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 , save(master.GetEnv().config.GetWorldPath(master.GetWorldConf().name, master.GetConfig().net.host))
  52 , world(res.block_types, master.GetWorldConf())
  53 , player(*world.AddPlayer(master.GetConfig().player.name))
  54 , hud(master.GetEnv(), master.GetConfig(), player)
  55 , manip(master.GetEnv(), player.GetEntity())
  56 , input(world, player, master.GetClient())
  57 , interface(master.GetConfig(), master.GetEnv().keymap, input, *this)
  58 , chunk_receiver(world.Chunks(), save)
  59 , chunk_renderer(player.GetChunks())
  60 , loop_timer(16)
  61 , sky(master.GetEnv().loader.LoadCubeMap("skybox"))
  62 , update_status() {
  63         if (!save.Exists()) {
  64                 save.Write(master.GetWorldConf());
  65         }
  66         res.Load(master.GetEnv().loader, "default");
  67         interface.SetInventorySlots(res.block_types.size() - 1);
  68         chunk_renderer.LoadTextures(master.GetEnv().loader, res.tex_index);
  69         chunk_renderer.FogDensity(master.GetWorldConf().fog_density);
  70         loop_timer.Start();
  71         if (save.Exists(player)) {
  72                 save.Read(player);
  73         }
  74 }
  75
  76 void InteractiveState::OnEnter() {
  77         master.GetEnv().window.GrabMouse();
  78 }
  79
  80 void InteractiveState::Handle(const SDL_Event &event) {
  81         switch (event.type) {
  82                 case SDL_KEYDOWN:
  83                         interface.HandlePress(event.key);
  84                         break;
  85                 case SDL_KEYUP:
  86                         interface.HandleRelease(event.key);
  87                         break;
  88                 case SDL_MOUSEBUTTONDOWN:
  89                         interface.HandlePress(event.button);
  90                         break;
  91                 case SDL_MOUSEBUTTONUP:
  92                         interface.HandleRelease(event.button);
  93                         break;
  94                 case SDL_MOUSEMOTION:
  95                         interface.Handle(event.motion);
  96                         break;
  97                 case SDL_MOUSEWHEEL:
  98                         interface.Handle(event.wheel);
  99                         break;
 100                 case SDL_QUIT:
 101                         Exit();
 102                         break;
 103                 default:
 104                         break;
 105         }
 106 }
 107
 108 void InteractiveState::Update(int dt) {
 109         input.Update(dt);
 110         if (input.BlockFocus()) {
 111                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 112         } else if (input.EntityFocus()) {
 113                 hud.FocusEntity(*input.EntityFocus().entity);
 114         } else {
 115                 hud.FocusNone();
 116         }
 117         hud.Display(res.block_types[player.GetInventorySlot() + 1]);
 118         loop_timer.Update(dt);
 119         master.Update(dt);
 120         chunk_receiver.Update(dt);
 121
 122         hud.Update(dt);
 123         int world_dt = 0;
 124         while (loop_timer.HitOnce()) {
 125                 world.Update(loop_timer.Interval());
 126                 world_dt += loop_timer.Interval();
 127                 loop_timer.PopIteration();
 128         }
 129         chunk_renderer.Update(dt);
 130
 131         if (world_dt > 0) {
 132                 input.PushPlayerUpdate(world_dt);
 133         }
 134
 135         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 136         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 137         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 138         master.GetEnv().audio.Position(player.GetEntity().Position());
 139         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 140         master.GetEnv().audio.Orientation(dir, up);
 141 }
 142
 143 void InteractiveState::Render(Viewport &viewport) {
 144         viewport.WorldPosition(player.GetEntity().Transform(player.GetEntity().ChunkCoords()));
 145         if (master.GetConfig().video.world) {
 146                 chunk_renderer.Render(viewport);
 147                 world.Render(viewport);
 148                 sky.Render(viewport);
 149         }
 150         hud.Render(viewport);
 151 }
 152
 153 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 154         uint32_t entity_id;
 155         pack.ReadEntityID(entity_id);
 156         Entity &entity = world.ForceAddEntity(entity_id);
 157         UpdateEntity(entity_id, pack.Seq());
 158         pack.ReadEntity(entity);
 159         uint32_t skel_id;
 160         pack.ReadSkeletonID(skel_id);
 161         if (skel_id > 0 && skel_id <= res.models.size()) {
 162                 Model &skel = res.models.Get(skel_id);
 163                 skel.Instantiate(entity.GetModel());
