ref: a2c587e7d7a8b72a7ef9afcd119d8cfb20076b54
dir: /console.c/
#include "quakedef.h"
static int con_linewidth;
static float con_cursorspeed = 4;
#define CON_TEXTSIZE 16384
#define MAXPRINTMSG 4096
bool con_forcedup; // because no entities to refresh
int con_totallines; // total lines in console scrollback
int con_backscroll; // lines up from bottom to display
static int con_current; // where next message will be printed
static int con_x; // offset in current line for next print
static char *con_text;
static cvar_t con_notifytime = {"con_notifytime","3"}; //seconds
#define NUM_CON_TIMES 4
static float con_times[NUM_CON_TIMES]; // realtime time the line was generated
// for transparent notify lines
static int con_vislines;
#define MAXCMDLINE 256
extern char key_lines[32][MAXCMDLINE];
extern int edit_line;
extern int key_linepos;
bool con_initialized;
int con_notifylines; // scan lines to clear for notify lines
extern void M_Menu_Main_f (void);
void
Con_ToggleConsole_f(void)
{
if(key_dest == key_console){
if(cls.state == ca_connected){
key_dest = key_game;
key_lines[edit_line][1] = 0; // clear any typing
key_linepos = 1;
IN_Grabm(1);
}else
M_Menu_Main_f();
}else{
key_dest = key_console;
IN_Grabm(0);
}
SCR_EndLoadingPlaque();
memset(con_times, 0, sizeof con_times);
}
void
Con_Clear_f(void)
{
if(con_text)
memset(con_text, ' ', CON_TEXTSIZE);
}
/*
================
Con_ClearNotify
================
*/
void Con_ClearNotify (void)
{
int i;
for (i=0 ; i<NUM_CON_TIMES ; i++)
con_times[i] = 0;
}
/*
================
Con_MessageMode_f
================
*/
extern bool team_message;
static void
Con_MessageMode_f(void)
{
key_dest = key_message;
team_message = false;
}
/*
================
Con_MessageMode2_f
================
*/
static void
Con_MessageMode2_f(void)
{
key_dest = key_message;
team_message = true;
}
/*
================
Con_CheckResize
If the line width has changed, reformat the buffer.
================
*/
void Con_CheckResize (void)
{
int i, j, width, oldwidth, oldtotallines, numlines, numchars;
char tbuf[CON_TEXTSIZE];
width = (vid.width >> 3) - 2;
if (width == con_linewidth)
return;
if (width < 1) // video hasn't been initialized yet
{
width = 38;
con_linewidth = width;
con_totallines = CON_TEXTSIZE / con_linewidth;
memset(con_text, ' ', CON_TEXTSIZE);
}
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;
memmove(tbuf, con_text, CON_TEXTSIZE);
memset(con_text, ' ', CON_TEXTSIZE);
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_backscroll = 0;
con_current = con_totallines - 1;
}
/*
================
Con_Init
================
*/
void Con_Init (void)
{
con_text = Hunk_Alloc(CON_TEXTSIZE);
memset(con_text, ' ', CON_TEXTSIZE);
con_linewidth = -1;
Con_CheckResize ();
Con_Printf ("Console initialized.\n");
Cvar_RegisterVariable (&con_notifytime);
Cmd_AddCommand ("toggleconsole", Con_ToggleConsole_f);
Cmd_AddCommand ("messagemode", Con_MessageMode_f);
Cmd_AddCommand ("messagemode2", Con_MessageMode2_f);
Cmd_AddCommand ("clear", Con_Clear_f);
con_initialized = true;
}
/*
===============
Con_Linefeed
===============
*/
static void
Con_Linefeed(void)
{
con_x = 0;
con_current++;
memset(&con_text[(con_current%con_totallines)*con_linewidth], ' ', con_linewidth);
}
/* 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
* notify window will pop up. */
static void
Con_Print(char *txt)
{
int y;
int c, l;
static int cr;
int mask;
con_backscroll = 0;
if (txt[0] == 1)
{
mask = 128; // go to colored text
localsfx ("misc/talk.wav");
// play talk wav
txt++;
}
else if (txt[0] == 2)
{
mask = 128; // go to colored text
txt++;
}
else
mask = 0;
while ( (c = *txt) )
{
// count word length
for (l=0 ; l< con_linewidth ; l++)
if ( txt[l] <= ' ')
break;
// word wrap
if (l != con_linewidth && (con_x + l > con_linewidth) )
con_x = 0;
txt++;
if (cr)
{
con_current--;
cr = false;
}
if (!con_x)
{
Con_Linefeed ();
// mark time for transparent overlay
if (con_current >= 0)
con_times[con_current % NUM_CON_TIMES] = realtime;
}
switch (c)
{
case '\n':
con_x = 0;
break;
case '\r':
con_x = 0;
cr = 1;
break;
default: // display character and advance
y = con_current % con_totallines;
con_text[y*con_linewidth+con_x] = c | mask;
con_x++;
if (con_x >= con_linewidth)
con_x = 0;
break;
}
}
}
/* Handles cursor positioning, line wrapping, etc */
void
Con_Printf(char *fmt, ...)
