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bosco: fix tilemap offset problem (nw)

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hap 2020-06-12 13:01:34 +02:00
parent a9f41ad0d1
commit 089aa0b143
2 changed files with 34 additions and 18 deletions
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17
src/mame/drivers/galaga.cpp
View File

@ -673,13 +673,6 @@ Notes:
TODO:
----
- bosco: is the scrolling tilemap placement correct? It is currently aligned so that
the test grid shown on startup is correct, but this way an unerased grey strip
remains on the left of the screen during the title sequence. Alignment of the
bullets/radar blips is also mysterious. Currently the radar blips are perfectly
aligned with the radar, but the alignment of the player bullets with the player
ship differs by one horizontal pixel when the screen is flipped.
- gallag/gatsbee: explosions are not emulated since the bootleg board doesn't have
the 54XX custom. Should probably use samples like Battles?
@ -3493,11 +3486,11 @@ void battles_state::driver_init()
/* Original Namco hardware, with Namco Customs */
// YEAR, NAME, PARENT, MACHINE, INPUT, STATE, INIT, MONITOR,COMPANY,FULLNAME,FLAGS
GAME( 1981, bosco, 0, bosco, bosco, bosco_state, empty_init, ROT0, "Namco", "Bosconian (new version)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS )
GAME( 1981, boscoo, bosco, bosco, bosco, bosco_state, empty_init, ROT0, "Namco", "Bosconian (old version)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS )
GAME( 1981, boscoo2, bosco, bosco, bosco, bosco_state, empty_init, ROT0, "Namco", "Bosconian (older version)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS )
GAME( 1981, boscomd, bosco, bosco, boscomd, bosco_state, empty_init, ROT0, "Namco (Midway license)", "Bosconian (Midway, new version)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS )
GAME( 1981, boscomdo, bosco, bosco, boscomd, bosco_state, empty_init, ROT0, "Namco (Midway license)", "Bosconian (Midway, old version)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_GRAPHICS )
GAME( 1981, bosco, 0, bosco, bosco, bosco_state, empty_init, ROT0, "Namco", "Bosconian (new version)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, boscoo, bosco, bosco, bosco, bosco_state, empty_init, ROT0, "Namco", "Bosconian (old version)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, boscoo2, bosco, bosco, bosco, bosco_state, empty_init, ROT0, "Namco", "Bosconian (older version)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, boscomd, bosco, bosco, boscomd, bosco_state, empty_init, ROT0, "Namco (Midway license)", "Bosconian (Midway, new version)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, boscomdo, bosco, bosco, boscomd, bosco_state, empty_init, ROT0, "Namco (Midway license)", "Bosconian (Midway, old version)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, galaga, 0, galaga, galaga, galaga_state, init_galaga, ROT90, "Namco", "Galaga (Namco rev. B)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, galagao, galaga, galaga, galaga, galaga_state, init_galaga, ROT90, "Namco", "Galaga (Namco)", MACHINE_SUPPORTS_SAVE )

35
src/mame/video/bosco.cpp
View File

@ -123,8 +123,6 @@ VIDEO_START_MEMBER(bosco_state,bosco)
m_bg_tilemap->configure_groups(*m_gfxdecode->gfx(0), 0x1f);
m_fg_tilemap->configure_groups(*m_gfxdecode->gfx(0), 0x1f);
m_bg_tilemap->set_scrolldx(3,3);
m_spriteram = m_videoram + 0x03d4;
m_spriteram_size = 0x0c;
m_spriteram2 = m_spriteram + 0x0800;
@ -185,13 +183,13 @@ void bosco_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect,
for (offs = 0;offs < m_spriteram_size;offs += 2)
{
int sx = spriteram[offs + 1] - 1;
int sx = spriteram[offs + 1] - 2;
int sy = 240 - spriteram_2[offs];
int flipx = spriteram[offs] & 1;
int flipy = spriteram[offs] & 2;
int color = spriteram_2[offs + 1] & 0x3f;
if (flip) sx += 32-2;
if (flip) sx += 32-1;
m_gfxdecode->gfx(1)->transmask(bitmap,cliprect,
(spriteram[offs] & 0xfc) >> 2,
@ -246,13 +244,16 @@ uint32_t bosco_state::screen_update_bosco(screen_device &screen, bitmap_ind16 &b
fg_clip.min_x = 28*8;
}
bg_clip &= cliprect;
fg_clip &= cliprect;
bitmap.fill(m_palette->black_pen(), cliprect);
m_starfield->draw_starfield(bitmap,cliprect,flip);
m_starfield->draw_starfield(bitmap,bg_clip,flip);
m_bg_tilemap->draw(screen, bitmap, bg_clip, 0,0);
m_fg_tilemap->draw(screen, bitmap, fg_clip, 0,0);
draw_sprites(bitmap,cliprect,flip);
draw_sprites(bitmap,bg_clip,flip);
/* draw the high priority characters */
m_bg_tilemap->draw(screen, bitmap, bg_clip, 1,0);
@ -260,6 +261,28 @@ uint32_t bosco_state::screen_update_bosco(screen_device &screen, bitmap_ind16 &b
draw_bullets(bitmap,cliprect,flip);
/* It looks like H offsets 221-223 are skipped over, moving the radar tilemap
(including the 'bullets' on it) 3 pixels to the left */
for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
{
if (flip)
{
for (int x = 63; x >= 0; x--)
{
bitmap.pix16(y, x + 3) = bitmap.pix16(y, x);
bitmap.pix16(y, x) = m_palette->black_pen();
}
}
else
{
for (int x = 224; x < 288; x++)
{
bitmap.pix16(y, x - 3) = bitmap.pix16(y, x);
bitmap.pix16(y, x) = m_palette->black_pen();
}
}
}
return 0;
}