Add javadoc comments for OsuPixels.java and UnitTesting.java

src/game/OsuPixels.java

@@ -3,13 +3,24 @@
 import org.newdawn.slick.GameContainer;
 import org.newdawn.slick.geom.Vector2f;
 
+/**
+ *
+ * @author William Ball
+ *
+ */
 public class OsuPixels {
 	/**
-	 * Converts osupixels to display coordinates
+	 * Converts a vector containing osupixel coordinates to a vector containing
+	 * display coordinates.
 	 *
 	 * @param gc
+	 *            The game container, used to find the dimensions of the game
+	 *            window.
 	 * @param osupixels
-	 * @return
+	 *            The vector, in osupixel coordinates, to be converted to display
+	 *            coordinates.
+	 * @return Returns a vector containing the converted display coordinates of the
+	 *         osupixel coordinate vector.
 	 */
 	public Vector2f osuPixeltoXY(GameContainer gc, Vector2f osupixels) {
 		float newx = osupixels.x;
@@ -32,11 +43,17 @@ public Vector2f osuPixeltoXY(GameContainer gc, Vector2f osupixels) {
 	}
 
 	/**
-	 * Converts display coordinates to osupixels
+	 * Converts a vector containing display coordinates to a vector containing
+	 * osupixel coordinates.
 	 *
 	 * @param gc
+	 *            The game container, used to find the dimensions of the game
+	 *            window.
 	 * @param XYpixels
-	 * @return
+	 *            The vector, in display coordinates, to be converted to osupixel
+	 *            coordinates.
+	 * @return Returns a vector containing the converted osupixel coordinates of the
+	 *         display coordinate vector.
 	 */
 	public Vector2f XYtoOsuPixel(GameContainer gc, Vector2f convertedvector) {
 		float scalefactor = (float) (1.0 / getScaleFactor(gc));
@@ -59,6 +76,20 @@ public Vector2f XYtoOsuPixel(GameContainer gc, Vector2f convertedvector) {
 		return vector;
 	}
 
+	/**
+	 * Determines the scale factor to use when converting osupixel coordinates to
+	 * display coordinates.
+	 *
+	 * @param gc
+	 *            The game container, used to find the dimensions of the game
+	 *            window.
+	 * @return If the screen width to screen height ratio is greater than that of a
+	 *         640x480px display, returns the float ratio between the screen height
+	 *         and the height of a 640x480px display. If the screen width to screen
+	 *         height ratio is less than that of a 640x480px display, returns the
+	 *         float ratio between the screen width and that of a 640x480px display.
+	 * 
+	 */
 	protected float getScaleFactor(GameContainer gc) {
 		int screenheight = gc.getHeight();
 		int screenwidth = gc.getWidth();

src/utils/UnitTesting.java

@@ -5,23 +5,32 @@
 
 import game.OsuPixels;
 
+/**
+ *
+ * @author William Ball
+ *
+ */
 public class UnitTesting {
 	/**
-	 * Using the GameContainer, tests if OsuPixels returns the right vectors.
-	 * 
+	 * Tests if OsuPixels returns the right vectors.
+	 * <p>
+	 * Goes through all possible osupixel coordinate values, and converts them to
+	 * display coordinates and back.
+	 *
 	 * @param gc
-	 * @return
+	 *            The game container, used for osupixel conversion.
+	 * @return Returns whether or not the test was successful.
 	 */
 	public boolean testOsuPixels(GameContainer gc) {
 		OsuPixels osupixelconverter = new OsuPixels();
-		for (int i = 0; i < 100; i++) {
-			int x = (int) (Math.random() * 512);
-			int y = (int) (Math.random() * 384);
-			Vector2f test = new Vector2f(x, y);
-			test = osupixelconverter.osuPixeltoXY(gc, test);
-			test = osupixelconverter.XYtoOsuPixel(gc, test);
-			if ((int) test.x != x || (int) test.y != y) {
-				return false;
+		for (int x = 0; x <= 512; x++) {
+			for (int y = 0; y <= 384; y++) {
+				Vector2f test = new Vector2f(x, y);
+				test = osupixelconverter.osuPixeltoXY(gc, test);
+				test = osupixelconverter.XYtoOsuPixel(gc, test);
+				if ((int) test.x != x || (int) test.y != y) {
+					return false;
+				}
 			}
 		}
 		return true;