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 |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. |
11 | * (at your option) any later version. |
11 | |
12 | * |
12 | This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
16 | |
17 | * |
17 | You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software |
19 | * along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | |
21 | * |
21 | The author can be reached via e-mail to crossfire@schmorp.de |
22 | * The author can be reached via e-mail to crossfire@schmorp.de |
22 | */ |
23 | */ |
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> |
28 | #include <bitset> |
29 | #include <bitset> |
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30 | #include <tr1/unordered_set> |
29 | |
31 | |
30 | // (possibly) max. number of objects "per page" in the ground container |
32 | // (possibly) max. number of objects "per page" in the ground container |
31 | #define FLOORBOX_PAGESIZE 50 |
33 | #define FLOORBOX_PAGESIZE 50 |
32 | |
34 | |
33 | struct MapCell |
35 | struct MapCell |
34 | { |
36 | { |
35 | 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 |
36 | int count; /* This is really darkness in the map1 command */ |
38 | int count; /* This is really darkness in the map1 command */ |
37 | uint16 faces[MAP_LAYERS]; |
39 | faceidx faces[MAP_LAYERS]; |
38 | uint16 smooth[MAP_LAYERS]; |
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39 | unsigned char stat_hp; // health of something in this space, or 0 |
40 | unsigned char stat_hp; // health of something in this space, or 0 |
40 | unsigned char flags; |
41 | unsigned char flags; |
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42 | uint8_t smooth[MAP_LAYERS]; |
41 | }; |
43 | }; |
42 | |
44 | |
43 | /* This basically defines the largest size an |
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44 | * archetype may be - it is used for allocation of |
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45 | * some structures, as well as determining how far |
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46 | * we should look for the heads of big images. |
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47 | */ |
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48 | #define MAX_HEAD_OFFSET 8 |
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49 | |
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50 | #define MAX_CLIENT_X (MAP_CLIENT_X + MAX_HEAD_OFFSET) |
45 | #define MAX_CLIENT_X MAP_CLIENT_X |
51 | #define MAX_CLIENT_Y (MAP_CLIENT_Y + MAX_HEAD_OFFSET) |
46 | #define MAX_CLIENT_Y MAP_CLIENT_Y |
52 | |
47 | |
53 | struct Map |
48 | struct Map |
54 | { |
49 | { |
55 | struct MapCell cells[MAX_CLIENT_X][MAX_CLIENT_Y]; |
50 | struct MapCell cells[MAX_CLIENT_X][MAX_CLIENT_Y]; |
56 | }; |
51 | }; |
57 | |
52 | |
58 | /* True max is 16383 given current map compaction method */ |
53 | /* True max is 16383 given current map compaction method */ |
59 | # define MAXANIMNUM 2000 |
54 | #define MAXANIMNUM 10000 |
60 | |
55 | |
61 | struct statsinfo |
56 | struct statsinfo |
62 | { |
57 | { |
63 | char *range, *title; |
58 | char *range, *title; |
64 | }; |
59 | }; |
… | |
… | |
67 | * current state. we set up our on buffers for sending/receiving, so we can |
62 | * current state. we set up our on buffers for sending/receiving, so we can |
68 | * handle some higher level functions. fd is the actual file descriptor we |
63 | * handle some higher level functions. fd is the actual file descriptor we |
69 | * are using. |
64 | * are using. |
70 | */ |
65 | */ |
71 | |
66 | |
72 | enum Sock_Status { Ns_Add, Ns_Dead }; |
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73 | |
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74 | /* Only one map mode can actually be used, so lets make it a switch |
67 | /* Only one map mode can actually be used, so lets make it a switch |
75 | * instead of having a bunch of different fields that needed to |
68 | * instead of having a bunch of different fields that needed to |
76 | * get toggled. |
69 | * get toggled. |
77 | */ |
70 | */ |
78 | enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
71 | enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
79 | |
72 | |
80 | /* The following is the setup for a ring buffer for storing outbut |
73 | /* The following is the setup for a ring buffer for storing output |
81 | * data that the OS can't handle right away. |
74 | * data that the OS can't handle right away. |
82 | */ |
75 | */ |
83 | |
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84 | struct Buffer |
76 | struct Buffer |
85 | { |
77 | { |
86 | char data[SOCKETBUFSIZE]; |
78 | char data[SOCKETBUFSIZE]; |
87 | int start; |
79 | int start; |
88 | int len; |
80 | int len; |
89 | }; |
81 | }; |
90 | |
82 | |
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83 | // states the socket can be in |
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84 | enum { |
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85 | ST_DEAD, // socket is dead |
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86 | ST_SETUP, // initial handshake / setup / login |
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87 | ST_PLAYING, // logged in an playing |
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88 | ST_CUSTOM, // waiting for custom reply |
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89 | |
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90 | ST_CHANGE_CLASS, |
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91 | ST_GET_PARTY_PASSWORD, |
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92 | }; |
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93 | |
91 | // a handler for a specific type of packet |
94 | // a handler for a specific type of packet |
92 | enum { |
95 | enum { |
93 | PF_PLAYER = 0x01, // must have valid player / will by synchronised |
96 | PF_PLAYER = 0x01, // must have valid player / will by synchronised |
94 | PF_PLAYING = 0x02, // must be in playing state |
97 | PF_PLAYING = 0x02, // must be in playing state |
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98 | PF_COMMAND0 = 0x04, // command starts at offset 0 |
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99 | PF_COMMAND6 = 0x08, // command starts at offset 6 |
95 | }; |
