server/socket/info.c

/*
 * static char *rcsid_sock_info_c =
 *   "$Id: info.c,v 1.25 2006/02/10 23:59:28 akirschbaum Exp $";
 */

/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

    The authors can be reached via e-mail at crossfire-devel@real-time.com
*/

/**
 * \file
 * Basic client output functions.
 *
 * \date 2003-12-02
 *
 * This file implements some of the simpler output functions to the
 * client.  Basically, things like sending text strings along
 */

#include <global.h>
#include <sproto.h>
#include <stdarg.h>
#include <spells.h>
#include <skills.h>

/**
 * Draws a normal message on the client.  It is pretty 
 * much the same thing as the draw_info above, but takes a color
 * parameter.  the esrv_drawinfo functions should probably be
 * replaced with this, just using black as the color.
 */
static void esrv_print_msg(NewSocket *ns,int color, const char *str)
{
    char buf[HUGE_BUF];

    if (ns->status == Ns_Old) {
        snprintf(buf,HUGE_BUF,"%s\n", str);
    } else {
        snprintf(buf,HUGE_BUF, "drawinfo %d %s", color, str);
    }
/*    LOG(llevDebug,"sending %s to socket, len=%d\n", buf, strlen(buf));*/
    Write_String_To_Socket(ns, buf, strlen(buf));
}

/**
 * Draws   an extended message on the client. 
 * ns      the socket to send message to
 * color   color informations (used mainly if client does not support message type)
 * type,
 * subtype type and subtype of text message
 * intro   Intro message to send with main message if client does not support the message type
 * message The main message
 */
static void esrv_print_ext_msg(NewSocket *ns,int color,uint8 type, uint8 subtype, const char *message)
{
    char buf[HUGE_BUF];
    snprintf(buf,HUGE_BUF, "drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
        Write_String_To_Socket(ns, buf, strlen(buf));
/*    LOG(llevDebug,"sending %s to socket, len=%d", buf, strlen(buf));*/

}

/**
 * Frontend for esrv_print_msg
 * \param colr message color
 * \param pl player to send to. Can be NULL
 * \param tmp message to send. Can be NULL
 *
 * If pl is NULL or without contr set, writes message to log.
 *
 * Else sends message to player via esrv_print_msg
 */

static void print_message(int colr, const object *pl, const char *tmp) {

  if(tmp == (char *) NULL) {
    tmp="[NULL]";
  }

  if(!pl || (pl->type==PLAYER && pl->contr==NULL)) {
      fprintf(logfile,"%s\n",tmp);
    return;
  }
  if (pl->type == PLAYER) {
    esrv_print_msg(&pl->contr->socket,colr,(char*) tmp);
    return;
  }
}


/**
 * Prints out the contents of specified buffer structures,
 * and clears the string.
 */

void flush_output_element(const object *pl, Output_Buf *outputs)
{
    char tbuf[MAX_BUF];

    if (outputs->buf==NULL) return;
    snprintf(tbuf,MAX_BUF, "%d times %s", outputs->count, outputs->buf);
    print_message(NDI_BLACK, pl, tbuf);
    free_string(outputs->buf);
    outputs->buf=NULL;
    outputs->first_update=0;    /* This way, it will be reused */
}

/**
 * Sends message to player through output buffers.
 * \param pl player to send message
 * \param buf message to send
 *
 * If player's output_count is 1, sends message directly.
 *
 * Else checks output buffers for specified message.
 *
 * If found, checks if message should be sent now.
 *
 * If message not already in buffers, flushes olders buffer,
 * and adds message to queue.
 */

static void check_output_buffers(const object *pl, const char *buf)
{
    int i, oldest=0;

    if (pl->contr->outputs_count<2) {
        print_message(NDI_BLACK, pl, buf);
        return;
    }
    else {
        for (i=0; i<NUM_OUTPUT_BUFS; i++) {
            if (pl->contr->outputs[i].buf && 
                !strcmp(buf, pl->contr->outputs[i].buf)) break;
            else if (pl->contr->outputs[i].first_update <
                pl->contr->outputs[oldest].first_update)
                        oldest=i;
        }
        /* We found a match */
        if (i<NUM_OUTPUT_BUFS) {
            pl->contr->outputs[i].count++;
            if (pl->contr->outputs[i].count>=pl->contr->outputs_count) {
                flush_output_element(pl, &pl->contr->outputs[i]);
            }
        }
        /* No match - flush the oldest, and put the new one in */
        else {
            flush_output_element(pl, &pl->contr->outputs[oldest]);

            pl->contr->outputs[oldest].first_update = pticks;
            pl->contr->outputs[oldest].count = 1;
            if (pl->contr->outputs[oldest].buf!=NULL)
                free_string(pl->contr->outputs[oldest].buf);
            pl->contr->outputs[oldest].buf = add_string(buf);
        }
    }
}
            

