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/* |
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CrossFire, A Multiplayer game for the X Window System |
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|
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Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
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Copyright (C) 1992 Frank Tore Johansen |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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|
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The author can be reached via e-mail to crossfire@schmorp.de |
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*/ |
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|
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#ifndef CLIENT_H |
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#define CLIENT_H |
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|
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#include <deque> |
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|
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// (possibly) max. number of objects "per page" in the ground container |
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#define NUM_LOOK_OBJECTS 50 |
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|
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struct MapCell |
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{ |
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UUID player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
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int count; /* This is really darkness in the map1 command */ |
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uint16 faces[MAP_LAYERS]; |
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uint16 smooth[MAP_LAYERS]; |
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unsigned char stat_hp; // health of something in this space, or 0 |
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unsigned char flags; |
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}; |
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|
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/* This basically defines the largest size an |
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* archetype may be - it is used for allocation of |
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* some structures, as well as determining how far |
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* we should look for the heads of big images. |
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*/ |
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#define MAX_HEAD_OFFSET 8 |
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|
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#define MAX_CLIENT_X (MAP_CLIENT_X + MAX_HEAD_OFFSET) |
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#define MAX_CLIENT_Y (MAP_CLIENT_Y + MAX_HEAD_OFFSET) |
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|
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struct Map |
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{ |
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struct MapCell cells[MAX_CLIENT_X][MAX_CLIENT_Y]; |
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}; |
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|
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/* True max is 16383 given current map compaction method */ |
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# define MAXANIMNUM 2000 |
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|
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struct statsinfo |
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{ |
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char *range, *title; |
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}; |
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|
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/* This contains basic information on the socket structure. status is its |
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* current state. we set up our on buffers for sending/receiving, so we can |
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* handle some higher level functions. fd is the actual file descriptor we |
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* are using. |
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*/ |
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|
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enum Sock_Status { Ns_Add, Ns_Dead }; |
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|
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/* Only one map mode can actually be used, so lets make it a switch |
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* instead of having a bunch of different fields that needed to |
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* get toggled. |
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*/ |
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enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
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|
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/* The following is the setup for a ring buffer for storing outbut |
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* data that the OS can't handle right away. |
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*/ |
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|
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struct Buffer |
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{ |
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char data[SOCKETBUFSIZE]; |
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int start; |
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int len; |
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}; |
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|
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// a handler for a specific type of packet |
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enum { |
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PF_PLAYER = 0x01, // must have valid player |
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PF_IMMEDIATE = 0x02, // TODO: hack, can be executed immediately |
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PF_PLAYING = 0x04, // must be in playing state |
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}; |
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|
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struct packet_type |
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{ |
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const char *name; |
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void *cb; |
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int flags; |
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}; |
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|
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struct command |
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{ |
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tstamp stamp; |
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const packet_type *handler; |
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char *data; |
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int datalen; |
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|
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command (tstamp stamp, const packet_type *handler, char *data, int datalen) |
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: stamp (stamp), handler (handler), data (data), datalen (datalen) |
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{ |
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} |
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}; |
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|
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/* how many times we are allowed to give the wrong password before being kicked. */ |
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#define MAX_PASSWORD_FAILURES 5 |
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|
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ACC_CLASS (client) // should become player when newsocket is a baseclass of player |
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struct client : zero_initialised, attachable_base |
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{ |
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enum Sock_Status status; |
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int ACC (RW, fd); |
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unsigned int inbuf_len; // number of bytes valid in inbuf |
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struct Map lastmap; |
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size_t faces_sent_len; /* This is the number of elements allocated in faces_sent[] */ |
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uint8 *faces_sent; /* This is a bitmap on sent face status */ |
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uint8 anims_sent[MAXANIMNUM]; |
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struct statsinfo stats; |
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|
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char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
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uint8 ACC (RW, password_fails); /* how many times the player has failed to give the right password */ |
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Buffer outputbuffer; /* For undeliverable data */ |
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|
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bool ACC (RW, facecache); /* If true, client is caching images */ |
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bool ACC (RW, sent_scroll); |
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bool ACC (RW, sound); /* does the client want sound */ |
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bool ACC (RW, exp64); /* Client wants 64 bit exp data, as well as skill data */ |
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bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
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bool ACC (RW, plugincmd); /* CF+ extend the protocol through a plug-in */ |
