1 | /* |
1 | /* |
2 | * CrossFire, A Multiplayer game for the X Window System |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
3 | * |
3 | * |
4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
5 | * Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
6 | * Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
7 | * |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
8 | * Crossfire TRT is free software: you can redistribute it and/or modify |
9 | * 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 |
10 | * the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation, either version 3 of the License, or |
11 | * (at your option) any later version. |
11 | * (at your option) any later version. |
12 | * |
12 | * |
13 | * 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, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
17 | * |
17 | * |
18 | * 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 |
19 | * along with this program; if not, write to the Free Software |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 | * |
20 | * |
22 | * The author can be reached via e-mail to crossfire@schmorp.de |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
23 | */ |
22 | */ |
24 | |
23 | |
25 | #ifndef CLIENT_H |
24 | #ifndef CLIENT_H |
26 | #define CLIENT_H |
25 | #define CLIENT_H |
27 | |
26 | |
… | |
… | |
32 | // (possibly) max. number of objects "per page" in the ground container |
31 | // (possibly) max. number of objects "per page" in the ground container |
33 | #define FLOORBOX_PAGESIZE 50 |
32 | #define FLOORBOX_PAGESIZE 50 |
34 | |
33 | |
35 | struct MapCell |
34 | struct MapCell |
36 | { |
35 | { |
37 | UUID player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
36 | tag_t player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
38 | int count; /* This is really darkness in the map1 command */ |
37 | int count; /* This is really darkness in the map1 command */ |
39 | faceidx faces[MAP_LAYERS]; |
38 | faceidx faces[MAP_LAYERS]; |
40 | unsigned char stat_hp; // health of something in this space, or 0 |
39 | unsigned char stat_hp; // health of something in this space, or 0 |
41 | unsigned char flags; |
40 | unsigned char flags; |
42 | uint8_t smooth[MAP_LAYERS]; |
41 | uint8_t smooth[MAP_LAYERS]; |
… | |
… | |
66 | |
65 | |
67 | /* Only one map mode can actually be used, so lets make it a switch |
66 | /* Only one map mode can actually be used, so lets make it a switch |
68 | * instead of having a bunch of different fields that needed to |
67 | * instead of having a bunch of different fields that needed to |
69 | * get toggled. |
68 | * get toggled. |
70 | */ |
69 | */ |
71 | enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
70 | enum { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
72 | |
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73 | /* The following is the setup for a ring buffer for storing output |
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74 | * data that the OS can't handle right away. |
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75 | */ |
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76 | struct Buffer |
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77 | { |
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78 | char data[SOCKETBUFSIZE]; |
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79 | int start; |
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80 | int len; |
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81 | }; |
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82 | |
71 | |
83 | // states the socket can be in |
72 | // states the socket can be in |
84 | enum { |
73 | enum { |
85 | ST_DEAD, // socket is dead |
74 | ST_DEAD, // socket is dead |
86 | ST_SETUP, // initial handshake / setup / login |
75 | ST_SETUP, // initial handshake / setup / login |
87 | ST_PLAYING, // logged in an playing |
76 | ST_PLAYING, // logged in an playing |
88 | ST_CUSTOM, // waiting for custom reply |
77 | ST_CUSTOM, // waiting for custom reply |
89 | |
78 | |
90 | ST_CHANGE_CLASS, |
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91 | ST_GET_PARTY_PASSWORD, |
79 | ST_GET_PARTY_PASSWORD, |
92 | }; |
80 | }; |
93 | |
81 | |
94 | // a handler for a specific type of packet |
82 | // a handler for a specific type of packet |
95 | enum { |
83 | enum { |
… | |
… | |
97 | PF_PLAYING = 0x02, // must be in playing state |
85 | PF_PLAYING = 0x02, // must be in playing state |
98 | PF_COMMAND0 = 0x04, // command starts at offset 0 |
86 | PF_COMMAND0 = 0x04, // command starts at offset 0 |
99 | PF_COMMAND6 = 0x08, // command starts at offset 6 |
87 | PF_COMMAND6 = 0x08, // command starts at offset 6 |
100 | }; |
88 | }; |
101 | |
89 | |
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90 | // face type.s bit 0 means "has meta info prepended" |
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91 | enum { |
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92 | FT_FACE = 0 * 2 + 0, // faces (images) |
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93 | FT_MUSIC = 1 * 2 + 1, // background music |
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94 | FT_SOUND = 2 * 2 + 1, // effects |
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95 | FT_RSRC = 3 * 2 + 0, // generic data files |
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96 | FT_NUM, |
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97 | }; |
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98 | |
