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