public class Parameters
{
	/*
	 *  These are just the static parameters of the applet,
	 *	that are accessible from every class.
	 */
	 
	// epsilon used for robustness
	public static final double EPSILON = 0.001;
	public static final double EPSILON2 = EPSILON*EPSILON;
	// what distance (in pixels) is considered close enough
	public static final int NEAR = 5;
	public static final int NEAR2 = NEAR*NEAR;
	
	// used for classifying vertices and segments wrt half-planes
	public static final int COINCIDENT = 0;
	public static final int IN_FRONT = 1;
	public static final int IN_BACK = 2;
	public static final int SPANNING = 3;
	
	// screen size
	public static final int WIDTH = 400;
	public static final int HEIGHT = 400;
	
	// different modes of the applet
	public static final int DEFAULT_MODE = 0;
	public static final int SEGMENT_INPUT_MODE = 1;
	public static final int SEGMENT_MODIFY_MODE = 2;
	public static final int EYE_INPUT_MODE = 3;
	public static int mode = DEFAULT_MODE;
	
	// for dragging the segment or endpoints
	public static final int NIL = 4;		// dragging nothing
	public static final int P = 5;			// dragging p of the segment
	public static final int Q = 6;			// dragging q of the segment
	public static final int S = 7;			// dragging the segment
	
	// should i display everything?
	public static boolean show_ordering = true;
}