/**
 * Sends message to player(s).
 *
 * flags is various flags - mostly color, plus a few specials.
 *
 * pri is priority.  It is a little odd - the lower the value, the more
 * important it is.  Thus, 0 gets sent no matter what.  Otherwise, the
 * value must be less than the listening level that the player has set.
 * Unfortunately, there is no clear guideline on what each level does what.
 *
 * pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
 * in the flags.
 *
 * If message is black, and not NDI_UNIQUE, gets sent through output buffers.
 *
 */

void new_draw_info(int flags, int pri, const object *pl, const char *buf)
{

    if (flags & NDI_ALL) {
        player  *tmppl;
        int i;

        for (tmppl=first_player; tmppl!=NULL; tmppl=tmppl->next)
                new_draw_info((flags & ~NDI_ALL), pri, tmppl->ob, buf);

        for (i=1; i<socket_info.allocated_sockets; i++) {
            if (init_sockets[i].status == Ns_Old && init_sockets[i].old_mode != Old_Listen && pri< 10) {
                cs_write_string(&init_sockets[i], buf, strlen(buf));
                /* Most messages don't have a newline, so add one */
                cs_write_string(&init_sockets[i], "\n", 1);
            }
        }

        return;
    }
    if(!pl || (pl->type==PLAYER && pl->contr==NULL)) {
        /* Write to the socket? */
        print_message(0, NULL, buf);
        return;
    }
    if (pl->type!=PLAYER) return;
    if (pri>=pl->contr->listening) return;

    if ((flags&NDI_COLOR_MASK)==NDI_BLACK && !(flags &NDI_UNIQUE)) {
        /* following prints stuff out, as appropriate */
        check_output_buffers(pl, buf);
    }
    else {
        print_message(flags&NDI_COLOR_MASK, pl, buf);
    }
}

/**
 * Wrapper for new_draw_info printf-like.
 *
 * This is a pretty trivial function, but it allows us to use printf style
 * formatting, so instead of the calling function having to do it, we do
 * it here.  It may also have advantages in the future for reduction of
 * client/server bandwidth (client could keep track of various strings
 */

void new_draw_info_format(int flags, int pri, const object *pl, const char *format, ...)
{
    char buf[HUGE_BUF];

    va_list ap;
    va_start(ap, format);

    vsnprintf(buf, HUGE_BUF, format, ap);

    va_end(ap);

    new_draw_info(flags, pri, pl, buf);
}


void draw_ext_info(
        int flags, int pri, const object *pl, uint8 type, 
        uint8 subtype, const char* message, const char* oldmessage){
            
    if(!pl || (pl->type!=PLAYER) || (pl->contr==NULL))
        return;
        
    if (pri>=pl->contr->listening) return;
    if (!CLIENT_SUPPORT_READABLES(&pl->contr->socket,type)){
        char *buf = (char*)malloc(strlen(oldmessage==NULL?message:oldmessage)+1);
        if (buf==NULL)
            LOG(llevError,"info::draw_ext_info -> Out of memory!");
        else{
            strcpy(buf,oldmessage==NULL?message:oldmessage);
            strip_media_tag(buf);
            new_draw_info(flags, pri, pl, buf);
            free(buf);
        }
    }else{
        esrv_print_ext_msg(&pl->contr->socket,flags&NDI_COLOR_MASK,type,subtype,message);
    }
}

void draw_ext_info_format(
        int flags, int pri, const object *pl, uint8 type, 
        uint8 subtype, const char* old_format, 
        char* new_format, ...){
            
    char buf[HUGE_BUF];
        if(!pl || (pl->type!=PLAYER) || (pl->contr==NULL))
                return;
                
    if (pri>=pl->contr->listening) return;
        if (!CLIENT_SUPPORT_READABLES(&pl->contr->socket,type)){
        va_list ap;
        LOG(llevDebug,"Non supported extension text type for client.\n");
        va_start(ap, new_format);
        vsnprintf(buf, HUGE_BUF, old_format, ap);
        va_end(ap);
        new_draw_info(flags, pri, pl, buf);
                return;
        }else{
        va_list ap;
        va_start(ap, new_format);
        vsnprintf(buf, HUGE_BUF, new_format, ap);
        va_end(ap);
        strip_media_tag(buf);
        esrv_print_ext_msg(&pl->contr->socket,flags&NDI_COLOR_MASK,type,subtype,buf);
    }
}
/**
 * Writes to everyone on the map *except* op.  This is useful for emotions.
 */

void new_info_map_except(int color, mapstruct *map, object *op, const char *str) {
    player *pl;

    for(pl = first_player; pl != NULL; pl = pl->next)
        if(pl->ob != NULL && pl->ob->map == map && pl->ob != op) {
            new_draw_info(color, 0, pl->ob, str);
        }
}

/**
 * Writes to everyone on the map except op1 and op2
 */

void new_info_map_except2(int color, mapstruct *map, object *op1, object *op2,
                          const char *str) {
    player *pl;

    for(pl = first_player; pl != NULL; pl = pl->next)
        if(pl->ob != NULL && pl->ob->map == map
           && pl->ob != op1 && pl->ob != op2) {
            new_draw_info(color, 0, pl->ob, str);
        }
}

/**
 * Writes to everyone on the specified map
 */

void new_info_map(int color, mapstruct *map, const char *str) {
    player *pl;

    for(pl = first_player; pl != NULL; pl = pl->next)
        if(pl->ob != NULL && pl->ob->map == map) {
            new_draw_info(color, 0, pl->ob, str);
        }
}


