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