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 , stat_timer(1000)
  63 , sky(master.GetEnv().loader.LoadCubeMap("skybox"))
  64 , update_status()
  65 , chat(master.GetEnv(), *this, *this)
  66 , time_skipped(0)
  67 , packets_skipped(0) {
  68         if (!save.Exists()) {
  69                 save.Write(master.GetWorldConf());
  70         }
  71         res.Load(master.GetEnv().loader, "default");
  72         if (res.models.size() < 1) {
  73                 throw std::runtime_error("need at least one model to run");
  74         }
  75         res.models[0].Instantiate(player.GetEntity().GetModel());
  76         sounds.Load(master.GetEnv().loader, res.snd_index);
  77         interface.SetInventorySlots(res.block_types.size() - 1);
  78         chunk_renderer.LoadTextures(master.GetEnv().loader, res.tex_index);
  79         chunk_renderer.FogDensity(master.GetWorldConf().fog_density);
  80         loop_timer.Start();
  81         stat_timer.Start();
  82         if (save.Exists(player)) {
  83                 save.Read(player);
  84         }
  85 }
  86
  87 void InteractiveState::OnResume() {
  88         OnFocus();
  89 }
  90
  91 void InteractiveState::OnPause() {
  92         OnBlur();
  93 }
  94
  95 void InteractiveState::OnFocus() {
  96         if (master.GetConfig().input.mouse) {
  97                 master.GetEnv().window.GrabMouse();
  98         }
  99         interface.Unlock();
 100 }
 101
 102 void InteractiveState::OnBlur() {
 103         master.GetEnv().window.ReleaseMouse();
 104         interface.Lock();
 105 }
 106
 107 void InteractiveState::Handle(const SDL_Event &event) {
 108         switch (event.type) {
 109                 case SDL_KEYDOWN:
 110                         // TODO: move to interface
 111                         if (event.key.keysym.sym == SDLK_RETURN) {
 112                                 chat.Clear();
 113                                 master.GetEnv().state.Push(&chat);
 114                                 hud.KeepMessages(true);
 115                         } else if (event.key.keysym.sym == SDLK_SLASH) {
 116                                 chat.Preset("/");
 117                                 master.GetEnv().state.Push(&chat);
 118                                 hud.KeepMessages(true);
 119                         } else {
 120                                 interface.HandlePress(event.key);
 121                         }
 122                         break;
 123                 case SDL_KEYUP:
 124                         interface.HandleRelease(event.key);
 125                         break;
 126                 case SDL_MOUSEBUTTONDOWN:
 127                         interface.HandlePress(event.button);
 128                         break;
 129                 case SDL_MOUSEBUTTONUP:
 130                         interface.HandleRelease(event.button);
 131                         break;
 132                 case SDL_MOUSEMOTION:
 133                         interface.Handle(event.motion);
 134                         break;
 135                 case SDL_MOUSEWHEEL:
 136                         interface.Handle(event.wheel);
 137                         break;
 138                 case SDL_QUIT:
 139                         Exit();
 140                         break;
 141                 default:
 142                         break;
 143         }
 144 }
 145
 146 void InteractiveState::Update(int dt) {
 147         loop_timer.Update(dt);
 148         stat_timer.Update(dt);
 149         master.Update(dt);
 150         chunk_receiver.Update(dt);
 151
 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 (input.BlockFocus()) {
 161                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 162         } else if (input.EntityFocus()) {
 163                 hud.FocusEntity(*input.EntityFocus().entity);
 164         } else {
 165                 hud.FocusNone();
 166         }
 167         if (world_dt > 0) {
 168                 if (input.UpdateImportant() || packets_skipped >= master.NetStat().SuggestedPacketSkip()) {
 169                         input.PushPlayerUpdate(time_skipped + world_dt);
 170                         time_skipped = 0;
 171                         packets_skipped = 0;
 172                 } else {
 173                         time_skipped += world_dt;
 174                         ++packets_skipped;
 175                 }
 176         }
 177         hud.Display(res.block_types[player.GetInventorySlot() + 1]);
 178         if (stat_timer.Hit()) {
 179                 hud.UpdateNetStats(master.NetStat());
 180         }
 181         hud.Update(dt);
 182
 183         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 184         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 185         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 186         master.GetEnv().audio.Position(player.GetEntity().Position());
 187         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 188         master.GetEnv().audio.Orientation(dir, up);
 189 }
 190
 191 void InteractiveState::Render(Viewport &viewport) {
 192         viewport.WorldPosition(player.GetEntity().ViewTransform(player.GetEntity().ChunkCoords()));
 193         if (master.GetConfig().video.world) {
 194                 chunk_renderer.Render(viewport);
 195                 world.Render(viewport);
 196                 sky.Render(viewport);
 197         }
