yquake2remaster/src/client/input/keyboard.c

/*
 * Copyright (C) 1997-2001 Id Software, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 * USA.
 *
 * =======================================================================
 *
 * Upper layer of the keyboard implementation. This file processes all
 * keyboard events which are generated by the low level keyboard layer.
 *
 * =======================================================================
 */

#include "../header/client.h"

/*
 * key up events are sent even if in console mode
 */

#define		MAXCMDLINE	256

char	key_lines[32][MAXCMDLINE];
int		key_linepos;
int		shift_down=false;
int		anykeydown;

int		edit_line=0;
int		history_line=0;

int			key_waiting;
char *		keybindings[K_LAST];
qboolean	consolekeys[K_LAST]; /* if true, can't be rebound while in console */
qboolean	menubound[K_LAST]; /* if true, can't be rebound while in menu */
int			keyshift[K_LAST]; /* key to map to if shift held down in console */
int			key_repeats[K_LAST]; /* if > 1, it is autorepeating */
qboolean	keydown[K_LAST];

typedef struct {
	char	*name;
	int		keynum;
} keyname_t;

keyname_t keynames[] = {
	{"TAB", K_TAB},
	{"ENTER", K_ENTER},
	{"ESCAPE", K_ESCAPE},
	{"SPACE", K_SPACE},
	{"BACKSPACE", K_BACKSPACE},
	{"UPARROW", K_UPARROW},
	{"DOWNARROW", K_DOWNARROW},
	{"LEFTARROW", K_LEFTARROW},
	{"RIGHTARROW", K_RIGHTARROW},

	{"ALT", K_ALT},
	{"CTRL", K_CTRL},
	{"SHIFT", K_SHIFT},

	{"F1", K_F1},
	{"F2", K_F2},
	{"F3", K_F3},
	{"F4", K_F4},
	{"F5", K_F5},
	{"F6", K_F6},
	{"F7", K_F7},
	{"F8", K_F8},
	{"F9", K_F9},
	{"F10", K_F10},
	{"F11", K_F11},
	{"F12", K_F12},

	{"INS", K_INS},
	{"DEL", K_DEL},
	{"PGDN", K_PGDN},
	{"PGUP", K_PGUP},
	{"HOME", K_HOME},
	{"END", K_END},

	{"MOUSE1", K_MOUSE1},
	{"MOUSE2", K_MOUSE2},
	{"MOUSE3", K_MOUSE3},
	{"MOUSE4", K_MOUSE4},
	{"MOUSE5", K_MOUSE5},

	{"AUX1", K_AUX1},
	{"AUX2", K_AUX2},
	{"AUX3", K_AUX3},
	{"AUX4", K_AUX4},
	{"AUX5", K_AUX5},
	{"AUX6", K_AUX6},
	{"AUX7", K_AUX7},
	{"AUX8", K_AUX8},
	{"AUX9", K_AUX9},
	{"AUX10", K_AUX10},
	{"AUX11", K_AUX11},
	{"AUX12", K_AUX12},
	{"AUX13", K_AUX13},
	{"AUX14", K_AUX14},
	{"AUX15", K_AUX15},
	{"AUX16", K_AUX16},
	{"AUX17", K_AUX17},
	{"AUX18", K_AUX18},
	{"AUX19", K_AUX19},
	{"AUX20", K_AUX20},
	{"AUX21", K_AUX21},
	{"AUX22", K_AUX22},
	{"AUX23", K_AUX23},
	{"AUX24", K_AUX24},
	{"AUX25", K_AUX25},
	{"AUX26", K_AUX26},
	{"AUX27", K_AUX27},
	{"AUX28", K_AUX28},
	{"AUX29", K_AUX29},
	{"AUX30", K_AUX30},
	{"AUX31", K_AUX31},
	{"AUX32", K_AUX32},