/**
 * This does nothing now.  However, in theory, we should probably send
 * something to the client and let the client figure out how it might want
 * to handle this
 */
void clear_win_info(object *op)
{
}

/**
 * Get player's current range attack in obuf.
 */
void rangetostring(object *pl,char *obuf)
{
    switch(pl->contr->shoottype) {
        case range_none:
            strcpy(obuf,"Range: nothing");
            break;

        case range_bow:
            {
            object *op;

            for (op = pl->inv; op; op=op->below)
                if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
                    break;
            if(op==NULL) break;

            sprintf (obuf, "Range: %s (%s)", query_base_name(op, 0), 
                     op->race ? op->race : "nothing");
            }
            break;

        case range_magic:
            if (settings.casting_time == TRUE) {
                if (pl->casting_time > -1) {
                    if (pl->casting_time == 0)
                        sprintf(obuf,"Range: Holding spell (%s)",
                                pl->spell->name);
                    else
                        sprintf(obuf,"Range: Casting spell (%s)",
                                pl->spell->name);
                } else
                    sprintf(obuf,"Range: spell (%s)", 
                            pl->contr->ranges[range_magic]->name);
            } else
                sprintf(obuf,"Range: spell (%s)", 
                        pl->contr->ranges[range_magic]->name);
            break;

        case range_misc:
            sprintf(obuf,"Range: %s", 
                    pl->contr->ranges[range_misc]?
                    query_base_name(pl->contr->ranges[range_misc],0): "none");
            break;

        /* range_scroll is only used for controlling golems.  If the
         * the player does not have a golem, reset some things.
         */
        case range_golem:
            if (pl->contr->ranges[range_golem]!=NULL)
                sprintf(obuf,"Range: golem (%s)",pl->contr->ranges[range_golem]->name);
            else {
                pl->contr->shoottype = range_none;
                strcpy(obuf,"Range: nothing");
            }
            break;

        case range_skill:
            sprintf(obuf,"Skill: %s", pl->chosen_skill!=NULL ?
                    pl->chosen_skill->name : "none");
            break;

    case range_builder:
        sprintf( obuf, "Builder: %s", query_base_name( pl->contr->ranges[ range_builder ], 0 ) );
        break;

        default:
            strcpy(obuf,"Range: illegal");
    }
}

/**
 * Sets player title.
 */
void set_title(object *pl, char *buf)
{
    /* Eneq(@csd.uu.se): Let players define their own titles. */
    if (pl->contr->own_title[0]=='\0')
        sprintf(buf,"Player: %s the %s",pl->name,pl->contr->title);
    else
        sprintf(buf,"Player: %s %s",pl->name,pl->contr->own_title);
}


/**
 * Helper for magic map creation.
 *
 * Takes a player, the map_mark array and an x and y starting position.
 * pl is the player.
 * px, py are offsets from the player.
 *
 * This function examines all the adjacant spaces next to px, py.
 * It updates the map_mark arrow with the color and high bits set
 * for various code values.
 */
static void magic_mapping_mark_recursive(object *pl, char *map_mark, int px, int py)
{
    int x, y, dx, dy,mflags;
    sint16 nx, ny;
    mapstruct *mp;
    New_Face *f;

    for (dx = -1; dx <= 1; dx++) {
        for (dy = -1; dy <= 1; dy++) {
            x = px + dx;
            y = py + dy;

            if (FABS(x) >= MAGIC_MAP_HALF || FABS(y) >= MAGIC_MAP_HALF) continue;

            mp = pl->map;
            nx = pl->x + x;
            ny = pl->y + y;

            mflags = get_map_flags(pl->map, &mp, nx, ny, &nx, &ny);
            if (mflags & P_OUT_OF_MAP) continue;

            if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] == 0) {
                f= GET_MAP_FACE(mp, nx, ny, 0);
                if (f == blank_face)
                    f= GET_MAP_FACE(mp, nx, ny, 1);
                if (f == blank_face)
                    f= GET_MAP_FACE(mp, nx, ny, 2);

                /* Should probably have P_NO_MAGIC here also, but then shops don't
                 * work.
                 */
                if (mflags & P_BLOCKSVIEW)
                    map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_WALL | (f?f->magicmap:0);
                else {
                    map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f?f->magicmap:0);
                    magic_mapping_mark_recursive(pl, map_mark, x, y);
                }
            }
        }
    }
}


/**
 * Creates magic map for player.
 *
 * Note:  For improved magic mapping display, the space that blocks
 * the view is now marked with value 2.  Any dependencies of map_mark
 * being nonzero have been changed to check for 1.  Also, since
 * map_mark is a char value, putting 2 in should cause no problems.
 *
 * This function examines the map the player is on, and determines what
 * is visible.  2 is set for walls or objects that blocks view.  1
 * is for open spaces.  map_mark should already have been initialized
 * to zero before this is called.
 * strength is an initial strength*2 rectangular area that we automatically
 * see in/penetrate through.
 */

void magic_mapping_mark(object *pl, char *map_mark, int strength)
{
    int x, y, mflags;
    sint16 nx, ny;
    mapstruct *mp;
    New_Face *f;

    for (x = -strength; x <strength; x++) {
        for (y = -strength; y <strength; y++) {
            mp = pl->map;
            nx = pl->x + x;
            ny = pl->y + y;
            mflags = get_map_flags(pl->map, &mp, nx, ny, &nx, &ny);
            if (mflags & P_OUT_OF_MAP)
                continue;
            else {
                f= GET_MAP_FACE(mp, nx, ny, 0);
                if (f == blank_face)
                    f= GET_MAP_FACE(mp, nx, ny, 1);
                if (f == blank_face)
                    f= GET_MAP_FACE(mp, nx, ny, 2);
            }

            if (mflags & P_BLOCKSVIEW)
                map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_WALL | (f?f->magicmap:0);
            else {
                map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f?f->magicmap:0);
                magic_mapping_mark_recursive(pl, map_mark, x, y);
            }
        }
    }
}


