more Kotlin, UIs now can open/close with animation, working world time with skybox colour changing (sunlight transition is still WIP), fixed project library settings so that the suggestion in IntelliJ IDEA would work properly

Former-commit-id: 82c857164f2636ad943d5a43f0690a3431ab0f26
Former-commit-id: 7c8b70e6b267f7c5c050d7d0902278739ec18b44

src/com/Torvald/Serialise/WriteGameMapData.kt

@@ -0,0 +1,79 @@
+package com.Torvald.Serialise
+
+import com.Torvald.Terrarum.GameMap.GameMap
+import com.Torvald.Terrarum.Terrarum
+import java.io.IOException
+import java.nio.file.Files
+import java.nio.file.Path
+import java.nio.file.Paths
+import java.nio.file.StandardCopyOption
+
+/**
+ * Created by minjaesong on 16-03-18.
+ */
+object WriteGameMapData {
+
+    val META_FILENAME = "worldinfo1"
+
+    val MAGIC: ByteArray = byteArrayOf(
+            'T'.toByte(),
+            'E'.toByte(),
+            'M'.toByte(),
+            'D'.toByte()
+    )
+
+    val BYTE_NULL: Byte = 0
+
+
+    fun write(saveDirectoryName: String): Boolean {
+        val path = Paths.get("${Terrarum.defaultSaveDir}" +
+                                       "/$saveDirectoryName/${WriteMeta.META_FILENAME}")
+        val tempPath = Files.createTempFile(path.toString(), "_temp")
+        val map = Terrarum.game.map
+
+        // TODO gzip
+
+        // write binary
+        Files.write(tempPath, MAGIC)
+        Files.write(tempPath, byteArrayOf(GameMap.BITS))
+        Files.write(tempPath, byteArrayOf(GameMap.LAYERS))
+        Files.write(tempPath, byteArrayOf(BYTE_NULL))
+        Files.write(tempPath, byteArrayOf(BYTE_NULL))
+        Files.write(tempPath, toByteArray(map.width))
+        Files.write(tempPath, toByteArray(map.height))
+        Files.write(tempPath, toByteArray(map.spawnX))
+        Files.write(tempPath, toByteArray(map.spawnY))
+        map.layerTerrain.forEach(
+                {b -> Files.write(tempPath, byteArrayOf(b))})
+        map.layerWall.forEach(
+                {b -> Files.write(tempPath, byteArrayOf(b))})
+        map.terrainDamage.forEach(
+                {b -> Files.write(tempPath, byteArrayOf(b))})
+        map.wallDamage.forEach(
+                {b -> Files.write(tempPath, byteArrayOf(b))})
+        map.layerWire.forEach(
+                {b -> Files.write(tempPath, byteArrayOf(b))})
+
+        // replace savemeta with tempfile
+        try {
+            Files.copy(tempPath, path, StandardCopyOption.REPLACE_EXISTING)
+            Files.deleteIfExists(tempPath)
+            println("Saved map data '$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()
+        )
+    }
+}