{
va_list arg;
char msg[MAXPRINTMSG];
static bool inupdate;
va_start(arg, fmt);
vsnprintf(msg, sizeof msg, fmt, arg);
va_end(arg);
if(!con_initialized)
return;
if(cls.state == ca_dedicated)
return; // no graphics mode
// write it to the scrollable buffer
Con_Print(msg);
// update the screen if the console is displayed
if(cls.signon != SIGNONS && !scr_disabled_for_loading){
/* protect against infinite loop if something in
* SCR_UpdateScreen(...) calls Con_Printf() */
if(!inupdate){
inupdate = true;
SCR_UpdateScreen(false);
inupdate = false;
}
}
}
/*
================
Con_DPrintf
A Con_Printf that only shows up if the "developer" cvar is set
================
*/
void Con_DPrintf (char *fmt, ...)
{
va_list argptr;
char msg[MAXPRINTMSG];
int n;
if (!developer.value)
return; // don't confuse non-developers with techie stuff...
va_start (argptr,fmt);
n = vsprintf (msg,fmt,argptr);
va_end (argptr);
Con_Printf ("%s", msg);
if(developer.value > 1 && write(2, msg, n) < 0)
setcvar("developer", "0");
}
/*
==============================================================================
DRAWING
==============================================================================
*/
/*
================
Con_DrawInput
The input line scrolls horizontally if typing goes beyond the right edge
================
*/
static void
Con_DrawInput(void)
{
int y;
int i;
char *text;
if (key_dest != key_console && !con_forcedup)
return; // don't draw anything
text = key_lines[edit_line];
// add the cursor frame
text[key_linepos] = 10+((int)(realtime*con_cursorspeed)&1);
// fill out remainder with spaces
for (i=key_linepos+1 ; i< con_linewidth ; i++)
text[i] = ' ';
// prestep if horizontally scrolling
if (key_linepos >= con_linewidth)
text += 1 + key_linepos - con_linewidth;
// draw it
y = con_vislines-16;
for (i=0 ; i<con_linewidth ; i++)
Draw_Character ( (i+1)<<3, y, text[i]);
// remove cursor
key_lines[edit_line][key_linepos] = 0;
}
/*
================
Con_DrawNotify
Draws the last few lines of output transparently over the game top
================
*/
void Con_DrawNotify (void)
{
int x, v;
char *text;
int i;
float time;
extern char chat_buffer[];
v = 0;
for (i= con_current-NUM_CON_TIMES+1 ; i<=con_current ; i++)
{
if (i < 0)
continue;
time = con_times[i % NUM_CON_TIMES];
if (time == 0)
continue;
time = realtime - time;
if (time > con_notifytime.value)
continue;
text = con_text + (i % con_totallines)*con_linewidth;
clearnotify = 0;
for (x = 0 ; x < con_linewidth ; x++)
Draw_Character ( (x+1)<<3, v, text[x]);
v += 8;
}
if (key_dest == key_message)
{
clearnotify = 0;
x = 0;
Draw_String (8, v, "say:");
while(chat_buffer[x])
{
Draw_Character ( (x+5)<<3, v, chat_buffer[x]);
x++;
}
Draw_Character ( (x+5)<<3, v, 10+((int)(realtime*con_cursorspeed)&1));
v += 8;
}
if (v > con_notifylines)
con_notifylines = v;
}
/*
================
Con_DrawConsole
Draws the console with the solid background
The typing input line at the bottom should only be drawn if typing is allowed
================
*/
void Con_DrawConsole (int lines, bool drawinput)
{
int i, x, y;
int rows;
char *text;
int j;
if (lines <= 0)
return;
// draw the background
Draw_ConsoleBackground (lines);
// draw the text
con_vislines = lines;
rows = (lines-16)>>3; // rows of text to draw
y = lines - 16 - (rows<<3); // may start slightly negative
for (i= con_current - rows + 1 ; i<=con_current ; i++, y+=8 )
{
j = i - con_backscroll;
if (j<0)
j = 0;
text = con_text + (j % con_totallines)*con_linewidth;
for (x=0 ; x<con_linewidth ; x++)
Draw_Character ( (x+1)<<3, y, text[x]);
}
// draw the input prompt, user text, and cursor if desired
if (drawinput)
Con_DrawInput ();
}