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Gaplus : modify source code comments and change dipswitch defaults (#6752)

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gaplus.cpp updates: [sasuke-arcade]
- Modify source code comments and change dipswitch defaults
- Changed Extend's default settings to Namco's factory settings (5k/15k/15k every)
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sasuke-arcade 2020-05-31 01:59:31 +09:00 committed by GitHub
parent 531b2fd3ba
commit 4b4cfed14d
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 10 additions and 4 deletions
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2
src/mame/drivers/gaplus.cpp
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@ -364,7 +364,7 @@ static INPUT_PORTS_START( gaplus )
PORT_DIPNAME( 0x08, 0x08, "Round Advance" ) PORT_DIPLOCATION("SW2:5")
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x07, 0x00, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:6,7,8")
PORT_DIPNAME( 0x07, 0x07, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:6,7,8")
PORT_DIPSETTING( 0x00, "30k 70k and every 70k" )
PORT_DIPSETTING( 0x01, "30k 100k and every 100k" )
PORT_DIPSETTING( 0x02, "30k 100k and every 200k" )

12
src/mame/video/gaplus.cpp
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@ -117,6 +117,8 @@ TILE_GET_INFO_MEMBER(gaplus_base_state::get_tile_info)
#define SPEED_1 1.0f
#define SPEED_2 2.0f
#define SPEED_3 3.0f
/* starfield: top and bottom clipping size */
#define STARFIELD_CLIPPING_X 16
void gaplus_base_state::starfield_init()
@ -247,7 +249,11 @@ void gaplus_base_state::starfield_render(bitmap_ind16 &bitmap)
int x = m_stars[i].x;
int y = m_stars[i].y;
/* Some stars in the second tier will flash erratically while changing their movements. */
/* Some stars in the second layer will flash erratically when changing their movements.
(It is when at reverse scrolling stage or get elephant head.)
This is based on a guess from the video output of the PCB.
https://www.youtube.com/watch?v=_1x5Oid3uPg (3:35-, 13:12-)
https://www.youtube.com/watch?v=vrmZAUJYXnI (3:14-, 12:40-) */
if (m_stars[i].set == 1 && m_starfield_control[2] != 0x85 && i % 2 == 0)
{
int bit = BIT(m_starfield_framecount + i, 3) ? 1 : 2;
@ -384,12 +390,12 @@ WRITE_LINE_MEMBER(gaplus_base_state::screen_vblank)/* update starfields */
break;
case 0x9f:
/* scroll left (speed 2) */
/* scroll left (speed 3) */
stars[i].y += SPEED_3;
break;
case 0xaf:
/* scroll right (speed 1) */
/* scroll right (speed 3) */
stars[i].y -= SPEED_3;
break;
}