102 | struct packet_type |
99 | struct packet_type |
103 | { |
100 | { |
104 | const char *name; |
101 | const char *name; |
105 | void *cb; |
102 | void *cb; |
106 | int flags; |
103 | int flags; |
… | |
… | |
117 | { |
114 | { |
118 | sfree<char> (data, datalen + 1); |
115 | sfree<char> (data, datalen + 1); |
119 | } |
116 | } |
120 | }; |
117 | }; |
121 | |
118 | |
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 | |
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159 | /* how many times we are allowed to give the wrong password before being kicked. */ |
119 | /* how many times we are allowed to give the wrong password before being kicked. */ |
160 | #define MAX_PASSWORD_FAILURES 5 |
120 | #define MAX_PASSWORD_FAILURES 5 |
161 | |
121 | |
162 | INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player |
122 | INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player |
163 | struct client : zero_initialised, attachable |
123 | struct client : zero_initialised, attachable |
164 | { |
124 | { |
165 | int ACC (RW, fd); |
125 | int ACC (RW, fd); |
166 | unsigned int inbuf_len; // number of bytes valid in inbuf |
126 | unsigned int inbuf_len; // number of bytes valid in inbuf |
167 | statsinfo stats; |
127 | statsinfo stats; |
168 | int ACC (RO, active); |
128 | object_vector_index ACC (RO, active); |
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129 | player_ptr ACC (RO, pl); |
169 | |
130 | |
170 | Buffer outputbuffer; |
131 | /* The following is the setup for a ring buffer for storing output |
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132 | * data that the OS can't handle right away. |
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133 | */ |
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134 | struct |
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135 | { |
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136 | char data[SOCKETBUFSIZE]; |
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137 | int start; |
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138 | int len; |
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139 | } outputbuffer; |
171 | |
140 | |
172 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
141 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
173 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
142 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
174 | |
143 | |
175 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
144 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
… | |
… | |
183 | living ACC (RO, last_stats); /* Last stats as sent to client */ |
152 | living ACC (RO, last_stats); /* Last stats as sent to client */ |
184 | float ACC (RW, last_speed); /* Last speed as sent to client */ |
153 | float ACC (RW, last_speed); /* Last speed as sent to client */ |
185 | sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
154 | sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
186 | sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
155 | sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
187 | |
156 | |
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157 | bool ACC (RW, force_face0); // client workaround for buggy checksum calculation in gcfclient |
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158 | bool ACC (RW, force_bad_checksum); // client workaround for buggy checksum calculation in gcfclient |
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159 | bool ACC (RW, force_image_newmap); // client workaround for client not redrawing map on image upload |
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160 | bool ACC (RW, enable_bg_scrub); // client workaround, gcfclient becomes unusable if you send it images |
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161 | |
188 | bool ACC (RW, afk); /* player is afk */ |
162 | bool ACC (RW, afk); /* player is afk */ |
189 | bool ACC (RW, facecache); /* If true, client is caching images */ |
163 | bool ACC (RW, facecache); /* If true, client is caching images */ |
190 | bool ACC (RW, sent_scroll); |
164 | bool ACC (RW, sent_scroll); |
191 | bool ACC (RW, sound); /* does the client want sound */ |
165 | bool ACC (RW, sound); /* does the client want sound */ |
192 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
166 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
193 | bool ACC (RW, plugincmd); /* CF+ extend the protocol through a plug-in */ |
167 | bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
194 | bool ACC (RW, mapinfocmd); /* CF+ return map info and send map change info */ |
168 | bool ACC (RW, mapinfocmd); // return map info and send map change info |
195 | bool ACC (RW, extcmd); /* CF+ call into extensions/plugins */ |
169 | uint8_t ACC (RW, extcmd); // call into extensions/plugins |
196 | bool ACC (RW, extmap); /* CF+ extend map comamnd with extra data */ |
170 | bool ACC (RW, extmap); // extend map comamnd with extra data |
197 | bool ACC (RW, buggy_mapscroll); /* CF+ client crashes on large mapscrolls */ |
171 | bool ACC (RW, buggy_mapscroll); // client crashes on large mapscrolls |
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 */ |
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200 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
172 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
201 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
173 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
