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/objects/curves/LinearBezier.java

@@ -164,7 +164,7 @@ public class LinearBezier extends Curve {
 	}
 
 	@Override
-	public void draw() {
+	public void draw(Color color) {
 		Image hitCircle = GameImage.HITCIRCLE.getImage();
 		Image hitCircleOverlay = GameImage.HITCIRCLE_OVERLAY.getImage();
 		for (int i = curve.length - 2; i >= 0; i--)