/**
 * Creates and sends magic map to player.
 *
 * The following function is a lot messier than it really should be,
 * but there is no real easy solution.
 *
 * Mark Wedel
 */

void draw_magic_map(object *pl) 
{
    int x,y;
    char *map_mark = (char *) calloc(MAGIC_MAP_SIZE*MAGIC_MAP_SIZE, 1);
    int xmin, xmax, ymin, ymax;
    SockList sl;

    if (pl->type!=PLAYER) {
        LOG(llevError,"Non player object called draw_map.\n");
        return;
    }
   
    /* First, we figure out what spaces are 'reachable' by the player */
    magic_mapping_mark(pl, map_mark, 3);

    /* We now go through and figure out what spaces have been
     * marked, and thus figure out rectangular region we send
     * to the client (eg, if only a 10x10 area is visible, we only
     * want to send those 100 spaces.)
     */
    xmin = MAGIC_MAP_SIZE;
    ymin = MAGIC_MAP_SIZE;
    xmax = 0;
    ymax = 0;
    for(x = 0; x < MAGIC_MAP_SIZE ; x++) {
        for(y = 0; y < MAGIC_MAP_SIZE; y++) {
            if (map_mark[x + MAP_WIDTH(pl->map) * y] | FACE_FLOOR) {
                xmin = x < xmin ? x : xmin;
                xmax = x > xmax ? x : xmax;
                ymin = y < ymin ? y : ymin;
                ymax = y > ymax ? y : ymax;
            }
        }
    }

    sl.buf=malloc(MAXSOCKBUF);
    snprintf((char*)sl.buf, MAXSOCKBUF, "magicmap %d %d %d %d ", (xmax-xmin+1), (ymax-ymin+1),
            MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
    sl.len=strlen((char*)sl.buf);
    
    for (y = ymin; y <= ymax; y++) {
        for (x = xmin; x <= xmax; x++) {
            sl.buf[sl.len++]= map_mark[x+MAGIC_MAP_SIZE*y] & ~FACE_FLOOR;
        } /* x loop */
    } /* y loop */
    
    Send_With_Handling(&pl->contr->socket, &sl);
    free(sl.buf);
    free(map_mark);
}


/**
 * Send a kill log record to sockets
 */

void Log_Kill(const char *Who,
            const char *What, int WhatType,
            const char *With, int WithType)
{
    int i;
    size_t len;
    char buf[MAX_BUF];

