1 | /* |
1 | /* |
2 | CrossFire, A Multiplayer game for the X Window System |
2 | CrossFire, A Multiplayer game for the X Window System |
3 | |
3 | |
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4 | Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
4 | Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | Copyright (C) 1992 Frank Tore Johansen |
6 | Copyright (C) 1992 Frank Tore Johansen |
6 | |
7 | |
7 | This program is free software; you can redistribute it and/or modify |
8 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by |
9 | it under the terms of the GNU General Public License as published by |
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23 | |
24 | |
24 | #ifndef CLIENT_H |
25 | #ifndef CLIENT_H |
25 | #define CLIENT_H |
26 | #define CLIENT_H |
26 | |
27 | |
27 | #include <deque> |
28 | #include <deque> |
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29 | #include <bitset> |
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30 | #include <tr1/unordered_set> |
28 | |
31 | |
29 | // (possibly) max. number of objects "per page" in the ground container |
32 | // (possibly) max. number of objects "per page" in the ground container |
30 | #define NUM_LOOK_OBJECTS 50 |
33 | #define FLOORBOX_PAGESIZE 50 |
31 | |
34 | |
32 | struct MapCell |
35 | struct MapCell |
33 | { |
36 | { |
34 | UUID player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
37 | UUID player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
35 | int count; /* This is really darkness in the map1 command */ |
38 | int count; /* This is really darkness in the map1 command */ |
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66 | * current state. we set up our on buffers for sending/receiving, so we can |
69 | * current state. we set up our on buffers for sending/receiving, so we can |
67 | * handle some higher level functions. fd is the actual file descriptor we |
70 | * handle some higher level functions. fd is the actual file descriptor we |
68 | * are using. |
71 | * are using. |
69 | */ |
72 | */ |
70 | |
73 | |
71 | enum Sock_Status { Ns_Add, Ns_Dead }; |
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72 | |
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73 | /* Only one map mode can actually be used, so lets make it a switch |
74 | /* Only one map mode can actually be used, so lets make it a switch |
74 | * instead of having a bunch of different fields that needed to |
75 | * instead of having a bunch of different fields that needed to |
75 | * get toggled. |
76 | * get toggled. |
76 | */ |
77 | */ |
77 | enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
78 | enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
78 | |
79 | |
79 | /* The following is the setup for a ring buffer for storing outbut |
80 | /* The following is the setup for a ring buffer for storing output |
80 | * data that the OS can't handle right away. |
81 | * data that the OS can't handle right away. |
81 | */ |
82 | */ |
82 | |
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83 | struct Buffer |
83 | struct Buffer |
84 | { |
84 | { |
85 | char data[SOCKETBUFSIZE]; |
85 | char data[SOCKETBUFSIZE]; |
86 | int start; |
86 | int start; |
87 | int len; |
87 | int len; |
88 | }; |
88 | }; |
89 | |
89 | |
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90 | // states the socket can be in |
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91 | enum { |
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92 | ST_DEAD, // socket is dead |
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93 | ST_SETUP, // initial handshake / setup / login |
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94 | ST_PLAYING, // logged in an playing |
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95 | ST_CUSTOM, // waiting for custom reply |
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96 | |
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97 | ST_CHANGE_CLASS, |
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98 | ST_GET_PARTY_PASSWORD, |
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99 | }; |
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100 | |
90 | // a handler for a specific type of packet |
101 | // a handler for a specific type of packet |
91 | enum { |
102 | enum { |
92 | PF_PLAYER = 0x01, // must have valid player |
103 | PF_PLAYER = 0x01, // must have valid player / will by synchronised |
93 | PF_IMMEDIATE = 0x02, // TODO: hack, can be executed immediately |
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94 | PF_PLAYING = 0x04, // must be in playing state |
104 | PF_PLAYING = 0x02, // must be in playing state |
95 | }; |
105 | }; |
96 | |
106 | |
97 | struct packet_type |
107 | struct packet_type |
98 | { |
108 | { |
99 | const char *name; |
109 | const char *name; |
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106 | tstamp stamp; |
116 | tstamp stamp; |
107 | const packet_type *handler; |
117 | const packet_type *handler; |
108 | char *data; |
118 | char *data; |
109 | int datalen; |
119 | int datalen; |
110 | |
120 | |
111 | command (tstamp stamp, const packet_type *handler, char *data, int datalen) |
121 | ~command () |
112 | : stamp (stamp), handler (handler), data (data), datalen (datalen) |
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113 | { |
122 | { |
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123 | sfree<char> (data, datalen + 1); |
114 | } |
124 | } |
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125 | }; |
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126 | |
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127 | struct refitem |
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128 | { |
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129 | object_ptr op; |
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130 | }; |
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131 | |
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132 | // this represents a container on the client side. |
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133 | // right now, there are only ever two of them: |
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134 | // the inventory and the floor/open container |
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135 | //TODO: unused as of yet |
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136 | struct client_container : vector< refitem, slice_allocator<refitem> > |
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137 | { |
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138 | client *ns; |
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139 | enum { CC_NONE, CC_INVENTORY, CC_MAPSPACE, CC_CONTAINER } type; |
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140 | |
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141 | bool item_changed; // one of the items in here possibly changed |
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142 | |
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143 | // for mapspace and container |
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144 | int x, y; |
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145 | maptile *map; |
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146 | |