100 | }; |
96 | |
101 | |
97 | struct packet_type |
102 | struct packet_type |
98 | { |
103 | { |
99 | const char *name; |
104 | const char *name; |
… | |
… | |
112 | { |
117 | { |
113 | sfree<char> (data, datalen + 1); |
118 | sfree<char> (data, datalen + 1); |
114 | } |
119 | } |
115 | }; |
120 | }; |
116 | |
121 | |
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122 | struct refitem |
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123 | { |
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124 | object_ptr op; |
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125 | }; |
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126 | |
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127 | // this represents a container on the client side. |
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128 | // right now, there are only ever two of them: |
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129 | // the inventory and the floor/open container |
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130 | //TODO: unused as of yet |
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131 | struct client_container : vector< refitem, slice_allocator<refitem> > |
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132 | { |
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133 | client *ns; |
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134 | enum { CC_NONE, CC_INVENTORY, CC_MAPSPACE, CC_CONTAINER } type; |
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135 | |
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136 | bool item_changed; // one of the items in here possibly changed |
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137 | |
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138 | // for mapspace and container |
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139 | int x, y; |
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140 | maptile *map; |
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141 | |
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142 | // for container |
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143 | object *env; |
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144 | |
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145 | client_container (client *ns) |
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146 | : ns (ns), type (CC_NONE) { } |
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147 | |
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148 | tag_t tag () const; |
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149 | |
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150 | inline iterator merge_item (iterator i, object *op); |
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151 | |
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152 | void clear (); |
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153 | void update (); |
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154 | |
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155 | void set_mapspace (maptile *map, int x, int y); |
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156 | void set_container (object *env); |
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157 | }; |
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158 | |
117 | /* how many times we are allowed to give the wrong password before being kicked. */ |
159 | /* how many times we are allowed to give the wrong password before being kicked. */ |
118 | #define MAX_PASSWORD_FAILURES 5 |
160 | #define MAX_PASSWORD_FAILURES 5 |
119 | |
161 | |
120 | ACC_CLASS (client) // should become player when newsocket is a baseclass of player |
162 | INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player |
121 | struct client : zero_initialised, attachable_base |
163 | struct client : zero_initialised, attachable |
122 | { |
164 | { |
123 | enum Sock_Status status; |
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124 | int ACC (RW, fd); |
165 | int ACC (RW, fd); |
125 | unsigned int inbuf_len; // number of bytes valid in inbuf |
166 | unsigned int inbuf_len; // number of bytes valid in inbuf |
126 | uint8 *faces_sent; // This is a bitmap on sent face status |
167 | statsinfo stats; |
127 | struct statsinfo stats; |
168 | int ACC (RO, active); |
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169 | |
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170 | Buffer outputbuffer; |
128 | |
171 | |
129 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
172 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
130 | uint8 ACC (RW, password_fails); /* how many times the player has failed to give the right password */ |
173 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
131 | Buffer outputbuffer; |
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132 | |
174 | |
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175 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
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176 | uint16 ACC (RW, last_flags); /* fire/run on flags for last tick */ |
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177 | float ACC (RW, last_weapon_sp); /* if diff than weapon_sp, update client */ |
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178 | sint32 ACC (RW, last_weight); /* Last weight as sent to client; -1 means do not send weight */ |
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179 | sint32 ACC (RW, last_weight_limit); /* Last weight limit transmitted to client */ |
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180 | uint32 ACC (RW, last_path_attuned); /* Last spell attunment sent to client */ |
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181 | uint32 ACC (RW, last_path_repelled); /* Last spell repelled sent to client */ |
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182 | uint32 ACC (RW, last_path_denied); /* Last spell denied sent to client */ |
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183 | living ACC (RO, last_stats); /* Last stats as sent to client */ |
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184 | float ACC (RW, last_speed); /* Last speed as sent to client */ |
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185 | sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
