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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia 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 2 of the License, or
// (at your option) any later version.
//
// Nestopia 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 Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#ifndef NST_INPUT_ZAPPER_H
#define NST_INPUT_ZAPPER_H
#ifdef NST_PRAGMA_ONCE
#pragma once
#endif
namespace Nes
{
namespace Core
{
class Ppu;
namespace Input
{
class Zapper : public Device
{
public:
Zapper(const Cpu&,Ppu&);
private:
void Reset();
void Initialize(bool);
uint Poll();
void Poke(uint);
uint Peek(uint);
uint GetHitPixel() const;
void LoadState(State::Loader&,dword);
void SaveState(State::Saver&,byte) const;
enum
{
PHOSPHOR_DECAY = 384,
LIGHT_SENSOR = 0x40
};
ibool arcade;
uint stream;
uint shifter;
uint pos;
uint fire;
Ppu& ppu;
static const byte lightMap[Video::Screen::PALETTE];
public:
static uint GetLightMap(uint pixel)
{
NST_ASSERT( pixel < Video::Screen::PALETTE );
return lightMap[pixel];
}
};
}
}
}
#endif
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