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174 | uint8_t ACC (RW, fxix); // client implements fx and ix (face|image extended) commands |
202 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
175 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
203 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
176 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
204 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
177 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
205 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
178 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
206 | bool ACC (RW, ext_mapinfos); /* If true client accepts additional info on maps */ |
179 | bool ACC (RW, ext_mapinfos); /* If true client accepts additional info on maps */ |
207 | /* Below are flags for extedend infos to pass to client |
180 | /* Below are flags for extedend infos to pass to client |
208 | * with S->C mapextended command */ |
181 | * with S->C mapextended command */ |
209 | bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */ |
182 | bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */ |
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183 | bool ACC (RW, smoothing); // trt-style smoothing |
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184 | bool ACC (RW, can_msg); // trt-style text messages |
210 | |
185 | |
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186 | bool ACC (RW, force_newmap); // force a newmap before next map update |
211 | uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
187 | uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
212 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
188 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
213 | enum MapMode mapmode; /* Type of map commands the client wants. */ |
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214 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
189 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
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190 | uint16 ACC (RW, mss); // likely tcp maximum segment size |
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191 | uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ |
215 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
192 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
216 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
193 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
217 | |
194 | |
218 | maptile *ACC (RW, current_map); // CF+ last/current player map |
195 | maptile *ACC (RW, current_map); // CF+ last/current player map |
219 | region *ACC (RW, current_region); // CF+ last/current player region |
196 | region *ACC (RW, current_region); // CF+ last/current player region |
220 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
197 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
221 | char ACC (RW, version)[64]; // CF+ client name/version |
198 | shstr ACC (RW, version); // CF+ client name/version |
222 | uint8 ACC (RW, faceset); // CF+ selected faceset |
199 | uint8 ACC (RW, faceset); // CF+ selected faceset |
223 | |
200 | |
224 | player_ptr ACC (RO, pl); |
201 | tstamp ACC (RW, last_send); // last data send on socket. |
225 | |
202 | |
226 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
203 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
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204 | int ACC (RW, outq); // current socket outq length, or 0 if indeterminable |
227 | |
205 | |
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206 | int ACC (RW, rate_avail); // current rate balance |
228 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
207 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
229 | std::vector<faceidx> askface; // which faces have been requested by the client |
208 | faceidx ACC (RW, scrub_idx); // which face to send next |
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209 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
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210 | |
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211 | struct ixsend { |
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212 | int16_t pri; // unused |
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213 | faceidx idx; |
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214 | uint32_t ofs; // if != 0, need to send remaining bytes of partial_face |
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215 | }; |
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216 | std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix |
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217 | |
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218 | std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx |
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219 | MTH void flush_fx (); // send fx if required |
230 | |
220 | |
231 | void do_destroy (); |
221 | void do_destroy (); |
232 | void gather_callbacks (AV *&callbacks, event_type event) const; |
222 | void gather_callbacks (AV *&callbacks, event_type event) const; |
233 | |
223 | |
234 | iow socket_ev; void socket_cb (iow &w, int got); |
224 | iow socket_ev; void socket_cb (iow &w, int got); |
235 | iw cmd_ev; void cmd_cb (iw &w); |
225 | iw cmd_ev; void cmd_cb (iw &w); |
236 | client_container cc_inv, cc_other; |
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237 | |
226 | |
