import java.awt.*;

public abstract class Roach
{
    final static int MINSIZE = 20,
                     MAXSIZE = 40,
                     MOVEMAX = 10;
    // instance variables
    protected int x, y,               // initial upper left corner
                  w, h,               // width, height
                  dx, dy;             // motion vector
    protected Color color;

    public Roach(int fieldSize) {
        x  = (int) (Math.random()*(fieldSize - MAXSIZE)) + zapem.XUL;
        y  = (int) (Math.random()*(fieldSize - MAXSIZE)) + zapem.YUL;
        w  = (int) (Math.random()*(MAXSIZE - MINSIZE + 1)) + MINSIZE;
        h  = (int) (Math.random()*(MAXSIZE - MINSIZE + 1)) + MINSIZE;
        dx = (int) (Math.random()*(2*MOVEMAX + 1)) - MOVEMAX - 1;
        dy = (int) (Math.random()*(2*MOVEMAX + 1)) - MOVEMAX - 1;
        color = new Color( (float) Math.random(),
                           (float) Math.random(),
                           (float) Math.random());
    }
    public void setDx(int D) { dx = D; }

    public void setDy(int D) { dy = D; }

    public void setColor(Color c) { color = c; }

    public void move() { x += dx; y += dy; }

    public boolean in(int X, int Y)
    {
        return (x <= X && X <= x + w && y <= Y && Y <= y + h) ? true : false;
    }

    public boolean out(int XUL, int YUL, int XLR, int YLR) {
        return (x <= XUL || XLR <= x + w || y <= YUL || YLR <= y + h) ? true : false;
    }
}