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bool ACC (RW, mapinfocmd); /* CF+ return map info and send map change info */ |
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bool ACC (RW, extcmd); /* CF+ call into extensions/plugins */ |
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bool ACC (RW, extmap); /* CF+ extend map comamnd with extra data */ |
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bool ACC (RW, buggy_mapscroll); /* CF+ client crashes on large mapscrolls */ |
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bool ACC (RW, darkness); /* True if client wants darkness information */ |
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bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
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bool ACC (RW, update_look); /* If true, we need to send the look window */ |
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bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
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/* used to arrange text in books, scrolls, or scripted dialogs */ |
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bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
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bool ACC (RW, ext_mapinfos); /* If true client accept additionnal info on maps */ |
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/* Below are flags for extedend infos to pass to client |
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* with S->C mapextended command */ |
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bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */ |
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|
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uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
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uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
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enum MapMode mapmode; /* Type of map commands the client wants. */ |
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uint16 ACC (RW, look_position); /* start of drawing of look window */ |
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uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
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uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
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uint8 ACC (RW, faceset); /* Set the client is using, default 0 */ |
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|
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maptile *ACC (RW, current_map); // CF+ last/current player map |
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int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
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char ACC (RW, version)[64]; // CF+ client name/version |
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|
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// if we get an incomplete packet, this is used to hold the data. |
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// we add 2 byte for the header, one for the trailing 0 byte |
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uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
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player *ACC (RO, pl);//TODO should not be here, preferably |
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|
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int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
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|
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client (int fd, const char *from_ip); |
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~client (); |
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void destroy (); |
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|
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iw cmd_ev; void cmd_cb (iw &w); |
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iow socket_ev; void socket_cb (iow &w, int got); |
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|
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std::deque< command, slice_allocator<command> > cmd_queue; |
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|
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// resets movement state |
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bool may_execute (const packet_type *pkt) const; |
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void execute (const packet_type *pkt, char *data, int datalen); |
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|
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void queue_command (packet_type *handler, char *data, int datalen); |
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bool handle_command (); |
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void reset_state (); |
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|
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bool handle_packet (); |
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int next_packet (); // returns length of packet or 0 |
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void skip_packet (int len); // we have processed the packet, skip it |
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|
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void flush (); |
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void write_outputbuffer (); |
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void send (void *buf_, int len); |
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|
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void send_packet (const char *buf); |
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void send_packet (const char *buf, int len); |
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void send_packet_printf (const char *format, ...); |
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void send_packet (packet &sl); |
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}; |
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|
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#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
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( ((__type)>0) &&\ |
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((__sockPtr)->has_readable_type) && \ |
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((__sockPtr)->supported_readables & (1<<(__type))) ) |
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|
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/* Bitmask for the faces_sent[] array - what |
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* portion of the face have we sent? |
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*/ |
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#define NS_FACESENT_FACE 0x1 |
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#define NS_FACESENT_SMOOTH 0x2 |
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|
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/* Constants in the form EMI_ is for extended map infos. |
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* Even if the client select the additionnal infos it wants |
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* on the map, there may exist cases where this whole info |
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* is not given in one buch but in separate bunches. This |
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* is done performance reasons (imagine some info related to |
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* a visible object and another info related to a 4 square |
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* width and height area). At the begin of an extended info packet |
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* is a bit field. A bit is activated for each extended info |
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* present in the data |
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*/ |
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|
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/* Meanings: |
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* EMI_NOREDRAW Take extended infos into account but don't redraw, |
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* some additionnal datas will follow in a new packet |
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* EMI_SMOOTH Datas about smoothing |
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*/ |
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#define EMI_NOREDRAW 0x01 |
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#define EMI_SMOOTH 0x02 |
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|
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/* this last one says the bitfield continue un next byte |
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* There may be several on contiguous bytes. So there is 7 |
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* actual bits used per byte, and the number of bytes |
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* is not fixed in protocol |
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*/ |
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#define EMI_HASMOREBITS 0x80 |
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|
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#define FACE_TYPES 1 |
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#define PNG_FACE_INDEX 0 |
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|
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#define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
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#define VERSION_SC 1027 |
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#define VERSION_INFO "Crossfire+ Server" |
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|
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typedef unordered_vector<client *> sockvec; |
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|
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extern sockvec clients; |
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extern int nrofpixmaps; //TODO: hrmpf, should go |
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|
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#endif |
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|