 198         hud.Render(viewport);
 199 }
 200
 201 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 202         uint32_t entity_id;
 203         pack.ReadEntityID(entity_id);
 204         Entity &entity = world.ForceAddEntity(entity_id);
 205         UpdateEntity(entity_id, pack.Seq());
 206         pack.ReadEntity(entity);
 207         uint32_t model_id;
 208         pack.ReadModelID(model_id);
 209         if (model_id > 0 && model_id <= res.models.size()) {
 210                 res.models.Get(model_id).Instantiate(entity.GetModel());
 211         }
 212 }
 213
 214 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 215         uint32_t entity_id;
 216         pack.ReadEntityID(entity_id);
 217         ClearEntity(entity_id);
 218         for (Entity &entity : world.Entities()) {
 219                 if (entity.ID() == entity_id) {
 220                         entity.Kill();
 221                         return;
 222                 }
 223         }
 224 }
 225
 226 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 227         auto world_iter = world.Entities().begin();
 228         auto world_end = world.Entities().end();
 229
 230         uint32_t count = 0;
 231         glm::ivec3 base;
 232         pack.ReadEntityCount(count);
 233         pack.ReadChunkBase(base);
 234         EntityState state;
 235
 236         for (uint32_t i = 0; i < count; ++i) {
 237                 uint32_t entity_id = 0;
 238                 pack.ReadEntityID(entity_id, i);
 239
 240                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 241                         ++world_iter;
 242                 }
 243                 if (world_iter == world_end) {
 244                         // nothing can be done from here
 245                         return;
 246                 }
 247                 if (world_iter->ID() == entity_id) {
 248                         if (UpdateEntity(entity_id, pack.Seq())) {
 249                                 pack.ReadEntityState(state, base, i);
 250                                 world_iter->SetState(state);
 251                         }
 252                 }
 253         }
 254 }
 255
 256 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 257         auto entry = update_status.find(entity_id);
 258         if (entry == update_status.end()) {
 259                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 260                 return true;
 261         }
 262
 263         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 264         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 265         entry->second.last_update = loop_timer.Elapsed();
 266
 267         if (pack_diff > 0 || time_diff > 1500) {
 268                 entry->second.last_packet = seq;
 269                 return true;
 270         } else {
 271                 return false;
 272         }
 273 }
 274
 275 void InteractiveState::ClearEntity(uint32_t entity_id) {
 276         update_status.erase(entity_id);
 277 }
 278
 279 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 280         uint16_t pack_seq;
 281         EntityState corrected_state;
 282         pack.ReadPacketSeq(pack_seq);
 283         pack.ReadPlayerState(corrected_state);
 284         input.MergePlayerCorrection(pack_seq, corrected_state);
 285 }
 286
 287 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 288         glm::ivec3 pos;
 289         pack.ReadChunkCoords(pos);
 290         Chunk *chunk = player.GetChunks().Get(pos);
 291         if (!chunk) {
 292                 // this change doesn't concern us
 293                 return;
 294         }
 295         uint32_t count = 0;
 296         pack.ReadBlockCount(count);
 297         for (uint32_t i = 0; i < count; ++i) {
 298                 uint16_t index;
 299                 Block block;
 300                 pack.ReadIndex(index, i);
 301                 pack.ReadBlock(block, i);
 302                 if (index < Chunk::size && block.type < res.block_types.size()) {
 303                         manip.SetBlock(*chunk, index, block);
 304                 }
 305         }
 306 }
 307
 308 void InteractiveState::Handle(const Packet::Message &pack) {
 309         string msg;
 310         pack.ReadMessage(msg);
 311         hud.PostMessage(msg);
 312 }
 313
 314 void InteractiveState::SetAudio(bool b) {
 315         master.GetConfig().audio.enabled = b;
 316         if (b) {
 317                 hud.PostMessage("Audio enabled");
 318         } else {
 319                 hud.PostMessage("Audio disabled");
 320         }
 321 }
 322
 323 void InteractiveState::SetVideo(bool b) {
 324         master.GetConfig().video.world = b;
 325         if (b) {
 326                 hud.PostMessage("World rendering enabled");
 327         } else {
 328                 hud.PostMessage("World rendering disabled");
 329         }
 330 }
 331
 332 void InteractiveState::SetHUD(bool b) {
 333         master.GetConfig().video.hud = b;
 334         if (b) {
 335                 hud.PostMessage("HUD rendering enabled");
 336         } else {
 337                 hud.PostMessage("HUD rendering disabled");
 338         }
 339 }
 340
 341 void InteractiveState::SetDebug(bool b) {
 342         master.GetConfig().video.debug = b;
 343         if (b) {
 344                 hud.PostMessage("Debug rendering enabled");
 345         } else {
 346                 hud.PostMessage("Debug rendering disabled");
