// license:BSD-3-Clause
// copyright-holders:Mike Coates
#include "machine/s2636.h"
class zac2650_state : public driver_device
{
public:
zac2650_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_s2636(*this, "s2636"),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette"),
m_videoram(*this, "videoram"),
m_s2636_0_ram(*this, "s2636_0_ram") { }
/* devices */
required_device<cpu_device> m_maincpu;
required_device<s2636_device> m_s2636;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
/* memory pointers */
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_s2636_0_ram;
bitmap_ind16 m_bitmap;
bitmap_ind16 m_spritebitmap;
int m_CollisionBackground;
int m_CollisionSprite;
tilemap_t *m_bg_tilemap;
DECLARE_WRITE8_MEMBER(tinvader_sound_w);
DECLARE_WRITE8_MEMBER(tinvader_videoram_w);
DECLARE_READ8_MEMBER(zac_s2636_r);
DECLARE_WRITE8_MEMBER(zac_s2636_w);
DECLARE_READ8_MEMBER(tinvader_port_0_r);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
virtual void video_start() override;
DECLARE_PALETTE_INIT(zac2650);
UINT32 screen_update_tinvader(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
int SpriteCollision(int first,int second);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
};