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))
  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
 205         for (uint32_t i = 0; i < count; ++i) {
 206                 uint32_t entity_id = 0;
 207                 pack.ReadEntityID(entity_id, i);
 208
 209                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 210                         ++world_iter;
 211                 }
 212                 if (world_iter == world_end) {
 213                         // nothing can be done from here
 214                         return;
 215                 }
 216                 if (world_iter->ID() == entity_id) {
 217                         if (UpdateEntity(entity_id, pack.Seq())) {
 218                                 pack.ReadEntityState(world_iter->GetState(), base, i);
 219                         }
 220                 }
 221         }
 222 }
 223
 224 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 225         auto entry = update_status.find(entity_id);
 226         if (entry == update_status.end()) {
 227                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 228                 return true;
 229         }
 230
 231         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 232         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 233         entry->second.last_update = loop_timer.Elapsed();
 234
 235         if (pack_diff > 0 || time_diff > 1500) {
 236                 entry->second.last_packet = seq;
 237                 return true;
 238         } else {
 239                 return false;
 240         }
 241 }
 242
 243 void InteractiveState::ClearEntity(uint32_t entity_id) {
 244         update_status.erase(entity_id);
 245 }
 246
 247 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 248         uint16_t pack_seq;
 249         EntityState corrected_state;
 250         pack.ReadPacketSeq(pack_seq);
 251         pack.ReadPlayerState(corrected_state);
 252         input.MergePlayerCorrection(pack_seq, corrected_state);
 253 }
 254
 255 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 256         glm::ivec3 pos;
 257         pack.ReadChunkCoords(pos);
 258         Chunk *chunk = player.GetChunks().Get(pos);
 259         if (!chunk) {
 260                 // this change doesn't concern us
 261                 return;
 262         }
 263         uint32_t count = 0;
 264         pack.ReadBlockCount(count);
 265         for (uint32_t i = 0; i < count; ++i) {
 266                 uint16_t index;
 267                 Block block;
 268                 pack.ReadIndex(index, i);
 269                 pack.ReadBlock(block, i);
 270                 if (index < Chunk::size && block.type < res.block_types.size()) {
 271                         manip.SetBlock(*chunk, index, block);
 272                 }
 273         }
 274 }
 275
 276 void InteractiveState::Handle(const Packet::Message &pack) {
 277         string msg;
 278         pack.ReadMessage(msg);
 279         hud.PostMessage(msg);
 280 }
 281
 282 void InteractiveState::SetAudio(bool b) {
 283         master.GetConfig().audio.enabled = b;
 284         if (b) {
 285                 hud.PostMessage("Audio enabled");
 286         } else {
 287                 hud.PostMessage("Audio disabled");
 288         }
 289 }
 290
 291 void InteractiveState::SetVideo(bool b) {
 292         master.GetConfig().video.world = b;
 293         if (b) {
 294                 hud.PostMessage("World rendering enabled");
 295         } else {
 296                 hud.PostMessage("World rendering disabled");
 297         }
 298 }
 299
 300 void InteractiveState::SetHUD(bool b) {
 301         master.GetConfig().video.hud = b;
 302         if (b) {
 303                 hud.PostMessage("HUD rendering enabled");
 304         } else {
 305                 hud.PostMessage("HUD rendering disabled");
 306         }
 307 }
 308
 309 void InteractiveState::SetDebug(bool b) {
 310         master.GetConfig().video.debug = b;
 311         if (b) {
 312                 hud.PostMessage("Debug rendering enabled");
 313         } else {
 314                 hud.PostMessage("Debug rendering disabled");
 315         }
 316 }
 317
 318 void InteractiveState::Exit() {
 319         save.Write(player);
 320         master.Quit();
 321 }
 322
 323 void InteractiveState::OnLineSubmit(const string &line) {
 324         master.GetClient().SendMessage(1, 0, line);
 325 }
 326
 327
 328 MasterState::MasterState(
 329         Environment &env,
 330         Config &config,
 331         const World::Config &wc)
 332 : env(env)
 333 , config(config)
 334 , world_conf(wc)
 335 , state()
 336 , client(config.net)
 337 , init_state(*this)
 338 , login_packet(-1) {
 339         client.GetConnection().SetHandler(this);
 340 }
 341
