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         if (!save.Exists()) {
  67                 save.Write(master.GetWorldConf());
  68         }
  69         res.Load(master.GetEnv().loader, "default");
  70         if (res.models.size() < 1) {
  71                 throw std::runtime_error("need at least one model to run");
  72         }
  73         res.models[0].Instantiate(player.GetEntity().GetModel());
  74         sounds.Load(master.GetEnv().loader, res.snd_index);
  75         interface.SetInventorySlots(res.block_types.size() - 1);
  76         chunk_renderer.LoadTextures(master.GetEnv().loader, res.tex_index);
  77         chunk_renderer.FogDensity(master.GetWorldConf().fog_density);
  78         loop_timer.Start();
  79         stat_timer.Start();
  80         if (save.Exists(player)) {
  81                 save.Read(player);
  82         }
  83 }
  84
  85 void InteractiveState::OnResume() {
  86         OnFocus();
  87 }
  88
  89 void InteractiveState::OnPause() {
  90         OnBlur();
  91 }
  92
  93 void InteractiveState::OnFocus() {
  94         if (master.GetConfig().input.mouse) {
  95                 master.GetEnv().window.GrabMouse();
  96         }
  97         interface.Unlock();
  98 }
  99
 100 void InteractiveState::OnBlur() {
 101         master.GetEnv().window.ReleaseMouse();
 102         interface.Lock();
 103 }
 104
 105 void InteractiveState::Handle(const SDL_Event &event) {
 106         switch (event.type) {
 107                 case SDL_KEYDOWN:
 108                         // TODO: move to interface
 109                         if (event.key.keysym.sym == SDLK_RETURN) {
 110                                 chat.Clear();
 111                                 master.GetEnv().state.Push(&chat);
 112                                 hud.KeepMessages(true);
 113                         } else if (event.key.keysym.sym == SDLK_SLASH) {
 114                                 chat.Preset("/");
 115                                 master.GetEnv().state.Push(&chat);
 116                                 hud.KeepMessages(true);
 117                         } else {
 118                                 interface.HandlePress(event.key);
 119                         }
 120                         break;
 121                 case SDL_KEYUP:
 122                         interface.HandleRelease(event.key);
 123                         break;
 124                 case SDL_MOUSEBUTTONDOWN:
 125                         interface.HandlePress(event.button);
 126                         break;
 127                 case SDL_MOUSEBUTTONUP:
 128                         interface.HandleRelease(event.button);
 129                         break;
 130                 case SDL_MOUSEMOTION:
 131                         interface.Handle(event.motion);
 132                         break;
 133                 case SDL_MOUSEWHEEL:
 134                         interface.Handle(event.wheel);
 135                         break;
 136                 case SDL_QUIT:
 137                         Exit();
 138                         break;
 139                 default:
 140                         break;
 141         }
 142 }
 143
 144 void InteractiveState::Update(int dt) {
 145         loop_timer.Update(dt);
 146         stat_timer.Update(dt);
 147         master.Update(dt);
 148         chunk_receiver.Update(dt);
 149
 150         int world_dt = 0;
 151         while (loop_timer.HitOnce()) {
 152                 world.Update(loop_timer.Interval());
 153                 world_dt += loop_timer.Interval();
 154                 loop_timer.PopIteration();
 155         }
 156         chunk_renderer.Update(dt);
 157
 158         if (input.BlockFocus()) {
 159                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 160         } else if (input.EntityFocus()) {
 161                 hud.FocusEntity(*input.EntityFocus().entity);
 162         } else {
 163                 hud.FocusNone();
 164         }
 165         if (world_dt > 0) {
 166                 input.PushPlayerUpdate(world_dt);
 167         }
 168         hud.Display(res.block_types[player.GetInventorySlot() + 1]);
 169         if (stat_timer.Hit()) {
 170                 hud.UpdateNetStats(master);
 171         }
 172         hud.Update(dt);
 173
 174         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 175         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 176         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 177         master.GetEnv().audio.Position(player.GetEntity().Position());
 178         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 179         master.GetEnv().audio.Orientation(dir, up);
 180 }
 181
 182 void InteractiveState::Render(Viewport &viewport) {
 183         viewport.WorldPosition(
 184                 player.GetEntity().Transform(player.GetEntity().ChunkCoords())
 185                 * player.GetEntity().GetModel().EyesTransform());
 186         if (master.GetConfig().video.world) {
 187                 chunk_renderer.Render(viewport);
 188                 world.Render(viewport);
 189                 sky.Render(viewport);
 190         }
 191         hud.Render(viewport);
 192 }
 193
 194 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 195         uint32_t entity_id;
 196         pack.ReadEntityID(entity_id);
