shithub: wl3d

ref: 3b2f4d3df58368ce53243dd992612b9fcb7f0d1a
dir: /in.c/

#define	MaxPlayers	4
#define	NumCodes	128

// 	Stuff for the mouse
#define	MReset		0
#define	MButtons	3
#define	MDelta		11

#define	MouseInt	0x33
#define	Mouse(x)	_AX = x,geninterrupt(MouseInt)

typedef	enum		{
						demo_Off,demo_Record,demo_Playback,demo_PlayDone
					} Demo;
typedef	enum		{
						ctrl_Keyboard,
							ctrl_Keyboard1 = ctrl_Keyboard,ctrl_Keyboard2,
						ctrl_Mouse
					} ControlType;
typedef	enum		{
						motion_Left = -1,motion_Up = -1,
						motion_None = 0,
						motion_Right = 1,motion_Down = 1
					} Motion;
typedef	enum		{
						dir_North,dir_NorthEast,
						dir_East,dir_SouthEast,
						dir_South,dir_SouthWest,
						dir_West,dir_NorthWest,
						dir_None
					} Direction;
typedef	struct		{
						int		button0,button1,button2,button3;
						s16int			x,y;
						Motion		xaxis,yaxis;
						Direction	dir;
					} CursorInfo;
typedef	CursorInfo	ControlInfo;
typedef	struct		{
						u8int	button0,button1,
									upleft,		up,		upright,
									left,				right,
									downleft,	down,	downright;
					} KeyboardDef;

// Function prototypes
#define	IN_KeyDown(code)	(Keyboard[(code)])
#define	IN_ClearKey(code)	{Keyboard[code] = false;\
							if (code == LastScan) LastScan = sc_None;}
								
int		Keyboard[NumCodes];
KeyboardDef	KbdDefs = {0x1d,0x38,0x47,0x48,0x49,0x4b,0x4d,0x4f,0x50,0x51};
ControlType	Controls[MaxPlayers];
Demo		DemoMode = demo_Off;
u8int _seg	*DemoBuffer;
u16int		DemoOffset,DemoSize;

static	Direction	DirTable[] =		// Quick lookup for total direction
{
						dir_NorthWest,	dir_North,	dir_NorthEast,
						dir_West,		dir_None,	dir_East,
						dir_SouthWest,	dir_South,	dir_SouthEast
					};

void
IN_ReadControl(s16int player,ControlInfo *info)
{
			int		realdelta;
			u8int		dbyte;
			u16int		buttons;
			s16int			dx,dy;
			Motion		mx,my;
			ControlType	type;
register	KeyboardDef	*def;

	dx = dy = 0;
	mx = my = motion_None;
	buttons = 0;

	if (DemoMode == demo_Playback)
	{
		dbyte = DemoBuffer[DemoOffset + 1];
		my = (dbyte & 3) - 1;
		mx = ((dbyte >> 2) & 3) - 1;
		buttons = (dbyte >> 4) & 3;

		if (!(--DemoBuffer[DemoOffset]))
		{
			DemoOffset += 2;
			if (DemoOffset >= DemoSize)
				DemoMode = demo_PlayDone;
		}

		realdelta = false;
	}
	else if (DemoMode == demo_PlayDone)
		Quit("Demo playback exceeded");
	else
	{
		switch (type = Controls[player])
		{
		case ctrl_Keyboard:
			def = &KbdDefs;

			if (Keyboard[def->upleft])
				mx = motion_Left,my = motion_Up;
			else if (Keyboard[def->upright])
				mx = motion_Right,my = motion_Up;
			else if (Keyboard[def->downleft])
				mx = motion_Left,my = motion_Down;
			else if (Keyboard[def->downright])
				mx = motion_Right,my = motion_Down;

			if (Keyboard[def->up])
				my = motion_Up;
			else if (Keyboard[def->down])
				my = motion_Down;

			if (Keyboard[def->left])
				mx = motion_Left;
			else if (Keyboard[def->right])
				mx = motion_Right;

			if (Keyboard[def->button0])
				buttons += 1 << 0;
			if (Keyboard[def->button1])
				buttons += 1 << 1;
			realdelta = false;
			break;
		case ctrl_Mouse:
			INL_GetMouseDelta(&dx,&dy);
			buttons = INL_GetMouseButtons();
			realdelta = true;
			break;
		}
	}

	if (realdelta)
	{
		mx = (dx < 0)? motion_Left : ((dx > 0)? motion_Right : motion_None);
		my = (dy < 0)? motion_Up : ((dy > 0)? motion_Down : motion_None);
	}
	else
	{
		dx = mx * 127;
		dy = my * 127;
	}

	info->x = dx;
	info->xaxis = mx;
	info->y = dy;
	info->yaxis = my;
	info->button0 = buttons & (1 << 0);
	info->button1 = buttons & (1 << 1);
	info->button2 = buttons & (1 << 2);
	info->button3 = buttons & (1 << 3);
	info->dir = DirTable[((my + 1) * 3) + (mx + 1)];

	if (DemoMode == demo_Record)
	{
		// Pack the control info into a byte
		dbyte = (buttons << 4) | ((mx + 1) << 2) | (my + 1);

		if
		(
			(DemoBuffer[DemoOffset + 1] == dbyte)
		&&	(DemoBuffer[DemoOffset] < 255)
		)
			(DemoBuffer[DemoOffset])++;
		else
		{
			if (DemoOffset || DemoBuffer[DemoOffset])
				DemoOffset += 2;

			if (DemoOffset >= DemoSize)
				Quit("Demo buffer overflow");

			DemoBuffer[DemoOffset] = 1;
			DemoBuffer[DemoOffset + 1] = dbyte;
		}
	}
}