[editor] support level pack edit

src/common/haxe/ru/m/tankz/Type.hx

@@ -80,6 +80,10 @@ abstract PackId(Array<Dynamic>) {
         return new PackId(value[0], value[1]);
     }
 
+    @:from static public function fromString(value:String):PackId {
+        return fromArray(value.split("_"));
+    }
+
     @:to public inline function toString():String {
         return '${type}_${name}';
     }

src/common/haxe/ru/m/tankz/bundle/ILevelBundle.hx

@@ -5,4 +5,5 @@ import ru.m.tankz.Type;
 
 interface ILevelBundle {
     public function get(id:PackId):LevelPack;
+    public function list():Array<PackId>;
 }

src/common/haxe/ru/m/tankz/util/LevelUtil.hx

@@ -1,5 +1,9 @@
 package ru.m.tankz.util;
 
+import haxe.zip.Tools;
+import haxe.io.BytesOutput;
+import haxe.zip.Writer;
+import flash.utils.ByteArray;
 import haxe.io.Bytes;
 import haxe.io.BytesInput;
 import haxe.zip.Entry;
@@ -87,8 +91,32 @@ class LevelUtil {
         return level;
     }
 
+    private static function compress(level:LevelConfig):Entry {
+        var content = LevelUtil.dumps(null, level);
+        var bytes = Bytes.ofString(content);
+        var crc = haxe.crypto.Crc32.make(bytes);
+        var result:Entry = {
+            fileName: '${formatLevel(level.id)}.txt',
+            fileSize: bytes.length,
+            fileTime : Date.now(),
+            compressed : false,
+            dataSize : bytes.length,
+            data : bytes,
+            crc32 : crc,
+        };
+        Tools.compress(result, 9);
+        return result;
+    }
+
     public static function unpack(bytes:Bytes):Array<LevelConfig> {
         var files = Reader.readZip(new BytesInput(bytes));
         return Lambda.array(files.map(extract));
     }
+
+    public static function pack(data:Array<LevelConfig>):Bytes {
+        var output = new BytesOutput();
+        var writer = new Writer(output);
+        writer.write(Lambda.list(data.map(compress)));
+        return output.getBytes();
+    }
 }