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186 | sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
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187 | |
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188 | bool ACC (RW, afk); /* player is afk */ |
133 | bool ACC (RW, facecache); /* If true, client is caching images */ |
189 | bool ACC (RW, facecache); /* If true, client is caching images */ |
134 | bool ACC (RW, sent_scroll); |
190 | bool ACC (RW, sent_scroll); |
135 | bool ACC (RW, sound); /* does the client want sound */ |
191 | bool ACC (RW, sound); /* does the client want sound */ |
136 | bool ACC (RW, exp64); /* Client wants 64 bit exp data, as well as skill data */ |
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137 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
192 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
138 | bool ACC (RW, plugincmd); /* CF+ extend the protocol through a plug-in */ |
193 | bool ACC (RW, plugincmd); /* CF+ extend the protocol through a plug-in */ |
139 | bool ACC (RW, mapinfocmd); /* CF+ return map info and send map change info */ |
194 | bool ACC (RW, mapinfocmd); /* CF+ return map info and send map change info */ |
140 | bool ACC (RW, extcmd); /* CF+ call into extensions/plugins */ |
195 | bool ACC (RW, extcmd); /* CF+ call into extensions/plugins */ |
141 | bool ACC (RW, extmap); /* CF+ extend map comamnd with extra data */ |
196 | bool ACC (RW, extmap); /* CF+ extend map comamnd with extra data */ |
142 | bool ACC (RW, buggy_mapscroll); /* CF+ client crashes on large mapscrolls */ |
197 | bool ACC (RW, buggy_mapscroll); /* CF+ client crashes on large mapscrolls */ |
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198 | bool ACC (RW, force_face0); /* CF+ client workaround for buggy checksum calculation in gcfclient */ |
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199 | bool ACC (RW, force_bad_checksum); /* CF+ client workaround for buggy checksum calculation in gcfclient */ |
143 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
200 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
144 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
201 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
145 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
202 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
146 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
203 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
147 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
204 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
… | |
… | |
155 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
212 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
156 | enum MapMode mapmode; /* Type of map commands the client wants. */ |
213 | enum MapMode mapmode; /* Type of map commands the client wants. */ |
157 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
214 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
158 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
215 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
159 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
216 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
160 | uint8 ACC (RW, faceset); /* Set the client is using, default 0 */ |
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161 | |
217 | |
162 | maptile *ACC (RW, current_map); // CF+ last/current player map |
218 | maptile *ACC (RW, current_map); // CF+ last/current player map |
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219 | region *ACC (RW, current_region); // CF+ last/current player region |
163 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
220 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
164 | char ACC (RW, version)[64]; // CF+ client name/version |
221 | char ACC (RW, version)[64]; // CF+ client name/version |
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222 | uint8 ACC (RW, faceset); // CF+ selected faceset |
165 | |
223 | |
166 | player *ACC (RO, pl);//TODO should not be here, preferably |
224 | player_ptr ACC (RO, pl); |
167 | |
225 | |
168 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
226 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
169 | |
227 | |
170 | client (int fd, const char *from_ip); |
228 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
171 | ~client (); |
229 | faceidx ACC (RW, scrub_idx); // which face to send next |
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230 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
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231 | std::vector<faceidx> askface; // which faces have been requested by the client |
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232 | |
172 | void destroy (); |
233 | void do_destroy (); |
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234 | void gather_callbacks (AV *&callbacks, event_type event) const; |
173 | |
235 | |
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236 | iow socket_ev; void socket_cb (iow &w, int got); |
174 | iw cmd_ev; void cmd_cb (iw &w); |
237 | iw cmd_ev; void cmd_cb (iw &w); |
175 | iow socket_ev; void socket_cb (iow &w, int got); |
238 | client_container cc_inv, cc_other; |
176 | |
239 | |
177 | std::deque< command, slice_allocator<command> > cmd_queue; |
240 | std::deque< command, slice_allocator<command> > cmd_queue; |
178 | |
241 | |
179 | // resets movement state |
242 | // large structures at the end please |
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243 | struct Map lastmap; |
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244 | std::bitset<MAXANIMNUM> anims_sent; |
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245 | std::bitset<MAX_FACES> faces_sent; |
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246 | |
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247 | // if we get an incomplete packet, this is used to hold the data. |
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248 | // we add 2 byte for the header, one for the trailing 0 byte |
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249 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
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250 | |
180 | bool may_execute (const packet_type *pkt) const; |
