src/client/client.cpp

   1 #include "InitialState.hpp"
   2 #include "InteractiveState.hpp"
   3 #include "MasterState.hpp"
   4
   5 #include "../app/Environment.hpp"
   6 #include "../app/init.hpp"
   7 #include "../model/Model.hpp"
   8 #include "../io/WorldSave.hpp"
   9 #include "../world/ChunkIndex.hpp"
  10 #include "../world/ChunkStore.hpp"
  11
  12 #include <iostream>
  13 #include <glm/gtx/io.hpp>
  14
  15 using namespace std;
  16
  17
  18 namespace blank {
  19 namespace client {
  20
  21 InitialState::InitialState(MasterState &master)
  22 : master(master)
  23 , message() {
  24         message.Position(glm::vec3(0.0f), Gravity::CENTER);
  25         message.Set(master.GetEnv().assets.large_ui_font, "logging in");
  26 }
  27
  28 void InitialState::OnEnter() {
  29
  30 }
  31
  32 void InitialState::Handle(const SDL_Event &evt) {
  33         if (evt.type == SDL_QUIT) {
  34                 master.Quit();
  35         }
  36 }
  37
  38 void InitialState::Update(int dt) {
  39         master.Update(dt);
  40 }
  41
  42 void InitialState::Render(Viewport &viewport) {
  43         message.Render(viewport);
  44 }
  45
  46
  47 // TODO: this clutter is a giant mess
  48 InteractiveState::InteractiveState(MasterState &master, uint32_t player_id)
  49 : master(master)
  50 , res()
  51 , sounds()
  52 , save(master.GetEnv().config.GetWorldPath(master.GetWorldConf().name, master.GetConfig().net.host))
  53 , world(res.block_types, master.GetWorldConf())
  54 , player(*world.AddPlayer(master.GetConfig().player.name))
  55 , hud(master.GetEnv(), master.GetConfig(), player)
  56 , manip(master.GetEnv().audio, sounds, player.GetEntity())
  57 , input(world, player, master.GetClient())
  58 , interface(master.GetConfig(), master.GetEnv().keymap, input, *this)
  59 , chunk_receiver(world.Chunks(), save)
  60 , chunk_renderer(player.GetChunks())
  61 , loop_timer(16)
  62 , sky(master.GetEnv().loader.LoadCubeMap("skybox"))
  63 , update_status()
  64 , chat(master.GetEnv(), *this, *this) {
  65         if (!save.Exists()) {
  66                 save.Write(master.GetWorldConf());
  67         }
  68         res.Load(master.GetEnv().loader, "default");
  69         if (res.models.size() < 1) {
  70                 throw std::runtime_error("need at least one model to run");
  71         }
  72         res.models[0].Instantiate(player.GetEntity().GetModel());
  73         sounds.Load(master.GetEnv().loader, res.snd_index);
  74         interface.SetInventorySlots(res.block_types.size() - 1);
  75         chunk_renderer.LoadTextures(master.GetEnv().loader, res.tex_index);
  76         chunk_renderer.FogDensity(master.GetWorldConf().fog_density);
  77         loop_timer.Start();
  78         if (save.Exists(player)) {
  79                 save.Read(player);
  80         }
  81 }
  82
  83 void InteractiveState::OnEnter() {
  84         master.GetEnv().window.GrabMouse();
  85 }
  86
  87 void InteractiveState::Handle(const SDL_Event &event) {
  88         switch (event.type) {
  89                 case SDL_KEYDOWN:
  90                         // TODO: move to interface
  91                         if (event.key.keysym.sym == SDLK_RETURN) {
  92                                 master.GetEnv().state.Push(&chat);
  93                                 hud.KeepMessages(true);
  94                         } else {
  95                                 interface.HandlePress(event.key);
  96                         }
  97                         break;
  98                 case SDL_KEYUP:
  99                         interface.HandleRelease(event.key);
 100                         break;
 101                 case SDL_MOUSEBUTTONDOWN:
 102                         interface.HandlePress(event.button);
 103                         break;
 104                 case SDL_MOUSEBUTTONUP:
 105                         interface.HandleRelease(event.button);
 106                         break;
 107                 case SDL_MOUSEMOTION:
 108                         interface.Handle(event.motion);
 109                         break;
 110                 case SDL_MOUSEWHEEL:
 111                         interface.Handle(event.wheel);
 112                         break;
 113                 case SDL_QUIT:
 114                         Exit();
 115                         break;