 164         }
 165         cout << "spawned entity #" << entity_id << "  (" << entity.Name()
 166                 << ") at " << entity.AbsolutePosition() << endl;
 167 }
 168
 169 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 170         uint32_t entity_id;
 171         pack.ReadEntityID(entity_id);
 172         ClearEntity(entity_id);
 173         for (Entity &entity : world.Entities()) {
 174                 if (entity.ID() == entity_id) {
 175                         entity.Kill();
 176                         cout << "despawned entity #" << entity_id << " (" << entity.Name() << ") at " << entity.AbsolutePosition() << endl;
 177                         return;
 178                 }
 179         }
 180 }
 181
 182 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 183         auto world_iter = world.Entities().begin();
 184         auto world_end = world.Entities().end();
 185
 186         uint32_t count = 0;
 187         pack.ReadEntityCount(count);
 188
 189         for (uint32_t i = 0; i < count; ++i) {
 190                 uint32_t entity_id = 0;
 191                 pack.ReadEntityID(entity_id, i);
 192
 193                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 194                         ++world_iter;
 195                 }
 196                 if (world_iter == world_end) {
 197                         // nothing can be done from here
 198                         return;
 199                 }
 200                 if (world_iter->ID() == entity_id) {
 201                         if (UpdateEntity(entity_id, pack.Seq())) {
 202                                 pack.ReadEntityState(world_iter->GetState(), i);
 203                         }
 204                 }
 205         }
 206 }
 207
 208 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 209         auto entry = update_status.find(entity_id);
 210         if (entry == update_status.end()) {
 211                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 212                 return true;
 213         }
 214
 215         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 216         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 217         entry->second.last_update = loop_timer.Elapsed();
 218
 219         if (pack_diff > 0 || time_diff > 1500) {
 220                 entry->second.last_packet = seq;
 221                 return true;
 222         } else {
 223                 return false;
 224         }
 225 }
 226
 227 void InteractiveState::ClearEntity(uint32_t entity_id) {
 228         update_status.erase(entity_id);
 229 }
 230
 231 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 232         uint16_t pack_seq;
 233         EntityState corrected_state;
 234         pack.ReadPacketSeq(pack_seq);
 235         pack.ReadPlayerState(corrected_state);
 236         input.MergePlayerCorrection(pack_seq, corrected_state);
 237 }
 238
 239 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 240         glm::ivec3 pos;
 241         pack.ReadChunkCoords(pos);
 242         Chunk *chunk = player.GetChunks().Get(pos);
 243         if (!chunk) {
 244                 // this change doesn't concern us
 245                 return;
 246         }
 247         uint32_t count = 0;
 248         pack.ReadBlockCount(count);
 249         for (uint32_t i = 0; i < count; ++i) {
 250                 uint16_t index;
 251                 Block block;
 252                 pack.ReadIndex(index, i);
 253                 pack.ReadBlock(block, i);
 254                 if (index < Chunk::size && block.type < res.block_types.size()) {
 255                         manip.SetBlock(*chunk, index, block);
 256                 }
 257         }
 258 }
 259
 260 void InteractiveState::SetAudio(bool b) {
 261         master.GetConfig().audio.enabled = b;
 262         if (b) {
 263                 hud.PostMessage("Audio enabled");
 264         } else {
 265                 hud.PostMessage("Audio disabled");
 266         }
 267 }
 268
 269 void InteractiveState::SetVideo(bool b) {
 270         master.GetConfig().video.world = b;
 271         if (b) {
 272                 hud.PostMessage("World rendering enabled");
 273         } else {
 274                 hud.PostMessage("World rendering disabled");
 275         }
 276 }
 277
 278 void InteractiveState::SetHUD(bool b) {
 279         master.GetConfig().video.hud = b;
 280         if (b) {
 281                 hud.PostMessage("HUD rendering enabled");
 282         } else {
 283                 hud.PostMessage("HUD rendering disabled");
 284         }
 285 }
 286
 287 void InteractiveState::SetDebug(bool b) {
 288         master.GetConfig().video.debug = b;
 289         if (b) {
 290                 hud.PostMessage("Debug rendering enabled");
 291         } else {
