// license:BSD-3-Clause // copyright-holders:Tomasz Slanina /*************************************************************************** Mustache Boy (c)1987 March Electronics ***************************************************************************/ #include "emu.h" #include "includes/mustache.h" WRITE8_MEMBER(mustache_state::videoram_w) { m_videoram[offset] = data; m_bg_tilemap->mark_tile_dirty(offset / 2); } WRITE8_MEMBER(mustache_state::video_control_w) { /* It is assumed that screen flipping is controlled by both hardware (via a DIP switch, labeled "Hard SW" on the operator's sheet) and software, as in some Irem games */ flip_screen_set((data & 0x01) ^ BIT(~m_dswb->read(), 7)); /* tile bank */ if ((m_control_byte ^ data) & 0x08) { m_control_byte = data; machine().tilemap().mark_all_dirty(); } } WRITE8_MEMBER(mustache_state::scroll_w) { m_bg_tilemap->set_scrollx(0, 0x100 - data); m_bg_tilemap->set_scrollx(1, 0x100 - data); m_bg_tilemap->set_scrollx(2, 0x100 - data); m_bg_tilemap->set_scrollx(3, 0x100); } TILE_GET_INFO_MEMBER(mustache_state::get_bg_tile_info) { int attr = m_videoram[2 * tile_index + 1]; int code = m_videoram[2 * tile_index] + ((attr & 0x60) << 3) + ((m_control_byte & 0x08) << 7); int color = attr & 0x0f; SET_TILE_INFO_MEMBER(0, code, color, ((attr & 0x10) ? TILE_FLIPX : 0) | ((attr & 0x80) ? TILE_FLIPY : 0) ); } void mustache_state::video_start() { m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(mustache_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS_FLIP_X, 8, 8, 64, 32); m_bg_tilemap->set_scroll_rows(4); save_item(NAME(m_control_byte)); } void mustache_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect ) { rectangle clip = cliprect; gfx_element *gfx = m_gfxdecode->gfx(1); const rectangle &visarea = m_screen->visible_area(); int offs; for (offs = 0;offs < m_spriteram.bytes();offs += 4) { int sy = 240-m_spriteram[offs]; int sx = 240-m_spriteram[offs+3]; int code = m_spriteram[offs+2]; int attr = m_spriteram[offs+1]; int color = (attr & 0xe0)>>5; if (sy == 240) continue; code+=(attr&0x0c)<<6; if ((m_control_byte & 0xa)) clip.max_y = visarea.max_y; else if (flip_screen()) clip.min_y = visarea.min_y + 56; else clip.max_y = visarea.max_y - 56; if (flip_screen()) { sx = 240 - sx; sy = 232 - sy; } gfx->transpen(bitmap,clip, code, color, flip_screen(),flip_screen(), sx,sy,0); } } uint32_t mustache_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0); draw_sprites(bitmap, cliprect); return 0; }