 347         }
 348 }
 349
 350 void InteractiveState::Exit() {
 351         save.Write(player);
 352         master.Quit();
 353 }
 354
 355 void InteractiveState::OnLineSubmit(const string &line) {
 356         if (!line.empty()) {
 357                 master.GetClient().SendMessage(1, 0, line);
 358         }
 359 }
 360
 361
 362 MasterState::MasterState(
 363         Environment &env,
 364         Config &config,
 365         const World::Config &wc)
 366 : env(env)
 367 , config(config)
 368 , world_conf(wc)
 369 , state()
 370 , client(config.net)
 371 , init_state(*this)
 372 , login_packet(-1) {
 373         client.GetConnection().SetHandler(this);
 374 }
 375
 376 void MasterState::Quit() {
 377         if (!client.GetConnection().Closed()) {
 378                 client.SendPart();
 379         }
 380         env.state.PopUntil(this);
 381 }
 382
 383
 384 void MasterState::OnEnter() {
 385         login_packet = client.SendLogin(config.player.name);
 386         env.state.Push(&init_state);
 387 }
 388
 389
 390 void MasterState::Handle(const SDL_Event &event) {
 391
 392 }
 393
 394
 395 void MasterState::Update(int dt) {
 396         client.Handle();
 397         client.Update(dt);
 398 }
 399
 400
 401 void MasterState::Render(Viewport &) {
 402
 403 }
 404
 405
 406 void MasterState::OnPacketLost(uint16_t id) {
 407         if (id == login_packet) {
 408                 login_packet = client.SendLogin(config.player.name);
 409         }
 410 }
 411
 412 void MasterState::OnTimeout() {
 413         if (client.GetConnection().Closed()) {
 414                 Quit();
 415                 env.ShowMessage("connection timed out");
 416         }
 417 }
 418
 419 void MasterState::On(const Packet::Join &pack) {
 420         pack.ReadWorldName(world_conf.name);
 421
 422         if (state) {
 423                 // changing worlds
 424                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 425         } else {
 426                 // joining game
 427                 cout << "joined game \"" << world_conf.name << '"' << endl;
 428                 // server received our login
 429                 login_packet = -1;
 430         }
 431
 432         uint32_t player_id;
 433         pack.ReadPlayerID(player_id);
 434         state.reset(new InteractiveState(*this, player_id));
 435
 436         EntityState player_state;
 437         pack.ReadPlayerState(player_state);
 438         state->GetPlayer().GetEntity().SetState(player_state);
 439
 440         env.state.PopAfter(this);
 441         env.state.Push(state.get());
 442 }
 443
 444 void MasterState::On(const Packet::Part &pack) {
 445         Quit();
 446         if (state) {
 447                 // kicked
 448                 env.ShowMessage("kicked by server");
 449         } else {
 450                 // join refused
 451                 env.ShowMessage("login refused by server");
 452         }
 453 }
 454
 455 void MasterState::On(const Packet::SpawnEntity &pack) {
 456         if (!state) {
 457                 cout << "got entity spawn before world was created" << endl;
 458                 return;
 459         }
 460         state->Handle(pack);
 461 }
 462
 463 void MasterState::On(const Packet::DespawnEntity &pack) {
 464         if (!state) {
 465                 cout << "got entity despawn before world was created" << endl;
 466                 return;
 467         }
 468         state->Handle(pack);
 469 }
 470
 471 void MasterState::On(const Packet::EntityUpdate &pack) {
 472         if (!state) {
 473                 cout << "got entity update before world was created" << endl;
 474                 return;
 475         }
 476         state->Handle(pack);
 477 }
 478
 479 void MasterState::On(const Packet::PlayerCorrection &pack) {
 480         if (!state) {
 481                 cout << "got player correction without a player :S" << endl;
 482                 return;
 483         }
 484         state->Handle(pack);
 485 }
 486
 487 void MasterState::On(const Packet::ChunkBegin &pack) {
 488         if (!state) {
 489                 cout << "got chunk data, but the world has not been created yet" << endl;
 490                 cout << "great, this will totally screw up everything :(" << endl;
 491                 return;
 492         }
 493         state->GetChunkReceiver().Handle(pack);
 494 }
 495
 496 void MasterState::On(const Packet::ChunkData &pack) {
 497         if (!state) {
 498                 cout << "got chunk data, but the world has not been created yet" << endl;
 499                 cout << "great, this will totally screw up everything :(" << endl;
 500                 return;
 501         }
 502         state->GetChunkReceiver().Handle(pack);
 503 }
 504
 505 void MasterState::On(const Packet::BlockUpdate &pack) {
 506         if (!state) {
 507                 cout << "received block update, but the world has not been created yet" << endl;
 508                 return;
 509         }
 510         state->Handle(pack);
 511 }
 512
 513 void MasterState::On(const Packet::Message &pack) {
 514         if (state) {
 515                 state->Handle(pack);
 516         } else {
 517                 string msg;
 518                 pack.ReadMessage(msg);
 519                 cout << "got message before interface was created: " << msg << endl;
 520         }
 521 }
 522
 523 }
 524 }