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(player.GetEntity().Transform(player.GetEntity().ChunkCoords()));
 151         if (master.GetConfig().video.world) {
 152                 chunk_renderer.Render(viewport);
 153                 world.Render(viewport);
 154                 sky.Render(viewport);
 155         }
 156         hud.Render(viewport);
 157 }
 158
 159 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 160         uint32_t entity_id;
 161         pack.ReadEntityID(entity_id);
 162         Entity &entity = world.ForceAddEntity(entity_id);
 163         UpdateEntity(entity_id, pack.Seq());
 164         pack.ReadEntity(entity);
 165         uint32_t skel_id;
 166         pack.ReadSkeletonID(skel_id);
 167         if (skel_id > 0 && skel_id <= res.models.size()) {
 168                 Model &skel = res.models.Get(skel_id);
 169                 skel.Instantiate(entity.GetModel());
 170         }
 171         cout << "spawned entity #" << entity_id << "  (" << entity.Name()
 172                 << ") at " << entity.AbsolutePosition() << endl;
 173 }
 174
 175 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 176         uint32_t entity_id;
 177         pack.ReadEntityID(entity_id);
 178         ClearEntity(entity_id);
 179         for (Entity &entity : world.Entities()) {
 180                 if (entity.ID() == entity_id) {
 181                         entity.Kill();
 182                         cout << "despawned entity #" << entity_id << " (" << entity.Name() << ") at " << entity.AbsolutePosition() << endl;
 183                         return;
 184                 }
 185         }
 186 }
 187
 188 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 189         auto world_iter = world.Entities().begin();
 190         auto world_end = world.Entities().end();
 191
 192         uint32_t count = 0;
 193         pack.ReadEntityCount(count);
 194
 195         for (uint32_t i = 0; i < count; ++i) {
 196                 uint32_t entity_id = 0;
 197                 pack.ReadEntityID(entity_id, i);
 198
 199                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 200                         ++world_iter;
 201                 }
 202                 if (world_iter == world_end) {
 203                         // nothing can be done from here
 204                         return;
 205                 }
 206                 if (world_iter->ID() == entity_id) {
 207                         if (UpdateEntity(entity_id, pack.Seq())) {
 208                                 pack.ReadEntityState(world_iter->GetState(), i);
 209                         }
 210                 }
 211         }
 212 }
 213
 214 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 215         auto entry = update_status.find(entity_id);
 216         if (entry == update_status.end()) {
 217                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 218                 return true;
 219         }
 220
 221         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 222         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 223         entry->second.last_update = loop_timer.Elapsed();
 224
 225         if (pack_diff > 0 || time_diff > 1500) {
 226                 entry->second.last_packet = seq;
 227                 return true;
 228         } else {
 229                 return false;
 230         }
 231 }
 232
 233 void InteractiveState::ClearEntity(uint32_t entity_id) {
 234         update_status.erase(entity_id);
 235 }
 236
 237 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 238         uint16_t pack_seq;
 239         EntityState corrected_state;
 240         pack.ReadPacketSeq(pack_seq);
 241         pack.ReadPlayerState(corrected_state);
 242         input.MergePlayerCorrection(pack_seq, corrected_state);
 243 }
 244
 245 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 246         glm::ivec3 pos;
 247         pack.ReadChunkCoords(pos);
 248         Chunk *chunk = player.GetChunks().Get(pos);
 249         if (!chunk) {
 250                 // this change doesn't concern us
 251                 return;
 252         }
 253         uint32_t count = 0;
 254         pack.ReadBlockCount(count);
 255         for (uint32_t i = 0; i < count; ++i) {
 256                 uint16_t index;
 257                 Block block;
 258                 pack.ReadIndex(index, i);
 259                 pack.ReadBlock(block, i);
 260                 if (index < Chunk::size && block.type < res.block_types.size()) {
 261                         manip.SetBlock(*chunk, index, block);
 262                 }
 263         }
 264 }
 265
 266 void InteractiveState::SetAudio(bool b) {
 267         master.GetConfig().audio.enabled = b;
 268         if (b) {
 269                 hud.PostMessage("Audio enabled");
 270         } else {
 271                 hud.PostMessage("Audio disabled");
 272         }
 273 }
 274
 275 void InteractiveState::SetVideo(bool b) {
 276         master.GetConfig().video.world = b;
 277         if (b) {
 278                 hud.PostMessage("World rendering enabled");
 279         } else {
 280                 hud.PostMessage("World rendering disabled");
 281         }
 282 }
 283
 284 void InteractiveState::SetHUD(bool b) {
