src/ui/ui.cpp

   1 #include "HUD.hpp"
   2 #include "Interface.hpp"
   3
   4 #include "../app/Assets.hpp"
   5 #include "../app/FrameCounter.hpp"
   6 #include "../app/init.hpp"
   7 #include "../audio/Audio.hpp"
   8 #include "../graphics/Font.hpp"
   9 #include "../graphics/Viewport.hpp"
  10 #include "../model/shapes.hpp"
  11 #include "../world/World.hpp"
  12
  13 #include <algorithm>
  14 #include <cmath>
  15 #include <iostream>
  16 #include <sstream>
  17 #include <glm/gtc/matrix_transform.hpp>
  18 #include <glm/gtx/io.hpp>
  19
  20
  21 namespace blank {
  22
  23 HUD::HUD(const BlockTypeRegistry &types, const Font &font)
  24 : types(types)
  25 , font(font)
  26 , block()
  27 , block_buf()
  28 , block_transform(1.0f)
  29 , block_label()
  30 , block_visible(false)
  31 , crosshair() {
  32         block_transform = glm::translate(block_transform, glm::vec3(50.0f, 50.0f, 0.0f));
  33         block_transform = glm::scale(block_transform, glm::vec3(50.0f));
  34         block_transform = glm::rotate(block_transform, 3.5f, glm::vec3(1.0f, 0.0f, 0.0f));
  35         block_transform = glm::rotate(block_transform, 0.35f, glm::vec3(0.0f, 1.0f, 0.0f));
  36
  37         OutlineModel::Buffer buf;
  38         buf.vertices = std::vector<glm::vec3>({
  39                 { -10.0f,   0.0f, 0.0f }, { 10.0f,  0.0f, 0.0f },
  40                 {   0.0f, -10.0f, 0.0f }, {  0.0f, 10.0f, 0.0f },
  41         });
  42         buf.indices = std::vector<OutlineModel::Index>({
  43                 0, 1, 2, 3
  44         });
  45         buf.colors.resize(4, { 10.0f, 10.0f, 10.0f });
  46         crosshair.Update(buf);
  47
  48         block_label.Position(
  49                 glm::vec3(50.0f, 85.0f, 0.0f),
  50                 Gravity::NORTH_WEST,
  51                 Gravity::NORTH
  52         );
  53         block_label.Foreground(glm::vec4(1.0f));
  54         block_label.Background(glm::vec4(0.5f));
  55 }
  56
  57
  58 void HUD::Display(const Block &b) {
  59         const BlockType &type = types.Get(b.type);
  60
  61         block_buf.Clear();
  62         type.FillEntityModel(block_buf, b.Transform());
  63         block.Update(block_buf);
  64
  65         block_label.Set(font, type.label);
  66
  67         block_visible = type.visible;
  68 }
  69
  70
  71 void HUD::Render(Viewport &viewport) noexcept {
  72         viewport.ClearDepth();
  73
  74         DirectionalLighting &world_prog = viewport.HUDProgram();
  75         world_prog.SetLightDirection({ 1.0f, 3.0f, 5.0f });
  76         // disable distance fog
  77         world_prog.SetFogDensity(0.0f);
  78
  79         viewport.EnableInvertBlending();
  80         viewport.SetCursor(glm::vec3(0.0f), Gravity::CENTER);
  81         world_prog.SetM(viewport.Cursor());
  82         crosshair.Draw();
  83
  84         if (block_visible) {
  85                 viewport.DisableBlending();
  86                 world_prog.SetM(block_transform);
  87                 block.Draw();
  88                 block_label.Render(viewport);
  89         }
  90 }
  91
  92
  93 Interface::Interface(
  94         const Config &config,
  95         const Assets &assets,
  96         Audio &audio,
  97         const FrameCounter &counter,
  98         World &world)
  99 : audio(audio)
 100 , counter(counter)
 101 , world(world)
 102 , ctrl(world.Player())
 103 , font(assets.LoadFont("DejaVuSans", 16))
 104 , hud(world.BlockTypes(), font)
 105 , aim{{ 0, 0, 0 }, { 0, 0, -1 }}
 106 , aim_chunk(nullptr)
 107 , aim_block(0)
 108 , aim_normal()
 109 , outline()
 110 , outline_transform(1.0f)
 111 , counter_text()
 112 , messages(font)
 113 , msg_timer(5000)
 114 , config(config)
 115 , place_timer(256)
 116 , remove_timer(256)
 117 , remove(0)
 118 , selection(1)
 119 , place_sound(assets.LoadSound("thump"))
 120 , remove_sound(assets.LoadSound("plop"))
 121 , fwd(0)
 122 , rev(0) {
 123         counter_text.Hide();
 124         counter_text.Position(glm::vec3(-25.0f, 25.0f, 0.0f), Gravity::NORTH_EAST);
 125         counter_text.Foreground(glm::vec4(1.0f));
 126         counter_text.Background(glm::vec4(0.5f));
 127         messages.Position(glm::vec3(25.0f, -25.0f, 0.0f), Gravity::SOUTH_WEST);
 128         messages.Foreground(glm::vec4(1.0f));
 129         messages.Background(glm::vec4(0.5f));
 130         hud.Display(selection);
 131 }
 132
 133
 134 void Interface::HandlePress(const SDL_KeyboardEvent &event) {
 135         if (config.keyboard_disabled) return;
 136
 137         switch (event.keysym.sym) {