	{"KP_HOME",			K_KP_HOME },
	{"KP_UPARROW",		K_KP_UPARROW },
	{"KP_PGUP",			K_KP_PGUP },
	{"KP_LEFTARROW",	K_KP_LEFTARROW },
	{"KP_5",			K_KP_5 },
	{"KP_RIGHTARROW",	K_KP_RIGHTARROW },
	{"KP_END",			K_KP_END },
	{"KP_DOWNARROW",	K_KP_DOWNARROW },
	{"KP_PGDN",			K_KP_PGDN },
	{"KP_ENTER",		K_KP_ENTER },
	{"KP_INS",			K_KP_INS },
	{"KP_DEL",			K_KP_DEL },
	{"KP_SLASH",		K_KP_SLASH },
	{"KP_MINUS",		K_KP_MINUS },
	{"KP_PLUS",			K_KP_PLUS },

	{"MWHEELUP", K_MWHEELUP },
	{"MWHEELDOWN", K_MWHEELDOWN },

	{"PAUSE", K_PAUSE},

	{"SEMICOLON", ';'}, /* because a raw semicolon seperates commands */

	{NULL,0}
};

void CompleteCommand (void) {
	char	*cmd, *s;

	s = key_lines[edit_line]+1;

	if (*s == '\\' || *s == '/')
		s++;

	cmd = Cmd_CompleteCommand (s);

	if (!cmd)
		cmd = Cvar_CompleteVariable (s);

	if (cmd) {
		key_lines[edit_line][1] = '/';
		strcpy (key_lines[edit_line]+2, cmd);
		key_linepos = (int)strlen(cmd)+2;
		key_lines[edit_line][key_linepos] = ' ';
		key_linepos++;
		key_lines[edit_line][key_linepos] = 0;
		return;
	}
}

/*
 * Interactive line editing and console scrollback
 */
void Key_Console (int key) {

	switch ( key ) {
		case K_KP_SLASH:
			key = '/';
			break;
		case K_KP_MINUS:
			key = '-';
			break;
		case K_KP_PLUS:
			key = '+';
			break;
		case K_KP_HOME:
			key = '7';
			break;
		case K_KP_UPARROW:
			key = '8';
			break;
		case K_KP_PGUP:
			key = '9';
			break;
		case K_KP_LEFTARROW:
			key = '4';
			break;
		case K_KP_5:
			key = '5';
			break;
		case K_KP_RIGHTARROW:
			key = '6';
			break;
		case K_KP_END:
			key = '1';
			break;
		case K_KP_DOWNARROW:
			key = '2';
			break;
		case K_KP_PGDN:
			key = '3';
			break;
		case K_KP_INS:
			key = '0';
			break;
		case K_KP_DEL:
			key = '.';
			break;
		default:
			break;
	}

	if ( key == 'l' ) {
		if ( keydown[K_CTRL] ) {
			Cbuf_AddText ("clear\n");
			return;
		}
	}

	if ( key == K_ENTER || key == K_KP_ENTER ) {
		/* slash text are commands, else chat */
		if (key_lines[edit_line][1] == '\\' || key_lines[edit_line][1] == '/')
			Cbuf_AddText (key_lines[edit_line]+2); /* skip the > */

		else
			Cbuf_AddText (key_lines[edit_line]+1); /* valid command */

		Cbuf_AddText ("\n");
		Com_Printf ("%s\n",key_lines[edit_line]);
		edit_line = (edit_line + 1) & 31;
		history_line = edit_line;
		key_lines[edit_line][0] = ']';
		key_linepos = 1;

		if (cls.state == ca_disconnected)
			SCR_UpdateScreen (); /* force an update, because the command may take some time */

		return;
	}

	if (key == K_TAB) {
		/* command completion */
		CompleteCommand ();
		return;
	}

	if ( key == K_LEFTARROW ) {
		if (key_linepos > 1)
			key_linepos--;

		return;
	}

	if (key == K_RIGHTARROW) {
		if (key_lines[edit_line][key_linepos])
			key_linepos++;

		return;
	}

	if ( ( key == K_BACKSPACE ) || ( ( key == 'h' ) && ( keydown[K_CTRL] ) ) ) {
		if (key_linepos > 1) {
			memmove (key_lines[edit_line] + key_linepos-1, key_lines[edit_line] + key_linepos, sizeof(key_lines[edit_line])-key_linepos);
			key_linepos--;
		}

		return;
	}

	if ( key == K_DEL ) {
		memmove (key_lines[edit_line] + key_linepos, key_lines[edit_line] + key_linepos + 1, sizeof(key_lines[edit_line])-key_linepos-1);
		return;
	}

