): Boolean {
+        val path = Paths.get("${Terrarum.defaultSaveDir}" +
+                                       "/$saveDirectoryName/${WriteMeta.META_FILENAME}")
+        val tempPath = Files.createTempFile(path.toString(), "_temp")
+        val map = Terrarum.ingame!!.world
+
+        // TODO gzip
+
+        // write binary
+        Files.write(tempPath, MAGIC)
+        Files.write(tempPath, byteArrayOf(GameWorld.SIZEOF))
+        Files.write(tempPath, byteArrayOf(GameWorld.LAYERS))
+        Files.write(tempPath, byteArrayOf(BYTE_NULL))
+        Files.write(tempPath, byteArrayOf(BYTE_NULL))
+        Files.write(tempPath, toByteArray(map.width))
+        Files.write(tempPath, toByteArray(map.height))
+        Files.write(tempPath, toByteArray(map.spawnX))
+        Files.write(tempPath, toByteArray(map.spawnY))
+        map.layerTerrain.forEach(
+                { b -> Files.write(tempPath, byteArrayOf(b)) })
+        map.layerWall.forEach(
+                { b -> Files.write(tempPath, byteArrayOf(b)) })
+        map.layerTerrainLowBits.forEach(
+                { b -> Files.write(tempPath, byteArrayOf(b)) })
+        map.layerWallLowBits.forEach(
+                { b -> Files.write(tempPath, byteArrayOf(b)) })
+        map.layerWire.forEach(
+                { b -> Files.write(tempPath, byteArrayOf(b)) })
+
+        // replace savemeta with tempfile
+        try {
+            Files.copy(tempPath, path, StandardCopyOption.REPLACE_EXISTING)
+            Files.deleteIfExists(tempPath)
+            println("Saved map data '$META_FILENAME' to $saveDirectoryName.")
+
+            return true
+        }
+        catch (e: IOException) {
+            e.printStackTrace()
+        }
+        return false
+    }
+
+    fun toByteArray(int: Int): ByteArray {
+        return byteArrayOf(
+                ((int ushr 0x18) and 0xFF).toByte(),
+                ((int ushr 0x10) and 0xFF).toByte(),
+                ((int ushr 0x08) and 0xFF).toByte(),
+                ((int          ) and 0xFF).toByte()
+        )
+    }
+}