 116                 default:
 117                         break;
 118         }
 119 }
 120
 121 void InteractiveState::Update(int dt) {
 122         input.Update(dt);
 123         if (input.BlockFocus()) {
 124                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 125         } else if (input.EntityFocus()) {
 126                 hud.FocusEntity(*input.EntityFocus().entity);
 127         } else {
 128                 hud.FocusNone();
 129         }
 130         hud.Display(res.block_types[player.GetInventorySlot() + 1]);
 131         loop_timer.Update(dt);
 132         master.Update(dt);
 133         chunk_receiver.Update(dt);
 134
 135         hud.Update(dt);
 136         int world_dt = 0;
 137         while (loop_timer.HitOnce()) {
 138                 world.Update(loop_timer.Interval());
 139                 world_dt += loop_timer.Interval();
 140                 loop_timer.PopIteration();
 141         }
 142         chunk_renderer.Update(dt);
 143
 144         if (world_dt > 0) {
 145                 input.PushPlayerUpdate(world_dt);
 146         }
 147
 148         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 149         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 150         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 151         master.GetEnv().audio.Position(player.GetEntity().Position());
 152         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 153         master.GetEnv().audio.Orientation(dir, up);
 154 }
 155
 156 void InteractiveState::Render(Viewport &viewport) {
 157         viewport.WorldPosition(
 158                 player.GetEntity().Transform(player.GetEntity().ChunkCoords())
 159                 * player.GetEntity().GetModel().EyesTransform());
 160         if (master.GetConfig().video.world) {
 161                 chunk_renderer.Render(viewport);
 162                 world.Render(viewport);
 163                 sky.Render(viewport);
 164         }
 165         hud.Render(viewport);
 166 }
 167
 168 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 169         uint32_t entity_id;
 170         pack.ReadEntityID(entity_id);
 171         Entity &entity = world.ForceAddEntity(entity_id);
 172         UpdateEntity(entity_id, pack.Seq());
 173         pack.ReadEntity(entity);
 174         uint32_t skel_id;
 175         pack.ReadSkeletonID(skel_id);
 176         if (skel_id > 0 && skel_id <= res.models.size()) {
 177                 Model &skel = res.models.Get(skel_id);
 178                 skel.Instantiate(entity.GetModel());
 179         }
 180         cout << "spawned entity #" << entity_id << "  (" << entity.Name()
 181                 << ") at " << entity.AbsolutePosition() << endl;
 182 }
 183
 184 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 185         uint32_t entity_id;
 186         pack.ReadEntityID(entity_id);
 187         ClearEntity(entity_id);
 188         for (Entity &entity : world.Entities()) {
 189                 if (entity.ID() == entity_id) {
 190                         entity.Kill();
 191                         cout << "despawned entity #" << entity_id << " (" << entity.Name() << ") at " << entity.AbsolutePosition() << endl;
 192                         return;
 193                 }
 194         }
 195 }
 196
 197 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 198         auto world_iter = world.Entities().begin();
 199         auto world_end = world.Entities().end();
 200
 201         uint32_t count = 0;
 202         pack.ReadEntityCount(count);
 203
 204         for (uint32_t i = 0; i < count; ++i) {
 205                 uint32_t entity_id = 0;
 206                 pack.ReadEntityID(entity_id, i);
 207
 208                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 209                         ++world_iter;
 210                 }
 211                 if (world_iter == world_end) {
 212                         // nothing can be done from here
 213                         return;
 214                 }
 215                 if (world_iter->ID() == entity_id) {
 216                         if (UpdateEntity(entity_id, pack.Seq())) {
 217                                 pack.ReadEntityState(world_iter->GetState(), i);
 218                         }
 219                 }
 220         }
 221 }
 222