    if (With!=NULL) {
        snprintf(buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n",Who,What,WhatType,With,WithType);
    }
    else {
        snprintf(buf,MAX_BUF, "%s\t%s\t%d\n",Who,What,WhatType);
    }
    len=strlen(buf);
    for(i=1; i<socket_info.allocated_sockets; i++) {
        if (init_sockets[i].old_mode == Old_Listen) {
            cs_write_string(&init_sockets[i], buf, len);
        }
    }
}
Revision:	1.1.1.2 (vendor branch)
Committed:	Wed Feb 22 18:03:28 2006 UTC (18 years, 3 months ago) by elmex
Content type:	text/plain
Branch:	UPSTREAM
CVS Tags:	UPSTREAM_2006_03_15, UPSTREAM_2006_02_22
Changes since 1.1.1.1:	+8 -8 lines
Log Message:	cvs -z7 -d:ext:elmex@cvs.schmorp.de:/schmorpforge import cf.schmorp.de UPSTREAM UPSTREAM_2006_02_22
#	User	Rev	Content
1	root	1.1	/*
2			* static char *rcsid_sock_info_c =
3	elmex	1.1.1.2	* "$Id: info.c,v 1.25 2006/02/10 23:59:28 akirschbaum Exp $";
4	root	1.1	*/
5
6			/*
7			CrossFire, A Multiplayer game for X-windows
8
9			Copyright (C) 2002 Mark Wedel & Crossfire Development Team
10			Copyright (C) 1992 Frank Tore Johansen
11
12			This program is free software; you can redistribute it and/or modify
13			it under the terms of the GNU General Public License as published by
14			the Free Software Foundation; either version 2 of the License, or
15			(at your option) any later version.
16
17			This program is distributed in the hope that it will be useful,
18			but WITHOUT ANY WARRANTY; without even the implied warranty of
19			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20			GNU General Public License for more details.
21
22			You should have received a copy of the GNU General Public License
23			along with this program; if not, write to the Free Software
24			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25
26			The authors can be reached via e-mail at crossfire-devel@real-time.com
27			*/
28
29			/**
30			* \file
31			* Basic client output functions.
32			*
33			* \date 2003-12-02
34			*
35			* This file implements some of the simpler output functions to the
36			* client. Basically, things like sending text strings along
37			*/
38
39			#include <global.h>
40			#include <sproto.h>
41			#include <stdarg.h>
42			#include <spells.h>
43			#include <skills.h>
44
45			/**
46			* Draws a normal message on the client. It is pretty
47			* much the same thing as the draw_info above, but takes a color
48			* parameter. the esrv_drawinfo functions should probably be
49			* replaced with this, just using black as the color.
50			*/
51			static void esrv_print_msg(NewSocket ns,int color, const char str)
52			{
53			char buf[HUGE_BUF];
54
55			if (ns->status == Ns_Old) {
56			snprintf(buf,HUGE_BUF,"%s\n", str);
57			} else {
58			snprintf(buf,HUGE_BUF, "drawinfo %d %s", color, str);
59			}
60			/* LOG(llevDebug,"sending %s to socket, len=%d\n", buf, strlen(buf));*/
61			Write_String_To_Socket(ns, buf, strlen(buf));
62			}
63
64			/**
65			* Draws an extended message on the client.
66			* ns the socket to send message to
67			* color color informations (used mainly if client does not support message type)
68			* type,
69			* subtype type and subtype of text message
70			* intro Intro message to send with main message if client does not support the message type
71			* message The main message
72			*/
73			static void esrv_print_ext_msg(NewSocket ns,int color,uint8 type, uint8 subtype, const char message)
74			{
75			char buf[HUGE_BUF];
76			snprintf(buf,HUGE_BUF, "drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
77			Write_String_To_Socket(ns, buf, strlen(buf));
78			/* LOG(llevDebug,"sending %s to socket, len=%d", buf, strlen(buf));*/
79
80			}
81
82			/**
83			* Frontend for esrv_print_msg
84			* \param colr message color
85			* \param pl player to send to. Can be NULL
86			* \param tmp message to send. Can be NULL
87			*
88			* If pl is NULL or without contr set, writes message to log.
89			*
90			* Else sends message to player via esrv_print_msg
91			*/
92
93	elmex	1.1.1.2	static void print_message(int colr, const object pl, const char tmp) {
94	root	1.1
95			if(tmp == (char *) NULL) {
96			tmp="[NULL]";
97			}
98
99			if(!pl \|\| (pl->type==PLAYER && pl->contr==NULL)) {
100			fprintf(logfile,"%s\n",tmp);
101			return;
102			}
103			if (pl->type == PLAYER) {
104			esrv_print_msg(&pl->contr->socket,colr,(char*) tmp);
105			return;
106			}
107			}
108
109
110			/**
111			* Prints out the contents of specified buffer structures,
112			* and clears the string.
113			*/
114
115	elmex	1.1.1.2	void flush_output_element(const object pl, Output_Buf outputs)
116	root	1.1	{
117			char tbuf[MAX_BUF];
118
119			if (outputs->buf==NULL) return;
120			snprintf(tbuf,MAX_BUF, "%d times %s", outputs->count, outputs->buf);
121			print_message(NDI_BLACK, pl, tbuf);
122			free_string(outputs->buf);
123			outputs->buf=NULL;
124			outputs->first_update=0; /* This way, it will be reused */
125			}
126
127			/**
128			* Sends message to player through output buffers.
129			* \param pl player to send message
130			* \param buf message to send
