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galaxian.c - jumpbug: fixed MT05969 by applying the same star generator as Galaxian. Schematics aren't available, but the readme of the rom dump states that the pcb is very similar to Galaxian. (nw)

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This commit is contained in:
Ivan Vangelista 2015-09-20 09:33:15 +02:00
parent ed89f8d6e3
commit 2298378b5d
1 changed files with 17 additions and 2 deletions
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19
src/mame/video/galaxian.c
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@ -998,8 +998,23 @@ void galaxian_state::jumpbug_draw_background(bitmap_rgb32 &bitmap, const rectang
/* blue background - 390 ohm resistor */ /* blue background - 390 ohm resistor */
bitmap.fill(m_background_enable ? rgb_t(0,0,0x56) : rgb_t::black, cliprect); bitmap.fill(m_background_enable ? rgb_t(0,0,0x56) : rgb_t::black, cliprect);
/* render stars same as scramble but nothing in the status area */ /* render stars same as galaxian but nothing in the status area */
scramble_draw_stars(bitmap, cliprect, 240);
/* update the star origin to the current frame */
stars_update_origin();
/* render stars if enabled */
if (m_stars_enabled)
{
int y;
/* iterate over scanlines */
for (y = cliprect.min_y; y <= cliprect.max_y; y++)
{
UINT32 star_offs = m_star_rng_origin + y * 512;
stars_draw_row(bitmap, 240, y, star_offs, 0xff);
}
}
} }