// license:BSD-3-Clause // copyright-holders:Ernesto Corvi, Roberto Fresca /*************************************************************************** Tehkan World Cup - (c) Tehkan 1985 Ernesto Corvi ernesto@imagina.com Roberto Juan Fresca robbiex@rocketmail.com ***************************************************************************/ #include "emu.h" #include "includes/tehkanwc.h" WRITE8_MEMBER(tehkanwc_state::videoram_w) { m_videoram[offset] = data; m_fg_tilemap->mark_tile_dirty(offset); } WRITE8_MEMBER(tehkanwc_state::colorram_w) { m_colorram[offset] = data; m_fg_tilemap->mark_tile_dirty(offset); } WRITE8_MEMBER(tehkanwc_state::videoram2_w) { m_videoram2[offset] = data; m_bg_tilemap->mark_tile_dirty(offset / 2); } WRITE8_MEMBER(tehkanwc_state::scroll_x_w) { m_scroll_x[offset] = data; } WRITE8_MEMBER(tehkanwc_state::scroll_y_w) { m_bg_tilemap->set_scrolly(0, data); } WRITE8_MEMBER(tehkanwc_state::flipscreen_x_w) { flip_screen_x_set(data & 0x40); } WRITE8_MEMBER(tehkanwc_state::flipscreen_y_w) { flip_screen_y_set(data & 0x40); } WRITE8_MEMBER(tehkanwc_state::gridiron_led0_w) { m_led0 = data; } WRITE8_MEMBER(tehkanwc_state::gridiron_led1_w) { m_led1 = data; } TILE_GET_INFO_MEMBER(tehkanwc_state::get_bg_tile_info) { int offs = tile_index * 2; int attr = m_videoram2[offs + 1]; int code = m_videoram2[offs] + ((attr & 0x30) << 4); int color = attr & 0x0f; int flags = ((attr & 0x40) ? TILE_FLIPX : 0) | ((attr & 0x80) ? TILE_FLIPY : 0); SET_TILE_INFO_MEMBER(2, code, color, flags); } TILE_GET_INFO_MEMBER(tehkanwc_state::get_fg_tile_info) { int attr = m_colorram[tile_index]; int code = m_videoram[tile_index] + ((attr & 0x10) << 4); int color = attr & 0x0f; int flags = ((attr & 0x40) ? TILE_FLIPX : 0) | ((attr & 0x80) ? TILE_FLIPY : 0); tileinfo.category = (attr & 0x20) ? 0 : 1; SET_TILE_INFO_MEMBER(0, code, color, flags); } void tehkanwc_state::video_start() { m_bg_tilemap = &machine().tilemap().create( *m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(tehkanwc_state::get_bg_tile_info)), TILEMAP_SCAN_ROWS, 16, 8, 32, 32); m_fg_tilemap = &machine().tilemap().create( *m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(tehkanwc_state::get_fg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 32, 32); m_fg_tilemap->set_transparent_pen(0); save_item(NAME(m_scroll_x)); save_item(NAME(m_led0)); save_item(NAME(m_led1)); } /* Gridiron Fight has a LED display on the control panel, to let each player choose the formation without letting the other know. ---0--- | | 5 1 | | ---6--- | | 4 2 | | ---3--- bit 7 = enable (0 = display off) */ void tehkanwc_state::gridiron_draw_led(bitmap_ind16 &bitmap, const rectangle &cliprect, uint8_t led, int player) { if (led & 0x80) m_digits[player] = led & 0x7f; else m_digits[player] = 0; } void tehkanwc_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect) { for (int offs = 0;offs < m_spriteram.bytes();offs += 4) { int attr = m_spriteram[offs + 1]; int code = m_spriteram[offs] + ((attr & 0x08) << 5); int color = attr & 0x07; int flipx = attr & 0x40; int flipy = attr & 0x80; int sx = m_spriteram[offs + 2] + ((attr & 0x20) << 3) - 128; int sy = m_spriteram[offs + 3]; if (flip_screen_x()) { sx = 240 - sx; flipx = !flipx; } if (flip_screen_y()) { sy = 240 - sy; flipy = !flipy; } m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code, color, flipx, flipy, sx, sy, 0); } } uint32_t tehkanwc_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_bg_tilemap->set_scrollx(0, m_scroll_x[0] + 256 * m_scroll_x[1]); m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0); m_fg_tilemap->draw(screen, bitmap, cliprect, 0, 0); draw_sprites(bitmap, cliprect); m_fg_tilemap->draw(screen, bitmap, cliprect, 1, 0); gridiron_draw_led(bitmap, cliprect, m_led0, 0); gridiron_draw_led(bitmap, cliprect, m_led1, 1); return 0; }