src/clientserver.h

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #ifndef CLIENTSERVER_HEADER
  21 #define CLIENTSERVER_HEADER
  22
  23 #include "utility.h"
  24
  25 /*
  26         changes by PROTOCOL_VERSION:
  27
  28         PROTOCOL_VERSION 3:
  29                 Base for writing changes here
  30         PROTOCOL_VERSION 4:
  31                 Add TOCLIENT_TOOLDEF
  32                 Add TOCLIENT_TEXTURES
  33                 Add TOCLIENT_NODEDEF
  34 */
  35
  36 #define PROTOCOL_VERSION 4
  37
  38 #define PROTOCOL_ID 0x4f457403
  39
  40 #define PASSWORD_SIZE 28       // Maximum password length. Allows for
  41                                // base64-encoded SHA-1 (27+\0).
  42
  43 enum ToClientCommand
  44 {
  45         TOCLIENT_INIT = 0x10,
  46         /*
  47                 Server's reply to TOSERVER_INIT.
  48                 Sent second after connected.
  49
  50                 [0] u16 TOSERVER_INIT
  51                 [2] u8 deployed version
  52                 [3] v3s16 player's position + v3f(0,BS/2,0) floatToInt'd
  53                 [12] u64 map seed (new as of 2011-02-27)
  54
  55                 NOTE: The position in here is deprecated; position is
  56                       explicitly sent afterwards
  57         */
  58
  59         TOCLIENT_BLOCKDATA = 0x20, //TODO: Multiple blocks
  60         TOCLIENT_ADDNODE = 0x21,
  61         TOCLIENT_REMOVENODE = 0x22,
  62
  63         TOCLIENT_PLAYERPOS = 0x23, // Obsolete
  64         /*
  65                 [0] u16 command
  66                 // Followed by an arbitary number of these:
  67                 // Number is determined from packet length.
  68                 [N] u16 peer_id
  69                 [N+2] v3s32 position*100
  70                 [N+2+12] v3s32 speed*100
  71                 [N+2+12+12] s32 pitch*100
  72                 [N+2+12+12+4] s32 yaw*100
  73         */
  74
  75         TOCLIENT_PLAYERINFO = 0x24,
  76         /*
  77                 [0] u16 command
  78                 // Followed by an arbitary number of these:
  79                 // Number is determined from packet length.
  80                 [N] u16 peer_id
  81                 [N] char[20] name
  82         */
  83
  84         TOCLIENT_OPT_BLOCK_NOT_FOUND = 0x25, // Obsolete
  85
  86         TOCLIENT_SECTORMETA = 0x26, // Obsolete
  87         /*
  88                 [0] u16 command
  89                 [2] u8 sector count
  90                 [3...] v2s16 pos + sector metadata
  91         */
  92
  93         TOCLIENT_INVENTORY = 0x27,
  94         /*
  95                 [0] u16 command
  96                 [2] serialized inventory
  97         */
  98
  99         TOCLIENT_OBJECTDATA = 0x28,
 100         /*
 101                 Sent as unreliable.
 102
 103                 u16 command
 104                 u16 number of player positions
 105                 for each player:
 106                         u16 peer_id
 107                         v3s32 position*100
 108                         v3s32 speed*100
 109                         s32 pitch*100
 110                         s32 yaw*100
 111                 u16 count of blocks
 112                 for each block:
 113                         v3s16 blockpos
 114                         block objects
 115         */
 116
 117         TOCLIENT_TIME_OF_DAY = 0x29,
 118         /*
 119                 u16 command
 120                 u16 time (0-23999)
 121         */
 122
 123         // (oops, there is some gap here)
 124
 125         TOCLIENT_CHAT_MESSAGE = 0x30,
 126         /*
 127                 u16 command
 128                 u16 length
 129                 wstring message
 130         */
 131
 132         TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD = 0x31,
 133         /*
 134                 u16 command
 135                 u16 count of removed objects
 136                 for all removed objects {
 137                         u16 id
 138                 }
 139                 u16 count of added objects
 140                 for all added objects {
 141                         u16 id
 142                         u8 type
 143                         u32 initialization data length
 144                         string initialization data
 145                 }
 146         */
 147
 148         TOCLIENT_ACTIVE_OBJECT_MESSAGES = 0x32,
 149         /*
 150                 u16 command
 151                 for all objects
 152                 {
 153                         u16 id
 154                         u16 message length
 155                         string message
 156                 }
 157         */
 158
 159         TOCLIENT_HP = 0x33,
 160         /*
 161                 u16 command
 162                 u8 hp
 163         */
 164
 165         TOCLIENT_MOVE_PLAYER = 0x34,
 166         /*
 167                 u16 command
 168                 v3f1000 player position
 169                 f1000 player pitch
 170                 f1000 player yaw
 171         */
 172
 173         TOCLIENT_ACCESS_DENIED = 0x35,
 174         /*
 175                 u16 command
 176                 u16 reason_length
 177                 wstring reason
 178         */
 179
 180         TOCLIENT_PLAYERITEM = 0x36,
 181         /*
 182                 u16 command
 183                 u16 count of player items
 184                 for all player items {
 185                         u16 peer id
 186                         u16 length of serialized item
 187                         string serialized item
 188                 }
 189         */
 190
 191         TOCLIENT_DEATHSCREEN = 0x37,
 192         /*
 193                 u16 command
 194                 u8 bool set camera point target
 195                 v3f1000 camera point target (to point the death cause or whatever)
 196         */
 197
 198         TOCLIENT_TOOLDEF = 0x38,
 199         /*
 200                 u16 command
 201                 u32 length of the next item
 202                 serialized ToolDefManager
 203         */
 204
 205         TOCLIENT_TEXTURES = 0x39,
 206         /*
 207                 u16 command
 208                 u32 number of textures
 209                 for each texture {
 210                         u16 length of name
 211                         string name
 212                         u32 length of data
 213                         data
 214                 }
 215         */
 216
 217         TOCLIENT_NODEDEF = 0x3a,
 218         /*
 219                 u16 command
 220                 u32 length of the next item
 221                 serialized NodeDefManager
 222         */
 223
 224         //TOCLIENT_CONTENT_SENDING_MODE = 0x38,
 225         /*
 226                 u16 command
 227                 u8 mode (0 = off, 1 = on)
 228         */
 229 };
