// October 27, 2006
#include <windows.h>

/* originally defined in wincon.h */
#define FG_BLUE			1
#define FG_GREEN		2
#define FG_RED			4
#define FG_INTENSITY	8
#define BG_BLUE			16
#define BG_GREEN		32
#define BG_RED			64
#define BG_INTENSITY	128
#define BG_WHITE	BG_RED | BG_GREEN | BG_BLUE
#define FG_WHITE	FG_RED | FG_GREEN | FG_BLUE

/* 1.游標前往指定的座標 */
void gotoxy(int x, int y){
	COORD point;point.X = x;point.Y = y;
	SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),point);
}

/* 2.設定游標的顯示比例 */
// _bVisible：TRUE顯示游標；FALSE隱藏游標
// CCI.dwSize：游標的大小(佔字元的百分之幾，一般是25%。)

void SetCursorVisible(BOOL _bVisible,DWORD _dwSize){
	CONSOLE_CURSOR_INFO CCI;
	CCI.bVisible = _bVisible;
	CCI.dwSize = _dwSize;
	SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE),&CCI);
}

/* 3.取得目前座標值 getxy(&cx,&cy);*/
void getxy(int *x,int *y){
	CONSOLE_SCREEN_BUFFER_INFO csbi;
	GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
	*x = csbi.dwCursorPosition.X;
	*y = csbi.dwCursorPosition.Y;
}

int whereX(){
	int x,y;
	getxy(&x,&y);
	return x;
}

int whereY(){
	int x,y;
	getxy(&x,&y);
	return y;
}

/* 4.清除螢幕 Clear Screen */
// 轉載至Win32 Console Application Tools
void clrscr(){
	COORD coordScreen = {0,0};
	DWORD cCharsWritten;
	CONSOLE_SCREEN_BUFFER_INFO csbi;
	DWORD dwConSize;
	HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
	GetConsoleScreenBufferInfo(hConsole, &csbi);
	dwConSize = csbi.dwSize.X * csbi.dwSize.Y;
	FillConsoleOutputCharacter(hConsole, TEXT(' '),
			dwConSize,
			coordScreen,
			&cCharsWritten);
	GetConsoleScreenBufferInfo(hConsole, &csbi);
	FillConsoleOutputAttribute(hConsole, csbi.wAttributes,
			dwConSize,
			coordScreen,
			&cCharsWritten);
	SetConsoleCursorPosition(hConsole, coordScreen);
}

/* 5.設定文字顏色與背景顏色textcolor */
void setrgb(int color){
	WORD attr;
	switch (color){
	case 0:		// White on Black
		attr=(FG_INTENSITY|FG_WHITE);
		break;
	case 1:		// Red on Black
		attr=(FG_INTENSITY|FG_RED);
		break;
	case 2:		// Green on Black
		attr=(FG_INTENSITY|FG_GREEN);
		break;
	case 3:		// Yellow on Black
		attr=(FG_INTENSITY|FG_RED|FG_GREEN);
		break;
	case 4:		// Blue on Black
		attr=(FG_INTENSITY|FG_BLUE);
		break;
	case 5:		// Magenta on Black
		attr=(FG_INTENSITY|FG_RED|FG_BLUE);
		break;
	case 6:		// Cyan on Black
		attr=(FG_INTENSITY|FG_GREEN|FG_BLUE);
		break;
	case 7:		// Black on Gray
		attr=(BG_INTENSITY|FG_INTENSITY);
		break;
	case 8:		// Black on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE );
		break;
	case 9:		// Red on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE|FG_RED);
		break;
	case 10:	// Green on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE|FG_GREEN);
		break;
	case 11:	// Yellow on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE|FG_RED|FG_GREEN);
		break;
	case 12:	// Blue on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE|FG_BLUE);
		break;
	case 13:	// Magenta on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE|FG_RED|FG_BLUE);
		break;
	case 14:	// Cyan on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE|FG_GREEN|FG_BLUE);
		break;
	case 15:	// White on White
		attr=(BG_INTENSITY|FG_INTENSITY|BG_WHITE|FG_WHITE);
		break;
	default:	// White on Black
		attr=(FG_INTENSITY|FG_WHITE);
		break;
	}
	SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),attr);
}

void setTextAttr(int attr){
	if(attr>=0 && attr<256)
		SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),attr);
}

/* 6.設定console視窗大小 */
void SetScrnSize(int W, int H){
	SMALL_RECT SR;
	SR.Top = 0;
	SR.Left = 0;
	SR.Bottom = H-1;
	SR.Right = W-1;
	SetConsoleWindowInfo(GetStdHandle(STD_OUTPUT_HANDLE),TRUE, &SR);
	COORD Sz;
	Sz.X = W;
	Sz.Y = H;
	SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE),Sz);
}

/* 7.讓Console Window成全螢幕 */
void togglefullscreen(){
	keybd_event(VK_MENU,0x38,0,0);
	keybd_event(VK_RETURN,0x1c,0,0);
	keybd_event(VK_RETURN,0x1c,KEYEVENTF_KEYUP,0);
	keybd_event(VK_MENU,0x38,KEYEVENTF_KEYUP,0);
}

/* 8.清除 Clear to End of Line */
void clreol(){
	COORD coordScreen = {whereX(),whereY()};
	DWORD cCharsWritten;
	CONSOLE_SCREEN_BUFFER_INFO csbi;
	DWORD dwConSize;
	HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
	GetConsoleScreenBufferInfo(hConsole, &csbi);
	dwConSize = csbi.dwSize.X-whereX();
	FillConsoleOutputCharacter(hConsole, TEXT(' '),
			dwConSize, coordScreen, &cCharsWritten);
	GetConsoleScreenBufferInfo(hConsole, &csbi);
	FillConsoleOutputAttribute(hConsole, csbi.wAttributes,
			dwConSize, coordScreen, &cCharsWritten);
	SetConsoleCursorPosition(hConsole, coordScreen);
}