/
joystick.cpp
162 lines (129 loc) · 4.72 KB
/
joystick.cpp
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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/*********************************************************************
Apple II analog joysticks
*********************************************************************/
#include "emu.h"
#include "bus/a2gameio/joystick.h"
namespace {
// ======================> apple2_joystick_device
class apple2_joystick_device : public device_t, public device_a2gameio_interface
{
public:
// construction/destruction
apple2_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
protected:
// device-level overrides
virtual ioport_constructor device_input_ports() const override;
virtual void device_start() override;
// device_a2gameio_interface overrides
virtual u8 pdl0_r() override;
virtual u8 pdl1_r() override;
virtual u8 pdl2_r() override;
virtual u8 pdl3_r() override;
virtual int sw0_r() override;
virtual int sw1_r() override;
virtual int sw2_r() override;
virtual int sw3_r() override;
private:
// input ports
required_ioport_array<2> m_joy_x;
required_ioport_array<2> m_joy_y;
required_ioport m_buttons;
};
//**************************************************************************
// PARAMETERS
//**************************************************************************
#define JOYSTICK_DELTA 80
#define JOYSTICK_SENSITIVITY 50
#define JOYSTICK_AUTOCENTER 80
//**************************************************************************
// INPUT PORTS
//**************************************************************************
static INPUT_PORTS_START( apple2_joystick )
PORT_START("joystick_1_x") /* Joystick 1 X Axis */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X) PORT_NAME("P1 Joystick X")
PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
PORT_KEYDELTA(JOYSTICK_DELTA)
PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
PORT_MINMAX(0,0xff) PORT_PLAYER(1)
PORT_START("joystick_1_y") /* Joystick 1 Y Axis */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y) PORT_NAME("P1 Joystick Y")
PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
PORT_KEYDELTA(JOYSTICK_DELTA)
PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
PORT_MINMAX(0,0xff) PORT_PLAYER(1)
PORT_START("joystick_2_x") /* Joystick 2 X Axis */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X) PORT_NAME("P2 Joystick X")
PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
PORT_KEYDELTA(JOYSTICK_DELTA)
PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
PORT_MINMAX(0,0xff) PORT_PLAYER(2)
PORT_START("joystick_2_y") /* Joystick 2 Y Axis */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y) PORT_NAME("P2 Joystick Y")
PORT_SENSITIVITY(JOYSTICK_SENSITIVITY)
PORT_KEYDELTA(JOYSTICK_DELTA)
PORT_CENTERDELTA(JOYSTICK_AUTOCENTER)
PORT_MINMAX(0,0xff) PORT_PLAYER(2)
PORT_START("joystick_buttons")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(1) PORT_CODE(KEYCODE_0_PAD) PORT_CODE(JOYCODE_BUTTON1)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON2) PORT_PLAYER(1) PORT_CODE(KEYCODE_ENTER_PAD)PORT_CODE(JOYCODE_BUTTON2)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(2) PORT_CODE(JOYCODE_BUTTON1)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON2) PORT_PLAYER(2) PORT_CODE(JOYCODE_BUTTON2)
INPUT_PORTS_END
//**************************************************************************
// DEVICE IMPLEMENTATION
//**************************************************************************
apple2_joystick_device::apple2_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, APPLE2_JOYSTICK, tag, owner, clock)
, device_a2gameio_interface(mconfig, *this)
, m_joy_x(*this, "joystick_%u_x", 1U)
, m_joy_y(*this, "joystick_%u_y", 1U)
, m_buttons(*this, "joystick_buttons")
{
}
ioport_constructor apple2_joystick_device::device_input_ports() const
{
return INPUT_PORTS_NAME(apple2_joystick);
}
void apple2_joystick_device::device_start()
{
}
u8 apple2_joystick_device::pdl0_r()
{
return m_joy_x[0]->read();
}
u8 apple2_joystick_device::pdl1_r()
{
return m_joy_y[0]->read();
}
u8 apple2_joystick_device::pdl2_r()
{
return m_joy_x[1]->read();
}
u8 apple2_joystick_device::pdl3_r()
{
return m_joy_y[1]->read();
}
int apple2_joystick_device::sw0_r()
{
return BIT(m_buttons->read(), 4);
}
int apple2_joystick_device::sw1_r()
{
return BIT(m_buttons->read(), 5);
}
int apple2_joystick_device::sw2_r()
{
return BIT(m_buttons->read(), 6);
}
int apple2_joystick_device::sw3_r()
{
return BIT(m_buttons->read(), 7);
}
} // anonymous namespace
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
// device type definition
DEFINE_DEVICE_TYPE_PRIVATE(APPLE2_JOYSTICK, device_a2gameio_interface, apple2_joystick_device, "a2joy", "Apple II analog joysticks")