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