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 "../app/TextureIndex.hpp"
   8 #include "../model/Model.hpp"
   9 #include "../io/WorldSave.hpp"
  10 #include "../world/ChunkIndex.hpp"
  11 #include "../world/ChunkStore.hpp"
  12
  13 #include <iostream>
  14 #include <glm/gtx/io.hpp>
  15
  16 using namespace std;
  17
  18
  19 namespace blank {
  20 namespace client {
  21
  22 InitialState::InitialState(MasterState &master)
  23 : master(master)
  24 , message() {
  25         message.Position(glm::vec3(0.0f), Gravity::CENTER);
  26         message.Set(master.GetEnv().assets.large_ui_font, "logging in");
  27 }
  28
  29 void InitialState::OnEnter() {
  30
  31 }
  32
  33 void InitialState::Handle(const SDL_Event &evt) {
  34         if (evt.type == SDL_QUIT) {
  35                 master.Quit();
  36         }
  37 }
  38
  39 void InitialState::Update(int dt) {
  40         master.Update(dt);
  41 }
  42
  43 void InitialState::Render(Viewport &viewport) {
  44         message.Render(viewport);
  45 }
  46
  47
  48 // TODO: this clutter is a giant mess
  49 InteractiveState::InteractiveState(MasterState &master, uint32_t player_id)
  50 : master(master)
  51 , shapes()
  52 , block_types()
  53 , save(master.GetEnv().config.GetWorldPath(master.GetWorldConf().name, master.GetConfig().net.host))
  54 , world(block_types, master.GetWorldConf())
  55 , player(*world.AddPlayer(master.GetConfig().player.name))
  56 , hud(master.GetEnv(), master.GetConfig(), player)
  57 , manip(master.GetEnv(), player.GetEntity())
  58 , input(world, player, master.GetClient())
  59 , interface(master.GetConfig(), master.GetEnv().keymap, input, *this)
  60 , chunk_receiver(world.Chunks(), save)
  61 , chunk_renderer(player.GetChunks())
  62 , skeletons()
  63 , loop_timer(16)
  64 , sky(master.GetEnv().loader.LoadCubeMap("skybox"))
  65 , tex_map()
  66 , update_status() {
  67         if (!save.Exists()) {
  68                 save.Write(master.GetWorldConf());
  69         }
  70         TextureIndex tex_index;
  71         master.GetEnv().loader.LoadShapes("default", shapes);
  72         master.GetEnv().loader.LoadBlockTypes("default", block_types, tex_index, shapes);
  73         skeletons.Load(shapes);
  74         tex_map.push_back(tex_index.GetID("rock-1"));
  75         tex_map.push_back(tex_index.GetID("rock-face"));
  76         interface.SetInventorySlots(block_types.size() - 1);
  77         chunk_renderer.LoadTextures(master.GetEnv().loader, tex_index);
  78         chunk_renderer.FogDensity(master.GetWorldConf().fog_density);
  79         loop_timer.Start();
  80         if (save.Exists(player)) {
  81                 save.Read(player);
  82         }
  83 }
  84
  85 void InteractiveState::OnEnter() {
  86         master.GetEnv().window.GrabMouse();
  87 }
  88
  89 void InteractiveState::Handle(const SDL_Event &event) {
  90         switch (event.type) {
  91                 case SDL_KEYDOWN:
  92                         interface.HandlePress(event.key);
  93                         break;
  94                 case SDL_KEYUP:
  95                         interface.HandleRelease(event.key);
  96                         break;
  97                 case SDL_MOUSEBUTTONDOWN:
  98                         interface.HandlePress(event.button);
  99                         break;
 100                 case SDL_MOUSEBUTTONUP:
 101                         interface.HandleRelease(event.button);
 102                         break;
 103                 case SDL_MOUSEMOTION:
 104                         interface.Handle(event.motion);
 105                         break;
 106                 case SDL_MOUSEWHEEL:
 107                         interface.Handle(event.wheel);
 108                         break;
 109                 case SDL_QUIT:
 110                         Exit();
 111                         break;
 112                 default:
 113                         break;
 114         }
 115 }
 116
 117 void InteractiveState::Update(int dt) {
 118         input.Update(dt);
 119         if (input.BlockFocus()) {
 120                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 121         } else if (input.EntityFocus()) {
 122                 hud.FocusEntity(*input.EntityFocus().entity);
 123         } else {
 124                 hud.FocusNone();
 125         }
 126         hud.Display(block_types[player.GetInventorySlot() + 1]);
 127         loop_timer.Update(dt);
 128         master.Update(dt);
