Initial replay writing support.

- Added Replay.save() method to save replays to a file.
- Separated Replay loading from the constructor into a load() method.
- Added OsuWriter class to write replays.
- Parse replay seeds (what do they do?).
- Added Updater.getBuildDate() method to retrieve the current build date (for the replay 'version' field).
- Added osu! mode constants in OsuFile.
- Added methods to retrieve raw ReplayFrame coordinates.
- Added replay fields/methods to GameData and Game state.
- Added jponge/lzma-java dependency for LZMA compression, since it isn't implemented in Apache commons-compress...

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>

src/itdelatrisu/opsu/states/Game.java

@@ -44,6 +44,7 @@ import itdelatrisu.opsu.replay.Replay;
 import itdelatrisu.opsu.replay.ReplayFrame;
 
 import java.io.File;
+import java.util.LinkedList;
 import java.util.Stack;
 import java.util.concurrent.TimeUnit;
 
@@ -175,6 +176,9 @@ public class Game extends BasicGameState {
 	/** The previous game mod state (before the replay). */
 	private int previousMods = 0;
 
+	/** The list of current replay frames (for recording replays). */
+	private LinkedList<ReplayFrame> frameList;
+
 	// game-related variables
 	private GameContainer container;
 	private StateBasedGame game;
@@ -468,7 +472,8 @@ public class Game extends BasicGameState {
 				game.closeRequested();
 			else {  // go to ranking screen
 				((GameRanking) game.getState(Opsu.STATE_GAMERANKING)).setGameData(data);
-				ScoreData score = data.getScoreData(osu);
+				ScoreData score = data.getScoreData(osu, (frameList == null) ? null :
+						 frameList.toArray(new ReplayFrame[frameList.size()]));
 				if (!GameMod.AUTO.isActive() && !GameMod.RELAX.isActive() && !GameMod.AUTOPILOT.isActive() && !isReplay)
 					ScoreDB.addScore(score);
 				game.enterState(Opsu.STATE_GAMERANKING, new FadeOutTransition(Color.black), new FadeInTransition(Color.black));
@@ -893,7 +898,8 @@ public class Game extends BasicGameState {
 				};
 				replayThreadRunning = true;
 				replayThread.start();
-			}
+			} else
+				frameList = new LinkedList<ReplayFrame>();
 
 			leadInTime = osu.audioLeadIn + approachTime;
 			restart = Restart.FALSE;
@@ -938,6 +944,7 @@ public class Game extends BasicGameState {
 		checkpointLoaded = false;
 		deaths = 0;
 		deathTime = -1;
+		frameList = null;
 
 		System.gc();
 	}