	if ( ( key == K_UPARROW ) || ( key == K_KP_UPARROW ) ||
	        ( ( key == 'p' ) && keydown[K_CTRL] ) ) {
		do {
			history_line = (history_line - 1) & 31;
		} while (history_line != edit_line
		         && !key_lines[history_line][1]);

		if (history_line == edit_line)
			history_line = (edit_line+1)&31;

		strcpy(key_lines[edit_line], key_lines[history_line]);
		key_linepos = (int)strlen(key_lines[edit_line]);
		return;
	}

	if ( ( key == K_DOWNARROW ) || ( key == K_KP_DOWNARROW ) ||
	        ( ( key == 'n' ) && keydown[K_CTRL] ) ) {
		if (history_line == edit_line) return;

		do {
			history_line = (history_line + 1) & 31;
		} while (history_line != edit_line
		         && !key_lines[history_line][1]);

		if (history_line == edit_line) {
			key_lines[edit_line][0] = ']';
			key_linepos = 1;

		} else {
			strcpy(key_lines[edit_line], key_lines[history_line]);
			key_linepos = (int)strlen(key_lines[edit_line]);
		}

		return;
	}

	if (key == K_PGUP || key == K_KP_PGUP ) {
		con.display -= 2;
		return;
	}

	if (key == K_PGDN || key == K_KP_PGDN ) {
		con.display += 2;

		if (con.display > con.current)
			con.display = con.current;

		return;
	}

	if (key == K_HOME || key == K_KP_HOME ) {
		if (keydown[K_CTRL])
			con.display = con.current - con.totallines + 10;

		else
			key_linepos = 1;

		return;
	}

	if (key == K_END || key == K_KP_END ) {
		if (keydown[K_CTRL])
			con.display = con.current;

		else
			key_linepos = (int)strlen(key_lines[edit_line]);

		return;
	}

	if (key < 32 || key > 127)
		return; /* non printable character */

	if (key_linepos < MAXCMDLINE-1) {
		int		last;
		int		length;

		length = strlen(key_lines[edit_line]);

		if (length >= MAXCMDLINE-1)
			return;

		last = key_lines[edit_line][key_linepos];

		memmove (key_lines[edit_line] + key_linepos+1, key_lines[edit_line] + key_linepos, length - key_linepos);

		key_lines[edit_line][key_linepos] = key;
		key_linepos++;

		if (!last)
			key_lines[edit_line][key_linepos] = 0;
	}
}

qboolean	chat_team;
char		chat_buffer[MAXCMDLINE];
int			chat_bufferlen = 0;
int			chat_cursorpos = 0;

void Key_Message (int key) {
	char	last;

	if ( key == K_ENTER || key == K_KP_ENTER ) {
		if (chat_team)
			Cbuf_AddText ("say_team \"");

		else
			Cbuf_AddText ("say \"");

		Cbuf_AddText(chat_buffer);
		Cbuf_AddText("\"\n");

		cls.key_dest = key_game;
		chat_bufferlen = 0;
		chat_buffer[0] = 0;
		chat_cursorpos = 0;
		return;
	}

	if (key == K_ESCAPE) {
		cls.key_dest = key_game;
		chat_cursorpos = 0;
		chat_bufferlen = 0;
		chat_buffer[0] = 0;
		return;
	}

	if (key == K_BACKSPACE) {
		if (chat_cursorpos) {
			memmove (chat_buffer + chat_cursorpos - 1, chat_buffer + chat_cursorpos, chat_bufferlen - chat_cursorpos + 1);
			chat_cursorpos--;
			chat_bufferlen--;
		}

		return;
	}

	if (key == K_DEL) {
		if (chat_bufferlen && chat_cursorpos != chat_bufferlen) {
			memmove (chat_buffer + chat_cursorpos, chat_buffer + chat_cursorpos + 1, chat_bufferlen - chat_cursorpos + 1);
			chat_bufferlen--;
		}

		return;
	}

	if (key == K_LEFTARROW) {
		if (chat_cursorpos > 0)
			chat_cursorpos--;

