src/ui/ui.cpp

   1 #include "HUD.hpp"
   2 #include "Interface.hpp"
   3 #include "Keymap.hpp"
   4
   5 #include "../app/Assets.hpp"
   6 #include "../app/Environment.hpp"
   7 #include "../app/FrameCounter.hpp"
   8 #include "../app/init.hpp"
   9 #include "../audio/Audio.hpp"
  10 #include "../graphics/Font.hpp"
  11 #include "../graphics/Viewport.hpp"
  12 #include "../io/TokenStreamReader.hpp"
  13 #include "../model/shapes.hpp"
  14 #include "../world/BlockLookup.hpp"
  15 #include "../world/World.hpp"
  16
  17 #include <algorithm>
  18 #include <cmath>
  19 #include <iostream>
  20 #include <sstream>
  21 #include <glm/gtc/matrix_transform.hpp>
  22 #include <glm/gtx/io.hpp>
  23
  24
  25 namespace blank {
  26
  27 HUD::HUD(const BlockTypeRegistry &types, const Font &font)
  28 : types(types)
  29 , font(font)
  30 , block()
  31 , block_buf()
  32 , block_transform(1.0f)
  33 , block_label()
  34 , block_visible(false)
  35 , crosshair() {
  36         block_transform = glm::translate(block_transform, glm::vec3(50.0f, 50.0f, 0.0f));
  37         block_transform = glm::scale(block_transform, glm::vec3(50.0f));
  38         block_transform = glm::rotate(block_transform, 3.5f, glm::vec3(1.0f, 0.0f, 0.0f));
  39         block_transform = glm::rotate(block_transform, 0.35f, glm::vec3(0.0f, 1.0f, 0.0f));
  40
  41         OutlineModel::Buffer buf;
  42         buf.vertices = std::vector<glm::vec3>({
  43                 { -10.0f,   0.0f, 0.0f }, { 10.0f,  0.0f, 0.0f },
  44                 {   0.0f, -10.0f, 0.0f }, {  0.0f, 10.0f, 0.0f },
  45         });
  46         buf.indices = std::vector<OutlineModel::Index>({
  47                 0, 1, 2, 3
  48         });
  49         buf.colors.resize(4, { 10.0f, 10.0f, 10.0f });
  50         crosshair.Update(buf);
  51
  52         block_label.Position(
  53                 glm::vec3(50.0f, 85.0f, 0.0f),
  54                 Gravity::NORTH_WEST,
  55                 Gravity::NORTH
  56         );
  57         block_label.Foreground(glm::vec4(1.0f));
  58         block_label.Background(glm::vec4(0.5f));
  59 }
  60
  61
  62 void HUD::DisplayNone() {
  63         block_visible = false;
  64 }
  65
  66 void HUD::Display(const Block &b) {
  67         const BlockType &type = types.Get(b.type);
  68
  69         block_buf.Clear();
  70         type.FillEntityModel(block_buf, b.Transform());
  71         block.Update(block_buf);
  72
  73         block_label.Set(font, type.label);
  74
  75         block_visible = type.visible;
  76 }
  77
  78
  79 void HUD::Render(Viewport &viewport) noexcept {
  80         viewport.ClearDepth();
  81
  82         PlainColor &outline_prog = viewport.HUDOutlineProgram();
  83         viewport.EnableInvertBlending();
  84         viewport.SetCursor(glm::vec3(0.0f), Gravity::CENTER);
  85         outline_prog.SetM(viewport.Cursor());
  86         crosshair.Draw();
  87
  88         if (block_visible) {
  89                 DirectionalLighting &world_prog = viewport.HUDProgram();
  90                 world_prog.SetLightDirection({ 1.0f, 3.0f, 5.0f });
  91                 // disable distance fog
  92                 world_prog.SetFogDensity(0.0f);
  93
  94                 viewport.DisableBlending();
  95                 world_prog.SetM(block_transform);
  96                 block.Draw();
  97                 block_label.Render(viewport);
  98         }
  99 }
 100
 101
 102 Interface::Interface(
 103         const Config &config,
 104         Environment &env,
 105         World &world)
 106 : env(env)
 107 , world(world)
 108 // let's assume this succeeds and hope for the best for now
 109 , ctrl(*world.AddPlayer(config.player_name))
 110 , hud(world.BlockTypes(), env.assets.small_ui_font)
 111 , aim{{ 0, 0, 0 }, { 0, 0, -1 }}
 112 , aim_world()
 113 , aim_entity()
 114 , outline()
 115 , outline_transform(1.0f)
 116 , counter_text()
 117 , position_text()
 118 , orientation_text()
