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 }
 200
 201 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 202         uint32_t entity_id;
 203         pack.ReadEntityID(entity_id);
 204         ClearEntity(entity_id);
 205         for (Entity &entity : world.Entities()) {
 206                 if (entity.ID() == entity_id) {
 207                         entity.Kill();
 208                         return;
 209                 }
 210         }
 211 }
 212
 213 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 214         auto world_iter = world.Entities().begin();
 215         auto world_end = world.Entities().end();
 216
 217         uint32_t count = 0;
 218         glm::ivec3 base;
 219         pack.ReadEntityCount(count);
 220         pack.ReadChunkBase(base);
 221         EntityState state;
 222
 223         for (uint32_t i = 0; i < count; ++i) {
 224                 uint32_t entity_id = 0;
 225                 pack.ReadEntityID(entity_id, i);
 226
 227                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 228                         ++world_iter;
 229                 }
 230                 if (world_iter == world_end) {
 231                         // nothing can be done from here
 232                         return;
 233                 }
 234                 if (world_iter->ID() == entity_id) {
 235                         if (UpdateEntity(entity_id, pack.Seq())) {
 236                                 pack.ReadEntityState(state, base, i);
 237                                 world_iter->SetState(state);
 238                         }
 239                 }
 240         }
 241 }
 242
 243 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 244         auto entry = update_status.find(entity_id);
 245         if (entry == update_status.end()) {
 246                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 247                 return true;
 248         }
 249
 250         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 251         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 252         entry->second.last_update = loop_timer.Elapsed();
 253
 254         if (pack_diff > 0 || time_diff > 1500) {
 255                 entry->second.last_packet = seq;
 256                 return true;
 257         } else {
 258                 return false;
 259         }
 260 }
 261
 262 void InteractiveState::ClearEntity(uint32_t entity_id) {
 263         update_status.erase(entity_id);
 264 }
 265
 266 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 267         uint16_t pack_seq;
 268         EntityState corrected_state;
 269         pack.ReadPacketSeq(pack_seq);
 270         pack.ReadPlayerState(corrected_state);
 271         input.MergePlayerCorrection(pack_seq, corrected_state);
 272 }
 273
 274 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 275         glm::ivec3 pos;
 276         pack.ReadChunkCoords(pos);
 277         Chunk *chunk = player.GetChunks().Get(pos);
 278         if (!chunk) {
 279                 // this change doesn't concern us
 280                 return;
 281         }
 282         uint32_t count = 0;
 283         pack.ReadBlockCount(count);
 284         for (uint32_t i = 0; i < count; ++i) {
 285                 uint16_t index;
 286                 Block block;
 287                 pack.ReadIndex(index, i);
 288                 pack.ReadBlock(block, i);
 289                 if (index < Chunk::size && block.type < res.block_types.size()) {
 290                         manip.SetBlock(*chunk, index, block);
 291                 }
 292         }
 293 }
 294
 295 void InteractiveState::Handle(const Packet::Message &pack) {
 296         string msg;
 297         pack.ReadMessage(msg);
 298         hud.PostMessage(msg);
 299 }
 300
 301 void InteractiveState::SetAudio(bool b) {
 302         master.GetConfig().audio.enabled = b;
 303         if (b) {
 304                 hud.PostMessage("Audio enabled");
 305         } else {
 306                 hud.PostMessage("Audio disabled");
 307         }
 308 }
 309
 310 void InteractiveState::SetVideo(bool b) {
 311         master.GetConfig().video.world = b;
 312         if (b) {
 313                 hud.PostMessage("World rendering enabled");
 314         } else {
 315                 hud.PostMessage("World rendering disabled");
 316         }
 317 }
 318
 319 void InteractiveState::SetHUD(bool b) {
 320         master.GetConfig().video.hud = b;
 321         if (b) {
 322                 hud.PostMessage("HUD rendering enabled");
 323         } else {
 324                 hud.PostMessage("HUD rendering disabled");
 325         }
 326 }
 327
 328 void InteractiveState::SetDebug(bool b) {
 329         master.GetConfig().video.debug = b;
 330         if (b) {
 331                 hud.PostMessage("Debug rendering enabled");
 332         } else {
 333                 hud.PostMessage("Debug rendering disabled");
 334         }
 335 }
 336
 337 void InteractiveState::Exit() {
 338         save.Write(player);
 339         master.Quit();
 340 }
 341
 342 void InteractiveState::OnLineSubmit(const string &line) {
 343         if (!line.empty()) {
