import objectdraw.*;


/**
 * A laundry sorting game.  The user drags a shirt to the proper
 * "washing machine" according to the shirt's color.
 */
public class LaundrySorter extends WindowController {
    // Constants controlling basket locations
    private static final int BASKETTOPS = 120;
    private static final int BASKETLEFT = 20;
    private static final int BASKETOFFSET = 130;

    // Constants controlling shirt's position and size
    private static final int ITEM_LEFT = 115;
    private static final int ITEM_TOP = 10;

    // Location where score should be displayed
    private static final int SCORELINE = BASKETTOPS + 150;
    private static final int SCORELEFT = 40;

    //The piece of laundry to be sorted.
    private LaundryItem item;

    // baskets for white, dark, and color washing machines.
    private LaundryBasket white;
    private LaundryBasket dark;
    private LaundryBasket colors;

    // The basket corresponding to shirt's color
    private LaundryBasket correct;

    // Determines if next laundry should be a tshirt or a pair of pants
    private RandomIntGenerator laundryGenerator = new RandomIntGenerator(1, 2);

    // Previously noted position of mouse cursor
    private Location lastPoint;

    // true if the tshirt is being dragged
    private boolean draggingIt;

    // counters to measure trainees accuracy
    private int numsorted;

    // counters to measure trainees accuracy
    private int mistakes;

    // Display of current result
    private Text scoreDisplay;

    // Initializes the applet by constructing all the objects.
    public void begin() {
        white = new LaundryBasket(BASKETLEFT + (0 * BASKETOFFSET), BASKETTOPS,
                "whites", canvas);
        dark = new LaundryBasket(BASKETLEFT + (1 * BASKETOFFSET), BASKETTOPS,
                "darks", canvas);
        colors = new LaundryBasket(BASKETLEFT + (2 * BASKETOFFSET), BASKETTOPS,
                "colors", canvas);

        numsorted = 0;
        mistakes = 0;

        scoreDisplay = new Text("Correct: " + numsorted + "    Incorrect: " +
                mistakes, SCORELEFT, SCORELINE, canvas);
        scoreDisplay.setFontSize(13);

        item = new TShirt(ITEM_LEFT, ITEM_TOP, canvas);
    }

    // Whenever mouse is depressed, note its location
    public void onMousePress(Location point) {
        lastPoint = point;
        draggingIt = item.contains(point);
    }

    // If mouse is dragged from a position within the item, move the item with it
    public void onMouseDrag(Location point) {
        if (draggingIt) {
            item.move(point.getX() - lastPoint.getX(),
                point.getY() - lastPoint.getY());
            lastPoint = point;
        }
    }

    // Checks if the item has been place in the correct basket
    public void onMouseRelease(Location point) {
        if (draggingIt) {
            // Determine correct basket
            if (item.colorValue() > 600) {
                correct = white;
            } else if (item.colorValue() > 250) {
                correct = colors;
            } else {
                correct = dark;
            }

            // if the object was dragged to the correct basket
            if (correct.contains(point)) {
                numsorted = numsorted + 1;
                item.removeFromCanvas();

                // Make a new item
                int num = laundryGenerator.nextValue();

                if (num == 1) {
                    item = new TShirt(ITEM_LEFT, ITEM_TOP, canvas);
                } else {
                    item = new Pants(ITEM_LEFT, ITEM_TOP, canvas);
                }
            } else {
                mistakes = mistakes + 1;
                item.moveTo(ITEM_LEFT, ITEM_TOP);
            }
        }

        scoreDisplay.setText("Correct: " + numsorted + "    Incorrect: " +
            mistakes);
    }
}