new file mode 100644
--- /dev/null
+++ b/scn2k/scn2k.h
@@ -0,0 +1,236 @@
+#ifndef __SCN2k_H__
+#define __SCN2k_H__
+
+#include<vector>
+#include<string>
+#include<map>
+#include<set>
+
+/*
+namespace Widget {
+	class Text;
+	class Button;
+	class TextButton;
+	class Label;
+	class Dialog;
+	class AnmTime;
+}
+*/
+	class WidText;
+	class WidButton;
+	class WidTextButton;
+	class WidLabel;
+	class WidDialog;
+	class WidAnmTime;
+namespace Event {
+	class Container;
+}
+class PicBase;
+class PicContainer;
+class AyuSysConfig;
+class Surface;
+
+void dprintf(const char* fmt, ...);
+void eprintf(const char* fmt, ...);
+
+struct VarInfo {
+#define TYPE_NONSYSVARMAX 5
+#define TYPE_VARMAX 9
+#define TYPE_VARLOCSTR 10
+#define TYPE_VARSYSSTR 12
+#define TYPE_VARSTR 18
+#define TYPE_STR 58
+#define TYPE_VAL 68
+#define TYPE_SYS 0xc8
+#define TYPE_END 0x7f
+
+#define TYPE_SYS_SYS 0
+#define TYPE_SYS_SKIPMODE 1
+	int type;
+	int number;
+	int value;
+	VarInfo() { type = TYPE_VAL; value = 0;}
+	VarInfo(int n) { type = TYPE_VAL; value = n;}
+	VarInfo(const VarInfo& i) { type = i.type; number = i.number; value = i.value;}
+};
+class Flags {
+/* flag:
+**  type 0-5 : ローカル整数、各2000個
+**  type 6, 25 : グローバル整数、2000個
+**      type 10,11: ローカル整数??、各2000個
+**	type 12 : グローバル文字列、2000個 (今は無視しても良いが)
+**	type 18 : ローカル文字列、2000個
+**	type 25: システム変数（マウス座標など？） 1000 個？
+**  type 26-32, 51 : 1-bit access to 0-6, 25
+**  type 52-58, 77 : 2-bit access to 0-6, 25
+**  type 78-84, 103 : 4-bit access to 0-6, 25
+**  type 104-110, 129 : 8-bit access to 0-6, 25
+*/
+	typedef unsigned int uint;
+	int sys;
+	int var[TYPE_VARMAX+1][2000];
+	std::string str[2000];
+	std::string sys_str[2000];
+	std::string loc_str[3];
+public:
+	Flags(void);
+	int operator () () const;
+	int operator () (VarInfo info) const;
+	void Str(int type, unsigned int number, char* buf, int sz) const;
+	std::string Str(int type, unsigned int number) const;
+	std::set<int> cgm_data;
+
+	bool IsInt(int type) const;
+	int MaxIndex(int type) const;
+
+	void Set(VarInfo info, int value);
+	int Get(int type, int number) const;
+	void SetSys(int value);
+	void SetStr(VarInfo info, std::string val);
+
+	bool Exec(class Cmd& cmd);
+
+	void Save(std::string& str);
+	void Load(const char* str);
+
+	void SaveSys(std::string& str);
+	void LoadSys(const char* str);
+};
+
+/* commands */
+#define STRHEAP_SIZE 10000
+enum Cmdtype {
+	CMD_NOP, CMD_FLAGS, CMD_JMP, CMD_TEXT, CMD_OTHER, CMD_SYSVAR,
+	CMD_TEXTEND,
+	CMD_SAVECMDGRP, CMD_SAVECMDGRP_START, CMD_SAVECMDGRP_ONCE, CMD_SAVECMD_ONCE, CMD_WAITFRAMEUPDATE,CMD_SAVEPOINT, CMD_ROLLBACKPOINT,
+	CMD_SAVEREQ, CMD_SAVE,
+	CMD_LOADREQ, CMD_LOAD,
+	CMD_MENUREQ,
+	CMD_BACKLOGREQ, CMD_BACKLOGREQ_FWD,
+	CMD_END};
+struct CmdSimplified { // Cmd 保存用
+	int type, cmd1, cmd2, cmd3, cmd4, argc;
+	char* args;
+	void Save(std::string& save);
+	void Load(const char* save, char*& args_buffer);
+	void copy(const CmdSimplified& from, char*& args_buffer);
+};
+class Cmd {
+public:
+	Cmdtype cmd_type;
+	int cmd1, cmd2, cmd3, cmd4;
+	int argc;
+	int pos, scn;
+	const char* rawdata;
+	char cmdstr[1024];
+	std::vector<VarInfo> args;
+
+private:
+	const Flags& flags;
+	bool errorflag;
+	int system_version;
+
+	int GetArgs(const char*& d);
+	int GetArgsSpecial(int normal_args,const char*& d);
