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Fixed 03176: cheekyms: Graphic Regression [Pierpaolo Prazzoli]

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This commit is contained in:
Pierpaolo Prazzoli 2009-05-15 09:43:37 +00:00
parent f7627e13a3
commit 1e887cf719
2 changed files with 43 additions and 44 deletions
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4
src/mame/drivers/cheekyms.c
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@ -41,7 +41,7 @@ static ADDRESS_MAP_START( io_map, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x00) AM_READ_PORT("DSW")
AM_RANGE(0x01, 0x01) AM_READ_PORT("INPUTS")
AM_RANGE(0x20, 0x3f) AM_WRITE(SMH_RAM) AM_BASE(&cheekyms_spriteram)
AM_RANGE(0x20, 0x3f) AM_WRITEONLY AM_BASE(&cheekyms_spriteram)
AM_RANGE(0x40, 0x40) AM_WRITE(cheekyms_port_40_w)
AM_RANGE(0x80, 0x80) AM_WRITE(cheekyms_port_80_w) AM_BASE(&cheekyms_port_80)
ADDRESS_MAP_END
@ -180,4 +180,4 @@ ROM_END
GAME( 1980, cheekyms, 0, cheekyms, cheekyms, 0, ROT270, "Universal", "Cheeky Mouse", GAME_IMPERFECT_GRAPHICS | GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE )
GAME( 1980, cheekyms, 0, cheekyms, cheekyms, 0, ROT270, "Universal", "Cheeky Mouse", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE )

83
src/mame/video/cheekyms.c
View File

@ -17,7 +17,7 @@ UINT8 *cheekyms_spriteram;
UINT8 *cheekyms_port_80;
static tilemap *cheekyms_tilemap;
static bitmap_t *bitmap_buffer;
/* bit 3 and 7 of the char color PROMs are used for something -- not currently emulated -
thus GAME_IMPERFECT_GRAPHICS */
@ -97,9 +97,14 @@ static TILE_GET_INFO( cheekyms_get_tile_info )
SET_TILE_INFO(0, code, color, 0);
}
VIDEO_START( cheekyms )
{
int width, height;
width = video_screen_get_width(machine->primary_screen);
height = video_screen_get_height(machine->primary_screen);
bitmap_buffer = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16);
cheekyms_tilemap = tilemap_create(machine, cheekyms_get_tile_info, tilemap_scan_rows, 8, 8, 32, 32);
tilemap_set_transparent_pen(cheekyms_tilemap, 0);
}
@ -146,57 +151,51 @@ static void draw_sprites(gfx_element **gfx, bitmap_t *bitmap, const rectangle *c
VIDEO_UPDATE( cheekyms )
{
#define SCROLL_X_MIN 8
#define SCROLL_X_MAX 12
#define SCROLL_Y_MIN 6
#define SCROLL_Y_MAX 25
const rectangle clip_no_scroll_top = { 0*8, 32*8-1, 0*8, SCROLL_Y_MIN*8-1 };
const rectangle clip_no_scroll_bottom = { 0*8, 32*8-1, (SCROLL_Y_MAX+1)*8, 32*8-1 };
const rectangle clip_no_scroll_left_nf = { 0*8, SCROLL_X_MIN*8-1, SCROLL_Y_MIN*8, (SCROLL_Y_MAX+1)*8-1 };
const rectangle clip_no_scroll_right_nf = { (SCROLL_X_MAX+1)*8, 32*8-1, SCROLL_Y_MIN*8, (SCROLL_Y_MAX+1)*8-1 };
const rectangle clip_no_scroll_left_f = { (32-SCROLL_X_MIN)*8, 32*8-1, SCROLL_Y_MIN*8, (SCROLL_Y_MAX+1)*8-1 };
const rectangle clip_no_scroll_right_f = { 0*8, (32-SCROLL_X_MAX-1)*8-1, SCROLL_Y_MIN*8, (SCROLL_Y_MAX+1)*8-1 };
const rectangle clip_scroll_nf = { SCROLL_X_MIN*8, 13*8-1, SCROLL_Y_MIN*8, (SCROLL_Y_MAX+1)*8-1 };
const rectangle clip_scroll_f = { (32-SCROLL_X_MAX-1)*8, (32-SCROLL_X_MIN)*8-1, SCROLL_Y_MIN*8, (SCROLL_Y_MAX+1)*8-1 };
int y,x;
int scrolly = ((*cheekyms_port_80 >> 3) & 0x07);
int flip = *cheekyms_port_80 & 0x80;
tilemap_mark_all_tiles_dirty(ALL_TILEMAPS);
tilemap_set_flip(ALL_TILEMAPS, flip ? TILEMAP_FLIPX | TILEMAP_FLIPY : 0);
bitmap_fill(bitmap, cliprect, 0);
bitmap_fill(bitmap_buffer, cliprect, 0);
/* sprites go under the playfield */
draw_sprites(screen->machine->gfx, bitmap, cliprect, flip);
/* draw the non-scrolling parts of the playfield first */
tilemap_set_scrolly(cheekyms_tilemap, 0, 0);
tilemap_draw(bitmap, &clip_no_scroll_top, cheekyms_tilemap, 0, 0);
tilemap_draw(bitmap, &clip_no_scroll_bottom, cheekyms_tilemap, 0, 0);
if (flip)
/* draw the tilemap to a temp bitmap */
tilemap_draw(bitmap_buffer, cliprect, cheekyms_tilemap, 0, 0);
/* draw the tilemap to the final bitmap applying the scroll to the man character */
for(y = cliprect->min_y; y <= cliprect->max_y; y++)
{
tilemap_draw(bitmap, &clip_no_scroll_left_f, cheekyms_tilemap, 0, 0);
tilemap_draw(bitmap, &clip_no_scroll_right_f, cheekyms_tilemap, 0, 0);
for(x = cliprect->min_x; x <= cliprect->max_x; x++)
{
int in_man_area;
if(flip)
{
in_man_area = (x >= (32-12-1)*8 && x < (32-8)*8 && y > 5*8 && y < 27*8);
}
else
{
in_man_area = (x >= 8*8 && x < 12*8 && y > 5*8 && y < 27*8);
}
if(in_man_area)
{
if ((y + scrolly) < 27*8 && *BITMAP_ADDR16(bitmap_buffer, y + scrolly, x) != 0)
*BITMAP_ADDR16(bitmap, y, x) = *BITMAP_ADDR16(bitmap_buffer, y + scrolly, x);
}
else
{
if(*BITMAP_ADDR16(bitmap_buffer, y, x) != 0)
*BITMAP_ADDR16(bitmap, y, x) = *BITMAP_ADDR16(bitmap_buffer, y, x);
}
}
}
else
{
tilemap_draw(bitmap, &clip_no_scroll_left_nf, cheekyms_tilemap, 0, 0);
tilemap_draw(bitmap, &clip_no_scroll_right_nf, cheekyms_tilemap, 0, 0);
}
/* now the scrolling part */
if (flip)
{
tilemap_set_scrolly(cheekyms_tilemap, 0, -((*cheekyms_port_80 >> 3) & 0x07));
tilemap_draw(bitmap, &clip_scroll_f, cheekyms_tilemap, 0, 0);
}
else
{
tilemap_set_scrolly(cheekyms_tilemap, 0, (*cheekyms_port_80 >> 3) & 0x07);
tilemap_draw(bitmap, &clip_scroll_nf, cheekyms_tilemap, 0, 0);
}
return 0;
}