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