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, player_id))
  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::OnResume() {
  84         OnFocus();
  85 }
  86
  87 void InteractiveState::OnPause() {
  88         OnBlur();
  89 }
  90
  91 void InteractiveState::OnFocus() {
  92         if (master.GetConfig().input.mouse) {
  93                 master.GetEnv().window.GrabMouse();
  94         }
  95         interface.Unlock();
  96 }
  97
  98 void InteractiveState::OnBlur() {
  99         master.GetEnv().window.ReleaseMouse();
 100         interface.Lock();
 101 }
 102
 103 void InteractiveState::Handle(const SDL_Event &event) {
 104         switch (event.type) {
 105                 case SDL_KEYDOWN:
 106                         // TODO: move to interface
 107                         if (event.key.keysym.sym == SDLK_RETURN) {
 108                                 master.GetEnv().state.Push(&chat);
 109                                 hud.KeepMessages(true);
 110                         } else {
 111                                 interface.HandlePress(event.key);
 112                         }
 113                         break;
 114                 case SDL_KEYUP:
 115                         interface.HandleRelease(event.key);
 116                         break;
 117                 case SDL_MOUSEBUTTONDOWN:
 118                         interface.HandlePress(event.button);
 119                         break;
 120                 case SDL_MOUSEBUTTONUP:
 121                         interface.HandleRelease(event.button);
 122                         break;
 123                 case SDL_MOUSEMOTION:
 124                         interface.Handle(event.motion);
 125                         break;
 126                 case SDL_MOUSEWHEEL:
 127                         interface.Handle(event.wheel);
 128                         break;
 129                 case SDL_QUIT:
 130                         Exit();
 131                         break;
 132                 default:
 133                         break;
 134         }
 135 }
 136
 137 void InteractiveState::Update(int dt) {
 138         input.Update(dt);
 139         if (input.BlockFocus()) {
 140                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 141         } else if (input.EntityFocus()) {
 142                 hud.FocusEntity(*input.EntityFocus().entity);
 143         } else {
 144                 hud.FocusNone();
 145         }
 146         hud.Display(res.block_types[player.GetInventorySlot() + 1]);
 147         loop_timer.Update(dt);
 148         master.Update(dt);
 149         chunk_receiver.Update(dt);
 150
 151         hud.Update(dt);
 152         int world_dt = 0;
 153         while (loop_timer.HitOnce()) {
 154                 world.Update(loop_timer.Interval());
 155                 world_dt += loop_timer.Interval();
 156                 loop_timer.PopIteration();
 157         }
 158         chunk_renderer.Update(dt);
 159
 160         if (world_dt > 0) {
 161                 input.PushPlayerUpdate(world_dt);
 162         }
 163
 164         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 165         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 166         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 167         master.GetEnv().audio.Position(player.GetEntity().Position());
 168         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 169         master.GetEnv().audio.Orientation(dir, up);
 170 }
 171
 172 void InteractiveState::Render(Viewport &viewport) {
 173         viewport.WorldPosition(
 174                 player.GetEntity().Transform(player.GetEntity().ChunkCoords())
 175                 * player.GetEntity().GetModel().EyesTransform());
 176         if (master.GetConfig().video.world) {
 177                 chunk_renderer.Render(viewport);
 178                 world.Render(viewport);
 179                 sky.Render(viewport);
 180         }
 181         hud.Render(viewport);
 182 }
 183
 184 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 185         uint32_t entity_id;
 186         pack.ReadEntityID(entity_id);
 187         Entity &entity = world.ForceAddEntity(entity_id);
 188         UpdateEntity(entity_id, pack.Seq());
 189         pack.ReadEntity(entity);
 190         uint32_t model_id;
 191         pack.ReadModelID(model_id);
 192         if (model_id > 0 && model_id <= res.models.size()) {
 193                 res.models.Get(model_id).Instantiate(entity.GetModel());
 194         }
 195         cout << "spawned entity #" << entity_id << "  (" << entity.Name()
 196                 << ") at " << entity.AbsolutePosition() << endl;
 197 }
 198
 199 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 200         uint32_t entity_id;
 201         pack.ReadEntityID(entity_id);
 202         ClearEntity(entity_id);
 203         for (Entity &entity : world.Entities()) {
 204                 if (entity.ID() == entity_id) {
 205                         entity.Kill();