 223 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 224         auto entry = update_status.find(entity_id);
 225         if (entry == update_status.end()) {
 226                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 227                 return true;
 228         }
 229
 230         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 231         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 232         entry->second.last_update = loop_timer.Elapsed();
 233
 234         if (pack_diff > 0 || time_diff > 1500) {
 235                 entry->second.last_packet = seq;
 236                 return true;
 237         } else {
 238                 return false;
 239         }
 240 }
 241
 242 void InteractiveState::ClearEntity(uint32_t entity_id) {
 243         update_status.erase(entity_id);
 244 }
 245
 246 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 247         uint16_t pack_seq;
 248         EntityState corrected_state;
 249         pack.ReadPacketSeq(pack_seq);
 250         pack.ReadPlayerState(corrected_state);
 251         input.MergePlayerCorrection(pack_seq, corrected_state);
 252 }
 253
 254 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 255         glm::ivec3 pos;
 256         pack.ReadChunkCoords(pos);
 257         Chunk *chunk = player.GetChunks().Get(pos);
 258         if (!chunk) {
 259                 // this change doesn't concern us
 260                 return;
 261         }
 262         uint32_t count = 0;
 263         pack.ReadBlockCount(count);
 264         for (uint32_t i = 0; i < count; ++i) {
 265                 uint16_t index;
 266                 Block block;
 267                 pack.ReadIndex(index, i);
 268                 pack.ReadBlock(block, i);
 269                 if (index < Chunk::size && block.type < res.block_types.size()) {
 270                         manip.SetBlock(*chunk, index, block);
 271                 }
 272         }
 273 }
 274
 275 void InteractiveState::Handle(const Packet::Message &pack) {
 276         string msg;
 277         pack.ReadMessage(msg);
 278         hud.PostMessage(msg);
 279 }
 280
 281 void InteractiveState::SetAudio(bool b) {
 282         master.GetConfig().audio.enabled = b;
 283         if (b) {
 284                 hud.PostMessage("Audio enabled");
 285         } else {
 286                 hud.PostMessage("Audio disabled");
 287         }
 288 }
 289
 290 void InteractiveState::SetVideo(bool b) {
 291         master.GetConfig().video.world = b;
 292         if (b) {
 293                 hud.PostMessage("World rendering enabled");
 294         } else {
 295                 hud.PostMessage("World rendering disabled");
 296         }
 297 }
 298
 299 void InteractiveState::SetHUD(bool b) {
 300         master.GetConfig().video.hud = b;
 301         if (b) {
 302                 hud.PostMessage("HUD rendering enabled");
 303         } else {
 304                 hud.PostMessage("HUD rendering disabled");
 305         }
 306 }
 307
 308 void InteractiveState::SetDebug(bool b) {
 309         master.GetConfig().video.debug = b;
 310         if (b) {
 311                 hud.PostMessage("Debug rendering enabled");
 312         } else {
 313                 hud.PostMessage("Debug rendering disabled");
 314         }
 315 }
 316
 317 void InteractiveState::Exit() {
 318         save.Write(player);
 319         master.Quit();
 320 }
 321
 322 void InteractiveState::OnLineSubmit(const string &line) {
 323         master.GetClient().SendMessage(1, 0, line);
 324 }
 325
 326
 327 MasterState::MasterState(
 328         Environment &env,
 329         Config &config,
 330         const World::Config &wc)
 331 : env(env)
 332 , config(config)
 333 , world_conf(wc)
 334 , state()
 335 , client(config.net)
 336 , init_state(*this)
 337 , login_packet(-1) {
 338         client.GetConnection().SetHandler(this);
 339 }
 340
 341 void MasterState::Quit() {
 342         if (!client.GetConnection().Closed()) {
 343                 client.SendPart();
 344         }
 345         env.state.PopUntil(this);
 346 }
 347
 348
 349 void MasterState::OnEnter() {
 350         login_packet = client.SendLogin(config.player.name);
 351         env.state.Push(&init_state);
 352 }
 353
 354
 355 void MasterState::Handle(const SDL_Event &event) {
 356
 357 }
 358
 359
 360 void MasterState::Update(int dt) {
