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tattack.cpp: added wall drawing (nw)

master
angelosa 2017-11-09 23:19:55 +01:00
parent 5c3e7fa9b0
commit 73fce34f42
1 changed files with 68 additions and 26 deletions
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94
src/mame/drivers/tattack.cpp
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@ -54,9 +54,10 @@ class tattack_state : public driver_device
public:
tattack_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_ram(*this, "ram"),
m_videoram(*this, "videoram"),
m_colorram(*this, "colorram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode") { }
// DECLARE_WRITE8_MEMBER(paddle_w);
@ -67,12 +68,15 @@ public:
DECLARE_PALETTE_INIT(tattack);
uint32_t screen_update_tattack(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
private:
required_device<cpu_device> m_maincpu;
required_shared_ptr<uint8_t> m_ram;
required_shared_ptr<uint8_t> m_videoram;
required_shared_ptr<uint8_t> m_colorram;
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
tilemap_t *m_tmap;
uint8_t m_ball_regs[2];
void draw_gameplay_bitmap(bitmap_ind16 &bitmap, const rectangle &cliprect);
};
@ -93,23 +97,61 @@ TILE_GET_INFO_MEMBER(tattack_state::get_tile_info)
0);
}
uint32_t tattack_state::screen_update_tattack(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
void tattack_state::draw_gameplay_bitmap(bitmap_ind16 &bitmap, const rectangle &cliprect)
{
const uint8_t white_pen = 0xf;
m_tmap->mark_all_dirty();
m_tmap->draw(screen, bitmap, cliprect, 0,0);
// draw ball
for(int xi=0;xi<4;xi++)
for(int yi=0;yi<4;yi++)
const uint8_t green_pen = 0x5;
const uint8_t yellow_pen = 0x7;
uint16_t ram_offs;
const int x_base = -8;
int xi,yi;
// draw wall pattern
for(ram_offs=0x50;ram_offs<0x5e;ram_offs++)
{
uint8_t cur_column = m_ram[ram_offs];
for(int bit=7;bit>-1;bit--)
{
int resx = m_ball_regs[0]+xi-2;
bool draw_block = ((cur_column >> bit) & 1) == 1;
if(draw_block == true)
{
for(xi=0;xi<3;xi++)
{
for(yi=0;yi<15;yi++)
{
int resx = bit*4+xi+160+x_base;
int resy = (ram_offs & 0xf)*16+yi+16;
if(cliprect.contains(resx,resy))
bitmap.pix16(resy, resx) = (bit & 4 ? yellow_pen : green_pen);
}
}
}
}
}
// draw ball
for(xi=0;xi<4;xi++)
for(yi=0;yi<4;yi++)
{
int resx = m_ball_regs[0]+xi-2+x_base;
int resy = m_ball_regs[1]+yi;
if(cliprect.contains(resx,resy))
bitmap.pix16(resy, resx) = (white_pen);
}
}
uint32_t tattack_state::screen_update_tattack(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_tmap->mark_all_dirty();
m_tmap->draw(screen, bitmap, cliprect, 0,0);
draw_gameplay_bitmap(bitmap, cliprect);
return 0;
}
@ -133,7 +175,7 @@ WRITE8_MEMBER(tattack_state::ball_w)
static ADDRESS_MAP_START( mem, AS_PROGRAM, 8, tattack_state )
AM_RANGE(0x0000, 0x0fff) AM_ROM
// AM_RANGE(0x4000, 0x4000) AM_READNOP $315
AM_RANGE(0x4000, 0x4000) AM_READNOP // $315, checks again with same memory, loops if different (?)
AM_RANGE(0x5000, 0x53ff) AM_RAM AM_SHARE("videoram")
AM_RANGE(0x7000, 0x73ff) AM_RAM AM_SHARE("colorram") // color map ? something else .. only bits 1-3 are used
AM_RANGE(0x6000, 0x6000) AM_READ_PORT("DSW2")
@ -142,21 +184,21 @@ static ADDRESS_MAP_START( mem, AS_PROGRAM, 8, tattack_state )
AM_RANGE(0xc001, 0xc002) AM_WRITENOP // bit 7 = strobe ($302)
AM_RANGE(0xc005, 0xc005) AM_WRITENOP
AM_RANGE(0xc006, 0xc007) AM_WRITE(ball_w)
AM_RANGE(0xe000, 0xe3ff) AM_RAM
AM_RANGE(0xe000, 0xe3ff) AM_RAM AM_SHARE("ram")
ADDRESS_MAP_END
static INPUT_PORTS_START( tattack )
PORT_START("INPUTS")
PORT_DIPNAME( 0x01, 0x00, "1-01" )
PORT_DIPNAME( 0x01, 0x00, "1-01" ) // reset switch?
PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x00, "1-02" )
PORT_DIPNAME( 0x02, 0x02, "1-02" )
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x00, "1-03" )
PORT_DIPNAME( 0x04, 0x04, "1-03" )
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x00, "1-04" )
PORT_DIPNAME( 0x08, 0x08, "1-04" )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON3 )
@ -299,18 +341,18 @@ ROM_END
DRIVER_INIT_MEMBER(tattack_state,tattack)
{
uint8_t *rom = memregion("maincpu")->base();
// uint8_t *rom = memregion("maincpu")->base();
rom[0x1b4]=0;
rom[0x1b5]=0;
// rom[0x1b4]=0;
// rom[0x1b5]=0;
rom[0x262]=0;
rom[0x263]=0;
rom[0x264]=0;
// rom[0x262]=0;
// rom[0x263]=0;
// rom[0x264]=0;
rom[0x32a]=0;
rom[0x32b]=0;
rom[0x32c]=0;
// rom[0x32a]=0;
// rom[0x32b]=0;
// rom[0x32c]=0;
/*
possible jumps to 0 (protection checks?)