Follow-up to #71.

- Fixed a major bug where two hit result calculations were being performed for each slider.
- Fixed a bug where hit circles/sliders were being drawn for a miss.
- Sliders now only expand when held to the end (as in osu!).
- Use the track position as the hit result start time for circles (instead of the object time).
- Added a 'color' parameter to Curve.draw(), rather than keeping an extra reference to the slider Color object.
- Renamed HitResultType enum to HitObjectType, and moved it into GameData.
- Removed some overloaded methods (not really necessary...).
- Other style changes.

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

src/itdelatrisu/opsu/Utils.java

@@ -609,7 +609,7 @@ public class Utils {
 	}
 
 	/**
-	 * Cubic ease out function
+	 * Cubic ease out function.
 	 * @param t the current time
 	 * @param a the starting position
 	 * @param b the finishing position
@@ -621,7 +621,7 @@ public class Utils {
 	}
 	
 	/**
-	 * Fake bounce ease function
+	 * Fake bounce ease function.
 	 * @param t the current time
 	 * @param a the starting position
 	 * @param b the finishing position
@@ -631,6 +631,6 @@ public class Utils {
 	public static float easeBounce(float t, float a, float b, float d) {
 		if (t < d / 2)
 			return easeOut(t, a, b, d);
-		return easeOut(d-t, a, b, d);
+		return easeOut(d - t, a, b, d);
 	}
 }