 197         Entity &entity = world.ForceAddEntity(entity_id);
 198         UpdateEntity(entity_id, pack.Seq());
 199         pack.ReadEntity(entity);
 200         uint32_t model_id;
 201         pack.ReadModelID(model_id);
 202         if (model_id > 0 && model_id <= res.models.size()) {
 203                 res.models.Get(model_id).Instantiate(entity.GetModel());
 204         }
 205 }
 206
 207 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 208         uint32_t entity_id;
 209         pack.ReadEntityID(entity_id);
 210         ClearEntity(entity_id);
 211         for (Entity &entity : world.Entities()) {
 212                 if (entity.ID() == entity_id) {
 213                         entity.Kill();
 214                         return;
 215                 }
 216         }
 217 }
 218
 219 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 220         auto world_iter = world.Entities().begin();
 221         auto world_end = world.Entities().end();
 222
 223         uint32_t count = 0;
 224         glm::ivec3 base;
 225         pack.ReadEntityCount(count);
 226         pack.ReadChunkBase(base);
 227         EntityState state;
 228
 229         for (uint32_t i = 0; i < count; ++i) {
 230                 uint32_t entity_id = 0;
 231                 pack.ReadEntityID(entity_id, i);
 232
 233                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 234                         ++world_iter;
 235                 }
 236                 if (world_iter == world_end) {
 237                         // nothing can be done from here
 238                         return;
 239                 }
 240                 if (world_iter->ID() == entity_id) {
 241                         if (UpdateEntity(entity_id, pack.Seq())) {
 242                                 pack.ReadEntityState(state, base, i);
 243                                 world_iter->SetState(state);
 244                         }
 245                 }
 246         }
 247 }
 248
 249 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 250         auto entry = update_status.find(entity_id);
 251         if (entry == update_status.end()) {
 252                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 253                 return true;
 254         }
 255
 256         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 257         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 258         entry->second.last_update = loop_timer.Elapsed();
 259
 260         if (pack_diff > 0 || time_diff > 1500) {
 261                 entry->second.last_packet = seq;
 262                 return true;
 263         } else {
 264                 return false;
 265         }
 266 }
 267
 268 void InteractiveState::ClearEntity(uint32_t entity_id) {
 269         update_status.erase(entity_id);
 270 }
 271
 272 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 273         uint16_t pack_seq;
 274         EntityState corrected_state;
 275         pack.ReadPacketSeq(pack_seq);
 276         pack.ReadPlayerState(corrected_state);
 277         input.MergePlayerCorrection(pack_seq, corrected_state);
 278 }
 279
 280 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 281         glm::ivec3 pos;
 282         pack.ReadChunkCoords(pos);
 283         Chunk *chunk = player.GetChunks().Get(pos);
 284         if (!chunk) {
 285                 // this change doesn't concern us
 286                 return;
 287         }
 288         uint32_t count = 0;
 289         pack.ReadBlockCount(count);
 290         for (uint32_t i = 0; i < count; ++i) {
 291                 uint16_t index;
 292                 Block block;
 293                 pack.ReadIndex(index, i);
 294                 pack.ReadBlock(block, i);
 295                 if (index < Chunk::size && block.type < res.block_types.size()) {
 296                         manip.SetBlock(*chunk, index, block);
 297                 }
 298         }
 299 }
 300
 301 void InteractiveState::Handle(const Packet::Message &pack) {
 302         string msg;
 303         pack.ReadMessage(msg);
 304         hud.PostMessage(msg);
 305 }
 306
 307 void InteractiveState::SetAudio(bool b) {
 308         master.GetConfig().audio.enabled = b;
 309         if (b) {
 310                 hud.PostMessage("Audio enabled");
 311         } else {
 312                 hud.PostMessage("Audio disabled");
 313         }
 314 }
 315
 316 void InteractiveState::SetVideo(bool b) {
 317         master.GetConfig().video.world = b;
 318         if (b) {
 319                 hud.PostMessage("World rendering enabled");
 320         } else {
 321                 hud.PostMessage("World rendering disabled");
 322         }
 323 }
 324
 325 void InteractiveState::SetHUD(bool b) {
 326         master.GetConfig().video.hud = b;
 327         if (b) {
 328                 hud.PostMessage("HUD rendering enabled");
 329         } else {
 330                 hud.PostMessage("HUD rendering disabled");
 331         }
 332 }
 333
 334 void InteractiveState::SetDebug(bool b) {
 335         master.GetConfig().video.debug = b;
 336         if (b) {
 337                 hud.PostMessage("Debug rendering enabled");
 338         } else {
 339                 hud.PostMessage("Debug rendering disabled");
 340         }
 341 }
 342
 343 void InteractiveState::Exit() {
