/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/

#include "hsTypes.h"

#include "hsStream.h"

#include "plBulletMsg.h"
#include "hsFastMath.h"

void plBulletMsg::Read(hsStream* stream, hsResMgr* mgr) 
{ 
    IMsgRead(stream, mgr); 

    fCmd = Cmd(stream->ReadByte());

    fFrom.Read(stream);
    fDir.Read(stream);
    fRange = stream->ReadSwapScalar();
    fRadius = stream->ReadSwapScalar();
    fPartyTime = stream->ReadSwapScalar();
}

void plBulletMsg::Write(hsStream* stream, hsResMgr* mgr) 
{ 
    IMsgWrite(stream, mgr); 

    stream->WriteByte(UInt8(fCmd));

    fFrom.Write(stream);
    fDir.Write(stream);
    stream->WriteSwapScalar(fRange);
    stream->WriteSwapScalar(fRadius);
    stream->WriteSwapScalar(fPartyTime);
}

void plBulletMsg::FireShot(const hsPoint3& from, const hsVector3& dir, hsScalar radius, hsScalar range, hsScalar psecs)
{
    fFrom = from;
    fDir = dir;
    fRange = range;
    fRadius = radius;
    fPartyTime = psecs;

    fCmd = kShot;
}

void plBulletMsg::FireShot(const hsPoint3& from, const hsPoint3& at, hsScalar radius, hsScalar psecs)
{
    hsVector3 dir(&at, &from);
    hsScalar invLen = hsFastMath::InvSqrt(dir.MagnitudeSquared());
    hsAssert(invLen > 0, "degenerate from and at to fire bullet");
    dir *= invLen;
    hsScalar range = 1.f / invLen;

    FireShot(from, dir, radius, range, psecs);
}