131			*
132			* If player's output_count is 1, sends message directly.
133			*
134			* Else checks output buffers for specified message.
135			*
136			* If found, checks if message should be sent now.
137			*
138			* If message not already in buffers, flushes olders buffer,
139			* and adds message to queue.
140			*/
141
142	elmex	1.1.1.2	static void check_output_buffers(const object pl, const char buf)
143	root	1.1	{
144			int i, oldest=0;
145
146			if (pl->contr->outputs_count<2) {
147			print_message(NDI_BLACK, pl, buf);
148			return;
149			}
150			else {
151			for (i=0; i<NUM_OUTPUT_BUFS; i++) {
152			if (pl->contr->outputs[i].buf &&
153			!strcmp(buf, pl->contr->outputs[i].buf)) break;
154			else if (pl->contr->outputs[i].first_update <
155			pl->contr->outputs[oldest].first_update)
156			oldest=i;
157			}
158			/* We found a match */
159			if (i<NUM_OUTPUT_BUFS) {
160			pl->contr->outputs[i].count++;
161			if (pl->contr->outputs[i].count>=pl->contr->outputs_count) {
162			flush_output_element(pl, &pl->contr->outputs[i]);
163			}
164			}
165			/* No match - flush the oldest, and put the new one in */
166			else {
167			flush_output_element(pl, &pl->contr->outputs[oldest]);
168
169			pl->contr->outputs[oldest].first_update = pticks;
170			pl->contr->outputs[oldest].count = 1;
171			if (pl->contr->outputs[oldest].buf!=NULL)
172			free_string(pl->contr->outputs[oldest].buf);
173			pl->contr->outputs[oldest].buf = add_string(buf);
174			}
175			}
176			}
177
178
179
180			/**
181			* Sends message to player(s).
182			*
183			* flags is various flags - mostly color, plus a few specials.
184			*
185			* pri is priority. It is a little odd - the lower the value, the more
186			* important it is. Thus, 0 gets sent no matter what. Otherwise, the
187			* value must be less than the listening level that the player has set.
188			* Unfortunately, there is no clear guideline on what each level does what.
189			*
190			* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
191			* in the flags.
192			*
193			* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
194			*
195			*/
196
197	elmex	1.1.1.2	void new_draw_info(int flags, int pri, const object pl, const char buf)
198	root	1.1	{
199
200			if (flags & NDI_ALL) {
201			player *tmppl;
202			int i;
203
204			for (tmppl=first_player; tmppl!=NULL; tmppl=tmppl->next)
205			new_draw_info((flags & ~NDI_ALL), pri, tmppl->ob, buf);
206
207			for (i=1; i<socket_info.allocated_sockets; i++) {
208			if (init_sockets[i].status == Ns_Old && init_sockets[i].old_mode != Old_Listen && pri< 10) {
209			cs_write_string(&init_sockets[i], buf, strlen(buf));
210			/* Most messages don't have a newline, so add one */
211			cs_write_string(&init_sockets[i], "\n", 1);
212			}
213			}
214
215			return;
216			}
217			if(!pl \|\| (pl->type==PLAYER && pl->contr==NULL)) {
218			/* Write to the socket? */
219			print_message(0, NULL, buf);
220			return;
221			}
222			if (pl->type!=PLAYER) return;
223			if (pri>=pl->contr->listening) return;
224
225			if ((flags&NDI_COLOR_MASK)==NDI_BLACK && !(flags &NDI_UNIQUE)) {
226			/* following prints stuff out, as appropriate */
227			check_output_buffers(pl, buf);
228			}
229			else {
230			print_message(flags&NDI_COLOR_MASK, pl, buf);
231			}
232			}
233
234			/**
235			* Wrapper for new_draw_info printf-like.
236			*
237			* This is a pretty trivial function, but it allows us to use printf style
238			* formatting, so instead of the calling function having to do it, we do
239			* it here. It may also have advantages in the future for reduction of
240			* client/server bandwidth (client could keep track of various strings
241			*/
242
243	elmex	1.1.1.2	void new_draw_info_format(int flags, int pri, const object pl, const char format, ...)
244	root	1.1	{
245			char buf[HUGE_BUF];
246
247			va_list ap;
248			va_start(ap, format);
249
250			vsnprintf(buf, HUGE_BUF, format, ap);
251
252			va_end(ap);
253
254			new_draw_info(flags, pri, pl, buf);
255			}
256
257
258			void draw_ext_info(
259	elmex	1.1.1.2	int flags, int pri, const object *pl, uint8 type,
260	root	1.1	uint8 subtype, const char* message, const char* oldmessage){
261
262			if(!pl \|\| (pl->type!=PLAYER) \|\| (pl->contr==NULL))
263			return;
264
265			if (pri>=pl->contr->listening) return;
266			if (!CLIENT_SUPPORT_READABLES(&pl->contr->socket,type)){
267			char buf = (char)malloc(strlen(oldmessage==NULL?message:oldmessage)+1);
268			if (buf==NULL)
269			LOG(llevError,"info::draw_ext_info -> Out of memory!");
270			else{
271			strcpy(buf,oldmessage==NULL?message:oldmessage);
272			strip_media_tag(buf);
273			new_draw_info(flags, pri, pl, buf);
274			free(buf);
275			}
276			}else{
277			esrv_print_ext_msg(&pl->contr->socket,flags&NDI_COLOR_MASK,type,subtype,message);
278			}
279			}
280
281			void draw_ext_info_format(
282	elmex	1.1.1.2	int flags, int pri, const object *pl, uint8 type,
283	root	1.1	uint8 subtype, const char* old_format,
284			char* new_format, ...){
285
286			char buf[HUGE_BUF];
287			if(!pl \|\| (pl->type!=PLAYER) \|\| (pl->contr==NULL))
288			return;