 119 , block_text()
 120 , last_block()
 121 , last_entity(nullptr)
 122 , messages(env.assets.small_ui_font)
 123 , msg_timer(5000)
 124 , config(config)
 125 , place_timer(256)
 126 , remove_timer(256)
 127 , remove(0)
 128 , selection(0)
 129 , place_sound(env.loader.LoadSound("thump"))
 130 , remove_sound(env.loader.LoadSound("plop"))
 131 , fwd(0)
 132 , rev(0)
 133 , debug(false) {
 134         counter_text.Position(glm::vec3(-25.0f, 25.0f, 0.0f), Gravity::NORTH_EAST);
 135         counter_text.Foreground(glm::vec4(1.0f));
 136         counter_text.Background(glm::vec4(0.5f));
 137         position_text.Position(glm::vec3(-25.0f, 25.0f + env.assets.small_ui_font.LineSkip(), 0.0f), Gravity::NORTH_EAST);
 138         position_text.Foreground(glm::vec4(1.0f));
 139         position_text.Background(glm::vec4(0.5f));
 140         orientation_text.Position(glm::vec3(-25.0f, 25.0f + 2 * env.assets.small_ui_font.LineSkip(), 0.0f), Gravity::NORTH_EAST);
 141         orientation_text.Foreground(glm::vec4(1.0f));
 142         orientation_text.Background(glm::vec4(0.5f));
 143         block_text.Position(glm::vec3(-25.0f, 25.0f + 4 * env.assets.small_ui_font.LineSkip(), 0.0f), Gravity::NORTH_EAST);
 144         block_text.Foreground(glm::vec4(1.0f));
 145         block_text.Background(glm::vec4(0.5f));
 146         block_text.Set(env.assets.small_ui_font, "Block: none");
 147         entity_text.Position(glm::vec3(-25.0f, 25.0f + 4 * env.assets.small_ui_font.LineSkip(), 0.0f), Gravity::NORTH_EAST);
 148         entity_text.Foreground(glm::vec4(1.0f));
 149         entity_text.Background(glm::vec4(0.5f));
 150         entity_text.Set(env.assets.small_ui_font, "Entity: none");
 151         messages.Position(glm::vec3(25.0f, -25.0f, 0.0f), Gravity::SOUTH_WEST);
 152         messages.Foreground(glm::vec4(1.0f));
 153         messages.Background(glm::vec4(0.5f));
 154         hud.DisplayNone();
 155 }
 156
 157
 158 void Interface::HandlePress(const SDL_KeyboardEvent &event) {
 159         if (config.keyboard_disabled) return;
 160
 161         switch (env.keymap.Lookup(event)) {
 162                 case Keymap::MOVE_FORWARD:
 163                         rev.z = 1;
 164                         break;
 165                 case Keymap::MOVE_BACKWARD:
 166                         fwd.z = 1;
 167                         break;
 168                 case Keymap::MOVE_LEFT:
 169                         rev.x = 1;
 170                         break;
 171                 case Keymap::MOVE_RIGHT:
 172                         fwd.x = 1;
 173                         break;
 174                 case Keymap::MOVE_UP:
 175                         fwd.y = 1;
 176                         break;
 177                 case Keymap::MOVE_DOWN:
 178                         rev.y = 1;
 179                         break;
 180
 181                 case Keymap::BLOCK_FACE:
 182                         FaceBlock();
 183                         break;
 184                 case Keymap::BLOCK_TURN:
 185                         TurnBlock();
 186                         break;
 187                 case Keymap::BLOCK_NEXT:
 188                         SelectNext();
 189                         break;
 190                 case Keymap::BLOCK_PREV:
 191                         SelectPrevious();
 192                         break;
 193
 194                 case Keymap::BLOCK_PLACE:
 195                         PlaceBlock();
 196                         break;
 197                 case Keymap::BLOCK_PICK:
 198                         PickBlock();
 199                         break;
 200                 case Keymap::BLOCK_REMOVE:
 201                         RemoveBlock();
 202                         break;
 203
 204                 case Keymap::TOGGLE_COLLISION:
 205                         ToggleCollision();
 206                         break;
 207
 208                 case Keymap::TOGGLE_VISUAL:
 209                         ToggleVisual();
 210                         break;
 211                 case Keymap::TOGGLE_DEBUG:
 212                         ToggleDebug();
 213                         break;
 214                 case Keymap::TOGGLE_AUDIO:
 215                         ToggleAudio();
 216                         break;
 217
 218                 case Keymap::EXIT:
 219                         env.state.Pop();
 220                         break;
 221
 222                 default:
 223                         break;
 224         }
 225 }
 226
 227 void Interface::HandleRelease(const SDL_KeyboardEvent &event) {
 228         if (config.keyboard_disabled) return;
 229
 230         switch (env.keymap.Lookup(event)) {
 231                 case Keymap::MOVE_FORWARD:
 232                         rev.z = 0;
 233                         break;
 234                 case Keymap::MOVE_BACKWARD:
 235                         fwd.z = 0;
 236                         break;
 237                 case Keymap::MOVE_LEFT:
 238                         rev.x = 0;
 239                         break;
 240                 case Keymap::MOVE_RIGHT:
 241                         fwd.x = 0;
 242                         break;
 243                 case Keymap::MOVE_UP:
 244                         fwd.y = 0;
 245                         break;
 246                 case Keymap::MOVE_DOWN:
 247                         rev.y = 0;
 248                         break;
 249
 250                 default:
 251                         break;
 252         }
 253 }
 254
 255 void Interface::FaceBlock() {
 256         selection.SetFace(Block::Face((selection.GetFace() + 1) % Block::FACE_COUNT));
 257         hud.Display(selection);
 258 }
 259
 260 void Interface::TurnBlock() {
 261         selection.SetTurn(Block::Turn((selection.GetTurn() + 1) % Block::TURN_COUNT));
 262         hud.Display(selection);
 263 }
 264
 265 void Interface::ToggleCollision() {
 266         ctrl.Controlled().WorldCollidable(!ctrl.Controlled().WorldCollidable());
 267         if (ctrl.Controlled().WorldCollidable()) {
 268                 PostMessage("collision on");
 269         } else {
 270                 PostMessage("collision off");
 271         }
 272 }
 273
 274 void Interface::ToggleAudio() {
 275         config.audio_disabled = !config.audio_disabled;
 276         if (config.audio_disabled) {
 277                 PostMessage("audio off");
 278         } else {
 279                 PostMessage("audio on");
 280         }
 281 }
 282
 283 void Interface::ToggleVisual() {
 284         config.visual_disabled = !config.visual_disabled;
 285         if (config.visual_disabled) {
 286                 PostMessage("visual off");
 287         } else {
 288                 PostMessage("visual on");
 289         }
 290 }
 291
 292 void Interface::ToggleDebug() {
 293         debug = !debug;
 294         if (debug) {
 295                 UpdateCounter();
 296                 UpdatePosition();
 297                 UpdateOrientation();
 298                 UpdateBlockInfo();
 299                 UpdateEntityInfo();
 300         }
 301 }
 302
 303 void Interface::UpdateCounter() {
 304         std::stringstream s;
 305         s << std::setprecision(3) <<
 306                 "avg: " << env.counter.Average().running << "ms, "
 307                 "peak: " << env.counter.Peak().running << "ms";
 308         std::string text = s.str();
 309         counter_text.Set(env.assets.small_ui_font, text);
 310 }
 311
 312 void Interface::UpdatePosition() {
 313         std::stringstream s;
 314         s << std::setprecision(3) << "pos: " << ctrl.Controlled().AbsolutePosition();
 315         position_text.Set(env.assets.small_ui_font, s.str());
 316 }
 317
 318 void Interface::UpdateOrientation() {
 319         std::stringstream s;
 320         s << std::setprecision(3) << "pitch: " << rad2deg(ctrl.Pitch())