 129         chunk_receiver.Update(dt);
 130
 131         hud.Update(dt);
 132         int world_dt = 0;
 133         while (loop_timer.HitOnce()) {
 134                 world.Update(loop_timer.Interval());
 135                 world_dt += loop_timer.Interval();
 136                 loop_timer.PopIteration();
 137         }
 138         chunk_renderer.Update(dt);
 139
 140         if (world_dt > 0) {
 141                 input.PushPlayerUpdate(world_dt);
 142         }
 143
 144         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 145         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 146         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 147         master.GetEnv().audio.Position(player.GetEntity().Position());
 148         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 149         master.GetEnv().audio.Orientation(dir, up);
 150 }
 151
 152 void InteractiveState::Render(Viewport &viewport) {
 153         viewport.WorldPosition(player.GetEntity().Transform(player.GetEntity().ChunkCoords()));
 154         if (master.GetConfig().video.world) {
 155                 chunk_renderer.Render(viewport);
 156                 world.Render(viewport);
 157                 sky.Render(viewport);
 158         }
 159         hud.Render(viewport);
 160 }
 161
 162 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 163         uint32_t entity_id;
 164         pack.ReadEntityID(entity_id);
 165         Entity &entity = world.ForceAddEntity(entity_id);
 166         UpdateEntity(entity_id, pack.Seq());
 167         pack.ReadEntity(entity);
 168         uint32_t skel_id;
 169         pack.ReadSkeletonID(skel_id);
 170         Model *skel = skeletons.ByID(skel_id);
 171         if (skel) {
 172                 skel->Instantiate(entity.GetModel());
 173                 entity.GetModel().SetTextures(tex_map);
 174         }
 175         cout << "spawned entity #" << entity_id << "  (" << entity.Name()
 176                 << ") at " << entity.AbsolutePosition() << endl;
 177 }
 178
 179 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 180         uint32_t entity_id;
 181         pack.ReadEntityID(entity_id);
 182         ClearEntity(entity_id);
 183         for (Entity &entity : world.Entities()) {
 184                 if (entity.ID() == entity_id) {
 185                         entity.Kill();
 186                         cout << "despawned entity #" << entity_id << " (" << entity.Name() << ") at " << entity.AbsolutePosition() << endl;
 187                         return;
 188                 }
 189         }
 190 }
 191
 192 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 193         auto world_iter = world.Entities().begin();
 194         auto world_end = world.Entities().end();
 195
 196         uint32_t count = 0;
 197         pack.ReadEntityCount(count);
 198
 199         for (uint32_t i = 0; i < count; ++i) {
 200                 uint32_t entity_id = 0;
 201                 pack.ReadEntityID(entity_id, i);
 202
 203                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 204                         ++world_iter;
 205                 }
 206                 if (world_iter == world_end) {
 207                         // nothing can be done from here
 208                         return;
 209                 }
 210                 if (world_iter->ID() == entity_id) {
 211                         if (UpdateEntity(entity_id, pack.Seq())) {
 212                                 pack.ReadEntityState(world_iter->GetState(), i);
 213                         }
 214                 }
 215         }
 216 }
 217
 218 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 219         auto entry = update_status.find(entity_id);
 220         if (entry == update_status.end()) {
 221                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 222                 return true;
 223         }
 224
 225         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 226         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 227         entry->second.last_update = loop_timer.Elapsed();
 228
 229         if (pack_diff > 0 || time_diff > 1500) {
 230                 entry->second.last_packet = seq;
 231                 return true;
 232         } else {
 233                 return false;
 234         }
 235 }
 236
 237 void InteractiveState::ClearEntity(uint32_t entity_id) {
 238         update_status.erase(entity_id);
 239 }
 240
 241 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 242         uint16_t pack_seq;