 206                         cout << "despawned entity #" << entity_id << " (" << entity.Name() << ") at " << entity.AbsolutePosition() << endl;
 207                         return;
 208                 }
 209         }
 210 }
 211
 212 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 213         auto world_iter = world.Entities().begin();
 214         auto world_end = world.Entities().end();
 215
 216         uint32_t count = 0;
 217         glm::ivec3 base;
 218         pack.ReadEntityCount(count);
 219         pack.ReadChunkBase(base);
 220         EntityState state;
 221
 222         for (uint32_t i = 0; i < count; ++i) {
 223                 uint32_t entity_id = 0;
 224                 pack.ReadEntityID(entity_id, i);
 225
 226                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 227                         ++world_iter;
 228                 }
 229                 if (world_iter == world_end) {
 230                         // nothing can be done from here
 231                         return;
 232                 }
 233                 if (world_iter->ID() == entity_id) {
 234                         if (UpdateEntity(entity_id, pack.Seq())) {
 235                                 pack.ReadEntityState(state, base, i);
 236                                 world_iter->SetState(state);
 237                         }
 238                 }
 239         }
 240 }
 241
 242 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 243         auto entry = update_status.find(entity_id);
 244         if (entry == update_status.end()) {
 245                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 246                 return true;
 247         }
 248
 249         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 250         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 251         entry->second.last_update = loop_timer.Elapsed();
 252
 253         if (pack_diff > 0 || time_diff > 1500) {
 254                 entry->second.last_packet = seq;
 255                 return true;
 256         } else {
 257                 return false;
 258         }
 259 }
 260
 261 void InteractiveState::ClearEntity(uint32_t entity_id) {
 262         update_status.erase(entity_id);
 263 }
 264
 265 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 266         uint16_t pack_seq;
 267         EntityState corrected_state;
 268         pack.ReadPacketSeq(pack_seq);
 269         pack.ReadPlayerState(corrected_state);
 270         input.MergePlayerCorrection(pack_seq, corrected_state);
 271 }
 272
 273 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 274         glm::ivec3 pos;
 275         pack.ReadChunkCoords(pos);
 276         Chunk *chunk = player.GetChunks().Get(pos);
 277         if (!chunk) {
 278                 // this change doesn't concern us
 279                 return;
 280         }
 281         uint32_t count = 0;
 282         pack.ReadBlockCount(count);
 283         for (uint32_t i = 0; i < count; ++i) {
 284                 uint16_t index;
 285                 Block block;
 286                 pack.ReadIndex(index, i);
 287                 pack.ReadBlock(block, i);
 288                 if (index < Chunk::size && block.type < res.block_types.size()) {
 289                         manip.SetBlock(*chunk, index, block);
 290                 }
 291         }
 292 }
 293
 294 void InteractiveState::Handle(const Packet::Message &pack) {
 295         string msg;
 296         pack.ReadMessage(msg);
 297         hud.PostMessage(msg);
 298 }
 299
 300 void InteractiveState::SetAudio(bool b) {
 301         master.GetConfig().audio.enabled = b;
 302         if (b) {
 303                 hud.PostMessage("Audio enabled");
 304         } else {
 305                 hud.PostMessage("Audio disabled");
 306         }
 307 }
 308
 309 void InteractiveState::SetVideo(bool b) {
 310         master.GetConfig().video.world = b;
 311         if (b) {
 312                 hud.PostMessage("World rendering enabled");
 313         } else {
 314                 hud.PostMessage("World rendering disabled");
 315         }
 316 }
 317
 318 void InteractiveState::SetHUD(bool b) {
 319         master.GetConfig().video.hud = b;
 320         if (b) {
 321                 hud.PostMessage("HUD rendering enabled");
 322         } else {
 323                 hud.PostMessage("HUD rendering disabled");
 324         }
 325 }
 326
 327 void InteractiveState::SetDebug(bool b) {
 328         master.GetConfig().video.debug = b;
 329         if (b) {
 330                 hud.PostMessage("Debug rendering enabled");
 331         } else {
 332                 hud.PostMessage("Debug rendering disabled");
 333         }
 334 }
 335
 336 void InteractiveState::Exit() {
 337         save.Write(player);
 338         master.Quit();
 339 }
 340
 341 void InteractiveState::OnLineSubmit(const string &line) {
 342         if (!line.empty()) {
 343                 master.GetClient().SendMessage(1, 0, line);
 344         }
 345 }
 346
 347
 348 MasterState::MasterState(