 292                 hud.PostMessage("Debug rendering disabled");
 293         }
 294 }
 295
 296 void InteractiveState::Exit() {
 297         save.Write(player);
 298         master.Quit();
 299 }
 300
 301
 302 MasterState::MasterState(
 303         Environment &env,
 304         Config &config,
 305         const World::Config &wc)
 306 : env(env)
 307 , config(config)
 308 , world_conf(wc)
 309 , state()
 310 , client(config.net)
 311 , init_state(*this)
 312 , login_packet(-1) {
 313         client.GetConnection().SetHandler(this);
 314 }
 315
 316 void MasterState::Quit() {
 317         if (!client.GetConnection().Closed()) {
 318                 client.SendPart();
 319         }
 320         env.state.PopUntil(this);
 321 }
 322
 323
 324 void MasterState::OnEnter() {
 325         login_packet = client.SendLogin(config.player.name);
 326         env.state.Push(&init_state);
 327 }
 328
 329
 330 void MasterState::Handle(const SDL_Event &event) {
 331
 332 }
 333
 334
 335 void MasterState::Update(int dt) {
 336         client.Handle();
 337         client.Update(dt);
 338 }
 339
 340
 341 void MasterState::Render(Viewport &) {
 342
 343 }
 344
 345
 346 void MasterState::OnPacketLost(uint16_t id) {
 347         if (id == login_packet) {
 348                 login_packet = client.SendLogin(config.player.name);
 349         }
 350 }
 351
 352 void MasterState::OnTimeout() {
 353         if (client.GetConnection().Closed()) {
 354                 Quit();
 355                 env.ShowMessage("connection timed out");
 356         }
 357 }
 358
 359 void MasterState::On(const Packet::Join &pack) {
 360         pack.ReadWorldName(world_conf.name);
 361
 362         if (state) {
 363                 // changing worlds
 364                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 365         } else {
 366                 // joining game
 367                 cout << "joined game \"" << world_conf.name << '"' << endl;
 368                 // server received our login
 369                 login_packet = -1;
 370         }
 371
 372         uint32_t player_id;
 373         pack.ReadPlayerID(player_id);
 374         state.reset(new InteractiveState(*this, player_id));
 375
 376         pack.ReadPlayerState(state->GetPlayer().GetEntity().GetState());
 377
 378         env.state.PopAfter(this);
 379         env.state.Push(state.get());
 380 }
 381
 382 void MasterState::On(const Packet::Part &pack) {
 383         Quit();
 384         if (state) {
 385                 // kicked
 386                 env.ShowMessage("kicked by server");
 387         } else {
 388                 // join refused
 389                 env.ShowMessage("login refused by server");
 390         }
 391 }
 392
 393 void MasterState::On(const Packet::SpawnEntity &pack) {
 394         if (!state) {
 395                 cout << "got entity spawn before world was created" << endl;
 396                 return;
 397         }
 398         state->Handle(pack);
 399 }
 400
 401 void MasterState::On(const Packet::DespawnEntity &pack) {
 402         if (!state) {
 403                 cout << "got entity despawn before world was created" << endl;
 404                 return;
 405         }
 406         state->Handle(pack);
 407 }
 408
 409 void MasterState::On(const Packet::EntityUpdate &pack) {
 410         if (!state) {
 411                 cout << "got entity update before world was created" << endl;
 412                 return;
 413         }
 414         state->Handle(pack);
 415 }
 416
 417 void MasterState::On(const Packet::PlayerCorrection &pack) {
 418         if (!state) {
 419                 cout << "got player correction without a player :S" << endl;
 420                 return;
 421         }
 422         state->Handle(pack);
 423 }
 424
 425 void MasterState::On(const Packet::ChunkBegin &pack) {
 426         if (!state) {
 427                 cout << "got chunk data, but the world has not been created yet" << endl;
 428                 cout << "great, this will totally screw up everything :(" << endl;
 429                 return;
 430         }
 431         state->GetChunkReceiver().Handle(pack);
 432 }
 433
 434 void MasterState::On(const Packet::ChunkData &pack) {
 435         if (!state) {
 436                 cout << "got chunk data, but the world has not been created yet" << endl;
 437                 cout << "great, this will totally screw up everything :(" << endl;
 438                 return;
 439         }
 440         state->GetChunkReceiver().Handle(pack);
 441 }
 442
 443 void MasterState::On(const Packet::BlockUpdate &pack) {
 444         if (!state) {
 445                 cout << "received block update, but the world has not been created yet" << endl;
 446                 return;
 447         }
 448         state->Handle(pack);
 449 }
 450
 451 }
 452 }