/*
 * Copyright (c) 1991,1993 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the Computer Systems
 *	Engineering Group at Lawrence Berkeley Laboratory.
 * 4. Neither the name of the University nor of the Laboratory may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @(#) $Header: /usr/src/mash/repository/vint/nam-1/drop.h,v 1.6 1998/02/23 01:59:29 haoboy Exp $ (LBL)
 */

#ifndef nam_drop_h
#define nam_drop_h

#include "animation.h"

class View;
class Monitor;

class Drop : public Animation {
 public:
	Drop(float x, float y, float bot, float sz, double now, long offset,
	     const PacketAttr&);
	~Drop();
	virtual void draw(View*, double) const;
	virtual void update(double);
	virtual void update_bb();
	virtual void reset(double);
	virtual int inside(double now, float px, float py) const;
	virtual const char* info() const;
	virtual const char* getname() const;
	void monitor(Monitor *m, double now, char *result, int len);
	MonState *monitor_state();
 private:
	inline double CurPos(double now) const {
		return (y_ - (now - start_));
	}
	float x_, y_, bot_;	/* initial position of dropped packet */
	float psize_;		/* size of drawable object (a side) */
	double start_;		/* time packet was dropped */
	PacketAttr pkt_;
	int rot_;		/* rotation state (not critical) */
	float curPos_;
};
#endif