 344                 master.GetClient().SendMessage(1, 0, line);
 345         }
 346 }
 347
 348
 349 MasterState::MasterState(
 350         Environment &env,
 351         Config &config,
 352         const World::Config &wc)
 353 : env(env)
 354 , config(config)
 355 , world_conf(wc)
 356 , state()
 357 , client(config.net)
 358 , init_state(*this)
 359 , login_packet(-1) {
 360         client.GetConnection().SetHandler(this);
 361 }
 362
 363 void MasterState::Quit() {
 364         if (!client.GetConnection().Closed()) {
 365                 client.SendPart();
 366         }
 367         env.state.PopUntil(this);
 368 }
 369
 370
 371 void MasterState::OnEnter() {
 372         login_packet = client.SendLogin(config.player.name);
 373         env.state.Push(&init_state);
 374 }
 375
 376
 377 void MasterState::Handle(const SDL_Event &event) {
 378
 379 }
 380
 381
 382 void MasterState::Update(int dt) {
 383         client.Handle();
 384         client.Update(dt);
 385 }
 386
 387
 388 void MasterState::Render(Viewport &) {
 389
 390 }
 391
 392
 393 void MasterState::OnPacketLost(uint16_t id) {
 394         if (id == login_packet) {
 395                 login_packet = client.SendLogin(config.player.name);
 396         }
 397 }
 398
 399 void MasterState::OnTimeout() {
 400         if (client.GetConnection().Closed()) {
 401                 Quit();
 402                 env.ShowMessage("connection timed out");
 403         }
 404 }
 405
 406 void MasterState::On(const Packet::Join &pack) {
 407         pack.ReadWorldName(world_conf.name);
 408
 409         if (state) {
 410                 // changing worlds
 411                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 412         } else {
 413                 // joining game
 414                 cout << "joined game \"" << world_conf.name << '"' << endl;
 415                 // server received our login
 416                 login_packet = -1;
 417         }
 418
 419         uint32_t player_id;
 420         pack.ReadPlayerID(player_id);
 421         state.reset(new InteractiveState(*this, player_id));
 422
 423         EntityState player_state;
 424         pack.ReadPlayerState(player_state);
 425         state->GetPlayer().GetEntity().SetState(player_state);
 426
 427         env.state.PopAfter(this);
 428         env.state.Push(state.get());
 429 }
 430
 431 void MasterState::On(const Packet::Part &pack) {
 432         Quit();
 433         if (state) {
 434                 // kicked
 435                 env.ShowMessage("kicked by server");
 436         } else {
 437                 // join refused
 438                 env.ShowMessage("login refused by server");
 439         }
 440 }
 441
 442 void MasterState::On(const Packet::SpawnEntity &pack) {
 443         if (!state) {
 444                 cout << "got entity spawn before world was created" << endl;
 445                 return;
 446         }
 447         state->Handle(pack);
 448 }
 449
 450 void MasterState::On(const Packet::DespawnEntity &pack) {
 451         if (!state) {
 452                 cout << "got entity despawn before world was created" << endl;
 453                 return;
 454         }
 455         state->Handle(pack);
 456 }
 457
 458 void MasterState::On(const Packet::EntityUpdate &pack) {
 459         if (!state) {
 460                 cout << "got entity update before world was created" << endl;
 461                 return;
 462         }
 463         state->Handle(pack);
 464 }
 465
 466 void MasterState::On(const Packet::PlayerCorrection &pack) {
 467         if (!state) {
 468                 cout << "got player correction without a player :S" << endl;
 469                 return;
 470         }
 471         state->Handle(pack);
 472 }
 473
 474 void MasterState::On(const Packet::ChunkBegin &pack) {
 475         if (!state) {
 476                 cout << "got chunk data, but the world has not been created yet" << endl;
 477                 cout << "great, this will totally screw up everything :(" << endl;
 478                 return;
 479         }
 480         state->GetChunkReceiver().Handle(pack);
 481 }
 482
 483 void MasterState::On(const Packet::ChunkData &pack) {
 484         if (!state) {
 485                 cout << "got chunk data, but the world has not been created yet" << endl;
 486                 cout << "great, this will totally screw up everything :(" << endl;
 487                 return;
 488         }
 489         state->GetChunkReceiver().Handle(pack);
 490 }
 491
 492 void MasterState::On(const Packet::BlockUpdate &pack) {
 493         if (!state) {
 494                 cout << "received block update, but the world has not been created yet" << endl;
 495                 return;
 496         }
 497         state->Handle(pack);
 498 }
 499
 500 void MasterState::On(const Packet::Message &pack) {
 501         if (state) {
 502                 state->Handle(pack);
 503         } else {
 504                 string msg;
 505                 pack.ReadMessage(msg);
 506                 cout << "got message before interface was created: " << msg << endl;
 507         }
 508 }
 509
 510 }
 511 }