 285         master.GetConfig().video.hud = b;
 286         if (b) {
 287                 hud.PostMessage("HUD rendering enabled");
 288         } else {
 289                 hud.PostMessage("HUD rendering disabled");
 290         }
 291 }
 292
 293 void InteractiveState::SetDebug(bool b) {
 294         master.GetConfig().video.debug = b;
 295         if (b) {
 296                 hud.PostMessage("Debug rendering enabled");
 297         } else {
 298                 hud.PostMessage("Debug rendering disabled");
 299         }
 300 }
 301
 302 void InteractiveState::Exit() {
 303         save.Write(player);
 304         master.Quit();
 305 }
 306
 307
 308 MasterState::MasterState(
 309         Environment &env,
 310         Config &config,
 311         const World::Config &wc)
 312 : env(env)
 313 , config(config)
 314 , world_conf(wc)
 315 , state()
 316 , client(config.net)
 317 , init_state(*this)
 318 , login_packet(-1) {
 319         client.GetConnection().SetHandler(this);
 320 }
 321
 322 void MasterState::Quit() {
 323         if (!client.GetConnection().Closed()) {
 324                 client.SendPart();
 325         }
 326         env.state.PopUntil(this);
 327 }
 328
 329
 330 void MasterState::OnEnter() {
 331         login_packet = client.SendLogin(config.player.name);
 332         env.state.Push(&init_state);
 333 }
 334
 335
 336 void MasterState::Handle(const SDL_Event &event) {
 337
 338 }
 339
 340
 341 void MasterState::Update(int dt) {
 342         client.Handle();
 343         client.Update(dt);
 344 }
 345
 346
 347 void MasterState::Render(Viewport &) {
 348
 349 }
 350
 351
 352 void MasterState::OnPacketLost(uint16_t id) {
 353         if (id == login_packet) {
 354                 login_packet = client.SendLogin(config.player.name);
 355         }
 356 }
 357
 358 void MasterState::OnTimeout() {
 359         if (client.GetConnection().Closed()) {
 360                 Quit();
 361                 env.ShowMessage("connection timed out");
 362         }
 363 }
 364
 365 void MasterState::On(const Packet::Join &pack) {
 366         pack.ReadWorldName(world_conf.name);
 367
 368         if (state) {
 369                 // changing worlds
 370                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 371         } else {
 372                 // joining game
 373                 cout << "joined game \"" << world_conf.name << '"' << endl;
 374                 // server received our login
 375                 login_packet = -1;
 376         }
 377
 378         uint32_t player_id;
 379         pack.ReadPlayerID(player_id);
 380         state.reset(new InteractiveState(*this, player_id));
 381
 382         pack.ReadPlayerState(state->GetPlayer().GetEntity().GetState());
 383
 384         env.state.PopAfter(this);
 385         env.state.Push(state.get());
 386 }
 387
 388 void MasterState::On(const Packet::Part &pack) {
 389         Quit();
 390         if (state) {
 391                 // kicked
 392                 env.ShowMessage("kicked by server");
 393         } else {
 394                 // join refused
 395                 env.ShowMessage("login refused by server");
 396         }
 397 }
 398
 399 void MasterState::On(const Packet::SpawnEntity &pack) {
 400         if (!state) {
 401                 cout << "got entity spawn before world was created" << endl;
 402                 return;
 403         }
 404         state->Handle(pack);
 405 }
 406
 407 void MasterState::On(const Packet::DespawnEntity &pack) {
 408         if (!state) {
 409                 cout << "got entity despawn before world was created" << endl;
 410                 return;
 411         }
 412         state->Handle(pack);
 413 }
 414
 415 void MasterState::On(const Packet::EntityUpdate &pack) {
 416         if (!state) {
 417                 cout << "got entity update before world was created" << endl;
 418                 return;
 419         }
 420         state->Handle(pack);
 421 }
 422
 423 void MasterState::On(const Packet::PlayerCorrection &pack) {
 424         if (!state) {
 425                 cout << "got player correction without a player :S" << endl;
 426                 return;
 427         }
 428         state->Handle(pack);
 429 }
 430
 431 void MasterState::On(const Packet::ChunkBegin &pack) {
 432         if (!state) {
 433                 cout << "got chunk data, but the world has not been created yet" << endl;
 434                 cout << "great, this will totally screw up everything :(" << endl;
 435                 return;
 436         }
 437         state->GetChunkReceiver().Handle(pack);
 438 }
 439
 440 void MasterState::On(const Packet::ChunkData &pack) {
 441         if (!state) {
 442                 cout << "got chunk data, but the world has not been created yet" << endl;
 443                 cout << "great, this will totally screw up everything :(" << endl;
 444                 return;
 445         }
 446         state->GetChunkReceiver().Handle(pack);
 447 }
 448
 449 void MasterState::On(const Packet::BlockUpdate &pack) {
 450         if (!state) {
 451                 cout << "received block update, but the world has not been created yet" << endl;
 452                 return;
 453         }
 454         state->Handle(pack);
 455 }
 456
 457 }
 458 }