 138                 case SDLK_w:
 139                         rev.z = 1;
 140                         break;
 141                 case SDLK_s:
 142                         fwd.z = 1;
 143                         break;
 144                 case SDLK_a:
 145                         rev.x = 1;
 146                         break;
 147                 case SDLK_d:
 148                         fwd.x = 1;
 149                         break;
 150                 case SDLK_SPACE:
 151                         fwd.y = 1;
 152                         break;
 153                 case SDLK_LSHIFT:
 154                         rev.y = 1;
 155                         break;
 156
 157                 case SDLK_q:
 158                         FaceBlock();
 159                         break;
 160                 case SDLK_e:
 161                         TurnBlock();
 162                         break;
 163
 164                 case SDLK_n:
 165                         ToggleCollision();
 166                         break;
 167
 168                 case SDLK_b:
 169                         PrintBlockInfo();
 170                         break;
 171                 case SDLK_c:
 172                         PrintChunkInfo();
 173                         break;
 174                 case SDLK_l:
 175                         PrintLightInfo();
 176                         break;
 177                 case SDLK_p:
 178                         PrintSelectionInfo();
 179                         break;
 180
 181                 case SDLK_F1:
 182                         ToggleVisual();
 183                         break;
 184                 case SDLK_F3:
 185                         ToggleCounter();
 186                         break;
 187                 case SDLK_F4:
 188                         ToggleAudio();
 189                         break;
 190         }
 191 }
 192
 193 void Interface::HandleRelease(const SDL_KeyboardEvent &event) {
 194         if (config.keyboard_disabled) return;
 195
 196         switch (event.keysym.sym) {
 197                 case SDLK_w:
 198                         rev.z = 0;
 199                         break;
 200                 case SDLK_s:
 201                         fwd.z = 0;
 202                         break;
 203                 case SDLK_a:
 204                         rev.x = 0;
 205                         break;
 206                 case SDLK_d:
 207                         fwd.x = 0;
 208                         break;
 209                 case SDLK_SPACE:
 210                         fwd.y = 0;
 211                         break;
 212                 case SDLK_LSHIFT:
 213                         rev.y = 0;
 214                         break;
 215         }
 216 }
 217
 218 void Interface::FaceBlock() {
 219         selection.SetFace(Block::Face((selection.GetFace() + 1) % Block::FACE_COUNT));
 220         hud.Display(selection);
 221 }
 222
 223 void Interface::TurnBlock() {
 224         selection.SetTurn(Block::Turn((selection.GetTurn() + 1) % Block::TURN_COUNT));
 225         hud.Display(selection);
 226 }
 227
 228 void Interface::ToggleCollision() {
 229         ctrl.Controlled().WorldCollidable(!ctrl.Controlled().WorldCollidable());
 230         if (ctrl.Controlled().WorldCollidable()) {
 231                 PostMessage("collision on");
 232         } else {
 233                 PostMessage("collision off");
 234         }
 235 }
 236
 237 void Interface::PrintBlockInfo() {
 238         std::cout << std::endl;
 239         if (!aim_chunk) {
 240                 PostMessage("not looking at any block");
 241                 Ray aim = ctrl.Aim();
 242                 std::stringstream s;
 243                 s << "aim ray: " << aim.orig << ", " << aim.dir;
 244                 PostMessage(s.str());
 245                 return;
 246         }
 247         std::stringstream s;
 248         s << "looking at block " << aim_block
 249                 << " " << Chunk::ToCoords(aim_block)
 250                 << " of chunk " << aim_chunk->Position()
 251         ;
 252         PostMessage(s.str());
 253         Print(aim_chunk->BlockAt(aim_block));
 254 }
 255
 256 void Interface::PrintChunkInfo() {
 257         std::cout << std::endl;
 258         if (!aim_chunk) {
 259                 PostMessage("not looking at any block");
 260                 return;
 261         }
 262         std::stringstream s;
 263         s << "looking at chunk " << aim_chunk->Position();
 264         PostMessage(s.str());
 265
 266         PostMessage("  neighbors:");
