cl_console.c

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code 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.

Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
// console.c

#include "client.h"


int g_console_field_width = 78;


#define	NUM_CON_TIMES 4

#define		CON_TEXTSIZE	32768
typedef struct {
	qboolean	initialized;

	short	text[CON_TEXTSIZE];
	int		current;		// line where next message will be printed
	int		x;				// offset in current line for next print
	int		display;		// bottom of console displays this line

	int 	linewidth;		// characters across screen
	int		totallines;		// total lines in console scrollback

	float	xadjust;		// for wide aspect screens

	float	displayFrac;	// aproaches finalFrac at scr_conspeed
	float	finalFrac;		// 0.0 to 1.0 lines of console to display

	int		vislines;		// in scanlines

	int		times[NUM_CON_TIMES];	// cls.realtime time the line was generated
								// for transparent notify lines
	vec4_t	color;
} console_t;

extern	console_t	con;

console_t	con;

cvar_t		*con_conspeed;
cvar_t		*con_notifytime;

#define	DEFAULT_CONSOLE_WIDTH	78

vec4_t	console_color = {1.0, 1.0, 1.0, 1.0};


/*
================
Con_ToggleConsole_f
================
*/
void Con_ToggleConsole_f (void) {
	// closing a full screen console restarts the demo loop
	if ( cls.state == CA_DISCONNECTED && cls.keyCatchers == KEYCATCH_CONSOLE ) {
		CL_StartDemoLoop();
		return;
	}

	Field_Clear( &g_consoleField );
	g_consoleField.widthInChars = g_console_field_width;

	Con_ClearNotify ();
	cls.keyCatchers ^= KEYCATCH_CONSOLE;
}

/*
================
Con_MessageMode_f
================
*/
void Con_MessageMode_f (void) {
	chat_playerNum = -1;
	chat_team = qfalse;
	Field_Clear( &chatField );
	chatField.widthInChars = 30;

	cls.keyCatchers ^= KEYCATCH_MESSAGE;
}

/*
================
Con_MessageMode2_f
================
*/
void Con_MessageMode2_f (void) {
	chat_playerNum = -1;
	chat_team = qtrue;
	Field_Clear( &chatField );
	chatField.widthInChars = 25;
	cls.keyCatchers ^= KEYCATCH_MESSAGE;
}

/*
================
Con_MessageMode3_f
================
*/
void Con_MessageMode3_f (void) {
	chat_playerNum = VM_Call( cgvm, CG_CROSSHAIR_PLAYER );
	if ( chat_playerNum < 0 || chat_playerNum >= MAX_CLIENTS ) {
		chat_playerNum = -1;
		return;
	}
	chat_team = qfalse;
	Field_Clear( &chatField );
	chatField.widthInChars = 30;
	cls.keyCatchers ^= KEYCATCH_MESSAGE;
}

/*
================
Con_MessageMode4_f
================
*/
void Con_MessageMode4_f (void) {
	chat_playerNum = VM_Call( cgvm, CG_LAST_ATTACKER );
	if ( chat_playerNum < 0 || chat_playerNum >= MAX_CLIENTS ) {
		chat_playerNum = -1;
		return;
	}
	chat_team = qfalse;
	Field_Clear( &chatField );
	chatField.widthInChars = 30;
	cls.keyCatchers ^= KEYCATCH_MESSAGE;
}

/*
================
Con_Clear_f
================
*/
void Con_Clear_f (void) {
	int		i;

	for ( i = 0 ; i < CON_TEXTSIZE ; i++ ) {
		con.text[i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';
	}

	Con_Bottom();		// go to end
}

						
/*
================
Con_Dump_f

Save the console contents out to a file
================
*/
void Con_Dump_f (void)
{
	int		l, x, i;
	short	*line;
	fileHandle_t	f;
	char	buffer[1024];

	if (Cmd_Argc() != 2)
	{
		Com_Printf ("usage: condump <filename>\n");
		return;
	}

	Com_Printf ("Dumped console text to %s.\n", Cmd_Argv(1) );

	f = FS_FOpenFileWrite( Cmd_Argv( 1 ) );
	if (!f)
	{
		Com_Printf ("ERROR: couldn't open.\n");
		return;
	}

	// skip empty lines
	for (l = con.current - con.totallines + 1 ; l <= con.current ; l++)
	{
		line = con.text + (l%con.totallines)*con.linewidth;
		for (x=0 ; x<con.linewidth ; x++)
			if ((line[x] & 0xff) != ' ')
				break;
		if (x != con.linewidth)
			break;
	}

	// write the remaining lines
	buffer[con.linewidth] = 0;
	for ( ; l <= con.current ; l++)
	{
		line = con.text + (l%con.totallines)*con.linewidth;
		for(i=0; i<con.linewidth; i++)
			buffer[i] = line[i] & 0xff;
		for (x=con.linewidth-1 ; x>=0 ; x--)
		{
			if (buffer[x] == ' ')
				buffer[x] = 0;
			else
				break;
		}
		strcat( buffer, "\n" );
		FS_Write(buffer, strlen(buffer), f);
	}

