/***************************************************************************

Ramtek Star Cruiser Driver

(no known issues)

Frank Palazzolo
palazzol@home.com

***************************************************************************/

#include "emu.h"
#include "cpu/i8085/i8085.h"
#include "sound/samples.h"
#include "includes/starcrus.h"

static ADDRESS_MAP_START( starcrus_map, AS_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0fff) AM_ROM
	AM_RANGE(0x1000, 0x10ff) AM_RAM
ADDRESS_MAP_END

static ADDRESS_MAP_START( starcrus_io_map, AS_IO, 8 )
    AM_RANGE(0x00, 0x00) AM_READ_PORT("P1") AM_WRITE(starcrus_s1_x_w)
	AM_RANGE(0x01, 0x01) AM_READ_PORT("P2") AM_WRITE(starcrus_s1_y_w)
	AM_RANGE(0x02, 0x02) AM_READWRITE(starcrus_coll_det_r, starcrus_s2_x_w)
	AM_RANGE(0x03, 0x03) AM_READ_PORT("DSW") AM_WRITE(starcrus_s2_y_w)
    AM_RANGE(0x04, 0x04) AM_WRITE(starcrus_p1_x_w)
    AM_RANGE(0x05, 0x05) AM_WRITE(starcrus_p1_y_w)
    AM_RANGE(0x06, 0x06) AM_WRITE(starcrus_p2_x_w)
    AM_RANGE(0x07, 0x07) AM_WRITE(starcrus_p2_y_w)
    AM_RANGE(0x08, 0x08) AM_WRITE(starcrus_ship_parm_1_w)
    AM_RANGE(0x09, 0x09) AM_WRITE(starcrus_ship_parm_2_w)
    AM_RANGE(0x0a, 0x0a) AM_WRITE(starcrus_proj_parm_1_w)
    AM_RANGE(0x0b, 0x0b) AM_WRITE(starcrus_proj_parm_2_w)
ADDRESS_MAP_END


static INPUT_PORTS_START( starcrus )
	PORT_START("P1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY /* ccw */
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) /* engine */
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY /* cw */
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON3 ) /* torpedo */
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) /* phaser */
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START("P2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2) /* ccw */
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) /* engine */
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2) /* cw */
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2) /* torpedo */
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) /* phaser */
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START("DSW")
	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Game_Time ) )
	PORT_DIPSETTING(    0x03, "60 secs" )
	PORT_DIPSETTING(    0x02, "90 secs" )
	PORT_DIPSETTING(    0x01, "120 secs" )
	PORT_DIPSETTING(    0x00, "150 secs" )
	PORT_DIPNAME( 0x04, 0x00, DEF_STR( Coinage ))
	PORT_DIPSETTING(    0x04, DEF_STR( 2C_1C ))
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ))
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_DIPNAME( 0x20, 0x20, "Mode" )
	PORT_DIPSETTING(    0x20, DEF_STR( Standard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Alternate ) )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END



static const gfx_layout spritelayout1 =
{
	16,16,    /* 16x16 sprites */
	4,          /* 4 sprites */
	1,      /* 1 bits per pixel */
	{ 0 },  /* 1 chip */
	{ 0*8+4,  0*8+4,  1*8+4,  1*8+4, 2*8+4, 2*8+4, 3*8+4, 3*8+4,
	  4*8+4,  4*8+4,  5*8+4,  5*8+4, 6*8+4, 6*8+4, 7*8+4, 7*8+4 },
	{ 0, 0, 1*64, 1*64, 2*64, 2*64, 3*64, 3*64,
	  4*64, 4*64, 5*64, 5*64, 6*64, 6*64, 7*64, 7*64 },
	1  /* every sprite takes 1 consecutive bit */
};
static const gfx_layout spritelayout2 =
{
    16,16,   /* 16x16 sprites */
    4,       /* 4 sprites */
    1,       /* 1 bits per pixel */
    { 0 },   /* 1 chip */
    { 0*8+4,  1*8+4,  2*8+4,  3*8+4, 4*8+4, 5*8+4, 6*8+4, 7*8+4,
      8*8+4,  9*8+4,  10*8+4,  11*8+4, 12*8+4, 13*8+4, 14*8+4, 15*8+4 },
    { 0, 1*128, 2*128, 3*128, 4*128, 5*128, 6*128, 7*128,
      8*128, 9*128, 10*128, 11*128, 12*128, 13*128, 14*128, 15*128 },
    1 /* every sprite takes 1 consecutive bytes */
};