 267         if (aim_chunk->HasNeighbor(Block::FACE_LEFT)) {
 268                 s.str("");
 269                 s << " left  " << aim_chunk->GetNeighbor(Block::FACE_LEFT).Position();
 270                 PostMessage(s.str());
 271         }
 272         if (aim_chunk->HasNeighbor(Block::FACE_RIGHT)) {
 273                 s.str("");
 274                 s << " right " << aim_chunk->GetNeighbor(Block::FACE_RIGHT).Position();
 275                 PostMessage(s.str());
 276         }
 277         if (aim_chunk->HasNeighbor(Block::FACE_UP)) {
 278                 s.str("");
 279                 s << " up    " << aim_chunk->GetNeighbor(Block::FACE_UP).Position();
 280                 PostMessage(s.str());
 281         }
 282         if (aim_chunk->HasNeighbor(Block::FACE_DOWN)) {
 283                 s.str("");
 284                 s << " down  " << aim_chunk->GetNeighbor(Block::FACE_DOWN).Position();
 285                 PostMessage(s.str());
 286         }
 287         if (aim_chunk->HasNeighbor(Block::FACE_FRONT)) {
 288                 s.str("");
 289                 s << " front " << aim_chunk->GetNeighbor(Block::FACE_FRONT).Position();
 290                 PostMessage(s.str());
 291         }
 292         if (aim_chunk->HasNeighbor(Block::FACE_BACK)) {
 293                 s.str("");
 294                 s << " back  " << aim_chunk->GetNeighbor(Block::FACE_BACK).Position();
 295                 PostMessage(s.str());
 296         }
 297         std::cout << std::endl;
 298 }
 299
 300 void Interface::PrintLightInfo() {
 301         std::stringstream s;
 302         s
 303                 << "light level " << world.PlayerChunk().GetLight(world.Player().Position())
 304                 << " at position " << world.Player().Position()
 305         ;
 306         PostMessage(s.str());
 307 }
 308
 309 void Interface::PrintSelectionInfo() {
 310         std::cout << std::endl;
 311         Print(selection);
 312 }
 313
 314 void Interface::Print(const Block &block) {
 315         std::stringstream s;
 316         s << "type: " << block.type
 317                 << ", face: " << block.GetFace()
 318                 << ", turn: " << block.GetTurn()
 319         ;
 320         PostMessage(s.str());
 321 }
 322
 323 void Interface::ToggleAudio() {
 324         config.audio_disabled = !config.audio_disabled;
 325         if (config.audio_disabled) {
 326                 PostMessage("audio off");
 327         } else {
 328                 PostMessage("audio on");
 329         }
 330 }
 331
 332 void Interface::ToggleVisual() {
 333         config.visual_disabled = !config.visual_disabled;
 334         if (config.visual_disabled) {
 335                 PostMessage("visual off");
 336         } else {
 337                 PostMessage("visual on");
 338         }
 339 }
 340
 341 void Interface::ToggleCounter() {
 342         counter_text.Toggle();
 343         if (counter_text.Visible()) {
 344                 UpdateCounter();
 345         }
 346 }
 347
 348 void Interface::UpdateCounter() {
 349         std::stringstream s;
 350         s << std::setprecision(3) <<
 351                 "avg: " << counter.Average().running << "ms, "
 352                 "peak: " << counter.Peak().running << "ms";
 353         std::string text = s.str();
 354         counter_text.Set(font, text);
 355 }
 356
 357
 358 void Interface::Handle(const SDL_MouseMotionEvent &event) {
 359         if (config.mouse_disabled) return;
 360         ctrl.RotateYaw(event.xrel * config.yaw_sensitivity);
 361         ctrl.RotatePitch(event.yrel * config.pitch_sensitivity);
 362 }
 363
 364 void Interface::HandlePress(const SDL_MouseButtonEvent &event) {
 365         if (config.mouse_disabled) return;
 366
 367         if (event.button == SDL_BUTTON_LEFT) {
 368                 RemoveBlock();
 369                 remove_timer.Start();
 370         } else if (event.button == SDL_BUTTON_MIDDLE) {
 371                 PickBlock();
 372         } else if (event.button == SDL_BUTTON_RIGHT) {
 373                 PlaceBlock();
 374                 place_timer.Start();
 375         }
 376 }
 377
 378 void Interface::HandleRelease(const SDL_MouseButtonEvent &event) {
 379         if (config.mouse_disabled) return;
 380
 381         if (event.button == SDL_BUTTON_LEFT) {
 382                 remove_timer.Stop();
 383         } else if (event.button == SDL_BUTTON_RIGHT) {
 384                 place_timer.Stop();
 385         }
 386 }
 387
 388 void Interface::PickBlock() {
 389         if (!aim_chunk) return;
