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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
/**********************************************************************
Sega Master System "Light Phaser" (light gun) emulation
**********************************************************************/
#pragma once
#ifndef __SMS_LIGHT_PHASER__
#define __SMS_LIGHT_PHASER__
#include "emu.h"
#include "smsctrl.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> sms_light_phaser_device
class sms_light_phaser_device : public device_t,
public device_video_interface,
public device_sms_control_port_interface
{
public:
// construction/destruction
sms_light_phaser_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual ioport_constructor device_input_ports() const override;
DECLARE_CUSTOM_INPUT_MEMBER( th_pin_r );
DECLARE_INPUT_CHANGED_MEMBER( position_changed );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_sms_control_port_interface overrides
virtual UINT8 peripheral_r() override;
private:
required_ioport m_lphaser_pins;
required_ioport m_lphaser_x;
required_ioport m_lphaser_y;
int m_sensor_last_state;
emu_timer *m_lphaser_timer;
static const device_timer_id TIMER_LPHASER = 0;
void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
void sensor_check();
int bright_aim_area( emu_timer *timer, int lgun_x, int lgun_y );
UINT16 screen_hpos_nonscaled(int scaled_hpos);
UINT16 screen_vpos_nonscaled(int scaled_vpos);
};
// device type definition
extern const device_type SMS_LIGHT_PHASER;
#endif
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