251 | bool may_execute (const packet_type *pkt) const; |
181 | void execute (const packet_type *pkt, char *data, int datalen); |
252 | void execute (const packet_type *pkt, char *data, int datalen); |
182 | |
253 | |
183 | void queue_command (packet_type *handler, char *data, int datalen); |
254 | void queue_command (packet_type *handler, char *data, int datalen); |
184 | bool handle_command (); |
255 | MTH bool handle_command (); |
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256 | // resets movement state |
185 | void reset_state (); |
257 | MTH void reset_state (); |
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258 | // resets variable data used to send stat diffs |
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259 | MTH void reset_stats (); |
186 | |
260 | |
187 | bool handle_packet (); |
261 | MTH bool handle_packet (); |
188 | int next_packet (); // returns length of packet or 0 |
262 | int next_packet (); // returns length of packet or 0 |
189 | void skip_packet (int len); // we have processed the packet, skip it |
263 | void skip_packet (int len); // we have processed the packet, skip it |
190 | |
264 | |
191 | void flush (); |
265 | MTH void flush (); |
192 | void write_outputbuffer (); |
266 | MTH void write_outputbuffer (); |
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267 | MTH int outputbuffer_len () const { return outputbuffer.len; } |
193 | void send (void *buf_, int len); |
268 | void send (void *buf_, int len); |
194 | |
269 | |
195 | void send_packet (const char *buf); |
270 | void send_packet (const char *buf); |
196 | void send_packet (const char *buf, int len); |
271 | void send_packet (const char *buf, int len); |
197 | void send_packet_printf (const char *format, ...); |
272 | void send_packet_printf (const char *format, ...); |
198 | void send_packet (packet &sl); |
273 | void send_packet (packet &sl); |
199 | |
274 | |
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275 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
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276 | MTH void send_face (faceidx facenum); |
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277 | MTH void send_image (faceidx facenum); |
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278 | MTH void send_faces (object *ob); |
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279 | MTH void send_animation (short anim_num); |
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280 | |
200 | // called when something under the player changes |
281 | // called when something under the player changes |
201 | void floorbox_update () { update_look = 1; } |
282 | MTH void floorbox_update () { update_look = 1; } |
202 | // called when the player has been moved |
283 | // called when the player has been moved |
203 | void floorbox_reset () { look_position = 0; floorbox_update (); } |
284 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
204 | |
285 | |
205 | // large structures at the end please |
286 | MTH void tick (); // called every server tick to do housekeeping etc. |
206 | struct Map lastmap; |
287 | |
207 | std::bitset<MAXANIMNUM> anims_sent; |
288 | MTH static client *create (int fd, const char *peername); |
208 | // if we get an incomplete packet, this is used to hold the data. |
289 | |
209 | // we add 2 byte for the header, one for the trailing 0 byte |
290 | protected: |
210 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
291 | client (int fd, const char *from_ip); |
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292 | ~client (); |
211 | }; |
293 | }; |
212 | |
294 | |
213 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
295 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
214 | ( ((__type)>0) &&\ |
296 | ( ((__type)>0) &&\ |
215 | ((__sockPtr)->has_readable_type) && \ |
297 | ((__sockPtr)->has_readable_type) && \ |
216 | ((__sockPtr)->supported_readables & (1<<(__type))) ) |
298 | ((__sockPtr)->supported_readables & (1<<(__type))) ) |
217 | |
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218 | /* Bitmask for the faces_sent[] array - what |
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219 | * portion of the face have we sent? |
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220 | */ |
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221 | #define NS_FACESENT_FACE 0x1 |
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222 | #define NS_FACESENT_SMOOTH 0x2 |
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223 | |
299 | |
224 | /* Constants in the form EMI_ is for extended map infos. |
300 | /* Constants in the form EMI_ is for extended map infos. |
225 | * Even if the client select the additionnal infos it wants |
301 | * Even if the client select the additionnal infos it wants |
226 | * on the map, there may exist cases where this whole info |
302 | * on the map, there may exist cases where this whole info |
227 | * is not given in one buch but in separate bunches. This |
303 | * is not given in one buch but in separate bunches. This |
… | |
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249 | |
325 | |
250 | #define FACE_TYPES 1 |
326 | #define FACE_TYPES 1 |
251 | #define PNG_FACE_INDEX 0 |
327 | #define PNG_FACE_INDEX 0 |
252 | |
328 | |
253 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
329 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
254 | #define VERSION_SC 1027 |
330 | #define VERSION_SC 1026 |
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331 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
255 | #define VERSION_INFO "Crossfire+ Server" |
332 | #define VERSION_INFO "Crossfire+ Server" |
256 | |
333 | |
257 | typedef unordered_vector<client *> sockvec; |
334 | typedef object_vector<client, &client::active> sockvec; |
258 | |
335 | |
259 | extern sockvec clients; |
336 | extern sockvec clients; |
260 | extern int nrofpixmaps; //TODO: hrmpf, should go |
337 | |
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338 | #define for_all_clients(var) \ |
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339 | for (int _i = 0; _i < clients.size (); ++_i) \ |
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340 | declvar (client *, var, clients [_i]) |
261 | |
341 | |
262 | #endif |
342 | #endif |
263 | |
343 | |