 390         selection = aim_chunk->BlockAt(aim_block);
 391         hud.Display(selection);
 392 }
 393
 394 void Interface::PlaceBlock() {
 395         if (!aim_chunk) return;
 396         Chunk *mod_chunk = aim_chunk;
 397         glm::vec3 next_pos = Chunk::ToCoords(aim_block) + aim_normal;
 398         if (!Chunk::InBounds(next_pos)) {
 399                 mod_chunk = &world.Next(*aim_chunk, aim_normal);
 400                 next_pos -= aim_normal * glm::vec3(Chunk::Extent());
 401         }
 402         mod_chunk->SetBlock(next_pos, selection);
 403         mod_chunk->Invalidate();
 404
 405         if (config.audio_disabled) return;
 406         const Entity &player = ctrl.Controlled();
 407         audio.Play(
 408                 place_sound,
 409                 mod_chunk->ToSceneCoords(player.ChunkCoords(), next_pos)
 410         );
 411 }
 412
 413 void Interface::RemoveBlock() noexcept {
 414         if (!aim_chunk) return;
 415         aim_chunk->SetBlock(aim_block, remove);
 416         aim_chunk->Invalidate();
 417
 418         if (config.audio_disabled) return;
 419         const Entity &player = ctrl.Controlled();
 420         audio.Play(
 421                 remove_sound,
 422                 aim_chunk->ToSceneCoords(player.ChunkCoords(), Chunk::ToCoords(aim_block))
 423         );
 424 }
 425
 426
 427 void Interface::Handle(const SDL_MouseWheelEvent &event) {
 428         if (config.mouse_disabled) return;
 429
 430         if (event.y < 0) {
 431                 SelectNext();
 432         } else if (event.y > 0) {
 433                 SelectPrevious();
 434         }
 435 }
 436
 437 void Interface::SelectNext() {
 438         ++selection.type;
 439         if (size_t(selection.type) >= world.BlockTypes().Size()) {
 440                 selection.type = 1;
 441         }
 442         hud.Display(selection);
 443 }
 444
 445 void Interface::SelectPrevious() {
 446         --selection.type;
 447         if (selection.type <= 0) {
 448                 selection.type = world.BlockTypes().Size() - 1;
 449         }
 450         hud.Display(selection);
 451 }
 452
 453
 454 void Interface::PostMessage(const char *msg) {
 455         messages.PushLine(msg);
 456         msg_timer.Reset();
 457         msg_timer.Start();
 458         std::cout << msg << std::endl;
 459 }
 460
 461
 462 void Interface::Update(int dt) {
 463         ctrl.Velocity(glm::vec3(fwd - rev) * config.move_velocity);
 464         ctrl.Update(dt);
 465
 466         msg_timer.Update(dt);
 467         place_timer.Update(dt);
 468         remove_timer.Update(dt);
 469
 470         aim = ctrl.Aim();
 471         CheckAim();
 472
 473         if (msg_timer.HitOnce()) {
 474                 msg_timer.Stop();
 475         }
 476
 477         if (remove_timer.Hit()) {
 478                 RemoveBlock();
 479                 CheckAim();
 480         }
 481
 482         if (place_timer.Hit()) {
 483                 PlaceBlock();
 484                 CheckAim();
 485         }
 486
 487         if (counter_text.Visible() && counter.Changed()) {
 488                 UpdateCounter();
 489         }
 490 }
 491
 492 namespace {
 493
 494 OutlineModel::Buffer outl_buf;
 495
 496 }
 497
 498 void Interface::CheckAim() {
 499         float dist;
 500         if (world.Intersection(aim, glm::mat4(1.0f), aim_chunk, aim_block, dist, aim_normal)) {
 501                 outl_buf.Clear();
 502                 aim_chunk->Type(aim_chunk->BlockAt(aim_block)).FillOutlineModel(outl_buf);
 503                 outline.Update(outl_buf);
 504                 outline_transform = glm::scale(glm::vec3(1.0002f));
 505                 outline_transform *= aim_chunk->Transform(world.Player().ChunkCoords());
 506                 outline_transform *= aim_chunk->ToTransform(Chunk::ToPos(aim_block), aim_block);
 507         } else {
 508                 aim_chunk = nullptr;
 509         }
 510 }
 511
 512
 513 void Interface::Render(Viewport &viewport) noexcept {
 514         if (config.visual_disabled) return;
 515
 516         if (aim_chunk) {
 517                 DirectionalLighting &world_prog = viewport.EntityProgram();
 518                 world_prog.SetM(outline_transform);
 519                 outline.Draw();
 520         }
 521
 522         if (counter_text.Visible()) {
 523                 counter_text.Render(viewport);
 524         }
 525
 526         if (msg_timer.Running()) {
 527                 messages.Render(viewport);
 528         }
 529
 530         hud.Render(viewport);
 531 }
 532
 533 }