 321                 << ", yaw: " << rad2deg(ctrl.Yaw());
 322         orientation_text.Set(env.assets.small_ui_font, s.str());
 323 }
 324
 325 void Interface::UpdateBlockInfo() {
 326         if (aim_world) {
 327                 const Block &block = aim_world.GetBlock();
 328                 if (last_block != block) {
 329                         std::stringstream s;
 330                         s << "Block: "
 331                                 << aim_world.GetType().label
 332                                 << ", face: " << block.GetFace()
 333                                 << ", turn: " << block.GetTurn();
 334                         block_text.Set(env.assets.small_ui_font, s.str());
 335                         last_block = block;
 336                 }
 337         } else {
 338                 if (last_block != Block()) {
 339                         std::stringstream s;
 340                         s << "Block: none";
 341                         block_text.Set(env.assets.small_ui_font, s.str());
 342                         last_block = Block();
 343                 }
 344         }
 345 }
 346
 347 void Interface::UpdateEntityInfo() {
 348         if (aim_entity) {
 349                 if (last_entity != aim_entity.entity) {
 350                         std::stringstream s;
 351                         s << "Entity: " << aim_entity.entity->Name();
 352                         entity_text.Set(env.assets.small_ui_font, s.str());
 353                         last_entity = aim_entity.entity;
 354                 }
 355         }
 356 }
 357
 358
 359 void Interface::Handle(const SDL_MouseMotionEvent &event) {
 360         if (config.mouse_disabled) return;
 361         ctrl.RotateYaw(event.xrel * config.yaw_sensitivity);
 362         ctrl.RotatePitch(event.yrel * config.pitch_sensitivity);
 363 }
 364
 365 void Interface::HandlePress(const SDL_MouseButtonEvent &event) {
 366         if (config.mouse_disabled) return;
 367
 368         if (event.button == SDL_BUTTON_LEFT) {
 369                 RemoveBlock();
 370                 remove_timer.Start();
 371         } else if (event.button == SDL_BUTTON_MIDDLE) {
 372                 PickBlock();
 373         } else if (event.button == SDL_BUTTON_RIGHT) {
 374                 PlaceBlock();
 375                 place_timer.Start();
 376         }
 377 }
 378
 379 void Interface::HandleRelease(const SDL_MouseButtonEvent &event) {
 380         if (config.mouse_disabled) return;
 381
 382         if (event.button == SDL_BUTTON_LEFT) {
 383                 remove_timer.Stop();
 384         } else if (event.button == SDL_BUTTON_RIGHT) {
 385                 place_timer.Stop();
 386         }
 387 }
 388
 389 void Interface::PickBlock() {
 390         if (!aim_world) return;
 391         selection = aim_world.GetBlock();
 392         hud.Display(selection);
 393 }
 394
 395 void Interface::PlaceBlock() {
 396         if (!aim_world) return;
 397
 398         glm::vec3 next_pos = aim_world.BlockCoords() + aim_world.normal;
 399         BlockLookup next_block(&aim_world.GetChunk(), next_pos);
 400         if (next_block) {
 401         }
 402         next_block.SetBlock(selection);
 403
 404         if (config.audio_disabled) return;
 405         const Entity &player = ctrl.Controlled();
 406         env.audio.Play(
 407                 place_sound,
 408                 aim_world.GetChunk().ToSceneCoords(player.ChunkCoords(), next_pos)
 409         );
 410 }
 411
 412 void Interface::RemoveBlock() noexcept {
 413         if (!aim_world) return;
 414         aim_world.SetBlock(remove);
 415
 416         if (config.audio_disabled) return;
 417         const Entity &player = ctrl.Controlled();
 418         env.audio.Play(
 419                 remove_sound,
 420                 aim_world.GetChunk().ToSceneCoords(player.ChunkCoords(), aim_world.BlockCoords())
 421         );
 422 }
 423
 424
