Follow-up to #52.

- Animate skip button during lead in.
- Update flashlight radius during lead in.
- Check if keys are set before calling gameKeyPressed().
- Deleted mouse moved/dragged events (no longer used).
- Renamed updateGameKeyPress().
- Added "auto"/"relax" mod checks to gameKeyPressed().

Also fixed a bug where the MenuButton class wasn't properly resetting image alpha/rotation in certain cases.

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

src/itdelatrisu/opsu/Utils.java

@@ -541,36 +541,33 @@ public class Utils {
 			return s.useDelimiter("\\A").hasNext() ? s.next() : "";
 		}
 	}
-	
 
 	/**
 	 * Returns the md5 hash of a file in hex form.
-	 * @param file
+	 * @param file the file to hash
 	 * @return the md5 hash
 	 */
-	public static String getMD5(File file){
+	public static String getMD5(File file) {
 		try {
 			InputStream in = new BufferedInputStream(new FileInputStream(file));
 			MessageDigest md = MessageDigest.getInstance("MD5");
 			byte[] buf = new byte[4096];
-			
-			while(true) {
+
+			while (true) {
 				int len = in.read(buf);
 				if (len < 0)
 					break;
 				md.update(buf, 0, len);
 			}
 			in.close();
-			
+
 			byte[] md5byte = md.digest();
 			StringBuilder result = new StringBuilder();
-			for (byte b : md5byte) {
+			for (byte b : md5byte)
 				result.append(String.format("%02x", b));
-			}
 			return result.toString();
 		} catch (NoSuchAlgorithmException | IOException e) {
-			e.printStackTrace();
-			Log.error(e);
+			ErrorHandler.error("Failed to calculate MD5 hash.", e, true);
 		}
 		return null;
 	}