	FS_FCloseFile( f );
}

						
/*
================
Con_ClearNotify
================
*/
void Con_ClearNotify( void ) {
	int		i;
	
	for ( i = 0 ; i < NUM_CON_TIMES ; i++ ) {
		con.times[i] = 0;
	}
}

						

/*
================
Con_CheckResize

If the line width has changed, reformat the buffer.
================
*/
void Con_CheckResize (void)
{
	int		i, j, width, oldwidth, oldtotallines, numlines, numchars;
	MAC_STATIC short	tbuf[CON_TEXTSIZE];

	width = (SCREEN_WIDTH / SMALLCHAR_WIDTH) - 2;

	if (width == con.linewidth)
		return;

	if (width < 1)			// video hasn't been initialized yet
	{
		width = DEFAULT_CONSOLE_WIDTH;
		con.linewidth = width;
		con.totallines = CON_TEXTSIZE / con.linewidth;
		for(i=0; i<CON_TEXTSIZE; i++)

			con.text[i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';
	}
	else
	{
		oldwidth = con.linewidth;
		con.linewidth = width;
		oldtotallines = con.totallines;
		con.totallines = CON_TEXTSIZE / con.linewidth;
		numlines = oldtotallines;

		if (con.totallines < numlines)
			numlines = con.totallines;

		numchars = oldwidth;
	
		if (con.linewidth < numchars)
			numchars = con.linewidth;

		Com_Memcpy (tbuf, con.text, CON_TEXTSIZE * sizeof(short));
		for(i=0; i<CON_TEXTSIZE; i++)

			con.text[i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';


		for (i=0 ; i<numlines ; i++)
		{
			for (j=0 ; j<numchars ; j++)
			{
				con.text[(con.totallines - 1 - i) * con.linewidth + j] =
						tbuf[((con.current - i + oldtotallines) %
							  oldtotallines) * oldwidth + j];
			}
		}

		Con_ClearNotify ();
	}

	con.current = con.totallines - 1;
	con.display = con.current;
}


/*
================
Con_Init
================
*/
void Con_Init (void) {
	int		i;

	con_notifytime = Cvar_Get ("con_notifytime", "3", 0);
	con_conspeed = Cvar_Get ("scr_conspeed", "3", 0);

	Field_Clear( &g_consoleField );
	g_consoleField.widthInChars = g_console_field_width;
	for ( i = 0 ; i < COMMAND_HISTORY ; i++ ) {
		Field_Clear( &historyEditLines[i] );
		historyEditLines[i].widthInChars = g_console_field_width;
	}

	Cmd_AddCommand ("toggleconsole", Con_ToggleConsole_f);
	Cmd_AddCommand ("messagemode", Con_MessageMode_f);
	Cmd_AddCommand ("messagemode2", Con_MessageMode2_f);
	Cmd_AddCommand ("messagemode3", Con_MessageMode3_f);
	Cmd_AddCommand ("messagemode4", Con_MessageMode4_f);
	Cmd_AddCommand ("clear", Con_Clear_f);
	Cmd_AddCommand ("condump", Con_Dump_f);
}


/*
===============
Con_Linefeed
===============
*/
void Con_Linefeed (qboolean skipnotify)
{
	int		i;

	// mark time for transparent overlay
	if (con.current >= 0)
	{
    if (skipnotify)
		  con.times[con.current % NUM_CON_TIMES] = 0;
    else
		  con.times[con.current % NUM_CON_TIMES] = cls.realtime;
	}

	con.x = 0;
	if (con.display == con.current)
		con.display++;
	con.current++;
	for(i=0; i<con.linewidth; i++)
		con.text[(con.current%con.totallines)*con.linewidth+i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';
}

/*
================
CL_ConsolePrint

Handles cursor positioning, line wrapping, etc
All console printing must go through this in order to be logged to disk
If no console is visible, the text will appear at the top of the game window
================
*/
void CL_ConsolePrint( char *txt ) {
	int		y;
	int		c, l;
	int		color;
	qboolean skipnotify = qfalse;		// NERVE - SMF
	int prev;							// NERVE - SMF

	// TTimo - prefix for text that shows up in console but not in notify
	// backported from RTCW
	if ( !Q_strncmp( txt, "[skipnotify]", 12 ) ) {
		skipnotify = qtrue;
		txt += 12;
	}
	
	// for some demos we don't want to ever show anything on the console
	if ( cl_noprint && cl_noprint->integer ) {
		return;
	}
	
	if (!con.initialized) {
		con.color[0] = 
		con.color[1] = 
		con.color[2] =
		con.color[3] = 1.0f;
		con.linewidth = -1;