 425 void Interface::Handle(const SDL_MouseWheelEvent &event) {
 426         if (config.mouse_disabled) return;
 427
 428         if (event.y < 0) {
 429                 SelectNext();
 430         } else if (event.y > 0) {
 431                 SelectPrevious();
 432         }
 433 }
 434
 435 void Interface::SelectNext() {
 436         ++selection.type;
 437         if (size_t(selection.type) >= world.BlockTypes().Size()) {
 438                 selection.type = 1;
 439         }
 440         hud.Display(selection);
 441 }
 442
 443 void Interface::SelectPrevious() {
 444         --selection.type;
 445         if (selection.type <= 0) {
 446                 selection.type = world.BlockTypes().Size() - 1;
 447         }
 448         hud.Display(selection);
 449 }
 450
 451
 452 void Interface::PostMessage(const char *msg) {
 453         messages.PushLine(msg);
 454         msg_timer.Reset();
 455         msg_timer.Start();
 456         std::cout << msg << std::endl;
 457 }
 458
 459
 460 void Interface::Update(int dt) {
 461         ctrl.Velocity(glm::vec3(fwd - rev) * config.move_velocity);
 462         ctrl.Update(dt);
 463
 464         msg_timer.Update(dt);
 465         place_timer.Update(dt);
 466         remove_timer.Update(dt);
 467
 468         aim = ctrl.Aim();
 469         CheckAim();
 470
 471         if (msg_timer.HitOnce()) {
 472                 msg_timer.Stop();
 473         }
 474
 475         if (remove_timer.Hit()) {
 476                 RemoveBlock();
 477                 CheckAim();
 478         }
 479
 480         if (place_timer.Hit()) {
 481                 PlaceBlock();
 482                 CheckAim();
 483         }
 484
 485         if (debug) {
 486                 if (env.counter.Changed()) {
 487                         UpdateCounter();
 488                 }
 489                 UpdatePosition();
 490                 UpdateOrientation();
 491         }
 492 }
 493
 494 namespace {
 495
 496 OutlineModel::Buffer outl_buf;
 497
 498 }
 499
 500 void Interface::CheckAim() {
 501         if (!world.Intersection(aim, glm::mat4(1.0f), ctrl.Controlled().ChunkCoords(), aim_world)) {
 502                 aim_world = WorldCollision();
 503         }
 504         if (!world.Intersection(aim, glm::mat4(1.0f), ctrl.Controlled(), aim_entity)) {
 505                 aim_entity = EntityCollision();
 506         }
 507         if (aim_world && aim_entity) {
 508                 // got both, pick the closest one
 509                 if (aim_world.depth < aim_entity.depth) {
 510                         UpdateOutline();
 511                         aim_entity = EntityCollision();
 512                 } else {
 513                         aim_world = WorldCollision();
 514                 }
 515         } else if (aim_world) {
 516                 UpdateOutline();
 517         }
 518         if (debug) {
 519                 UpdateBlockInfo();
 520                 UpdateEntityInfo();
 521         }
 522 }
 523
 524 void Interface::UpdateOutline() {
 525         outl_buf.Clear();
 526         aim_world.GetType().FillOutlineModel(outl_buf);
 527         outline.Update(outl_buf);
 528         outline_transform = aim_world.GetChunk().Transform(Player().ChunkCoords());
 529         outline_transform *= aim_world.BlockTransform();
 530         outline_transform *= glm::scale(glm::vec3(1.005f));
 531 }
 532
 533
 534 void Interface::Render(Viewport &viewport) noexcept {
 535         if (config.visual_disabled) return;
 536
 537         if (aim_world) {
 538                 PlainColor &outline_prog = viewport.WorldOutlineProgram();
 539                 outline_prog.SetM(outline_transform);
 540                 outline.Draw();
 541         }
 542
 543         if (debug) {
 544                 counter_text.Render(viewport);
 545                 position_text.Render(viewport);
 546                 orientation_text.Render(viewport);
 547                 if (aim_world) {