289
290			if (pri>=pl->contr->listening) return;
291			if (!CLIENT_SUPPORT_READABLES(&pl->contr->socket,type)){
292			va_list ap;
293			LOG(llevDebug,"Non supported extension text type for client.\n");
294			va_start(ap, new_format);
295			vsnprintf(buf, HUGE_BUF, old_format, ap);
296			va_end(ap);
297			new_draw_info(flags, pri, pl, buf);
298			return;
299			}else{
300			va_list ap;
301			va_start(ap, new_format);
302			vsnprintf(buf, HUGE_BUF, new_format, ap);
303			va_end(ap);
304			strip_media_tag(buf);
305			esrv_print_ext_msg(&pl->contr->socket,flags&NDI_COLOR_MASK,type,subtype,buf);
306			}
307			}
308			/**
309			* Writes to everyone on the map except op. This is useful for emotions.
310			*/
311
312			void new_info_map_except(int color, mapstruct map, object op, const char *str) {
313			player *pl;
314
315			for(pl = first_player; pl != NULL; pl = pl->next)
316			if(pl->ob != NULL && pl->ob->map == map && pl->ob != op) {
317			new_draw_info(color, 0, pl->ob, str);
318			}
319			}
320
321			/**
322			* Writes to everyone on the map except op1 and op2
323			*/
324
325			void new_info_map_except2(int color, mapstruct map, object op1, object *op2,
326			const char *str) {
327			player *pl;
328
329			for(pl = first_player; pl != NULL; pl = pl->next)
330			if(pl->ob != NULL && pl->ob->map == map
331			&& pl->ob != op1 && pl->ob != op2) {
332			new_draw_info(color, 0, pl->ob, str);
333			}
334			}
335
336			/**
337			* Writes to everyone on the specified map
338			*/
339
340			void new_info_map(int color, mapstruct map, const char str) {
341			player *pl;
342
343			for(pl = first_player; pl != NULL; pl = pl->next)
344			if(pl->ob != NULL && pl->ob->map == map) {
345			new_draw_info(color, 0, pl->ob, str);
346			}
347			}
348
349
350			/**
351			* This does nothing now. However, in theory, we should probably send
352			* something to the client and let the client figure out how it might want
353			* to handle this
354			*/
355			void clear_win_info(object *op)
356			{
357			}
358
359			/**
360			* Get player's current range attack in obuf.
361			*/
362			void rangetostring(object pl,char obuf)
363			{
364			switch(pl->contr->shoottype) {
365			case range_none:
366			strcpy(obuf,"Range: nothing");
367			break;
368
369			case range_bow:
370			{
371			object *op;
372
373			for (op = pl->inv; op; op=op->below)
374			if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
375			break;
376			if(op==NULL) break;
377
378			sprintf (obuf, "Range: %s (%s)", query_base_name(op, 0),
379			op->race ? op->race : "nothing");
380			}
381			break;
382
383			case range_magic:
384			if (settings.casting_time == TRUE) {
385			if (pl->casting_time > -1) {
386			if (pl->casting_time == 0)
387			sprintf(obuf,"Range: Holding spell (%s)",
388			pl->spell->name);
389			else
390			sprintf(obuf,"Range: Casting spell (%s)",
391			pl->spell->name);
392			} else
393			sprintf(obuf,"Range: spell (%s)",
394			pl->contr->ranges[range_magic]->name);
395			} else
396			sprintf(obuf,"Range: spell (%s)",
397			pl->contr->ranges[range_magic]->name);
398			break;
399
400			case range_misc:
401			sprintf(obuf,"Range: %s",
402			pl->contr->ranges[range_misc]?
403			query_base_name(pl->contr->ranges[range_misc],0): "none");
404			break;
405
406			/* range_scroll is only used for controlling golems. If the
407			* the player does not have a golem, reset some things.
408			*/
409			case range_golem:
410			if (pl->contr->ranges[range_golem]!=NULL)
411			sprintf(obuf,"Range: golem (%s)",pl->contr->ranges[range_golem]->name);
412			else {
413			pl->contr->shoottype = range_none;
414			strcpy(obuf,"Range: nothing");
415			}
416			break;
417
418			case range_skill:
419			sprintf(obuf,"Skill: %s", pl->chosen_skill!=NULL ?
420			pl->chosen_skill->name : "none");
421			break;
422
423			case range_builder:
424			sprintf( obuf, "Builder: %s", query_base_name( pl->contr->ranges[ range_builder ], 0 ) );
425			break;
426
427			default:
428			strcpy(obuf,"Range: illegal");
429			}
430			}
431
432			/**
433			* Sets player title.
434			*/
435			void set_title(object pl, char buf)
436			{
437			/* Eneq(@csd.uu.se): Let players define their own titles. */
438			if (pl->contr->own_title[0]=='\0')
439			sprintf(buf,"Player: %s the %s",pl->name,pl->contr->title);
440			else
441			sprintf(buf,"Player: %s %s",pl->name,pl->contr->own_title);
442			}
443
444
445			/**
446			* Helper for magic map creation.
447			*
448			* Takes a player, the map_mark array and an x and y starting position.
449			* pl is the player.
450			* px, py are offsets from the player.
451			*
452			* This function examines all the adjacant spaces next to px, py.
453			* It updates the map_mark arrow with the color and high bits set
454			* for various code values.
455			*/
456			static void magic_mapping_mark_recursive(object pl, char map_mark, int px, int py)
457			{
458			int x, y, dx, dy,mflags;
459			sint16 nx, ny;
460			mapstruct *mp;
461			New_Face *f;
462
463			for (dx = -1; dx <= 1; dx++) {
464			for (dy = -1; dy <= 1; dy++) {
465			x = px + dx;
466			y = py + dy;
