#include "emu.h"
#include "includes/bogeyman.h"
PALETTE_INIT( bogeyman )
{
int i;
/* first 16 colors are RAM */
for (i = 0; i < 256; i++)
{
int bit0, bit1, bit2, r, g, b;
/* red component */
bit0 = (color_prom[0] >> 0) & 0x01;
bit1 = (color_prom[0] >> 1) & 0x01;
bit2 = (color_prom[0] >> 2) & 0x01;
r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
/* green component */
bit0 = (color_prom[0] >> 3) & 0x01;
bit1 = (color_prom[256] >> 0) & 0x01;
bit2 = (color_prom[256] >> 1) & 0x01;
g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
/* blue component */
bit0 = 0;
bit1 = (color_prom[256] >> 2) & 0x01;
bit2 = (color_prom[256] >> 3) & 0x01;
b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
palette_set_color(machine, i + 16, MAKE_RGB(r,g,b));
color_prom++;
}
}
WRITE8_HANDLER( bogeyman_videoram_w )
{
bogeyman_state *state = space->machine().driver_data<bogeyman_state>();
state->m_videoram[offset] = data;
tilemap_mark_tile_dirty(state->m_bg_tilemap, offset);
}
WRITE8_HANDLER( bogeyman_colorram_w )
{
bogeyman_state *state = space->machine().driver_data<bogeyman_state>();
state->m_colorram[offset] = data;
tilemap_mark_tile_dirty(state->m_bg_tilemap, offset);
}
WRITE8_HANDLER( bogeyman_videoram2_w )
{
bogeyman_state *state = space->machine().driver_data<bogeyman_state>();
state->m_videoram2[offset] = data;
tilemap_mark_tile_dirty(state->m_fg_tilemap, offset);
}
WRITE8_HANDLER( bogeyman_colorram2_w )
{
bogeyman_state *state = space->machine().driver_data<bogeyman_state>();
state->m_colorram2[offset] = data;
tilemap_mark_tile_dirty(state->m_fg_tilemap, offset);
}
WRITE8_HANDLER( bogeyman_paletteram_w )
{
/* RGB output is inverted */
paletteram_BBGGGRRR_w(space, offset, ~data);
}
static TILE_GET_INFO( get_bg_tile_info )
{
bogeyman_state *state = machine.driver_data<bogeyman_state>();
int attr = state->m_colorram[tile_index];
int gfxbank = ((((attr & 0x01) << 8) + state->m_videoram[tile_index]) / 0x80) + 3;
int code = state->m_videoram[tile_index] & 0x7f;
int color = (attr >> 1) & 0x07;
SET_TILE_INFO(gfxbank, code, color, 0);
}
static TILE_GET_INFO( get_fg_tile_info )
{
bogeyman_state *state = machine.driver_data<bogeyman_state>();
int attr = state->m_colorram2[tile_index];
int tile = state->m_videoram2[tile_index] | ((attr & 0x03) << 8);
int gfxbank = tile / 0x200;
int code = tile & 0x1ff;
SET_TILE_INFO(gfxbank, code, state->m_colbank, 0);
}
VIDEO_START( bogeyman )
{
bogeyman_state *state = machine.driver_data<bogeyman_state>();
state->m_bg_tilemap = tilemap_create(machine, get_bg_tile_info, tilemap_scan_rows, 16, 16, 16, 16);
state->m_fg_tilemap = tilemap_create(machine, get_fg_tile_info, tilemap_scan_rows, 8, 8, 32, 32);
tilemap_set_transparent_pen(state->m_fg_tilemap, 0);
}
static void draw_sprites( running_machine &machine, bitmap_t *bitmap, const rectangle *cliprect )
{
bogeyman_state *state = machine.driver_data<bogeyman_state>();
int offs;
for (offs = 0; offs < state->m_spriteram_size; offs += 4)
{
int attr = state->m_spriteram[offs];
if (attr & 0x01)
{
int code = state->m_spriteram[offs + 1] + ((attr & 0x40) << 2);
int color = (attr & 0x08) >> 3;
int flipx = !(attr & 0x04);
int flipy = attr & 0x02;
int sx = state->m_spriteram[offs + 3];
int sy = (240 - state->m_spriteram[offs + 2]) & 0xff;
int multi = attr & 0x10;
if (multi) sy -= 16;
if (flip_screen_get(machine))
{
sx = 240 - sx;
sy = 240 - sy;
flipx = !flipx;
flipy = !flipy;
}
drawgfx_transpen(bitmap, cliprect,
machine.gfx[2],
code, color,
flipx, flipy,
sx, sy, 0);
if (multi)
{
drawgfx_transpen(bitmap,cliprect,
machine.gfx[2],
code + 1, color,
flipx, flipy,
sx, sy + (flip_screen_get(machine) ? -16 : 16), 0);
}
}
}
}
SCREEN_UPDATE( bogeyman )
{
bogeyman_state *state = screen->machine().driver_data<bogeyman_state>();
tilemap_draw(bitmap, cliprect, state->m_bg_tilemap, 0, 0);
draw_sprites(screen->machine(), bitmap, cliprect);
tilemap_draw(bitmap, cliprect, state->m_fg_tilemap, 0, 0);
return 0;
}