 342 void MasterState::Quit() {
 343         if (!client.GetConnection().Closed()) {
 344                 client.SendPart();
 345         }
 346         env.state.PopUntil(this);
 347 }
 348
 349
 350 void MasterState::OnEnter() {
 351         login_packet = client.SendLogin(config.player.name);
 352         env.state.Push(&init_state);
 353 }
 354
 355
 356 void MasterState::Handle(const SDL_Event &event) {
 357
 358 }
 359
 360
 361 void MasterState::Update(int dt) {
 362         client.Handle();
 363         client.Update(dt);
 364 }
 365
 366
 367 void MasterState::Render(Viewport &) {
 368
 369 }
 370
 371
 372 void MasterState::OnPacketLost(uint16_t id) {
 373         if (id == login_packet) {
 374                 login_packet = client.SendLogin(config.player.name);
 375         }
 376 }
 377
 378 void MasterState::OnTimeout() {
 379         if (client.GetConnection().Closed()) {
 380                 Quit();
 381                 env.ShowMessage("connection timed out");
 382         }
 383 }
 384
 385 void MasterState::On(const Packet::Join &pack) {
 386         pack.ReadWorldName(world_conf.name);
 387
 388         if (state) {
 389                 // changing worlds
 390                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 391         } else {
 392                 // joining game
 393                 cout << "joined game \"" << world_conf.name << '"' << endl;
 394                 // server received our login
 395                 login_packet = -1;
 396         }
 397
 398         uint32_t player_id;
 399         pack.ReadPlayerID(player_id);
 400         state.reset(new InteractiveState(*this, player_id));
 401
 402         pack.ReadPlayerState(state->GetPlayer().GetEntity().GetState());
 403         glm::vec3 orient(glm::eulerAngles(state->GetPlayer().GetEntity().Orientation()));
 404         state->GetPlayerController().TurnHead(orient.x, orient.y);
 405
 406         env.state.PopAfter(this);
 407         env.state.Push(state.get());
 408 }
 409
 410 void MasterState::On(const Packet::Part &pack) {
 411         Quit();
 412         if (state) {
 413                 // kicked
 414                 env.ShowMessage("kicked by server");
 415         } else {
 416                 // join refused
 417                 env.ShowMessage("login refused by server");
 418         }
 419 }
 420
 421 void MasterState::On(const Packet::SpawnEntity &pack) {
 422         if (!state) {
 423                 cout << "got entity spawn before world was created" << endl;
 424                 return;
 425         }
 426         state->Handle(pack);
 427 }
 428
 429 void MasterState::On(const Packet::DespawnEntity &pack) {
 430         if (!state) {
 431                 cout << "got entity despawn before world was created" << endl;
 432                 return;
 433         }
 434         state->Handle(pack);
 435 }
 436
 437 void MasterState::On(const Packet::EntityUpdate &pack) {
 438         if (!state) {
 439                 cout << "got entity update before world was created" << endl;
 440                 return;
 441         }
 442         state->Handle(pack);
 443 }
 444
 445 void MasterState::On(const Packet::PlayerCorrection &pack) {
 446         if (!state) {
 447                 cout << "got player correction without a player :S" << endl;
 448                 return;
 449         }
 450         state->Handle(pack);
 451 }
 452
 453 void MasterState::On(const Packet::ChunkBegin &pack) {
 454         if (!state) {
 455                 cout << "got chunk data, but the world has not been created yet" << endl;
 456                 cout << "great, this will totally screw up everything :(" << endl;
 457                 return;
 458         }
 459         state->GetChunkReceiver().Handle(pack);
 460 }
 461
 462 void MasterState::On(const Packet::ChunkData &pack) {
 463         if (!state) {
 464                 cout << "got chunk data, but the world has not been created yet" << endl;
 465                 cout << "great, this will totally screw up everything :(" << endl;
 466                 return;
 467         }
 468         state->GetChunkReceiver().Handle(pack);
 469 }
 470
 471 void MasterState::On(const Packet::BlockUpdate &pack) {
 472         if (!state) {
 473                 cout << "received block update, but the world has not been created yet" << endl;
 474                 return;
 475         }
 476         state->Handle(pack);
 477 }
 478
 479 void MasterState::On(const Packet::Message &pack) {
 480         if (state) {
 481                 state->Handle(pack);
 482         } else {
 483                 string msg;
 484                 pack.ReadMessage(msg);
 485                 cout << "got message before interface was created: " << msg << endl;
 486         }
 487 }
 488
 489 }
 490 }