 548                         block_text.Render(viewport);
 549                 } else if (aim_entity) {
 550                         entity_text.Render(viewport);
 551                 }
 552         }
 553
 554         if (msg_timer.Running()) {
 555                 messages.Render(viewport);
 556         }
 557
 558         hud.Render(viewport);
 559 }
 560
 561
 562 Keymap::Keymap()
 563 : codemap{ NONE } {
 564
 565 }
 566
 567 void Keymap::Map(SDL_Scancode scancode, Action action) {
 568         if (scancode > MAX_SCANCODE) {
 569                 throw std::runtime_error("refusing to map scancode: too damn high");
 570         }
 571         codemap[scancode] = action;
 572 }
 573
 574 Keymap::Action Keymap::Lookup(SDL_Scancode scancode) {
 575         if (scancode < NUM_SCANCODES) {
 576                 return codemap[scancode];
 577         } else {
 578                 return NONE;
 579         }
 580 }
 581
 582
 583 void Keymap::LoadDefault() {
 584         Map(SDL_SCANCODE_UP, MOVE_FORWARD);
 585         Map(SDL_SCANCODE_W, MOVE_FORWARD);
 586         Map(SDL_SCANCODE_DOWN, MOVE_BACKWARD);
 587         Map(SDL_SCANCODE_S, MOVE_BACKWARD);
 588         Map(SDL_SCANCODE_LEFT, MOVE_LEFT);
 589         Map(SDL_SCANCODE_A, MOVE_LEFT);
 590         Map(SDL_SCANCODE_RIGHT, MOVE_RIGHT);
 591         Map(SDL_SCANCODE_D, MOVE_RIGHT);
 592         Map(SDL_SCANCODE_SPACE, MOVE_UP);
 593         Map(SDL_SCANCODE_RSHIFT, MOVE_UP);
 594         Map(SDL_SCANCODE_LSHIFT, MOVE_DOWN);
 595         Map(SDL_SCANCODE_LCTRL, MOVE_DOWN);
 596         Map(SDL_SCANCODE_RCTRL, MOVE_DOWN);
 597
 598         Map(SDL_SCANCODE_Q, BLOCK_FACE);
 599         Map(SDL_SCANCODE_E, BLOCK_TURN);
 600         Map(SDL_SCANCODE_TAB, BLOCK_NEXT);
 601         Map(SDL_SCANCODE_RIGHTBRACKET, BLOCK_NEXT);
 602         Map(SDL_SCANCODE_LEFTBRACKET, BLOCK_PREV);
 603
 604         Map(SDL_SCANCODE_INSERT, BLOCK_PLACE);
 605         Map(SDL_SCANCODE_RETURN, BLOCK_PLACE);
 606         Map(SDL_SCANCODE_MENU, BLOCK_PICK);
 607         Map(SDL_SCANCODE_DELETE, BLOCK_REMOVE);
 608         Map(SDL_SCANCODE_BACKSPACE, BLOCK_REMOVE);
 609
 610         Map(SDL_SCANCODE_N, TOGGLE_COLLISION);
 611         Map(SDL_SCANCODE_F1, TOGGLE_VISUAL);
 612         Map(SDL_SCANCODE_F3, TOGGLE_DEBUG);
 613         Map(SDL_SCANCODE_F4, TOGGLE_AUDIO);
 614
 615         Map(SDL_SCANCODE_ESCAPE, EXIT);
 616 }
 617
 618
 619 void Keymap::Load(std::istream &is) {
 620         TokenStreamReader in(is);
 621         std::string key_name;
 622         std::string action_name;
 623         SDL_Scancode key;
 624         Action action;
 625         while (in.HasMore()) {
 626                 if (in.Peek().type == Token::STRING) {
 627                         in.ReadString(key_name);
 628                         key = SDL_GetScancodeFromName(key_name.c_str());
 629                 } else {
 630                         key = SDL_Scancode(in.GetInt());
 631                 }
 632                 in.Skip(Token::EQUALS);
 633                 in.ReadIdentifier(action_name);
 634                 action = StringToAction(action_name);
 635                 if (in.HasMore() && in.Peek().type == Token::SEMICOLON) {
 636                         in.Skip(Token::SEMICOLON);
 637                 }
 638                 Map(key, action);
 639         }
 640 }
 641
 642 void Keymap::Save(std::ostream &out) {
 643         for (unsigned int i = 0; i < NUM_SCANCODES; ++i) {
 644                 if (codemap[i] == NONE) continue;
 645
 646                 const char *str = SDL_GetScancodeName(SDL_Scancode(i));
 647                 if (str && *str) {
 648                         out << '"';
 649                         while (*str) {
 650                                 if (*str == '"') {
 651                                         out << "\\\"";
 652                                 } else {
 653                                         out << *str;