 361         client.Handle();
 362         client.Update(dt);
 363 }
 364
 365
 366 void MasterState::Render(Viewport &) {
 367
 368 }
 369
 370
 371 void MasterState::OnPacketLost(uint16_t id) {
 372         if (id == login_packet) {
 373                 login_packet = client.SendLogin(config.player.name);
 374         }
 375 }
 376
 377 void MasterState::OnTimeout() {
 378         if (client.GetConnection().Closed()) {
 379                 Quit();
 380                 env.ShowMessage("connection timed out");
 381         }
 382 }
 383
 384 void MasterState::On(const Packet::Join &pack) {
 385         pack.ReadWorldName(world_conf.name);
 386
 387         if (state) {
 388                 // changing worlds
 389                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 390         } else {
 391                 // joining game
 392                 cout << "joined game \"" << world_conf.name << '"' << endl;
 393                 // server received our login
 394                 login_packet = -1;
 395         }
 396
 397         uint32_t player_id;
 398         pack.ReadPlayerID(player_id);
 399         state.reset(new InteractiveState(*this, player_id));
 400
 401         pack.ReadPlayerState(state->GetPlayer().GetEntity().GetState());
 402         glm::vec3 orient(glm::eulerAngles(state->GetPlayer().GetEntity().Orientation()));
 403         state->GetPlayerController().TurnHead(orient.x, orient.y);
 404
 405         env.state.PopAfter(this);
 406         env.state.Push(state.get());
 407 }
 408
 409 void MasterState::On(const Packet::Part &pack) {
 410         Quit();
 411         if (state) {
 412                 // kicked
 413                 env.ShowMessage("kicked by server");
 414         } else {
 415                 // join refused
 416                 env.ShowMessage("login refused by server");
 417         }
 418 }
 419
 420 void MasterState::On(const Packet::SpawnEntity &pack) {
 421         if (!state) {
 422                 cout << "got entity spawn before world was created" << endl;
 423                 return;
 424         }
 425         state->Handle(pack);
 426 }
 427
 428 void MasterState::On(const Packet::DespawnEntity &pack) {
 429         if (!state) {
 430                 cout << "got entity despawn before world was created" << endl;
 431                 return;
 432         }
 433         state->Handle(pack);
 434 }
 435
 436 void MasterState::On(const Packet::EntityUpdate &pack) {
 437         if (!state) {
 438                 cout << "got entity update before world was created" << endl;
 439                 return;
 440         }
 441         state->Handle(pack);
 442 }
 443
 444 void MasterState::On(const Packet::PlayerCorrection &pack) {
 445         if (!state) {
 446                 cout << "got player correction without a player :S" << endl;
 447                 return;
 448         }
 449         state->Handle(pack);
 450 }
 451
 452 void MasterState::On(const Packet::ChunkBegin &pack) {
 453         if (!state) {
 454                 cout << "got chunk data, but the world has not been created yet" << endl;
 455                 cout << "great, this will totally screw up everything :(" << endl;
 456                 return;
 457         }
 458         state->GetChunkReceiver().Handle(pack);
 459 }
 460
 461 void MasterState::On(const Packet::ChunkData &pack) {
 462         if (!state) {
 463                 cout << "got chunk data, but the world has not been created yet" << endl;
 464                 cout << "great, this will totally screw up everything :(" << endl;
 465                 return;
 466         }
 467         state->GetChunkReceiver().Handle(pack);
 468 }
 469
 470 void MasterState::On(const Packet::BlockUpdate &pack) {
 471         if (!state) {
 472                 cout << "received block update, but the world has not been created yet" << endl;
 473                 return;
 474         }
 475         state->Handle(pack);
 476 }
 477
 478 void MasterState::On(const Packet::Message &pack) {
 479         if (state) {
 480                 state->Handle(pack);
 481         } else {
 482                 string msg;
 483                 pack.ReadMessage(msg);
 484                 cout << "got message before interface was created: " << msg << endl;
 485         }
 486 }
 487
 488 }
 489 }