+	void GetSelection(const char*& d);
+	int GetSwitch(const char*& d);
+	int GetSimpleSwitch(const char*& d);
+	int GetExpression(const char*& d, struct VarInfo* info = 0);
+	int GetExpressionCond(const char*& d);
+	int GetLeftToken(const char*& d, struct VarInfo& info);
+	int GetString(const char*& d);
+	int CopyString(const char* d);
+	int StrVar(int type, int number);
+	static char strtype[256];
+	static int StrType(const char* d) { return strtype[*(unsigned const char*)d];}
+public:
+	const char* Str(const VarInfo& info) const {
+		if (info.type != TYPE_STR && info.type != TYPE_VARSTR && info.type != TYPE_VARLOCSTR && info.type != TYPE_VARSYSSTR) return "";
+		int pt = info.value;
+		if (pt < 0 || pt >= STRHEAP_SIZE) return "";
+		return strheap + pt;
+	}
+	int AddStr(char* s) {
+		// 1-0a-0064 はこういうものが必要らしい
+		int start = strend;
+		while (*s) strheap[strend++] = *s++;
+		strheap[strend++] = 0;
+		return start;
+	}
+private:
+	char strheap[STRHEAP_SIZE];
+	int strend;
+	void SetError(void) { errorflag = true;}
+	void ResetString(void) {
+		strend = 0;
+	}
+public:
+	void GetCmd(Flags& f, const char*& d);
+	void SetSysvar(int n, int v);
+	void SetSysvar(int v) { SetSysvar(TYPE_SYS_SYS, v); }
+	void SetFlagvar(VarInfo info, int v);
+	void SetStrvar(VarInfo info, const std::string& s);
+	bool IsError() { return errorflag;}
+	void clear(void);
+	Cmd(const Flags& f, int _sys_ver) : flags(f), system_version(_sys_ver) { cmd_type = CMD_NOP; argc = 0; errorflag = false; cmdstr[0] = 0; strend = 0; pos = -1;}
+	void read(const CmdSimplified& cmd);
+	void write(CmdSimplified& cmd, char*& args_buffer) const;
+};
+
+enum SkipMode {SKIP_NO=0, SKIP_TEXT=1, SKIP_GRP_FAST=16, SKIP_GRP_NOEFFEC=32, SKIP_GRP_NODRAW=64, SKIPEND_TEXT=256, SKIPEND_KEY=512,
+	SKIP_IN_MENU=1024};
+
+#include"font/text.h"
+
+struct BacklogItem {
+	enum {SaveSelect = -2};
+	int scn, pos;
+	int koe;
+	std::string face;
+	struct TextStream text;
+	BacklogItem(void);
+	void Clear(void);
+	void AddTextPos(Cmd&);
+	void DeleteTextPos();
+	void SetSavepos(int pos);
+	BacklogItem& operator =(const BacklogItem&);
+};
+class Text {
+	class TextImpl* pimpl;
+public:
+	std::vector<BacklogItem> backlog;
+	BacklogItem backlog_item;
+	Text(Event::Container& _event, PicContainer& _parent, AyuSysConfig& config);
+	~Text();
+	void InitWindow(void);
+	void Exec(Cmd& cmd);
+	bool Wait(unsigned int current_time, Cmd& cmd);
+	void SetSkipMode(SkipMode mode);
+	void hide(void);
+	void show(void);
+	void show(int num);
+	void Save(std::string& str, bool rollback_save);
+	void Load(const char* str);
+	void DrawBacklog(BacklogItem& item, Cmd& cmd);
+};
+
+#include"../window/rect.h"
+
+class Grp {
+	class GrpImpl* pimpl;
+public:
+	Grp(Event::Container& _event, PicContainer& _parent, const Flags& f, std::set<int>& _cgm_data, class MuSys& mu, AyuSysConfig& config);
+	~Grp();
+	bool Wait(unsigned int current_time, Cmd& cmd);
+	void Exec(Cmd& cmd);
+	void SetSkipMode(SkipMode mode);
+	void InitSel(AyuSysConfig& config);
+	void Save(std::string& str);
+	void Load(const char* str);
+	void SaveSys(std::string& str);
+	void LoadSys(const char* str);
+};
+
+void dprintf(const char* fmt, ...); // debug 用
+void eprintf(const char* fmt, ...); // コマンド実行(XXXexec)追跡用
+#endif