238 | std::deque< command, slice_allocator<command> > cmd_queue; |
227 | std::deque< command, slice_allocator<command> > cmd_queue; |
239 | |
228 | |
240 | // large structures at the end please |
229 | // large structures at the end please |
241 | struct Map lastmap; |
230 | struct Map lastmap; |
242 | std::bitset<MAXANIMNUM> anims_sent; |
231 | std::bitset<MAXANIMNUM> anims_sent; |
243 | std::bitset<MAX_FACES> faces_sent; |
232 | std::bitset<MAX_FACES> faces_sent; |
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233 | std::bitset<FT_NUM> fx_want; |
244 | |
234 | |
245 | // if we get an incomplete packet, this is used to hold the data. |
235 | // if we get an incomplete packet, this is used to hold the data. |
246 | // we add 2 byte for the header, one for the trailing 0 byte |
236 | // we add 2 byte for the header, one for the trailing 0 byte |
247 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
237 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
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238 | |
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239 | enum { MSG_BUF_SIZE = 80, MSG_BUF_COUNT = 10 }; |
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240 | struct msg_buf |
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241 | { |
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242 | tick_t expire; |
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243 | int len; |
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244 | int count; |
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245 | char msg[MSG_BUF_SIZE]; |
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246 | } msgbuf[MSG_BUF_COUNT]; |
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247 | |
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248 | MTH bool msg_suppressed (const char *msg); |
248 | |
249 | |
249 | bool may_execute (const packet_type *pkt) const; |
250 | bool may_execute (const packet_type *pkt) const; |
250 | void execute (const packet_type *pkt, char *data, int datalen); |
251 | void execute (const packet_type *pkt, char *data, int datalen); |
251 | |
252 | |
252 | void queue_command (packet_type *handler, char *data, int datalen); |
253 | void queue_command (packet_type *handler, char *data, int datalen); |
… | |
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269 | void send_packet (const char *buf, int len); |
270 | void send_packet (const char *buf, int len); |
270 | void send_packet_printf (const char *format, ...); |
271 | void send_packet_printf (const char *format, ...); |
271 | void send_packet (packet &sl); |
272 | void send_packet (packet &sl); |
272 | |
273 | |
273 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
274 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
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275 | |
274 | MTH void send_face (faceidx facenum); |
276 | MTH void send_face (faceidx facenum, int pri = 0); |
275 | MTH void send_image (faceidx facenum); |
277 | MTH void send_image (faceidx facenum); |
276 | MTH void send_faces (object *ob); |
278 | MTH void send_faces (object *ob); |
277 | MTH void send_animation (short anim_num); |
279 | MTH void send_animation (short anim_num); |
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280 | void send_msg (int color, const char *type, const char *msg); |
278 | |
281 | |
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282 | MTH void play_sound (faceidx sound, int dx = 0, int dy = 0); |
279 | // called when something under the player changes |
283 | // called when something under the player changes |
280 | MTH void floorbox_update () { update_look = 1; } |
284 | MTH void floorbox_update () { update_look = 1; } |
281 | // called when the player has been moved |
285 | // called when the player has been moved |
282 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
286 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
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287 | |
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288 | MTH void tick (); // called every server tick to do housekeeping etc. |
283 | |
289 | |
284 | MTH static client *create (int fd, const char *peername); |
290 | MTH static client *create (int fd, const char *peername); |
285 | |
291 | |
286 | protected: |
292 | protected: |
287 | client (int fd, const char *from_ip); |
293 | client (int fd, const char *from_ip); |
… | |
… | |
323 | #define PNG_FACE_INDEX 0 |
329 | #define PNG_FACE_INDEX 0 |
324 | |
330 | |
325 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
331 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
326 | #define VERSION_SC 1026 |
332 | #define VERSION_SC 1026 |
327 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
333 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
328 | #define VERSION_INFO "Crossfire+ Server" |
334 | #define VERSION_INFO "Crossfire TRT Server" |
329 | |
335 | |
330 | typedef object_vector<client, &client::active> sockvec; |
336 | typedef object_vector<client, &client::active> sockvec; |
331 | |
337 | |
332 | extern sockvec clients; |
338 | extern sockvec clients; |
333 | |
339 | |
334 | #define for_all_clients(var) \ |
340 | #define for_all_clients(var) \ |
335 | for (int _i = 0; _i < clients.size (); ++_i) \ |
341 | for (int _i = 0; _i < clients.size (); ++_i) \ |
336 | declvar (client *, var, clients [_i]) |
342 | statementvar (client *, var, clients [_i]) |
337 | |
343 | |
338 | #endif |
344 | #endif |
339 | |
345 | |