 344         save.Write(player);
 345         master.Quit();
 346 }
 347
 348 void InteractiveState::OnLineSubmit(const string &line) {
 349         if (!line.empty()) {
 350                 master.GetClient().SendMessage(1, 0, line);
 351         }
 352 }
 353
 354
 355 MasterState::MasterState(
 356         Environment &env,
 357         Config &config,
 358         const World::Config &wc)
 359 : env(env)
 360 , config(config)
 361 , world_conf(wc)
 362 , state()
 363 , client(config.net)
 364 , init_state(*this)
 365 , login_packet(-1) {
 366         client.GetConnection().SetHandler(this);
 367 }
 368
 369 void MasterState::Quit() {
 370         if (!client.GetConnection().Closed()) {
 371                 client.SendPart();
 372         }
 373         env.state.PopUntil(this);
 374 }
 375
 376
 377 void MasterState::OnEnter() {
 378         login_packet = client.SendLogin(config.player.name);
 379         env.state.Push(&init_state);
 380 }
 381
 382
 383 void MasterState::Handle(const SDL_Event &event) {
 384
 385 }
 386
 387
 388 void MasterState::Update(int dt) {
 389         client.Handle();
 390         client.Update(dt);
 391 }
 392
 393
 394 void MasterState::Render(Viewport &) {
 395
 396 }
 397
 398
 399 void MasterState::OnPacketLost(uint16_t id) {
 400         if (id == login_packet) {
 401                 login_packet = client.SendLogin(config.player.name);
 402         }
 403 }
 404
 405 void MasterState::OnTimeout() {
 406         if (client.GetConnection().Closed()) {
 407                 Quit();
 408                 env.ShowMessage("connection timed out");
 409         }
 410 }
 411
 412 void MasterState::On(const Packet::Join &pack) {
 413         pack.ReadWorldName(world_conf.name);
 414
 415         if (state) {
 416                 // changing worlds
 417                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 418         } else {
 419                 // joining game
 420                 cout << "joined game \"" << world_conf.name << '"' << endl;
 421                 // server received our login
 422                 login_packet = -1;
 423         }
 424
 425         uint32_t player_id;
 426         pack.ReadPlayerID(player_id);
 427         state.reset(new InteractiveState(*this, player_id));
 428
 429         EntityState player_state;
 430         pack.ReadPlayerState(player_state);
 431         state->GetPlayer().GetEntity().SetState(player_state);
 432
 433         env.state.PopAfter(this);
 434         env.state.Push(state.get());
 435 }
 436
 437 void MasterState::On(const Packet::Part &pack) {
 438         Quit();
 439         if (state) {
 440                 // kicked
 441                 env.ShowMessage("kicked by server");
 442         } else {
 443                 // join refused
 444                 env.ShowMessage("login refused by server");
 445         }
 446 }
 447
 448 void MasterState::On(const Packet::SpawnEntity &pack) {
 449         if (!state) {
 450                 cout << "got entity spawn before world was created" << endl;
 451                 return;
 452         }
 453         state->Handle(pack);
 454 }
 455
 456 void MasterState::On(const Packet::DespawnEntity &pack) {
 457         if (!state) {
 458                 cout << "got entity despawn before world was created" << endl;
 459                 return;
 460         }
 461         state->Handle(pack);
 462 }
 463
 464 void MasterState::On(const Packet::EntityUpdate &pack) {
 465         if (!state) {
 466                 cout << "got entity update before world was created" << endl;
 467                 return;
 468         }
 469         state->Handle(pack);
 470 }
 471
 472 void MasterState::On(const Packet::PlayerCorrection &pack) {
 473         if (!state) {
 474                 cout << "got player correction without a player :S" << endl;
 475                 return;
 476         }
 477         state->Handle(pack);
 478 }
 479
 480 void MasterState::On(const Packet::ChunkBegin &pack) {
 481         if (!state) {
 482                 cout << "got chunk data, but the world has not been created yet" << endl;
 483                 cout << "great, this will totally screw up everything :(" << endl;
 484                 return;
 485         }
 486         state->GetChunkReceiver().Handle(pack);
 487 }
 488
 489 void MasterState::On(const Packet::ChunkData &pack) {
 490         if (!state) {
 491                 cout << "got chunk data, but the world has not been created yet" << endl;
 492                 cout << "great, this will totally screw up everything :(" << endl;
 493                 return;
 494         }
 495         state->GetChunkReceiver().Handle(pack);
 496 }
 497
 498 void MasterState::On(const Packet::BlockUpdate &pack) {
 499         if (!state) {
 500                 cout << "received block update, but the world has not been created yet" << endl;
 501                 return;
 502         }
 503         state->Handle(pack);
 504 }
 505
 506 void MasterState::On(const Packet::Message &pack) {
 507         if (state) {
 508                 state->Handle(pack);
 509         } else {
 510                 string msg;
 511                 pack.ReadMessage(msg);
 512                 cout << "got message before interface was created: " << msg << endl;
 513         }
 514 }
 515
 516 }
 517 }