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         if (!save.Exists()) {
  65                 save.Write(master.GetWorldConf());
  66         }
  67         res.Load(master.GetEnv().loader, "default");
  68         if (res.models.size() < 1) {
  69                 throw std::runtime_error("need at least one model to run");
  70         }
  71         res.models[0].Instantiate(player.GetEntity().GetModel());
  72         sounds.Load(master.GetEnv().loader, res.snd_index);
  73         interface.SetInventorySlots(res.block_types.size() - 1);
  74         chunk_renderer.LoadTextures(master.GetEnv().loader, res.tex_index);
  75         chunk_renderer.FogDensity(master.GetWorldConf().fog_density);
  76         loop_timer.Start();
  77         if (save.Exists(player)) {
  78                 save.Read(player);
  79         }
  80 }
  81
  82 void InteractiveState::OnEnter() {
  83         master.GetEnv().window.GrabMouse();
  84 }
  85
  86 void InteractiveState::Handle(const SDL_Event &event) {
  87         switch (event.type) {
  88                 case SDL_KEYDOWN:
  89                         interface.HandlePress(event.key);
  90                         break;
  91                 case SDL_KEYUP:
  92                         interface.HandleRelease(event.key);
  93                         break;
  94                 case SDL_MOUSEBUTTONDOWN:
  95                         interface.HandlePress(event.button);
  96                         break;
  97                 case SDL_MOUSEBUTTONUP:
  98                         interface.HandleRelease(event.button);
  99                         break;
 100                 case SDL_MOUSEMOTION:
 101                         interface.Handle(event.motion);
 102                         break;
 103                 case SDL_MOUSEWHEEL:
 104                         interface.Handle(event.wheel);
 105                         break;
 106                 case SDL_QUIT:
 107                         Exit();
 108                         break;
 109                 default:
 110                         break;
 111         }
 112 }
 113
 114 void InteractiveState::Update(int dt) {
 115         input.Update(dt);
 116         if (input.BlockFocus()) {
 117                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 118         } else if (input.EntityFocus()) {
 119                 hud.FocusEntity(*input.EntityFocus().entity);
 120         } else {
 121                 hud.FocusNone();
 122         }
 123         hud.Display(res.block_types[player.GetInventorySlot() + 1]);
 124         loop_timer.Update(dt);
 125         master.Update(dt);
 126         chunk_receiver.Update(dt);
 127
 128         hud.Update(dt);
 129         int world_dt = 0;
 130         while (loop_timer.HitOnce()) {
 131                 world.Update(loop_timer.Interval());
 132                 world_dt += loop_timer.Interval();
 133                 loop_timer.PopIteration();
 134         }
 135         chunk_renderer.Update(dt);
 136
 137         if (world_dt > 0) {
 138                 input.PushPlayerUpdate(world_dt);
 139         }
 140
 141         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 142         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 143         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 144         master.GetEnv().audio.Position(player.GetEntity().Position());
 145         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 146         master.GetEnv().audio.Orientation(dir, up);
 147 }
 148
 149 void InteractiveState::Render(Viewport &viewport) {
 150         viewport.WorldPosition(
 151                 player.GetEntity().Transform(player.GetEntity().ChunkCoords())
 152                 * player.GetEntity().GetModel().EyesTransform());
 153         if (master.GetConfig().video.world) {
 154                 chunk_renderer.Render(viewport);
 155                 world.Render(viewport);
 156                 sky.Render(viewport);
 157         }
 158         hud.Render(viewport);
 159 }
 160
 161 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 162         uint32_t entity_id;
 163         pack.ReadEntityID(entity_id);
 164         Entity &entity = world.ForceAddEntity(entity_id);
 165         UpdateEntity(entity_id, pack.Seq());
 166         pack.ReadEntity(entity);
 167         uint32_t skel_id;
 168         pack.ReadSkeletonID(skel_id);
 169         if (skel_id > 0 && skel_id <= res.models.size()) {
 170                 Model &skel = res.models.Get(skel_id);
 171                 skel.Instantiate(entity.GetModel());
 172         }
 173         cout << "spawned entity #" << entity_id << "  (" << entity.Name()
 174                 << ") at " << entity.AbsolutePosition() << endl;
 175 }
 176
