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#include "sound/samples.h"

struct jungler_star
{
	int x, y, color;
};

#define JUNGLER_MAX_STARS 1000

class rallyx_state : public driver_device
{
public:
	rallyx_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_videoram(*this, "videoram"),
		m_radarattr(*this, "radarattr") { }

	/* memory pointers */
	required_shared_ptr<UINT8> m_videoram;
	required_shared_ptr<UINT8> m_radarattr;
	UINT8 *  m_spriteram;
	UINT8 *  m_spriteram2;
	UINT8 *  m_radarx;
	UINT8 *  m_radary;

	/* video-related */
	tilemap_t  *m_bg_tilemap;
	tilemap_t  *m_fg_tilemap;

	/* misc */
	int      m_last_bang;
	int      m_spriteram_base;
	int      m_stars_enable;
	int      m_total_stars;
	UINT8    m_drawmode_table[4];
	struct jungler_star m_stars[JUNGLER_MAX_STARS];

	/* devices */
	cpu_device *m_maincpu;
	samples_device *m_samples;

	UINT8    m_main_irq_mask;
	DECLARE_WRITE8_MEMBER(rallyx_interrupt_vector_w);
	DECLARE_WRITE8_MEMBER(rallyx_bang_w);
	DECLARE_WRITE8_MEMBER(rallyx_latch_w);
	DECLARE_WRITE8_MEMBER(locomotn_latch_w);
	DECLARE_WRITE8_MEMBER(rallyx_videoram_w);
	DECLARE_WRITE8_MEMBER(rallyx_scrollx_w);
	DECLARE_WRITE8_MEMBER(rallyx_scrolly_w);
	DECLARE_WRITE8_MEMBER(tactcian_starson_w);
	TILEMAP_MAPPER_MEMBER(fg_tilemap_scan);
	TILE_GET_INFO_MEMBER(rallyx_bg_get_tile_info);
	TILE_GET_INFO_MEMBER(rallyx_fg_get_tile_info);
	TILE_GET_INFO_MEMBER(locomotn_bg_get_tile_info);
	TILE_GET_INFO_MEMBER(locomotn_fg_get_tile_info);
	DECLARE_MACHINE_START(rallyx);
	DECLARE_MACHINE_RESET(rallyx);
	DECLARE_VIDEO_START(rallyx);
	DECLARE_PALETTE_INIT(rallyx);
	DECLARE_VIDEO_START(jungler);
	DECLARE_PALETTE_INIT(jungler);
	DECLARE_VIDEO_START(locomotn);
	DECLARE_VIDEO_START(commsega);
	UINT32 screen_update_rallyx(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	UINT32 screen_update_jungler(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	UINT32 screen_update_locomotn(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};


/*----------- defined in video/rallyx.c -----------*/