 654                                 }
 655                                 ++str;
 656                         }
 657                         out << '"';
 658                 } else {
 659                         out << i;
 660                 }
 661
 662                 out << " = " << ActionToString(codemap[i]) << std::endl;;
 663         }
 664 }
 665
 666
 667 const char *Keymap::ActionToString(Action action) {
 668         switch (action) {
 669                 default:
 670                 case NONE:
 671                         return "none";
 672                 case MOVE_FORWARD:
 673                         return "move_forward";
 674                 case MOVE_BACKWARD:
 675                         return "move_backward";
 676                 case MOVE_LEFT:
 677                         return "move_left";
 678                 case MOVE_RIGHT:
 679                         return "move_right";
 680                 case MOVE_UP:
 681                         return "move_up";
 682                 case MOVE_DOWN:
 683                         return "move_down";
 684                 case BLOCK_FACE:
 685                         return "block_face";
 686                 case BLOCK_TURN:
 687                         return "block_turn";
 688                 case BLOCK_NEXT:
 689                         return "block_next";
 690                 case BLOCK_PREV:
 691                         return "block_prev";
 692                 case BLOCK_PLACE:
 693                         return "block_place";
 694                 case BLOCK_PICK:
 695                         return "block_pick";
 696                 case BLOCK_REMOVE:
 697                         return "block_remove";
 698                 case TOGGLE_COLLISION:
 699                         return "toggle_collision";
 700                 case TOGGLE_AUDIO:
 701                         return "toggle_audio";
 702                 case TOGGLE_VISUAL:
 703                         return "toggle_visual";
 704                 case TOGGLE_DEBUG:
 705                         return "toggle_debug";
 706                 case EXIT:
 707                         return "exit";
 708         }
 709 }
 710
 711 Keymap::Action Keymap::StringToAction(const std::string &str) {
 712         if (str == "move_forward") {
 713                 return MOVE_FORWARD;
 714         } else if (str == "move_backward") {
 715                 return MOVE_BACKWARD;
 716         } else if (str == "move_left") {
 717                 return MOVE_LEFT;
 718         } else if (str == "move_right") {
 719                 return MOVE_RIGHT;
 720         } else if (str == "move_up") {
 721                 return MOVE_UP;
 722         } else if (str == "move_down") {
 723                 return MOVE_DOWN;
 724         } else if (str == "block_face") {
 725                 return BLOCK_FACE;
 726         } else if (str == "block_turn") {
 727                 return BLOCK_TURN;
 728         } else if (str == "block_next") {
 729                 return BLOCK_NEXT;
 730         } else if (str == "block_prev") {
 731                 return BLOCK_PREV;
 732         } else if (str == "block_place") {
 733                 return BLOCK_PLACE;
 734         } else if (str == "block_pick") {
 735                 return BLOCK_PICK;
 736         } else if (str == "block_remove") {
 737                 return BLOCK_REMOVE;
 738         } else if (str == "toggle_collision") {
 739                 return TOGGLE_COLLISION;
 740         } else if (str == "toggle_audio") {
 741                 return TOGGLE_AUDIO;
 742         } else if (str == "toggle_visual") {
 743                 return TOGGLE_VISUAL;
 744         } else if (str == "toggle_debug") {
 745                 return TOGGLE_DEBUG;
 746         } else if (str == "exit") {
 747                 return EXIT;
 748         } else {
 749                 return NONE;
 750         }
 751 }
 752
 753 }