 177 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 178         uint32_t entity_id;
 179         pack.ReadEntityID(entity_id);
 180         ClearEntity(entity_id);
 181         for (Entity &entity : world.Entities()) {
 182                 if (entity.ID() == entity_id) {
 183                         entity.Kill();
 184                         cout << "despawned entity #" << entity_id << " (" << entity.Name() << ") at " << entity.AbsolutePosition() << endl;
 185                         return;
 186                 }
 187         }
 188 }
 189
 190 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 191         auto world_iter = world.Entities().begin();
 192         auto world_end = world.Entities().end();
 193
 194         uint32_t count = 0;
 195         pack.ReadEntityCount(count);
 196
 197         for (uint32_t i = 0; i < count; ++i) {
 198                 uint32_t entity_id = 0;
 199                 pack.ReadEntityID(entity_id, i);
 200
 201                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 202                         ++world_iter;
 203                 }
 204                 if (world_iter == world_end) {
 205                         // nothing can be done from here
 206                         return;
 207                 }
 208                 if (world_iter->ID() == entity_id) {
 209                         if (UpdateEntity(entity_id, pack.Seq())) {
 210                                 pack.ReadEntityState(world_iter->GetState(), i);
 211                         }
 212                 }
 213         }
 214 }
 215
 216 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 217         auto entry = update_status.find(entity_id);
 218         if (entry == update_status.end()) {
 219                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 220                 return true;
 221         }
 222
 223         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 224         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 225         entry->second.last_update = loop_timer.Elapsed();
 226
 227         if (pack_diff > 0 || time_diff > 1500) {
 228                 entry->second.last_packet = seq;
 229                 return true;
 230         } else {
 231                 return false;
 232         }
 233 }
 234
 235 void InteractiveState::ClearEntity(uint32_t entity_id) {
 236         update_status.erase(entity_id);
 237 }
 238
 239 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 240         uint16_t pack_seq;
 241         EntityState corrected_state;
 242         pack.ReadPacketSeq(pack_seq);
 243         pack.ReadPlayerState(corrected_state);
 244         input.MergePlayerCorrection(pack_seq, corrected_state);
 245 }
 246
 247 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 248         glm::ivec3 pos;
 249         pack.ReadChunkCoords(pos);
 250         Chunk *chunk = player.GetChunks().Get(pos);
 251         if (!chunk) {
 252                 // this change doesn't concern us
 253                 return;
 254         }
 255         uint32_t count = 0;
 256         pack.ReadBlockCount(count);
 257         for (uint32_t i = 0; i < count; ++i) {
 258                 uint16_t index;
 259                 Block block;
 260                 pack.ReadIndex(index, i);
 261                 pack.ReadBlock(block, i);
 262                 if (index < Chunk::size && block.type < res.block_types.size()) {
 263                         manip.SetBlock(*chunk, index, block);
 264                 }
 265         }
 266 }
 267
 268 void InteractiveState::SetAudio(bool b) {
 269         master.GetConfig().audio.enabled = b;
 270         if (b) {
 271                 hud.PostMessage("Audio enabled");
 272         } else {
 273                 hud.PostMessage("Audio disabled");
 274         }
 275 }
 276
 277 void InteractiveState::SetVideo(bool b) {
 278         master.GetConfig().video.world = b;
 279         if (b) {
 280                 hud.PostMessage("World rendering enabled");
 281         } else {
 282                 hud.PostMessage("World rendering disabled");
 283         }
 284 }
 285
 286 void InteractiveState::SetHUD(bool b) {
 287         master.GetConfig().video.hud = b;
 288         if (b) {
 289                 hud.PostMessage("HUD rendering enabled");
 290         } else {
 291                 hud.PostMessage("HUD rendering disabled");
 292         }
 293 }
 294
 295 void InteractiveState::SetDebug(bool b) {
 296         master.GetConfig().video.debug = b;
 297         if (b) {
 298                 hud.PostMessage("Debug rendering enabled");
 299         } else {
 300                 hud.PostMessage("Debug rendering disabled");
 301         }
 302 }
 303
 304 void InteractiveState::Exit() {
 305         save.Write(player);
 306         master.Quit();
 307 }
 308
 309
 310 MasterState::MasterState(