		return;
	}

	if (key == K_HOME) {
		chat_cursorpos = 0;
		return;
	}

	if (key == K_END) {
		chat_cursorpos = chat_bufferlen;
		return;
	}

	if (key == K_RIGHTARROW) {
		if (chat_buffer[chat_cursorpos])
			chat_cursorpos++;

		return;
	}

	if (key < 32 || key > 127)
		return; /* non printable charcter */

	if (chat_bufferlen == sizeof(chat_buffer)-1)
		return; /* all full, this should never happen on modern systems */

	memmove (chat_buffer + chat_cursorpos + 1, chat_buffer + chat_cursorpos, chat_bufferlen - chat_cursorpos + 1);

	last = chat_buffer[chat_cursorpos];

	chat_buffer[chat_cursorpos] = key;

	chat_bufferlen++;
	chat_cursorpos++;

	if (!last) {
		chat_buffer[chat_cursorpos] = 0;
	}
}

/*
 * Returns a key number to be used to index keybindings[] by looking at
 * the given string.  Single ascii characters return themselves, while
 * the K_* names are matched up.
 */
int Key_StringToKeynum (char *str) {
	keyname_t	*kn;

	if (!str || !str[0])
		return -1;

	if (!str[1])
		return str[0];

	for (kn=keynames ; kn->name ; kn++) {
		if (!Q_stricmp(str,kn->name))
			return kn->keynum;
	}

	return -1;
}

/*
 * Returns a string (either a single ascii char, or a K_* name) for the
 * given keynum.
 */
char *Key_KeynumToString (int keynum) {
	keyname_t	*kn;
	static	char	tinystr[2] = {0};

	if (keynum == -1)
		return "<KEY NOT FOUND>";

	if (keynum > 32 && keynum < 127) {
		/* printable ascii */
		tinystr[0] = keynum;
		return tinystr;
	}

	for (kn=keynames ; kn->name ; kn++)
		if (keynum == kn->keynum)
			return kn->name;

	return "<UNKNOWN KEYNUM>";
}

void Key_SetBinding (int keynum, char *binding) {
	char	*new;
	int		l;

	if (keynum == -1)
		return;

	/* free old bindings */
	if (keybindings[keynum]) {
		Z_Free (keybindings[keynum]);
		keybindings[keynum] = NULL;
	}

	/* allocate memory for new binding */
	l = strlen (binding);
	new = Z_Malloc (l+1);
	strcpy (new, binding);
	new[l] = 0;
	keybindings[keynum] = new;
}

void Key_Unbind_f (void) {
	int		b;

	if (Cmd_Argc() != 2) {
		Com_Printf ("unbind <key> : remove commands from a key\n");
		return;
	}

	b = Key_StringToKeynum (Cmd_Argv(1));

	if (b==-1) {
		Com_Printf ("\"%s\" isn't a valid key\n", Cmd_Argv(1));
		return;
	}

	Key_SetBinding (b, "");
}

void Key_Unbindall_f (void) {
	int		i;

	for (i=0 ; i<K_LAST ; i++)
		if (keybindings[i])
			Key_SetBinding (i, "");
}

void Key_Bind_f (void) {
	int			i, c, b;
	char		cmd[1024];

	c = Cmd_Argc();

	if (c < 2) {
		Com_Printf ("bind <key> [command] : attach a command to a key\n");
		return;
	}

	b = Key_StringToKeynum (Cmd_Argv(1));

	if (b==-1) {
		Com_Printf ("\"%s\" isn't a valid key\n", Cmd_Argv(1));
		return;
	}

	if (c == 2) {
		if (keybindings[b])
			Com_Printf ("\"%s\" = \"%s\"\n", Cmd_Argv(1), keybindings[b] );

		else
			Com_Printf ("\"%s\" is not bound\n", Cmd_Argv(1) );

		return;
	}

	/* copy the rest of the command line */
	cmd[0] = 0;	 /* start out with a null string */

	for (i=2 ; i< c ; i++) {
		strcat (cmd, Cmd_Argv(i));

		if (i != (c-1))
			strcat (cmd, " ");
	}

	Key_SetBinding (b, cmd);
}

/*
 * Writes lines containing "bind key value"
 */
void Key_WriteBindings (FILE *f) {
	int		i;

	for (i=0 ; i<K_LAST ; i++)
		if (keybindings[i] && keybindings[i][0])
			fprintf (f, "bind %s \"%s\"\n", Key_KeynumToString(i), keybindings[i]);
}

void Key_Bindlist_f (void) {
	int		i;

	for (i=0 ; i<K_LAST ; i++)
		if (keybindings[i] && keybindings[i][0])
			Com_Printf ("%s \"%s\"\n", Key_KeynumToString(i), keybindings[i]);
}

void Key_Init (void) {
	int		i;

	for (i=0 ; i<32 ; i++) {
		key_lines[i][0] = ']';
		key_lines[i][1] = 0;
	}

	key_linepos = 1;