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147 | // for container |
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148 | object *env; |
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149 | |
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150 | client_container (client *ns) |
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151 | : ns (ns), type (CC_NONE) { } |
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152 | |
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153 | tag_t tag () const; |
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154 | |
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155 | inline iterator merge_item (iterator i, object *op); |
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156 | |
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157 | void clear (); |
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158 | void update (); |
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159 | |
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160 | void set_mapspace (maptile *map, int x, int y); |
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161 | void set_container (object *env); |
115 | }; |
162 | }; |
116 | |
163 | |
117 | /* how many times we are allowed to give the wrong password before being kicked. */ |
164 | /* how many times we are allowed to give the wrong password before being kicked. */ |
118 | #define MAX_PASSWORD_FAILURES 5 |
165 | #define MAX_PASSWORD_FAILURES 5 |
119 | |
166 | |
120 | ACC_CLASS (client) // should become player when newsocket is a baseclass of player |
167 | INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player |
121 | struct client : zero_initialised, attachable_base |
168 | struct client : zero_initialised, attachable |
122 | { |
169 | { |
123 | enum Sock_Status status; |
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124 | int ACC (RW, fd); |
170 | int ACC (RW, fd); |
125 | unsigned int inbuf_len; // number of bytes valid in inbuf |
171 | unsigned int inbuf_len; // number of bytes valid in inbuf |
126 | struct Map lastmap; |
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127 | size_t faces_sent_len; /* This is the number of elements allocated in faces_sent[] */ |
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128 | uint8 *faces_sent; /* This is a bitmap on sent face status */ |
172 | uint8 *faces_sent; // This is a bitmap on sent face status |
129 | uint8 anims_sent[MAXANIMNUM]; |
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130 | struct statsinfo stats; |
173 | statsinfo stats; |
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174 | int ACC (RO, active); |
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175 | |
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176 | client_container cc_inv, cc_other; |
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177 | Buffer outputbuffer; |
131 | |
178 | |
132 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
179 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
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180 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
133 | uint8 ACC (RW, password_fails); /* how many times the player has failed to give the right password */ |
181 | uint8 ACC (RW, password_fails); /* how many times the player has failed to give the right password */ |
134 | Buffer outputbuffer; /* For undeliverable data */ |
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135 | |
182 | |
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183 | bool ACC (RW, afk); /* player is afk */ |
136 | bool ACC (RW, facecache); /* If true, client is caching images */ |
184 | bool ACC (RW, facecache); /* If true, client is caching images */ |
137 | bool ACC (RW, sent_scroll); |
185 | bool ACC (RW, sent_scroll); |
138 | bool ACC (RW, sound); /* does the client want sound */ |
186 | bool ACC (RW, sound); /* does the client want sound */ |
139 | bool ACC (RW, exp64); /* Client wants 64 bit exp data, as well as skill data */ |
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140 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
187 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
141 | bool ACC (RW, plugincmd); /* CF+ extend the protocol through a plug-in */ |
188 | bool ACC (RW, plugincmd); /* CF+ extend the protocol through a plug-in */ |
142 | bool ACC (RW, mapinfocmd); /* CF+ return map info and send map change info */ |
189 | bool ACC (RW, mapinfocmd); /* CF+ return map info and send map change info */ |
143 | bool ACC (RW, extcmd); /* CF+ call into extensions/plugins */ |
190 | bool ACC (RW, extcmd); /* CF+ call into extensions/plugins */ |
144 | bool ACC (RW, extmap); /* CF+ extend map comamnd with extra data */ |
191 | bool ACC (RW, extmap); /* CF+ extend map comamnd with extra data */ |
145 | bool ACC (RW, buggy_mapscroll); /* CF+ client crashes on large mapscrolls */ |
192 | bool ACC (RW, buggy_mapscroll); /* CF+ client crashes on large mapscrolls */ |
146 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
193 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
147 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
194 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
148 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
195 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
149 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
196 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
150 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
197 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
151 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
198 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
152 | bool ACC (RW, ext_mapinfos); /* If true client accept additionnal info on maps */ |
199 | bool ACC (RW, ext_mapinfos); /* If true client accepts additional info on maps */ |
153 | /* Below are flags for extedend infos to pass to client |
200 | /* Below are flags for extedend infos to pass to client |
154 | * with S->C mapextended command */ |
201 | * with S->C mapextended command */ |
155 | bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */ |
202 | bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */ |
156 | |
203 | |
157 | uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
204 | uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
158 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
205 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
159 | enum MapMode mapmode; /* Type of map commands the client wants. */ |
206 | enum MapMode mapmode; /* Type of map commands the client wants. */ |
160 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
207 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
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162 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
209 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
163 | uint8 ACC (RW, faceset); /* Set the client is using, default 0 */ |
210 | uint8 ACC (RW, faceset); /* Set the client is using, default 0 */ |
164 | |
211 | |
165 | maptile *ACC (RW, current_map); // CF+ last/current player map |
212 | maptile *ACC (RW, current_map); // CF+ last/current player map |
