/*
* 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: /cvsroot/nsnam/nam-1/drop.cc,v 1.14 2005/01/24 19:55:14 haldar Exp $ (LBL)
*/
#ifdef WIN32
#include <windows.h>
#endif
#include "netview.h"
#include "drop.h"
#include "monitor.h"
//<zheng: +++>
#include "parser.h"
#include <math.h>
//</zheng: +++>
//----------------------------------------------------------------------
//----------------------------------------------------------------------
Drop::Drop(float cx, float cy, float b, float size, double now,
long offset, const PacketAttr& p) :
Animation(now, offset),
x_(cx),
y_(cy),
bottom_(b),
psize_(size),
start_(now),
pkt_(p),
rotation_(0) {
curPos_ = CurPos(now);
}
//----------------------------------------------------------------------
//----------------------------------------------------------------------
Drop::~Drop() {
if (monitor_!=NULL) {
monitor_->delete_monitor_object(this);
}
}
//----------------------------------------------------------------------
//----------------------------------------------------------------------
void Drop::draw(View * c, double now) {
/* XXX nuke array */
//<zheng: +++>
float tx,ty,tx2,ty2,td;
//</zheng: +++>
float fx[4], fy[4];
double yy = CurPos(now);
if (rotation_ & 2) {
double d = (0.75 * 0.7071067812) * psize_;
//<zheng: +++>
//not too large
if (ParseTable::nam4wpan) {
tx = x_;
ty = yy;
c->imap(tx,ty);
tx2 = x_ + 1;
ty2 = yy;
c->imap(tx2,ty2);
td = (tx2 - tx) * (tx2 - tx) + (ty2 - ty) * (ty2 - ty);
td = pow(td, 0.5);
if (d > td)
d = td;
}
//</zheng: +++>
fx[0] = x_;
fy[0] = yy - d;
fx[1] = x_ - d;
fy[1] = yy;
fx[2] = x_;
fy[2] = yy + d;
fx[3] = x_ + d;
fy[3] = yy;
} else {
double d = (0.75 * 0.5) * psize_;
//<zheng: +++>
//not too large
if (ParseTable::nam4wpan) {
tx = x_;
ty = yy;
c->imap(tx,ty);
tx2 = x_ + 1;
ty2 = yy;
c->imap(tx2,ty2);
td = (tx2 - tx) * (tx2 - tx) + (ty2 - ty) * (ty2 - ty);
td = pow(td, 0.5);
if (d > td)
d = td;
}
//</zheng: +++>
fx[0] = x_ - d;
fy[0] = yy - d;
fx[1] = x_ - d;
fy[1] = yy + d;
fx[2] = x_ + d;
fy[2] = yy + d;
fx[3] = x_ + d;
fy[3] = yy - d;
}
// Draw a square
c->fill(fx, fy, 4, paint_);
if (monitor_) {
monitor_->draw(c, x_,yy);
}
}
//----------------------------------------------------------------------
//----------------------------------------------------------------------
void Drop::update(double now) {
++rotation_;
if ((now < start_) ||
(CurPos(now) < bottom_)) {
delete this;
} else {
curPos_ = CurPos(now);
update_bb();
}
}
void Drop::update_bb()
{
double d = (0.75 * 0.7071067812) * psize_;
bb_.xmin = x_ - d, bb_.xmax = x_ + d;
bb_.ymin = curPos_ - d, bb_.ymax = curPos_ + d;
}
void Drop::reset(double now)
{
if (now < start_ || CurPos(now) < bottom_)
delete this;
else
curPos_ = CurPos(now);
}
int Drop::inside(double now, float px, float py) const
{
//float minx, maxx, miny, maxy;
double yy = CurPos(now);
double d = (0.75 * 0.7071067812) * psize_;
return (px >= x_ - d && px <= x_ + d && py >= yy - d && py <= yy + d);
}
//----------------------------------------------------------------------
// double
// Drop::CurPos(double now) const
// - Calculates the current position of the packet based upon the start
// time of the packet drop and the maximum drop time
//----------------------------------------------------------------------
double
Drop::CurPos(double now) const {
// This calculation starts the drop at y_ and runs to bottom_ within the
// timeframe of MAX_DROP_TIME. At start_ + MAX_DROP_TIME the packet
// should be at bottom_.
double drop_distance = (now - start_)*(bottom_ - y_)/MAX_DROP_TIME + y_;
// if (bottom_ < -10) {
//quick hack for wireless model
// drop_distance = y_ - (now - start_) * (0 - bottom_);
// fprintf(stderr, "Using Wireless drop distance.\n");
// }
return drop_distance;
}
const char* Drop::info() const
{
static char text[128];
sprintf(text, "%s %d: %s\n dropped at %g\n %d bytes",
pkt_.type, pkt_.id, pkt_.convid, start_, pkt_.size);
return (text);
}
const char* Drop::getname() const
{
static char text[128];
sprintf(text, "d");
return (text);
}
void Drop::monitor(Monitor *m, double /*now*/, char *result, int /*len*/)
{
monitor_=m;
sprintf(result, "%s %d: %s\n dropped at %g\n %d bytes",
pkt_.type, pkt_.id, pkt_.convid, start_, pkt_.size);
}
MonState *Drop::monitor_state()
{
MonState *ms=new MonState;
ms->type=MON_PACKET;
ms->pkt.id=pkt_.id;
return ms;
}
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