	/* init 128 bit ascii characters in console mode */
	for (i=32 ; i<128 ; i++)
		consolekeys[i] = true;

	consolekeys[K_ENTER] = true;
	consolekeys[K_KP_ENTER] = true;
	consolekeys[K_TAB] = true;
	consolekeys[K_LEFTARROW] = true;
	consolekeys[K_KP_LEFTARROW] = true;
	consolekeys[K_RIGHTARROW] = true;
	consolekeys[K_KP_RIGHTARROW] = true;
	consolekeys[K_UPARROW] = true;
	consolekeys[K_KP_UPARROW] = true;
	consolekeys[K_DOWNARROW] = true;
	consolekeys[K_KP_DOWNARROW] = true;
	consolekeys[K_BACKSPACE] = true;
	consolekeys[K_HOME] = true;
	consolekeys[K_KP_HOME] = true;
	consolekeys[K_END] = true;
	consolekeys[K_KP_END] = true;
	consolekeys[K_PGUP] = true;
	consolekeys[K_KP_PGUP] = true;
	consolekeys[K_PGDN] = true;
	consolekeys[K_KP_PGDN] = true;
	consolekeys[K_SHIFT] = true;
	consolekeys[K_INS] = true;
	consolekeys[K_KP_INS] = true;
	consolekeys[K_KP_DEL] = true;
	consolekeys[K_KP_SLASH] = true;
	consolekeys[K_KP_PLUS] = true;
	consolekeys[K_KP_MINUS] = true;
	consolekeys[K_KP_5] = true;

	consolekeys['`'] = false;
	consolekeys['~'] = false;
	consolekeys['^'] = false;

	for (i=0 ; i<K_LAST ; i++)
		keyshift[i] = i;

	for (i='a' ; i<='z' ; i++)
		keyshift[i] = i - 'a' + 'A';

	keyshift['1'] = '!';
	keyshift['2'] = '@';
	keyshift['3'] = '#';
	keyshift['4'] = '$';
	keyshift['5'] = '%';
	keyshift['6'] = '^';
	keyshift['7'] = '&';
	keyshift['8'] = '*';
	keyshift['9'] = '(';
	keyshift['0'] = ')';
	keyshift['-'] = '_';
	keyshift['='] = '+';
	keyshift[','] = '<';
	keyshift['.'] = '>';
	keyshift['/'] = '?';
	keyshift[';'] = ':';
	keyshift['\''] = '"';
	keyshift['['] = '{';
	keyshift[']'] = '}';
	keyshift['`'] = '~';
	keyshift['\\'] = '|';

	menubound[K_ESCAPE] = true;

	for (i=0 ; i<12 ; i++)
		menubound[K_F1+i] = true;

	/* register our functions */
	Cmd_AddCommand ("bind",Key_Bind_f);
	Cmd_AddCommand ("unbind",Key_Unbind_f);
	Cmd_AddCommand ("unbindall",Key_Unbindall_f);
	Cmd_AddCommand ("bindlist",Key_Bindlist_f);
}

/*
 * Called by the system between frames for both key up and key down events
 * Should NOT be called during an interrupt!
 */
void Key_Event (int key, qboolean down, unsigned time) {
	char	*kb;
	char	cmd[1024];

	/* hack for modal presses */
	if (key_waiting == -1) {
		if (down)
			key_waiting = key;

		return;
	}

	/* update auto-repeat status */
	if (down) {
		key_repeats[key]++;

		if (cls.key_dest != key_console && key != K_BACKSPACE && key != K_DEL && key != K_LEFTARROW && key != K_RIGHTARROW
		        && key != K_PAUSE
		        && key != K_PGUP
		        && key != K_KP_PGUP
		        && key != K_PGDN
		        && key != K_KP_PGDN
		        && key_repeats[key] > 1)
			return; /* ignore most autorepeats */

		if (key >= 200 && !keybindings[key])
			Com_Printf ("%s is unbound, hit F4 to set.\n", Key_KeynumToString (key) );