467
468			if (FABS(x) >= MAGIC_MAP_HALF \|\| FABS(y) >= MAGIC_MAP_HALF) continue;
469
470			mp = pl->map;
471			nx = pl->x + x;
472			ny = pl->y + y;
473
474			mflags = get_map_flags(pl->map, &mp, nx, ny, &nx, &ny);
475			if (mflags & P_OUT_OF_MAP) continue;
476
477			if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] == 0) {
478			f= GET_MAP_FACE(mp, nx, ny, 0);
479			if (f == blank_face)
480			f= GET_MAP_FACE(mp, nx, ny, 1);
481			if (f == blank_face)
482			f= GET_MAP_FACE(mp, nx, ny, 2);
483
484			/* Should probably have P_NO_MAGIC here also, but then shops don't
485			* work.
486			*/
487			if (mflags & P_BLOCKSVIEW)
488			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f?f->magicmap:0);
489			else {
490			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f?f->magicmap:0);
491			magic_mapping_mark_recursive(pl, map_mark, x, y);
492			}
493			}
494			}
495			}
496			}
497
498
499			/**
500			* Creates magic map for player.
501			*
502			* Note: For improved magic mapping display, the space that blocks
503			* the view is now marked with value 2. Any dependencies of map_mark
504			* being nonzero have been changed to check for 1. Also, since
505			* map_mark is a char value, putting 2 in should cause no problems.
506			*
507			* This function examines the map the player is on, and determines what
508			* is visible. 2 is set for walls or objects that blocks view. 1
509			* is for open spaces. map_mark should already have been initialized
510			* to zero before this is called.
511			* strength is an initial strength*2 rectangular area that we automatically
512			* see in/penetrate through.
513			*/
514
515			void magic_mapping_mark(object pl, char map_mark, int strength)
516			{
517			int x, y, mflags;
518			sint16 nx, ny;
519			mapstruct *mp;
520			New_Face *f;
521
522			for (x = -strength; x <strength; x++) {
523			for (y = -strength; y <strength; y++) {
524			mp = pl->map;
525			nx = pl->x + x;
526			ny = pl->y + y;
527			mflags = get_map_flags(pl->map, &mp, nx, ny, &nx, &ny);
528			if (mflags & P_OUT_OF_MAP)
529			continue;
530			else {
531			f= GET_MAP_FACE(mp, nx, ny, 0);
532			if (f == blank_face)
533			f= GET_MAP_FACE(mp, nx, ny, 1);
534			if (f == blank_face)
535			f= GET_MAP_FACE(mp, nx, ny, 2);
536			}
537
538			if (mflags & P_BLOCKSVIEW)
539			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f?f->magicmap:0);
540			else {
541			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f?f->magicmap:0);
542			magic_mapping_mark_recursive(pl, map_mark, x, y);
543			}
544			}
545			}
546			}
547
548
549			/**
550			* Creates and sends magic map to player.
551			*
552			* The following function is a lot messier than it really should be,
553			* but there is no real easy solution.
554			*
555			* Mark Wedel
556			*/
557
558			void draw_magic_map(object *pl)
559			{
560			int x,y;
561			char map_mark = (char ) calloc(MAGIC_MAP_SIZE*MAGIC_MAP_SIZE, 1);
562			int xmin, xmax, ymin, ymax;
563			SockList sl;
564
565			if (pl->type!=PLAYER) {
566			LOG(llevError,"Non player object called draw_map.\n");
567			return;
568			}
569
570			/* First, we figure out what spaces are 'reachable' by the player */
571			magic_mapping_mark(pl, map_mark, 3);
572
573			/* We now go through and figure out what spaces have been
574			* marked, and thus figure out rectangular region we send
575			* to the client (eg, if only a 10x10 area is visible, we only
576			* want to send those 100 spaces.)
577			*/
578			xmin = MAGIC_MAP_SIZE;
579			ymin = MAGIC_MAP_SIZE;
580			xmax = 0;
581			ymax = 0;
582			for(x = 0; x < MAGIC_MAP_SIZE ; x++) {
583			for(y = 0; y < MAGIC_MAP_SIZE; y++) {
584			if (map_mark[x + MAP_WIDTH(pl->map) * y] \| FACE_FLOOR) {
585			xmin = x < xmin ? x : xmin;
586			xmax = x > xmax ? x : xmax;
587			ymin = y < ymin ? y : ymin;
588			ymax = y > ymax ? y : ymax;
589			}
590			}
591			}
592
593			sl.buf=malloc(MAXSOCKBUF);
594			snprintf((char*)sl.buf, MAXSOCKBUF, "magicmap %d %d %d %d ", (xmax-xmin+1), (ymax-ymin+1),
595			MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
596			sl.len=strlen((char*)sl.buf);
597
598			for (y = ymin; y <= ymax; y++) {
599			for (x = xmin; x <= xmax; x++) {
600			sl.buf[sl.len++]= map_mark[x+MAGIC_MAP_SIZE*y] & ~FACE_FLOOR;
601			} /* x loop */
602			} /* y loop */
603
604			Send_With_Handling(&pl->contr->socket, &sl);
605			free(sl.buf);
606			free(map_mark);
607			}
608
609
610			/**
611			* Send a kill log record to sockets
612			*/
613
614			void Log_Kill(const char *Who,
615			const char *What, int WhatType,
616			const char *With, int WithType)
617			{
618			int i;
619			size_t len;
620			char buf[MAX_BUF];
621
622			if (With!=NULL) {
623			snprintf(buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n",Who,What,WhatType,With,WithType);
624			}
625			else {
626			snprintf(buf,MAX_BUF, "%s\t%s\t%d\n",Who,What,WhatType);
627			}
628			len=strlen(buf);
629			for(i=1; i<socket_info.allocated_sockets; i++) {
630			if (init_sockets[i].old_mode == Old_Listen) {
631			cs_write_string(&init_sockets[i], buf, len);
632			}
633			}
634			}