 230
 231 enum ToServerCommand
 232 {
 233         TOSERVER_INIT=0x10,
 234         /*
 235                 Sent first after connected.
 236
 237                 [0] u16 TOSERVER_INIT
 238                 [2] u8 SER_FMT_VER_HIGHEST
 239                 [3] u8[20] player_name
 240                 [23] u8[28] password (new in some version)
 241                 [51] u16 client network protocol version (new in some version)
 242         */
 243
 244         TOSERVER_INIT2 = 0x11,
 245         /*
 246                 Sent as an ACK for TOCLIENT_INIT.
 247                 After this, the server can send data.
 248
 249                 [0] u16 TOSERVER_INIT2
 250         */
 251
 252         TOSERVER_GETBLOCK=0x20, // Obsolete
 253         TOSERVER_ADDNODE = 0x21, // Obsolete
 254         TOSERVER_REMOVENODE = 0x22, // Obsolete
 255
 256         TOSERVER_PLAYERPOS = 0x23,
 257         /*
 258                 [0] u16 command
 259                 [2] v3s32 position*100
 260                 [2+12] v3s32 speed*100
 261                 [2+12+12] s32 pitch*100
 262                 [2+12+12+4] s32 yaw*100
 263         */
 264
 265         TOSERVER_GOTBLOCKS = 0x24,
 266         /*
 267                 [0] u16 command
 268                 [2] u8 count
 269                 [3] v3s16 pos_0
 270                 [3+6] v3s16 pos_1
 271                 ...
 272         */
 273
 274         TOSERVER_DELETEDBLOCKS = 0x25,
 275         /*
 276                 [0] u16 command
 277                 [2] u8 count
 278                 [3] v3s16 pos_0
 279                 [3+6] v3s16 pos_1
 280                 ...
 281         */
 282
 283         TOSERVER_ADDNODE_FROM_INVENTORY = 0x26, // Obsolete
 284         /*
 285                 [0] u16 command
 286                 [2] v3s16 pos
 287                 [8] u16 i
 288         */
 289
 290         TOSERVER_CLICK_OBJECT = 0x27,
 291         /*
 292                 length: 13
 293                 [0] u16 command
 294                 [2] u8 button (0=left, 1=right)
 295                 [3] v3s16 blockpos
 296                 [9] s16 id
 297                 [11] u16 item
 298         */
 299
 300         TOSERVER_GROUND_ACTION = 0x28,
 301         /*
 302                 length: 17
 303                 [0] u16 command
 304                 [2] u8 action
 305                 [3] v3s16 nodepos_undersurface
 306                 [9] v3s16 nodepos_abovesurface
 307                 [15] u16 item
 308                 actions:
 309                 0: start digging (from undersurface)
 310                 1: place block (to abovesurface)
 311                 2: stop digging (all parameters ignored)
 312                 3: digging completed
 313         */
 314
 315         TOSERVER_RELEASE = 0x29, // Obsolete
 316
 317         // (oops, there is some gap here)
 318
 319         TOSERVER_SIGNTEXT = 0x30, // Old signs
 320         /*
 321                 u16 command
 322                 v3s16 blockpos
 323                 s16 id
 324                 u16 textlen
 325                 textdata
 326         */
 327
 328         TOSERVER_INVENTORY_ACTION = 0x31,
 329         /*
 330                 See InventoryAction in inventory.h
 331         */
 332
 333         TOSERVER_CHAT_MESSAGE = 0x32,
 334         /*
 335                 u16 command
 336                 u16 length
 337                 wstring message
 338         */
 339
 340         TOSERVER_SIGNNODETEXT = 0x33,
 341         /*
 342                 u16 command
 343                 v3s16 p
 344                 u16 textlen
 345                 textdata
 346         */
 347
 348         TOSERVER_CLICK_ACTIVEOBJECT = 0x34,
 349         /*
 350                 length: 7
 351                 [0] u16 command
 352                 [2] u8 button (0=left, 1=right)
 353                 [3] u16 id
 354                 [5] u16 item
 355         */
 356
 357         TOSERVER_DAMAGE = 0x35,
 358         /*
 359                 u16 command
 360                 u8 amount
 361         */
 362
 363         TOSERVER_PASSWORD=0x36,
 364         /*
 365                 Sent to change password.
 366
 367                 [0] u16 TOSERVER_PASSWORD
 368                 [2] u8[28] old password
 369                 [30] u8[28] new password
 370         */
 371
 372         TOSERVER_PLAYERITEM=0x37,
 373         /*
 374                 Sent to change selected item.
 375
 376                 [0] u16 TOSERVER_PLAYERITEM
 377                 [2] u16 item
 378         */
 379
 380         TOSERVER_RESPAWN=0x38,
 381         /*
 382                 u16 TOSERVER_RESPAWN
 383         */
 384 };
 385
 386 inline SharedBuffer<u8> makePacket_TOCLIENT_TIME_OF_DAY(u16 time)
 387 {
 388         SharedBuffer<u8> data(2+2);
 389         writeU16(&data[0], TOCLIENT_TIME_OF_DAY);
 390         writeU16(&data[2], time);
 391         return data;
 392 }
 393
 394 #endif
 395