	} else {
		key_repeats[key] = 0;
	}

	if (key == K_SHIFT)
		shift_down = down;

	/* console key is hardcoded, so the user can never unbind it */
	if (key == '^' || key == '~' || key == '`') {
		if (!down)
			return;

		Con_ToggleConsole_f ();
		return;
	}

	/* any key during the attract mode will bring up the menu */
	if (cl.attractloop && cls.key_dest != key_menu &&
	        !(key >= K_F1 && key <= K_F12))
		key = K_ESCAPE;

	/* menu key is hardcoded, so the user can never unbind it */
	if (key == K_ESCAPE) {
		if (!down)
			return;

		if (cl.frame.playerstate.stats[STAT_LAYOUTS] && cls.key_dest == key_game) {
			/* put away help computer / inventory */
			Cbuf_AddText ("cmd putaway\n");
			return;
		}

		switch (cls.key_dest) {
			case key_message:
				Key_Message (key);
				break;
			case key_menu:
				M_Keydown (key);
				break;
			case key_game:
			case key_console:
				M_Menu_Main_f ();
				break;
			default:
				Com_Error (ERR_FATAL, "Bad cls.key_dest");
		}

		return;
	}

	/* track if any key is down for BUTTON_ANY */
	keydown[key] = down;

	if (down) {
		if (key_repeats[key] == 1)
			anykeydown++;

	} else {
		anykeydown--;

		if (anykeydown < 0)
			anykeydown = 0;
	}

	/* key up events only generate commands if the game key binding is
	   a button command (leading + sign). These will occur even in console mode,
	   to keep the character from continuing an action started before a console
	   switch. Button commands include the kenum as a parameter, so multiple
	   downs can be matched with ups */
	if (!down) {
		kb = keybindings[key];

		if (kb && kb[0] == '+') {
			Com_sprintf (cmd, sizeof(cmd), "-%s %i %i\n", kb+1, key, time);
			Cbuf_AddText (cmd);
		}

		if (keyshift[key] != key) {
			kb = keybindings[keyshift[key]];

			if (kb && kb[0] == '+') {
				Com_sprintf (cmd, sizeof(cmd), "-%s %i %i\n", kb+1, key, time);
				Cbuf_AddText (cmd);
			}
		}

		return;
	}

	/* if not a consolekey, send to the interpreter no matter what mode is */
	if ( (cls.key_dest == key_menu && menubound[key])
	        || (cls.key_dest == key_console && !consolekeys[key])
	        || (cls.key_dest == key_game && ( cls.state == ca_active || !consolekeys[key] ) ) ) {
		kb = keybindings[key];

		if (kb) {
			if (kb[0] == '+') {
				/* button commands add keynum and time as a parm */
				Com_sprintf (cmd, sizeof(cmd), "%s %i %i\n", kb, key, time);
				Cbuf_AddText (cmd);

			} else {
				Cbuf_AddText (kb);
				Cbuf_AddText ("\n");
			}
		}

		return;
	}

	if (!down)
		return; /* other systems only care about key down events */

	if (shift_down)
		key = keyshift[key];

	switch (cls.key_dest) {
		case key_message:
			Key_Message (key);
			break;
		case key_menu:
			M_Keydown (key);
			break;

		case key_game:
		case key_console:
			Key_Console (key);
			break;
		default:
			Com_Error (ERR_FATAL, "Bad cls.key_dest");
	}
}

void Key_ClearStates (void) {
	int		i;

	anykeydown = false;

	for (i=0 ; i<K_LAST ; i++) {
		if ( keydown[i] || key_repeats[i] )
			Key_Event( i, false, 0 );

		keydown[i] = 0;
		key_repeats[i] = 0;
	}
}

int Key_GetKey (void) {
	key_waiting = -1;

	while (key_waiting == -1)
		Sys_SendKeyEvents ();

	return key_waiting;
}