static GFXDECODE_START( starcrus )
	GFXDECODE_ENTRY( "gfx1", 0x0000, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx1", 0x0040, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx1", 0x0080, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx1", 0x00c0, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx2", 0x0000, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx2", 0x0040, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx2", 0x0080, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx2", 0x00c0, spritelayout1, 0, 1 )
    GFXDECODE_ENTRY( "gfx3", 0x0000, spritelayout2, 0, 1 )
    GFXDECODE_ENTRY( "gfx3", 0x0100, spritelayout2, 0, 1 )
    GFXDECODE_ENTRY( "gfx3", 0x0200, spritelayout2, 0, 1 )
    GFXDECODE_ENTRY( "gfx3", 0x0300, spritelayout2, 0, 1 )
GFXDECODE_END


static const char *const starcrus_sample_names[] =
{
    "*starcrus",
    "engine",	/* engine sound, channel 0 */
    "explos1",	/* explosion sound, first part, channel 1 */
    "explos2",	/* explosion sound, second part, channel 1 */
    "launch",	/* launch sound, channels 2 and 3 */
    0
};

static const samples_interface starcrus_samples_interface =
{
    4,	/* 4 channels */
	starcrus_sample_names
};


static MACHINE_CONFIG_START( starcrus, starcrus_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", I8080,9750000/9)  /* 8224 chip is a divide by 9 */
	MCFG_CPU_PROGRAM_MAP(starcrus_map)
	MCFG_CPU_IO_MAP(starcrus_io_map)
	MCFG_CPU_VBLANK_INT("screen", irq0_line_hold)

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(57)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
	MCFG_SCREEN_SIZE(32*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
	MCFG_SCREEN_UPDATE_STATIC(starcrus)

	MCFG_GFXDECODE(starcrus)
	MCFG_PALETTE_LENGTH(2)

	MCFG_PALETTE_INIT(black_and_white)
	MCFG_VIDEO_START(starcrus)

	/* sound hardware */
	MCFG_SPEAKER_STANDARD_MONO("mono")

	MCFG_SAMPLES_ADD("samples", starcrus_samples_interface)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END

/***************************************************************************

  Game ROMs

***************************************************************************/

ROM_START( starcrus )
    ROM_REGION( 0x10000, "maincpu", 0 )  /* code */
	ROM_LOAD( "starcrus.j1",   0x0000, 0x0200, CRC(0ee60a50) SHA1(7419e7cb4c589da53d4a10ad129373502682464e) )
	ROM_LOAD( "starcrus.k1",   0x0200, 0x0200, CRC(a7bc3bc4) SHA1(0e38076e921856608b1dd712687bef1c2522b4b8) )
	ROM_LOAD( "starcrus.l1",   0x0400, 0x0200, CRC(10d233ec) SHA1(8933cf9fc51716a9e8f75a4444e7d7070cf5834d) )
	ROM_LOAD( "starcrus.m1",   0x0600, 0x0200, CRC(2facbfee) SHA1(d78fb38de49da938fce2b55c8decc244efee6f94) )
	ROM_LOAD( "starcrus.n1",   0x0800, 0x0200, CRC(42083247) SHA1(b32d67c914833f18e9955cd1c3cb1d948be0a7d5) )
	ROM_LOAD( "starcrus.p1",   0x0a00, 0x0200, CRC(61dfe581) SHA1(e1802fedf94541e9ccd9786b60e90890485f422f) )
	ROM_LOAD( "starcrus.r1",   0x0c00, 0x0200, CRC(010cdcfe) SHA1(ae76f1739b468e2987ce949470b36f1a873e061d) )
	ROM_LOAD( "starcrus.s1",   0x0e00, 0x0200, CRC(da4e276b) SHA1(3298f7cb259803f118a47292cbb413df253ef74d) )

    ROM_REGION( 0x0200, "gfx1", 0 )
	ROM_LOAD( "starcrus.e6",   0x0000, 0x0200, CRC(54887a25) SHA1(562bf85cd063c2cc0a2f803095aaa6138dfb5bff) )

    ROM_REGION( 0x0200, "gfx2", 0 )
	ROM_LOAD( "starcrus.l2",   0x0000, 0x0200, CRC(54887a25) SHA1(562bf85cd063c2cc0a2f803095aaa6138dfb5bff) )

    ROM_REGION( 0x0400, "gfx3", 0 )
	ROM_LOAD( "starcrus.j4",   0x0000, 0x0200, CRC(25f15ae1) SHA1(7528edaa01ad5a167191c7e72394cb6009db1b27) )
	ROM_LOAD( "starcrus.g5",   0x0200, 0x0200, CRC(73b27f6e) SHA1(4a6cf9244556a2c2647d594c7a19fe1a374a57e6) )
ROM_END


GAME( 1977, starcrus, 0, starcrus, starcrus, 0, ROT0, "RamTek", "Star Cruiser", GAME_IMPERFECT_SOUND )