166 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
213 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
167 | char ACC (RW, version)[64]; // CF+ client name/version |
214 | char ACC (RW, version)[64]; // CF+ client name/version |
168 | |
215 | |
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216 | player_ptr ACC (RO, pl); |
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217 | |
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218 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
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219 | |
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220 | void do_destroy (); |
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221 | void gather_callbacks (AV *&callbacks, event_type event) const; |
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222 | |
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223 | iw cmd_ev; void cmd_cb (iw &w); |
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224 | iow socket_ev; void socket_cb (iow &w, int got); |
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225 | |
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226 | std::deque< command, slice_allocator<command> > cmd_queue; |
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227 | |
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228 | // large structures at the end please |
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229 | struct Map lastmap; |
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230 | std::bitset<MAXANIMNUM> anims_sent; |
169 | // if we get an incomplete packet, this is used to hold the data. |
231 | // if we get an incomplete packet, this is used to hold the data. |
170 | // we add 2 byte for the header, one for the trailing 0 byte |
232 | // we add 2 byte for the header, one for the trailing 0 byte |
171 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
233 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
172 | player *ACC (RO, pl);//TODO should not be here, preferably |
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173 | |
234 | |
174 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
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175 | |
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176 | client (int fd, const char *from_ip); |
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177 | ~client (); |
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178 | void destroy (); |
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179 | |
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180 | iw cmd_ev; void cmd_cb (iw &w); |
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181 | iow socket_ev; void socket_cb (iow &w, int got); |
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182 | |
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183 | std::deque< command, slice_allocator<command> > cmd_queue; |
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184 | |
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185 | // those should probably be client methods |
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186 | bool may_execute (const packet_type *pkt) const; |
235 | bool may_execute (const packet_type *pkt) const; |
187 | void execute (const packet_type *pkt, char *data, int datalen); |
236 | void execute (const packet_type *pkt, char *data, int datalen); |
188 | |
237 | |
189 | void queue_command (packet_type *handler, char *data, int datalen); |
238 | void queue_command (packet_type *handler, char *data, int datalen); |
190 | bool handle_command (); |
239 | MTH bool handle_command (); |
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240 | // resets movement state |
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241 | MTH void reset_state (); |
191 | |
242 | |
192 | bool handle_packet (); |
243 | MTH bool handle_packet (); |
193 | int next_packet (); // returns length of packet or 0 |
244 | int next_packet (); // returns length of packet or 0 |
194 | void skip_packet (int len); // we have processed the packet, skip it |
245 | void skip_packet (int len); // we have processed the packet, skip it |
195 | |
246 | |
196 | void flush (); |
247 | MTH void flush (); |
197 | void write_outputbuffer (); |
248 | MTH void write_outputbuffer (); |
198 | void send (void *buf_, int len); |
249 | void send (void *buf_, int len); |
199 | |
250 | |
200 | void send_packet (const char *buf); |
251 | void send_packet (const char *buf); |
201 | void send_packet (const char *buf, int len); |
252 | void send_packet (const char *buf, int len); |
202 | void send_packet_printf (const char *format, ...); |
253 | void send_packet_printf (const char *format, ...); |
203 | void send_packet (packet &sl); |
254 | void send_packet (packet &sl); |
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255 | |
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256 | // called when something under the player changes |
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257 | MTH void floorbox_update () { update_look = 1; } |
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258 | // called when the player has been moved |
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259 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
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260 | |
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261 | MTH static client *create (int fd, const char *peername); |
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262 | |
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263 | protected: |
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264 | client (int fd, const char *from_ip); |
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265 | ~client (); |
204 | }; |
266 | }; |
205 | |
267 | |
206 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
268 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
207 | ( ((__type)>0) &&\ |
269 | ( ((__type)>0) &&\ |
208 | ((__sockPtr)->has_readable_type) && \ |
270 | ((__sockPtr)->has_readable_type) && \ |
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245 | |
307 | |
246 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
308 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
247 | #define VERSION_SC 1027 |
309 | #define VERSION_SC 1027 |
248 | #define VERSION_INFO "Crossfire+ Server" |
310 | #define VERSION_INFO "Crossfire+ Server" |
249 | |
311 | |
250 | typedef unordered_vector<client *> sockvec; |
312 | typedef object_vector<client, &client::active> sockvec; |
251 | |
313 | |
252 | extern sockvec clients; |
314 | extern sockvec clients; |
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315 | |
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316 | #define for_all_clients(var) \ |
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317 | for (int _i = 0; _i < clients.size (); ++_i) \ |
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318 | declvar (client *, var, clients [_i]) |
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319 | |
253 | extern int nrofpixmaps; //TODO: hrmpf, should go |
320 | extern int nrofpixmaps; //TODO: hrmpf, should go |
254 | |
321 | |
255 | #endif |
322 | #endif |
256 | |
323 | |