 243         EntityState corrected_state;
 244         pack.ReadPacketSeq(pack_seq);
 245         pack.ReadPlayerState(corrected_state);
 246         input.MergePlayerCorrection(pack_seq, corrected_state);
 247 }
 248
 249 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 250         glm::ivec3 pos;
 251         pack.ReadChunkCoords(pos);
 252         Chunk *chunk = player.GetChunks().Get(pos);
 253         if (!chunk) {
 254                 // this change doesn't concern us
 255                 return;
 256         }
 257         uint32_t count = 0;
 258         pack.ReadBlockCount(count);
 259         for (uint32_t i = 0; i < count; ++i) {
 260                 uint16_t index;
 261                 Block block;
 262                 pack.ReadIndex(index, i);
 263                 pack.ReadBlock(block, i);
 264                 if (index < Chunk::size && block.type < block_types.size()) {
 265                         manip.SetBlock(*chunk, index, block);
 266                 }
 267         }
 268 }
 269
 270 void InteractiveState::SetAudio(bool b) {
 271         master.GetConfig().audio.enabled = b;
 272         if (b) {
 273                 hud.PostMessage("Audio enabled");
 274         } else {
 275                 hud.PostMessage("Audio disabled");
 276         }
 277 }
 278
 279 void InteractiveState::SetVideo(bool b) {
 280         master.GetConfig().video.world = b;
 281         if (b) {
 282                 hud.PostMessage("World rendering enabled");
 283         } else {
 284                 hud.PostMessage("World rendering disabled");
 285         }
 286 }
 287
 288 void InteractiveState::SetHUD(bool b) {
 289         master.GetConfig().video.hud = b;
 290         if (b) {
 291                 hud.PostMessage("HUD rendering enabled");
 292         } else {
 293                 hud.PostMessage("HUD rendering disabled");
 294         }
 295 }
 296
 297 void InteractiveState::SetDebug(bool b) {
 298         master.GetConfig().video.debug = b;
 299         if (b) {
 300                 hud.PostMessage("Debug rendering enabled");
 301         } else {
 302                 hud.PostMessage("Debug rendering disabled");
 303         }
 304 }
 305
 306 void InteractiveState::Exit() {
 307         save.Write(player);
 308         master.Quit();
 309 }
 310
 311
 312 MasterState::MasterState(
 313         Environment &env,
 314         Config &config,
 315         const World::Config &wc)
 316 : env(env)
 317 , config(config)
 318 , world_conf(wc)
 319 , state()
 320 , client(config.net)
 321 , init_state(*this)
 322 , login_packet(-1) {
 323         client.GetConnection().SetHandler(this);
 324 }
 325
 326 void MasterState::Quit() {
 327         if (!client.GetConnection().Closed()) {
 328                 client.SendPart();
 329         }
 330         env.state.PopUntil(this);
 331 }
 332
 333
 334 void MasterState::OnEnter() {
 335         login_packet = client.SendLogin(config.player.name);
 336         env.state.Push(&init_state);
 337 }
 338
 339
 340 void MasterState::Handle(const SDL_Event &event) {
 341
 342 }
 343
 344
 345 void MasterState::Update(int dt) {
 346         client.Handle();
 347         client.Update(dt);
 348 }
 349
 350
 351 void MasterState::Render(Viewport &) {
 352
 353 }
 354
 355
 356 void MasterState::OnPacketLost(uint16_t id) {
 357         if (id == login_packet) {
 358                 login_packet = client.SendLogin(config.player.name);
 359         }
 360 }
 361
 362 void MasterState::OnTimeout() {
 363         if (client.GetConnection().Closed()) {
 364                 Quit();
 365                 env.ShowMessage("connection timed out");
 366         }
 367 }
 368
 369 void MasterState::On(const Packet::Join &pack) {
 370         pack.ReadWorldName(world_conf.name);
 371
 372         if (state) {
 373                 // changing worlds
 374                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 375         } else {
 376                 // joining game
 377                 cout << "joined game \"" << world_conf.name << '"' << endl;
 378                 // server received our login
 379                 login_packet = -1;
 380         }
 381
 382         uint32_t player_id;
 383         pack.ReadPlayerID(player_id);
 384         state.reset(new InteractiveState(*this, player_id));
 385
 386         pack.ReadPlayerState(state->GetPlayer().GetEntity().GetState());
 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 }