// license:BSD-3-Clause
// copyright-holders:James Wallace
/**********************************************************************
Electromechanical Meter device
**********************************************************************/
#include "emu.h"
#include "meters.h"
/*****************************************************************************
DEVICE INTERFACE
*****************************************************************************/
DEFINE_DEVICE_TYPE(METERS, meters_device, "meters", "Electromechanical meters")
meters_device::meters_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, METERS, tag, owner, clock)
, m_number_mtr(0)
{
memset(m_meter_info, 0, sizeof(m_meter_info));
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void meters_device::device_start()
{
if (m_number_mtr > MAXMECHMETERS)
m_number_mtr = MAXMECHMETERS;
for (int i = 0; i < m_number_mtr; i++)
{
m_meter_info[i].reacttime = METERREACTTIME;
m_meter_info[i].state = 0;
m_meter_info[i].count = 0;
m_meter_info[i].on = 0;
m_meter_info[i].meter_timer = timer_alloc(FUNC(meters_device::count_tick), this);
save_item(NAME(m_meter_info[i].state), i);
save_item(NAME(m_meter_info[i].count), i);
save_item(NAME(m_meter_info[i].on), i);
}
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void meters_device::device_reset()
{
}
//-------------------------------------------------
// count_tick - advance the meter's counter
//-------------------------------------------------
TIMER_CALLBACK_MEMBER(meters_device::count_tick)
{
m_meter_info[param].count++;
}
int meters_device::get_activity(int id)
{
return m_meter_info[id].on;
}
int meters_device::update(int id, int state)
{
if (id >= m_number_mtr)
return 0;
state = state ? 1 : 0;
if (m_meter_info[id].state != state)
{ // meter state is changing
m_meter_info[id].state = state;
if (state)
{
m_meter_info[id].on = true;
m_meter_info[id].meter_timer->adjust(attotime::from_seconds(m_meter_info[id].reacttime), id);
}
else
{
m_meter_info[id].on = false;
m_meter_info[id].meter_timer->adjust(attotime::never);
}
}
return m_meter_info[id].on;
}