 349         Environment &env,
 350         Config &config,
 351         const World::Config &wc)
 352 : env(env)
 353 , config(config)
 354 , world_conf(wc)
 355 , state()
 356 , client(config.net)
 357 , init_state(*this)
 358 , login_packet(-1) {
 359         client.GetConnection().SetHandler(this);
 360 }
 361
 362 void MasterState::Quit() {
 363         if (!client.GetConnection().Closed()) {
 364                 client.SendPart();
 365         }
 366         env.state.PopUntil(this);
 367 }
 368
 369
 370 void MasterState::OnEnter() {
 371         login_packet = client.SendLogin(config.player.name);
 372         env.state.Push(&init_state);
 373 }
 374
 375
 376 void MasterState::Handle(const SDL_Event &event) {
 377
 378 }
 379
 380
 381 void MasterState::Update(int dt) {
 382         client.Handle();
 383         client.Update(dt);
 384 }
 385
 386
 387 void MasterState::Render(Viewport &) {
 388
 389 }
 390
 391
 392 void MasterState::OnPacketLost(uint16_t id) {
 393         if (id == login_packet) {
 394                 login_packet = client.SendLogin(config.player.name);
 395         }
 396 }
 397
 398 void MasterState::OnTimeout() {
 399         if (client.GetConnection().Closed()) {
 400                 Quit();
 401                 env.ShowMessage("connection timed out");
 402         }
 403 }
 404
 405 void MasterState::On(const Packet::Join &pack) {
 406         pack.ReadWorldName(world_conf.name);
 407
 408         if (state) {
 409                 // changing worlds
 410                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 411         } else {
 412                 // joining game
 413                 cout << "joined game \"" << world_conf.name << '"' << endl;
 414                 // server received our login
 415                 login_packet = -1;
 416         }
 417
 418         uint32_t player_id;
 419         pack.ReadPlayerID(player_id);
 420         state.reset(new InteractiveState(*this, player_id));
 421
 422         EntityState player_state;
 423         pack.ReadPlayerState(player_state);
 424         state->GetPlayer().GetEntity().SetState(player_state);
 425
 426         env.state.PopAfter(this);
 427         env.state.Push(state.get());
 428 }
 429
 430 void MasterState::On(const Packet::Part &pack) {
 431         Quit();
 432         if (state) {
 433                 // kicked
 434                 env.ShowMessage("kicked by server");
 435         } else {
 436                 // join refused
 437                 env.ShowMessage("login refused by server");
 438         }
 439 }
 440
 441 void MasterState::On(const Packet::SpawnEntity &pack) {
 442         if (!state) {
 443                 cout << "got entity spawn before world was created" << endl;
 444                 return;
 445         }
 446         state->Handle(pack);
 447 }
 448
 449 void MasterState::On(const Packet::DespawnEntity &pack) {
 450         if (!state) {
 451                 cout << "got entity despawn before world was created" << endl;
 452                 return;
 453         }
 454         state->Handle(pack);
 455 }
 456
 457 void MasterState::On(const Packet::EntityUpdate &pack) {
 458         if (!state) {
 459                 cout << "got entity update before world was created" << endl;
 460                 return;
 461         }
 462         state->Handle(pack);
 463 }
 464
 465 void MasterState::On(const Packet::PlayerCorrection &pack) {
 466         if (!state) {
 467                 cout << "got player correction without a player :S" << endl;
 468                 return;
 469         }
 470         state->Handle(pack);
 471 }
 472
 473 void MasterState::On(const Packet::ChunkBegin &pack) {
 474         if (!state) {
 475                 cout << "got chunk data, but the world has not been created yet" << endl;
 476                 cout << "great, this will totally screw up everything :(" << endl;
 477                 return;
 478         }
 479         state->GetChunkReceiver().Handle(pack);
 480 }
 481
 482 void MasterState::On(const Packet::ChunkData &pack) {
 483         if (!state) {
 484                 cout << "got chunk data, but the world has not been created yet" << endl;
 485                 cout << "great, this will totally screw up everything :(" << endl;
 486                 return;
 487         }
 488         state->GetChunkReceiver().Handle(pack);
 489 }
 490
 491 void MasterState::On(const Packet::BlockUpdate &pack) {
 492         if (!state) {
 493                 cout << "received block update, but the world has not been created yet" << endl;
 494                 return;
 495         }
 496         state->Handle(pack);
 497 }
 498
 499 void MasterState::On(const Packet::Message &pack) {
 500         if (state) {
 501                 state->Handle(pack);
 502         } else {
 503                 string msg;
 504                 pack.ReadMessage(msg);
 505                 cout << "got message before interface was created: " << msg << endl;
 506         }
 507 }
 508
 509 }
 510 }