 311         Environment &env,
 312         Config &config,
 313         const World::Config &wc)
 314 : env(env)
 315 , config(config)
 316 , world_conf(wc)
 317 , state()
 318 , client(config.net)
 319 , init_state(*this)
 320 , login_packet(-1) {
 321         client.GetConnection().SetHandler(this);
 322 }
 323
 324 void MasterState::Quit() {
 325         if (!client.GetConnection().Closed()) {
 326                 client.SendPart();
 327         }
 328         env.state.PopUntil(this);
 329 }
 330
 331
 332 void MasterState::OnEnter() {
 333         login_packet = client.SendLogin(config.player.name);
 334         env.state.Push(&init_state);
 335 }
 336
 337
 338 void MasterState::Handle(const SDL_Event &event) {
 339
 340 }
 341
 342
 343 void MasterState::Update(int dt) {
 344         client.Handle();
 345         client.Update(dt);
 346 }
 347
 348
 349 void MasterState::Render(Viewport &) {
 350
 351 }
 352
 353
 354 void MasterState::OnPacketLost(uint16_t id) {
 355         if (id == login_packet) {
 356                 login_packet = client.SendLogin(config.player.name);
 357         }
 358 }
 359
 360 void MasterState::OnTimeout() {
 361         if (client.GetConnection().Closed()) {
 362                 Quit();
 363                 env.ShowMessage("connection timed out");
 364         }
 365 }
 366
 367 void MasterState::On(const Packet::Join &pack) {
 368         pack.ReadWorldName(world_conf.name);
 369
 370         if (state) {
 371                 // changing worlds
 372                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 373         } else {
 374                 // joining game
 375                 cout << "joined game \"" << world_conf.name << '"' << endl;
 376                 // server received our login
 377                 login_packet = -1;
 378         }
 379
 380         uint32_t player_id;
 381         pack.ReadPlayerID(player_id);
 382         state.reset(new InteractiveState(*this, player_id));
 383
 384         pack.ReadPlayerState(state->GetPlayer().GetEntity().GetState());
 385         glm::vec3 orient(glm::eulerAngles(state->GetPlayer().GetEntity().Orientation()));
 386         state->GetPlayerController().TurnHead(orient.x, orient.y);
 387
 388         env.state.PopAfter(this);
 389         env.state.Push(state.get());
 390 }
 391
 392 void MasterState::On(const Packet::Part &pack) {
 393         Quit();
 394         if (state) {
 395                 // kicked
 396                 env.ShowMessage("kicked by server");
 397         } else {
 398                 // join refused
 399                 env.ShowMessage("login refused by server");
 400         }
 401 }
 402
 403 void MasterState::On(const Packet::SpawnEntity &pack) {
 404         if (!state) {
 405                 cout << "got entity spawn before world was created" << endl;
 406                 return;
 407         }
 408         state->Handle(pack);
 409 }
 410
 411 void MasterState::On(const Packet::DespawnEntity &pack) {
 412         if (!state) {
 413                 cout << "got entity despawn before world was created" << endl;
 414                 return;
 415         }
 416         state->Handle(pack);
 417 }
 418
 419 void MasterState::On(const Packet::EntityUpdate &pack) {
 420         if (!state) {
 421                 cout << "got entity update before world was created" << endl;
 422                 return;
 423         }
 424         state->Handle(pack);
 425 }
 426
 427 void MasterState::On(const Packet::PlayerCorrection &pack) {
 428         if (!state) {
 429                 cout << "got player correction without a player :S" << endl;
 430                 return;
 431         }
 432         state->Handle(pack);
 433 }
 434
 435 void MasterState::On(const Packet::ChunkBegin &pack) {
 436         if (!state) {
 437                 cout << "got chunk data, but the world has not been created yet" << endl;
 438                 cout << "great, this will totally screw up everything :(" << endl;
 439                 return;
 440         }
 441         state->GetChunkReceiver().Handle(pack);
 442 }
 443
 444 void MasterState::On(const Packet::ChunkData &pack) {
 445         if (!state) {
 446                 cout << "got chunk data, but the world has not been created yet" << endl;
 447                 cout << "great, this will totally screw up everything :(" << endl;
 448                 return;
 449         }
 450         state->GetChunkReceiver().Handle(pack);
 451 }
 452
 453 void MasterState::On(const Packet::BlockUpdate &pack) {
 454         if (!state) {
 455                 cout << "received block update, but the world has not been created yet" << endl;
 456                 return;
 457         }
 458         state->Handle(pack);
 459 }
 460
 461 }
 462 }